Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Majamecha
Duma, Gerard Antonini
Unknown Affiliation
Religion Humanities Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Engineering Mechanical Engineering Public Health Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Sosialisasi Energi Terbarukan dan Pelatihan Perakitan Listrik Tenaga Surya pada Siswa Sekolah Alam Le Cendekia Gowa Syahid, Muhammad; ., Jalaluddin; Mochtar, Andi Amijoyo; Duma, Gerard Antonini; Amme, Rudi; Kasim, Lukman; Arjun, Muh.
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 1 (2024): Community Development
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i1.455

Abstract

Renewable energy is energy that comes from renewable energy sources. Renewable energy sources are energy sources that can be used indefinitely and will never run out because they can be recovered in a relatively short time, including geothermal, wind, bioenergy, sunlight, water flows and waterfalls, as well as movements and temperature differences in ocean layers.” Solar panels are the main equipment in a solar power generation system which functions to convert sunlight energy into electrical energy directly. Nowadays, human dependence on energy concerns almost all aspects of life. Energy reserves originating from fossil fuels throughout the world are estimated to only be up to 40 years for petroleum, 60 years for natural gas, and 200 years for coal. The condition of limited energy sources in the midst of increasing world energy needs from year to year (energy consumption growth in 2004 alone was 4.3 percent), as well as to protect the earth from global warming and environmental pollution makes the demand for immediate realization of new technology for renewable energy sources. Therefore, the Community Service Team of the Department of Mechanical Engineering, Faculty of Engineering, Hasanuddin University held community service at the LE CENDEKIA Nature School on December 14 2023. The aim of this service is to increase understanding regarding renewable energy and carry out simple applications of renewable energy for students. The method of implementing the service is by interview on the importance of renewable energy and training in solar power assembly. There were 25 socialization and training participants. Community service results show an increase in understanding of the importance of renewable energy from 20% to 50%, and knowledge about solar power assembly from 5% to 45%.
Analisis Perbandingan Kerugian Aliran Pada Pipa Jenis PVC dan Galvanis Dengan Menggunakan Elbow 90 Derajat Dahlan, Masbin; Duma, Gerard Antonini; Azis, Nasruddin; Assagaf, Iman Pradana A; Sulfiana, Enni; Amaluddin, Muh. Nurul Haq
Majamecha Vol. 6 No. 1 (2024): Majamecha
Publisher : Program Studi Teknik Mesin, Fakultas Teknik, Universitas Islam Majapahit, Mojokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36815/majamecha.v6i1.3262

Abstract

Pada suatu sistem perpipaan kerugian aliran (head losses) selalu terjadi. Kerugian aliran yang terjadi dalam pipa menyebabkan terjadinya pengurangan debit aliran. Hal ini, disebabkan karena beberapa faktor diantaranya adalah kekasaran permukaan dinding pipa dan akibat adanya sambungan (fittings) pipa. Kekasaran permukaan dari dinding pipa tergantung dari jenis-jenis pipa yang digunakan, seperti pada pipa galvanis dan PVC keduanya memiliki nilai kekasaran permukaan yang berbeda, dimana pipa galvanis memiliki nilai kekasaran permukaan yang lebih besar. Pada pipa PVC dengan debit aliran 0,00027 m3/s menghasilkan total head losses terkecil bernilai 0,2438 m pada metode Hazen-Williams kemudian pada debit aliran 0,00047 m3/s  menghasilkan total head losses terbesar bernilai 1,4285 m pada metode Darcy-Weisbach. Pada pipa Galvanis dengan debit aliran 0,00027 m3/s menghasilkan total head losses terkecil bernilai 0,2623 m pada metode Hazen-Williams kemudian pada debit aliran 0,00047 m3/s  menghasilkan total head losses terbesar bernilai 2,4100 m pada metode Darcy-Weisbach. Sehingga hubungan antara debit aliran dengan kerugian aliran berbanding lurus dan kekasaran permukaan juga berbanding lurus dengan kerugian aliran. Kerugian aliran terbesar ada pada pipa Galvanis dengan debit aliran 0,00047 m3/s dan total head losses 2,4100 m di metode Darcy-Weisbach. Kerugian aliran terkecil ada pada pipa PVC dengan debit aliran 0,00027 m3/s dan total head losses 0,2623 m di metode Hazen-Williams.
EMPOWERMENT OF KARANG TARUNA PATTAPPA VILLAGE THROUGH EXACT TRAINING AND TECHNOLOGY FOR PROCESSING SOLID SANDSTONE Asmiani, Nur; Nawir, Alfian; Duma, Gerard Antonini; Ifa, La; Nur, Taufik
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 10 No. 1 (2026): MARET
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v10i1.3142

Abstract

This community service activity (PkM) is carried out in Pattappa Village, Pujananting District, Barru Regency, South Sulawesi, with a focus on increasing the capacity of Karang Taruna in managing the potential of local natural resources in the form of solid sandstone. Pattappa Village has unique geological potential with high-quality solid sandstones; however, utilization is still limited to simple products and has not provided significant economic added value. Activity implementation methods include preparation stages (observation and pre-test), implementation stage (training through direct discussion and practice of sand processing), and evaluation stage (post-test and observation of practical results). A total of 40 participants participated in this activity, consisting of Karang Taruna managers, village apparatus, and residents, with a high level of participation. Pre-test and post-test analysis results showed significant improvements, with index values of 90.5% including the category of strongly agree. This confirms that Pkm activities are practical, as well as knowledge, skills, and community awareness of local potential. Increased capacity of village youth through Karang Taruna is expected to support the development of value-added craft products based on pejal sand, so they can become the village’s flagship product that supports sustainable economic growth.
Co-Authors ., Jalaluddin Amme, Rudi Arjun, Muh. Assagaf, Iman Pradana A Azis, Nasruddin Dahlan, Masbin Kasim, Lukman La Ifa Mochtar, Andi Amijoyo Muh. Nurul Haq Amaluddin Muhammad Syahid Nawir, Alfian Nur Asmiani Sulfiana, Enni Taufik Nur