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Mahardika Darmawan Kusuma Wardana
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PELS (Procedia of Engineering and Life Science)
Published by Universitas Muhammadiyah Sidoarjo
ISSN : -     EISSN : 28072243     DOI : https://doi.org/10.21070/pels
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering
PELS (Procedia of Engineering and Life Science) is an international journal published by Faculty of Science and Technology Universitas Muhammadiyah Sidoarjo. The research article submitted to this online journal will be double blind peer-reviewed (Both reviewer and author remain anonymous to each other). The accepted research articles will be available online following the journal peer-reviewing process. Language used in this journal is Bahasa (Indonesia) or English. Aims and Scope of this journal is science and technology.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 815 Documents
 77   78   79   80   81 
Implementation of FTA and FMEA Methods for Identification and Mitigation of Operational Risks in MSME Service Systems at the Cooperative Office of Sidoarjo Regency.: Penerapan Metode FTA dan FMEA untuk Identifikasi dan Mitigasi Risiko Operasional pada Sistem Pelayanan UMKM di Dinas Koperasi Kabupaten Sidoarjo. Mohammad Andre Aditya Rahman; Boy Isma Putra
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2926

Abstract

General Background Public sector service delivery frameworks require robust operational risk management to maintain high standards of institutional performance and administrative efficiency. Specific Background The Micro, Small, and Medium Enterprises (MSME) service system at the Cooperative Office of Sidoarjo Regency frequently encounters administrative hurdles and operational risks during licensing workflows. Knowledge Gap Existing risk assessments seldom evaluate how integrated Failure Mode and Effects Analysis (FMEA) and Fault Tree Analysis (FTA) methodologies address specific bureaucratic bottlenecks in public institutional service frameworks. Aims This study identifies, evaluates, and mitigates operational risks within the MSME public service system using combined FMEA and FTA techniques. Results Findings demonstrate that licensing delays constitute the most critical risk category, driven primarily by multi-layered bureaucratic procedures, manual document verification, and unintegrated information systems. Novelty A systematic public sector risk mitigation framework combining FMEA prioritization with FTA root-cause diagnosis is applied directly to regional cooperative licensing operations. Implications Public institutions can streamline administrative workflows, standardize standard operating procedures, and implement digital data integration to elevate overall service quality and user satisfaction. Key Findings Highlights Licensing delays emerge as the highest priority risk factor requiring immediate administrative intervention. Layered bureaucratic workflows and manual verification practices are identified as primary root causes of service bottlenecks. Systemic digital integration and procedure standardization significantly improve public administrative responsiveness. Keywords Umkm service system, Operational risk, Failure mode and effects analysis, Fault tree analysis, Risk mitigation
Logistics Supply Chain Visibility Training PT. KENCANA MAJU BERSAMA (DISTRIBUTION LIGHT STEEL ): Pelatihan Visibilitas Rantai Pasokan Logistik PT. KENCANA MAJU BERSAMA (DISTRIBUSI BAJA RINGAN ) Fahri Zakaria Putra Fahri; Hendri Hermawan
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2927

Abstract

General Background Modern construction supply chain management requires efficient logistical operations and accurate inventory tracking to maintain project productivity and material flow. Specific Background Light steel manufacturing and distribution facilities, such as PT Kencana Maju Bersama, frequently handle high volumes of construction materials requiring robust warehousing strategies. Knowledge Gap Existing distribution facilities often lack comprehensive evaluations regarding how spatial layout optimization and real-time inventory visibility affect daily loading capacities and error minimization. Aims This study analyzes logistics inventory systems, supply chain visibility, and warehouse spatial layouts to improve operational efficiency and material handling workflows. Results Post-implementation evaluations demonstrate that reorganizing warehouse layouts based on material usage frequency significantly expands daily loading capacity from 10–12 trucks to 20–25 trucks. Novelty The integration of targeted spatial layout re-planning with operational logistics workflow adjustments provides an actionable framework for regional light steel distribution centers. Implications Implementing structured inventory controls and optimized layouts enables distribution enterprises to minimize stockouts, reduce operational delays, and enhance supply chain resilience. Key Findings Highlights Spatial reorganization based on material movement classification substantially increases daily loading throughput. Digital inventory tracking integration mitigates discrepancies between recorded data and physical stock quantities. Enhanced supply chain transparency directly supports rapid operational decision-making in construction logistics. Keywords Light steel, Supply chain visibility, Warehouse layout, Inventory management, Distribution efficiency
Analysis And Integration Of 2 Machines, A Silage Machine And A Pellet Machine: Analisis Serta Penggabungan 2 Mesin, Mesin Silase Dan Mesin Pelet Muhammad Zakiy Prabowo; Prantasi Harmi Tjahjanti
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2930

Abstract

General Background Efficient animal feed processing technologies are critical to sustainable livestock farming and food security. Specific Background Traditional feed processing relies on separate machinery for forage fermentation and feed compaction, increasing operational costs and processing time. Knowledge Gap Although silage fermentation and pelletization individual mechanics are well understood, integrated processing systems combining both mechanisms continuously remain insufficiently explored. Aims This study analyzes the technical, mechanical, and economic feasibility of integrating a silage machine with a pellet machine into a unified livestock feed processing system. Results Technical testing reveals that continuous integration accelerates production workflows, maintains silage nutritional integrity, and reduces labor and material handling expenses. Novelty A combined silage-pellet mechanical framework offers a single-stage continuous workflow utilizing local raw materials. Implications Integrating silage and pellet technologies provides Small and Medium Enterprises (SMEs) with a practical strategy to enhance feed quality, lower operational expenses, and ensure supply continuity. Key Findings Highlights Integrated mechanical processing accelerates livestock feed production time while reducing labor costs. Direct coupling of fermentation and compaction preserves silage nutritional value in uniform pellet forms. Moisture adjustment prior to pelletization optimizes mechanical throughput and pellet structural integrity. Keywords Silage machine, Pellet machine, Feed processing, Machine integration, Livestock feed
Implementation of Robotics Learning at SDIT Insan Kamil Using the IBU (Ide Bangun Uji) Curriculum to Enhance Students’ Creativity and Academic Intelligence: Implementasi Pembelajaran Robotik di SDIT Insan Kamil dengan Kurikulum IBU (Ide Bangun Uji) dalam Meningkatkan Kreativitas dan Kecerdasan Siswa di Bidang Akademik Muhammad Azrul Arwandhi; Indah Sulistiyowati
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2935

Abstract

General Background Elementary technology education increasingly incorporates hands-on engineering activities to cultivate foundational scientific literacy among young learners. Specific Background Extracurricular robotics initiatives at SDIT Insan Kamil utilize the IBU (Idea, Build, Test) curriculum managed by KOKARO to engage elementary students in practical technological tasks. Knowledge Gap Existing studies frequently lack detailed assessments of how structured project-based frameworks specifically shape step-by-step technical execution and problem-solving capacities in primary school environments. Aims This study investigates the implementation of the IBU framework in robotics learning and examines student assembly processes for light-controlled smart car projects. Results Descriptive qualitative evaluations reveal that hands-on component preparation, mechanical-electronic integration, and systematic testing improve core technical understanding, analytical reasoning, and practical engineering skills across participating students. Novelty The work highlights a lightweight, project-centered instructional framework tailored for early childhood STEM adoption without demanding complex digital infrastructure. Implications Educational institutions can adopt structured, practice-oriented robotics curricula to strengthen logical reasoning and applied problem-solving abilities within early grade STEM programs. Key Findings Highlights Practical engagement through structured stages facilitates deeper comprehension of electronic circuit design and mechanical assembly. Structured testing phases foster critical evaluation skills by enabling real-time error detection and hardware optimization. Project-based learning methodologies directly boost primary school student problem-solving capacities in basic automation concepts. Keywords Robotics Learning, Extracurricular Activities, Technology, STEM, Technical Skills
Maintenance Of Wooden Ship Engines For Transporting Goods: Pemeliharaan Mesin Kapal Kayu Untuk Pengangkutan Barang Reygandy Maulana Brilliant
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2941

Abstract

General Background Maritime transportation systems rely heavily on cargo ship engines to maintain efficient coastal and inter-island supply chains. Specific Background This study examines the practical maintenance and repair procedures applied to wooden cargo ship diesel engines at PT. Duta Bahtera Permai. Knowledge Gap Despite the critical operational role of wooden vessels, empirical documentation regarding practical field-based troubleshooting and routine upkeep remains scarce. Aims This research aims to evaluate mechanical maintenance methods, component inspections, and repair processes conducted during engineering internships. Results Findings demonstrate that structured maintenance practices enable students and technicians to accurately identify malfunctions, service lubricating systems, and sustain engine reliability. Novelty This work provides a field-documented evaluation of wooden vessel diesel engine upkeep under high-load operating conditions. Implications Systematic maintenance training directly improves technical proficiency and operational safety readiness for engineering professionals. Key Findings Highlights Routine maintenance practices successfully sustain engine performance and extend mechanical lifespan under high-load operating conditions, Practical field inspections enable accurate identification of lubrication, cooling, and fuel system malfunctions, Structured internship involvement bridges academic theory with practical maritime engineering competencies. Keywords Maintenance, Wooden Ship Engine, Repair, Internship, Diesel Engine
Design of a Two-Axis Pointing Sensor System (Azimuth and Elevation) Based on Servo Motors Using HC-SR04 Ultrasonic Sensors as Part of the SEWACO Subsystem : Rancang Bangun Sistem Pointing Sensor Dua Sumbu (Azimut dan Elevasi) Berbasis Servo Motor Menggunakan Sensor Ultrasonik HC-SR04 sebagai Bagian dari Subsistem SEWACO Dandi Bagus Sajiwo
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2943

Abstract

General Background Modern defense architectures rely heavily on integrated sensor, weapon, and command systems to detect, track, and direct assets toward operational targets efficiently. Specific Background This study examines the design and construction of a two-axis pointing system utilizing servo motors and an HC-SR04 ultrasonic sensor as part of a low-cost embedded SEWACO subsystem. Knowledge Gap Although multi-axis alignment is crucial, prototyping affordable and reliable real-time targeting mechanisms utilizing low-cost microcontrollers remains underexplored. Aims This research aims to develop an automated two-axis sensor pointing mechanism capable of real-time target acquisition and angle referencing based on distance inputs. Results Findings demonstrate that the system successfully performs stable target tracking across static and dynamic conditions, yielding average tracking errors of 3.72° in azimuth and 0.41° in elevation. Novelty This work introduces an integrated closed-loop PID control mechanism combined with joystick manual override for dual-axis ultrasonic-based sensor pointing. Implications The developed prototype serves as an effective foundational model for low-cost embedded target acquisition systems in naval and defense applications. Key Findings Highlights The two-axis pointing system successfully automates azimuth and elevation adjustments using ultrasonic distance data, Closed-loop PID control implementation stabilizes actuator positioning and target locking within operational ranges, Testing confirms stable real-time target tracking despite minor mechanical backlash and sensor noise limitations. Keywords Two-Axis Pointing System, Azimuth, Elevation, Servo Motor, HC-SR04
Implementation of Periodic Services as a Preventive Strategy for Damage to Private Cars: Implementasi Servis Berkala sebagai Strategi Preventif pada Kerusakan Kendaraan Mobil Pribadi Febri Murdianto Febri; Dr. Prantasi Harmi Tjahjanti, S.Si., M.T. Prantasi
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2944

Abstract

General Background Periodic service operates as a preventive maintenance strategy designed to maintain vehicle performance and mitigate potential damage in private cars. Specific Background This study addresses the implementation of periodic service as a preventive measure against recurring component failures caused by neglected maintenance practices. Knowledge Gap Although preventative strategies are beneficial, empirical evaluations linking service adherence to quantified reductions in vehicle breakdown incidents and maintenance costs remain limited. Aims This research analyzes the implementation of periodic service as a preventive strategy to preserve automobile reliability and reduce unexpected repair expenses. Results Findings indicate that consistent adherence to periodic service schedules improves vehicle reliability, extends component operational lifespan, and significantly reduces unexpected repair costs. Novelty This work combines service history documentation, dealership work order data analysis, and multi-indicator evaluations to assess private car maintenance compliance. Implications User awareness and strict compliance with manufacturer recommendations serve as critical factors for the success of preventive automotive strategies and driving safety. Key Findings Highlights Consistent implementation of periodic service reduces vehicle damage incidents significantly compared to unserviced vehicles, Regular maintenance delivers substantial cost savings on unexpected repairs and minimizes vehicle downtime, Customer compliance with manufacturer-recommended service intervals is a key determinant of long-term automobile reliability. Keywords Periodic Service, Preventive Maintenance, Private Car, Vehicle Damage, Maintenance Strategy
Alarm System for Plastic Sheet Roll Depletion Detection on Thermoforming Machines: Sistem Alarm untuk Deteksi Habisnya Gulungan Lembaran Plastik pada Mesin Thermoforming Mahendra Hendra; Dwi Hadidjaja Rasjid Saputra
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2947

Abstract

General Background Thermoforming machines in the plastic manufacturing industry rely on plastic sheet rolls as the primary raw material that must be supplied continuously during production. Specific Background A critical operational issue occurs when plastic sheet rolls approach depletion while machines continue operating due to the absence of automated operator warning systems. Knowledge Gap Although automated monitoring is essential for stability, unmonitored material exhaustion frequently leads to excessive material waste and reduced manufacturing efficiency. Aims This article investigates the implementation of a plastic sheet roll depletion detection system on a thermoforming machine to provide early warnings for operators. Results Findings demonstrate that utilizing a photoelectric sensor and reflector successfully detects remaining sheet material and triggers alarms via relays to notify operators promptly. Novelty This work presents a functional field-tested automation setup integrating photoelectric sensing with machine PROFIBUS control for continuous plastic sheet monitoring. Implications Timely operator notifications support more effective, controlled production workflows and minimize material wastage in industrial manufacturing. Key Findings Highlights The automated detection system successfully identifies plastic sheet roll depletion using photoelectric sensors and reflectors, Relay integration effectively activates alarms to notify operators before complete material exhaustion occurs, Functional testing confirms the mechanism eliminates false alarms while ensuring smooth, uninterrupted manufacturing processes. Keywords Thermoforming Machine, Photoelectric Sensor, Alarm System, Plastic Sheet Roll, Industrial Automation
Distribution Transformer Protection and Maintenance System On TR 5-2 Transformer At PT Petrokimia Gresik: Sistem Proteksi dan Pemeliharaan Transformator Distribusi Pada Trafo TR 5-2 Di PT Petrokimia Gresik Muhammad Rifqi Anwaruddin; Indah Sulistiyowati
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2949

Abstract

General Background Industrial power systems rely heavily on distribution transformers to bridge energy sources and operational loads effectively. Specific Background This study examines the implementation of protection and maintenance systems on the TR 5-2 distribution transformer at PT Petrokimia Gresik to safeguard operational reliability and process continuity. Knowledge Gap Although transformers are vital, potential electrical, thermal, and mechanical disturbances that threaten uninterrupted production activities require continuous evaluation. Aims This research aims to evaluate the coordinated protection configuration and preventive maintenance protocols applied to the industrial transformer. Results Findings indicate that the transformer utilizes a comprehensive, layered protection scheme—including Buchholz relay, OTI, WTI, GFR, SPR, OCR, and OLR—complemented by routine preventive maintenance such as oil level monitoring and component servicing. Novelty This work provides a field-based empirical assessment of layered safety mechanisms and upkeep procedures for step-down distribution transformers within large-scale chemical manufacturing. Implications Systematic coordination between multi-layer protection and scheduled maintenance successfully preserves operational performance and prevents premature industrial downtime. Key Findings Highlights The distribution transformer is equipped with a comprehensive seven-layer protection scheme to mitigate thermal, electrical, and mechanical faults, Preventive maintenance practices such as routine inspections and oil level checks effectively sustain operational integrity, Coordinated relay configurations successfully isolate internal and external anomalies without disrupting healthy system components. Keywords Distribution Transformer, Protection System, Preventive Maintenance, Industrial Power System, Reliability
Business Feasibility Analysis at the Toko Tani Indonesia Center at the Food and Agriculture Office of Sidoarjo Regency: Analisis Kelayakan Usaha pada Toko Tani Indonesia Center Di Dinas Pangan dan Pertanian Kabupaten Sidoarjo Dewi Nur Ayuningtyas; Tedjo Sukmono
Procedia of Engineering and Life Science Vol. 10 No. 1 (2026): Proceedings of the 9th Seminar Nasional Sains 2026
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v10i1.2950

Abstract

General Background Business feasibility analysis serves as a comprehensive evaluation framework to determine the viability of commercial initiatives and developmental projects. Specific Background This study investigates the business feasibility of the Toko Tani Indonesia Center (TTIC) managed by the Department of Food and Agriculture of Sidoarjo Regency as a marketing channel for MSME products and a provider of affordable food commodities. Knowledge Gap Although the store holds significant potential to support the regional economy, empirical evaluations addressing low customer visits and limited public awareness remain unaddressed. Aims This research aims to analyze business viability across legal, market and marketing, financial, technical and operational, management and human resources, economic and social, as well as environmental aspects. Results Findings demonstrate that the business is feasible for development, yielding a Benefit Cost Ratio (BCR) of 2.02, alongside adequately fulfilled legal, technical, managerial, and environmental aspects. Novelty This work provides a multi-aspect feasibility evaluation specifically focused on government-backed agricultural retail outlets supporting regional MSMEs. Implications Strengthening promotional strategies and operational management is essential to increase customer traffic and sales volume. Key Findings Highlights Financial analysis confirms the business is viable with a Benefit Cost Ratio (BCR) value of 2.02, Legal, technical, managerial, social, and environmental aspects have been adequately fulfilled, Marketing and promotional aspects require significant strengthening due to limited public awareness and low customer visits. Keywords Industrial Feasibility Study, Market Aspect, Legal Aspect, Technical Aspect, Financial Aspect

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