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Jurnal Teknik
Published by Universitas Negeri Gorontalo
ISSN : 16936191     EISSN : 27157660     DOI : https://doi.org/10.37031/jt
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Teknik (JT) is a peer-reviewed journal published by Faculty of Engineering, State University of Gorontalo. JT is published two times annually, in June and December. JT provides a place for academics, researchers, and practitioners to publish scientific articles. The scope of the articles listed in this journal is related to various topics such as Civil Engineering, Electrical Engineering, Informatics Engineering, Craft Engineering, Architecture, Industrial Engineering, Mechanical Engineering, Engineering Education, and other related engineering fields.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 142 Documents
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Karakteristik Beton Dengan Menggunakan Limbah Kaca Sebagai Bahan Penganti Sebagian Pasir Kadarningsih, Rahmani Kadarningsih; Uwente, Fajar; Utama, Komang Arya; Bahsuan, Rifadli; Usman, Sartika Dewi
Jurnal Teknik Vol 23 No 2 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i2.717

Abstract

Glass waste is a non-biodegradable material, so it must be processed or reused. Using glass waste as a substitute for sand in concrete can be an alternative use of glass waste. Furthermore, glass also contains silica (SiO2), which acts as a pozzolan that binds, making it suitable for use as a concrete mixture. The use of glass waste as a sand substitute is crucial for achieving a gradation that meets the requirements. This study used a concrete compression strength of 25 MPa. The percentage of sand substituted by glass waste was 0%, 7.5%, 10%, 12.5%, and 15%. The concrete volumetric weight increased proportionally with the increase in the glass waste percentage. This indicates that the use of glass waste increases the concrete density. This density is correlated with the concrete compressive strength. The results of the test analysis showed that the increase in volumetric weight was proportional to the increase in concrete compressive strength. This indicates that glass waste material has good fine aggregate properties and can be used as a partial sand replacement. This is because the glass waste material has a gradation that meets the requirements and contains silica which has pozzolanic properties so it can bind.
Pengembangan Nutri-Bumil dengan Model APPED Berbasis Website Terintegrasi Chatbot sapina, Sapina; Mashoedah; Dwi Kurniawan, Prabowo; Arifin, Fatchul; Syaiful Rijal, Bait
Jurnal Teknik Vol 23 No 2 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i2.731

Abstract

This study aims to develop the Nutri-Bumil System, a web-based nutrition intake monitoring service for pregnant women integrated with a chatbot. The system development employed a Research and Development (R&D) approach using the APPED model (Analysis, Planning, Production, Evaluation, and Distribution). The research instruments included validation by content experts and media experts using a 4-point Likert scale, which was converted into percentages to assess the system’s feasibility based on the ISO/IEC 25010 software quality standards in the aspects of Usability, Functional Suitability, and Performance Efficiency. The validation results showed that content experts rated the system at 80.71% for Usability, 82.65% for Functional Suitability, and 76.78% for Performance Efficiency, which fall into the categories of Feasible and Fairly Feasible. Meanwhile, media experts provided scores of 80%, 85.41%, and 87.5%, all of which are categorized as Feasible. These findings indicate that the developed Nutri-Bumil system meets the software quality aspects in terms of ease of use, functional suitability, and performance efficiency. Overall, the system is declared Feasible for use as an adaptive, accurate, and efficient digital nutrition service supporting the needs of pregnant women and nutrition professionals.

Page 15 of 15 | Total Record : 142

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