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Tech : Journal of Engineering Science
Published by Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia
ISSN : -     EISSN : 31097790     DOI : https://doi.org/10.69836/tech
Core Subject : Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering
Tech : Journal of Engineering Science (E-ISSN 3109-7790) is a journal published by Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia with the aim of developing research that focuses on the field of engineering. Focus and Scope: Civil and Infrastructure Engineering, Mechanical Engineering, Electrical and Electronics Engineering, Industrial Engineering, Informatics and Computer Engineering, Chemical and Process Engineering, Environmental Engineering, Materials and Metallurgical Engineering, Aviation and Aerospace Engineering, Marine and Shipbuilding Engineering
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 18 Documents
 1   2 
Perancangan dan Implementasi Sistem Informasi Rekam Medis Elektronik untuk Meningkatkan Efisiensi Pelayanan Kesehatan Yuniana Cahyaningrum; Nikmah Ayu Ramadhani Amir; Undari Nurkalis
Tech : Journal of Engineering Science Vol 1 No 2 (2025): Inovasi dan Aplikasi Terbaru dalam Teknik dan Sains Terapan untuk Mendukung Produ
Publisher : Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69836/tech.v1i2.517

Abstract

Medical records are a crucial component of healthcare services, but manual recording systems often present challenges such as delayed data access, information redundancy, and the risk of document loss. This study aims to design and implement an electronic medical records (EMR) information system that can improve healthcare service efficiency. Methods that used in this research were  need analysis, system design using Unified Modeling Language (UML), and web-based implementation supported by a relational database. The results show that the EMR system can accelerate patient data access, minimize duplication of records, and improve the accuracy of medical documentation. A trial of the system at a primary healthcare facility demonstrated 35% increase in service efficiency compared to the manual method. Therefore, the implementation of EMR contributes significantly to improve healthcare service quality and can be further developed through cloud and mobile application integration.
Design and Optimization of Sustainable Green Composites for High-Performance Applications Chiedu Ezeanyim Okechukwu; Charles Chikwendu Okpala; Somto Kenneth Onukwuli
Tech : Journal of Engineering Science Vol 1 No 2 (2025): Inovasi dan Aplikasi Terbaru dalam Teknik dan Sains Terapan untuk Mendukung Produ
Publisher : Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69836/tech.v1i2.526

Abstract

This study presents a data-driven framework for the design and optimization of next-generation sustainable green composites that are aimed at high-performance industrial applications. A hybrid dataset that comprises 180 experimental records of natural fiber-reinforced biopolymer composites was analyzed using Machine Learning (ML) algorithms, including Random Forest Regression (R² = 0.962), Artificial Neural Network (R² = 0.948), and Support Vector Regression (R² = 0.921). Feature importance analysis identified fiber volume fraction (38.5%), filler type (24.7%), and matrix viscosity (18.9%) as the most influential variables that govern tensile strength and biodegradability. Multi-objective optimization with the application of NSGA-II achieved a tensile strength of 127 MPa and biodegradability of 73%, which represent a 19.6% increase in mechanical performance and a 42% improvement in environmental compatibility when compared to conventional composites. Life-cycle assessment revealed significant sustainability advantages: embodied energy reduced by 33.8% (from 68 MJ/kg to 45 MJ/kg), carbon footprint lowered by 52% (from 2.5 kg CO₂-eq/kg to 1.2 kg CO₂-eq/kg), and end-of-life recyclability enhanced from 42% to 78%. Furthermore, the optimized composite achieved a processing temperature reduction of 21.4% and a 20.5% lower material cost. These results confirm that the integration of ML-driven prediction and optimization with green composite fabrication can accelerate sustainable materials development, reduce resource waste by up to 60%, and provide a replicable model for digital twin-assisted design. The proposed framework demonstrates clear potential for adoption in automotive, aerospace, and packaging sectors, where lightweight, recyclability, and environmental performance are critical.
Conceptual Computational Modeling of Genetic and Neurochemical Traits of Social Outcasts in the Series Wednesday Dede Ramadhan; M. Ahleyani; Hegi Aulia Azzahra Putri; Mohammad Fatoni; Syifa Aulia
Tech : Journal of Engineering Science Vol 1 No 2 (2025): Inovasi dan Aplikasi Terbaru dalam Teknik dan Sains Terapan untuk Mendukung Produ
Publisher : Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69836/tech.v1i2.529

Abstract

This study explores the representation of genetic and neurochemical traits associated with social outcast groups as depicted in the television series Wednesday, using a conceptual computational modeling framework. Rather than pursuing empirical biological validation, the research adopts speculative and educational modeling approaches inspired by systems biology, neurochemistry, and computational neuroscience to interpret narrative patterns related to marginalization, emotional regulation, and behavioral divergence. Conceptual models are constructed by mapping fictional character traits to simplified genetic markers, neurotransmitter interactions, and network-based behavioral dynamics. The study aims to demonstrate how computational thinking can be employed as an interdisciplinary analytical tool for science communication, critical media analysis, and pedagogical innovation. Limitations of the study include the non-empirical nature of the data and the reliance on narrative abstraction. Nevertheless, the findings highlight the potential of computational frameworks to bridge popular culture and scientific reasoning in an accessible and ethically reflective manner.
Studi Perspektif dan Sikap Masyarakat pada Kawasan Pemukiman Terdampak Industri di Wiyoro Kidul, Banguntapan, Bantul Farayska Rosiana Sari; Dinda Ainaya Putri; Salsabila Nasywa Ghanis Iswanto; Amanda Yosy Aurora; Pradipta Arya Yudistira
Tech : Journal of Engineering Science Vol 2 No 1 (2026): Engineering and communication
Publisher : Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69836/tech.v2i1.591

Abstract

Industrial activities located near residential areas often generate both economic benefits and environmental challenges for surrounding communities. This study aims to explore the perspectives and attitudes of residents living in Wiyoro Kidul, Banguntapan, Bantul, toward the presence of nearby large-scale and domestic industries. Using a qualitative approach, data were collected through purposive sampling involving two groups of respondents: residents who operate or work in local industries and those who do not. Data were obtained through interviews and field observations to understand the perceived environmental, social, and economic impacts. The results show that industries contribute positively by increasing employment opportunities and supporting local economic growth. However, residents also reported significant negative impacts, including air pollution, noise disturbances, unpleasant odors from waste processing activities, and water contamination caused by industrial and home-industry effluents such as tempe wastewater. These environmental pressures have shaped diverse community perceptions, ranging from acceptance due to economic dependence to concerns over long-term environmental and health risks. Overall, community attitudes tend to be adaptive, with residents willing to accept industrial presence as long as companies demonstrate responsibility by implementing proper pollution control, improving operational management, and maintaining good communication with the community.
Analisis Uji Beda Rata-Rata Curah Hujan Tahunan Di Stasiun Aseman Dan Sumerta Pada Das Tukad Mati Desfinta, Tiara Dwi
Tech : Journal of Engineering Science Vol 2 No 1 (2026): Engineering and communication
Publisher : Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69836/tech.v2i1.698

Abstract

This study aims to analyze and compare the average annual rainfall at Aseman Station and Sumerta station, which are located within the Tukad Mati River Basin (DAS). This comparisob is crucial to determine the extent to which data from both stations can be used comparatively and consistently in regional hydrological planning, such as evaluating water availability or calculating flood discharge. The method used in this study is quantitative descriptive, with annual rainfall data for the late 10 years (2014-2023). Statistical analysis was performed using SPSS (Statistical Package for the Social Sciences) software. The initial step of the analysis was the Shapiro-Wilk Normality Test, which showed that the average annual rainfall data at both stasion was normally distributed (Aseman Station Sig.=0.220; Sumertas station Sig.=0.578). Since the normality assumption was met, the analysis continued using a parametric statistical test, namely the Paired Sampel T-Test. Statistically, the average rainfall at the Aseman station is 1.77530 mm, while at the Sumerta station it is 1.5674 mm. The results of the Paired Samples T-Test show a Significance value (Sig.2-tailed) of 0.005. Because the value 0.005 is smaller than 0.05. This study proves that there is a statisticaly significant difference in the average annual rainfall between the Aseman station and the Sumerta station in the Tukad Mati watershed.
Optimization System of Non-Medical Warehouse at UOBK Regional Hospital (A Quantitative Validation using WinQSB Software) Prabawati, Nurilia Fitri
Tech : Journal of Engineering Science Vol 2 No 1 (2026): Engineering and communication
Publisher : Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69836/tech.v2i1.720

Abstract

The previous study at UOBK Regional Hospital provided many informative suggestions, but still did not achieve the main objective and didn’t show the quantitative validation. The previous study only showed the perspective by grouping the similar materials without any calculation for validation. However, this study provided a quantitative validation using the CRAFT algorithm with winQSB software in the form of a functional layout. Data was obtained from the previous study then it was calculated to be the input data for this study. By considering the field study and made some adjustment, it was acceptable using the previous study information not only to calculate the cost but also to calculate the layout coordinate. So this study integrated two previous studies to analyze how the outcome of layout recommendation from the previous study compared with its initial layout (raw data). The total material handling cost using winQSB calculated that the initial layout value was 25360.50. The optimum value of this initial layout was 25070.38. The results supported the layout recommendation on the previous study by adding admin desk and grouping the similar materials. This was demonstrated by the optimum value of layout recommendation, which was 19195.23 using the two-way exchange option. This study implied that the layout recommendation reduced until 77% of total material handling cost and demonstrated better value than its initial layout.
Analisis Implementasi Rantai Pasokan Halal di Almaz Fried Chicken Cabang Condet Darmawan, Rachmat
Tech : Journal of Engineering Science Vol 2 No 1 (2026): Engineering and communication
Publisher : Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69836/tech.v2i1.697

Abstract

This study aims to analyze the implementation of the Halal Supply Chain (HSC) at Almaaz Fried Chicken Outlet Condet Branch and its conformity with the Halal Product Assurance System (SJPH) criteria established by the Halal Product Assurance Organizing Agency (BPJPH). The research uses a qualitative method with data collected through in-depth interviews with the Outlet Manager. The interview results were compared with BPJPH regulations, including the Minister of Religious Affairs Regulation (PMA) No. 26 of 2019 on Halal Product Assurance Implementation and the Decree of the Head of BPJPH on SJPH Criteria. The findings indicate that the outlet maintains strict halal standards, starting from accepting pre-certified raw materials from the center to the production process, emphasizing the motto "Clean as you go". Specific procedures, such as monitoring chiller temperatures 1–4°C and warmer temperatures 60–100°C, and regular internal audits, demonstrate a high degree of operational compliance with SJPH principles.
Polypropylene Plastic Cup Tensile Strength Optimization in Injection Molding from the Mold Variables Using Response Surface Methodology Chukwunedum, Ogochukwu Chinedum; Nelson Obinna Ubani; Jude Ezechi Dara
Tech : Journal of Engineering Science Vol 2 No 1 (2026): Engineering and communication
Publisher : Yayasan Penelitian dan Pengabdian Masyarakat Sisi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69836/tech.v2i1.745

Abstract

Injection molding demands careful control of processing conditions to achieve durable plastic products. In polypropylene cup production, improper mold settings can reduce tensile strength, resulting in cracks, fractures, and product failure during handling, transportation, and use. Such defects increase material wastage and reduce manufacturing profitability. This study therefore aimed to develop an optimization model for maximizing the tensile strength of a polypropylene plastic cup using Response Surface Methodology. Injection pressure, injection speed, mold temperature, and cooling time were considered as process variables, while tensile strength served as the response variable. A Design of Experiments framework based on Response Surface Methodology was applied through iterative trial moldings with systematic variation of input parameters. Statistical evaluation using analysis of variance was conducted to determine model adequacy and factor significance. The results identified optimal settings of 95 MPa injection pressure, 50 mm/s injection speed, 57.27 °C mold temperature, and 15 s cooling time, yielding a maximum tensile strength of 31.44 MPa. The selected quadratic model was significant, with a coefficient of determination of 95.97 percent, indicating strong agreement between predicted and experimental results. Injection pressure showed the most significant effect on tensile strength, including its quadratic term. The study demonstrates that systematic parameter optimization enhances product strength, minimizes defects, and improves production efficiency and profitability in plastic cup manufacturing

Page 2 of 2 | Total Record : 18

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