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All Journal AQUATIC SCIENCE & MANAGEMENT Jurnal Pendidikan Ekonomi Undiksha Jurnal Simetris Management Analysis Journal Jurnal Dinamika Ekonomi Syariah IAIC Transactions on Sustainable Digital Innovation (ITSDI) TRANSFORMASI : JURNAL PENGABDIAN PADA MASYARAKAT Smart: Journal of Sharia, Tradition, and Modernity Vortex Media Riset Bisnis Ekonomi Sains dan Terapan
Sarif Hidayat, Sarif
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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PENGARUH KECEPATAN FEEDRATE FRICTION STIR WELDING (FSW) TERHADAP SIFAT MEKANIK DAN STRUKTUR MIKRO PADA ALUMINIUM PADUAN AA 2024-T3 Nugroho, Fajar; Ahmadi, Nurfi; Hidayat, Sarif
Vortex Vol 3, No 2 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (494.289 KB) | DOI: 10.28989/vortex.v3i2.1265

Abstract

Friction stir welding (FSW) adalah suatu teknologi pengelasan yang merupakan proses solid-state joining yang bisa digunakan untuk menyambungkan material aluminium dengan mampu las yang rendah. Proses FSW memanfaatkan putaran dari tool yang menggesek dua buah lempengan logam yang akan disambung. Aluminium 2024 T3 dengan ketebalan 4 mm disambung menggunakan proses FSW dengan variasi feedrate yang digunakan 13 mm/menit, 15 mm/menit, dan 25 mm/menit, kecepatan putaran spindle 910 rpm dan kedalaman pin 3 mm. Pengujian yang dilakukan adalah pengujian tarik, kekerasan dan uji struktur mikro pada masing-masing variasi pengelasan.Hasil penelitian menunjukkan bahwa kekuatan tarik dan regangan tarik tertinggi terjadi pada pengelasan dengan feedrate 25 mm/menit sebesar 221,51 MPa dan 3,60. Kemudian kekuatan tarik dan regangan tarik terendah terjadi pada pengelasan dengan feedrate 13 mm/menit sebesar 198,63 MPa dan 2,26. Nilai kekerasan tertinggi di area nugget zone dihasilkan pada pengelasan dengan feedrate 25 mm/menit yaitu sebesar 137 VHN dan nilai kekerasan terendah dihasilkan pada pengelasan dengan feedrate 13 mm/menit yaitu sebesar 105 VHN. Hasil foto struktur mikro pada area nugget zone dan TMAZ (Thermomecanically Affected Zone) mengalami perubahan seiring dengan berubahnya feedrate.
Big Data and Strengthening MSMEs After the Covid-19 Pandemic (Development Studies on Batik MSMEs in East Java) Putri, Rumanintya Lisaria; Hidayat, Sarif; Suprapto; Wahyono, Eko; Sriyono; Rahmawati, Lili
IAIC Transactions on Sustainable Digital Innovation (ITSDI) Vol 4 No 2 (2023): April
Publisher : Pandawan Sejahtera Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/itsdi.v4i2.574

Abstract

This research aims to analyze the effect of online business on economic growth in Java Island, segment and optimize aspects that support the development of internet business in the locus of Java Island, especially East Java Province, and complement it with a The existence of social.The method used is a combination of 5 techniques, namely regression analysis, thematic map visualization, clustering, spatial analysis, and text mining. This research has major implications for the development of MSMEs because MSMEs have succeeded in implementing e-commers in their sales and this greatly affects economic growth. Through the support of other analyses, it will also be known that the factors that support economic growth are more complete. The results show that online business affects the economic growth of provinces in Java. Online business businesses need to continue to be optimized by improving the quality of HDI and web networks, especially in the development priority areas of East Java Province. Programs related to the advanced economy need to be encouraged to align changes in the order of society with MSME activities in adapting to the e-digitalization period. This research has major implications for the development of MSMEs because MSMEs have succeeded in implementing e-commers in their sales and this greatly affects economic growth. Through the support of other analyses, it will also be known that the factors that support economic growth are more complete. This condition is more specific to developing countries and Covid-19 Pandemi.
Strengthening The Capacity Of Muhammadiyah Youth Organizations In Mataram City Based On Strategic Mentoring Hidayat, Rahmad; Dermawan, M Ariy; Hidayat, Sarif; Agustina, Nurillah; Fujiana, Fujiana
TRANSFORMASI : JURNAL PENGABDIAN PADA MASYARAKAT Vol 6, No 1 (2026): April
Publisher : UNIVERSITAS MUHAMMADIYAH MATARAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/transformasi.v6i1.36267

Abstract

This community service activity aims to strengthen the capacity of the Mataram City Muhammadiyah Youth Organization in facing contemporary organizational challenges. The main problem identified was the need for increased in-depth understanding of Governance and Compliance, Strategic Planning and Performance Measurement, and Risk Management and Decision Making. The activity methods included mentoring, intensive material provision, and practical training. Evaluation results showed high program effectiveness. The average initial Pre-test score of 50-60 points increased drastically to 75-80 in the Post-Test, reflects significant improvement in understanding towards the very good category. This improvement recommended the adoption of the training module as an organizational standard and a shift in the focus of follow-up to the implementation of field skills.
Co-Authors Agus Mushodiq, M. Agustina, Nurillah Bakr, Omaima Abou Deiske Adeliene Sumilat, Deiske Adeliene Dermawan, M Ariy Edwar, Frand Eko Wahyono, Eko Fajar Nugroho Fujiana, Fujiana Habib Shulton Asnawi Heryanda, Komang Krisna Ligery, Finny M Muslih M. Yusuf Mantiri, Desy M. H Markus T. Lasut Mukhlishin, Ahmad Murwatiningsih Murwatiningsih, Murwatiningsih Muslimin, A. Natalie D Rumampuk Nurfi Ahmadi, Nurfi Paulus, James Rahmad Hidayat Rahman, Ricky Rahmawati, Lili Rumanintya Lisaria Putri, Rumanintya Lisaria Sriyono SUPRAPTO Suryantoro, Hari Suzanne L Undap Tri Ananto Wiratama, Jansen Yunus, Taslim Z