2026-05-19T10:14:23Z https://jurnal.harapan.ac.id/index.php/Jitekh/oai

oai:ojs2.jurnal.harapan.ac.id:article/3 2025-08-14T08:37:58Z Jitekh:tes driver

SISTEM INFORMASI MOBILE ASSISTANT MAHASISWA JURUSAN SISTEM INFORMASI FAKULTAS KOMPUTER UNIVERSITAS POTENSI UTAMA BERBASIS ANDROID: Array Mobile Assistant, Android, Equivalence Partitioning, web service It has become a habit if students are still often not on time to attend lecture activities, in addition students also often forget to do assignments or prepare to face exams. This has an impact on the achievement of the values obtained not being maximized. In this study, researchers built a mobile Information System on Android-based smartphones as a reminder for students of the Faculty of Information Systems Department of the University's PotensiUtama. This application consists of two parts, namely Web-based for admin and Android-based for users who are connected using Web Service. This application is made in order to support and maximize lecture activities. This application is as a reminder alarm for students so that they always remember the lecture schedule, task collection schedule, and schedule of exam implementation. This Information System is also tested to get the desired results using the Black-Box Equivalence Partitioning testing method. The results of the Black-Box Equivalence Partitioning test show the system can run as expected. Sudah menjadi suatu kebiasaan jika mahasiswa masih sering tidak tepat waktu dalam menghadiri kegiatan perkuliahan, selain itu mahasiswa juga sering lupa untuk mengerjakan tugas atau mempersiapkan diri untuk menghadapi ujian. Hal ini berdampak pada pencapaian nilai yang diperoleh tidak menjadi maksimal. Dalam penelitian ini, peneliti membangun sebuah Sistem Informasi mobile pada  smartphone berbasis Android sebagai pengingat bagi mahasiswa Jurusan Sistem Informasi Fakultas Komputer Universitas Potensi Utama. Aplikasi ini terdiri dari dua bagian yaitu berbasis Web untuk admin dan berbasis Android untuk pengguna yang terhubung menggunakan Web Service. Aplikasi ini dibuat agar dapat menunjang dan memaksimalkan kegiatan perkuliahan. Aplikasi ini adalah sebagai alarm pengingat mahasiswa agar mereka selalu ingat akan jadwal perkuliahan, jadwal pengumpulan tugas, dan jadwal pelaksaan ujian. Sistem Informasi ini juga dilakukan pengujian agar mendapatkan hasil yang diinginkan dengan menggunakan metode pengujian Black-Box Equivalence Partitioning. Hasil dari pengujian Black-Box Equivalence Partitioning menunjukkan sistem dapat berjalan sesuai dengan yang diharapkan. Universitas Harapan Medan 2019-05-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/3 10.35447/jitekh.v7i01.3 JITEKH; Vol 7 No 1 (2019): Maret 2019; 1-6 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 1-6 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/3/3 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/11 2025-08-14T08:37:58Z Jitekh:tes driver

MODEL SISTEM PENDUKUNG KEPUTUSAN (SPK) TINGKAT KEPUASAN KONSUMEN TRANSPORTASI ONLINE: Array Sistem Pendukung Keputusan , Tingkat Kepuasan Konsumen Transportasi Online Transportation is the process of transferring people or goods using vehicles driven by humans or machines. The switching of conventional transportation user services to online transportation is influenced by the sophistication of communication tools (technology) and the desires of the people who always want convenience. GoJek and Grab is an online application to provide transportation services that are currently growing very rapidly in Indonesia and are starting to emerge with several other similar applications that offer various advantages, so that competition is increasingly competitive. Good public transportation must meet three basic criteria: comfort, safety and accuracy. Determining the level of customer satisfaction are five factors: product quality, price, service quality, emotional and convenience.            This research is to make a model of Decision Support System (SPK) which is used to help online transportation to know the level of customer satisfaction based on the answers of the questionnaire. The right selection will run effectively and the consumers will be satisfied. The proposed multi-criteria selection model is expected to help consumers identify the best transportation. Transportasi adalah proses pemindahan manusia atau barang dengan menggunakan wahana yang digerakkan oleh manusia atau mesin. Beralihnya jasa pengguna transportasi konvensional ke transportasi online dipengaruhi oleh faktor kecanggihan alat komunikasi (teknologi) dan keinginan masyarakat yang senantiasa menghendaki kemudahan. GoJek dan Grab merupakan aplikasi online untuk menyediakan pelayanan jasa transportasi yang saat ini berkembang sangat pesat di Indonesia dan mulai bermunculan beberapa lainnya aplikasi sejenis yang menawarkan berbagai macam kelebihan, sehingga persainganpun semakin kompetitif. Transportasi publik yang baik harus memenuhi tiga kriteria dasar, yaitu: kenyamanan, keamanan serta ketepatan. Menentukan tingkat kepuasan konsumen ada lima faktor, yaitu: kualitas produk, harga, kualitas pelayanan, emosional dan kemudahan.            Penelitian ini untuk membuat model Sistem Pendukung Keputusan (SPK) yang digunakan untuk membantu transportasi online mengetahui tingkat kepuasan konsumen berdasarkan jawaban-jawaban dari kuesioner. Seleksi yang tepat akan berjalan secara efekttif dan konsumennya akan puas. Model pemilihan multi kriteria yang diusulkan diharapkan dapat membantu konsumen mengidentifikasi transportasi yang terbaik. Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/11 10.35447/jitekh.v7i01.11 JITEKH; Vol 7 No 1 (2019): Maret 2019; 7-14 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 7-14 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/11/9 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/12 2025-08-14T08:37:58Z Jitekh:tes driver

SISTEM PAKAR UNTUK DIAGNOSA GANGGUAN PSIKOLOGIS ANAK DENGAN ALGORITMA BREADTH FIRST SEARCH (BFS): Array Android Breadth First Search Expert System Computers have now been used widely, especially in the Health sector. Today's computers / machines are equipped with various capabilities capable of recognizing human conditions, one of which is related to health. In this paper, the author will discuss the psychological health of children, including autism, ADHD and child disintegration. Early detection of psychological disorders in children using the BFS algorithm will produce an expert system that can help parents in early detection of their toddlers. Data on psychological disorders in the child will be coded according to the desired disturbance, then the results of the algorithm search will be displayed at the end of the application. The category of disorders that are entered based on the rules that have been made are 4 categories, namely normal, other disorders, autism, ADHD and child disitegation. The results obtained in this study state that the BFS algorithm can find psychological disorders in children in accordance with the rules that have been made based on child psychological experts. Komputer kini telah digunakan secara luas, terutama dalam bidang Kesehatan. Komputer / mesin saat ini yang dilengkapi dengan berbagai kemampuan mampu mengenali kondisi manusia, salah satunya terkait dengan kesehatan. Pada paper ini, penulis akan membahas terkait kesehatan psikologis pada anak antara lain autism, ADHD dan disintegrasi anak. Deteksi dini gangguan psikologis pada anak dengan menggunakan algoritma BFS akan menghasilkan sistem pakar yang dapat membantu para orang tua dalam melakukan deteksi dini pada anak-anak balita mereka. Data gangguan psikologis pada anak tersebut akan diberi kode sesuai dengan gangguan yang diinginkan, kemudian hasil dari pencarian algoritma akan ditampilkan pada bagian akhir aplikasi. Kategori gangguan yang dimasukkan berdasarkan aturan yang telah dibuat adalah 4 gangguan yaitu normal, gangguan lain, autisme, ADHD dan disitegritasi anak.  Hasil yang didapat dalam penelitian ini menyatakan bahwa algoritma BFS dapat menemukan gangguan psikologis pada anak sesuai dengan aturan yang telah dibuat berdasarkan pakar psikologis anak. Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/12 10.35447/jitekh.v7i01.12 JITEKH; Vol 7 No 1 (2019): Maret 2019; 15-22 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 15-22 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/12/10 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/13 2025-08-14T08:37:58Z Jitekh:tes driver

PERANCANGAN APLIKASI SURVEI JUMLAH PERSENTASE RELAWAN DI SEMUA WILAYAH DAPIL (DAERAH PEMILIHAN) CALON LEGISLATIF PADA PEMILIHAN UMUM: Array Design Survey Volunteer Legislature This research is based on recent decades in Indonesia which adopted a general election format to look for Legislative members who would occupy seats in the House of Representatives (DPR) whether in the central, provincial or municipal districts. Each of the Political Parties nominated his cadres to occupy the seat, as well as his cadres who became more and more vigorous to increase their popularity and gain as much sympathy from volunteers as possible. But not a few also the candidates took shortcuts by using money politics in gaining support. Using such politics will have a negative impact on the community as well as the candidate. For the community, it will be a bad example in democracy, while for candidates it will drain a lot of money and make it no longer think of their duties when elected, but he thinks how to return the money he spent to become a legislator and finally corruption. Moreover, if he is not elected, it will greatly affect his life and not a few will go crazy. The above can actually be overcome by using existing technology, namely applying an application that can see the percentage of volunteers who will support it when the election will take place. At least this application can be a benchmark for the candidate to make a decision whether he will run for office or not by seeing the chance he can win or not. If indeed the percentage of volunteers is large then he must be confident to win without having to use money politics. But if indeed the percentage of volunteers is small then he does not need to force himself to use money politics to boost vote acquisition which is sure to be detrimental and not good. In this study the software engineering methodology used in this design is object oriented and the tools used are UML graphic diagrams. While the system design used is web-based. Penelitian ini didasarkan kepada beberapa dekade belakangan ini di Indonesia yang menerapkan format pemilihan umum untuk mencari anggota Legislatif yang akan menduduki kursi di Dewan Perwakilan Rakyat (DPR) baik itu di pusat, provinsi atau kabupaten kota. Masing – masing dari Partai Politik mencalonkan para kadernya untuk menduduki kursi tersebut, begitu pula para kadernya yang kian hari makin gencar untuk meningkatkan popularitas dan meraup simpati dari relawan sebanyak mungkin. Namun tidak sedikit juga para calon mengambil jalan pintas dengan menggunakan politik uang dalam memperoleh dukungan. Dengan menggunakan cara berpolitik seperti itu akan berdampak negatif bagi masyarakat juga calon tersebut. Bagi masyarakat akan menjadi contoh buruk dalam demokrasi, sedangkan bagi calon akan menguras banyak uang dan membuatnya tidak lagi berfikir akan tugasnya pada saat terpilih, namun ia berfikir bagaimana caranya mengembalikan uang yang sudah banyak ia keluarkan untuk menjadi anggota legislatif dan akhirnya ia melakukan korupsi. Terlebih lagi jika ia tidak terpilih, maka akan sangat berdampak pada kehidupannya dan tidak sedikit yang menjadi gila. Hal tersebut diatas sebenarnya bisa diatasi dengan cara menggunakan teknologi yang ada saat ini yaitu menerapkan aplikasi yang dapat melihat persentase jumlah relawan yang akan mendukungnya pada saat akan berlangsungnya pemilihan. Setidaknya aplikasi ini dapat menjadi tolak ukur para calon untuk mengambil keputusan apakah ia akan mencalonkan diri atau tidak dengan melihat kans dirinya dapat menang atau tidak. Jika memang persentase dari relawannya besar maka ia harus percaya diri untuk menang tanpa harus menggunakan politik uang. Namun jika memang persentase dari relawannya sedikit maka ia tidak perlu memaksakan diri untuk menggunakan politik uang untuk mendongkrak perolehan suara yang pasti akan merugikan dan tidak baik. Pada penelitian ini metodologi rekayasa perangkat lunak yang digunakan dalam perancangan ini adalah berorientasi objek dan tools yang digunakan adalah UML diagram grafis. Sedangkan perancangan sistem yang digunakan adalah berbasis web Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/13 10.35447/jitekh.v7i01.13 JITEKH; Vol 7 No 1 (2019): Maret 2019; 23-28 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 23-28 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/13/11 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/14 2025-08-14T08:37:58Z Jitekh:tes driver

RANCANG BANGUN ALAT PEMBERI PAKAN DAN PENGGANTI AIR AQUARIUM OTOMATIS BERBASIS ARDUINO UNO: Array Arduino Turbidity Sensor Water Level Sensor Servo Motor First Water Pump and Second Water Pump Buzzer LCD RTC Along the development nowadays it is really needed for automatic aquariums which really helps us in doing the water replacement and feeders for fish, which the time usually will be set up on it to replace water and feeders and it will waste time especially in any busy conditions, therefore it was designed a device called Arduino-based automatical fish feeder and water replacement for aquarium. This device used Arduino as a controller device to drive the whole system. This device used a turbidity sensor that served to detect muddy water in the aquarium. Water level sensor was used for measuring water levels in aquarium. The servo motor would give an order to Arduino to open the feeder for fish. Relay was used to turn off and turn on the water pump in aquarium, where first water pump and second water pump also functioned for water disposal and replacement. The buzzer also was used to provide sound signals for feeders and water replacement. LCD would be functioned to display the time, date, woof, and water replacement warning, while Rtc was used to save the time and date. Pada perkembangan saat ini diperlukan untuk aquarium otomatis yang sangat membantu kita dalam mengerjakan penggantian air dan pemberi pakan pada ikan , biasanya akan di buat waktu untuk mengganti air dan pemberi pakan akan menyita waktu apalagi dalam keadaan sibuk , maka di Rancang lah sebuah alat pemberi pakan dan pengganti air aquarium otomatis berbasis arduino. Alat ini menggunakan arduino yang merupakan alat pengendali untuk menggerakkan sistem secara keseluruhan. Pada alat ini menggunakan sensor kekeruhan yang berfungsi untuk mendeteksi keruhnya air pada aquarium. Sensor water level untuk mengukur ketinggian air pada aquarium. Motor servo akan memberikan perintah pada arduino untuk membuka pemberi pakan pada ikan. Relay berfungsi untuk mematikan dan menghidupkan pompa air pada aquarium dan pompa air 1 dan pompa air 2 juga berfungsi untuk pembuangan air dan penggantian air. dan buzzer digunakan untuk memberikan tanda bunyi untuk pemberi pakan dan pengganti air , Lcd akan berfungsi untuk  menampilkan waktu, tanggal dan pakan peringatan penggantian air sedangkan Rtc untuk menyimpan waktu dan tanggalnya. Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/14 10.35447/jitekh.v7i01.14 JITEKH; Vol 7 No 1 (2019): Maret 2019; 29-33 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 29-33 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/14/12 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/15 2025-08-14T08:37:58Z Jitekh:tes driver

KLASIFIKASI GAMBAR DATASET FASHION-MNIST MENGGUNAKAN DEEP CONVOLUTIONAL NEURAL NETWORK: Array Deep Learning Image Classification This study uses the Fashion-MNIST dataset from Zalando Research, which consists of 60000 images for training and 10000 images for testing, each image size 28x28 pixels. The deep learning method used is the Deep Convolutional Neural Network (DCNN), with the activation function relu on the inside of the layer and softmax at the end of the layer. Test accuracy without using dropout gets 92.69% with loss of 0.445 and using dropout gets 92.84%, loss 0.206. Penelitian ini menggunakan dataset Fashion-MNIST dari Zalando Research, yang terdiri atas 60000 gambar untuk pelatihan dan 10000 gambar untuk pengujian, masing-masing gambar berukuran 28x28 piksel. Metode deep learning yang digunakan adalah Deep Convolutional Neural Network (DCNN), dengan fungsi aktivasi relu di bagian dalam layer dan softmax pada bagian akhir layer. Akurasi pengujian tanpa dropout mendapatkan hasil 92.69% dengan loss 0.445 dan dengan dropout mendapatkan hasil 92.84%, loss 0.206. Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/15 10.35447/jitekh.v7i01.15 JITEKH; Vol 7 No 1 (2019): Maret 2019; 34-38 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 34-38 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/15/13 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/16 2025-08-14T08:37:58Z Jitekh:tes driver

PEMBUATAN DAN PENGUJIAN ALAT UJI KARAKTERISTIK DAN EMISI GAS BUANG SKALA LABORATORIUM PEMBAKARAN BIOMASSA: Array Test Equipment, Characteristics Emission of Exhaust Gas Biomass Testing of the characteristics and exhaust emissions aims to determine the type of wood that is good for use as an alternative fuel in the future. Based on the description, a laboratory scale tool that is able to provide information on the characteristics and exhaust emissions of biomass is needed, which can also be used as a practical tool so that students are able to understand and know the use of good biomass fuel. Furnaces use refractory cement material for combustion chambers coated with fire bricks, and steel plate casings as insulators. The combustion chamber has a volume of 8,000 m3. The furnace is equipped with additional fan components at the front door to help drain air during direct combustion and gas analyzer sensors to get exhaust gas emissions data installed in the air outlet. The furnace that is made is able to reach a temperature of 800 oC within 360 minutes. The heat transfer rate on the furnace wall reaches 6837.6 W. Mahogany biomass samples have been successfully carried out. The test results using the tools made obtained information on water content of 12.24%, the content of flying substances 83.5%, ash content of 0.57%, and carbon content bound to 15.93%, with the results of exhaust emissions CO = 47.50 ppm , SO2 = 0.11 ppm, and NOx = 0.76 ppm. Pengujian terhadap karakteristik dan emisi gas buang bertujuan untuk mengetahui jenis kayu yang baik untuk digunakan sebagai bahan bakar alternatif di masa yang akan datang. Berdasarkan uraian tersebut maka dibutuhkan sebuah alat skala laboratorium yang mampu memberikan informasi mengenai karakteristik dan emisi gas buang pada biomassa yang juga dapat digunakan sebagai sarana praktikum sehingga mahasiswa mampu memahami dan mengetahui penggunaan bahan bakar biomassa yang baik. Tungku (furnace) menggunakan material semen tahan api untuk ruang bakar yang dilapisi bata tahan api, dan casing plat baja sebagai isolator. Ruang bakar memiliki volume 8.000 m3. Tungku dilengkapi tambahan komponen kipas pada pintu depan untuk membantu mengalirkan udara saat pembakaran langsung dan sensor gas analyzer untuk mendapatkan data emisi gas buang yang dipasang pada saluran keluar udara. Tungku (furnace) yang dibuat mampu mencapai suhu 800 oC dalam waktu 360 menit. Laju perpindahan kalor pada dinding furnace mencapai 6837,6 W. Sample biomassa kayu mahoni telah berhasil dilakukan. Hasil pengujian menggunakan alat yang dibuat didapatkan informasi kadar air 12,24  %,  kadar zat terbang 83,5 %, kadar  abu 0,57 %, dan kadar karbon terikat 15,93 %, dengan hasil emisi gas buang CO = 47,50 ppm, SO2 =0,11 ppm, dan NOx = 0,76 ppm. Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/16 10.35447/jitekh.v7i01.16 JITEKH; Vol 7 No 1 (2019): Maret 2019; 39-44 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 39-44 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/16/14 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/17 2025-08-14T08:37:58Z Jitekh:tes driver

PENENTUAN RUTE DISTRIBUSI SPARE PART KENDARAAN BERMOTOR DALAM MEMINIMALKAN BIAYA TRANSPORTASI: Array route saving matrix distance transportation The goal of the distribution system is to deliver the product promptly and generate the minimum cost. The development of distribution system is very important because it can support the growth and development of the company. This study aims to get the route of delivery of the most appropriate and optimal products and get transportation cost savings. IPK is a company engaged in the production of automotive. The problems faced by IPK is the absence of good product distribution planning and scheduling distribution process is considered not maximal. This is due to the number of routes are too many, the distance is too far delivery, the limited means of conveyance and utilization of transport space less than the maximum and the high cost of transportation. To solve the problem is Saving Matrix method which is used to determine product distribution route to customer based on the capacity of conveyance. From the result with Saving Matrix method and algorithm method obtained 49 best route. The distance to be taken is as far as 6,010 kilometers with transportation cost of Rp. 46,630,527. The resulting distance saving is 22% (1,690.9 km), while the transportation cost savings that occur is 38% or Rp. 28,494,021. Tujuan sistem distribusi adalah untuk mengirimkan produk dengan cepat dan mengeluarkan biaya yang minim. Pengembangan sistem distribusi sangat penting karena dapat mendukung perkembangan perusahaan. Permasalahan yang dihadapi PT tersebut adalah tidak adanya perencanaan distribusi produk. Penelitian ini bertujuan untuk mendapatkan rute pengiriman produk yang paling tepat dan optimal serta hemat biaya transportasinya. PT IPK merupakan perusahaan yang bergerak di bidang produksi otomotif.  Hal ini disebabkan jumlah rute terlalu banyak, jarak pengiriman jauh, keterbatasan alat angkut dan pemanfaatan ruang transportasi yang tidak maksimal. Dalam penelitian ini, menggunakan metode saving matrix. Berdasarkan hasil penelitian, jarak yang ditempuh 6.010 kilometer dengan biaya  Rp. 46.630.527,00. Penghematan jarak yang dihasilkan adalah 22 % atau sekitar 1.690,9 kilometer. Sedangkan biaya transportasi berkurang sebesar 38 % atau sekitar Rp. 28.494.021,00. Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/17 10.35447/jitekh.v7i01.17 JITEKH; Vol 7 No 1 (2019): Maret 2019; 45-49 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 45-49 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/17/15 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/18 2025-08-14T08:37:58Z Jitekh:tes driver

SISTEM INFORMASI DIGITALISASI DOKUMEN BERBASIS MULTI USER STUDI KASUS DITANKANHUT BANJARBARU: Array archive digital information multi user In the era of increasingly rapid technology for paper-based archive management, it needs to be developed in the form of digital archives or electronic documents because it facilitates management and ensures the security of information contained in files from unwanted hazards such as fire, floods, loss of data and so on. At Dinas Pertanian, Perikanan, dan Kehutanan (DITANKANHUT) Banjarbaru management of archives still uses the process of storing manual forms such as being stored in trims or cabinets in this case, it will be difficult in the archive search process if the archive has been stored for a long time and will require a large enough space to store archives office. From these problems an alternative solution can be taken, namely by building a multi-user-based Document Digitization information system to handle the document archiving process digitally and make it easier to rediscover the document. Di era teknologi yang semakin pesat untuk  pengelolaan arsip berbasis kertas perlu dikembangkan dalam bentuk arsip digital atau dokumen elektronik karena memudahkan dalam pengelolahan dan menjada keamanan dari informasi yang terkandung dalam dokumen dari bahaya  yang tidak diinginkan seperti kebakaran, banjir, kehilangan dokumen dan lain sebagainya.Pada Dinas Pertanian, Perikanan dan Kehutanan (DITANKANHUT) banjarbaru pengelolahan arsip masih menggunakan   proses penyimpanan bentuk manual seperti disimpan kedalam berangkas atau lemari dalam hal ini akan menyulitkan dalam proses pencarian arsip apabila arsip tersebut sudah lama disimpan serta akan memerlukan ruangan yang cukup luas untuk menyimpan arsip kantor. Dari permasalahan tersebut dapat diambil alternative solusi yaitu dengan cara membangun sistem informasi Digitalisasi Dokumen berbasis multi user untuk menangani proses pengarsipan dokumen secara digital serta memudahkan menemukan kembali dokumen tersebut. Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/18 10.35447/jitekh.v7i01.18 JITEKH; Vol 7 No 1 (2019): Maret 2019; 50-54 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 50-54 2549-6646 2338-5677 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/18/16 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/19 2025-08-14T08:37:58Z Jitekh:tes driver

PEMILIHAN KRITERIA PEMASOK DENGAN PENDEKATAN FUZZY-ANP PADA INDUSTRI SARUNG TANGAN: Array Fuzzy-ANP Suppliers Supply Chain Supplier plays an important role in the availability of raw materials for the ongoing production activities of a company. The selection of the right supplier can significantly reduce the cost of purchasing the company and consequently increase the competitiveness of the company. This study aims to analyze the selection of suppliers (suppliers) of soap raw materials at PT. Shamrock Manufacturing Corpora Medan with the approach of Fuzzy Analytic Network Process (FANP) Data obtained by interviewing techniques and filling out questionnaires from samples determined by Judgment sampling. Data analysis using the Fuzzy Analytic Network Process (FANP) approach, obtained results that the supplier of raw materials (suppliers), namely PT. Sei Rahayu Agung (Aek Kanopan), which weighs 0.316, second place is PT. Maja Agung (Rantau Prapat) with a weight of 0.310, the third position is DS-Salak (Kisaran) with a weight of 0.237, and the last is SG-Makmur (Rantau Prapat) with a weight of 0.184. The FANP method for selecting raw material suppliers can be applied by PT. Shamrock Manufacturing Corpora Medan as a reference in the company's development decision support system. Supplier memegang peranan penting dalam ketersediaan bahan baku untuk berlangsungnya  aktivitas  produksi  suatu  perusahaan. Pemilihan pemasok yang tepat dapat secara signifikan mengurangi biaya pembelian perusahaan dan akibatnya meningkatkan daya saing perusahaan.Penelitian ini bertujuan untuk menganalisis pemilihan pemasok (supplier) bahan baku sabun pada PT. Shamrock Manufacturing Corpora Medan dengan pendekatan Fuzzy Analytic Network Process (FANP) Data diperoleh dengan teknik wawancara dan pengisian kuesioner dari sampel yang ditentukan secara Judgement sampling. Analisis data menggunakan pendekatan Fuzzy Analytic Network Process (FANP), diperoleh hasil bahwa pemasok bahan baku (supplier) yakni PT. Sei Rahayu Agung (Aek Kanopan) yakni dengan bobot 0,316, posisi kedua adalah PT. Maja Agung (Rantau Prapat)  dengan bobot 0,310, posisi ketiga yakni DS-Salak (Kisaran) dengan bobot 0,237, dan yang terakhir adalah SG- Makmur (Rantau Prapat) dengan bobot 0,184. Metode FANP pemilihan pemasok bahan baku ini dapat diterapkan oleh PT. Shamrock Manufacturing Corpora Medan sebagai acuan dalam system pendukung keputusan pengembangan perusahaan. Universitas Harapan Medan 2019-05-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/19 10.35447/jitekh.v7i01.19 JITEKH; Vol 7 No 1 (2019): Maret 2019; 55-63 JiTEKH; Vol. 7 No. 1 (2019): Maret 2019; 55-63 2549-6646 2338-5677 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/19/17 Copyright (c) 2019 JITEKH (JURNAL ILMIAH TEKNOLOGI HARAPAN)

oai:ojs2.jurnal.harapan.ac.id:article/54 2020-12-28T13:54:10Z Jitekh:tes driver

UJI EKSPERIMEN VARIASI BAHAN FEROMAGNETIK INTI LOGAM DAN TEMPERATUR LINGKUNGAN TERHADAP PERFORMA INDUKTANSI INDUKTOR: Array UJI EKSPERIMEN VARIASI BAHAN FEROMAGNETIK INTI LOGAM DAN TEMPERATUR LINGKUNGAN TERHADAP PERFORMA INDUKTANSI INDUKTORforma Induktansi Induktor: Array Inti Logam Feromagnetik Induktansi Lilitan Temperatur Inductor with metal cores has core made of ferromagnetic material wrapped around a conductor material. The ferromagnetic material of the metal core is one of the main factors affecting the inductance performance of the inductor. Inductor metal cores in the market are generally made of iron core (Fe), so it needs to be improved by trying new materials that have not been used in the metal core inductor material. In addition, the temperature of the work environment also affecting the performance of the inductor. So it was tested from several potential materials that could increase the inductance of the inductor. The research method used was the experimental method. Experiment was carried out on three types of materials namely Cast Iron ASTM A48 (C 3.4%, Si 1.8%, Mn 0.5%), Nicrome (Ni 80%, Cr 20%), Monel Alloy 400 (Ni 63% , Cu 31.7%, Fe 2.5%, C 0.3%, Mn 2%, Si 0.5%, S 0.024%). Experimental tests on the material were also carried out on the number of coils inductors 150, 500 and 1,000 and temperature conditions 30-50 oC. The results show the largest inductance obtained in a row from ASTM A48 Cast Iron material, Iron (metal core in general), Nicrome, Monel Alloy 400 and without a metal core in the number of winding 150, 500, 1,000 and at a temperature of 30 oC, 35 oC , 40 oC, 45 oC and 50 oC. The tendency of inductance increases as the number of winding increases and the inductance decreases at higher temperatures. Induktor dengan inti logam memiliki inti yang terbuat dari bahan feromagnetik yang dililit oleh sebuah bahan konduktor. Bahan feromagnetik inti logam tersebut adalah salah satu faktor utama yang mempengaruhi kinerja induktansi induktor. Inti logam induktor yang berada dipasaran umumnya terbuat dari inti besi (Fe) sehingga perlu ditingkatkan dengan mencoba material-material baru yang belum digunakan pada bahan inti logam induktor. Selain itu, temperatur lingkungan kerja juga mempengaruhi performa induktor. Sehingga dilakukan uji coba dari beberapa material yang potensial mampu meningkatkan induktansi induktor. Metode penelitian yang dilakukan adalah metode eksperimen. Eksperimen dilakukan pada tiga jenis material yakni Besi Cor Abu ASTM A48 (C 3,4%, Si 1,8 %, Mn 0,5%), Nikrom (Ni 80%, Cr 20%), Monel Alloy 400 (Ni 63%, Cu 31,7%, Fe 2,5%, C 0,3 %, Mn 2%, Si 0.5%, S 0.024%). Uji eksperimen terhadap material tersebut juga dilakukan pada jumlah lilitan induktor 150, 500 dan 1000 serta kondisi temperatur 30 - 50 oC. Hasil penelitian menunjukan induktansi terbesar didapat berturut-turut dari material Besi Cor Abu ASTM A48, Besi (inti logam pada umumnya), Monel Alloy 400, Nikrom dan tanpa inti logam pada jumlah lilitan 150, 500, 1000 dan pada temperatur 30 oC, 35 oC, 40 oC, 45 oC dan 50 oC. Kecenderungan induktansi meningkat pada jumlah lilitan yang semakin banyak dan induktansi menurun pada temperatur yang semakin tinggi. Universitas Harapan Medan 2019-10-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/54 10.35447/jitekh.v7i02.54 JITEKH; Vol 7 No 2 (2019): September 2019; 22-28 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 22-28 2549-6646 2338-5677 10.35447/jitekh.v7i02 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/54/34 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/55 2020-12-28T13:54:10Z Jitekh:tes driver

SINTESIS NANOPARTIKEL MRGO UNTUK APLIKASI ADSORPSI LOGAM BERAT PADA LIMBAH CAIR: Array SINTESIS NANOPARTIKEL MRGO UNTUK APLIKASI ADSORPSI LOGAM BERAT PADA LIMBAH CAIR: Array Kata Kunci: MRGO, nanopartikel, adsorpsi, magnet. Abstract Telukjambe Timur District is a densely industrial area. One of the industrial estates in Karawang is the Karawang International Industrial Center (KIIC) which is already on an international scale. Industry has both positive and negative impacts. The negative impact is one of the environmental pollution by heavy metals. Heavy metals dissolved in liquid waste are dangerous to the environment, human life and other organisms. Adsorption method is an effort to overcome pollution. Adsorption is a method of separation and purification that is widely used, easy, efficient and low cost. Adsorbents Nanoparticle-based are adsorbents that have a particle size smaller than 1 micron and potentially as small as an atom with a molecular length of about 0.2 nm. Adsorbents Nanoparticle-based for dealing with heavy metals using magnetic reduced graphene oxide (MRGO). Characterization of MRGO nanoparticle material using a Fourier Transform Infra Red (FTIR) spectrometer and AAS (Atomic Adsorption Spectroscopy). The specific purpose of this study is the synthesis and characterization of MRGO nanoparticles which can be used as heavy metal absorbent materials. The benefits of this research are expected to be the basis of solutions for the development of materials for heavy metal absorber applications to reduce pollution or industrial waste pollution. The results of this study, the content of Fe waste before adding magnetic nanoparticles was 166.80 mg / L. Meanwhile, after adding magnetic nanoparticles decreased to 0.19 mg / L. The addition of rGO tends to further reduce Fe levels in the waste that is equal to 0.08 mg / L. Keywords: MRGO, nanoparticles, adsorption, magnetism Abstrak Karawang khususnya Kecamatan Telukjambe Timur merupakan kawasan yang padat akan industri. Kecamatan ini merupakan lokasi Kawasan industri Karawang International Industrial Center (KIIC) yang mana merupakan salah satu kawasan industri berskala internasional. Keberadaan industri ini tentunya memberikan dampak positif maupun negatif. Dampak negatif dari adanya banyak industri adalah penurunan kualitas lingkungan khusunya pencemaran. Keberadaan logam berat dalam limbah cair membahayakan lingkungan, kehidupan manusia maupun organisme lainnya. Upaya untuk mengatasi pencemaran diantaranya adalah dengan metode adsorpsi. Adsorpsi merupakan metode pemisahan dan pemurnian yang banyak digunakan, mudah, efisien dan low cost. Adsorben berbasis nanopartikel adalah adsorben yang memiliki ukuran partikel lebih kecil dari 1 mikron dan berpotensi sekecil atom dengan panjang molekul sekitar 0,2 nm. Adsorben berbasis nanopartikel untuk menanggulangi logam berat menggunakan magnetic reduced graphene oxide (MRGO). Karakterisasi material nanopartikel MRGO menggunakan spektrometer Fourier Transform Infra Red (FTIR) dan AAS (Atomic Adsorption Spectroscopy). Tujuan khusus penelitian ini adalah sintesis dan karakterisasi nanopartikel MRGO  yang harapannya dapat digunakan sebagai material penyerap logam berat. Manfaat penelitian ini diharapkan dapat menjadi dasar solusi untuk pengembangan material untuk aplikasi penyerap logam berat untuk mengurangi polusi atau pencemaran limbah akibat industri. Hasil dari penelitian ini, kandungan limbah Fe sebelum ditambahkan nanopartikel magnetik adalah sebesar 166,80 mg/L. Sedangkan setelah ditambahkan nanopartikel magnetik menurun menjadi 0,19 mg/L. Penambahan rGO cenderung lebih menurunkan kadar Fe dalam limbah yaitu sebesar 0,08 mg/L.   Kata Kunci: MRGO, nanopartikel, adsorpsi, magnet. Universitas Harapan Medan 2019-10-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/55 10.35447/jitekh.v7i02.55 JITEKH; Vol 7 No 2 (2019): September 2019; 29-35 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 29-35 2549-6646 2338-5677 10.35447/jitekh.v7i02 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/55/35 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/56 2022-11-16T08:20:47Z Jitekh:tes driver

MODELING THE PRODUCTION PROCESS USING IDEF0 WITH A CASE STUDY OF AUTOMOTIVE GLASS COMPANIES: Array MODELING THE PRODUCTION PROCESS USING IDEF0 WITH A CASE STUDY OF AUTOMOTIVE GLASS COMPANIES: Array Modelling, IDEF0, Production Process, Automotive Industry Pemodelan; IDEF0; Proses Produksi; Industri Otomotif One of the uses of IDEF0 is for modeling. This research makes modeling in the production process in the manufacturing industry, the automotive glass company. This company produces safety glass which is one component that is assembled in a car. The research aims to provide information about the use and understanding obtained from modeling using IDEF0. The results of the research show that the process of drawing the production process model which consists of cutting, printing, tempering and assembling is more comprehensive and clear. IDEF0 has provided an understanding of the production process, input, output, mechanism and control as well as more detailed and structured activities more easily. Salah satu pemanfaatan IDEF0 adalah untuk pembuatan pemodelan. Penelitian ini membuat pemodelan pada proses produksi dalam industri manufaktur yakni perusahaan kaca otomotif. Perusahaan ini menghasilkan kaca pengaman yang merupakan salah satu komponen yang dirakit pada sebuah mobil. Penelitian bertujuan untuk memberikan informasi mengenai pemanfaatan dan pemahaman yang diperoleh dari pemodelan yang menggunakan IDEF0. Hasil penelitian menunjukkan proses penggambaran model proses produksi yang terdiri proses cutting, printing, tempering dan assembling lebih komprehensif dan jelas. IDEF0 telah memberikan pemahaman mengenai proses produksi, input, output, mechanism dan control serta aktivitas yang lebih detail dan terstruktur dengan lebih mudah. Universitas Harapan Medan 2019-10-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/56 10.35447/jitekh.v7i02.56 JITEKH; Vol 7 No 2 (2019): September 2019; 1-7 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 1-7 2549-6646 2338-5677 10.35447/jitekh.v7i02 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/56/30 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/57 2020-12-28T13:54:10Z Jitekh:tes driver

RANCANG BANGUN PEMANAS INDUKSI LOW POWER BERBASIS MIKROKONTROLER: Array RANCANG BANGUN PEMANAS INDUKSI LOW POWER BERBASIS MIKROKONTROLER: Array indonesia Pemanas Induksi Frekuensi Mikrokontroler Induction Heating is one kind of heating that uses an induction principle. Induction heating is thought to be safer than conventional Heater due to it not depending on external heating source. The aim of this research is to understand the mechanism of controlling frequency in the heating system and Its effect on the performance of the system. From calculation and measurement, the maximum increase of  temperature of 6.8°C is obtained at freqeuncy of 10 Hz in 600 s. The Maximum average heating value was measured at 1 kHz. This heating system also had a low consumption power of 48.677 watt. Nevertheless, this system had a temperature reading error of 9.83%. Pemanas induksi merupakan jenis pemanas yang menggunakan prinsip induksi. Pemanas induksi ini dinilai lebih aman dibandingkan dengan alat memasak konvensional karena tidak menggunakan sumber api eksternal. Penelitian ini dimaksudkan untuk mengetahui cara mengontrol frekuensi dari sistem pemanas dan pengaruhnya pada kinerja sistem pemanas. Dari hasil perhitungan dan pengukuran, diketahui bahwa pada frekuensi 100 Hz terjadi kenaikan temperatur tertinggi yaitu 6,8°C dalam waktu 600 detik. Dan nilai pemanasan rata-rata tertinggi terjadi pada frekuensi 1 kHz. Selain itu pemanas induksi ini memiliki konsumsi daya cukup rendah, yaitu dengan nilai konsumsi daya rata-rata sebesar 48,677 watt. Namun demikian, pemanas ini memiliki tingkat kesalahan pembacaan temperatur yang cukup tinggi, yaitu sebesar 9,83%. Universitas Harapan Medan 2019-10-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/57 10.35447/jitekh.v7i02.57 JITEKH; Vol 7 No 2 (2019): September 2019; 8-11 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 8-11 2549-6646 2338-5677 10.35447/jitekh.v7i02 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/57/29 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/59 2020-12-28T13:54:10Z Jitekh:tes driver

PERBANDINGAN METODE NORTH WEST CORNER DAN LEAST COST DALAM MEMINIMALKAN BIAYA PENGIRIMAN BARANG PADA CABANG PT.BORWITA CITRA PRIMA: Array Pengiriman barang, North West Corner, Least Cost PT. Borwita Citra Prima is a company engaged in the field of food and non-food. PT. Borwita Citra Prima carries out the process of managing the distribution of goods to branch warehouses located in Bojonegoro and Tuban. From PT. Borwita Citra Prima Babat Branch and two branches distributing to large agents such as YKH (Babat), Anik snack (Bojonegoro), Hafiz snack (Tuban) located in several cities. The purpose of this study was to determine the completion of the shipment of goods using the North West Corner and Least Cost method. From the results of this study it can be concluded that with the application of the North West Corner and Least Cost method in the delivery of goods produced by the Branch of PT. Borwita Citra Prima can determine the shipping route with the minimum cost. So that it can help the company, especially the shipping department in determining the shipping routes. The North West Corner and Least Cost method can calculate the lowest transportation cost from a storage warehouse (depo) to the destination. The Least Cost method can determine the route with the lowest shipping transportation cost. PT. Borwita Citra Prima adalah salah satu perusahaan yang bergerak di bidang food dan non food. Cabang PT. Borwita Citra Prima melakukan proses pengelolahan distribusi barang ke gudang cabang yang terletak di Bojonegoro dan Tuban. Dari Cabang PT.Borwita Citra Prima Babat dan dua cabang mendistribusikan ke agen-agen besar seperti YKH (Babat), Anik snack (Bojonegoro), Hafiz snack (Tuban) yang terletak di beberapa kota. Tujuan penelitian ini adalah mengetahui penyelesaian pengiriman barang menggunakan metode North West Corner dan Least Cost. Dari hasil penelitian ini dapat disimpulkan bahwa dengan adanya pengaplikasiaan metode North West Corner dan Least Cost pada pengiriman barang hasil produksi Cabang PT. Borwita Citra Prima dapat menentukan rute pengiriman yang biaya paling minimum. Sehingga dapat membantu pihak perusahaan khususnya bagian pengiriman barang dalam menentukkan rute pengiriman barang. Metode North West Corner dan Least Cost dapat menghitung biaya transportasi yang paling rendah dari satu Gudang penyimpanan (depo) menuju ke tempat tujuan. Metode Least Cost dapat menentukan rute dengan biaya transportasi pengiriman terendah. Universitas Harapan Medan 2019-10-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/59 10.35447/jitekh.v7i02.59 JITEKH; Vol 7 No 2 (2019): September 2019; 12-15 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 12-15 2549-6646 2338-5677 10.35447/jitekh.v7i02 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/59/32 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/61 2020-12-28T13:54:10Z Jitekh:tes driver

SISTEM INDESK KEPUASAN MAHASISWA (STUDI KASUS: PRODI SISTEM INFORMASI UNIVERSITAS HARAPAN MEDAN): Array IKM, Mutu, Mahasiswa, Pelayanan, PIECES Quality assurance at Universitas Harapan Medan in knowing the level of student satisfaction with the services provided by institutions still uses conventional methods. So it requires high costs and a lot of time wasted. To overcome these problem’s need to be given a solution, one of them by building a system that can facilitate the quality assurance party in knowing the opinions of students. This research was conducted at the Information Systems Study Program at the Faculty of Engineering and Computer, Universitas Harapan Medan, with the aim to build a system that can measure student satisfaction index. The method applied in system development is PIECES. The PIECES method is used to determine the processes currently running, analyze existing problems and find solutions to existing problems related to system development. From the results of tests conducted, the application can run as it should by producing a satisfaction index value (Number of Weighted NRR IKM and its IKM Value), This application can also work quickly in responding to assessments and provide reports in real time. Penjaminan mutu di Universitas Harapan Medan dalam mengetahui tingkat kepuasan mahasiswa terhadap layanan yang diberikan oleh pihak institusi masih menggunakan cara yang konvensional. Sehingga memerlukan biaya yang tinggi serta banyaknya waktu yang terbuang. Untuk mengatasi masalah tersebut perlu diberikan solusi, salah satunya dengan membangun sistem yang dapat memudahkan pihak penjamin mutu dalam mengetahui pendapat mahasiswa. Penelitian ini dilaksanakan di Prodi Sistem Informasi Fakultas Teknik dan Komputer Universitas Harapan Medan dengan tujuan untuk membangun sistem yang dapat mengukur indeks kepuasan mahasiswa. Metode yang diterapkan dalam pengembangan sistem yaitu PIECES. Metode PIECES digunakan untuk mengetahui proses yang saat ini berjalan, menganalisa masalah yang ada serta mencari solusi atas permasalahan yang ada terkait dengan pengembangan sistem. Dari hasil pengujian yang dilakukan, aplikasi dapat berjalan sebagaimana mestinya dengan menghasilkan nilai indeks kepuasan (Jumlah NRR IKM Tertimbang dan Nilai IKM nya), aplikasi ini juga dapat bekerja secara cepat dalam merespon penilaian serta memberikan report secara real time. Universitas Harapan Medan 2019-10-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/61 10.35447/jitekh.v7i02.61 JITEKH; Vol 7 No 2 (2019): September 2019; 16-21 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 16-21 2549-6646 2338-5677 10.35447/jitekh.v7i02 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/61/33 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/69 2020-12-28T13:54:10Z Jitekh:tes driver

PERENCANAAN PERSEDIAAN BAHAN BAKU MENGGUNAKAN METODE MATERIAL RECRUITMENT PLANNING (MRP) PADA PT. ABC: Array Material Requirement Planning lot for lot Ketidakpastian  jumlah dan waktu permintaan pelanggan mendorong adanya persediaan. Oleh karena itu, perusahaan perlu melakukan pengendalian persediaan yang baik untuk meminimalkan investasi yang tertanam dalam persediaan dan mempertimbangkan kelancaran proses produksi. Metode Material Requirement Planning (MRP) yang digunakan dalam penelitian ini diawali dengan menyusun jadwal induk produksi, struktur produk dan daftar kebutuhan bahan, serta diakhiri dengan menganalisis besarnya jumlah pesanan optimal untuk 1 periode. Dari penelitian yang dilakukan maka akan dibuat peramalan untuk satu periode kedepan yang akan menjadi jadwal induk produksi. Dari jadwal induk produksi tersebut dilakukan perhitungan kebutuhkan produk sampai pada tingkat level terendah. Setelah diperoleh jumlah kebutuhan maka dilakukan upaya perencanan  pemesanan dan jumlah persedian yang dibutukan dengan menggunakan metode lotsize. Dari hasil perhitungan  metode peramalan yang digunakan adalah linear regression, karena menghasilkan nilai error terkecil. Sedangan untuk penentuan ukuran  pemesanan yang optimal dilakukan dengan menggunakan metode Lot for Lot (LFL) karena menghasilkan biaya terkecil sebesar Rp. 9.774.217,-. Universitas Harapan Medan 2019-10-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/69 10.35447/jitekh.v7i02.69 JITEKH; Vol 7 No 2 (2019): September 2019; 36-41 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 36-41 2549-6646 2338-5677 10.35447/jitekh.v7i02 ind https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/69/36 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/78 2020-12-28T13:54:10Z Jitekh:tes driver

Penerapan Algoritma RC4 Dan Rail Fence Untuk Enkripsi Database Mahasiswa Pada Kampus Poltekkes Kemenkes Medan: Array RC4, Rail Fence, Database At this time every institution has implemented a system login in data processing applications, especially the Poltekkes Kemenkes Medan. The login system is not enough to maintain data security. If an irresponsible person successfully to enter the database on local server (locahost), then the person has succeeded in knowing the contents of the database, this can certainly be detrimental to the Poltekkes Kemenkes Medan, because the data contained in the database can be misused. Therefore it is necessary to increase the security of data in the database. In this research an increase database security will be done with encryption techniques, encryption will be done using the algorithm RC4 and Rail Fence. RC4 is a symmetric algorithm, in which the encryption and decryption process uses the same key, and is performed on each byte bybinary xor operations. While Rail Fence is a symmetrical algorithm with transposition techniques with zig-zag patterns. The combination of these two algorithms will produce ciphertext which is difficult to solve so that it becomes stronger. Pada saat ini setiap institusi telah menerapkan sistem login pada aplikasi pengolahan data, temasuk Poltekkes Kemenkes Medan. Sistem login tidaklah cukup untuk menjaga keamanan data. Jika orang yang tidak bertanggung jawab berhasil mengaskes database pada sever local (locahost), maka orang tersebut telah berhasil mengetahui isi dari database tersebut, hal ini tentunya dapat merugikan pihak Poltekkes Kemenkes Medan, karena data yang terdapat pada database dapat disalahgunakan. Untuk itu perlu dilakukan peningkatan terhadap kemanan data pada database. Pada penelitian ini peningkatan terhadap keamanan database akan dilakukan dengan teknik enkripsi, enkripsi akan dilakukan dengan menggunakan algoritma RC4 dan Rail Fence. RC4 merupakan algoritma simetris, dimana proses enkripsi dan dekripsi menggunakan kunci yang sama, dan dilakukan pada tiap bite dengan operasi biner xor. Sementara Rail Fence merupakan algoritma simetris dengan teknik transposisi dengan pola zig-zag. Kombinasi dari kedua algoritma ini akan menghasilkan ciphertext yang sulit untuk dipecahkan sehingga menjadi lebih kuat. Universitas Harapan Medan 2019-11-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/78 10.35447/jitekh.v7i02.78 JITEKH; Vol 7 No 2 (2019): September 2019; 51-56 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 51-56 2549-6646 2338-5677 10.35447/jitekh.v7i02 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/78/42 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/80 2020-12-28T13:54:10Z Jitekh:tes driver

PERBANDINGAN METODE DIMENSI FRAKTAL DAN JARINGAN SYARAF TIRUAN BACKPROPAGATION DALAM SISTEM IDENTIFIKASI SIDIK JARI PADA CITRA DIGITAL: Array PERBANDINGAN METODE DIMENSI FRAKTAL DAN JARINGAN SYARAF TIRUAN BACKPROPAGATION DALAM SISTEM IDENTIFIKASI SIDIK JARI PADA CITRA DIGITAL: Array Fingerprint Digital Image Processing Fractal Dimension Backpropagation Otsu Identification is the process of finding the data owner. Fingerprints are a unique part of each individual. The first step of the identification process is pre-processing like cropping, sharpening, resizing and grayscale. The cropping process to take part of fingerprint on the image. The sharpening process is useful for helping the otsu method in extracting features. Resize is to change image resolution while grayscalse is to change the color image into gray image. Next is the feature extraction process using the otsu method. The otsu method is used to define the threshold when the image binary process. White pixels are a feature of fingerprints. The characteristics of fingerprints are an important part of the fingerprint. Fingerprint characteristics taken with grid process. The grid process is to divide the image into sections. The identification process uses fractal dimension and neural network method. The resemblance of the test image and the training image is measured by the correlation coefficient method. Both methods are able to identify the training image 100%. The image being tested is an image with varying damage. Percentage of ability of fractal dimension method in identifying 85% while Backpropagation method 90%. In this research, how to take on characteristics is very important for the identification process. Identifikasi adalah proses untuk mengetahui pemilik dari suatu data. Sidik jari adalah bagian unik pada setiap individu dalam mengidentifikasi data seseorang. Sebelum dilakukan proses identifikasi terhadap data sidik jari maka, pra pengolahan harus dilakukan yaitu cropping, penajaman, resize dan grayscale. Proses cropping bertujuan untuk mengambil bagian sidik jari dalam sebuah citra. Sedangkan penajaman berguna untuk membantu kinerja metode Otsu dalam mengekstraksi ciri. Resize adalah mengubah ukuran citra menjadi akuran tertentu sedangkan grayscalse yaitu mengubah citra warna menjadi citra keabuan. Selanjutnya adalah proses ekstraksi ciri menggunakan metode Otsu. Metode Otsu digunakan untuk menentukan ambang batas saat proses binerisasi citra. Piksel berwarna putih adalah ciri dari sidik jari. Ciri dari sidik jari adalah bagian penting yang ada pada sidik jari. Mengambil ciri dari sidik jari dilakukan melalui proses grid. Proses grid yaitu membagi gambar menjadi beberapa bagian. Proses identifikasi dilakukan menggunakan metode dimensi fraktal dan jaringan syaraf tiruan Backpropagation. Untuk mengukur tingkat kemiripan dari citra uji dan citra latih pada metode dimensi fraktal, digunakan persamaan koefisien korelasi. Kemampuan kedua metode dalam mengidentifikasi citra yang telah dikenalkan adalah 100% teridentifikasi untuk kedua metode. Dari hasil pengujian didapat persentase kemampuan metode dimensi fraktal dalam mengidentifikasi sebesar 85%, sedangkan metode Backpropagation 100%. Citra yang diuji adalah citra dengan tingkat kerusakan sedikit sampai banyak. Dari penelitian ini dapat disimpulkan bahwa pra pengolahan sangat mempengaruhi proses identifikasi. Universitas Harapan Medan 2019-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/80 10.35447/jitekh.v7i02.80 JITEKH; Vol 7 No 2 (2019): September 2019; 42-50 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 42-50 2549-6646 2338-5677 10.35447/jitekh.v7i02 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/80/41 Copyright (c) 2019 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/173 2020-09-03T15:39:22Z Jitekh:ART

oai:ojs2.jurnal.harapan.ac.id:article/181 2021-02-14T19:28:46Z Jitekh:tes

oai:ojs2.jurnal.harapan.ac.id:article/182 2021-02-14T19:28:52Z Jitekh:tes

oai:ojs2.jurnal.harapan.ac.id:article/184 2021-02-09T11:26:51Z Jitekh:tes

oai:ojs2.jurnal.harapan.ac.id:article/185 2021-02-14T19:28:58Z Jitekh:tes

oai:ojs2.jurnal.harapan.ac.id:article/191 2021-02-14T19:29:04Z Jitekh:tes

oai:ojs2.jurnal.harapan.ac.id:article/192 2021-02-14T19:29:11Z Jitekh:tes

oai:ojs2.jurnal.harapan.ac.id:article/193 2021-02-09T11:27:12Z Jitekh:tes

oai:ojs2.jurnal.harapan.ac.id:article/194 2025-08-14T08:38:25Z Jitekh:tes driver

PREDIKSI HARGA EMAS MENGGUNAKAN METODE SINGLE MOVING AVERAGE: Array Suwandi, Andri Prediction Gold Pawnshops Single Moving Average Gold sales should indeed be done by using a method that is easy to understand, namely to facilitate buyers and traders in conducting mortgage and predict the rise and fall of gold prices. To determine the gold price prediction using the Single Moving Avatar method, this method has a very wide application, although simple, because this method is only developing methods of the average. Some people have. Hopefully this system can help the community. Here the author provides solutions to facilitate pawnshop employees in conducting gold auctions. Single moving avarage is a method used to build a knowledge-based system. The source of knowledge of the system is obtained by collecting gold sales data. Therefore there are many problems in determining the price range and predicting the price of gold. The first step in solving a problem is by first identifying the scope of the problem to be solved, this also applies to any Artificial Intelligence (AI) programming. Penjualan emas memang sebaiknya dilakukan dengan menggunakan metode yang mudah di fahami yaitu untuk memepermudah para pembeli maupun penggadai dalam melakukan gadaian dan memprediksi turun naiknya harga emas. Untuk menentukan prediksi harga emas menggunakan metode Single moving avarage yaitu metode ini memiliki aplikasi yang sangat luas meskipun sederhanan, karena metode ini hanyalah mengembangkan metode dari rata-rata.sebagian masyarakat yang memiliki. Keberadaan sistem ini semoga dapat membantu masyarakat. Disini penulis memberikan solusi-solusinya untuk mempermudah para pegawai pegadaian dalam melakukan pelelangan emas Penalaran berbasis kasus/single moving avarage merupakan metode yang dipergunakan untuk membangun sebuah sistem berbasis pengetahuan. Sumber pengetahuan sistem diproleh dngan mengumpulkan data-data penjualan emas. Oleh karena itu banyaknya masalah-masalah dalam menentukan kisaran harga dan memprediksi harga emas tersebut. Lagkah pertama dalam menyelesaikan masalah adalah dengan cara mengidentifikasi terlebih dahulu ruang lingkup permasalahan yang akan diselesaikan, hal ini berlaku juga untuk setiap pemrograman Artifical Intellegence (AI). Universitas Harapan Medan 2020-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/194 10.35447/jitekh.v8i1.194 JITEKH; Vol 8 No 1 (2020): Maret 2020; 32-36 JiTEKH; Vol. 8 No. 1 (2020): Maret 2020; 32-36 2549-6646 2338-5677 10.35447/jitekh.v8i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/194/161 Copyright (c) 2020 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/197 2025-08-14T08:39:51Z Jitekh:tes driver

SISTEM PENDUKUNG KEPUTUSAN UNTUK MENENTUKAN TINGKAT KECERDASAN MAHASISWA DALAM PROSES PEMBELAJARAN MENGGUNAKAN METODE FUZZY ASSOCIATIVE MEMORY: Array Syahriani, Budi SPK Intelligence Students Learning Fuzzy Associative Memory As we know, the development of science, especially in the field of information technology, which is increasingly developing from year to year, in the field of information technology cannot be separated from the use of computers. Computers are a set of tools or machines that work systematically and function as electronic data processing tools that have the ability to be very fast and precise with very large quality. So STMIK Budidarma Medan, as an academic institution that is oriented towards science and information technology, establishes a curriculum that is flexible and able to accommodate existing developments. The author conducted a research at the Al-Hikmah Tanjung Balai Higher Education Foundation. From the research the writer carried out the stages and finally concluded and got the right title, namely: "Decision Support System to Determine the Level of Student Intelligence in the Learning Process Using the Fuzzy Associative Memory Method". This program is designed to have a foundation, namely to motivate students in carrying out their learning process to be even better and to include increasing the degree of the campus, in processing the data every semester is required to input the value data obtained by students through the Visual Studio program. Net 2008. Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/197 10.35447/jitekh.v8i2.197 JITEKH; Vol 8 No 2 (2020): September 2020; 41-45 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 41-45 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/197/164 Copyright (c) 2020 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/200 2025-08-14T08:39:51Z Jitekh:tes driver

E-JOB VACANCY BERBASIS MOBILE DENGAN METODE RAD: Array E-Job Vacancy Lowongan RAD Mobile Universitas Harapan Medan merupakan salah satu kampus swasta yang ada di kota Medan. Tentunya banyak lulusan baru di setiap tahunnya, kebutuhan akan sumber informasi lowongan kerja sangatlah penting bagi para mahasiswa yang ingin kuliah sambil bekerja, terutama para alumni yang baru menyelesaikan kuliahnya. Karna pada masa sekarang kebutuhan akan pekerjaan semakin meningkat, sehingga persaingan akan pekerjaan semakin ketat, Oleh karena itu dibutuhkan sebuah wadah atau tempat yang dapat dijadikan oleh alumni dan mahasiwa dalam mendapatkan informasi lowongan kerja, sehingga mempermudah alumni dan mahasiswa Universitas Harapan Medan dalam mencari lowongan pekerjaan. Pengembangan sistem ini menggunakan metode RAD (Rapid Application Development). Sistem Informasi E-Job Vacancy akan sangat sangat berguna bagi para mahasiswa Universitas Harapan Medan, dengan menggunakan sistem ini mahasiswa dapat mencari lowongan sesuai dengan skill atau jurusannnya masing-masing, serta perusahaan juga dapat memposting lowongan pekerjaan pada E-Job Vacancy berbasis Mobile ini. Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/200 10.35447/jitekh.v8i2.200 JITEKH; Vol 8 No 2 (2020): September 2020; 46-49 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 46-49 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/200/165 Copyright (c) 2020 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/204 2025-08-14T08:39:51Z Jitekh:tes driver

SISTEM INFORMASI PEMBAYARAN IURAN KEAMANAN DAN KEBERSIHAN PADA PERUMAHAN BERBASIS WEBSITE MENGGUNAKAN METODE DESIGN THINKING: Array SISTEM INFORMASI PEMBAYARAN IURAN KEAMANAN DAN KEBERSIHAN PADA PERUMAHAN BERBASIS WEBSITE MENGGUNAKAN METODE DESIGN THINKING: Array Siregar, Wandani Irvan, Irvan Rahayu, Eka Contribution Housing Security Citizens Iuran Perumahan Satpam Warga Housing is a basic human need and needs to be fostered and developed for the survival and enhancement of people's lives and livelihoods and settlements cannot be seen as mere suggestions of needs, but more than that it is a process of settling in creating a living space to socialize themselves and reveal their identity. The development method in building a Security and Cleanliness Contribution Payment Information System in Menteng Indah Housing Based on Website based on the theory of design thinking methods. Design thinking is a method used to solve problems encountered by gathering lots of ideas in brainstorming sessions using a user-centered approach. The research test is to produce a Fee Payment System in Website-Based Menteng Indah Housing, with the application of this system will facilitate citizens and security in the process of paying fees Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/204 10.35447/jitekh.v8i2.204 JITEKH; Vol 8 No 2 (2020): September 2020; 50-58 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 50-58 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/204/166 Copyright (c) 2020 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/220 2025-08-14T08:39:51Z Jitekh:tes driver

PENERAPAN METODE WEIGHTED MOVING AVERAGE UNTUK PERAMALAN PERSEDIAAN PRODUK FARMASI: Array PENERAPAN METODE WEIGHTED MOVING AVERAGE UNTUK PERAMALAN PERSEDIAAN PRODUK FARMASI: Array Silvya, Zihan Zakir, Ahmad Irwan, Dedy Products WMA Forecasting Asean Pharmacies often have difficulty in predicting future product inventory based on previously recorded data. Forecasting is very influential on the decision of the pharmacy owner to determine the number of pharmaceutical products that must be provided by the pharmacy. These problems can be solved by the Forecasting technique using the weighted moving average method to predict how many stocks of goods must be purchased for the next period. Calculation of forecasting for future periods is based on previous quarterly data calculations and can also be done based on the selection of desired periods. The purpose of this research is to build a system in predicting future sales value to increase revenue. The system will be built with the Php programming language and use the Unified Modeling Language to design the system workflow Asean Pharmacies often have difficulty in predicting future product inventory based on previously recorded data. Forecasting is very influential on the decision of the pharmacy owner to determine the number of pharmaceutical products that must be provided by the pharmacy. These problems can be solved by the Forecasting technique using the weighted moving average method to predict how many stocks of goods must be purchased for the next period. Calculation of forecasting for future periods is based on previous quarterly data calculations and can also be done based on the selection of desired periods. The purpose of this research is to build a system in predicting future sales value to increase revenue. The system will be built with the Php programming language and use the Unified Modeling Language to design the system workflow Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/220 10.35447/jitekh.v8i2.220 JITEKH; Vol 8 No 2 (2020): September 2020; 59-64 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 59-64 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/220/167 Copyright (c) 2020 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/254 2025-08-14T08:39:51Z Jitekh:tes driver

PENERAPAN METODE SMART DALAM PEMILIHAN BIJI KOPI TERBAIK: Array Decision Support System Best Coffee Beans SMART Method We can easily find coffee sellers today, both online and offline. Buying coffee in the form of beans will provide several benefits, such as a more durable aroma and usually of a higher quality. But unfortunately, now there are still many coffee buyers who don't know how to choose coffee beans with good quality. Therefore we need a system that can produce recommendations for selecting the best coffee beans based on determined criteria. This study uses the Decision Support System concept using the SMART method. The SMART method is a decision-making method to solve the problem of multi-objective choice among several criteria, so that later it can produce an effective and efficient analysis. Input criteria that become priority in the recommendation for selecting the best coffee beans are live insects (none requirements), foul smelling beans (non-existent requirements), moisture content, non-coffee dung content, defect values, and flavor (aroma). Of the 10 alternatives tested on this system, there were 5 types of coffee with a “Highly Recommended” rating, 2 types of coffee with a “Recommended” rating, and 3 types of coffee with a “Considered” rating Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/254 10.35447/jitekh.v8i2.254 JITEKH; Vol 8 No 2 (2020): September 2020; 65-70 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 65-70 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/254/168 Copyright (c) 2020 JITEKH

oai:ojs2.jurnal.harapan.ac.id:article/295 2025-08-14T08:39:51Z Jitekh:tes driver

PEMANFAATAN THERMO ELECTRIC GENERATOR DARI KONVERSI ENERGI PANAS MENJADI LISTRIK UNTUK CHARGER PONSEL: Array Silaban, Jisro Nasution, Agus Almi Roza, Indra Thermo electric generator , heat conversion to electricity cell phone charger Thermo Electric generator element is a conversion system that converts heat into electricity by utilizing heat energy. This tool is designed which comes from wood fuel as a heat source, which can be converted by a Thermo Electric Generator (TEG) into electricity, because not all rural areas have electricity, so researchers use it as a back up for cellphone chargers. This research is a small scale only used for cellphone chargers, the results show that the temperature difference is a very influential factor in producing voltage output and electric current, the greater the temperature gradient (ΔT) produced, the greater the voltage output on the thermo electric. The working principle of the TEG element is that there is a temperature difference on each side, so the TEG will generate electricity. The TEG output is stabilized by an LM317 regulator to a constant 5V DC, the voltage does not fluctuate and does not cause damage to the cellphone. This element is packaged in the form of thin strips with two-sided cross sections, with one side absorbing heat and one side absorbing cold. The tool is designed to consist of 4 TEG with type TEG 12706 arranged in series to increase tension. The results of the research on the hot temperature side of at least 40.1 0C with a voltage of 0.70V DC and a maximum heat temperature of 187 0C with a voltage of 8.55V DC and on the cold side of a minimum of 0 0C a maximum of 26 0C with (P) power 0.105 W, (V) 8V DC voltage and (I) 0.013 mA current. Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/295 10.35447/jitekh.v8i2.295 JITEKH; Vol 8 No 2 (2020): September 2020; 71-77 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 71-77 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/295/181 Copyright (c) 2020 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/296 2025-08-14T08:38:25Z Jitekh:tes driver

ANALISA PERUBAHAN SIFAT MEKANIS BAJA AISI 1045 BERDIAMETER 25 MM AKIBAT PERLAKUAN PANAS TEMPERING DAN MENGGUNAKAN TENSILE TEST DENGAN MEDIA PENDINGIN AIR: Array Gunawan, Rifki Junaidi, Junaidi Kurniawan, Fadly A. AISI 1045 steel Heat treatment Tensile test (tensile test) In the process of work experienced, especially the process of selling heat received during the processing. If the cooling process is carried out slowly, it will be possible to reach each type of micro balanced according to the chemical composition and temperature of the steel. In the manufacturing process, the required chemical composition is obtained when steel is in a liquid phase at high temperatures. During the cooling process of the melting temperature, steel begins to turn into a solid phase at a temperature of 13,500 C, in this phase there is a change in micro-structure. Normalization is the process of heating the metal until it reaches the austenite phase which is then desired slowly in AC media. The cooling results are perlite and ferrite but the results are much smoother than annelling. The voltage results after the tempering process showed the highest value at 200 oC is 1482, 311 N / mm2 and the lowest value at 400 oC was 1104, 75 N / mm2. Universitas Harapan Medan 2020-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/296 10.35447/jitekh.v8i1.296 JITEKH; Vol 8 No 1 (2020): Maret 2020; 6-10 JiTEKH; Vol. 8 No. 1 (2020): Maret 2020; 6-10 2549-6646 2338-5677 10.35447/jitekh.v8i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/296/182 Copyright (c) 2020 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/303 2025-08-14T08:38:25Z Jitekh:tes driver

OPTIMASI KINERJA TURBIN PELTON DENGAN MENGGUNAKAN2 NOZZLE DAN KEMIRINGAN BUCKET -8° DAN 8°: Array Simbolon, Jodi Junaidi, Junaidi Kurniawan, Fadly Ahmad Pelton turbine nozzle tilt bucket The power generated in the water turbine (Pelton turbine) varies depending on the flow of water entering the turbine. The research was conducted in the mechanical engineering laboratory of the Faculty of Mechanical Engineering, Universitas Harapan Medan. The experimental method is the method used in this study. By varying the 2 nozzles, the flow of water (Q) at 300 m3 / s and 375m3 / s, and at a bucket slope of -8o and 8o.The results obtained are: At -8o bucket slope the maximum turbine output power produced is 340 watts, and the minimum turbine output power is 250 watts. In the 8o tilt bucket, the maximum turbine output power generated is 460 watts, and the minimum turbine output power is 340 watts. The greatest efficiency is found in the maximum power of the turbine, which is 460 watts with an efficiency of 16%, which is found in the 8o tilt bucket. Universitas Harapan Medan 2020-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/303 10.35447/jitekh.v8i1.303 JITEKH; Vol 8 No 1 (2020): Maret 2020; 22-26 JiTEKH; Vol. 8 No. 1 (2020): Maret 2020; 22-26 2549-6646 2338-5677 10.35447/jitekh.v8i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/303/184 Copyright (c) 2020 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/305 2025-08-14T08:38:25Z Jitekh:tes driver

ANALISIS PENERAPAN TOTAL PRODUCTIVE MAINTENANCE (TPM) MELALUI METODE OVERALL EQUIPMENT EFFECTIVENESS (OEE) PADA MESIN PACKER DI PABRIK SEMEN PT. XYZ: Array Pratama, M. Agung Kurniawan, Fadly Ahmad Irwan, Ade Overall Equipment Effectiveness Availability Ratio Performance Efficiency Ratio Rate Of Quality. XYZ is a manufacturing company engaged in the production of red and white cement. PCC cement packaging uses the main machine, namely the Rotary Packer machine, the packaging depends on consumer demand.  If consumer demand continues to increase, the packaging process will take place continuously without stopping, and on the contrary, if consumer demand decreases slightly, the packaging process will also take place less.  The high downtime of the Packer 1 machine causes production targets to be achieved, delays in the distribution process, and non-productive activities for employees.  Based on these problems, the calculation of the effectiveness value on the Packer 1 machine using the Overall Equipment Effectiveness (OEE) method.  Which aims to determine the value of OEE (Overall Equipment Effectiveness) of the Packer 1 machine, to determine the comparison of the OEE value of the Packer 1 machine with international OEE values, and to determine the priority factors for repair and the root causes of problems and solutions.  Based on the results of data processing, it can be concluded that the Packer 1 machine OEE value is 16.98% which is obtained from the Availability Ratio value of 49.48%, the Performance Efficiency Ratio of 30.04 and the Rate of Quality product of 100%. Universitas Harapan Medan 2020-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/305 10.35447/jitekh.v8i1.305 JITEKH; Vol 8 No 1 (2020): Maret 2020; 11-21 JiTEKH; Vol. 8 No. 1 (2020): Maret 2020; 11-21 2549-6646 2338-5677 10.35447/jitekh.v8i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/305/183 Copyright (c) 2020 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/308 2025-08-14T08:39:51Z Jitekh:tes driver

ANALISIS PERBANDINGAN MANAJEMEN KONFIGURASI MENGGUNAKAN ANSIBLE DAN SHELL SCRIPT PADA CLOUD SERVER DEPLOYMENT AWS: Array Alfiandi, Tedi Diansyah, T. M. Liza, Risko Cloud Server Amazon Web Service Ansible Shell Script Utilization of cloud computing technology in the development of a website has significant developments such as the use of disk storage, memory, and CPUs running in the cloud at a low cost when compared to physical servers. When creates a website, human interaction in carrying out the deployment process such as creating a database and installing the packages needed by the website, all of this is done manually so it takes a lot of time. An automation process is needed to solve this problem by using ansible and shell scripts in the website deployment process. This final project will compare ansible and shell scripts as configuration management for drupal deployments to the Amazon web service EC2 server by analyzing the deployment process time, CPU and memory usage on the server, throughput, and packet loss. Based on tests that shell scripts have performed outperformed ansible at deployment time with a difference of 3 minutes, troughput generated in ansible testing is better with an average of 60,164 Kb/s and 22,009 Kb/s for shell scripts, and ansible usage against the CPU is much better because it does not make the server overloaded. Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/308 10.35447/jitekh.v8i2.308 JITEKH; Vol 8 No 2 (2020): September 2020; 78-84 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 78-84 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/308/187 Copyright (c) 2020 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/309 2025-08-14T08:38:25Z Jitekh:tes driver

PENERAPAN EVALUASI MANAJEMEN PERAWATAN DENGAN METODE OVERALL EQUIPMENT EFFECTIVENESS (OEE) PADA HASIL PRODUKSI MESIN PACKING WAFER DI PT. XYZ: Array Dermawansyah, Dermawansyah Ritonga, Din Aswan Amran Junaidi, Junaidi Maintenance Management Evaluation Overall Equipment Effectiveness Six Big Losses To produce according to production targets, of course supported by machines and equipment at every stage of the process and must be operated effectively and efficiently. operating machinery and equipment effectively and efficiently requires a good machine maintenance system. The research method used is Overall Equipment Effectiveness. After conducting the research, the average value of the Overall Equipment Effectiveness of the wafer is 34.00%. This result is still far from the world class standard of 85%. It is known that the biggest losses that cause the low OEE value are reduced speed losses by 143.3% and defect losses by 9.68% of the total losses. What causes low losses consists of factors such as machines, humans, environment, and methods. . To reduce these losses, the company should provide skills training and knowledge to operators about signs of damage to the equipment. In addition, operators are given additional work in the form of equipment maintenance that is often used at work so that maintenance work can be more focused. Then the company must pay more attention to operator comfort in working so that fatigue can be reduced and operator productivity increases and increases operator awareness of the equipment they use. Universitas Harapan Medan 2020-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/309 10.35447/jitekh.v8i1.309 JITEKH; Vol 8 No 1 (2020): Maret 2020; 27-33 JiTEKH; Vol. 8 No. 1 (2020): Maret 2020; 27-33 2549-6646 2338-5677 10.35447/jitekh.v8i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/309/185 Copyright (c) 2020 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/310 2025-08-14T08:38:25Z Jitekh:tes driver

ANALISIS PENGENDALIAN PERSEDIAAN BAHAN BAKU DENGAN MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ) DAN METODE MIN-MAX: Array Siboro, Fernando Rikardo Nasution, Rini Halila Inventory Control Economic Order Quantity Method Min-Max The research carried out is the analysis of raw material inventory control using the economic order quantity (EOQ) method and the Min-Max method. The EOQ method is a method of reducing production costs to a minimum of raw material supplies. Meanwhile, controlling raw materials using the Min-Max method serves to avoid shortages of raw material inventory that result in losses and determine reorder points. Research and the results of calculations carried out when using the EOQ method in the procurement of raw materials will get cost savings. Where the results of the analysis of the total cost of inventory. (TIC) raw materials for wheat flour for 3 consecutive years (2017-2019) based on the EOQ method experienced savings of up to IDR 4,404,510, analysis of total cost of supplies (TIC) of raw sugar for 3 consecutive years (2017 -2019) based on the EOQ method, experiencing savings of up to Rp. 2,566,065, analysis of the total cost of inventory (TIC) of butter raw materials for 3 consecutive years (2017-2019) is based on the EOQ method experiencing savings of up to Rp. 486,426, while the results Calculation of raw material inventory is done when using the Min-Max method. Wheat flour raw material inventory for 3 consecutive years (2017-2019) min stock 4,629.65 kg and max stock 313,844.64 kg, granulated sugar raw material inventory for 3 consecutive years (2017-2019) min stock 1,250 kg and max stock 2,378.6 kg, and butter raw material stock for 3 consecutive years (2017-2019 min stock  500 kg and max stock  954.64 kg. The total cost of raw material inventory calculated according to EOQ and Min-Max less (economical / economical) than that issued by the company. Universitas Harapan Medan 2020-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/310 10.35447/jitekh.v8i1.310 JITEKH; Vol 8 No 1 (2020): Maret 2020; 34-40 JiTEKH; Vol. 8 No. 1 (2020): Maret 2020; 34-40 2549-6646 2338-5677 10.35447/jitekh.v8i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/310/186 Copyright (c) 2020 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/316 2021-05-19T14:23:21Z Jitekh:tes driver

Sistem Pendukung Keputusan Untuk Menentukan Tingkat Peminatan Menu Makanan Dengan Algoritma Analytical Hierarchy Process Dan Weighted Product: Array Siregar, Annisa Fadillah Cafe Menu SPK Analytical Hierarchy Process Weighted Product The very rapid development of a restaurant or café in the city of Medan has made some coffee and food lovers flock to find a comfortable place and according to their tastes. Several café owners are competing to provide the best and best service to attract loyal customers. In some situations, the cafe owner sometimes has difficulty in determining the appropriate food menu to make the café's mainstay menu. By looking at advances in computer technology, of course, it can be used as a necessity that can become a decision support system in determining the best menu. Therefore, research will be conducted at Ateku Café as a research partner. In its application, the system can provide ranking recommendations for each menu to obtain choices. The results obtained from the calculation of this system are only as a tool for users to solve the problem of determining the best and the favorite menu of Ateku café. Perkembangan restoran atau cafe yang sangat pesat di kota Medan membuat beberapa pencinta kopi dan makanan berbondong-bondong mencari tempat yang nyaman dan sesuai dengan selera. Beberapa pemilik cafe berlomba memberikan pelayanan yang mangkus dan terbaik untuk menarik pelanggan setianya. Pada beberapa situasi pemilik cafe terkadang memiliki kesulitan dalam menentukan menu makanan yang sesuai untuk dijadikan menu andalan cafe tersebut. Dengan melihat kemajuan dibidang teknologi komputer tentunya dapat dimanfaatkan menjadi suatu kebutuhan yang dapat menjadi sistem pendukung keputusan dalam menentukan menu terbaik. Oleh sebab itu akan dilakukan riset pada cafe Ateku sebagai mitra riset. Setelah dilakukan ujicoba dari 15 menu yang tersedia dengan menggunakan AHP dengan nilai perangkingan tertinggi adalah sebesar 0,0420 dengan menu Hotplate Fried Rice sedangkan ujicoba menggunakan WP memiliki nilai paling tinggi sebesar 0,087016 dengan menu Combo Burger Ayam Crispy. Walaupun hasil yang diperoleh berbeda namun dalam pendukung keputusan yang ada dinyatakan cukup akurat. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/316 10.35447/jitekh.v9i1.316 JITEKH; Vol 9 No 1 (2021): Maret 2021; 52-57 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 52-57 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/316/236 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/317 2022-11-17T06:33:10Z Jitekh:tes driver

Penentuan Interval Waktu Maintenance Forklift Terhadap Komponen Kritis Berdasarkan Data Kerusakan Mesin Menggunakan Metode Preventive Age Replacement (Studi Kasus: PT. XXX): Array Putra Alhadi, Gustama Ritonga, Din Aswan Amran Junaidi, Junaidi Maintenance Preventive maintenance Downtime Critical analysis Forklifts Hydraulic systems transmission Avaibility A forklift is a lifting tool that functions to move goods from one place to another, with a short distance and a certain height, this heavy equipment is very useful because it can move very heavy goods in a vertical or horizontal direction. Problems that are often especially related to damage to unit components at PT.XXX, which are composed of the main part, namely the forklift engine. Damage to this section can result in downtime and delay in the production process which results in machine performance being less effective and efficient. Effectiveness in the production process requires the right strategy to keep the machine in operation by determining the optimal maintenance time interval using the criticality analysis method. After calculating with the criticality analysis method, it is found that the components of the hydraulic system and transmission are critical components. Furthermore, preventive replacement measures for hydraulic system components can be taken after 6800 hours of operation. The transmission component can also be done after operating for 900 hours or during an overhaul. While the inspection action for hydraulic system components is carried out after operating for 620.76 hours, the transmission component is carried out after operating for 540.39 hours. After checking and inspection, the avaibility value of the two components is above 95%, which means that the inspection can increase availability and prevent downtime in the unit and optimize the production process. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/317 10.35447/jitekh.v9i1.317 JITEKH; Vol 9 No 1 (2021): Maret 2021; 1-7 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 1-7 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/317/206 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/320 2022-11-17T06:34:43Z Jitekh:tes driver

Analisis Penetapan Harga Pokok dengan Metode Activity Base Costing pada Produk Bakery and Cake: Array Affandi, Muhammad Fahmi Hasibuan, Yetti Meuthia Panjaitan, Nismah Costing Analysis , Activity Based Costing Bakery and Cake The research conducted is the analysis of the costing of goods based on the method of activity based costing (ABC) to determine the cost of making a cake and determine the selling price per one cake product. So far, Bakery and Cake Shop in determining the cost of products using conventional methods, and based on the results. Research and discussion carried out at the Bakery and Cake Shop can be seen that the manufacturing costs and selling price per product have quite high advantages such as brownie cake with a manufacturing cost of IDR 32,047 and a selling price of IDR 60,000 with a profit margin of 47%, banana cake with a manufacturing cost of IDR 31,381 and a selling price of IDR 55,000 with a profit margin of 43%, Mocca rolls with a manufacturing cost of IDR 26,586 and a selling price of IDR 45,000 with a profit margin of 41%, olu Chocolate Rolls with a manufacturing cost of IDR 23,016 and a selling price of Rp. 40,000 with a minimum margin with 42%, Rollbery Rolls with a manufacturing cost of IDR 26,916 and a selling price of IDR 45,000 with a profit margin of 40%, cheese rolls with a manufacturing cost of IDR 30,916 and a selling price of IDR 55,000 with a profit margin of 44%, and pandan cake with a manufacturing cost of Rp. 25,626 and a selling price of Rp. 45,000 with a profit margin of 43%, it can be concluded that an accurate calculation of the cost of production can be done using the Activity Based Costing (ABC) method. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/320 10.35447/jitekh.v9i1.320 JITEKH; Vol 9 No 1 (2021): Maret 2021; 8-13 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 8-13 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/320/207 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/323 2022-11-17T06:35:51Z Jitekh:tes driver

Peningkatan Kualitas Batu Bata dengan Menggunakan Metode Taguchi pada UKM Batu Bata XYZ: Array Anggi, Anggi Eddy, Eddy Ariani, Farida Bricks Taguchi Quality Control The large number of brick producers in the Batu Lapan Lubuk Pakam area, Deli Serdang, as well as market competition from manufacturers who use modern machines to produce bricks have made one brick producer who still uses traditional methods of manufacture compete to improve quality brick. To obtain good quality bricks, namely by looking at the compressive strength of the bricks produced, it is necessary to have an optimal raw material composition that can be produced through experimental designs. In this study, the experimental design used was the Taguchi method. The purpose of this study was to determine the factors that influence the quality of the bricks, to know the composition of the raw materials so that the optimal quality of the bricks was obtained, to know the usefulness of the Taguchi loss function to reduce production cost losses. From the identification of controlled factors, it is obtained the factors that influence the compressive strength of the bricks, namely the composition of the material, the time of stirring, the drying time and the burning time. Experiments were carried out with four different levels of factors. From the analysis, the optimal factor level combination is factor A level 1: clay composition 50%, factor B level 2: stirring time 4 hours, factor C level 1: drying time of 1 day and factor C level 2: burning time 3 days while the Taguchi loss function is sufficient to reduce production cost losses. The test results from 200 units of bricks showed a decrease in the percentage of brick defects from 6%-7,32% to 2,5%-3%. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/323 10.35447/jitekh.v9i1.323 JITEKH; Vol 9 No 1 (2021): Maret 2021; 14-19 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 14-19 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/323/209 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/324 2022-11-17T06:36:57Z Jitekh:tes driver

Rancangan Sistem Rumah Pintar Type 45 Menggunakan Mikrokontroller ATMEGA328P Berbasis Aplikasi Android: Array Dahlan, Feri Prayogi Roza, Indra Microcontroller Arduino UNO Bluetooth HC-05 Lamp Fan Servo Servo Remote control is not something new, so the development of remote control has been done in many applications. The author designed automatic control of equipment and devices at home and buildings from a distance. The microcontroller used in this study was the ATmega 328P AVR type (Alf and Vegaard's Risc). ATmega 328P is an external microcontroller from atmel that has a RISC (Reduce Instruction Set Computer) architecture where each data execution process is faster than the CISC (Completed Intruction Set Computer) architecture. In the research, the application of access to devices in the home such as light control, fans and servo motors as a door driver using Arduino UNO as a microcontroller and Android applications as the main controller to control electronic devices. The circuit work system with a voltage of 3.3V to 5V, then each device in the circuit will be active (ArduinoUno, Bluetooth HC05 and Relay Module) with a 12V voltage on each tool. HC-05 As a connection with a maximum distance of 12M the tools can work. Based on the test results, it is obtained that the control system based on the android application using Arduino can be used as a controller for lights, fans and doors properly. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/324 10.35447/jitekh.v9i1.324 JITEKH; Vol 9 No 1 (2021): Maret 2021; 20-28 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 20-28 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/324/210 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/325 2022-11-17T06:38:13Z Jitekh:tes driver

Sistem Informasi Pelayanan Kesehatan Gigi Pasien Umum dan Peserta BPJS pada Klinik Praktek drg. Farah Chairani: Array Azhara, Diannisa Ramli, Ramli Usman, Ari Information System Health Service Patient Regirstration BPJS Participants The Practice Clinic of drg. Farah Chairani collected data on patient data, complaint data, care data, and cost data.In patient data, patients are divided into general patients and BPJS participants.Then in the maintenance data, it is also distinguished on the current treatment and ongoing care.The Practice Clinic of drg. Farah Chairani in the process of storing patient data, complaint data, care data, and cost data are still in paper documents.So when the patient's status card runs out, and data collection is done in a different place, the data is often lost and not found. In the process of searching for patient data, drg. Farah Chairani also took a long time. Due to having to look for data that is not in alphabetical order in data storage. As well as recording their financial reports, drg. Farah Chairani is still listed in the ledger.With the above problems, a desktop-based application was made to facilitate processing patient data, searching for patient data, and making financial reports at drg. Farah Chairani's Clinical Practice. And based on the results of trials on this information system, it can store patient data, search data, and make financial reports at drg. Farah Chairani's Practice Clinic. Keywords: Information System, Health Service, Patient Regirstration, BPJS Participants. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/325 10.35447/jitekh.v9i1.325 JITEKH; Vol 9 No 1 (2021): Maret 2021; 29-33 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 29-33 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/325/211 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/327 2022-11-17T06:41:12Z Jitekh:tes driver

Media Pembelajaran Pengenalan Rumah Adat Berbasis Video dan Web pada Sekolah Dasar XYZ: Array Hutasoit, Mesri M. Fitriana, Liza David, David video Web learning media for introduction traditional houses Learning media has an important role in the student learning process. Seeing the declining student learning process, shows that students' understanding of the learning material is quite low. Media that is considered appropriate and in accordance with current conditions is learning media XYZ. Elementary School is one of the schools that is in the process of social studies learning media in the subject matter of Learning Media for the Introduction of Video and Web-Based Traditional Houses at XYZ Elementary Schools still using conventional methods of using textbooks and speeches so that students' attention is easily distracted because they are less attractive. learning methods. This has the impact that the students' lack of knowledge of the learning media for the introduction of traditional houses. if to overcome this problem the researcher makes learning media in the form of videos regarding learning materials for the introduction of traditional houses. With the existence of learning media for the introduction of traditional houses, it is easier for students to understand the lessons on introducing traditional houses using videos compared to the material provided by the teacher using the textbook reading method and lectures from the teacher. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/327 10.35447/jitekh.v9i1.327 JITEKH; Vol 9 No 1 (2021): Maret 2021; 34-38 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 34-38 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/327/212 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/328 2022-11-17T06:41:43Z Jitekh:tes driver

Perhitungan Efisiensi Biaya Produksi Tahu dengan Metode Heuristic Silver Meal: Array Heuristic Silver Meal riil home industry Cost Efficiency Inventory Cost The research that was carried out was to calculate the efficiency of the production cost of tofu using the Heuristic Silver Meal method. For every tofu production, raw materials are needed. The raw materials needed to make tofu include imported soybeans and vinegar. The problem that often occurs in the Home Industry XYZ is that there is an excess supply of imported soybeans and vinegar which can cause ordering costs and storage costs for raw materials to increase. Things like this of course need to get serious attention and handling to improve the state of production activities of the home industry XYZ so as not to cause supply costs. With this problem, a research on the cost efficiency of Tofu Raw Material production is carried out in the hope that the Home industry XYZ can optimize inventory costs. the need for raw materials for making Tofu in order to maintain quality and streamline production costs. The results of the study using the Silver Meal Heuristic method were Rp. 315,059,416 and Meanwhile, using the riil method home industry is Rp. 307,741,100, from the comparison of the Silver Meal Heuristic method with the riil home industry method, the difference is Rp. 7,318,316 and the efficiency is 2.32%. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/328 10.35447/jitekh.v9i1.328 JITEKH; Vol 9 No 1 (2021): Maret 2021; 39-45 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 39-45 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/328/213 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/333 2021-03-31T23:27:50Z Jitekh:tes driver

Analisis Pengendalian Kualitas Produk Coil dengan Pendekatan Metode Six Sigma: Array Subana, Muhamad Sahrupi, Sahrupi Supriyadi, Supriyadi Cold Rolled Coil Defect Process Capability Six Sigma The cold-rolled coil is a raw material for manufacturing industries such as automotive, household appliances, property, and other industries that use steel plates. The production process during January - June 2020 was not good enough, so that the production process had a defect. The types of defects include stoppage marks, bad trimmer, and over the pickle. This study aims to measure Cpk, and sigma quality levels' process capability and analyze the root causes of low product quality. This study uses the Six Sigma method with the phase Define, Measure, Analyze and Improve. The results showed that Cpk = 1.27, and the sigma value of 3.86. Types of defects that occur are a 72,9% stoppage mark, 17,8% bad trimmer, and 9.3% over the pickle. Recommendations for improvements can be made by conducting training for employees, supervising production employees, periodic maintenance of machines/equipment, and controlling production processes. Six Sigma implementation can identify and improve the quality problems that occur. Universitas Harapan Medan 2021-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/333 10.35447/jitekh.v9i1.333 JITEKH; Vol 9 No 1 (2021): Maret 2021; 46-51 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 46-51 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/333/214 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/350 2025-08-14T08:39:51Z Jitekh:tes driver

PERANCANGAN ULANG TATA LETAK FASILITAS DENGAN MENGGUNAKAN METODE KONVENSIONAL BERBASIS 5S: Array Utari, Panca Wahyu Hasibuan, Yetti Meuthia Nasution, Rini Halila Factory Relayout 5S Conventional Methods Facility Design The facility layout design greatly affects the performance of a company. Poor facility layout will lead to poor material flow patterns and relatively high movement of materials, products, information, equipment and labor which causes delays in product completion and increases production costs. Facility layout design aims to analyze improvements in production activities. In preparing the layout of the facility, this research applies the 5S method to see what needs to be improved and to redesign the factory layout. The object of this research was conducted at PT. XYZ. The results showed that the redesign of the facility layout of the light bulb processing factory of PT.XYZ consists of several parts that must be improved in order to obtain the best final layout. The redesign of this facility layout does not have to require additional areas, this can be done by rearranging it. Based on the trial questionnaire before applyingthe 5S method,it was found that seiri,seiso,seiton,seiketsu,shitsuke needed improvement, while after redesigning using 5S method, it was found that only seiketsu and shitsuke needed improvement. Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/350 10.35447/jitekh.v8i2.350 JITEKH; Vol 8 No 2 (2020): September 2020; 85-91 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 85-91 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/350/203 Copyright (c) 2020 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/399 2022-11-17T06:42:45Z Jitekh:tes driver

Analisis Penerima Bantuan Beasiswa Program Studi Teknik Informatika Menggunakan Metode MOORA dan TOPSIS: Array Siregar, Yunita Sari Scholarship Moora Topsis During the current pandemic, there are many permanent or temporary termination of employment by the company so that it has a very significant impact on the income of parents or students, where the reduced income generated makes it difficult for students to pay tuition fees every year. Therefore, in this study, a comparative analysis of the feasibility of students to be able to receive scholarship assistance will be carried out using the Moora and Topsis methods. Moora method is one of the methods in a decision support system where the way it works is by creating a normalization matrix and calculating the optimization value of each attribute, resulting in a ranking that is done by reducing the maximum and minimum values. While Topsis method is a method that produces rankings by making alternative preferences and comparing the results of the best alternatives. The variables used in the simulation of the eligibility analysis of scholarship recipients are the Grade Point Average (GPA), Parents' Income, House Type and Children's Dependents. The results of the research using the Moora method get an accuracy value of 70% , while the Topsis method gets an accuracy value of 80%. So it can be said that the Moora method produces better decisions in the selection of eligibility for scholarship recipients in the Informatics Study Program Universitas Harapan Medan 2021-08-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/399 10.35447/jitekh.v9i1.399 JITEKH; Vol 9 No 1 (2021): Maret 2021; 58-64 JiTEKH; Vol. 9 No. 1 (2021): Maret 2021; 58-64 2549-6646 2338-5677 10.35447/jitekh.v9i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/399/267 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/422 2022-11-17T06:44:11Z Jitekh:tes driver

Penentuan Umur Dump Truck dengan Metode Optimal Replacement Interval di CV. X: Array replacement optimal replecement interval dump truck rental rate income rate Every asset in the operation of certain services, transportation or services will experience a change in each period of time. Replacement is made on an asset that is damaged, operating costs are too high, or a change in technology makes an equipment unusable. CV. X is a company engaged in providing services for transportation fleets, one of which is dump trucks. Today, companies are often faced with complex replacement problems and only apply the depreciation method to determine the life of their equipment. This study aims to propose determining the age of dump trucks with optimal replacement intervals and to find out the hourly usage costs incurred by the company at the optimal replacement age. This method uses the hourly cost as the basis for determining the optimal replacement life. The research data is in the form of secondary company data consisting of maintenance data such as vehicle purchase price data, fuel consumption, lubricant consumption, labor wages, annual operating hours, productivity, rental rate, interest rate value, and income tax rate. The parameters are in 1000 hour intervals. The optimal replacement life for dump trucks is in the interval of 30,000 hours – 40,000 hours or 12-16 years. The hourly usage cost at the optimal replacement life interval with the productivity approach is $159.74 and the hourly usage cost with the rental rate approach is $104.64. Universitas Harapan Medan 2021-09-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/422 10.35447/jitekh.v9i2.422 JITEKH; Vol 9 No 2 (2021): September 2021; 65-73 JiTEKH; Vol. 9 No. 2 (2021): September 2021; 65-73 2549-6646 2338-5677 10.35447/jitekh.v9i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/422/274 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/427 2022-11-17T06:44:55Z Jitekh:tes driver

Analisa Risk Priority Number (RPN) Terhadap Keandalan Komponen Mesin Thresher dengan Menggunakan Metode FMEA Di PT. XYZ: Array Marpaung, Satria Buana Ritonga, Din Aswan Amran Irwan, Ade crude palm oil Failure mode effect analysis corrective maintenance Availibilty PT. XYZ is a palm oil factory (PKS) producing crude palm oil (CPO). PT. XYZ has not implemented an effective engine maintenance system. The maintenance system that has been implemented is corrective maintenance, which is making repairs when there is damage. In addition, it is also assisted with planned maintenance that is scheduled every week to clean production machines. Therefore it is necessary to identify machine components that are susceptible to damage (critical components) and it is necessary to take special care measures for critical machine components by implementing a predective maintenance schedule (Prevention). Simulation techniques, often known as Monte Carlo simulation, estimate reliability using sampling random scenario. Failure mode effect analisys (FMEA) is defined as a process used to determine the actions that should be taken to ensure that each physical item or a system can run properly according to the function desired by the user then based on data processing, replacement of the roller binding drum binding drum , angle iron welding, chain transmission component replacement, drum stopper bearing replacement. Replacement of the drum stopper bolt, replacement of the chain transmission part is very loose and the replacement of the iron is carried out in corrective maintenance (replacement of components after damage occurs). And the results at the lowest value on the thresher engine component are in the Loose Transmission Chain component, the repair rate is 0.5 hours and the number is 0.999737189. Based on the results of the analysis of numbers (availability), the highest number is found in Broken Elbow Iron with a repair rate of 3 hours and the number 0.999605833 Universitas Harapan Medan 2021-09-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/427 10.35447/jitekh.v9i2.427 JITEKH; Vol 9 No 2 (2021): September 2021; 74-81 JiTEKH; Vol. 9 No. 2 (2021): September 2021; 74-81 2549-6646 2338-5677 10.35447/jitekh.v9i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/427/275 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/428 2022-11-17T06:45:45Z Jitekh:tes driver

Analisis Penerapan Perawatan pada Mesin Digester dengan Metode Overall Equipment Effectiveness (OEE) PT. XYZ: Array Tanjung, Fiqri Arif Anugrah Nasution, Fadly Ahmad Kurniawan Irwan, Ade maintenance on a digester machine overall equipment effictiveness total productive maintenance XYZ is a company engaged in the processing of palm oil into crude palm oil (CPO). In processing oil palm fruit, the digester machine is one of the machines that crush the loose fruit so that the pulp of the palm fruit can be separated from the nuts / seeds and this will facilitate the pressing process of the oil palm fruit in a screw press. Total productive maintenance (TPM) is a system that is useful in increasing factory productivity and the efficiency of company production by using machines / equipment effectively used to produce a product. The main purpose of implementing TPM is carried out through the overall equipment effectiveness analysis method to identify and types of damage to critical components that are the object of research and to increase the overall equipment effectiveness value as a performance measure of the results of this study. To determine the comparison of the overall equipment effectiveness value, the calculation of the effectiveness value of the digester machine is carried out using the overall equipment effectiveness method. Based on the results of data processing, it can be concluded that the overall equipment effectiveness value of the digester machine is 3.95%, which is obtained from the availability ratio of 41.24%, the performance efficiency ratio of 157.57 and the rate of quality product of 100%. Universitas Harapan Medan 2021-09-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/428 10.35447/jitekh.v9i2.428 JITEKH; Vol 9 No 2 (2021): September 2021; 82-90 JiTEKH; Vol. 9 No. 2 (2021): September 2021; 82-90 2549-6646 2338-5677 10.35447/jitekh.v9i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/428/276 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/430 2022-11-17T06:46:16Z Jitekh:tes driver

Sistem Pendukung Keputusan Analisa Kinerja Tenaga Honorer Menerapkan Metode WP pada Dinas Pendidikan Kabupaten Deli Serdang: Array Singarimbun, Asia Arinanda Mesran, Mesran Sarwandi, Sarwandi Siagian, Meryance V Purba, Bister Honorary Personnel DSS Weighted Product Government agencies, of course, have honorary staff. The honorary staff in its development aims to assist the performance of Civil Servants (PNS) where civil servants are already overwhelmed in carrying out the functions of the local government, one of which is in public services. Civil servants and honorary staff have an important role for the community in providing maximum public services, especially in the Deli Serdang Regency Education Office. In the process of realizing these services, the Education Office analyzes the performance of the honorary staff. The scopes to be analyzed include attendance, work discipline, cooperation, public services and other supporting factors. In the assessment process, an effective system is needed to see the results of the performance of the honorary staff, so a Decision Support System is needed to see these results. In this study the author uses a Decision Support System for Performance Analysis of Honorary Personnel at the Education Office of Deli Serdang Regency by applying the Weighted Product (WP) method. In this study, the authors also ranked the sample of honorary workers through the criteria listed to determine honorary workers who are entitled to an extension of their tenure. Universitas Harapan Medan 2021-10-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/430 10.35447/jitekh.v9i2.430 JITEKH; Vol 9 No 2 (2021): September 2021; 91-96 JiTEKH; Vol. 9 No. 2 (2021): September 2021; 91-96 2549-6646 2338-5677 10.35447/jitekh.v9i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/430/303 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/431 2022-11-17T06:46:51Z Jitekh:tes driver

Implementasi Teknologi Asynchronous dengan Menggunakan Squid Untuk Menyimpan Cache Website: Array Subarqah, Ade Diansyah, Tengku M. Handoko, Divi information bandwidth Proxy Server Cache Information technology, especially the internet, is currently growing very rapidly, due to the increasing number of people who disseminate information through the internet. The development of the number of users of Internet information technology is currently not followed by the addition of appropriate bandwidth, so problems often arise related to the speed of access to get internet services. An easy way to save bandwidth and force authentication on information traffic is to use squid. The use of Squid can be used to increase the need to speed up information retrieval. By using the Squid application, the router can be used as a proxy server for internet web cache. At the time of installing Squid without a proxy, testing was carried out on the https://www.kompas.com url and the results of the first load on a website resulted in a load time of 36 seconds, there was no difference in bandwidth usage and time whether using a proxy server or not, but the second page load on the same site with a faster load time of 30 seconds will save bandwidth. Then the installation of Squid using a proxy was carried out, testing was carried out on the https://www.kompas.com url and the results of the first load on a website resulted in a load time of 34 seconds, there was no difference in bandwidth usage and time, whether using a proxy server or not, but on the second page load on the same site with a faster load time of 16 seconds, it will save bandwidth and be faster by using squid compared to not using squid. Universitas Harapan Medan 2021-10-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/431 10.35447/jitekh.v9i2.431 JITEKH; Vol 9 No 2 (2021): September 2021; 97-103 JiTEKH; Vol. 9 No. 2 (2021): September 2021; 97-103 2549-6646 2338-5677 10.35447/jitekh.v9i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/431/304 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/432 2022-11-17T06:47:42Z Jitekh:tes driver

Analisis Perawatan (Maintenance) Mesin Screw Press di Pabrik Kelapa Sawit dengan Metode Failure Mode And Effect Analysis (FMEA) di PT. XYZ: Array Pasaribu, Muhammad Iqbal Ritonga, Din Aswan Amran Irwan, Ade Failure Mode Effect Analysis Risk Prioryti Number Flanned Maintenance XYZ is a palm oil mill . Produce crude palm oil (CPO) PT. XYZ have not implemented the system machine maintenance effectively, maintenance system that has been implemented is corrective maintenance that is make improvements when there is a break down. Besides that it is also assisted with planned maintenance scheduled every week for cleaning production machines. The refore it is necessary to identify the engine components who are prone to breakage (critical component) and necessary to do action maintenance specifically against critical components engine by applying maintenance schedule prediktif ( prevention) simulation technique, often know as estimate reliability using a random sampling scenario failure mode and effects (FMEA) defined as a process used to deter mine action to be done to guarantee each item physical or system can go well according to the function performed by its usersthen basedon data processing, replacement, inspection of turn filter componentsone time per year with atime sixty minutes, thegear box is worn outonetime per year with a time of one hundred andtwenty minutes, leaking in the engine body as much asone a year during eighty minutes, thewire caught fire one time per year with time fifty minutes, cable having problems as much one time per year with time one hundred eighty minutes. Universitas Harapan Medan 2021-10-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/432 10.35447/jitekh.v9i2.432 JITEKH; Vol 9 No 2 (2021): September 2021; 104-110 JiTEKH; Vol. 9 No. 2 (2021): September 2021; 104-110 2549-6646 2338-5677 10.35447/jitekh.v9i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/432/305 Copyright (c) 2021 JITEKH (Jurnal Ilmiah Teknologi Harapan)

oai:ojs2.jurnal.harapan.ac.id:article/516 2025-08-14T08:38:52Z Jitekh:tes driver

Sistem Pendukung Keputusan Kelurahan Terbaik Di Kecamatan Padang Hulu Kota Tebing Tinggi Menerapkan Metode Weighted Aggregated Sum Product Assesment (WASPAS): Array Iqbal, Muhammad Aripin, Soeb Azhari, Isa WASPAS Decision support system Best Kelurahan WASPAS Sistem pendukung Keputusan Kelurahan Terbaik This Decision Support System is to facilitate the selection stage of the best Kelurahan which is held by the District of Padang Hulu, Kota Tebing Tinggi. Kelurahan is the division of administrative areas in Indonesia under sub-districts. Kelurahan is the work area of ​​the lurah as a Regency or City regional apparatus. One of the efforts carried out by the best kelurahan is to encourage development carried out by the kelurahan on the basis of their own determination and strength and to determine the kelurahan that excels in the implementation of community empowerment. Decision Support System (DSS) is a system that is able to provide problem solving skills and communication skills for problems with structured and unstructured conditions. DSS aims to provide information, guide, provide predictions and direct information users so that they can make better decisions. This system is a Decision Support System (DSS) which was built using the Weighted Aggregated Sum Product Assessment (WASPAS) method. Data processing will be carried out by a selection team from the Padang Hulu sub-district office by entering the value of each sub-district in Padang Hulu District, Tebing Tinggi City. Then the system will perform calculations according to the provisions of the Weighted Aggregated Sum Product Assessment (WASPAS) method which ultimately results in a ranking that can help the selection team of the Padang Hulu District Office of Tebing Tinggi City in comparing the rankings obtained. The system built using the WASPAS method has been able to determine which village is the best in Padang Hulu District, Tebing Tinggi City.   Sistem Pendukung Keputusan ini adalah untuk memudahkan tahap seleksi Kelurahan terbaik yang di selenggarakan oleh Kecamatan Padang Hulu Kota Tebing Tinggi. Kelurahan merupakan pembagian wilayah administratif di indonesia dibawah kecamatan. Kelurahan merupakan wilayah kerja lurah sebagai perangkat daerah Kabupaten atau Kota. Salah satu upaya diselenggarakan kelurahan terbaik agar mendorong pembangunan yang dilaksanakan kelurahan atas dasar tekad dan kekuatan sendiri serta menetapkan kelurahan berprestasi dalam pelaksanaan pemberdayaan masyarakat. Sistem Pendukung Keputusan (SPK) sistem yang mampu memberikan kemampuan pemecahan masalah maupun kemampuan pengkomunikasian untuk masalah dengan kondisi terstruktur dan tak terstruktur.SPK bertujuan untuk menyediakan informasi, membimbing, memberikan prediksi serta mengarahkan kepada pengguna informasi agar dapat melakukan pengambilan keputusan dengan lebih baik. Sistem ini merupakan Sistem Pundukung Keputusan (SPK) yang dibangun menggunakan metode Weighted Aggregated Sum Product Assesment (WASPAS). Untuk pengolahan data akan dilakukan oleh tim penyeleksi dari kantor Camat Padang Hulu dengan memasukkan nilai yang dimiliki masing masing kelurahan yang ada di Kecamatan Padang Hulu Kota Tebing Tinggi.  Maka sistem akan melakukan perhitungan sesuai ketentuan metode Weighted Aggregated Sum Product Assesment  (WASPAS) yang pada akhirnya menghasilkan suatu penentuan peringkat yang dapat membantu tim seleksi Kantor Camat Padang Hulu Kota Tebing Tinggi dalam membandingkan peringkat yang di peroleh. Sistem yang di bangun dengan metode WASPAS telah mampu menentukan kelurahan mana yang terbaik dalam Kecamatan Padang Hulu Kota Tebing Tinggi. Universitas Harapan Medan 2022-03-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/516 10.35447/jitekh.v10i1.516 JITEKH; Vol 10 No 1 (2022): Maret 2022; 7-13 JiTEKH; Vol. 10 No. 1 (2022): Maret 2022; 7-13 2549-6646 2338-5677 10.35447/jitekh.v10i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/516/411 Copyright (c) 2022 Muhammad Iqbal

oai:ojs2.jurnal.harapan.ac.id:article/545 2025-08-14T08:38:52Z Jitekh:tes driver

Penerapan Metode Lean Six Sigma dalam Rangka Meningkatkan Kualitas Pelayanan di Perusahaan PT ID Express Ramadan, Prima Syarif, Abdul Azis Ariani, Farida Quality of Service Six Sigma DMAIC One of the things that become the basis for consumers to choose a company is the quality of service. The quality of service is important because it will have a direct impact on the company, especially companies engaged in the expedition sector. One type of service provided is timeliness of delivery. However, in practice the delivery time is not always on time, sometimes there are still delays in delivery. This study aims to identify the types of shipping problems that often occur and the factors that cause shipping problems and to design improvement strategies to minimize the occurrence of shipping problems. The method used in this study is the six sigma method with the DMAIC approach. Based on the research results, the type of problem that often occurs and needs to be addressed is the delay in delivery. Factors that cause delays in delivery are delays in stuffing plans, errors in informing delivery instructions to couriers, misunderstandings, shortage of manpower and unorganized workspaces. Strategies to minimize delays in the delivery of goods include adding manpower, working with focus and thoroughness, establishing active interactions between divisions, communicating various delivery information to couriers, and creating a comfortable and conducive atmosphere, as well as a neat working atmosphere. Universitas Harapan Medan 2022-08-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/545 10.35447/jitekh.v10i1.545 JITEKH; Vol 10 No 1 (2022): Maret 2022; 21-29 JiTEKH; Vol. 10 No. 1 (2022): Maret 2022; 21-29 2549-6646 2338-5677 10.35447/jitekh.v10i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/545/387 Copyright (c) 2022 prima ramadan, Abdul Azis Syarif, Farida Ariani

oai:ojs2.jurnal.harapan.ac.id:article/560 2023-04-05T04:02:50Z Jitekh:tes driver

Perancangan Kemasan Produk Kue Gipang Pangrih Menggunakan Metode Quality Function Deployment Nalhadi, Ahmad Subentar, Bayu Supriyadi, Supriyadi Desain Kemasan Kue Gipang Quality Function Deployment UMKM UMKM Kue Gipang Pangrih merupakan industri yang memproduksi makanan ringan khas kota Cilegon yang dikemas dengan plastik berisi 250 gram. Berdasarkan hasil wawancara dengan pelanggan UMKM Kue Gipang mempunyai kekurangan terkait desain kemasan yang kurang inovatif. Desain kemasan yang hampir sama dengan competitor juga menyulitkan pelanggan dalam memilih produk. Penelitian ini bertujuan mendesain ulang kemasan Kue Gipang dengan menggunakan metode Quality Function Deployment (QFD). Penelitian ini menggunakan 65 responden dengan kriteria responden melakukan transaksi dalam kurun waktu minimal empat bulan terakhir. Hasil importance rating menunjukkan desain visual dan warna kemasan. Rancangan desain kemasan Kue Gipang Pangrih mempunyai kemasan premium yang lebih cerah dengan perpaduan warna putih dan coklat. Bahan kemasan menggunakan karton/art paper dengan kapasitas dua kali lipat desain awal dan lebih tahan menahan beberapa tumpukan kue gipang. Penggunaan kemasan yang baru mampu membantu meningkatkan penjualan selama evaluasi selama 4 bulan. Redesain kemasan dengan menggunakan QFD mampu memberikan rancangan yang mendekati keinginan konsumen sehingga dapat meningkatkan citra UMKM. Universitas Harapan Medan 2022-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/560 10.35447/jitekh.v10i2.560 JITEKH; Vol 10 No 2 (2022): September 2022; 52-59 JiTEKH; Vol. 10 No. 2 (2022): September 2022; 52-59 2549-6646 2338-5677 10.35447/jitekh.v10i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/560/395 Copyright (c) 2022 Ahmad Nalhadi, Bayu Subentar, Supriyadi Supriyadi

oai:ojs2.jurnal.harapan.ac.id:article/561 2025-08-14T08:38:52Z Jitekh:tes driver

Sistem Pendukung Keputusan Penentuan Team Leader Menggunakan Metode MOOSRA Kristianto Hondro, Rivalri Aripin, Soeb DSS Team Leader Moosra The best employees are employees who have their own quality, performance and excellence in their fields, while the best employees will later become team leaders for other employees. Each team leader is an example and role model by other employees, the selection of a team leader is done to give rewards to employees who have been serious about their company and this will be a motivation for other employees to be able to achieve company goals together, the process of selecting a team leader that is This is done by many companies, the selection is often carried out by appointing employees randomly and based on personal proximity, this makes many other employees experience injustice in a job and this can have a negative impact on the sustainability of the company. Because choosing the wrong person to be a team leader needs to be done the selection and selection of employees to become a team leader uses a system to avoid mistakes in selecting a team leader, a system can find accurate and precise value results based on the logic of a decision-making method. The MOOSRA method, which is a very complex method and has simple stages, is used in consideration of the selection of a team leader so that the results of the research from the calculation of the criteria value are found, a value of 0.585 is found which is the highest value as the first rank that deserves to be chosen as a team leader Universitas Harapan Medan 2022-08-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/561 10.35447/jitekh.v10i1.561 JITEKH; Vol 10 No 1 (2022): Maret 2022; 1-6 JiTEKH; Vol. 10 No. 1 (2022): Maret 2022; 1-6 2549-6646 2338-5677 10.35447/jitekh.v10i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/561/385 Copyright (c) 2022 Rivalri Kristianto Hondro, Soeb Aripin

oai:ojs2.jurnal.harapan.ac.id:article/562 2025-08-14T08:38:52Z Jitekh:tes driver

Penerapan Weighted Aggregated Sum Product Assesment (WASPAS) Pada Pemilihan Kepala Lingkungan Terbaik Medan Kota Finces Manao, Mignit Harahap, Ria Zulkarnaen Hulu, Yuni Kristiani Chief of Village Decision Support System WASPAS The Chief of Village is an extension of the village head in helping or providing the best service to the community as well as administrative management in the village or other problems. It is only natural for a Chief of Village to be given an appreciation for his performance during his tenure, especially a Chief of Village in the Medan Kota sub-district, before the election of the Chief of Village in the sub-district was very ineffective and efficient and also seemed unfair. Therefore, the selection of the best Chief of Village must use a system to produce accurate values, so that there is no error in the selection of kepling in the Medan Kota sub-district. To overcome the process of selecting the best chip that is experiencing these obstacles by using an application called a Decision Support System.To do the ranking or determine the best neighborhood head using the WASPAS method, this method provides decision makers who make decisions based on the highest ranking or score. Universitas Harapan Medan 2022-08-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/562 10.35447/jitekh.v10i1.562 JITEKH; Vol 10 No 1 (2022): Maret 2022; 30-36 JiTEKH; Vol. 10 No. 1 (2022): Maret 2022; 30-36 2549-6646 2338-5677 10.35447/jitekh.v10i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/562/388 Copyright (c) 2022 Mignit Finces Manao, Ria Zulkarnaen Harahap, Yuni Kristiani Hulu

oai:ojs2.jurnal.harapan.ac.id:article/564 2025-08-14T08:38:52Z Jitekh:tes driver

Kontrol Pengereman Sepeda Listrik Berbasis Internet of Things (IoT) dengan Monitoring GPS Maydia Anggraeni, Putri Sulistiyowati, Indah Wisaksono, Arief Braking Brake Control System Electric Bike NodeMCU ESP826 Motor vehicles dominate the occurrence of accidents on the highway although there are several factors that cause it, among others, due to mechanical factors and human factors. This electric bicycle is still being developed with features that can improve driving safety which will later have a function to avoid collisions with objects in front of it. By using an ultrasonic sensor as a distance detector and NodeMCU ESP8266 as a microcontroller and with a GPS sensor that displays a map display in the blynk application, this system is expected to be able to create security for motorists so as to reduce the risk of accidents with vehicles or objects in front and at the same time can monitor vehicle position via smartphone. In this study, which will be implemented on an electric bicycle, braking success is obtained without hitting the object in front of it with an average speed of 10-15 km/hour and a maximum distance of 6m from the object and stopping 1m behind the object with 100% accuracy. Braking works from a distance of 3m to the object in front of it and will stop slowly according to the variables at a speed of 3m stop slowly 95o, 2m stop slowly 45o and 1m will stop slowly until it stops, and get slow braking when this automatic brake works Universitas Harapan Medan 2022-08-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/564 10.35447/jitekh.v10i1.564 JITEKH; Vol 10 No 1 (2022): Maret 2022; 14-20 JiTEKH; Vol. 10 No. 1 (2022): Maret 2022; 14-20 2549-6646 2338-5677 10.35447/jitekh.v10i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/564/412 Copyright (c) 2022 Putri Maydia Anggraeni, Indah Sulistiyowati, Arief Wisaksono

oai:ojs2.jurnal.harapan.ac.id:article/565 2025-08-14T08:38:52Z Jitekh:tes driver

Analisis Deteksi Corona Virus Dengan Menggunakan Metode Forward Chaining Zulla, Hafiz Handoko, Divi Expert system Covid-19 Corona Forward Chaining This virus originated from Covid-19 or Corona Virus which has had an impact and symptoms that can kill humans with various complications of the disease they suffer. The problem that occurs is the panic of people who are reluctant to leave the house and are afraid of being exposed to the Corona Virus to carry out daily activities even to seek treatment at the hospital with symptoms that resemble the symptoms of exposure to the Corona Virus. coupled with the number of hospitals that are responsible for handling the Corona Virus which is a top priority for handling minor illnesses in general. Therefore, an expert system application for the diagnosis of Covid-19 or Corona Virus is needed. The expert system also requires a method that can operate, in this study the method used is Forward Chaining, the forward chaining method solves every symptom that appears and follows the next symptom in the same rule so that a decision tree is formed Universitas Harapan Medan 2022-08-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/565 10.35447/jitekh.v10i1.565 JITEKH; Vol 10 No 1 (2022): Maret 2022; 37-44 JiTEKH; Vol. 10 No. 1 (2022): Maret 2022; 37-44 2549-6646 2338-5677 10.35447/jitekh.v10i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/565/386 Copyright (c) 2022 Hafiz Zulla, Divi Handoko

oai:ojs2.jurnal.harapan.ac.id:article/566 2025-08-14T08:38:52Z Jitekh:tes driver

Sistem Informasi Penjualan Berbasis Android Pada Outlet Marboba Sistem Informasi Penjualan Berbasis Android Pada Outlet Marboba Raffin, Adelonix Regia Sucipto, Sucipto Wardani, Anita Sari Android MYSQL PHP UML Waterfall Android MYSQL PHP UML Waterfall Pemilik usaha yang mempunyai cabang sering mengalami kesusahan dalam pelayanannya kepada pelanggan disaat outlet sedang ramai. Penghitungan hasil transaksi yang hanya mengandalkan sebuah kalkulator dan tanpa dukungan sebuah Smartphone. Berdasarkan tinjauan masalah yang terjadi pada penelitian ini yang masih menggunakan kasir manual maka dibuatlah system informasi penjualan berbasis android. Dalam pengerjaannya perlu dilakukan beberapa proses.Perancangan pada algoritma perancangan prosedur dan struktur aplikasi sebagai konsep untuk aplikasi yang akan dibuat. Rancangan proses bisnis sistem ini menggunakan UML yang menggambarkan seluruh fungsional sistem yang akan dibuat.Implementasi akan dilakukan dengan memasukkan beberapa data yang dibutuhkan untuk memastikan aplikasi ini berjalan tanpa kendala. Imlementasi untuk dapat mengintegrasikan PHP dan MySql dengan aplikasi android yaitu menggunakan Server web, dan akses database yang digunakan di aplikasi android dengan mengunakan MySql. Aplikasi ini akan berkomunikasi dengan halaman PHP dengan parameter yang diperlukan dan PHP akan menghubungi database MYSQL dan akan mengambil hasilnya dalam bentuk website kemudian akan dilakukan kompresi website ke APK sistem informasi aplikasi penjualan android. Pemilik usaha yang mempunyai cabang sering mengalami kesusahan dalam pelayanannya kepada pelanggan disaat outlet sedang ramai. Penghitungan hasil transaksi yang hanya mengandalkan sebuah kalkulator dan tanpa dukungan sebuah Smartphone. Berdasarkan tinjauan masalah yang terjadi pada penelitian ini yang masih menggunakan kasir manual maka dibuatlah system informasi penjualan berbasis android. Dalam pengerjaannya perlu dilakukan beberapa proses.Perancangan pada algoritma perancangan prosedur dan struktur aplikasi sebagai konsep untuk aplikasi yang akan dibuat. Rancangan proses bisnis sistem ini menggunakan UML yang menggambarkan seluruh fungsional sistem yang akan dibuat.Implementasi akan dilakukan dengan memasukkan beberapa data yang dibutuhkan untuk memastikan aplikasi ini berjalan tanpa kendala. Imlementasi untuk dapat mengintegrasikan PHP dan MySql dengan aplikasi android yaitu menggunakan Server web, dan akses database yang digunakan di aplikasi android dengan mengunakan MySql. Aplikasi ini akan berkomunikasi dengan halaman PHP dengan parameter yang diperlukan dan PHP akan menghubungi database MYSQL dan akan mengambil hasilnya dalam bentuk website kemudian akan dilakukan kompresi website ke APK sistem informasi aplikasi penjualan android. Universitas Harapan Medan 2022-08-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/566 10.35447/jitekh.v10i1.566 JITEKH; Vol 10 No 1 (2022): Maret 2022; 45-51 JiTEKH; Vol. 10 No. 1 (2022): Maret 2022; 45-51 2549-6646 2338-5677 10.35447/jitekh.v10i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/566/410 Copyright (c) 2022 Adelonix Regia Raffin, Sucipto Sucipto, Anita Sari Wardani

oai:ojs2.jurnal.harapan.ac.id:article/571 2023-04-05T04:02:50Z Jitekh:tes driver

Analisis Keamanan Jaringan Pada Jaringan Wireless Dari Serangan Man In The Middle Attack DNS Spoofing Pangestu, Teguh Liza, Risko Kali linux ubuntu man in the middle attack DNS spoofing wireshark firewall Currently the use of wireless technology (wireless) is widely used in institutions, companies, schools and so on. Wireless is very useful because it can facilitate human interaction activities in sending data and so on. However, the existence of wireless is not completely safe in carrying out human interaction activities in sending data and so on, one of which is the illegal man in the middle attack DNS spoofing activity. With these illegal activities, a security system is needed which is expected to prevent illegal man in the middle attack DNS spoofing activities. The results of the attack are obtained based on 7 tests by calculating the quality of service (QOS), namely packet loss with the results of attack 1 model 1 with packet loss 0.154%, attack 2 model 1 with packet loss 0.234%, attack 3 model 1 with packet loss 0.291%, attack 1 model 2 with packet loss 0.173%, attack 2 model 2 with packet loss 0.128%, attack 3 model 2 with packet loss 0.028%, attack 4 model 2 with packet loss 0.231%, which means this attack can run well. And the results by utilizing a firewall security system can only prevent it by cutting off communication interactions between the attacker and the victim and the victim and the attacker. Universitas Harapan Medan 2022-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/571 10.35447/jitekh.v10i2.571 JITEKH; Vol 10 No 2 (2022): September 2022; 60-67 JiTEKH; Vol. 10 No. 2 (2022): September 2022; 60-67 2549-6646 2338-5677 10.35447/jitekh.v10i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/571/396 Copyright (c) 2022 Teguh Pangestu, Risko Liza

oai:ojs2.jurnal.harapan.ac.id:article/579 2023-04-05T04:02:50Z Jitekh:tes driver

Penerapan Metode Reorder Point pada Persediaan Stok Barang Berbasis Website Sahputra, M. Rezky Rahayu, Eka Nurjamiyah, Nurjamiyah Inventory Reorder Point Website Waterfall The data collection of incoming and outgoing goods is still semi-manual by being recorded in a book, then every month it is transferred to excel, making data collection not recorded accurately, so that there is often a discrepancy between the data of the goods that come out and the written data, this results in the unknown number of remaining goods being delivered. available in the warehouse for sure. That way the company does not know when to reorder its stock of goods. The purpose of this research is to build a website-based inventory information system for distribution outlet businesses or commonly called distributions. In determining the right amount of inventory to place an order for stock of goods back by using the Reorder Point method. This website was built using the PHP programming language and MySQL database as well as the CodeIgniter framework. The system development uses the Waterfall method, and the system design uses the Unified Modeling Language (UML). The results of this study are a website-based inventory information system application using the reorder point method which can be used to facilitate the process of collecting data on receipt of goods and expenditure of goods, and the reorder point method can be used as a solution in determining the inventory of an item to be reordered so as to minimize the occurrence shortage or even out of goods. Universitas Harapan Medan 2022-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/579 10.35447/jitekh.v10i2.579 JITEKH; Vol 10 No 2 (2022): September 2022; 68-74 JiTEKH; Vol. 10 No. 2 (2022): September 2022; 68-74 2549-6646 2338-5677 10.35447/jitekh.v10i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/579/397 Copyright (c) 2022 M. Rezky Sahputra, Eka Rahayu, Nurjamiyah Nurjamiyah

oai:ojs2.jurnal.harapan.ac.id:article/580 2023-04-05T04:02:50Z Jitekh:tes driver

Perbandingan Weight Moving Average dan Single Exponential Smoothing pada Peramalan Persediaan Produk Farmasi Sari, Novita Hasdiana, Hasdiana Rahayu, Eka Forecasting WMA SES Website Satria Pharmacy is a drug product selling business that only sells various kinds of pharmaceutical products. Pharmacies Satria often have difficulty in predicting future product inventories based on previously recorded data. Forecasting is very influential on the decision of the pharmacy owner to determine the number of pharmaceutical products that must be provided by the pharmacy. In developing this forecasting system, the writer uses the Weighted Moving Average (WMA) and Single Exponential Smoothing (SES) forecasting methods. The purpose of this study is to apply the Weight Moving Everage (WMA) and Single Exponential Smoothing (SES) methods to determine the accuracy of the Weight Moving Average (WMA) and Single Exponential Smoothing (SES) methods with the MSE technique. The results of this study are a website-based system that can forecast and produce value comparisons between the Weight Moving Everage and Single Exponential Smoothing methods where in the overall calculation of the error value with Mean Square Error (MSE) there are 54,95 for the WMA method and for the WMA method. SES has a value of 40,79, with that the SES method as a whole predicts better than the WMA method Universitas Harapan Medan 2022-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/580 10.35447/jitekh.v10i2.580 JITEKH; Vol 10 No 2 (2022): September 2022; 75-83 JiTEKH; Vol. 10 No. 2 (2022): September 2022; 75-83 2549-6646 2338-5677 10.35447/jitekh.v10i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/580/398 Copyright (c) 2022 Novita Sari, Hasdiana Hasdiana, Eka Rahayu

oai:ojs2.jurnal.harapan.ac.id:article/581 2023-04-05T04:02:50Z Jitekh:tes driver

Rancang Bangun Alat Pengusir Hama Burung Berbasis Arduino Uno Manurung, Syafri Maradu Wanto, Anjar Gunawan, Indra Bird pests bird repellent arduino uno ultrasonic sensor Bird pests are one of the problems that always haunt farmers, these pests often make it difficult for farmers, plus during the rice harvest period, bird pests will increase, thereby reducing the production yields that will be produced. The purpose of this study is to make an Arduino Uno-based bird repellent using an ultrasonic sensor, which is to read if a bird approaches it will automatically activate the sound that has been installed on a bird repellent that resembles a scarecrow. In addition, this tool can also move automatically if there are pests that come, the result of this study is the application of Bird Pest Repellents that can be implemented in rice fields. Universitas Harapan Medan 2022-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/581 10.35447/jitekh.v10i2.581 JITEKH; Vol 10 No 2 (2022): September 2022; 84-90 JiTEKH; Vol. 10 No. 2 (2022): September 2022; 84-90 2549-6646 2338-5677 10.35447/jitekh.v10i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/581/399 Copyright (c) 2022 Syafri Maradu Manurung, Anjar Wanto, Indra Gunawan

oai:ojs2.jurnal.harapan.ac.id:article/688 2023-05-20T15:37:52Z Jitekh:tes driver

Arsitektur Perusahaan untuk Mendukung Transformasi Digital Study Literature Review Syam, Wahyunia Ningsih W.A, Bambang Soedijono Muhammad, Alva Hendi Digital Transformation Enterprise Architecture SLR Tujuan penelitian ini untuk menggambarkan perkembangan studi terkait Enterprise Archtiecture (EA) dalam mendukung Transformasi Digital. Metode Systematic Literature Review (SLR) digunakan, diperoleh 36.513 studi diambil dengan pencarian manual dalam dua database dan 12 studi primer akhirnya dimasukan dengan tahun yang dibatasi 2018 hingga 2022. Akibatnya 7 permasalahan/isu, kontribusi EA berdasarkan permasalahan/isu dan sektor penelitian diidentifikasi dan di analisis. Hasilnya menunjukkan bahwa perkembangan studi terkait EA dalam mendukung Transformasi Digital dalam lima tahun terakhir mengalami penurunan. Studi terkait permasalahan/isu manfaat EAM menyatakan masih menunjukkan kelemahan EA dalam mendukung Transformasi Digital. Sektor penelitian menunjukan masih sangat terbatas yaitu pada sektor UKM dan kesehatan. Ulasan ini memberi peneliti beberapa pedoman untuk peneliti di masa depan tentang topik ini. Universitas Harapan Medan 2023-05-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/688 10.35447/jitekh.v11i1.688 JITEKH; Vol 11 No 1 (2023): Maret 2023; 1-9 JiTEKH; Vol. 11 No. 1 (2023): Maret 2023; 1-9 2549-6646 2338-5677 10.35447/jitekh.v11i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/688/518 Copyright (c) 2023 Wahyunia Ningsih Syam; Bambang Soedijono W.A, Alva Hendi Muhammad

oai:ojs2.jurnal.harapan.ac.id:article/694 2023-05-20T15:37:52Z Jitekh:tes driver

Perencanaan Perawatan Mesin Electrolytic Tinning Line Menggunakan Metode Risk Based Maintenance Wahyuli, Ira Maharani, Ardita Nalhadi, Ahmad Supriyadi, Supriyadi Fault Tree Analysis Risk Based Maintenance Risk Priority Number Sistem Pemeliharaan Mesin Electrolytic Tinning Line adalah mesin yang penting dalam produksi tinplate, yang merupakan bahan dasar untuk membuat kaleng makanan dan minuman. Dalam proses produksinya, mesin ini mengalami downtime sehingga berpengaruh pada proses produksi tinplate. Penelitian ini bertujuan mengidentifikasi risiko kegagalan menggunakan Risk Based Maintenance (RBM) dan merekomendasikan sistem pemeliharaan berdasarkan hasil Fault Tree Analysis (FTA). RBM digunakan menentukan tingkat kerusakan pada mesin produksi. FTA dapat mem­prediksi probabilitas kegagalan dan meng­identifikasi sebab akar kegagalan secara sistematis. Penelitian ini menggunakan data proses produksi selama tahun 2020. Berdasarkan hasil dari identifikasi risiko menggunakan RBM diperoleh hasil bahwa abration dan dent merupakan dua jenis kegagalan yang menjadi prioritas dan termasuk kategori catastrophic dengan nilai RPN sebesar 648 dan 512 . Hasil identifikasi menggunakan FTA diketahui bahwa penyebab defect abration adalah pada proses pickling section dan tin plating section. Penyebab defect dent yaitu pada mesin yaitu pada proses exit section dan exit loop tower. Rekomendasi perbaikan adalah dengan memperbaiki proses pemeriksaan dan perawatan rutin. Langkah lainnya adalah melakukan sistem monitoring menggunakan sensor sehingga dapat menampilkan informasi secara real-time. Sistem ini mempermudah tindak lanjut pemeliharaan sesuai dengan permasalahan yang terdeteksi. Universitas Harapan Medan 2023-05-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/694 10.35447/jitekh.v11i1.694 JITEKH; Vol 11 No 1 (2023): Maret 2023; 10-16 JiTEKH; Vol. 11 No. 1 (2023): Maret 2023; 10-16 2549-6646 2338-5677 10.35447/jitekh.v11i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/694/519 Copyright (c) 2023 Ira Wahyuli, Ardita Maharani, Ahmad Nalhadi, Supriyadi Supriyadi

oai:ojs2.jurnal.harapan.ac.id:article/695 2023-05-20T15:37:52Z Jitekh:tes driver

Sistem Pendukung Keputusan Pemilihan Genteng Menggunakan Metode Analytical Hierarchy Process Prasetyo, Dika Sucipto, Sucipto Nugroho, Arie SPK AHP Genteng Penelitian ini berfokus pada pemilihan genteng berdasarkan kriteria setiap orang. Banyak jenis genteng yang telah dipasarkan , tetapi banyaknya kriteria dan kurangnya pengetahuan dan informasi genteng. Pembeli harus lebih teliti dan cermat untuk memilih genteng yang sesuai dengan kebutuhan. Namun membutuhkan pertimbangan dalam membuat suatu keputusan mengenai pemilihan genteng. Sehingga dibutuhkan sebuah sistem yang bisa membantu untuk memberikan rekomendasi pemilihan genteng. Sistem pendukung keputusan (SPK) menggunakan metode Analytical Hierarchy Process (AHP). Laporan ini mendeskripsikan tentang sistem rekomendasi pemilihan genteng menggunakan 5 kriteria, seperti berat,harga,jarak atau reng, tebal dan lebar. Masing-masing diberikan nilai atau bobot sesuai dengan tabel pembobotan Thomas L.Saaty. kemudian menghitung nilai konsistensi menggunakan metode Analytical Hierarchy Process. Jika nilai yang dihasilkan konsisten maka dapat dijadikan acuan pemberian peringkat genteng. Pengujian sistem ini dengan cara membandingkan perhitungan excel dengan sistem, yang mana memprioritaskan harga, berat dan jarak atau reng dengan tujuan pembeli memiliki pilihan lebih banyak yang sesuai dengan kriteria masing-masing. Universitas Harapan Medan 2023-05-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/695 10.35447/jitekh.v11i1.695 JITEKH; Vol 11 No 1 (2023): Maret 2023; 24-30 JiTEKH; Vol. 11 No. 1 (2023): Maret 2023; 24-30 2549-6646 2338-5677 10.35447/jitekh.v11i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/695/520 Copyright (c) 2023 Dika Prasetyo, Sucipto Sucipto, Arie Nugroho

oai:ojs2.jurnal.harapan.ac.id:article/701 2023-05-20T15:37:52Z Jitekh:tes driver

Analisa Respon Mekanis Bahan Dashboard Mobil dengan Metode Pengujian Tarik (Tensile Test) Siregar, Doli Tryono Irwan, Ade Ritonga, Din Aswan Amran Car dashboard Tensile Test Tensile Stress Tensile Modulus of elasticity Dashboard is a panel on the front of the car interior, here usually there are several facilities, such as instrumentation panels, drawers, radio / tape, and air conditioning. The dashboard also has many functions as a place for instrument panels and warning signal gauges and also has an audio system, ventilation air-conditioning head and many others. And here the researcher wants to know the strength on the car dashboard by using the tensile test method. Tensile testing is one such test. The method used in this research is a tensile test method using a UTM machine. Material testing machine with a length of 100 mm using ASTM E8. The results of the study have 5 specimens for the first specimen on the car dashboard having a tensile stress with a value of 33,95 Mpa strain with a value of 0,02 And the modulus of elasticity with a value of 1.697,5 Mpa the second specimen on the car dashboard has a tensile stress with a value of 35,98 Mpa strain with a value of 0,03 And the modulus of elasticity with a value of 1.199,33 Mpa The third specimen on the dashboard of the car has a tensile stress with a value of 43,55 Mpa strain with a value of 0,01 And the modulus of elasticity with a value of 4.345 Mpa the fourth specimen on the car dashboard has a tensile stress with a value of 33,95 Mpa strain with a value of 0,01 And the modulus of elasticity with a value of 3.395 Mpa the fifth specimen on the car dashboard has a tensile stress with a value of 42,77 Mpa  strain with a value of 0,02 and modulus of elasticity with a value of 2.138,5 Mpa Universitas Harapan Medan 2023-05-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/701 10.35447/jitekh.v11i1.701 JITEKH; Vol 11 No 1 (2023): Maret 2023; 17-23 JiTEKH; Vol. 11 No. 1 (2023): Maret 2023; 17-23 2549-6646 2338-5677 10.35447/jitekh.v11i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/701/521 Copyright (c) 2023 Doli Tryono Siregar, Ade Irwan, Din Aswan Amran Ritonga

oai:ojs2.jurnal.harapan.ac.id:article/702 2023-05-20T15:37:52Z Jitekh:tes driver

Analisa Respon Mekanis Bahan Fiber Plastik Jok dengan Metode Uji Tarik (Tensile Test) Rullah, Anggri Abdi Irwan, Ade Nasution, Fadly Ahmad Kurniawan Plastic Fiber Upholstery Tensile Test Tensile Stress Tensile Strain Modulus of Elasticity Plastic Fiber Upholstery Is a component that plays an important role for comfort and safety for motorcycle riders, the shape of the seat plastic fiber is also different according to the needs of motorcycles both in terms of type and type. Functions of Plastic Fiber Upholstery seats to support weight and shock absorbers. And here the researcher wants to know the strength of the Plastic Fiber Upholstery using the Tensile test method. Tensile testing is one such test. The method used in this research is a tensile test method using a UTM machine. Material testing machine with a length of 104 mm using ASTM E8. The results of this study have 5 specimens for the first specimen on Fiber Plastic Upholstery has a tensile stress with a value of 33.50 MPa, strain with a value of 0.03. And the modulus of elasticity with a value of 1,176.6 MPa. The second specimen on Plastic Fiber Upholstery had a tensile stress of 30.55 MPa, a strain with a value of 0.02. And the modulus of elasticity with a value of 1.527.5 MPa. The third specimen on Plastic Fiber Upholstery has a tensile stress of 51.60 MPa, a strain of 0.06. And the modulus of elasticity with a value of 860 MPa. The fourth specimen on Plastic Fiber Upholstery has a tensile stress of 19.01 MPa, a strain of 0.02. And the modulus of elasticity with a value of 950.5 MPa. The fifth specimen on Fiber Plastic Upholstery has a tensile stress of 44.81 MPa, a strain of 0.03. And the modulus of elasticity with a value of 1493.6 MPa. Universitas Harapan Medan 2023-05-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/702 10.35447/jitekh.v11i1.702 JITEKH; Vol 11 No 1 (2023): Maret 2023; 31-40 JiTEKH; Vol. 11 No. 1 (2023): Maret 2023; 31-40 2549-6646 2338-5677 10.35447/jitekh.v11i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/702/522 Copyright (c) 2023 Anggri Abdi Rullah, Ade Irwan, Fadly Ahmad Kurniawan Nasution

oai:ojs2.jurnal.harapan.ac.id:article/703 2023-05-20T15:37:52Z Jitekh:tes driver

Optimasi Keamanan Hasil Enkripsi Algoritma Playfair Cipher ke dalam Kode Morse Prasetyo, Eko Lubis, Yessi Fitri Annisah Optimizing Cryptography Playfair Cipher Reverse Morse Code Improving the security of cryptosystems is a challenge that attracts many researchers to propose and develop new cryptosystems to achieve cryptographic goals. In addition to implementing new cryptographic algorithms, the way that can be done is to modify, combine algorithms or even add other methods to improve existing cryptographic algorithms. Playfair Cipher is a cryptographic algorithm that has long been known and is still widely used and studied today. To optimize or strengthen the confidentiality of data from encryption (ciphertext) using the Playfair Cipher algorithm, research will be carried out by adding reverse operations and conversion into Morse code. This research produces a desktop-based application that can be used in optimizing the security of the encryption results of the Playfair Cipher cryptographic algorithm. From the test results on 10 data samples, it shows that the frequency of characters from the results of reverse and encryption (ciphertext) changes in value constantly along with the addition of the number of characters in the test text. However, after being converted into Morse code, it does not show any pattern of connection between the results of the Morse code conversion and plaintext. This proves that the encryption results after being converted into Morse code can increase (optimize) the security of the Playfair Cipher algorithm, because it will produce more random text and will not show patterns of connection between the results of the conversion into Morse code and the original text (plaintext). Universitas Harapan Medan 2023-05-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/703 10.35447/jitekh.v11i1.703 JITEKH; Vol 11 No 1 (2023): Maret 2023; 41-50 JiTEKH; Vol. 11 No. 1 (2023): Maret 2023; 41-50 2549-6646 2338-5677 10.35447/jitekh.v11i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/703/523 Copyright (c) 2023 Eko Prasetyo, Yessi Fitri Annisah Lubis

oai:ojs2.jurnal.harapan.ac.id:article/705 2023-05-29T12:19:45Z Jitekh:tes driver

Implementasi Internet Protocol Versi 6 Pada Jaringan VoIP Berbasis Session Initiation Protocol Arief, Mhd. Tri Faisal, Ilham Handoko, Divi IP voIP Configuration Performa VoIP Topology Analyzing the difference in performance values generated by the IPv4 protocol and the IPv6 protocol VoIP services on a WAN network using a bandwidth of 128 Kbps. Session Initiation Protocol (SIP) is one of the protocols commonly used in Voice Over Internet Protocol (VoIP) telecommunications. SIP is a signaling protocol developed by the Internet Engineering Task Force (IETF) under the label RFC3261. In a telephone call using IPv4 and IPv6 with a distance of 3 meters concluded that IPv6 is better with a bandwidth of 55.1 Kb and Packet Traffic of 140 compared to IPv4 with a result of 35.1 Kbps and Packet Traffic of 150. Computer network topology is a network arrangement in which each part is interconnected with each other through physical media such as cables and optical fiber. Universitas Harapan Medan 2023-05-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/705 10.35447/jitekh.v11i1.705 JITEKH; Vol 11 No 1 (2023): Maret 2023; 51-56 JiTEKH; Vol. 11 No. 1 (2023): Maret 2023; 51-56 2549-6646 2338-5677 10.35447/jitekh.v11i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/705/524 Copyright (c) 2023 Mhd. Tri Arief, Ilham Faisal, Divi Handoko

oai:ojs2.jurnal.harapan.ac.id:article/725 2023-06-22T05:17:42Z Jitekh:tes driver

ANALISA PENGUJIAN KEKERASAN MATERIAL BAJA KARBONRENDAH DAN BESI MENGGUNAKAN METODE UJI BRINNEL Junaidi, Junaidi Irawan, Ade Low carbon steel iron brinnel hardness test Steel is iron with a carbon content of less than 2%. Steel can be formed into various shapes according to needs. Broadly speaking there are 2 types of steel, namely carbon steel and alloy steel. Carbon steel is divided into low carbon steel, medium carbon steel and high carbon steel. The classification of steel is significantly influenced by composition, structure and use. ST 37 iron is classified as low carbon steel, which has less carbon content according to specifications of 0.16%. This steel is also often used for machine constructions that rub against each other such as gears, shafts. Steel has mechanical properties, one of which is hardness. To determine the hardness value, the brinnel test method, the Vickers method and the Rockwell method are used. In this study, the brinnel method will be used, where the materials to be tested are low carbon steel and iron. This test can see the material hardness value of low carbon steel and iron so that it can be applied according to its function. Universitas Harapan Medan 2019-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/725 10.35447/jitekh.v7i2.725 JITEKH; Vol 7 No 2 (2019): September 2019; 57-61 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 57-61 2549-6646 2338-5677 10.35447/jitekh.v7i02 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/725/525 Copyright (c) 2019 Junaidi Junaidi, Ade Irawan

oai:ojs2.jurnal.harapan.ac.id:article/726 2025-08-14T08:39:51Z Jitekh:tes driver

PERBANDINGAN PERFORMA MOTOR BAKAR DENGAN MENGGUNAKAN GAS LPG Junaidi, Junaidi Ritonga, Din Aswan Amran LPG gasoline performance emissions conversion Technological developments with the number and growth of motorized vehicles and the consumption of fuel oil in Indonesia have caused problems for the environment and fuel supply. This problem is even more complicated because the subsidy for its procurement is already very burdensome to the State Revenue and Expenditure Budget. Therefore, comprehensive efforts must continue to be made to find the best solution. This paper discusses the results of research aimed at reducing emissions and reducing motorcycle fuel consumption, by converting the use of gasoline to LPG which is commonly used for cooking. Tests were carried out in the laboratory using a chassis dynamometer to compare torque, power, fuel consumption levels and operating costs, on a carburetor motorcycle engine using gasoline and LPG, either without changing the ignition conditions or by changing the ignition conditions. From this study it was found that LPG fuel has good performance and can be used directly without changing the ignition conditions. However, the performance will be better if the ignition conditions are adjusted. The best level of LPG consumption is 86 km/kg or Rp.58/km, while gasoline is 66 km/l or Rp.98/km. Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/726 10.35447/jitekh.v8i2.726 JITEKH; Vol 8 No 2 (2020): September 2020; 92-99 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 92-99 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/726/526 Copyright (c) 2020 Junaidi Junaidi, Din Aswan Amran Ritonga

oai:ojs2.jurnal.harapan.ac.id:article/729 2023-06-22T07:54:45Z Jitekh:tes driver

Perancangan Mesin Produksi Pelet Terapung Ritonga, Din Aswan Amran Sarjana, Sarjana Sandi, Rahmad Dwi Fish Feed Cutting Knife Pellet Molding Machine This design is based on the results of observations and literature studies, precisely for fish farming feed. Fish feed is always there, but has a relatively expensive price. Especially as a fish farmer, must have alternatives to develop his business. Because there is no use of a floating pellet molding machine, the machine was designed as a solution. Usually this machine is only used in pellet molding from fine bran and frementation materials that have been specifically designed to make animal feed. This design is carried out to make pellet printers from bran and calculate the production capacity. The design results use a 1450 rpm electric motor, 1:50 gear box, conveyor tank with a length of 220 mm, die with a size of 2 and 4 mm and a thickness of 8 mm, a cutting knife with a thickness of 1 mm, a length of 35 mm with a speed of 9 rpm and produces a capacity of 18 kg / hour. Universitas Harapan Medan 2022-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/729 10.35447/jitekh.v10i2.729 JITEKH; Vol 10 No 2 (2022): September 2022; 91-94 JiTEKH; Vol. 10 No. 2 (2022): September 2022; 91-94 2549-6646 2338-5677 10.35447/jitekh.v10i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/729/527 Copyright (c) 2022 Din Aswan Amran Ritonga, Sarjana Sarjana, Rahmad Dwi Sandi

oai:ojs2.jurnal.harapan.ac.id:article/730 2025-08-14T08:38:52Z Jitekh:tes driver

Desain Nozle Sistem Pengisi Botol Otomatis Junaidi, Junaidi Sarjana, Sarjana machine automatic filling bottle nozzle Machinery is equipment that is absolutely necessary for companies in carrying out the production process. The bottle filling machine is one of the automatic machines that functions to fill liquid products into packaging. In the development of automation systems, of course, here we need a general control device (Universal) that does not require special power in operation. This research aims to get the time needed to fill 250 and 500 ml bottles, design nozzles for bottle filling and make plc program ledder on bottle filling machine. The system design on the Bottle Filling machine so that it can fill and lock the lid automatically by using a controller in the form of a PLC as a full controller of the system. In making ladder diagrams using the 7 gate logic method (gate logic). In wiring diagrams that contain the arrangement of the series of components used, and are intended to facilitate maintenance and repair of electrical systems, wiring diagrams can also speed up fault finding and shorten maintenance time. The structure of the programming algorithm contains the sequence of work processes on each component contained in the machine. Universitas Harapan Medan 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/730 10.35447/jitekh.v10i1.730 JITEKH; Vol 10 No 1 (2022): Maret 2022; 52-57 JiTEKH; Vol. 10 No. 1 (2022): Maret 2022; 52-57 2549-6646 2338-5677 10.35447/jitekh.v10i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/730/528 Copyright (c) 2022 Junaidi Junaidi, Sarjana Sarjana

oai:ojs2.jurnal.harapan.ac.id:article/731 2023-06-22T08:51:49Z Jitekh:tes driver

ANALISA EMISI GAS BUANG KENDERAAN RINGAN YANG DIUJI DI DINAS PERHUBUNGAN KOTA MEDAN Junaidi, Junaidi Ritonga, Din Aswan Amran Sitepu, Maulana Siddiq Biodiesel CPO Emission Fire Tube Boiler The use of biodiesel in boilers has great benefits because it can reduce exhaust emissions. The purpose of this study is to test the quality of diesel and biodiesel raw materials as fuel from boilers, analyze the concentration of polluting gases (NOx, CO2, SO2) from the combustion of biodiesel and diesel oil experimentally. The combustion system in boilers tends to be simpler than compression ignition as done in diesel engines. This research was conducted experimentally on a fire tube boiler, with a heat input rate of 60,000 kCal / hour and a pressure of 3 bar using biodiesel made from CPO (crude palm oil) as fuel. The mixture varies on 0, 5, 10, 15, 20 and 25% biodiesel in a mixture with biodiesel (B0, B5, B10, B15, B20 and B25). This research was conducted experimentally by testing exhaust gas emissions produced from exhaust gas chimneys which are expected to produce low exhaust emissions and are environmentally friendly. The results showed that the use of biodiesel reduces gas emissions by increasing the value of biodiesel in the mixture. The results showed that the lowest exhaust gas emission was around 4.142% (NOx); 12.50% (SO2) and 7.9% (CO2) are contained in a mixture of 25% biodiesel in fuel (B25). Universitas Harapan Medan 2019-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/731 10.35447/jitekh.v7i2.731 JITEKH; Vol 7 No 2 (2019): September 2019; 62-67 JiTEKH; Vol. 7 No. 2 (2019): September 2019; 62-67 2549-6646 2338-5677 10.35447/jitekh.v7i02 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/731/530 Copyright (c) 2019 Junaidi Junaidi, Din Aswan Amran Ritonga, Maulana Siddiq Sitepu

oai:ojs2.jurnal.harapan.ac.id:article/733 2025-08-14T08:39:51Z Jitekh:tes driver

ANALISA SIFAT MEKANIK KOMPOSIT UJI BENDING Junaidi, Junaidi Ritonga, Din Aswan Amran Coconut Coir Fiber Polyester Alkali Bending Test In this study, the material used was coconut husk fiber with a straight fiber orientation direction with different volume fractions with alkali treatment (NaOH) for two hours and without treatment using Polyester BQTN 157 as the matrix. Manufacture by printing in printed, bending testing carried out with reference to ASTM D 6110 standard. The purpose of this study was to determine the optimal bending strength of coconut coir fiber composites at volume fractions 0% fiber 100% resin, 10% fiber 80% resin, 20% fiber 80% resin, 30% fiber 70% resin, 40% fiber 60% resin, 50% resin 50% fiber, 60% resin 40% fiber and 70% fiber 30% resin with alkaline treatment (NaOH) for two hours and without treatment and find out the fracture results in specimens that have optimal prices from bending testing. The results of composite testing of coconut coir fiber without treatment with volume fraction variations with bending testing obtained the average bending elasticity modulus at Vf 60% resin 40% fiber with a value of 619047.619 MPa. And the test results with alkali treatment (NaOH) obtained the average bending elasticity modulus at Vf 70% resin 30% fiber with a value of 4893.410928 MPa. The observation of fault results obtained the type of broken fiber fault Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/733 10.35447/jitekh.v8i2.733 JITEKH; Vol 8 No 2 (2020): September 2020; 100-104 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 100-104 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/733/531 Copyright (c) 2020 Junaidi Junaidi, Din Aswan Amran Ritonga

oai:ojs2.jurnal.harapan.ac.id:article/734 2025-08-14T08:39:51Z Jitekh:tes driver

ANALISA KEGAGALAN PIPA ASTM A179 PADA RUANG BAKAR BOILER Nasution, Fadly Ahmad Kurniawan Irawan, Ade ASTM A179 PIPE Failure Burn Boiler Brinell Test A steam power plant or better known as a boiler or steam boiler, the steam boiler itself has the main components, namely the pipe used to circulate water, the pipe itself is made of metal material, the operation of the boiler, the pipe in the boiler combustion chamber experiences a change in temperature which resulted in a deformation that resulted in a change in the mechanical properties of the pipe material. This chapter will explain the steps taken in carrying out several tests with the aim of knowing the hardness of the boiler pipe material. The tests carried out are testing the microstructure, and the hardness value, which will be explained in the flow chart in the sub-chapter below. The hardness decreased, at a load of 1500 kgf. The hardness value decreased not too significantly, from 132.1667 to 91.81667 BHN. That the decrease in hardness is only 0.43% Obtained the standard average hardness value in the boiler with each brinell test, amounting to 132.1667 BHN Obtained the average hardness value which is affected by the temperature of the boiler combustion chamber with each brinell test, amounting to 91.71667 HRB, Based on the value of the hardness test results compared to that after heating experienced a decrease in hardness in the brinell test by 0.43%. Universitas Harapan Medan 2020-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/734 10.35447/jitekh.v8i2.734 JITEKH; Vol 8 No 2 (2020): September 2020; 105-108 JiTEKH; Vol. 8 No. 2 (2020): September 2020; 105-108 2549-6646 2338-5677 10.35447/jitekh.v8i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/734/532 Copyright (c) 2020 Fadly Ahmad Kurniawan Nasution, Ade Irawan

oai:ojs2.jurnal.harapan.ac.id:article/764 2023-08-30T00:58:39Z Jitekh:tes driver

Mengoptimalkan Pencegahan Serangan Brute Force pada Linux melalui Penerapan Metode Aplikasi IDS Snort Hidayat, Dody Ramli, Ramli IDS Snort Linux Bruteforce Network security system on the server is an important factor to ensure the stability, integrity and validity of data. Implementation of Snort-based Intrusion Detection System can save software procurement costs because it is free and reliable enough to detect security attacks. Snort-based IDS system can be implemented on Linux operating system. An attack may or may not be detected by Snort IDS depending on the presence or absence of appropriate rules. The testing process used is a port scanning attack technique, brute force attack technique, and hacker IP address blocking. The port scanning attack technique can generate important information about a network and can detect open ports, including port 22, which is the secure shell. The brute force attack technique can generate illegal username and password combinations on the server system. IDS snort can detect incoming attacks on the server system, then IDS snort can detect the IP address that is trying to hack the server system. Ensure data on the server system is secure by allowing the administrator to track any hacker activity. Universitas Harapan Medan 2023-08-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/764 10.35447/jitekh.v11i2.764 JITEKH; Vol 11 No 2 (2023): September 2023; 57-61 JiTEKH; Vol. 11 No. 2 (2023): September 2023; 57-61 2549-6646 2338-5677 10.35447/jitekh.v11i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/764/553 Copyright (c) 2023 Dody Hidayat; Ramli Ramli

oai:ojs2.jurnal.harapan.ac.id:article/774 2023-10-04T03:53:54Z Jitekh:tes driver

Model Klasifikasi Data Mining Sebagai Pertimbangan Pemilihan Peminatan Departemen untuk On Job Training (OJT) di Hotel Purnomo, Dedi Joko Asshofi, Izza Ulumuddin Ahmad Dima, Cindy Citya Pranatha, Prima Setia Judha Data Mining Classification Model On the Job Training Determining the choice of the department in the implementation of On Job Training (OJT) for students is always based on the needs and requests of the hotel or manually dividing the number of students who will carry out Job Training with the operational department in the hotel. Selection is often not in accordance with the potential of student expertise that has been achieved academically. Student academic data is often only archived, there is no utilization and efficient processing to obtain patterns, or habits that can be found as material for analysis in higher education institutions to improve the quality of students and campuses. To overcome the existing problems, the Udinus hospitality management study program utilizes student academic data to help determine department choices in the implementation of job training. The method used in this study is uses the Data Mining Classification Algorithm, namely Algorithm C4.5. The purpose of this research is to find out that the classification model created using the C4.5 Algorithm decision tree model can assist Study Programs in considering the selection of majors for student Job Training. This research is included in experimental research that uses data from students by carrying out the stages of classification methods such as literature review, data collection, data selection, data processing, and data testing. The result achieved is the application of the decision tree algorithm rule C4.5 by using data on student scores that can be used to assist in determining the selection of majors in the implementation of Job Training. The test results using the decision tree C4.5 algorithm obtained good results with an accuracy of up to 94.44% with a ratio of 80% training data and 20% test data, the ratio of the number of training data can affect the accuracy of values ​​in each experiment. Universitas Harapan Medan 2023-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/774 10.35447/jitekh.v11i2.774 JITEKH; Vol 11 No 2 (2023): September 2023; 114-126 JiTEKH; Vol. 11 No. 2 (2023): September 2023; 114-126 2549-6646 2338-5677 10.35447/jitekh.v11i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/774/570 Copyright (c) 2023 dedi joko purnomo

oai:ojs2.jurnal.harapan.ac.id:article/780 2023-09-29T08:02:20Z Jitekh:tes driver

Signifikansi Pengaruh Akses Teknologi Informasi terhadap Indeks Pembangunan Manusia di Indonesia Jatmiko, Andriyan Rizki Hendrawan, Nofrian Deny Arief, Rizza Muhammad Putra, Firnanda Al Islama Achyunda Karyudi, Mochammad Daffa Putra K-Means K-Medoids Clustering Information Technology Human Development Index Human Development Index is an indicator of the progress of a country, Information Technology is an important supporter to measure the Human Development Index. This research can provide an overview to measure the progress of a country in terms of access to Information Technology. This study processed secondary data provided by the Central Statistics Agency from 2017-2019. Using K-Means and K-Medoids clustering methods. K-Means is a popular non-hierarchical grouping method that groups objects by distance to a central point, aiming to maximize similarity within groups. K-Medoids is a powerful algorithm that handles outliers using techniques such as CLARA and PAM. In 2017 with an average of 0, Gorontalo 294611827 was a low cluster while in 2018 and 2019 Gorontalo entered a medium cluster with an average of 0.349570215 and 0.394531648. Similar to Central Sulawesi, in 2017 with an average of 0.275848883 Central Sulawesi was included in the low cluster while in 2018 and 2019 Central Sulawesi entered the medium cluster with an average of 0.291938731 and 0.334276807 From this result, it can be ascertained, by increasing knowledge in Information Technology, the HDI in an area can increase as well. Universitas Harapan Medan 2023-09-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/780 10.35447/jitekh.v11i2.780 JITEKH; Vol 11 No 2 (2023): September 2023; 83-94 JiTEKH; Vol. 11 No. 2 (2023): September 2023; 83-94 2549-6646 2338-5677 10.35447/jitekh.v11i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/780/567 Copyright (c) 2023 Andriyan Rizki Jatmiko, Nofrian Deny Hendrawan, Rizza Muhammad Arief, Firnanda Al Islama Achyunda Putra, Mochammad Daffa Putra Karyudi

oai:ojs2.jurnal.harapan.ac.id:article/783 2023-09-30T17:09:02Z Jitekh:tes driver

Pemodelan Sistem Persediaan Menggunakan Pendekatan Sistem Dinamik Zulfikar, Tubagus Evan Supriyadi, Supriyadi Rosihin, Rosihin Nalhadi, Ahmad Peramalan Persediaan Sistem Dinamik Moving Average Kondisi bisnis yang tidak menentu dapat berdampak pada permasalahan terkait dengan permintaan dan persediaan. Tingkat persediaan yang kurang baik berdampak pada permasalahan kekurangan maupun persediaan. Penelitian ini bertujuan mensimulasikan tingkat persediaan suatu distributor berdasarkan estimasi tingkat permintaan yang terjadi. Penelitian ini menggunakan model simulasi program dinamik dengan bantuan tools Powersim 10. Hasil pemodelan dinyatakan valid apabila titik validasi AME kurang dari 30% dan dinyatakan menyerupai bila titik validasi AME kurang dari 10% Hasil simulasi menunjukkan pemodelan pada stok gudang mendapatkan nilai validasi 3,37 dan tingkat permintaan sebesar 2,02 yang yang menyatakan model data dikatakan valid. Hasil pengujian menunjukkan hasil simulasi memberikan sistem prediksi lebih baik dibandingkan dengan menggunakan metode moving average. Universitas Harapan Medan 2023-09-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/783 10.35447/jitekh.v11i2.783 JITEKH; Vol 11 No 2 (2023): September 2023; 62-69 JiTEKH; Vol. 11 No. 2 (2023): September 2023; 62-69 2549-6646 2338-5677 10.35447/jitekh.v11i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/783/564 Copyright (c) 2023 Tubagus Evan Zulfikar, Supriyadi Supriyadi, Rosihin Rosihin, Ahmad Nalhadi

oai:ojs2.jurnal.harapan.ac.id:article/795 2023-09-30T14:30:24Z Jitekh:tes driver

Analisis Pengaplikasian Linear Congruential Generator (LCG) pada mode Cipher Block Chaining (CBC) Advanced Encryption Standard (AES) Yeni, Manovri Siregar, Rosyidah Tommy, Tommy LCG CBC AES Chi-Square Entropy The use of the Linear Congruential Generator (LCG) as a part of the Cipher Block Chaining (CBC) method in the Advanced Encryption Standard (AES) has been a focus of international research to enhance data security. In this experiment, chi-square analysis and entropy analysis are employed to evaluate the effectiveness of applying LCG to CBC-AES compared to conventional CBC-AES. The chi-square analysis indicates the highest improvement of 15.1098 and the lowest decrease of -10.4293. This improvement reflects an enhancement in the probability distribution of encrypted data, approaching a random distribution, and indicates a reduced likelihood of statistical attacks on the encrypted data. Meanwhile, the entropy analysis shows the highest increase of 0.3562 and the lowest decrease of -0.0942. This increase suggests that data encrypted using this method becomes more difficult to predict or analyze by unauthorized parties, increasing the unpredictability of the encrypted data. The research results demonstrate a significant improvement in data security, with a 3.65% increase in chi-square analysis, indicating a more even probability distribution of data, and a 0.066% increase in entropy analysis, indicating higher unpredictability in encrypted data. These findings are promising and indicate the potential of LCG in enhancing cryptographic system security, although further research is needed for validation and optimization of this method in the context of information security. Universitas Harapan Medan 2023-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/795 10.35447/jitekh.v11i2.795 JITEKH; Vol 11 No 2 (2023): September 2023; 105-113 JiTEKH; Vol. 11 No. 2 (2023): September 2023; 105-113 2549-6646 2338-5677 10.35447/jitekh.v11i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/795/569 Copyright (c) 2023 Rosyidah Siregar, Manovri Yeni, Tommy Tommy

oai:ojs2.jurnal.harapan.ac.id:article/799 2023-09-29T08:08:23Z Jitekh:tes driver

Sistem Pakar Diagnosis Awal Tingkat Stres pada Korban Bullying dengan Metode Forward Chaining Berbasis Web Safira, Sheila Hasugian, Abdul Halim Santoso, Heri Bullying behavior Stress Psychological Forward chaining Abstrak−Tindakan melecehkan orang lain melalui penggunaan teknologi informasi dan komunikasi seperti media sosial, ponsel, dan video dikenal sebagai bullying. Bullying adalah perilaku agresif. Bullying dapat berdampak kepada gangguan psikologis seperti stres. Dalam ilmu psikologi, mengukur tingkat stres seseorang merupakan salah satu cara penerapan sistem pakar. Penelitian ini menggunakan metode  forward chaining. Forward chaining adalah metode yang menarik kesimpulan dari data atau fakta. Forward chaining dimulai dengan informasi yang sudah ada dan menggunakan aturan untuk membuat kesimpulan untuk mendapatkan lebih banyak informasi sampai tujuan tercapai.data dikumpulkan dengan teknik kuesioner yang menghasilkan 40 poin aspek penilaian. Hasil penelitian menunjukkan perilaku bullying memiliki hubungan signifikan pada tingkst stres seseorang yang dapat mempengaruhi psikologis. Semakin berat gejala yg didapat semakin tinggi tingkat stress yang dialami. Kata Kunci: Perilaku bullying, Stress, Psikologis,  Forward chaining Abstract− The act of harassing other people through the use of information and communication technologies such as social media, cell phones and videos is known as bullying. Bullying is aggressive behavior. Bullying can have an impact on psychological disorders such as stress. In psychology, measuring a person's stress level is one way of implementing an expert system. This research uses the forward chaining method. Forward chaining is a method that draws conclusions from data or facts. Forward chaining starts with existing information and uses rules to make conclusions to get more information until the goal is achieved. Data is collected using a questionnaire technique which produces 40 points of assessment aspects. The results showed that bullying behavior has a significant relationship to a person's stress level which can affect psychologically. The more severe the symptoms are, the higher the level of stress experienced. Keywords: Bullying behavior, Stress, Psychological, Forward chaining Universitas Harapan Medan 2023-09-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/799 10.35447/jitekh.v11i2.799 JITEKH; Vol 11 No 2 (2023): September 2023; 95-104 JiTEKH; Vol. 11 No. 2 (2023): September 2023; 95-104 2549-6646 2338-5677 10.35447/jitekh.v11i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/799/568 Copyright (c) 2023 Sheila Safira, Abdul Halim Hasugian, Heri Santoso

oai:ojs2.jurnal.harapan.ac.id:article/803 2023-09-29T08:03:46Z Jitekh:tes driver

Analisis dan Uji Korelasi Tingkat Kebisingan Lalu Lintas: Ruas Jalan Bundaran Waru Kota Surabaya Ali, Mohammad Maghfur Majid, Dian Kebisingan Lalu Lintas Pengendalian Bising Abstract−This study aims to analyze noise levels and provide recommendations for noise control. Noise tests were conducted using a sound level meter, in accordance with the SNI 8427-2017 standard, at three sampling points. Data analysis covered vehicle volume (in emp), average noise levels (Ls), correlation tests, and control recommendations. Data processing was carried out using Microsoft Excel, SPSS (25), and Sketchup software. The results showed that the highest vehicle volume reached 2,090 vehicles per hour with a composition percentage of motorcycles (MC) at 69.3%, light vehicles (LV) at 56.2%, and heavy vehicles (HV) at 9.4%, in line with the emp values of MKJI (1997). The noise level (Ls) reached a fairly high level, hitting 72.5 dB. There is a moderate to very strong relationship between vehicle volume and noise levels (with correlation values ranging from 0.450 to 0.874). To control the noise, it is suggested to add vegetation barriers such as Acacia trees and Sebe shrubs, which can enhance the effectiveness of existing barriers in reducing noise to below the quality standard as per the Minister of Environment Regulation No. 48 of 1996 for residential and commercial areas Universitas Harapan Medan 2023-09-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/803 10.35447/jitekh.v11i2.803 JITEKH; Vol 11 No 2 (2023): September 2023; 70-82 JiTEKH; Vol. 11 No. 2 (2023): September 2023; 70-82 2549-6646 2338-5677 10.35447/jitekh.v11i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/803/566 Copyright (c) 2023 Mohammad Maghfur Ali, Dian Majid

oai:ojs2.jurnal.harapan.ac.id:article/816 2023-10-04T03:59:37Z Jitekh:tes driver

Kajian Parameter 3D Printing Terhadap Ketangguhan Material dan Kualitas Permukaan Menggunakan Metode Taguchi Arifin, Muhammad 3D Printing Pla Filament Material Durability Surface Quality Taguchi Method 3D Printing Fused Deposition Modeling (FDM) is the printing of thermoplastic material layer by layer to form a three-dimensional product in which the adhesion between layers must be well controlled to obtain high mechanical performance and product integrity. The research aims to investigate the influence of the nozzle temperature, table temperature, and filling model on the mechanical strength and surface quality of the product. The PLA filament used in this study, the experimental data capture design using the Taguchi L9 with factor and level (2)4 two nozzle temperature parameters, two model infill parameters, two print speed parameters, and printer table temperature. The durability and quality of the product are the focus of this compilation, and data analysis using robust statistical methods of S/N Ratio design. The relationship of rigidity to mechanical force is also discussed. The temperature of the nozzle becomes a major influence on the firmness of the product for the surface hardness which is a big influence not of the temperature but of the model of the infill Universitas Harapan Medan 2023-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/816 10.35447/jitekh.v11i2.816 JITEKH; Vol 11 No 2 (2023): September 2023; 127-137 JiTEKH; Vol. 11 No. 2 (2023): September 2023; 127-137 2549-6646 2338-5677 10.35447/jitekh.v11i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/816/571 Copyright (c) 2023 muhammad ipin arifin

oai:ojs2.jurnal.harapan.ac.id:article/829 2024-03-27T09:11:08Z Jitekh:tes driver

Analisis Karotenoid dan Glukosa pada Produksi Serbuk Jahe Merah (Zingiber officinale Rosc. var Rubrum) terhadap Variasi Suhu dan Kadar Gula Nuramalia, Rachma Nisa Sari, Dessy Agustina crystallization evaporation ginger extract sugar cube This study aims to analyze total carotenoids and total sugar in red ginger powder products by involving variations in sugar content and process temperature. The process of making red ginger powder utilizes an evaporation process with rock sugar as a crystallization agent to help the crystallization process. The raw material is red ginger as the main material, both fresh and pulp. Then, the variables during the study were operating temperature (80 and 90oC) and sugar content (60 and 100%). The parameters analyzed were total carotenoids and total sugar in the red ginger powder samples. The results of the total carotenoid analysis showed that the treatment of red ginger with a temperature of 90oC and 60% rock sugar content provided optimum conditions both in terms of fresh raw materials and pulp. This result was also achieved in red ginger powder and ready-to-consume beverage products, which ranged from 11.70 to 16.23%. Furthermore, the best total glucose analysis results were at the same temperature as the highest carotenoid values. Meanwhile, the highest sugar content (100%) was able to provide higher total glucose than the 60% contribution of rock sugar in both raw material conditions and the form of processed red ginger products. Universitas Harapan Medan 2024-03-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/829 10.35447/jitekh.v12i1.829 JITEKH; Vol 12 No 1 (2024): March 2024; 1-7 JiTEKH; Vol. 12 No. 1 (2024): March 2024; 1-7 2549-6646 2338-5677 10.35447/jitekh.v12i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/829/613 Copyright (c) 2024 Rachma Nisa Nuramalia, Dessy Agustina Sari

oai:ojs2.jurnal.harapan.ac.id:article/848 2024-05-02T08:15:33Z Jitekh:tes driver

Implementasi Metode Forward Chaining pada Aplikasi Cyber Counseling Harahap, Febri Alfiani Putri Damayanti, Fera Lubis, Yessi Fitri Annisah Khairunnisa, Khairunnisa Syahputri, Nenna Irsa Sundari, Siti SMP Negeri 36 Medan Guidance Counseling Teacher Forward Chaining Cyber Counseling SMP Negeri 36 Medan has students with various backgrounds. Guidance and counseling is a support service provided by schools to students who have problems that can be resolved. The results of observations and interviews that have been conducted on counseling guidance teachers of SMP Negeri 36 Medan stated that they still find it difficult to deal with the problems faced by students. The method used in this study is the forward chaining method. The implementation of the forward chaining method in cyber counseling applications in overcoming problems that occur in students, aims to assist counseling guidance teachers and students in dealing with problems. The results of this study show that by using the forward chaining method in the cyber counseling application, the system can look for problems faced by counseling guidance teachers with students and the system can work according to the rules that have been set previously. Four counseling teachers conducted the system testing, which showed that 90% of the counseling teachers felt very helpful in knowing the problems of students through the cyber counseling application. In addition, testing also involved thirty students of SMP Negeri 36 Medan, where 95% of them were greatly helped by the cyber counseling application Universitas Harapan Medan 2024-05-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/848 10.35447/jitekh.v12i1.848 JITEKH; Vol 12 No 1 (2024): March 2024; 41-49 JiTEKH; Vol. 12 No. 1 (2024): March 2024; 41-49 2549-6646 2338-5677 10.35447/jitekh.v12i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/848/630 Copyright (c) 2024 Febri Alfiani Putri Harahap, Fera Damayanti, Yessi Fitri Annisah Lubis, Khairunnisa Khairunnisa, Nenna Irsa Syahputri, Siti Sundari

oai:ojs2.jurnal.harapan.ac.id:article/896 2024-04-04T07:56:42Z Jitekh:tes driver

Implementasi Node Bridge Untuk Meningkatkan Komunikasi Multi-Node Modul NRF24L01 Pada NLOS Purwanto, Abdi Ratiandi Yacoub, Redi Tjahjamooniarsih, Neilcy Wireless communications NRF24L01 node bridge multi-node Non-Line of Sight packet loss Multi-node communication is an important aspect in wireless system development, especially in the context of non-line of sight communications. In this study, we explore the implementation of multi-node communication with bridge nodes to increase distance and reduce packet loss in the NRF24L01 transceiver module. The aim of writing this manuscript is to evaluate the effectiveness of using bridge nodes in improving the quality of multi-node communications on the NRF24L01 module in non-line of sight conditions. This study was carried out through a series of multi-node communication tests with certain configurations, including maximum power usage, 250kbps bit rate, and 5dBi antenna. Tests were carried out at different distances with and without the use of bridge nodes to compare communication performance. Our findings show that a configuration with three client nodes and an NRF24L01 module equipped with a 5dBi antenna is capable of achieving the longest distance of up to 125 m. In non-line of sight conditions, the packet loss rate at a distance of 25-75 m has very good communication quality, with packet loss values ranging from 0-6%. However, at a distance of 100 m, the packet loss percentage exceeds the threshold (15%). The use of bridge nodes succeeded in significantly reducing the packet loss rate, reducing the percentage of packet loss at client nodes C1, C2, and C3 to 6.00%, 6.67%, and 6.33% respectively. Thus, implementing the bridge node has proven effective in improving the quality of communication on the NRF24L01 module in non-line of sight conditions. Universitas Harapan Medan 2024-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/896 10.35447/jitekh.v12i1.896 JITEKH; Vol 12 No 1 (2024): March 2024; 8-15 JiTEKH; Vol. 12 No. 1 (2024): March 2024; 8-15 2549-6646 2338-5677 10.35447/jitekh.v12i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/896/616 Copyright (c) 2024 Abdi Purwanto, Redi Ratiandi Yacoub, Yacoub, Neilcy Tjahjamooniarsih, Tjahjamooniarsih

oai:ojs2.jurnal.harapan.ac.id:article/909 2024-05-02T09:41:27Z Jitekh:tes driver

Implementasi Sistem Tranduser pada Peringatan Dini Banjir Berbasis Telegram Astuti, Widia Tri Yacoub, Redi Ratiandi Marpaung, Jannus early warning transducer LoRa IoT Telegram Floods as natural disasters are occurrences that can happen at any time and often result in loss of life and significant material damage. This research focuses on developing a transducer system for river water level monitoring based on Long Range Wireless Communication Technology and Internet of Things (IoT). The aim is to provide early warnings regarding river water levels, enabling the community to be more vigilant and minimize potential damage in the event of rising water levels. The research methodology involves utilizing a multiturn potentiometer in conjunction with Nodemcu ESP8266 and LoRa SX1278 devices. The results of the transducer system testing in a relevant environment showed an average difference of 0.27 cm, while testing in actual river water or real-world conditions yielded an average difference of 0.61 cm. The LoRa SX1278 testing at distances of 20 meters and 40 meters demonstrated a Packet Delivery Ratio (PDR) of 100% and a packet loss of 0%, indicating successful data reception. However, at a distance of 60 meters, the PDR was 90%, with a 10% packet loss, and at 70 meters, the PDR dropped to 10%, with a packet loss of 90%. This system includes Telegram notifications to allow users to access information on water levels as an early warning Universitas Harapan Medan 2024-05-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/909 10.35447/jitekh.v12i1.909 JITEKH; Vol 12 No 1 (2024): March 2024; 33-40 JiTEKH; Vol. 12 No. 1 (2024): March 2024; 33-40 2549-6646 2338-5677 10.35447/jitekh.v12i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/909/629 Copyright (c) 2024 Widia Tri Astuti, Redi Ratiandi Yacoub, Jannus Marpaung

oai:ojs2.jurnal.harapan.ac.id:article/910 2024-05-02T03:46:30Z Jitekh:tes driver

Rancang Bangun Sistem Kendali dan Pemantauan Ketinggian Air Pada Panci Penguapan Terbuka Berbasis Website Dolf, Fredericus Dandani Wigyarianto, F. Trias Pontia Priyatman, Hendro Ultrasonic Sensor JSN-SR04T DS18B20 ESP32 DevKitC V4 Thinger.io During the dry season, the water evaporation process experiences a significant increase resulting in a rapid decrease in water volume. Conversely, during the rainy season, the open evaporation pan can quickly fill up with rainwater, often causing overflow that disrupts the evaporation measurement process, thus requiring manual intervention to drain or refill the evaporation pan. One proposed solution to address this issue is by implementing an automatic water control system, water temperature monitoring, and water level measurement. The system design consists of two main aspects, namely hardware and software design. Hardware design involves creating a system block diagram and electronic circuit schematic diagrams. Meanwhile, software design includes program and WEB interface design. This research method involves the use of JSN-SR04T ultrasonic sensor, DS18B20 temperature sensor along with ESP32 DevKitC V4 device. Based on the test results, the ultrasonic sensor showed the highest error value of 19.38% with an average error percentage of 4.62% from 55 test runs. Meanwhile, the highest error value on the temperature sensor reached 3.46%, with an average error percentage of 1.46%. Sensor readings, pump status, and solenoid valve status are displayed in real-time on an LCD and Thinger.io dashboard. Universitas Harapan Medan 2024-04-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/910 10.35447/jitekh.v12i1.910 JITEKH; Vol 12 No 1 (2024): March 2024; 16-23 JiTEKH; Vol. 12 No. 1 (2024): March 2024; 16-23 2549-6646 2338-5677 10.35447/jitekh.v12i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/910/627 Copyright (c) 2024 Fredericus Dandani Dolf, F. Trias Pontia Wigyarianto, Hendro Priyatman

oai:ojs2.jurnal.harapan.ac.id:article/913 2024-04-26T04:40:55Z Jitekh:tes driver

Menganalisis dan Merancang Ulang User Interface Sistem Informasi Perpustakaan dengan Metode User-Centered Design Turnip, Togu Novriansyah Lumban Gaol, Tiurma Tesalonika, Risdo Marisi Tampubolon, Beny Luis Yuliana, Inez Cecilia Tiurma Prototype User Interface User centered Design Wireframe The Library Information System has an unattractive interface. This is evidenced by the distribution of satisfaction questionnaires to a number of people from the IT Del community, including students, lecturers, and staff who think that the PI Del Library Information System user interface (SIPP) is less attractive so that users experience difficulties in carrying out activities in the system such as finding books that are wanted. SIPP User Interface redesign aims to improve the appearance of the user interface on the system. The purpose of this study was to redesign the user interface of the library information system, in accordance with User Centered Design (UCD) and improve the usability component of the standard user interface. s In this study the User-Centered Design (UCD) methodology was used in the process of redesigning the user interface. SIPP. In the UCD methodology, 3 iterations were carried out. Each iteration is carried out with 4 research stages. In the process of planning the human centered process, the user context is determined, in the specify the context of use stage, user needs are determined using personas, in the specify user and organizational requirements stage, an evaluation is carried out for users regarding the current system, in the produce design solution stage, it is carried out temporary design from the results of user-centered system evaluation, and the evaluate designs against user requirements stage is re-evaluated by users against the results of the temporary design in the form of wireframes and submitted a questionnaire as a form of assessment to compare each iteration. The new design is in the form of improving the page appearance of the PI Del Library Information System with a User Centered Design process. The UCD process is carried out with 3 iterations Universitas Harapan Medan 2024-04-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/913 10.35447/jitekh.v12i1.913 JITEKH; Vol 12 No 1 (2024): March 2024; 24-32 JiTEKH; Vol. 12 No. 1 (2024): March 2024; 24-32 2549-6646 2338-5677 10.35447/jitekh.v12i1 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/913/628 Copyright (c) 2024 Togu Novriansyah Turnip, Tiurma Lumban Gaol, Risdo Marisi Tesalonika, Beny Luis Tampubolon, Inez Cecilia Tiurma Yuliana

oai:ojs2.jurnal.harapan.ac.id:article/947 2024-09-26T10:05:39Z Jitekh:tes driver

Potensi Bendung Irigasi Sebagai Pembangkit Listrik Tenaga Mikrohidro Taufik, Ahmad Sei Padang Dam Microhydro Power Plant Irrigation Sei Padang Dam is a dam that dams the flow of the Padang River specifically to meet the needs of 3 irrigation areas, namely Paya Lombang, Langgau and Bajayu. Sei Padang Dam is currently only used as an irrigation channel and the potential energy that can be produced is not yet known. This study utilizes dam structures that have been completed such as intake channels, headrace channels, forebays and tailrace channels. This potential analysis was carried out using several methods, such as measuring the head using Google Earth, and using irrigation water discharge data from BWS Wil II Sumatra. The results of the study showed that Sei Padang Dam has a PLTMH potential of 50 kW with a water discharge of 2 m3/second and a water fall height/head reaching 4 meters. The most optimal turbine type is the Archimedes screw turbine type. Universitas Harapan Medan 2024-09-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/947 10.35447/jitekh.v12i2.947 JITEKH; Vol 12 No 2 (2024): September 2024; 41-48 JiTEKH; Vol. 12 No. 2 (2024): September 2024; 41-48 2549-6646 2338-5677 10.35447/jitekh.v12i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/947/675 Copyright (c) 2024 Ahmad Taufik

oai:ojs2.jurnal.harapan.ac.id:article/996 2024-11-18T11:58:01Z Jitekh:tes driver

Implementasi Recurrent Neural Network Sebagai IDS Terhadap Serangan Jaringan Gultom, Fransko Siregar, Rosyidah recurrent neural network Intrusion detection system Network attack In recent years, a new term has emerged which is now widely applied as IDS (Intrusion Detection System), namely Deep Learing. One type of Deep – Learing is RNN (Recurrent Neural Network) which has recently been applied to IDS. Cyber attacs cannot be avoided, but they can be anticipated by building a system than can detect the performance of network data flows so that users can avoid all kinds of attacks and intrusion attempts from unknown parties. This research aims to test and analyse the accurary and speed of the Recurrent Neural Network in detecting attacks. The method used for this research is RNN, which is operated through the Python and Google Colab programs. Based on the results, the model was trained with 50 epochs resulting in an accurary of 92%. Meanwhile, a model with 30 epochs produces an accurary of 99%. So, the model can work well on training data with a total of 30 epochs. Universitas Harapan Medan 2024-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/996 10.35447/jitekh.v12i2.996 JITEKH; Vol 12 No 2 (2024): September 2024; 49-57 JiTEKH; Vol. 12 No. 2 (2024): September 2024; 49-57 2549-6646 2338-5677 10.35447/jitekh.v12i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/996/676 Copyright (c) 2024 Fransko Gultom, Rosyidah Siregar

oai:ojs2.jurnal.harapan.ac.id:article/1000 2024-11-20T08:14:06Z Jitekh:tes driver

Implementation of MABAC Method and Entropy Weighting in Determining the Best E-Commerce Platform for Online Business Wang, Junhai Darwis, Dedi Setiawansyah, Setiawansyah Rahmanto, Yuri Determining E-Commerce Entropy Implementation MABAC The main problem in choosing an e-commerce platform for an online business is finding the one that best suits the specific needs of the business. Each platform has its advantages and disadvantages, such as ease of use, cost, features offered, as well as support for inventory management, shipping, and payments. Other challenges include ensuring that the platform can support future business growth, offer good scalability, and provide flexibility in terms of customization and integration with digital marketing tools. In addition, data security and a good user experience are also important considerations for long-term success. The purpose of this study is to implement the MABAC method and Entropy weighting in determining the best e-commerce platform for online businesses, so that this research can provide clear and data-driven recommendations to stakeholders regarding the most effective e-commerce platform. The application of the MABAC method combined with Entropy weighting in determining the best e-commerce platform for online business people offers a comprehensive and objective approach in decision-making. This combination not only improves decision-making accuracy, but also ensures that the most important criteria are weighted accordingly, resulting in more reliable results in choosing the best platform for business needs. The final result of the MABAC Platform A score is the first choice, considering the highest score of 0.82, which indicates its optimal performance in meeting the criteria that have been set. In addition, Platforms B and C, with scores of 0.78 and 0.75, respectively. Universitas Harapan Medan 2024-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/1000 10.35447/jitekh.v12i2.1000 JITEKH; Vol 12 No 2 (2024): September 2024; 58-68 JiTEKH; Vol. 12 No. 2 (2024): September 2024; 58-68 2549-6646 2338-5677 10.35447/jitekh.v12i2 eng https://jurnal.harapan.ac.id/index.php/Jitekh/article/view/1000/677 Copyright (c) 2024 Junhai Wang; Dedi Darwis; Setiawansyah Setiawansyah; Yuri Rahmanto 816e7395d63376a1f89fb30ae0c130a9