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G-Tech : Jurnal Teknologi Terapan
Published by Universitas Islam Raden Rahmat Malang
ISSN : 25808737     EISSN : 2623064X     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering
Jurnal G-Tech bertujuan untuk mempublikasikan hasil penelitian asli dan review hasil penelitian tentang teknologi dan terapan pada ruang lingkup keteknikan meliputi teknik mesin, teknik elektro, teknik informatika, sistem informasi, agroteknologi, dll.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 897 Documents
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Utilization of Spirulina (Arthrospira Plantesis) in the Substitution of Taro Flour and Mocaf Flour in Dry Noodles as an Anti-Stunting Food Innovation Adhisty Elcahyani; Siswi Astuti
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6213

Abstract

Stunting is a chronic nutritional problem that affects children's physical and cognitive development. This research aims to develop dry noodles made from taro flour, mocaf and spirulina as an alternative nutritious food for the prevention of stunting. Variations in the composition of taro flour and mocaf (60%:40%) with the addition of spirulina (2%) produced the best product with a protein content of 10.72%, carbohydrate content of 74.91% and moisture content of 6% according to SNI standards for dry noodles. Organoleptic tests showed that the sample was the most preferred by the panelists based on taste, texture, aroma, colour and crispness. Spirulina fortification contributed significantly to increasing the protein content and giving the product its characteristic green colour. This innovation is expected to help meet the nutritional needs of stunted children, support local food sustainability and reduce dependence on imported ingredients
Study on Flood Control of the Sumber Pinang River in Sidogiri, Pasuruan Regency through River Normalization, Levees, and Parapet Walls Imroni Arif; Vita Ayu Kusuma Dewi
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6216

Abstract

The Sumber Pinang River in Pasuruan Regency frequently experiences flooding due to its insufficient capacity. This study aims to analyze flood control measures using hydrological and hydraulic approaches with the HEC-RAS 6.4.1 software. The data used include maximum rainfall, river cross-section profiles, and land use. The planned flood discharge was calculated using the Nakayasu Synthetic Unit Hydrograph (SUH) method, resulting in a peak discharge of 442.823 m³/s. The analysis results indicate that 81% of the river cross-sections are prone to overflow. Proposed control measures include river normalization and the construction of levees and parapet walls. River normalization is planned for the entire river body, while levees and parapet walls are proposed at critical points to enhance the river's capacity. This study provides recommendations for more effective flood control planning in the future.
Proposed Improvements to Production Facility Layout Using ARC and ARD at Home Industry Aurora Official Muhammad Hasbi Ash Shiddiqi; Elly Ismiyah; Yanuar Pandu Negoro
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6219

Abstract

Home Industry Aurora Official, which is engaged in the manufacture of pillows and baby mattresses, faces problems related to inefficient facility layouts in the workflow. Suboptimal layouts result in excessive waste of distance, which affects production time and reduces operational efficiency. This study aims to design a more efficient facility layout by minimizing the distance between production processes. The methods used in this study are the ARC (Activity Relationship Chart) and ARD (Activity Relationship Diagram) methods, which can help design layouts based on the relationships between production activities and determine the relationships between activities based on their priority level of proximity. Based on the analysis results, the initial layout produces a total distance of 940 meters, while the two alternative proposed layouts produce distances of 310 meters and 405 meters respectively. Of the two proposed layouts, proposed layout 1 was chosen as the proposed layout for the company with a total distance of 310 meters, with a decrease of 67% from 100% of the total distance of the initial layout. The results of this study indicate that the application of proposed layout 1 can improve workflow efficiency and reduce waste time in the production process.
Determining Order Size on Joint Inventory of Single Buyer and Seller With Fuzzy Demand Nasa Fadiyah; Said Salim Dahda
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6232

Abstract

Every company generally has problems about the company's inventory control system. The ability to meet demand with the right amount, time and location. Common models such as EOQ / EPQ are often used in inventory planning and control. The assumption of using this model requires cost and demand data that must be known and fixed. So that in solving inventory system problems sometimes there is a lack of information about similar data. So the development is needed to adjust to the conditions and industrial environment. One is an integration model between suppliers and buyers that results in lot sizes that minimize total inventory costs. Then it can be done an integration between suppliers and buyers by using fuzzy. This Model is designed to overcome the uncertainty of demand by describing it in the form of triangular fuzzy numbers. The results of the research using this method and involving an iterative approach obtained optimal results where the production quantity was 57,07 units and the delivery frequency was 3 times so that it could minimize the total inventory cost with a total cost of $242,05.
Optimization of the Development Strategy for the Sidodadi Small Scale Tofu Industry in Tinalan, Kediri, to Enhance Competitiveness Dedy Kunhadi; Dyah Pelitawati; Mira Gayatri Kartika; Ony Kurniawati
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6238

Abstract

The problems faced by Sidodadi Kediri tofu small industry are the tight competition from similar products, lack of innovation of the product process, and lack of understanding of effective marketing techniques, this study aims to provide policy recommendations that can support the development of Sidodadi tofu small industry in an effort to improve competitiveness. The data collection process uses the delphi method, where the delphi method is a technique used to collect and analyze opinions from a group of experts or experts who are in accordance with the topic under study. The main purpose of this method is to reach an agreement on the development of the Sidodadi Tofu small industry to improve competitiveness. The approach used to solve this problem includes analysis using the IFE Matrix, EFE Matrix, IE Matrix, SWOT, and QSPM. The results of this study emphasize the importance of quality-based product innovation that can increase customer satisfaction and create a positive reputation. In addition, diversification of distribution channels is key to expanding market reach, by utilizing online sales and partnerships with various restaurants. By implementing these strategies, the Sidodadi Tofu industry is expected to improve its performance, competitiveness, and business sustainability in the future.
Usability Evaluation of Sistem Informasi Teknik Industri (SITI) Using Performance Measurement Theresia Venesa Silalahi; Sigit Rahmat Rizalmi; Ahmad Jamil
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6252

Abstract

Sistem Informasi Teknik Industri (SITI) is a web application developed by the Industrial Engineering Study Program, Kalimantan Institute of Technology, for interaction media between lecturers and students in Kerja Praktek (KP) and Tugas Akhir (TA). In the digital era, information systems play an important role in increasing efficiency and effectiveness in the field of education. This study aims to evaluate the usability of SITI using the Performance Measurement method, namely in the aspects of effectiveness and efficiency. The evaluation results showed that SITI had a very good level of effectiveness, with a task completion rate of 81.25% for lecturers and 81.82% for students. The average error rate reached 21.25% for lecturers and 9.95% for students, especially in the KP and TA guidance filling feature. However, the efficiency still needs to be improved, with a time-based efficiency of 0.09 goals/second for lecturers and 0.038 goals/second for students, as well as an overall relative efficiency of 67.03% for lecturers and 83.1% for students. SITI is effective in supporting academic interaction but needs improvements to features that have a high failure rate to improve efficiency and user experience.
COMPARATIVE ANALYSIS TO PREDICT READING LITERACY BASED ON PISA 2022 USING GRADIENT BOOSTED DECISION TREES AND EXTREME GRADIENT BOOSTING Hary Susanto; Ema Utami
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6257

Abstract

Reading is a fundamental skill essential for interdisciplinary understanding and serves as a crucial indikator of a nation’s educational quality. PISA provides an international evaluation of students' reading literacy across various countries, including Indonesia. This study compares the performance of Gradient Boosting Decision Trees (GBDT) and Extreme Gradient Boosting (XGBoost), two widely recognized machine learning algorithms for predicting reading literacy, utilizing PISA 2022 data from 12.853 Indonesian students and 59 variables from the Student Questionnaire Data File. GBDT achieved R² of 0.5106, with optimal parameters (n_estimators = 150, learning_rate = 0.2, max_depth = 3, subsample = 0.9). XGBoost reached a higher R² of 0.5247, with parameters (n_estimators = 1000, learning_rate = 0.01, max_depth = 7, colsample_bytree = 0.3, min_child_weight = 20, gamma = 1, alpha = 0), indicating XGBoost's superior performance in predicting reading literacy. Further analysis revealed that the most significant variables in the GBDT model included students' access to technology at home, extracurricular creative activities, socioeconomic status, school involvement in sustainable development, and problem-solving skills. In contrast, significant variables in the XGBoost model included family support, socioeconomic status, school belongingness, family environment's effectiveness in fostering creativity, and student imagination.
The Effect of Addition of Sugarcane Ash Waste and Low Density Polyethylene Plastic on the Characteristics of Laston AC-WC Mixture Heru Prasetyo Nugroho; Heri Sujatmiko; Hari Pranoto
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6271

Abstract

Bagasse ash has pozzolanic properties which contain chemical compounds in the form of Silica (SiO2) and act as fillers and Low-Density Polyethylene (LDPE) plastic has the same plastomer properties as asphalt thermoplastic properties. Both of these wastes can be used as substitute materials for the Laston AC-WC mixture. This exploration aims to determine the effect of adding sugarcane bagasse ash and LDPE plastic on the characteristics of the Laston AC-WC mixture. The variations in the levels of bagasse ash added were 25%, 50%, 75%, and 100% of the filler weight and LDPE 5%, 5.55%, and 6% of the total asphalt weight. After the Marshall test was carried out, the Laston AC-WC mixture with the addition of bagasse ash and LDPE could increase the stability value compared to the asphalt mixture without the addition of waste. The optimum asphalt content value is found in a mixture of 75% bagasse ash and 6% LDPE content because it has the highest stability value and other Marshall test values ​​are in accordance with the 2019 Hot Asphalt Mix Design and Implementation Guidelines for Utilizing Plastic Waste.
Managing Inventory in Response to Varying Demand at Retail Store X to Reduce Stockouts Devina Kristalia Irawan; Fransiska Hernina Puspitasari; Ika Murti Kristiyani
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6361

Abstract

Both inventory shortages and excess inventory are among the issues encountered in inventory management. Lost sales are one of the impacts caused by inventory shortages. Retail Store X often experiences lost sales due to inventory shortages, such as cigarettes. Fluctuating demand and supplier terms make it difficult for this store to determine the order quantity sent to the supplier. Therefore, this research aims not only to minimize the number of stockouts but also complying with the supplier's requirement which is often disregarded in other research. The number of cigarettes that must be ordered must meet the minimum purchase under the agreed cooperation contract and the budget of Retail Store X that has been determined. This problem is solved using the periodic review system method, which relies on three parameters for the decision-making. This method calculates the order quantity for 10 cigarette products and then simulates over the next month to determine the number of stockouts that occur. Based on the results, one stockout incident was found for Tawang cigarettes amounting to two packs. Besides, the supplier requirement condition from the second supplier is also met and the purchase budget is fulfilled, which is below Rp450,000.00.
Designing an Integrated BSC and IPMS Model Performance Optimization Nida An Khofiyah; Hasyrani Windyatri
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6369

Abstract

This study aims to design a performance measurement model by integrating two performance measurement methods, namely the Balanced Scorecard (BSC) and Integrated Performance Measurement Systems (IPMS), to optimize the company's performance. This approach is expected to provide a comprehensive view of the company's performance by combining financial and non-financial indicators and ensuring strategic alignment. The research approach used is descriptive-analytical (literture review), which aims to provide an overview of the performance measurement model design by integrating the Balanced Scorecard (BSC) and Integrated Performance Measurement Systems (IPMS). The study will identify how the integration of these two systems can improve productivity and operational effectiveness. The expected outcome is sustainable performance improvement and productivity enhancement through the implementation of a holistic and integrated performance measurement framework. The novelty of this research lies in the absence of a performance measurement model that combines both methods to measure company performance. The research results in a performance measurement model design that can be implemented to optimize performance in an industry.

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