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Jurnal E-Komtek
Published by Politeknik Piksi Ganesha Indonesia
ISSN : 25803719     EISSN : 26223066     DOI : https://doi.org/10.37339/e-komtek.v4i2.269
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering
Jurnal E-Komtek (Elektro-Komputer-Teknik) is a Journal that contains scientific articles in the form of research results, analytical studies, application of theory, and discussion of various problems relating to Electrical, Computer, and Automotive Mechanical Engineering.
Arjuna Subject : Ilmu Komputer (semua kategori) - Visi Komputer dan Pengenalan Pola
Articles 335 Documents
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Implementasi Sistem E-Commerce Berbasis Web dengan RajaOngkir dan Midtrans untuk Penjualan Batu Akik di Desa Tunjungmuli Andi Badrun; Anisa Lutfiyani
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.3221

Abstract

The advancement of internet technology has transformed global business through e-commerce. For agate gemstone craft MSMEs in Tunjungmuli Village, whose products possess high economic value due to their aesthetic appeal and rarity, adopting an information system is a strategic way to expand market reach. However, reliance on conventional marketing methods has limited sales growth and market accessibility. This Research and Development (R&D) study employed the ADDIE model to develop an e-commerce system integrated with product information, automatic shipping cost calculation through the RajaOngkir API, and the Midtrans payment gateway, while also evaluating its feasibility. The results show that the e-commerce platform was successfully developed. Evaluation using the Black Box Testing method yielded a system functionality score of 84.6%, which falls within the 81%–100% range and is categorized as Highly Feasible. The findings indicate that minor input-related issues do not affect transaction stability, making the system suitable for optimizing sales among agate gemstone artisans in Tunjungmuli Village.
Implementation of a Web-Based Agricultural Management Information System with Integrated Operational and Financial: A Case Study at Okazakki Farm Akhul Ngudiono; Lahan Adi Purwanto; Feri Wibowo; Ridho Muktiadi
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.2966

Abstract

Operational management in small and medium-scale agricultural enterprises is commonly conducted manually, leading to inaccuracies in record-keeping, limited traceability of cultivation cycles, and inconsistencies in financial reporting. This study aims to develop a web-based agricultural management information system that integrates planting, harvesting, labor management, and financial processes at Okazakki Farm. The system was developed using the Rapid Application Development method with iterative prototyping, while system requirements were collected through observation, interviews, and documentation. The system was implemented using a web-based framework and a relational database. The implementation results demonstrate that the system is capable of validating field block availability, recording harvest activities along with associated labor, updating inventory levels, and automatically generating income and expense records. Black-box testing results indicate that all core system functionalities operate in accordance with user requirements. This research contributes to supporting the digitalization of agricultural enterprises through end-to-end integration of operational and financial processes.
Klasifikasi Citra Magnetic Resonance Imaging (MRI) Penyakit Tumor Otak Menggunakan Metode Convolutional Neural Network (CNN) Dengan Arsitektur VGG-16 Dan Xception Melania Erika Andolo; Herman Bedi Agtriadi; Meilia Nur Indah Susanti
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.2974

Abstract

rain tumors are critical medical conditions that require early diagnosis to improve treatmentoutcomes. Magnetic Resonance Imaging (MRI) is widely utilized for brain tumor detection due to itsability to produce high-resolution images of soft tissues. Nevertheless, manual interpretation of MRIimages presents several challenges, including time inefficiency and variability among observers. Toaddress these issues, this study applies the Convolutional Neural Network (CNN) approach usingVGG-16 and Xception architectures to classify brain tumor MRI images and to evaluate theirperformance comparatively. The dataset comprises 2,877 MRI images categorized into four classes:glioma tumor, meningioma tumor, pituitary tumor, and no tumor. Preprocessing stages includeresizing images to 224×224 pixels and dividing the dataset into training, validation, and testing setswith a ratio of 80:10:10. Model performance is assessed using accuracy, precision, recall, and F1-scoremetrics. Experimental results indicate that the VGG-16 architecture achieves an accuracy of 92%, whilethe Xception architecture records an accuracy of 91%.
Performance Analysis of a Low-Pass Filter for Virtual Camera Rotation Stabilization Using a Gyroscope Sensor Dila Dahlia; Tito Pinandita; Sigit Sugiyanto; Elindra Ambar Pambudi
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.3001

Abstract

The use of mobile device cameras often suffers from rotational instability caused by jitter and sudden orientation changes, reducing visual quality and user experience in virtual camera applications. This study evaluates the effectiveness of a low-pass filter in stabilizing gyroscope-based virtual camera rotation. Experiments were conducted using an iPhone 12 under six movement scenarios: slow rotation, fast rotation, random movement, walking, stair climbing, and motorcycle riding. Euler angle and inter-frame jitter data were analyzed before and after filter implementation. The results show that the low-pass filter significantly reduces rotational jitter in five of the six scenarios. The greatest improvement was observed during walking, with an 86.55% reduction, followed by fast rotation (72.21%) and random movement (68.87%). These findings confirm that the low-pass filter effectively suppresses high-frequency rotational disturbances, enhancing virtual camera stability and providing a practical foundation for developing more reliable gyroscope-based rotation stabilization systems on mobile devices.
Chili Price Prediction Model in Banyumas and Cilacap Regencies Using Comparative Machine Learning Algorithm Fima Rizqina Mubaroka; Maulida Ayu Fitriani; Elindra Ambar Pambudi; Dimara Kusuma Hakim
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.3003

Abstract

Fluctuations in chili prices as a strategic commodity often pose challenges to food price stability, particularly in Central Java regions such as Banyumas and Cilacap Regencies. This study aims to explore and compare the performance of three classical machine learning algorithms: Ridge Regression, Lasso Regression, and Random Forest Regressor. This study utilizes daily historical data spanning from January 2018 to June 2025 to identify market patterns and trends. Furthermore, this research projects chili prices for the next 365 days. Consistently, Lasso Regression demonstrated the best performance in both regions. The model achieved the highest accuracy in Banyumas Regency Banyumas (MAPE 2,75%) and Cilacap Regency (MAPE 5,08%). However, visual analysis of long-term predictions revealed that Ridge Regression produced a more realistic graph compared to Lasso Regression. Conversely, Random Forest Regressor failed to capture long-term trends as it yielded stable predictions. The prediction results were subsequently visualized in an interactive dashboard based on the Flask framework.
Sustainable Waste Management Assessment of Small–Medium Motorcycle Workshops Onery Saputra; Muhammad Fajar Sodiq; Ilyas Syafiq DR
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.3061

Abstract

The growth of small-to-medium-sized motorcycle repair shops in Soloraya has increased the amount of waste that has the potential to pollute the environment if not managed properly. This study analyzes the characteristics of repair shops, the types and amounts of waste, management practices, and the potential economic value from a sustainability perspective. The study was conducted at ten repair shops (n = 10) through observation, structured interviews, and surveys. In one month, the ten workshops produced 1,214 used oil bottles, 337 liters of used oil, and 20 used batteries, as well as non-hazardous waste in the form of metal components and brake pads. The dominance of used bottles and oil reflects the high level of routine maintenance. Management is still limited to temporary storage and delivery to third parties with substandard facilities. Waste has economic value: oil at Rp1,500/liter, batteries and metal at Rp12,000/kg, indicating both environmental risks and circular economic opportunities.
Study of the DTC P0108 Fault on a Suzuki XL7 Engine Muhammad Andre
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.3157

Abstract

This study aims to describe the analysis of the causes of problems in the engine of Suzuki XL7 with Diagnostic Trouble Code P0108. The analysis was conducted to identify the causes of this problem in the engine. The research method employed was a quantitative descriptive approach, utilising testing with a Scantool, Multy Tester and Vacuum Gauge. The testing procedure included engine preparation, instrument calibration, and the execution of diagnostics in accordance with established standard procedures. The research results indicate that the cause of the problem lies in the internal circuit of the MAP (manifold absolute pressure) sensor, with an O.L. (open-loop) measurement result, indicating no connection. This result was obtained by analysing the connections within the entire internal circuit of the MAP sensor. Overall, this study provides empirical information regarding the functioning of the MAP sensor in relation to the engine performance of the Suzuki XL7 following measurement analysis conducted in accordance with applicable procedures.
Comparative Analysis of PCC Load Balancing and Quality of Service (QoS) Queue Tree Methods on Mikrotik for Bandwidth Optimization Duliades Mirsal; Herman Bedi Agtriadi
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.3170

Abstract

The increasing demand for fast, stable, and efficient Internet connectivity requires optimal bandwidth management, especially in PLN's operational networks. This study analyzes and compares two MikroTik bandwidth management methods, namely Per Connection Classifier (PCC) Load Balancing and Quality of Service (QoS) Queue Tree, to optimize network performance. An experimental approach was conducted under three traffic conditions: low, medium, and high. The evaluation focused on key network parameters, including throughput, latency, packet loss, and connection stability. The results indicate that PCC Load Balancing achieves higher throughput and more effective traffic distribution across multiple Internet Service Providers (ISPs), making it suitable for networks with many general users. In contrast, QoS Queue Tree provides lower latency and jitter while ensuring better traffic prioritization for critical services such as SCADA systems and internal communications. Therefore, PCC is more effective in maximizing bandwidth utilization, whereas QoS Queue Tree offers superior service quality and network stability. A hybrid implementation of both methods is recommended to achieve optimal efficiency and performance in PLN operational environments.
Development of a Web-Based Graduation Document Completeness Information System Annisa Gatri; Cahya Vikasari; Nur Muniroh
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.3189

Abstract

The manual graduation administration process causes data errors, incomplete documents, and legal risks such as diploma revocation. This study aims to develop a web-based graduation document information system to automate final project document verification and improve graduation administration accuracy and efficiency. The study used the waterfall method, including requirements analysis, database and interface design, implementation with PHP and MySQL, and black-box testing. The system features student data management, an 8-document checklist (including file upload), automation of eligibility status, a statistical dashboard, and three report levels. Testing on 47 scenarios achieved a 100% success rate. The web-based system effectively improves graduation data accuracy, eliminates human error, and supports digital transformation of academic services. Further development requires adding student roles and automatic notifications.
Snack Supply Information System at UD Bunda Ida Using the EOQ Method Azrial Pratama; Samsudin
Jurnal E-Komtek Vol 10 No 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v10i1.3209

Abstract

This research aims to design an integrated inventory information system with the Economic Order Quantity (EOQ) method, equipped with safety stock and reorder points, to assist stores in optimizing inventory control. The EOQ method is used to determine the number of orders that are economical so that it can minimize the total cost of inventory. The developed system not only calculates EOQ, but also manages inventory data in real-time, provides notifications of near-expired products, and re-order recommendations. This study fills the gap from previous studies that are still limited to semi-manual or unintegrated systems. The design results show that the EOQ-based information system is able to improve the efficiency of inventory management, reduce the risk of overstock and stock shortages, and support more accurate decision-making. Thus, this system is expected to help UD Bunda Ida in providing optimal service to consumers while increasing business profits.

Page 32 of 34 | Total Record : 335

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