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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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Assessment of Passenger Satisfaction for Local Train Services on the Madiun–Solo Route Based on the Customer Satisfaction Index (CSI) Method Ipung Wisnu Triono; Hera Widyastuti
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8864

Abstract

Passenger satisfaction is an important indicator of service performance in public transportation, particularly for local railway services that support regional mobility. This study aims to evaluate passenger satisfaction with the local train operating on the Madiun–Solo route using the Customer Satisfaction Index (CSI) method. The research was conducted in the operational area of DAOP 7 Madiun and involved 250 passengers as respondents. Data were collected through field surveys using structured questionnaires that assessed six service dimensions: tangibles, reliability, responsiveness, assurance, empathy, and accessibility. The CSI analysis results indicate an overall satisfaction index of 69.50%, which falls within the “satisfied” category, suggesting that the service generally meets passenger expectations. Nevertheless, several service attributes, including service frequency, seating arrangement, ticketing convenience, and feeder transport availability, show relatively lower satisfaction levels and require improvement. These findings emphasize the importance of continuous service enhancement to improve passenger experience and increase the attractiveness of local rail services. The results are expected to serve as a reference for transportation operators and policymakers in developing sustainable railway services along the Madiun–Solo corridor.
Decision Support System for Selecting the Best Rental House with Weight Product in Sidokare District, Sidoarjo Regency Setiawan, Akas Bagus; Yuniar, Eka; Hermansyah, Mas'ud; Mujiono, Mujiono; Ariyadi, David Juli
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8865

Abstract

The demand for rental housing in high-mobility areas such as Sidokare District, Sidoarjo Regency, continues to increase along with the region's economic development. However, prospective tenants often face difficulties in selecting the right rental house due to unstructured information and subjective decision-making processes. This study aims to develop a web-based Decision Support System (DSS) capable of providing objective and measurable rental housing recommendations. The method used is the Weighted Product (WP), a multicriteria decision-making technique that normalizes weights through multiplication operations. This system evaluates five rental housing alternatives based on eight main criteria, including price, location, facilities, security, and comfort. The results show that Sukun Rental House is the best alternative with the highest preference value of 0.0769. The practical implication of this study is the availability of an efficient digital tool for residents and students in Sidokare to compare various housing options transparently and quickly. This system successfully minimizes subjectivity in housing selection and helps users find the housing that best suits their financial priorities and functional needs.
The Relationship Between Workload and Employee Work Productivity at PT Semesta Berkat Utama Daya Indrawan; Said Salim Dahda; Deny Andesta
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8883

Abstract

Employee productivity is a critical factor for organizational success in an increasingly competitive industrial environment. Workload is often perceived as a determinant that can influence productivity, with effects varying depending on individual adaptability and management support. This study aims to analyze the relationship between workload and employee productivity at PT Semesta Berkat Utama. A quantitative correlational approach with a cross-sectional design was applied, involving all 10 employees selected using a saturated sampling technique. Data were collected through closed questionnaires using a 5-point Likert scale and analyzed using Spearman rank correlation due to non-normal data distribution. The results show a very strong positive correlation between workload and productivity (r = 0.967, p = 0.000 < 0.05), indicating that higher workload is associated with higher productivity in this context. The coefficient of determination (r² = 0.991) suggests that workload explains 99.1% of productivity variance. These findings imply that high workload can act as a performance driver when supported by strong motivation and work commitment. The study provides practical insight for proportional workload management to sustain optimal productivity.
Effect of Bottom Bracing Configuration on Mid-Span Deflection of Tied Steel Arch Bridge Faiz Razaan Neema; Dzulkarnain Muhammad Khazruya; Izatullilah Izatullilah; Dzul Fikri Muhammad
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8916

Abstract

Tied steel arch bridges are commonly used due to their structural efficiency and aesthetic value; however, excessive mid-span deflection remains a critical design issue. While previous studies indicate that bottom bracing can enhance stiffness, the optimization of bracing configurations at the mid-span has not been sufficiently investigated. This study evaluates the influence of different bottom bracing configurations on mid-span deflection in tie-beam steel arch bridges. Numerical analysis based on the finite element method was conducted using SAP2000 v.22 on four bridge models with identical geometry, loading conditions, and a total bottom bracing weight of 10 kg. The bridge span was 4 m with an allowable deflection limit of 5 mm. The results show that all configurations satisfy the deflection criteria, with the X-bracing configuration yielding the smallest mid-span deflection. These findings contribute to the understanding of optimal bottom bracing configurations in steel arch bridge design, supporting efficient structural performance in engineering applications.
Automatic Coffee Roasting System With Arduino Uno Based Temperature Control Arsy Febrina Dewi; Asnawi Yoga; Rusli Rusli
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8921

Abstract

Coffee is a popular and widely enjoyed beverage. To produce delicious coffee, quality coffee beans are essential. Quality coffee beans are crucial to achieve the desired taste and aroma. One important process is the coffee roasting process. Manual roasting involves heating coffee beans to a certain roasting level. This process is highly dependent on human perception. To address this issue, the study aims to create an automatic coffee roasting system based on temperature control for three roasting levels: light roast, medium roast, and dark roast. This system is designed with temperature control for the light roast category ranging from 196-197°C with a duration of 11 minutes, medium roast ranging from 210-211°C with a duration of 13 minutes, and dark roast ranging from 230-231°C with a duration of 15 minutes. The system design uses heating elements, servo motors, temperature sensors, and an Arduino Uno microcontroller. Tests were conducted on coffee beans with a capacity of 0.5 kg to 2 kg. Based on the test results, there was a decrease in water content in coffee beans for each roasting category and the system will display the conditions of water content, time, and roasting temperature tested before and after roasting.
Design and Implementation of a Web-Based Visual Search System for MSME E-Commerce Using the Flask Framework Kevin Harlis Oktaviano; Kevin Ilham Apriandy; M. Sholahudin Sunardiyanta
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8942

Abstract

This research presents the design and implementation of an end-to-end web-based visual search system for MSME e-commerce using the Flask framework and a VGG16-based convolutional neural network. The system addresses two critical challenges commonly faced by MSME digital platforms: product tagging errors during product uploads by sellers and limitations of text-based search for customers. A dual-model architecture is implemented, consisting of a visual search module for similarity-based image retrieval and a backend classification module for automatic product categorization. The system is evaluated using a locally collected MSME product image dataset from the Tapal Kuda region, achieving a classification accuracy of 89.17% and visual search performance with a macro precision of 0.85, macro recall of 1.0, and macro F1-score of 0.91. To support real-time deployment, visual features are pre-extracted and stored, enabling efficient query processing with response times under 2 seconds during concurrent usage testing. The results demonstrate that the proposed system provides effective and practical visual search functionality within a localized MSME context while maintaining feasible computational requirements, making it suitable for deployment in resource-constrained MSME environments.
Characterization of Cassava Starch–Based Edible Film (Manihot esculenta) and Seaweed Na-Alginate with Variations in Drying Time Trustha Aurora Firdauza; Widia Kristiana Putri; Harimbi Setyawati; Dwi Ana Anggorowati
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8959

Abstract

Edible films are biodegradable and consumable packaging materials that protect food products from environmental influences. This study aimed to produce and characterize cassava starch–based edible films with sodium alginate from seaweed, glycerol as a plasticizer, and garlic extract as an antibacterial agent using the solvent casting method. The research variables included cassava starch mass (4, 5, and 6 g) and drying time (4, 9, 14, 19, and 24 hours). Film thickness, tensile strength, elongation, moisture content, solubility, and microbiological properties were analyzed. Results showed that starch mass and drying time significantly affected the physical and mechanical properties of the films. The optimum drying time was 14 hours, at which all samples met the Indonesian National Standard (SNI) for moisture content (10–<16%). The best performance was obtained with 6 g starch, producing films with a tensile strength of 5.034 MPa, elongation of 13.48%, and low microbial counts (4–9 cells/100 mL) with negative Escherichia coli, complying with SNI 2897:2008. The addition of garlic extract contributed to the films’ antimicrobial properties. Overall, the formulation demonstrates a balanced combination of mechanical, physical, and microbiological characteristics, providing a practical foundation for developing biodegradable cassava starch–based edible films for food packaging applications.
Design and Evaluation of Automated Fluid-Transfer Suction Pump Based on Arduino for Thoracic Trauma Applications Fuad Afandi; Radian Indra Mukromin; Yanuar Mukhammad; Rahma Ajeng Puspitasari
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8965

Abstract

Thoracic trauma frequently leads to the accumulation of air or fluid within the pleural cavity, compromising pulmonary expansion and requiring immediate evacuation through suction systems. Conventional suction pumps rely heavily on continuous manual monitoring to prevent container overflow, creating potential risks of backflow, contamination, or device malfunction. This study aims to design and evaluate an automated dual-container suction pump prototype capable of maintaining stable suction pressure while minimizing manual supervision during fluid evacuation. The proposed system employs an Arduino Uno microcontroller and integrates an MPX5700DP pressure sensor for suction monitoring, an E18-D80NK infrared sensor for full-container detection, a 12 V solenoid valve for automated flow diversion, a 25DA Solid State Relay (SSR) for safe power switching, and a buzzer alarm for emergency shutdown. Experimental results indicate that all electrical outputs remain within acceptable tolerance ranges (1.2–4.7%), and suction pressure is consistently maintained at 70 cmHg before and after system modification. The accuracy of infrared sensor achieved a detection accuracy of only 30%, highlighting its limited suitability for reliable medical fluid-level monitoring and underscoring the need for alternative sensing technologies in future implementations. Despite this limitation, the prototype demonstrates the feasibility of automated fluid-transfer control and provides a practical foundation for the development of safer and more reliable suction systems for thoracic trauma applications.
Silver Nanoplates: Synthesis, Functional Applications and Translation Potential, A Systematic Literature Review Yosia Nico Wijaya; Nurharis Munandar
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8969

Abstract

Silver nanoplates and related triangular nanoprisms provide edge- and tip-enhanced plasmonics that are attractive for sensing, catalysis, energy conversion, and biomedical concepts, yet translation is frequently limited by oxidative reshaping, ligand loss, and inconsistent reporting. This systematic literature review synthesizes peer-reviewed journal evidence published between 2015 and 2025 to clarify synthesis levers, structure-property-performance relationships, and application readiness. ScienceDirect and Google Scholar were searched (last update: 15 December 2025) and screened using a PRISMA 2020 workflow and PICOC framing. From 137 records, 23 studies met inclusion criteria for qualitative synthesis. Across the literature, reproducible performance most strongly tracks coupled control of lateral size and thickness via pH, chelators, and capping ligands, which tunes LSPR position and linewidth. Applications are most mature in plasmonic sensing, including rapid pathogen and small-molecule detection, while flow-compatible catalysis and device-integrated energy studies provide clearer pathways toward deployment. Key gaps remain in standardized morphology descriptors, long-term stability protocols, batch reproducibility, and leaching or toxicity evidence. Actionable guidance is provided for scalable synthesis, robust validation, and translation-focused reporting. Unlike earlier reviews that emphasize either plasmonic principles or single application niches, this review integrates synthesis control with stability and reporting standards to accelerate translation.
Analysis of Software-Defined Networking Resilience to Link Failure through Failover Routing Simulation Naharotul Istiqomah; Muhammad David Irsyadus Sholihin; Innasya' Putri Hidayati
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8971

Abstract

Software-Defined Networking (SDN) represents an advanced architectural paradigm that separates control logic from data forwarding, enabling centralized and adaptive network management. This study investigates SDN resilience under link failure conditions and evaluates the effectiveness of failover routing in restoring network performance. Simulation-based experiments are conducted on a redundant logical topology implemented using Python and the NetworkX library, covering three operational phases: normal operation, link failure, and failover recovery. The results show that link failures cause a noticeable degradation in network performance, with normalized link utilization increasing due to traffic concentration on limited paths. After failover routing is activated, network performance improves significantly, achieving up to approximately 15–20% higher normalized link utilization compared to the failure state, indicating successful traffic rerouting and service restoration. These findings demonstrate that failover routing enables rapid recovery and maintains service continuity despite link disruptions. This study contributes to SDN resilience research by providing a reproducible logical-topology simulation framework and quantitative evidence that proactive, controller-based failover routing effectively enhances network robustness under link-failure scenarios, offering practical insights for resilient SDN design in data center and enterprise environments.

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