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Dodi Siregar
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JiTEKH (Jurnal Ilmiah Teknologi Harapan)
Published by Universitas Harapan Medan
ISSN : 23385677     EISSN : 25496646     DOI : 10.35447
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering
JITEKH merupakan jurnal ilmiah yang menyajikan artikel orisinal tentang pengetahuan dan informasi riset atau aplikasi riset dan pengembangan terkini dalam bidang keteknikan dan teknologi informasi. Ruang lingkup Jurnal JITEKH meliputi bidang Informatika, Teknik Mesin, Teknik Elektro, Sistem Informasi, Teknik Industri dan Teknik Sipil. Focus and Scope: Design Manufacture Konversi Energi Material Data analysis Natural Language Processing Artificial Intelligence Neural Networks Pattern Recognition Image Processing Genetic Algorithm Bioinformatics/Biomedical Applications Biometrical Application Content-Based Multimedia Retrievals Augmented Reality Virtual Reality Information System Game Mobile Data mining Artificial Intelligence Sistem Pendukung Keputusan IT Bussiness Incubation IT Governance Cloud Computing Dessision Support System Instrumentation and Control Electrical (Power) Electronics Engineering Industrial Engineering Optimasi Sistem Produksi Perencanaan Produksi dan Pengendalian Persediaan Penjadwalan dan Manajemen Operasi/Proyek Computer-Integrated Manufacturing System Sustainable Product Design and Manufacturing Penelitian Operasional dan Decision-Making Model Manajemen Teknologi Pengukuran Kerja, Faktor-Faktor Manusia dan Ergonomi Rekayasa dan Pengendalian Kualitas Sistem Logistik dan Supply Chain Management Perancangan dan Pengembangan Produk Concurrent Engineering Analisis Ekonomi Teknik Pemodelan Sistem dan Analisis Simulasi Perancangan Layout Fasilitas Knowledge Management Reliability and Maintenance Engineering Sistem dan Teknologi Informasi Rekayasa Pelayanan (Service Engineering) Technopreneurship dan Inovasi Aplikasi Model Stokastik dalam Teknik Industri Aplikasi Metode Metaheuristik dalam Teknik Industri Building Materials and Structures Constructions Technology Constructions Economy and Management Earthquake Engineering Environmental Engineering Renovation of Buildings Geotechnical Engineering Highway Engineering Hydraulic and Hydraulic Structures Road and Bridge Engineering Structural Engineering Surveying and Geo-Spatial Engineering Transportation Engineering Tunnel Engineering Urban Engineering and Economy Water Resources Engineering Urban Drainage
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 83 Documents
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SISTEM PENDUKUNG KEPUTUSAN UNTUK MENENTUKAN TINGKAT KECERDASAN MAHASISWA DALAM PROSES PEMBELAJARAN MENGGUNAKAN METODE FUZZY ASSOCIATIVE MEMORY Budi Syahriani
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 2 (2020): September 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i2.197

Abstract

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.
E-JOB VACANCY BERBASIS MOBILE DENGAN METODE RAD Abdul Karim Lubis; Marina Elsera; Septiana Dewi Andriana
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 2 (2020): September 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i2.200

Abstract

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.
SISTEM INFORMASI PEMBAYARAN IURAN KEAMANAN DAN KEBERSIHAN PADA PERUMAHAN BERBASIS WEBSITE MENGGUNAKAN METODE DESIGN THINKING Wandani Siregar; Irvan Irvan; Eka Rahayu
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 2 (2020): September 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i2.204

Abstract

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
PENERAPAN METODE WEIGHTED MOVING AVERAGE UNTUK PERAMALAN PERSEDIAAN PRODUK FARMASI Zihan Silvya; Ahmad Zakir; Dedy Irwan
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 2 (2020): September 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i2.220

Abstract

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
PENERAPAN METODE SMART DALAM PEMILIHAN BIJI KOPI TERBAIK Tuwah Bertona; Ilham Faisal; Divi Handoko
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 2 (2020): September 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i2.254

Abstract

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
PEMANFAATAN THERMO ELECTRIC GENERATOR DARI KONVERSI ENERGI PANAS MENJADI LISTRIK UNTUK CHARGER PONSEL Jisro Silaban; Agus Almi Nasution; Indra Roza
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 2 (2020): September 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i2.295

Abstract

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.
ANALISA PERUBAHAN SIFAT MEKANIS BAJA AISI 1045 BERDIAMETER 25 MM AKIBAT PERLAKUAN PANAS TEMPERING DAN MENGGUNAKAN TENSILE TEST DENGAN MEDIA PENDINGIN AIR Rifki Gunawan; Junaidi Junaidi; Fadly A. Kurniawan
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 1 (2020): Maret 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i1.296

Abstract

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.
OPTIMASI KINERJA TURBIN PELTON DENGAN MENGGUNAKAN2 NOZZLE DAN KEMIRINGAN BUCKET -8° DAN 8° Jodi Simbolon; Junaidi Junaidi; Fadly Ahmad Kurniawan
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 1 (2020): Maret 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i1.303

Abstract

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.
ANALISIS PENERAPAN TOTAL PRODUCTIVE MAINTENANCE (TPM) MELALUI METODE OVERALL EQUIPMENT EFFECTIVENESS (OEE) PADA MESIN PACKER DI PABRIK SEMEN PT. XYZ M. Agung Pratama; Fadly Ahmad Kurniawan; Ade Irwan
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 1 (2020): Maret 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i1.305

Abstract

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%.
ANALISIS PERBANDINGAN MANAJEMEN KONFIGURASI MENGGUNAKAN ANSIBLE DAN SHELL SCRIPT PADA CLOUD SERVER DEPLOYMENT AWS Tedi Alfiandi; T. M. Diansyah; Risko Liza
JiTEKH (Jurnal Ilmiah Teknologi Harapan) Vol 8 No 2 (2020): September 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i2.308

Abstract

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.

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