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Dr. Ratih Kumalasari, S.Pd., M.Si.
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Jurnal Jaring SainTek
Published by Universitas Bhayangkara Jakarta Raya
ISSN : -     EISSN : 26569485     DOI : https://doi.org/10.31599/jaring-saintek.v2i2.323
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Energy Engineering Industrial & Manufacturing Engineering
Jurnal Jaring SainTek (JJST) merupakan merupakan jurnal ilmiah yang diterbitkan oleh Lembaga Penelitian, Pengabdian Masyarakat, dan Publikasi (LPPMP) Universitas Bhayangkara Jakarta Raya dan dikelola oleh Fakultas Teknik Universitas Bhayangkara Jakarta Raya. Jurnal Jaring SainTek (JJST) ini merupakan kumpulan artikel – artikel ilmiah dari hasil penelitian, ulasan ilmiah, serta kajian berkaitan dengan disiplin ilmu teknologi industri, kimia, perminyakan, lingkungan, dan informatika yang menjadi obyek kajian pada umumnya. Jurnal ini diterbitkan dua kali setahun (semester genap terbit April dan semester ganjil terbit Oktober). Pertama kali terbit bulan April 2019 dengan E-ISSN: 2656-9485.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 129 Documents
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Evaluasi Aplikasi My Telkomsel Menggunakan Metode Usability Testing Cintiari Devi , Pramita; Aulia Hanafi, Alya; Cahya Wardhana, Ariq
Jurnal Jaring SainTek Vol. 5 No. 1 (2023): April 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/8mxcp788

Abstract

My Telkomsel application is a mobile-based application intended for Telkomsel starter card users in purchasing credit, quota and additional service features provided by Telkomsel as one of the services provided to its users. This research aims to produce an evaluation of an application design based on user experience. The research target to be achieved is the new design of the My Tekomsel mobile app building using user experience using the remote usability testing method and the questionnaire evaluation method, in which application users will be given a self-responsible questionnaire by the user which then becomes reference material for brought out a new design from My Telkomsel
Aplikasi Transformasi Reduction to Pole (RTP) Menggunakan Matlab dalam Pengolahan Data Magnetik WDMAM pada Wilayah Tapal Kuda -Jawa Timur Supriyadi
Jurnal Jaring SainTek Vol. 5 No. 1 (2023): April 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/zeeq1c34

Abstract

In the magnetic method, the anomalous magnetic field is caused by a dipole magnetic field source. The magnetic anomaly map is complex and relatively challenging to read because each place has a different angle of inclination and declination. The use of a RTP filter is crucial to overcoming the difficulty in magnetic data interpretation. The RTP transformation has been successfully implemented and applied to the WDMAM magnetic data for Tapal Kuda Region-East Java, using the built-in Matlab algorithms. The RTP application in this region uses the values of the inclination angle I = -32.82° and the declination angle D = 0.72°. According to the RTP results' magnetic anomaly, there has been a change in the magnetic field's range from (-345.51 nT to 282.30 nT) to (-975.37 nT to 782.38 nT). The locations of the closures of the positive and negative magnetic anomalies also changed. The middle to northern portions of the Tapal Kuda Region are dominated by a positive magnetic anomaly that is assumed to be related to the Quaternary Volcanic Zone. The positive anomaly closures moved toward the west, specifically toward Mount Bromo and Mount Argopuro. The Horseshoe Region's southern edge is dominated by a negative magnetic anomaly that is assumed to be associated with the Southern Mountain Zone. The negative anomaly closure also shifted location, to the southwest, approaching Mount Semeru..
Penerapan Algoritma Apriori Untuk Rekomendasi Produk Bagi Pelanggan Toko Online Berbasis Website Hanapi, Ana; Sari, Rafika; Mukhlis
Jurnal Jaring SainTek Vol. 5 No. 1 (2023): April 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/4bkekg11

Abstract

Today, almost all activities in various sectors of life have been transformed into digital systems to support various related activities. Consideration of the efficiency of dissemination of information outreach and data management that can be recorded properly is the main reason for switching to a digital system. In the economic sector, global business developments are rife with the use of digital devices in marketing various products to increase marketability. Based on this, this research was conducted to apply the Apriori algorithm association data mining to provide product recommendations for online shop customers. The CodeIgniter framework and the waterfall method are used to build a website-based information system. Sampling data was obtained from transaction data at the Rizvenastore store which was used for the database using MySql. The application of the a priori algorithm can form association rules as a reference in store product promotions and decision support in providing product recommendations to customers based on predetermined minimum support and confidence values. From testing the system using the blackbox method, the results obtained for all activities on all actors can run as expected.
Implementasi Lean Manufacturing di PT. Gerem Jaya Kurniaty Ratoko, Sita; Irpan Sabila, Ade
Jurnal Jaring SainTek Vol. 5 No. 2 (2023): oktober 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/3tp1nh62

Abstract

Gerem is a household furniture company specializing in the production of home door leaves and wooden home accessories. Currently, the issues faced by PT. Gerem include irregular orders, product variations leading to overproduction, resulting in the risk of excess stock, which can cause product damage due to prolonged storage and wastage of time if they need to be reworked. This issue primarily occurs in the production of door leaves. Identification through interviews and observations reveals wastage, including scrap, rejected products, extended processes due to machine failures, and rework due to measurement errors and defective products. In an effort to improve productivity, the company utilizes a lean approach to identify and eliminate waste using Value Stream Analysis Tools (VALSAT). This research has found that the longest time is spent on the measurement, cutting, and wood planing processes, with a lead time of 120 minutes. The analysis of waste calculations uses the Waste Relationship Matrix (WRM) and identifies defects as the biggest source of waste (20.56% vertical and 19.63% horizontal). Based on this, improvement planning is carried out with the design of a future state mapping, reducing the operation time to 170 minutes, reducing the storage of finished products to about 2 days, and achieving a delay of 0 minutes. This increases productivity by organizing the number of employees in each production process
Pengaruh Job Satisfaction Terhadap Employee Performance Pada Perusahaan Penggilingan Tepung di Surabaya Adi, Prayonne; Darmawan, Bryan; Gooier, Willy
Jurnal Jaring SainTek Vol. 5 No. 2 (2023): oktober 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/0mmx8y15

Abstract

One of the factors that affect job performance is employee satisfaction with their work environment. This study aims to measure job satisfaction and job performance and test the correlation between the two variables using various measurement methods, including eNPS, ESI, Rating Scale Individu, and Individual Work Performance Questionnaire (IWPQ). The correlation between job satisfaction and job performance can be calculated using Scatterplot and Pearson Correlation. The eNPS measurement results show that employees gave a score of 6%, indicating a fairly good position for the company. The ESI score for employees is 72.8, which is a good result but still has room for improvement. Based on the Pearson Correlation calculation, the correlation value is 0.733, indicating a positive relationship between job satisfaction and job performance. Based on the research findings, some improvement ideas include increasing salary, sanitation, comfort in religious facilities, and room comfort.
Potensi Pemanfaatan Limbah Pasar Kubis-Kubisan (Brassica Oleracea L), Pisang (Musa Paradisiaca), Dan Umbi Akar (Tuber Rhizogenum) Sebagai Bahan Baku Energi Terbarukan Biogas Nuraliyah, Andi; Raking, Jumrin; Marzuki, Ismail
Jurnal Jaring SainTek Vol. 5 No. 2 (2023): oktober 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/j9gs5452

Abstract

One form of energy that can overcome reduced energy sources is biogas obtained through the cooking process using market waste such as cabbage, bananas and root tubers with EM4 bioactivator. This study aims to determine the C/N ratio, the volume of methane gas, and the chemical composition of the gas as measured by the ECOM J2KN gas analyzer and the FTIR Spectro. Based on the results of the study, the optimum C/N ratio for the quickest time of 7 days for raw materials for cabbage, bananas, root tubers were 14.5; 10.6 and 23.9. The volume of methane (ml) obtained were 151 ml, 186 ml, and 289 ml. The mixture of the three raw materials with and without the EM4 bioactivator obtained methane gas volumes of 171 and 143. The main chemical composition of biogas detected on the J2KN ECOM tool was Methane (CH4) 55.81%. Carbon Dioxide (CO2) 14.46%, and Oxygen (O2) 17.73%. The chemical gas composition with the CH group function was obtained at a wavelength of 2933.73 cm-1. These results indicate that vegetable waste from cabbage, bananas, and root tubers can be used as raw material for biogas.
Sistem Informasi Pelayanan Posyandu Pada Kelurahan Tangki, Jakarta Barat Berbasis Android Arroyana Firdauz, Rizky; Fauziyah; Galih Whendasmoro , Raditya
Jurnal Jaring SainTek Vol. 5 No. 2 (2023): oktober 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/77cjaf39

Abstract

Posyandu are types of activities that trying to build health of people and used for the maintenance of community. But currently the implementation of information service in posyandu are still experiencing several problem, including data on activities that still use paper so that processing activity report data takes longer, accumulated report data, as well as allowing for loss of posyandu activity data in Tangki ward West Jakarta. Based on the existing problem, a posyandu service information system was designed and built which is expected to be able to handle these problems. In defining needs and analyzing system development data collection methods were carried out by means of observation, interviews and review of literature from various sources of information. For analysis and design methods using Unified Modeling Language (UML), the posyandu service information system uses the Kotlin programming language and the database uses the MySQL database.
Rancang Bangun Sistem Informasi Kepegawaian Polres Metro Bekasi Menggunakan Metode V-Model Hartanti, Dian
Jurnal Jaring SainTek Vol. 5 No. 2 (2023): oktober 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/drdz7863

Abstract

The personnel information system is a system that records employees at the Bekasi City Metro Police. The problem of data collection at the Metro Jaya Regional Police is still not optimal, and there are no reminders for employees who will receive regular salary increases, promotions and employee pensions within the Bekasi City Metro Police, using the V-Model method which emphasizes validation/testing at each stage. system life cycle and user involvement in system development where users carry out system acceptance testing at the end of the development stage. The aim of this research is to create a Bekasi City Metro Police Employee Information system with Reminders (reminders) for Periodic Salaries, Promotions and Pensions, so that with this application employees will not need to be reminded repeatedly to collect data on requirements for promotions, periodic salaries and pensions., The expected results are that this information system will be useful for the Bekasi City Metro Police so that employee data collection can be maximized.
Peramalan Nilai Rugi Daya Pada Serat Optik Glass Akibat Pengaruh Tekanan dan Suhu Berbasis Interpolasi Lagrange Tamimah, Ni’matut; Chitami Priawan Siregar, Aslam
Jurnal Jaring SainTek Vol. 5 No. 2 (2023): oktober 2023
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/zwb0z211

Abstract

A study has been carried out using SMS structured glass optical fiber (Singlemode-Multimode-Singlemode) as a pressure and temperature sensor to detect cracks in the highway structure. In that research, the methods used are experimental and simulation methods. The experimental method uses OTDR (Optical Time Domain Reflectometer), but the simulation method uses Lagrange interpolation. Next, two kinds of SMS structured glass optical fiber are used the multimode length of 6.5 cm and 7 cm at temperatures 470C dan 570C. Based on the experimental results, the SMS structured glass optical fiber with a multimode length of 7 cm has a better level of linearity than a multimode length of 6.5 cm, equal to 94.83% for 470C and 86,45% for 570C. As for the error of the power loss value that occurs, based on the experimental results on the simulation results for a multimode length of 7 cm on a glass fiber optic sensor with an SMS structure, it has an error smaller than a multimode length of 6.5 cm, which is 1.301% when it is measured on 570C. Therefore, the SMS structured glass optical fiber with a multimode length of 7 cm is more suitable for use as a pressure sensor.
Analisis Perbandingan Emisi Gas Rumah Kaca dan Potensi Energi Listrik Antara Insinerasi dan Proses Biologi (Studi Kasus Pembangkit Listrik Tenaga Sampah Merah Putih) Mulia Bakti, Rani; Susanto Joyosemito, Ibnu; Shanti Meilani, Sophia
Jurnal Jaring SainTek Vol. 6 No. 1 (2024): April 2024
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/86mqy720

Abstract

Solid waste disposal is one of the contributing sectors to greenhouse gas (GHG) emissions. Open burning of waste generates CO2, anaerobic decomposition of organic waste generates CH4, while composting activities and biological processes generate CO2, CH4, and N2O. Transportation to waste disposal facilities contributes to GHG emission as well. The aim of this study is to compare GHG emission and electrical energy generated from incineration and biological process. Calculation of estimated GHG emission in this study used the IPCC Tier 2 method with a combination of default data and local data such as data on the composition of waste for incineration compared to biological processes. The result indicated that incineration generated lower GHG emission compared to biological process. Higher electrical energy potential can be obtained from biological process, if most of CH4 is converted to electrical energy. PLTSA Merah Putih, which applied energy recovery from incineration, simultaneously convert heat to electrical energy and reduce GHG problem from CH4

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