Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS <div style="border: 3px #086338 Dashed; padding: 10px; background-color: #c3e4f3; text-align: left;"> <ol> <li><strong>Journal Title </strong>: Jurnal Teknik dan Science (JTS)</li> <li><strong>Initials </strong>: JTS</li> <li><strong>Frequency </strong>: Februari, Juni, Oktober</li> <li><strong>Print ISSN </strong>: 2828-7002</li> <li><strong>Online ISSN </strong>: 2828-6871</li> <li><strong>Editor in Chief </strong>: Sandy Suryady, ST., MT., C.AFE</li> <li><strong>DOI </strong>: 10.56127</li> <li><strong>Publisher </strong>: Asosiasi Dosen Muda Indonesia</li> </ol> </div> <p style="text-align: justify;"><strong>Jurnal Teknik dan Science (JTS) </strong><strong> </strong>ISSN: <a href="https://issn.brin.go.id/terbit/detail/20220308460973138" target="_blank" rel="noopener">2828-7002</a> (cetak), ISSN: <a href="https://issn.brin.go.id/terbit/detail/20220308520932029" target="_blank" rel="noopener">2828-6871</a> (online) adalah jurnal yang ditujukan untuk publikasi artikel ilmiah yang diterbitkan oleh Asosiasi Dosen Muda Indonesia dan di payungi Oleh Yayasan Dosen Muda Indonesia. Jurnal ini adalah jurnal Ilmu Teknik yang bersifat peer-review dan terbuka. Bidang kajian dalam jurnal ini termasuk sub rumpun Ilmu Teknik Mesin, Elektro, Kimia, Sipil, Metalurgi, Teknik Industri, Teknik Informatika, Sistem Informasi dan Ilmu Komputer. Jurnal Ilmu Teknik menerima artikel dalam bahasa Inggris dan bahasa Indonesia dan diterbitkan 3 kali setahun: <strong>Februari, Juni, Oktober.</strong> Silakan buat Artikel Template baru lalu kirimkan naskah Anda.</p> <div> <p><strong style="font-size: 0.875rem;">Indexed by:</strong></p> </div> <div> <table style="height: 133px;" width="688"> <tbody> <tr> <td style="width: 132.275px;"><a href="https://scholar.google.com/citations?user=p2gkcbcAAAAJ&amp;hl=id" target="_blank" rel="noopener"><img src="https://ejurnal.politeknikpratama.ac.id/public/site/images/admin/gs-88b3394f11408605d6e41cdbd883722f.jpg" alt="" width="1536" height="576" /></a></td> <td style="width: 132.275px;"><a href="https://garuda.kemdikbud.go.id/journal/view/26265" target="_blank" rel="noopener"><img src="https://ejurnal.politeknikpratama.ac.id/public/site/images/admin/garuda-978c6e33dc35b905c8fd7ca95049331f.jpg" alt="" width="1280" height="480" /></a></td> <td style="width: 132.275px;"><a href="https://journals.indexcopernicus.com/search/details?id=123198&amp;lang=en" target="_blank" rel="noopener"><img src="https://ejurnal.politeknikpratama.ac.id/public/site/images/admin/copernicus-36d5958ba63ae6b1a7c4fd8d5f2c8a89.png" alt="" width="1536" height="576" /></a></td> <td style="width: 132.275px;"><img src="https://ejurnal.politeknikpratama.ac.id/public/site/images/admin/ddimension.png" alt="" width="1536" height="576" /></td> <td style="width: 132.3px;"> </td> </tr> <tr> <td style="width: 132.275px;"> </td> <td style="width: 132.275px;"> </td> <td style="width: 132.275px;"> </td> <td style="width: 132.275px;"> </td> <td style="width: 132.3px;"> </td> </tr> </tbody> </table> </div> en-US [email protected] (Tommy) [email protected] (Abdul Muchlis) Sun, 03 Nov 2024 00:00:00 +0700 OJS 3.3.0.9 http://blogs.law.harvard.edu/tech/rss 60 IMPLEMENTASI KONSEP BLOCKCHAIN MENGGUNAKAN PYTHON DAN INTEGRASI DENGAN APLIKASI WEB: STUDI KASUS FLASK DAN HASHLIB https://journal.admi.or.id/index.php/JTS/article/view/1710 <p>**Abstrak**</p> <p>Perkembangan Internet yang pesat telah mempengaruhi berbagai bidang, dari pendidikan hingga bisnis, dengan lebih dari 5 miliar pengguna di seluruh dunia. Evolusi teknologi web, dari Web 1.0 hingga Web 3.0, menunjukkan perubahan signifikan dalam cara informasi disajikan dan bagaimana pengguna berinteraksi dengan data. Web 1.0 hanya memungkinkan akses satu arah terhadap informasi, sedangkan Web 2.0 memungkinkan interaksi dinamis antara pengguna dan konten melalui media sosial dan blog. Saat ini, Web 3.0 membawa konsep desentralisasi dengan memanfaatkan teknologi blockchain yang memungkinkan pengguna memiliki kendali penuh atas data mereka. Penelitian ini bertujuan untuk mengembangkan dan menguji aplikasi berbasis Web 3.0 yang menggunakan teknologi blockchain untuk penyimpanan dan pengelolaan data secara aman, efisien, dan terdesentralisasi. Meski prototipe yang dikembangkan dalam penelitian ini masih menggunakan penyimpanan data terpusat, konsep desentralisasi yang sesungguhnya akan diterapkan pada pengembangan lanjutan. Penyimpanan data dalam blockchain menawarkan keuntungan berupa keamanan dan transparansi yang lebih tinggi, meskipun dengan biaya yang lebih besar. Aplikasi ini diharapkan mampu mengatasi kebutuhan mendesak akan penyimpanan data yang aman dan terdesentralisasi, terutama untuk data yang membutuhkan tingkat kepercayaan dan integritas tinggi, seperti catatan medis, data keuangan, dan persediaan barang di gudang.</p> Aulia Intan Shafira, Dwi Kartinah Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1710 Sun, 03 Nov 2024 00:00:00 +0700 PROSES EXPAND TUBE HEAT EXCHANGER ETHYLENE SUPER HEATER H072 DI PT. INTAN PRIMA KALORINDO https://journal.admi.or.id/index.php/JTS/article/view/1796 <p>Expand Tube is a deformation process that is carried out in a cold state, to obtain a density between the tube and the tube hole in the tube sheet. This process aims to obtain a tight/tight connection so as to prevent leaks and not be separated from the seat, while minimizing stress corrosion and cracks axially in the transition zone behind the tube sheet. heater H072: 1. Carry out the stages of expanding tube heat exchanger ethylene super heater H072. 2. Obtain data on the tube when the process of expanding the tube heat exchanger ethylene super heater H072 is carried out. 3. Know the acceptance criteria for the process of expanding tube heat exchanger ethylene super heater H072. Writing conducted research with several methods including: 1. Observation method at PT. Diamond Prima Kalorindo. 2. Interview Method. 3. Literature Study Method. PT Intan Prima Kalorindo imports materials from Korea, but these materials are controlled by PT Intan Prima Kalorindo so that these materials are in accordance with consumer demand, during the expansion process it requires 2 materials, namely Aluminum Silicon 304 Stainless Steel. The Expand process is a deformation process that is carried out in a cold state, to obtain a density between the tube and the tube hole in the tube sheet. Where the tube has reached 'plastic' while the tube sheet is still in the 'elastic' stage. This process aims to obtain a tight/tight connection so as to prevent leakage and not detach from the seat, while minimizing stress corrosion and axial cracking in the transition zone behind the tube sheet. All expand calculations refer to TEMA 10th standards (Tubular Exchanger Manufactures Associations, Inc) and API 660 (American Petroleum Institute).&nbsp;</p> Eko Aprianto Nugroho, Abdul Rahman Agung Ramadhan Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1796 Sun, 03 Nov 2024 00:00:00 +0700 IMPLEMENTASI DATA MINING UNTUK MEMPREDIKSI BENCANA ALAM DI INDONESIA (STUDI KASUS: GUNUNG AKTIF) https://journal.admi.or.id/index.php/JTS/article/view/1819 <p>This research build to predict one of the natural disasters in Indonesia, that is Active Volcano which could erupt at any time. This natural disaster occurs quite often in Indonesia and results in losses for residents who live around active volcanoes. Based on this, the researcher wants to create a decision tree that can help predict the situation before a volcano erupts, which can later be applied so that residents around active volcanoes and ordinary people can know the signs before a volcanic eruption occurs. This research will use the application of data mining with the c4.5 algorithm method as a tool in creating decision trees.</p> Ratih Nurdiyani Sari, Dwi Setyasih, Octarina Budi Lestari Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1819 Sun, 03 Nov 2024 00:00:00 +0700 ANALISIS KESEIMBANGAN LINI PROSES PCB ASSEMBLY RADIO P155 SRS DI PT PANASONIC MANUFACTURING INDONESIA https://journal.admi.or.id/index.php/JTS/article/view/1895 <p>PT Panasonic Manufacturing Indonesia is one of the largest manufacturing companies producing electronic products in Indonesia, achieving significant growth and development in its production processes. Ensuring an efficient production process requires maintaining proper line balancing to achieve smooth operations. However, the radio P155 Srs production line experienced workload imbalances that led to bottlenecks and time losses. These issues arose due to factors such as insufficiently skilled workers and mismatched workloads that were not aligned with operators' abilities. Such conditions can lead to worker fatigue and reduced motivation and negatively impact work effectiveness. Research conducted using the Ranked Position Weight (RPW) method demonstrated improvements by reducing the number of workstations from 12 to 8. This optimization resulted in increased track efficiency, which improved from 65.10% and 57.43% to 83.10% and 85.94%.</p> Citra Amelia Pratiwi, Arief Nurdini, Ardhy Lazuardy Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1895 Sun, 03 Nov 2024 00:00:00 +0700 SISTEM WEB POINT OF SALES (POS) BERBASIS UNIFIED MODELLING LANGUAGE (UML) DENGAN BLACKBOX TESTING UNTUK BARBERSHOP NAGATA https://journal.admi.or.id/index.php/JTS/article/view/1896 <p>Nagata Barbershop has quite a lot of transactions carried out every day, and there are also plans to expand the business by adding branches. Problems arise during this time when recording transactions manually using paper, there is a mismatch with the data that should be used and it is difficult to manage transaction reports. Barbershop Nagata needs an application that can increase the accuracy of recording transactions, make it easier to manage financial reports and can also be used long term if you want to add branches with the same system. The aim of this research is the results of implementing the solutions used to overcome this problem. Choosing a web-based application is a supports for applications that can be accessed any time and can be implemented on different platforms. The Point of Sales (POS) application at the Nagata Barbershop has been tested using black box testing method.</p> Wisnu Sukma Maulana, Julia Fajaryanti, Aldrick Subhan Zul Hanafi Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1896 Sun, 03 Nov 2024 00:00:00 +0700 VISUALISASI DASHBOARD TREND KEMISKINAN KOTA DEPOK TAHUN 2021-2022 DENGAN MENGGUNAKAN MICROSOFT POWER BUSINESS INTELLIGENCE DAN METODE UAT (USER ACCEPTANCE) https://journal.admi.or.id/index.php/JTS/article/view/1897 <p>The problem of poverty is a complex and multidimensional problem so it is a development priority for the Indonesian Government. Efforts to eradicate poverty are carried out to realize the nation's ideals, namely, the creation of a just and prosperous society. The Urban Poverty Alleviation Program (P2KP) is a national program implemented by the Indonesian Government in order to overcome the problem of poverty that occurs in society, especially people living in urban areas. The level of poverty in the city of Depok which is explained in written form is less effective and difficult for readers to understand. Therefore, this data visualization dashboard was created by the author to help readers understand the state of poverty levels in the city of Depok through several existing factors. The dashboard consists of several visuals to differentiate poverty factors. Based on tests that have been carried out using UAT (User Acceptance Testing) to determine the reader's assessment of the data visualization dashboard that has been created by distributing questionnaires to 50 respondents, resulting in a score of 82.5% which results in a "very strong" category for the Percentage Level data visualization dashboard. Depok City Poverty 2021-2022.</p> Widyati Cahya Putri, Muhammad Edy Supriyadi Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1897 Sun, 03 Nov 2024 00:00:00 +0700 ANALISIS PERBANDINGAN HASIL KLASIFIKASI JENIS PENYAKIT TANAMAN TOMAT MENGGUNAKAN ARSITEKTUR MOBILENET, DENSENET121, DAN XCEPTION https://journal.admi.or.id/index.php/JTS/article/view/1898 <p>Machine learning can be applied in various needs, such as image classification. Plant disease classification is essential and significantly supports the agricultural sector in this modern era. With an application capable of classifying diseases in crops, farmers can accurately identify the diseases affecting their harvest and address them more efficiently and effectively compared to traditional methods, which can be more time-consuming. This research aims to determine the best TensorFlow architecture among the three architectures used in this study, namely MobileNet, DenseNet121, and Xception, to classify 9 types of tomato plant diseases and 1 healthy tomato plant. The study concludes that DenseNet121 is the best architecture for classifying the 9 types of tomato plant diseases and 1 healthy tomato plant. During testing, the DenseNet121 model achieved an accuracy, precision, recall, and F-1 score of approximately 0.987 or 98.7%. Xception ranked second with all four metrics scoring around 0.986 or 98.6%, while MobileNet ranked last with metrics scoring approximately 0.973 or 97.3%.</p> Kuwat Setiyanto, Michael Bolang Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1898 Sun, 03 Nov 2024 00:00:00 +0700 PERANCANGAN WEBSITE SEKOLAH PENGOLAAN DATA SISWA https://journal.admi.or.id/index.php/JTS/article/view/1899 <p>The rapid development of information and communication technology (ICT) has significantly influenced various aspects of human life, including the education sector. Schools, as educational institutions, require efficient and accurate student data management to support administrative and academic activities. However, many schools still rely on manual methods, which are time-consuming, prone to errors, and inefficient in handling large amounts of data. This research focuses on designing and implementing a web-based Student Data Management System. The application leverages PHP as the server-side programming language, MySQL for database management, and CSS for an attractive and user-friendly interface. The system includes features such as adding, updating, and viewing student data, facilitating centralized and structured data management. The design follows the Software Development Life Cycle (SDLC) method, including planning, design, implementation, and testing stages. The results demonstrate that the system can effectively replace manual data management methods, offering a more efficient and modern solution for schools. However, further development, particularly in responsive design for mobile devices, is suggested to enhance user experience.</p> Dwi Kartinah Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1899 Sun, 03 Nov 2024 00:00:00 +0700 PEMBUATAN MEDIA PERTUMBUHAN BAKTERI ESCHERICHIA COLI DENGAN MENGGUNAKAN UMBI UBI JALAR PUTIH IPOMOEA BATATAS https://journal.admi.or.id/index.php/JTS/article/view/1894 <p class="Normal1" style="text-align: justify;">Nutrient Agar (NA) is a growth medium for heterotrophic microorganisms made from meat extract, peptone and agar, but commercially it is relatively expensive. As an alternative, researchers innovated using white sweet potatoes (Ipomoea batatas) which are rich in carbohydrates, protein, fat and natural fiber as a growth medium for Escherichia coli bacteria. The aim of this research is to examine the use of white sweet potato flour as a growth medium for Escherichia coli bacteria, and compare it with a medium that is added with meat broth. This research used the experimental research method twice with three repetitions of sweet potato flour, namely 10gr (w/v), 15gr (w/v), 20gr (w/v) and NA control. After conducting research on white sweet potato flour, it was found that the water content test results met the standards of around 8.56–9.66%. The panelists' organoleptic test stated that white sweet potato flour had a smooth texture, yellowish white color, slightly sweet aroma. The solubility test proved that white sweet potato flour does not dissolve in water, and the pH test showed a value of 6.8, the percentage of carbohydrates contained was 74.32%, and protein 1.36%. The results obtained by the number of bacterial colonies with the best treatment without broth were F3 (20 gr white sweet potato flour) 25.5 x 106 CFU and the best treatment with the addition of broth was F2 (sweet potato flour + 15 gr broth) 28.7 x 106 while the NA control showed results of 25.6 x 106 CFU. It can be concluded that white sweet potato flour meets all test standards so that it can be used as an alternative growth medium for bacteria, especially Escherichia coli.</p> Ita Hasanah Br Karo, Rasyidah Rasyidah, Rizki Amelia Nasution Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1894 Sun, 03 Nov 2024 00:00:00 +0700 ANALYSIS KEJADIAN FRAUD PADA SEBUAH FINTECH https://journal.admi.or.id/index.php/JTS/article/view/1912 <p>Fraud detection in technology-based financial services (Fintech) is one of the main challenges in the digital era. This research aims to develop a productive fraud detection system using data analytics and machine learning techniques. This project utilizes Python for algorithm implementation, accompanied by process visualization through flowcharts and analysis of related datasets. The resulting system is expected to be able to improve accuracy in detecting suspicious activities.</p> Andre Pratama Adiwijaya Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1912 Sun, 03 Nov 2024 00:00:00 +0700 PERAN SISTEM INFORMASI AKUNTANSI (SIA) TERHADAP KEUANGAN https://journal.admi.or.id/index.php/JTS/article/view/1913 <p>The Accounting Information System (AIS) plays a crucial role in optimizing financial processes across various types of organizations. AIS implementation enables real-time integration of financial data, improves the accuracy of financial reporting, and facilitates better strategic decision-making. This study aims to evaluate the effectiveness of AIS in enhancing operational efficiency and financial reporting accuracy. The study employs a case analysis method on organizations that have implemented AIS. The results indicate that AIS significantly contributes to improving financial management efficiency, accelerating report processing time, and strengthening internal controls. Thus, AIS proves to be an effective tool for transparent and accountable financial management.</p> Wahyu Widjayanti, Windy Dwiparaswati, Ivan Maurits Copyright (c) 2024 Jurnal Teknik dan Science https://journal.admi.or.id/index.php/JTS/article/view/1913 Sun, 03 Nov 2024 00:00:00 +0700