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FAKULTAS SAINS DAN TEKNOLOGI UIN SULTAN SYARIF KASIM RIAU Kampus Raja Ali Haji Gedung Fakultas Sains & Teknologi UIN Suska Riau Jl.H.R.Soebrantas No.155 KM 18 Simpang Baru Panam, Pekanbaru 28293
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INDONESIA
SITEKIN: Jurnal Sains, Teknologi dan Industri
Published by Universitas Islam Negeri Sultan Syarif Kasim Riau
ISSN : 24070939     EISSN : 27212041     DOI : https://doi.org/10.24014/sitekin.v18i1.12062
Core Subject : Economy, Science, Education, Engineering,
Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Industrial & Manufacturing Engineering Other
Sesuai dengan standard ISO 45001 bahwa karyawan harus berpartisipasi dalam melakukan pencegahan kecelakaan. Untuk itu perusahaan telah menetapkan Program Hazob (Hazard Observation) untuk mengidentifikasi bahaya dan melakukan tindakan koreksinya. Penerapan Program Hazob masih dengan metode konvensional, mengisi lembar form, sehingga tidak efektif, efisien dan tidak berintegrasi dengan sistem lain. Transformasi digitalisasi diperlukan dengan merubah bisnis proses pelaporan dari konvensional ke aplikasi website atau mobile Apps. Hasil dari penelitian ini terjadi peningkatan kinerja operasional keselamatan kerja dengan program Hazob (i) pengisian form secara manual bertransformasi ke system digitalisasi aplikasi website dan mobile Apps; (ii) leading indikator pelaporan hazob meningkat menjadi 1.364 dari seluruh lokasi. Ini bermakna, bahwa perusahaan telah mengidentifikasi bahaya sejumlah tersebut dalam kuran waktu 3 bulan, dan melakukan tindakan koreksi sebelum terjadi kecelakakan. Data persentasi kontribusi menunjukan bahwa semua pihak bagian di perusahaan berkontribusi untuk melakukan pelaporan hazob. Hal ini menunjukan komitmen semua tingkatan untuk melakukan pecegahan kecelakaan. Angka terbesar pada tingkatan karywan ( 63 %) berkontribusi ; (iii) dampak implementasi berupa tingkat penurunan angka kecelakaan dengan Lagging Indikator sebagai berikut : LTIR = 0 (Nol), TRIR, yang sebelumnya 0.87 di bulan juni, turun menjadi 0 (nol) dari bulan Juli sampai September 2020, dan IFT, turun terus setiap bulan dan di bulan September di angka 12.33.
Arjuna Subject : Bisnis, Menejemen, dan Akutansi (semua kategori) - Strategi dan Menejemen
Articles 607 Documents
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Analysis of SMEs Readiness in the Implementation of Internet of Things to Support the Smart City Concept Anestesia Purba, Arini; Sibatuara, Janter; Acantha Manapa Sampetoding, Eliyah; Sirinti Pongtambing, Yulita; Isabella, Mayati; Dwi Wantira, Amanda; Desfelia Ciciolini Sidabutar, Elizabeth
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.34060

Abstract

This study aims to analyze the readiness of MSMEs based on existing model artifacts related to implementing the Internet of Things (IoT) to support the concept of smart cities. In this study, the Design Science Methodology understanding model from Hevner is used in analyzing the views of SMEs actors. The results of the questionnaire processing from 147 MSME actors found that the obstacles to IoT implementation are the production process that is still manual, the production machine is still not automatic/manual, difficulties in capital, the communication media used is still email and telephone, and the production work environment is not safe and still integrated with the house. These obstacles can be used as input in implementing the Internet of Things in MSMEs. The recommendations given in the implementation of the Internet of Things for SMEs are to provide capital loans in collaboration with Regional Banks, determine regional superior products to be used as Pilot Projects in the implementation of the Internet of Things, collaborate with local governments for the development of MSMEs in funding and appropriate technology to increase the productivity and quality of SMEs production.
Use of Data Mining Technology to Identify Narcotics Distribution Patterns Moningka, Nirwan; Kusrini, Kusrini
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.32064

Abstract

The abuse of narcotics has become one of the significant social and health problems in various countries worldwide. Conventional methods relying on manual analysis or traditional approaches may not be effective enough in addressing this challenge. Therefore, a more sophisticated and efficient approach is needed to tackle this issue. Data mining uses techniques from statistics, machine learning, and pattern recognition to extract valuable information from large data sets. This research employs data collection methods from the Narcotics Investigation Directorate of the Maluku Regional Police from 2021 to 2023. This data includes profiles of narcotics users, such as the age of the perpetrators, gender, last education level, occupation, location of arrest, and type of narcotic. The aim is to identify the patterns of narcotic distribution in the Maluku Province using data mining techniques, namely the Apriori algorithm, Naive Bayes, Random Forest, and Support Vector Machine (SVM). The exclusion of the age variable was a correct decision, as it resulted in an increase in accuracy. This increase is likely due to the high variation in the age variable. The accuracy improvement was more evident in the Random Forest algorithm compared to Naive Bayes and SVM. Random Forest achieved satisfactory results with an accuracy of 0.96. This indicates that Random Forest is a good algorithm for predicting narcotics user data. These results suggest that the pattern of narcotics distribution is closely associated with specific factors, including the male gender, the highest level of education being high school, a self-employed occupation, arrest locations on public roads, and the type of narcotic being Shabu.
Design and Development of an Off-Grid Solar Power Monitoring System on A 160 Wp PV System at SMPN 04 Tempurejo, Jember Regency Ramadhan, Fila; Rachmanita, Risse Entikaria; Mulyono, Novangga Adi; Nurazaq, Warit Abi; Hasbiyati, Haning
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.32975

Abstract

Solar energy can be converted into electrical power through photovoltaic (PV) technology, commonly referred to as solar panels.  As a result, the implementation of a monitoring system is crucial to mitigate battery degradation caused by excessive discharging. This study employs a research and development (R&D) approach. The off-grid solar power monitoring system installed at SMPN 04 Tempurejo is designed to facilitate maintenance and enhance system reliability. By integrating Internet of Things (IoT) technology, the monitoring system allows for real-time tracking of voltage, current, and power output from the PV system via smartphone access, irrespective of location. Consequently, the IoT-based monitoring system significantly improves the management and oversight of the off-grid solar power system at SMPN 04 Tempurejo.
Optimal Coordination of Directional Overcurrent Relays Using a Modified Grey Wolf Optimization Algorithm Considering Multiple Characteristic Curves Eka Putra, R. Reski; Pujiantara, Margo; Harjian, Muhammad Rivaldi; Winarta, Fadhel Putra; Fahreza, Muhammad
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.33737

Abstract

The effective coordination of directional overcurrent relays (DOCRs) is essential for maintaining the stability and dependability of power systems. This work presents a modified grey wolf optimization (MGWO) approach for addressing the DOCR coordination problem. The MGWO algorithm improves the original grey wolf optimization (GWO) by increasing convergence characteristics and balancing the exploration and exploitation stages. This equilibrium is attained by a dimension learning-hunting method and a quadratic reduction in the control parameter during the optimization phase. DOCR coordination is optimized using the MGWO method, using decision factors such as pickup current, time dial setting, and curve type. The goal is to reduce the total working time of primary relays while maintaining selectivity and shortening the discrimination time between primary and backup relays. The suggested MGWO technique is evaluated on the IEEE 8 bus system with two scenarios and compared to other optimization approaches. The results reveal that MGWO outperforms previous algorithms, achieving improvements in the objective function ranging from 5.52% to 58.19%. Additionally, the DOCR settings created by MGWO are evaluated using ETAP software to assure compliance with operational requirements and prevent violations of DOCR coordination.Keywords: Directional Overcurrent Relay Coordination, Grey Wolf Optimization, Multiple Curves, Pickup Current, Time Dial Setting.
Optimization of Hardness Improvement of Bucket Wheel Excavator (BWE) Trackplate Bushing Material Based on the Taguchi Method Hendryanto, Refdinal Latif; Hendryanto, Refaldy Yusuf; Arifin, Amir
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.33221

Abstract

trackplate’s bushing material made of AISI 4340 steel through heat treatment designed using the Taguchi method. The heat treatment process includes several key parameters, namely austenitizing temperature, austenitizing time, quenching media, and tempering time, which are systematically evaluated to maximize the increase in material hardness. The experimental design employs the Taguchi method with an L9 orthogonal array to determine the optimal combination of parameters from four factors and three levels of variables, including austenitizing temperatures of 870°C, 900°C, and 925°C; austenitizing times of 25, 30, and 35 minutes; quenching media of water, salt water, and oil; and tempering times of 1.5, 2, and 2.5 hours. Hardness testing conducted using the Rockwell HRC scale shows that the optimal combination is achieved at an austenitizing temperature of 925°C, an austenitizing time of 35 minutes, salt water as the quenching media, and a tempering time of 2.5 hours. This combination successfully increases the material hardness to 56.9 HRC, representing an increase of 67.84% from the initial hardness of 33.9 HRC. S/N ratio analysis reveals that quenching media and austenitizing temperature significantly impact the increase in hardness. At the same time, tempering time plays a role in stabilizing the martensitic structure without reducing the achieved hardness. The results of this study demonstrate that the Taguchi method effectively determines the optimal heat treatment parameters for bushing materials, thus producing material hardness that meets the required technical specifications.Keywords: AISI 4340 Steel, bushing, hardness improvement, heat treatment, Taguchi method, S/N ratio analysis.
Comparative Study of Oil and Gas Products with Manual Formula on a Laboratory Scale in Ensuring Production System Information Haqi, Calista Aulia; Aulia Nuha, Maharani Pramesty; Zaydan, Mulki Maulana; Ryanthika, Nadira Annisa; Bayu Nugraha, Reo Samtalira; Verinza, Oksil
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.33545

Abstract

This study explores the enhancement of oil and gas products through laboratory-scale manual formulations to address quality, efficiency, and environmental sustainability challenges. It focuses on biodiesel blends (B10, B30, and B50) and used lubricants treated with citric acid to reduce heavy metal content. The research identifies key functional components in biodiesel that improve combustion efficiency and lower greenhouse gas emissions. Simultaneously, the addition of citric acid in used lubricants aims to reduce metal concentrations, enhancing the potential for recycling and reuse. The results indicate that increasing biodiesel content significantly improves environmental performance and reduces reliance on fossil fuels, though water and sulfur content require strict monitoring to maintain product stability. In used lubricants, the application of citric acid demonstrates varied effectiveness, reducing specific metals like magnesium but increasing others such as calcium and zinc, posing challenges for consistent metal reduction. This study concludes that combining manual formulations and chemical treatments provides valuable insights into optimizing oil and gas products. It emphasizes the need for careful control of component levels to meet quality standards and environmental regulations. The findings suggest that refining the application of citric acid could further enhance its effectiveness in minimizing harmful metal concentrations, supporting sustainable and eco-friendly practices in the oil and gas sector.
Product Control Management Information System Using Eoq Method at Toko Herbamart Jafar, Harun Al; Fauziah, Fauziah; Iskandar, Agus
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.28652

Abstract

This research focuses on product inventory management at Herbamart Store, a wholesale herbal medicine purchase center in South Jakarta. Currently, inventory control is done manually, which is not optimal and results in losses. The purpose of this research is to create a product inventory control management information system with the Economic Quantity Order (EOQ) method and a web-based application with an early warning system. The results showed that the optimal order quantity for various products can be determined by the EOQ method. The store also needs to provide safety stock and place a reorder when the remaining inventory reaches a certain amount. This research successfully designed a product control information system application using the web-based EOQ method tailored for Herbamart Stores. This application is designed to assist Herbamart Stores in optimizing their business processes, improving efficiency, and increasing profitability. This application can also help minimize the total cost of ordering and storing goods, thus contributing to reducing operational costs and improving overall efficiency. Keywords: Inventory Management, Economic Order Quantity (EOQ), Management Information System, Early Warning System, Toko Herbamart.
Analysis of Factors in Decision Making of Ex-Rubber Farmers Regarding the Conversion of Rubber Plantations to Oil Palm (Case Study in Muara Jalai Village, Kampar Regency) Hamid, Ardiansyah; Wandana, Fajar Aga
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.31526

Abstract

Logging of rubber trees is increasingly being carried out by rubber farmers in Muara Jalai Village. In fact, rubber plantations are one of the sources of community livelihoods that have long been practiced by some people. Seeing the rampant phenomenon of cutting down rubber trees in Muara Jalai Village, an in- depth study was conducted on the behavior of these ex-rubber farmers, to see how much influence the factors of rubber income, rubber maintenance and rubber sap production have on the decision to cut down rubber trees. For this reason, a questionnaire was distributed to ex-rubber farmers and a validity test was carried out on the questionnaire, the results showed that all statements from the questionnaire were valid to be used as a questionnaire. After the validity test, then proceed with the t test. The t test results show that the value of tcount> ttable for the three independent variables. It can be concluded that the independent variables of rubber income, rubber maintenance and rubber sap production affect the decision of rubber farmers to cut down rubber trees. In addition, the F test was also conducted. The results of the F test show the value of Fcount> Ftable. It can be concluded that the three independent variables all affect the decision of rubber farmers in cutting down rubber trees.
The Impact of WebQual 4.0 Method Variables on the Quality service of Education Sitorus, Tosty Maylangi; Purba, Humiras Hardi; Aisyah, Siti
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.34011

Abstract

The main focus of this study is educational institutions with results showing variables and indicators affecting customer satisfaction. A systematic literature review was used in this study, covering Indonesian national journals from 2017 to 2021 at various educational institutions. The review explores common variables used in website quality assessment using WebQual 4.0 and explores gaps within each theme. The results show variables and indicators affecting customer satisfaction. Society 5.0 (society 5.0), is indispensable in the development of the Industry 4.0 revolution where by using WebQual 4.0 the psychological variables that are part of society 5.0 can be one part of the measurement variables from the human aspect in the use of technology. Basically, the measurement object can vary and can be combined with various other service quality measurement methods in educational institutions. So that the measurement results and also the improvement suggestions obtained can be applied directly.
Measuring Usability using USE Questionnaire in the MyTelkomsel Application Salsabila, Alya Putri; Ibrahim Anwar, Setiady; Mulia Lasardi, Ekky; Fami, Amata; RG Barus, Irma
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.29652

Abstract

The MyTelkomsel application is one of Indonesia's most popular cellular provider applications. Telkomsel established it to provide convenience for customers in managing their telecommunications services. As the MyTelkomsel application runs, few users complain about the shortcomings of the MyTelkomsel application features, which are considered less than optimal, such as a very long application response, an unsatisfactory UI display, and so on. Therefore, the author researched usability calculations on the MyTelkomsel application through the USE Questionnaire approach with the main focus on the five usability measurement criteria: Learnability, Efficiency, memorability, errors, and Satisfaction. This study used SPSS and Google Spreadsheets to analyze these variables, with 35 respondents. The results showed that the five criteria used in measuring Usability obtained results with a feasibility level for the Learnability aspect of 83.71%, Efficiency of 81.71%, and Satisfaction of 81.28% with a very feasible category. Memorability aspects amounted to 77.14%, and Errors amounted to 72%, with a decent category. The overall usability analysis results obtained a percentage value of 79.17% with a decent category.

Page 54 of 61 | Total Record : 607

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