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All Journal Jurnal Dedikasi Geo Media: Majalah Ilmiah dan Informasi Kegeografian JURNAL SISTEM INFORMASI BISNIS Jurnal Pendidikan Geografi Undiksha Journal of Tropical Soils Jurnal Simetris SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin TARBIYA : Journal Education in Muslim Society Jurnal Transformatika Media Mesin: Majalah Teknik Mesin R.E.M (Rekyasa Energi Manufaktur) Jurnal JPG (Jurnal Pendidikan Geografi) Turbo : Jurnal Program Studi Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat BAREKENG: Jurnal Ilmu Matematika dan Terapan JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknik Mesin Indonesia Abdimasku : Jurnal Pengabdian Masyarakat JPM: JURNAL PENGABDIAN MASYARAKAT Jurnal Mesin Nusantara Indonesian Journal of Innovation Studies PELS (Procedia of Engineering and Life Science) Procedia of Social Sciences and Humanities Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Tematik Journal Of Engineering Sciences (Improsci) Jurnal Alat Berat Jurnal Pengabdian Masyarakat Teknologi dan Pendidikan (MANTAP) Sainstech Nusantara Geosfera Indonesia Jurnal DIMASTIK
Edi Widodo, Edi
Magister Sistem Informasi Universitas Diponegoro
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Analysis of The Design of Thickness Variations of Pressure Cooker Equipment Using A Strainer Muqaffi, Alfan Dabbar; Harmi Tjahjanti, Prantasi; Widodo, Edi
Jurnal Improsci Vol 3 No 3 (2025): Vol 3 No 3 December 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v3i3.1036

Abstract

Background. In micro, small, and medium enterprises (MSMEs) that make pressure milkfish, the majority still use manual pressure cookers, with the pressure showing that the milkfish is cracked, making it less attractive in terms of performance and appearance. Aims. Therefore, the purpose of this research is to design a presto milkfish pot equipped with a filter. The design uses AutoCAD for 2D drawings and SolidWorks software 2023 for 3D. The results obtained have been used to design pressure-cooker equipment with a filter. Methods. The results of the design of pressure cooker equipment using filters with varying pan thicknesses are for Von Mises stress, displacement (shift)/elongation, strain/strain, and Safety Factor (SF). Result. The analysis of all design results was obtained: (a). The results of the Von Mises stress simulation, with varying pressure cooker thickness, show that the wall thickness is directly proportional to the maximum Von Mises stress. So the wall of the pressure cooker with the greatest thickness (3mm) has the maximum voltage value of Von Mises, also the greatest (978.0 MPa), (b).  The results of the pressure cooker elongation/displacement simulation with varying pressure cooker thickness showed that thickness variation was not significant for elongation/displacement. The average elongation/displacement is 0.008468 mm; the result is quite small, indicating that the thickness of the pan is not related to the elongation of the pressure cooker material at a break or a certain limit (c). The results of the pressure cooker strain simulation with the pressure cooker thickness variation, with a value of 0.004613, indicate that the pressure cooker thickness variation is not significant to the pressure cooker strain, because the strain obtained does not cause a change in the shape of the pressure cooker equipment, even though the pressure cooker wall has a different thickness Conclusion. Safety Factor simulation results/ Factor of Safety (FS) pressure cookers with pressure cooker thickness variations it appears that for the pressure cooker thickness variation, all have an acceptable FS, because the value exceeds the value of 1.
Implementasi Internet of Things dalam Optimalisasi Pengolahan Limbah Tekstil Pada Kelompok Pemberdayaan Kesejahteraan Keluarga Mauliana, Metatia Intan; Indahyanti, Uce; Widodo, Edi
JPM: Jurnal Pengabdian Masyarakat Vol. 6 No. 3 (2026): January 2026
Publisher : Forum Kerjasama Pendidikan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/jpm.v6i3.2810

Abstract

The problem of waste, particularly textile waste, continues to increase in line with the growing trend of fast fashion and the lack of effective household waste management. Larangan Village, located in Candi Subdistrict, Sidoarjo, has great potential to develop a community-based waste management system through the active role of the PKK Larangan Mega Asri Women’s Group. This community service program aims to improve literacy, skills, and management of textile waste processing integrated with Internet of Things (IOT)-based technology. The implementation methods include socialization, skills training, technical assistance, monitoring, and evaluation of partner competency improvement. Based on the results of questionnaires completed by training participants, the textile waste processing training activities had a positive impact on improving participants’ knowledge, skills, and motivation. Each indicator aspect showed satisfactory results: knowledge (average score 4.60), skills (4.36), attitude, motivation, and sustainability (4.67), as well as program relevance and usefulness (4.70) on a five-point scale, with an overall average score of 4.56 or 91.20%. In addition, the application of technology through the “KLAMBIKU” IOT-based donation box innovation has strengthened the textile waste management system to become more efficient, integrated, and user-friendly. This technology enables real-time monitoring of box conditions, digital storage of donation data, and the provision of information on nearby donation locations to the community. Overall, this program demonstrates that the combination of skill-based education and the application of appropriate technology can serve as an innovative solution for community-based textile waste management.
Measuring Geography Online Learning in The First Year Using The Online Learning Quality Index Based on Teachers and Learners’ Perceptions (OLQ-TLP) Yulianto, Agung; Mukminan; Oktavianto, Dwi Angga; Widodo, Edi; Ramos, Angelou O.
Geosfera Indonesia Vol. 9 No. 3 (2024): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v9i3.43337

Abstract

Online learning is a relatively new thing for some teachers in South Kalimantan. It was the first time for these teachers to do online learning since the government took the policy of learning from home due to the disaster emergencies and environmental change. This study aims (1) to determine the perception of geography teachers in South Kalimantan who have just done online learning for the first time, and (2) to determine the quality of online learning that has been implemented based on the mean index value of each factor. The research was designed with a quantitative approach through an online survey of 26 geography teachers who teach 10th grade at the high school level. The sample was selected by Cluster Random Sampling. The questionnaire instrument used a modified the online learning quality index based on teachers and learners’ perceptions (OLQ-TLP). The research time was from December 2020 to February 2021. The results showed that teachers' perceptions of online learning were in a good category. Based on the index value, factors that have good quality are Learner content, Learner interaction, Instruction interaction, Social Presence, and Course design. Other factors still need to be improved, namely the factors of Learner satisfaction, Knowledge acquisition, Learning platform, Instruction, Learning support, and Ability of transfer. Therefore, to improve teachers' expertise in online geography learning on lithosphere material, training with an innovative Digital Education Shifting (DES) approach is needed.
Computer-Aided Design (CAD) Training for Appropriate Technology (TTG) to Enhance the Competence of Vocational High School Students in East Java Mulyadi; Widodo, Edi; Fahruddin, A'rasy; Ahfas, Akhmad
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 10 No. 2 (2025): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v10i2.22448

Abstract

This community service programme aimed to enhance the competencies of vocational high school students in East Java through Computer-Aided Design (CAD) training for Appropriate Technology (AT). Held on 13 June 2025 at the Mechanical Engineering Study Programme, Universitas Muhammadiyah Sidoarjo (Umsida), the activity was part of the Institutional Community Service Grant initiative. A total of 20 students from four partner schools participated, with each school sending five representatives. The training focused on developing students’ technical skills in designing AT products using CAD software and simulating basic fluid mechanics relevant to product development. Expert instructors, certified by the National Professional Certification Board (BNSP), delivered hands-on sessions to ensure strong practical learning outcomes. The results showed significant improvements in students’ technical abilities in CAD-based product design, a better understanding of engineering concepts, and greater readiness to apply these skills in industry-related contexts. This programme represents a strategic effort to bridge the gap between vocational school graduates’ competencies and industry demands, while also fostering innovation and the potential for technology-based entrepreneurship.
Design and Structural Analysis of Meatball Printing Machine with Arduino Uno-Based Security System for Operator Protection Ramadhan, Bayu Surya; Widodo, Edi; Fahruddin, A'rasy; Mulyadi
SAINSTECH NUSANTARA Vol. 2 No. 4 (2025): November 2025
Publisher : Nusantara Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71225/jstn.v2i4.119

Abstract

This study presents the design and structural verification of a compact meatball-forming machine that integrates an Arduino Uno–based operator protection system. A redesigned 500×500×1011 mm frame made of 20×20×1.5 mm hollow steel was modeled in SolidWorks 2024 and evaluated using finite element analysis (von Mises stress, displacement, strain, and safety factor) under an applied load representing a 30 kg operating condition. To reduce assembly complexity, two alternative concepts were assessed using Design for Assembly (DFA), and the most efficient configuration was selected for detailed development. The safety subsystem employs an HC-SR04 ultrasonic sensor facing the operator zone; when the detected distance falls below 10 cm, the controller triggers a warning indicator and enables protective control actions. The final concept achieved higher DFA efficiency (18%) than the initial concept (16%) while reducing material use and overall footprint. Structural simulations indicate a peak von Mises stress of 163.6 MPa, below the 250 MPa yield strength of ASTM A36 steel, a maximum displacement of 1.002 mm, and a minimum safety factor of 1.528, confirming adequate stiffness and margin against yielding. The proposed design combines adjustable forming via an iris mechanism with servo-driven cutting to improve process consistency while embedding real-time proximity sensing to enhance occupational safety.
Tensile and Compressive Behavior of Sansevieria Fiber Composites: Perilaku Tarik dan Tekan Komposit Serat Sansevieria Al-Amin , Achmad Nurfadil; Widodo, Edi
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.2039

Abstract

General Background: Natural fiber reinforced composites have gained attention in mechanical engineering due to their lightweight characteristics and sustainable material potential. Specific Background: Sansevieria fiber combined with polyester resin and alkali treatment has demonstrated promising mechanical properties; however, limited studies evaluate the addition of amylum starch concentration within the matrix system. Knowledge Gap: There remains insufficient experimental evidence regarding how varying amylum manihot concentrations modify tensile and compressive responses of Sansevieria fiber reinforced composites. Aims: This study investigates tensile strength and compressive strength of alkali-treated Sansevieria fiber composites with 6%, 7%, 8%, 9%, and 10% amylum starch addition using ASTM D-638 and ASTM D-695 standards. Results: Experimental findings indicate that starch addition increases tensile strength, with the highest tensile stress of 35.53 MPa at 8% concentration, while compressive strength decreases, with the highest compressive stress of 108.27 MPa observed in specimens without starch addition. Novelty: The research presents a systematic comparison of dual mechanical properties under controlled starch concentration variations in polyester-based Sansevieria composites. Implications: The findings provide reference data for optimizing composition design in natural fiber reinforced composite applications requiring tailored tensile and compressive performance. Keywords: Natural Fiber Composite, Sansevieria Fiber, Amylum Starch, Tensile Strength, Compressive Strength Key Findings Highlights Maximum tensile stress recorded at 8% starch concentration. Highest compressive stress obtained in specimens without additive. Alkali-treated fiber composites show contrasting mechanical trends.
Measuring Geography Online Learning in The First Year Using The Online Learning Quality Index Based on Teachers and Learners’ Perceptions (OLQ-TLP) Yulianto, Agung; Mukminan; Oktavianto, Dwi Angga; Widodo, Edi; Ramos, Angelou O.
Geosfera Indonesia Vol. 9 No. 3 (2024): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v9i3.43337

Abstract

Online learning is a relatively new thing for some teachers in South Kalimantan. It was the first time for these teachers to do online learning since the government took the policy of learning from home due to the disaster emergencies and environmental change. This study aims (1) to determine the perception of geography teachers in South Kalimantan who have just done online learning for the first time, and (2) to determine the quality of online learning that has been implemented based on the mean index value of each factor. The research was designed with a quantitative approach through an online survey of 26 geography teachers who teach 10th grade at the high school level. The sample was selected by Cluster Random Sampling. The questionnaire instrument used a modified the online learning quality index based on teachers and learners’ perceptions (OLQ-TLP). The research time was from December 2020 to February 2021. The results showed that teachers' perceptions of online learning were in a good category. Based on the index value, factors that have good quality are Learner content, Learner interaction, Instruction interaction, Social Presence, and Course design. Other factors still need to be improved, namely the factors of Learner satisfaction, Knowledge acquisition, Learning platform, Instruction, Learning support, and Ability of transfer. Therefore, to improve teachers' expertise in online geography learning on lithosphere material, training with an innovative Digital Education Shifting (DES) approach is needed.
Dough Mixer Machine Design Increases Cracker Production Capacity: Desain Mesin Pengaduk Adonan Meningkatkan Kapasitas Produksi Kerupuk Saputra, Muhammad Anggie Cahya; Mulyadi; Fahruddin, A’rasy; Widodo, Edi
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.2126

Abstract

General Background: Productivity and consistency are essential factors in food processing industries, particularly in small and medium enterprises. Specific Background: Manual dough mixing in cracker production often results in low efficiency and inconsistent product quality. Knowledge Gap: Limited studies focus on practical machine design that addresses both productivity and consistency in small-scale cracker production. Aims: This study aims to design and develop a dough mixer machine to improve production capacity and mixing consistency. Results: The developed machine demonstrates improved mixing performance, increased production capacity, and more uniform dough compared to manual processes. Novelty: The study presents a practical machine design tailored for small-scale industries with specific capacity considerations. Implications: The results provide a reference for implementing appropriate technology to support productivity improvement in small-scale food production. Keywords: Dough Mixer, Machine Design, Productivity, Small Industry, Food Processing Key Findings Highlights Mechanical system enables higher output compared to manual mixing Process uniformity improves through controlled rotation mechanism Design supports small-scale production requirements
Manufacturing Analysis of Banana Slicer Machine Capacity 59 kg Hour: Analisis Produksi Mesin Pengiris Pisang dengan Kapasitas 59 kg per Jam Hanani, Nabil Azka; Mulyadi; Widodo, Edi; Fahruddin, A’rasy
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.2127

Abstract

General Background: Banana processing is an important agro-industrial activity in Indonesia, particularly for producing banana chips with consistent quality. Specific Background: Conventional manual slicing methods are inefficient and result in inconsistent thickness, limiting productivity and product quality. Knowledge Gap: Previous approaches have not fully integrated manufacturing process analysis with time, cost, and performance evaluation in a single machine design. Aims: This study aims to analyze the manufacturing process of a banana slicer machine with a capacity of 59 kg/hour, including time estimation, cost calculation, and performance testing. Results: The manufacturing process consists of cutting, drilling, welding, turning, and milling, resulting in a total production time of 29.63 hours and a total cost of Rp 5,058,262. Performance testing shows that the use of three blades produces the most consistent slice thickness of 2 mm with good quality output. Novelty: The study integrates detailed manufacturing time analysis, cost estimation, and performance evaluation within a single machine development framework. Implications: The findings provide practical guidance for improving production efficiency and product quality in small to medium-scale banana processing industries. Keywords: Banana Slicer, Manufacturing Process, Production Cost, Machine Performance, Agro-Industry Key Findings Highlights Total fabrication duration reached 29.63 hours with structured process stages Optimal blade configuration identified for uniform slice thickness Economic calculation established selling value with defined profit margin
Steam Assisted Waste Oil Stove Produces High Velocity Flow: Kompor Minyak Limbah Bertenaga Uap Menghasilkan Aliran Berkecepatan Tinggi Fernanda, Ardhi Shefta; Mulyadi; Widodo, Edi; Akbar, Ali
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.2128

Abstract

General Background: Waste management and alternative energy utilization are critical challenges in sustainable engineering systems. Specific Background: Conventional combustion systems often rely on mechanical devices such as blowers to improve combustion, which increases complexity and energy consumption. Knowledge Gap: Limited studies integrate steam boiler systems directly into combustion processes to generate airflow without additional mechanical assistance. Aims: This study aims to design and analyze a steam-assisted combustion stove using waste oil as fuel, focusing on thermal performance, steam generation, and flow characteristics. Results: The system employs a steam boiler with dimensions of 40 × 40 × 40 cm, producing steam at a rate of 0.0170 kg/s with a required heating power of 38,382 W and fuel consumption of 1.2 kg/h. Simulation results show flow velocities ranging from 52.8 m/s in the pipe to 531 m/s at the nozzle, indicating significant acceleration due to geometric constriction. Novelty: The integration of a steam boiler into a combustion system enables the conversion of thermal energy into kinetic energy flow without mechanical air supply devices. Implications: The design provides a practical solution for improving combustion performance using waste-derived fuel while maintaining system simplicity and safety. Keywords: Steam Boiler, Waste Oil Fuel, Combustion System, Flow Velocity, Thermal Design Key Findings Highlights Steam generation reached stable mass flow under defined thermal conditions Nozzle configuration created substantial acceleration in fluid stream Structural design met pressure resistance and operational safety criteria
Co-Authors Agung Yulianto Agus Susilo Nugroho Agusta Praba Ristadi Pinem Ahmad Ahfas Ahmad Firdaus, Ahmad Akbar, Syaeful Akhmad, Afandi Al-Amin , Achmad Nurfadil Alamsyah, Erika Ali Akbar Ananto, Ami Dwi Andri Triyono Angga, Pratama Ansori, Faisal April Firman Daru Arbiantara, Difta Ardiansyah, Ahmad Rehan Arum, Dhika Malita Puspita A’rasy Fahruddin Bambang Syaeful Hadi Basri Basri Boy Isma Putra Candra Darmawan, Candra Chilmi, Muchammad Dessy Wardiah, Dessy Dhika Malita Dwi Angga Oktavianto Efendi, Moch Miqdar Eka Putri Rachmawati Eko Supriyadi Fahruddin, A'rasy Fahruddin, A’rasy Fathoni, Muhammad Rizal Febriyanto, Eko Wahyu Fernanda, Ardhi Shefta Hadi, Soiful Hanani, Nabil Azka Hanif, Muhammad Burhan Harapan, Edi Hastuti Hastuti Hastuti Himam, Muhammad Tauhid Ibnu Widiyanto Indah Sulistiyowati iswanto Iswanto Iswanto Kartika Imam Santoso Khoirunnisa, Safira Kristanto, Arnes Budi Kristianto, Denny Kurniawan, Teguh Tri Martiana, Aris Maulana, Achmad Bagas Mauliana, Metatia Intan Ma’arif, Daffa Nurin Nabil Muhsinatun Siasah Masruri Mukminan MULYADI Muqaffi, Alfan Dabbar Mustafid Mustafid Nursida Arif Nurtriana Hidayati Pamungkas, Wahyu Aji Prantasi Harmi Tjahjanti Pratama Angga Buana Prind Triajeng Pungkasanti, Prind Triajeng Priyambudi, Gagah Deffi Putro, Eko Prasetio Ramadhan, Bayu Surya Ramadhani, Aditya Ramos, Angelou O. Rastri Prathivi Rayyan, Muhammad Faiz Riantika, Rasti Fajar Peni Rifa'atussa'adah, Nahida Rofiq Salam, Rois Nur Saputra, Muhammad Anggie Cahya Setiawan, Luthfi Frans Siti Irene Astuti D Sri Rum Giyarsih Sudharsono, Muhamad Sulis Yulianto Sunaryati, Titin Sunaryati Surjati, Endang Susanto Susanto Syahruddin Syahruddin Titin Winarti Uce Indahyanti Wardani, Kasa Kusuma Wawan Setiawan Windarta, Windarta Zanyc, Yuinta Diaz Aprilia