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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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Study on the Influence of Weather Factors on Construction Delays of Retaining Walls in Market Projects Junita Eka Susanti
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6698

Abstract

Weather is an external factor that significantly influences the implementation of construction projects, especially in open environments. This research aims to evaluate the impact of weather, particularly rainfall, on delays in retaining wall construction projects in market areas. The study employs statistical analysis of historical weather data, an assessment of work progress realization, and interviews with project implementers. The analysis reveals that rainfall, both drizzle and heavy rain, affects work productivity differently. During the project timeline, rain occurred for 17 days in October (48 hours), 21 days in November (74 hours), and 7 days in December (20 hours). In the first month, progress exceeded the planned schedule with a positive deviation of 4.25%. However, in the second month, adverse weather conditions and other technical factors contributed to a negative deviation of 6.88%. Despite this setback, work progress recovered in the third month, ultimately reaching the targeted 100% completion. Regression analysis confirms that heavy rain significantly hampers construction activities more than drizzle. Significant tasks, such as the construction of retaining walls, come to a complete halt during heavy rain, whereas drizzle still allows work to proceed, albeit with reduced productivity. These findings underscore the necessity of integrating weather risk assessments into project planning to develop more resilient scheduling strategies and minimize potential delays.
Perencanaan Perawatan Mesin Conveyor Belt Menggunakan Metode FMEA dan RCM di PT. SBM Fery Kurniawan; Akhmad Wasiur Rizqi
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6707

Abstract

PT. SBM is a bulk material handling company that focuses on conveyor maintenance and surface protection. The conveyor belt machine operates 24 hours non-stop resulting in damage to each component which disrupts the production process. So that an analysis is carried out using the FMEA method with the results of the calculation of the RPN value showing that the belt component gets an RPN value of 180, gear of 150, idler roller of 80, and chain of 80. RCM method to determine an effective maintenance strategy with the results of a new activity schedule, namely belt components must be checked and maintained about 4.36 hours/day once and idler rollers about 7.08 hours/day once by performing scheduled on-condition task maintenance activities. Gear must be checked and maintained about 4.12 hours/day once and chain about 0.23 hours/day once by performing scheduled discard task maintenance activities. By applying the results of this research in the company, it can determine a more effective and data-based maintenance schedule with increased machine reliability, maintenance schedule optimization, cost and operational efficiency, and implementation in the manufacturing industry. It is recommended that companies implement IoT-based monitoring systems, conduct training, and establish maintenance standards with periodic evaluation.
Analisis Postur Kerja di UKM Ismail Ali Menggunakan Metode NBM, REBA, dan OWAS Muhammad Abdul Basit; Elly Ismiyah
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6727

Abstract

In Gresik Regency, there are SMEs such as Ismail Ali that sell products such as cement. In lifting and arranging cement, manual material handling is carried out. As a result, workers are at risk of back injury whose activities are not ergonomically appropriate, musculoskeletal disorders can arise. From these activities, the NBM analysis was carried out to determine the source of pain obtained on a Likter scale of 3 in the high risk level, the REBA method by involving the angle of the worker's posture obtained a score of 11 in the very high category, and the OWAS method by examining the effect of the load on the posture obtained a score of 3 in the high category. This research shows that lifting and arranging cement in Ismail Ali SMEs has a high risk of musculoskeletal disorders, seriously affecting health and work productivity. The results of the analysis using the NBM, REBA, and OWAS methods, found that non-ergonomic work positions cause serious injuries if not addressed immediately. Therefore, industries need to implement corrective measures such as scheduled breaks, stretching, improved work postures, worker rotation to reduce the risk of injury, increase efficiency, and prevent human error due to fatigue.
Perancangan Mesin Press Multifungsi Pencetak Cocopot Faadiyah Cheryl Rachelia; Masri Bin Ardin; Roni Suhartono
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6735

Abstract

Coconut fiber has properties that are durable, strong friction, not easily broken, waterproof, resistant to fungi and pests such as termites or rats. Because of this, coconut fiber can be used as handicraft products that have aesthetic value and high selling value. One of the products is cocopot or polybag replacement coconut fiber pot. At this time, the supporting tools in the cocopot production process are still rarely used, especially for MSMEs. To streamline the production process then made the design of multifunction press machine cocopot printer. The methods used in this design are data collection carried out by literature study and observation, making design sketches, making 2D and 3D designs using the Solidworks 2021 application, design validation, monitoring the tool manufacturing process, and evaluation. Cocopot multifunction printer press machine designed to have frame dimensions of 1180mm x 450mm x 745mm with frame material used is UNP iron measuring 80 x 40 x 5 mm. The resulting product is a coconut coir pot with a uniform thickness and is used instead of a polybag with a pot thickness of 1-2mm and is worth selling.This cocopot printing press machine has two different types of press working principles, namely by using a roller press to flatten coconut fiber and a printing press using molding that is driven using an electropneumatic system. The design of the machine is intended to form a cocopot with a tube shape measuring 120mm in diameter with a height of 140 mm.
Compressing Large Language Models (LLMs) using Knowledge Distillation for Optimizing Inference Time and Model Size Rachmad Imam Tarecha; Priska Choirina; Amalia Agung Septarina
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6749

Abstract

Large Language Models (LLMs) contain a vast number of parameters and are significantly large in size. For instance, the DeepSeek-V3 model consists of approximately 671 billion parameters and has a file size of up to 720GB. The sheer number of parameters in LLMs reflects their high complexity, which can serve as both an advantage and a drawback, particularly when deployed in environments with limited computational resources. This study focuses on compressing a custom-built lightweight model using knowledge distillation techniques applied to LLMs. The results indicate that the model’s parameters can be reduced by up to 94.18%, its file size by up to 71.00%, and its inference time by up to 1.13%. Notably, despite these reductions, the model remains capable of performing specialized tasks with satisfactory accuracy. This finding underscores the potential of knowledge distillation as an effective method for reducing model size while maintaining operational efficiency, particularly in scenarios where computational constraints lead to mismatched capabilities. Efficiency in knowledge distillation is achieved through a combination of model size reduction and the alignment of computational capacity with task-specific requirements.
Effect of Superior Varieties and Insecticides on Pest Control and Food Safety of Groundnut (Arachis hypogaea L.) Prihatin Prihatin; Nurul Wiridannisaa; Tamrin Abdullah
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6750

Abstract

Groundnut (Arachis hypogaea L.) is a vital protein source supporting nutrition and sustainable farming, yet its productivity in Indonesia remains low due to pests and poor cultivation.This study aims to evaluate the effectiveness of a combination of superior varieties and types of insecticides in suppressing pest populations and increasing yields. The research was conducted in Sambueja Village, Maros Regency, using a Randomized Group Design (RAK) with four treatments: A1 (local seed + deltamethrin chemical insecticide), A2 (local seed + bogenvil vegetable insecticide), B1 (Takar 2 + chemical insecticide), and B2 (Takar 2 + vegetable insecticide), each with three replications. Results indicated that treatment B1 gave the highest yields: plant height 45 cm, number of leaves >20, wet weight 287.42 g, and number of pods 286.93 per plant. Treatment B2 was also high: 261.98 g wet weight and 261.49 pods. Treatments with local varieties gave lower yields. The use of improved varieties such as Takar 2, especially in combination with effective insecticides, is proven to increase productivity. However, chemical insecticides risk leaving residues that impact natural enemies, health, and the environment. In contrast, plant-based insecticides, while slower, are an environmentally friendly alternative that supports sustainable and safe agriculture.
Impacts of Land-Use Change on Runoff Oyo Downstream Sub-Watershed, Bantul Regency, Special Region of Yogyakarta Anggi Hermawan; Oggi Heicqal Ardian
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6766

Abstract

Land use changes from year to year have a significant impact on several flood disasters in the Oyo Downstream River. The purpose of this study was to calculate the amount of surface runoff in the Oyo Downstream Sub-watershed. Runoff discharge can be approximated using an empirical equation, namely by using the rational method. The amount of Runoff in the Oyo Downstream Sub-watershed is determined based on rainfall data for the last 10 years, topographic conditions and land cover conditions in the Sub-watershed area. Based on Google satellite aerial photo images in 2007, 2010, and 2022, changes in land use in the Oyo Downstream Sub-watershed can be seen. The land cover type classification process uses the supervised periodic satellite imagery method, where the results of the classification of each type of land use can be seen in the percentage of land use changes. Based on the results of satellite image analysis, there has been a significant reduction in the area of ​​land cover in forests and trees, namely 28.4% from 2007 to 2023. In contrast to settlements and open land which experienced an increase of 40% and 60% respectively. The results of the calculation of direct runoff discharge in each land cover condition show that there was an increase of 11% from 2007 to 2010, and an increase of 15% from 2010 to 2022. This condition causes flooding in several locations in the Oyo Downstream Sub-Watershed area due to overflowing rivers during the rainy season. In addition, several locations also experience inundation due to poor drainage systems causing rainwater runoff to not be able to flow into the water body/river area.
Geographic Information System (GIS)-Based Road Damage Mapping in Google Earth for Village Infrastructure Planning Novia Ratnasari; Anisa Hudi Widaningrum; Anggraeni Hadi Pratiwi
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6774

Abstract

The quality of village infrastructure plays a vital role in improving community welfare through economic growth. Tuban Regency, with its diverse geographical features such as coastal areas and limestone hills, frequently experiences road damage that hinders accessibility and development. To address this issue, the local government promotes sustainable development strategies, particularly through road infrastructure improvements funded by the Village Fund Allocation (ADD) program. However, feasibility studies on road damage in Sumurjalak Village remain inefficient in terms of time and cost, and lack accuracy due to the absence of supporting digital data. This study proposes a novel approach by integrating Geographic Information Systems (GIS) with Google Earth technology to map and assess road damage. Unlike conventional manual surveys or paper-based documentation, this integration provides a more efficient, accurate, and visually interactive method of spatial analysis. Using the Action Research method, which consists of five stages problem identification, data collection, planning, implementation, and evaluation this study demonstrates that GIS-based mapping significantly enhances the efficiency and accuracy of infrastructure assessments. The resulting digital documentation can serve as a decision-support tool for stakeholders and offer a scalable and replicable model for rural infrastructure planning, representing a significant advancement over previous approaches.
Game Based Learning Using Construct for Basic English Vocabulary at Elementary School Students Akmal Perdana; Auzil Mustaqim Herman; Fiqih Hana Saputri; Eka Uliyanti Putri Br Bangun
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6784

Abstract

English basic vocabulary learning plays a very important role for elementary school students, as it serves as the main foundation in mastering language skills, including reading, writing, listening, and speaking.  Thus, this research is focused on development.  Basic English Vocabulary Education Based on Construct, which is an interactive learning method utilizing digital technology of educational games to increase the effectiveness for learning.  Construct, as a platform for developing educational games for students can understand basic English vocabulary in a more enjoyable and non-monotonous way.  This study applies the Multimedia Development Life Cycle (MDLC) method with a constructivist approach, which allows students not only to receive information passively but also to actively build their understanding through exploration, experimentation, and direct interaction with various elements in educational games.  Based on the feasibility assessment results, the satisfaction level of respondents obtained from the questionnaire reached 93% out of a total of 10 respondents. The construct based educational game is an effective tool for improving students' grasp of basic English vocabulary through educational game-based learning.
Identifikasi Kandungan Konsentrat Mineral Logam Pada Tailing Penambangan Emas Rakyat Noveriady Noveriady; Novalisae Novalisae; I Putu Putrawiyanta; Ferdinandus Ferdinandus
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6785

Abstract

Artisanal gold mining in the Kahayan River Basin (DAS Kahayan), Ramang Village, produces tailings that contain metallic minerals such as zircon (Zr), yet their management remains suboptimal. This study aims to identify the zircon content in the concentrate resulting from shaking table separation and to analyze the geological and hydrological factors influencing its distribution. The results show that zircon content in the tailings ranges from 0,002% to 0,112%. The highest concentration was found in the upstream area (Z1), while the lowest was in the downstream area (X1), indicating that river flow direction and tidal influences play a role in zircon particle distribution. The zircon identified is genetically linked to the weathering of granite rocks, particularly the Kapur Granite Formation and Sepauk Tonalite in the upstream region. These findings indicate that current small-scale gold mining practices remain inefficient, allowing zircon to be discarded in tailings. This study emphasizes the importance of improved tailings management through efficient containment systems, the potential for reprocessing, and continuous environmental monitoring to enhance resource utilization and reduce the ecological impact of traditional mining.

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