Article Per Year (5 Year)
p-Index From 2021 - 2026
4.142
P-Index
This Author published in this journals
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 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 BAREKENG: Jurnal Ilmu Matematika dan Terapan JURNAL PENDIDIKAN TAMBUSAI 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 Jurnal Alat Berat Geosfera Indonesia
Edi Widodo, Edi
Magister Sistem Informasi Universitas Diponegoro
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

Published : 37 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 37 Documents
Search

 1   2   3   4 
NaOH Treatment Revolutionizes Strength of Fiber Composites Globally: Perlakuan NaOH Merevolusi Kekuatan Komposit Serat Secara Global Pamungkas, Wahyu Aji; Widodo, Edi
Indonesian Journal of Innovation Studies Vol. 25 No. 4 (2024): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v25i4.1183

Abstract

This study investigates Sansivera fiber-reinforced composite materials treated with 15% NaOH alkaline liquid for different durations using the hand lay-up method. The aim is to determine the optimal treatment duration that enhances the tensile properties of these composites. Results indicate that longer NaOH treatment periods positively impact tensile strength, with the best outcomes observed at 15% treatment for 8 hours. These findings contribute to improving the mechanical performance of Sansivera fiber composites for various industrial applications. Highlight: Sansivera composites strengthen with 15% NaOH for 8 hours. Hand lay-up method enhances industrial applicability. Optimal treatment duration for Sansivera fibers is highlighted. Keyword: Sansivera fiber composites, NaOH alkaline treatment, Tensile strength enhancement, Hand lay-up method, Industrial applications
Pengaruh Media Pendingin Pasca Pengelasan MAG terhadap Kekerasan dan Struktur Mikro Baja SPHC Kristanto, Arnes Budi; Tjahjanti, Prantasi Harmi; Widodo, Edi; Mauliana, Metatia Intan
Jurnal Mesin Nusantara Vol 8 No 2 (2025): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v8i2.25241

Abstract

Tujuan penelitian ini adalah untuk melihat bagaimana media pendingin pasca pengelasan MAG mempengaruhi kekerasan dan struktur mikro baja SPHC (Plate Steel Hot Rolled Coiled). Pengelasan dilakukan menggunakan metode Metal Active Gas (MAG) dengan media pendingin air, oli, dan udara. Untuk menguji kekerasan, metode Rockwell skala B (HRB) digunakan. Di sisi lain, mikrostruktur diamati pada daerah weld metal, zona panas yang terpengaruh (HAZ), dan base metal. Hasil penelitian menunjukkan bahwa, jika dibandingkan dengan media pendingin oli dan udara, media pendingin air menghasilkan kekerasan tertinggi. Kekerasan diperoleh pada weld metal sebesar 74,99 HRB, area HAZ sebesar 90,12 HRB, dan base metal sebesar 81,39 HRB. Pengamatan mikrostruktur menunjukkan fraksi perlit tertinggi pada media pendingin air, sebesar 75% pada area HAZ dan 69% pada base metal, sementara fraksi ferit turun. Secara keseluruhan, perubahan sifat mekanik dan struktur mikro baja SPHC sangat dipengaruhi oleh variasi media pendingin dan lokasi daerah pengelasan.
Pengaruh Variasi Komposisi Serbuk Kulit Jagung, Kuningan, dan Aluminium terhadap Kekerasan dan Ketangguhan Komposit Kampas Rem Non-Asbes Tjahjanti, Prantasi Harmi; Widodo, Edi; Mauliana, Metatia Intan; Darmawan, Candra
Jurnal Mesin Nusantara Vol 8 No 2 (2025): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v8i2.25242

Abstract

Kampas rem non-asbes diperlukan sebagai alternatif yang aman dan ramah lingkungan untuk menggantikan kampas rem berbahan asbes. Penelitian ini bertujuan menganalisis pengaruh variasi komposisi serbuk kulit jagung, serbuk kuningan, dan serbuk aluminium terhadap kekerasan dan ketangguhan komposit kampas rem. Tiga variasi komposisi disiapkan dengan perubahan fraksi serat kulit jagung sebesar 50%, 40%, dan 30%, sementara fraksi logam ditingkatkan secara proporsional. Pengujian meliputi uji kekerasan Shore D dan uji impak Charpy. Hasil menunjukkan bahwa peningkatan kandungan logam meningkatkan kekerasan komposit dari 62 menjadi 78 Shore D, sedangkan penurunan kandungan kulit jagung menurunkan energi impak dari 12,57 J menjadi 6,98 J. Komposisi 50% kulit jagung, 25% kuningan, dan 25% aluminium memberikan keseimbangan paling optimal antara kekerasan dan ketangguhan. Komposit ini dinilai potensial sebagai material kampas rem non-asbes yang aman dan memiliki performa mekanik memadai.
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.
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.
Co-Authors A'rasy Fahruddin Agung Yulianto Agusta Praba Ristadi Pinem Akbar, Syaeful Akhmad, Afandi Al-Amin , Achmad Nurfadil Alamsyah, Erika Ali Akbar Ananto, Ami Dwi Ansori, Faisal Arbiantara, Difta Bambang Syaeful Hadi Basri Basri Boy Isma Putra Candra Darmawan, Candra Chilmi, Muchammad Dessy Wardiah, Dessy Dwi Angga Oktavianto Efendi, Moch Miqdar Fathoni, Muhammad Rizal Febriyanto, Eko Wahyu Harapan, Edi Hastuti Hastuti Hastuti Himam, Muhammad Tauhid Ibnu Widiyanto Indah Sulistiyowati iswanto Iswanto Iswanto Khoirunnisa, Safira Kristanto, Arnes Budi Kristianto, Denny Kurniawan, Teguh Tri Martiana, Aris Maulana, Achmad Bagas Ma’arif, Daffa Nurin Nabil Metatia Intan Mauliana Muhsinatun Siasah Masruri Mukminan 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 Ramadhani, Aditya Ramos, Angelou O. Riantika, Rasti Fajar Peni Rifa'atussa'adah, Nahida Rofiq Salam, Rois Nur Setiawan, Luthfi Frans Siti Irene Astuti D Sri Rum Giyarsih Sulis Yulianto Surjati, Endang Susanto, Susanto Syahruddin Syahruddin Uce Indahyanti Wardani, Kasa Kusuma Winarti, Titin Windarta, Windarta Zanyc, Yuinta Diaz Aprilia