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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Media Komunikasi Geografi AKADEMIKA Jurnal Wilayah dan Lingkungan JURNAL SPASIAL Jurnal Agribisnis Jurnal Geocelebes IJEMS (Indonesian Journal of Environmental Management and Sustainability) J SIG (Jurnal Sains Informasi Geografi) Indonesian Journal of Electrical Engineering and Computer Science Jurnal Abdimas Dosma (JAD) Jurnal Azimut

Ivan Taslim

Program Studi Geografi Uiversitas Muhammadiyah Gorontalo

Author-ID : 699416

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Languange, Linguistic, Communication & Media Public Health Social Sciences

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Electrical and thermal efficiency of air-based photovoltaic thermal (PVT) systems: an overview Nurul Shahirah Binti Rukman; Ahmad Fudholi; Ivan Taslim; Merita Ayu Indrianti; Intan Noviantari Manyoe; Uce Lestari; Kamaruzzaman Sopian
Indonesian Journal of Electrical Engineering and Computer Science Vol 14, No 3: June 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v14.i3.pp1134-1140

The development of photovoltaic thermal (PVT) system is a very promising area of research. PVT systems using in various applications, such as solar drying, solar cooling, water heating, desalination, and pool heating. With the recognition of the potentials and contributions of PV system, considerable research has been conducted to attain the most advancement which may produce reliable and sustainable PVT system. The cooling system’s design refers to the absorber design which mostly focuses on water and air-based PVT systems. An air-based system has been developed through different absorber configurations, air flow modes and single- or double-pass design. Hence, a summarization on various research and development of air-based PVT system will be presented.

ASESMEN NILAI-NILAI PARIWISATA TERHADAP FITUR GEOLOGI DAERAH BONGO DAN SEKITARNYA SEBAGAI DASAR PENGEMBANGAN GEOWISATA DI PESISIR SELATAN GORONTALO Yasin Septian; Wa Ode Emiria Srikandi Ndangi; Intan Noviantari Manyoe; Ivan Taslim; Emi Prasetyawati Umar; Tedy Harianto Salama; Siti Suhartini Napu
Jurnal Azimut Vol 2 No 2 (2019): Desember 2019
Publisher : Universitas Tamansiswa Padang

Geology is an important aspect in the development of tourism in an area. One of the attractions in a natural tourism location is certainly highly controlled by the geological setting in the area. The purpose of this research is to assess tourism values of geological features in the Bongo and surrounding areas as a basis for developing geotourism on the southern coast of Gorontalo. The research location is at coordinates N 00029â€™42â€ - N 00029â€™51â€ and E 12301â€™26â€ - E 12303â€™32â€. The method used in this study is a surface geological survey, which includes field data collection in the form of lithology, geological structure and geomorphology. The standard used for assessing tourism values is the technical guide for assessing geological heritage resources by the Geological Survey Center. The results showed that the lithology unit of the study area consists of granite, volcanic breccia and reef limestone. The geological structure in the research area is shear fracture with main stress that relatively directed to northwest-southeast. The geomorphic unit of the study area consisted of two units, namely volcanic hills, and marine units. The results of the assessment of tourism values on geological features explain that the Bongo and surrounding areas are included in the medium category. Improvements are needed on low value criteria, namely vulnerability, relationships with other values, and economic level.

ANALISIS STRUKTUR GEOLOGI DAERAH LEATO SELATAN DAN SEKITARNYA, KECAMATAN DUMBO RAYA, KOTA GORONTALO Ratna Sari Madusila; Nurhajidah Muhsin; Intan Noviantari Manyoe; Ivan Taslim; Emi Prasetyawati Umar; Anggun Farwati Abdullah; Fauzul Chaidir A. Usman
Jurnal Azimut Vol 3 No 01 (2020): Volume 3 No. 01
Publisher : Universitas Tamansiswa Padang

The research area is located in South Leato, Dumbo Raya District, Gorontalo City. The research area is consist of Bone Diorite Formation which is in the miocene and the Pinogu Volcano Rock Formation which is in the quarter. The geological structure of the study area recorded in different rock formations is very interesting to be studied. The purpose of this study is to identify the types and general directions of geological structures that control the stress regime in the study area. This research method is in the form of field data collection and studio analysis. Data is collected by the field survey method. Analysis studio in the fracture processing data. Based on observations in the field, the geological structure contained in the study area is controlled by fracture. The type of fracture in the field is shear fracture. The results of the reconstruction of shear fracture in the study area is relatively northwest-southeast and north-south main direction.

ANALISIS KEBIJAKAN INSENTIF DALAM PERLINDUNGAN LAHAN PERTANIAN PANGAN BERKELANJUTAN TERHADAP KETAHANAN PANGAN DI KABUPATEN GORONTALO: kebijakan, perlindungan lahan, berkelanjutan mokoginta, meity; Bahuwa, Kardina; Taslim, Ivan; Djibran, Moh. Muchlis
Jurnal Agribisnis Vol. 26 No. 02 (2024): Jurnal Agribisnis
Publisher : UNIVERSITAS LANCANG KUNING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/agr.v26i02.17942

Histori Artikel Diajukan: 18 DESEMBER 2023 Diterima: Tersedia Online: ABSTRAK Kebutuhan lahan non pertanian cenderung mengalami peningkatan. Hal ini mendorong terjadinya alih fungsi lahan pertanian dan apabila tidak dikendalikan dapat mengancam ketahanan pangan. Penelitian ini bertujuan untuk mengetahui kebijakan insentif dalam perlindungan lahan pertanian pangan berkelanjutan dan bagaimana tanggapan petani terhadap perlindungan lahan pertanian pangan berkelanjutan di Kabupaten Gorontalo. Hasil penelitian menunjukan kebijakan insentif perlindungan lahan pertanian pangan berkelanjutan kepada petani belum semua terealisasikan dari 7 jenis insentif berdasarkan perda Kabupaten Gorontalo Nomor 2 Tahun 2017 hanya ada satu jenis insentif yang tersalurkan yaitu pemberian benih pada petani. Tanggapan petani padi sawah terhadap kebijakan Lahan Pertanian Pangan Berkelanjutan berada direntang setuju dan sangat setuju bersedia mengikuti kebijakan Lahan Pertanian Pangan Berkelanjutan. Kata Kunci: kebijakan, perlindungan lahan, berkelanjutan Sitasi: Jurnal Agribisnis, 2016, 18(2), 1-8 DOI: https://doi.org/10.31849/2503-4375

Photovoltaic thermal (PVT) air collector with monofacial and bifacial solar cells: a review Fudholi, Ahmad; Mustapha, Muslizainun; Taslim, Ivan; Aliyah, Fitrotun; Gani Koto, Arthur; Sopian, Kamaruzzaman
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 10, No 4: December 2019
Publisher : Institute of Advanced Engineering and Science

Photovoltaic thermal (PVT) collectors directly convert solar radiation into electrical and thermal energy. A PVT collector combines the functions of a PV panel and a flat plate solar collector. The development of PVT air collectors is a very promising research area. At present, PVT air collectors are used in solar drying and solar air heaters. On the basis of existing literature, most PVT air collectors were built by using monofacial PV modules. The bifacial PV modules had two active surfaces that could capture solar radiation with its front and rear surfaces. Additional sunlight absorption through both surfaces resulted in an enhanced electrical power generation compared with the conventional monofacial PV. Therefore, bifacial PVT was considered to be useful and attractive due to its potential of enhancing overall system performances, including energy and exergy efficiencies. Findings of this review indicated that PVT air collector with bifacial solar cell produced a larger amount of electrical energy, which was approximately 40% higher than a monofacial PVT. The energy and exergy efficiencies of PVT air collector with monofacial solar cells range from 27% to 94% and from 4% to 18%, respectively. For bifacial PVT, the energy and exergy efficiencies of PVT air collector range from 28% to 67% and from 8.2% to 8.4%, respectively.

Efficiency and energy modelling for PVT air collector with extended heat transfer area: a review Fudholi, Ahmad; Fazleena Musthafa, Mariyam; Taslim, Ivan; Ayu Indrianti, Merita; Noviantari Manyoe, Intan; Yusof Othman, Mohd
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 10, No 4: December 2019
Publisher : Institute of Advanced Engineering and Science

Solar energy is renewable and environment friendly and has been widely used in electricity generation and thermal energy through photovoltaic thermal (PVT) system. This system is beneficial in terms of maximum energy generation and cost of usage. The growing concern on energy sources and their usage has increased the significance and demand for PVT collectors. A PVT air collector consists of a PV panel and a thermal collector system. In PVT air collector, electricity and thermal energy are generated simultaneously. This review focuses on efficiency and energy modelling for PVT air collector with extended heat transfer area. Findings of this review indicated that PVT air collector with extended heat transfer area produced PVT efficiency higher than conventional PVT air collector. The thermal efficiency of PVT air collector for with and without extended heat transfer area are 21-83% and 12-70%, respectively, which the improvement of thermal efficiency is 15.7-42.8%.

Heat transfer and efficiency of dual channel PVT air collector: a review Fudholi, Ahmad; Zohri, Muhammad; Taslim, Ivan; Aliyah, Fitrotun; Gani Koto, Arthur
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 10, No 4: December 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v10.i4.pp2037-2045

Solar energy is free, renewable and environment friendly and has been widely used in electricity generation and thermal energy through photovoltaic thermal (PVT) system. A PVT collector is a combination of a PV panel and a thermal collector in a single unit to simultaneously generate electricity and thermal energy. In this review, mathematical models for dual channel PVT air collectors is presented. This review presents various research and development, as well as heat transfer and thermal modelling of dual channel PVT air collectors. Moreover, various mathematical models that evaluate the performances base on energy and exergy analysis of dual channel PVT air collectors are presented. Energy balance is the basic concept in developing the mathematical models. Generally, steady-state one-dimensional linear first-order differential equations were reported for solution of mathematical model. Energy and exergy efficiencies of dual channel PVT air collectors were 22.5%–67% and 3.9%-58%, respectively.

Driving Factors Influencing Watershed Management and Sustainability: A Systematic Review Taslim, Ivan; Basuni, Sambas; Purwanto, Moh. Yanuar Jarwadi; Santikayasa, I Putu
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 3 (2025): September
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2025.9.3.115-133

Watershed management and sustainability have gained significant global attention due to escalating environmental, socioeconomic, and governance challenges. This study presents a Systematic Literature Review (SLR) aimed at identifying and synthesizing key driving factors that influence watershed management and sustainability. A comprehensive search was conducted exclusively in the Scopus database, covering publications from 2013 to 2023. Through PRISMA-based screening and thematic analysis of 193 relevant studies, a total of 37 driving factors were identified. These factors were classified into three main domains: biophysical (7 factors), socio-economic (13 factors), and institutional (17 factors). The findings reveal that institutional factors are most prominently emphasized, followed by socio economic and biophysical dimensions. This synthesis provides a holistic understanding of the complex and interconnected elements that drive watershed sustainability. The insights derived are intended to inform future research, support evidence-based policymaking, and strengthen integrated watershed management practices across diverse geographic and socio-political contexts. The search employed multiple keyword combinations, including ”watershed”, ”catchment”, ”river basin”, ”drivers”, ”influencing factors”, and ”determinants”, ensuring broader thematic coverage within the Scopus database.

Co-Authors Ahmad Fudholi Ahmad Syamsu Rijal Anggun Farwati Abdullah Aryadi Nurfalaq Ayuba, Sri Rahayu Bahuwa, Kardina Dewi Rahmawaty Isa Djibran, Moh. Muchlis Dwi Randayani Butulipu Elpin Ibrahim Fauzul Chaidir A. Usman Fazleena Musthafa, Mariyam Fitrotun Aliyah Herman Saleh Intan Noviantari Manyoe Jamaluddin Jamaluddin Jaya, Risman Kamaruzzaman Sopian Kamaruzzaman Sopian Koto, Arthur Gani Masrin Melangi Merita Ayu Indrianti Mohamad Mokoginta Mokoginta, Meity M Muh. Firyal Akbar, Muh. Firyal Muhammad Adam Marnas Muhammad Ridho Kayambo Muhammad Zohri Muhammad Zohri, Muhammad Muhardi Mustafa Mustapha, Muslizainun Nurhajidah Muhsin Nurul Shahirah Binti Rukman Nurul Shahirah Binti Rukman Nurul Shahirah Binti Rukman Permana, Aang Panji Prasetyawati Umar, Emi Ratna Sari Madusila Ronal Hutagalung Sambas Basuni Santikayasa, I Putu Sartika Moha Siti Suhartini Napu Siti Suhartini S. Napu Sopian, Kamaruzzaman Tedy Harianto Salama Titin Umi Rahayu Uce Lestari Uce Lestari Ulfan R. Ake Wa Ode Emiria Srikandi Ndangi Yasin Septian Yusof Othman, Mohd

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