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All Journal International Journal of Electrical and Computer Engineering International Journal of Reconfigurable and Embedded Systems (IJRES) Bulletin of Electrical Engineering and Informatics INDONESIAN JOURNAL OF APPLIED PHYSICS Pascal: Journal of Physics and Science Learning Journal of Applied Engineering and Technological Science (JAETS) International Journal of Engineering, Technology and Natural Sciences (IJETS) Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Penelitian Pendidikan Fisika JTEIN: Jurnal Teknik Elektro Indonesia Indonesian Journal of Engineering and Science (IJES) Andalasian International Journal of Applied Science, Engineering, and Technology Mejuajua INVENTION: Journal Research and Education Studies Jurnal Informatika Teknologi dan Sains (Jinteks) Aceh International Journal of Science and Technology Riwayat: Educational Journal of History and Humanities Jurnal Ilmiah Teknik Informatika & Elektro (JITEK) Jurnal Penelitian Pendidikan Fisika
Indri Dayana
Universitas Medan Area
Agriculture, Biological Sciences & Forestry Humanities Astronomy 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 Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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Optimization of parabolic photovoltaic and solar thermal tracker model systems using heat transfer fluid Satria, Habib; Maizana, Dina; Dayana, Indri
Bulletin of Electrical Engineering and Informatics Vol 14, No 3: June 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v14i3.8988

Abstract

Renewable energy sources such as photovoltaic (PV) and solar thermal (T) used in tropical Indonesia are still not optimal in converting electrical energy. This is caused by the movement of the sun which is not centered on the surface of the photovoltaic/thermal (PV/T). Based on this, PV/T technology was developed with a parabolic tracker system combined with T control with the aim of optimizing electrical energy conversion. The testing technique was carried out using an experimental method by comparing the installation of PV/T technology with a parabolic tracker system and a flat PV position. In the PV/T parabolic tracker, the supporting components use aluminum foil technology and heat transfer fluid (HTF) to reduce excess heat on the panel surface. The parabolic tracker system is implemented through a centralized system following the sun and aluminum foil and HTF technology function to keep the surface temperature stable. The results of PV performance testing at peak loads carried out at 10:00 am-3:00 pm, the installation of flat PV produced an average DC power of 71.68 Wp and the parabolic tracker system produced an increase in average DC power of 84.57 Wp, while with an increase in power of 17.98% during fluctuating weather conditions.
Pengaruh Musim Hujan di Desember 2022 terhadap Motivasi Belajar Fisika Dasar Mahasiswa Teknik Indri Dayana; Mega Puspita Sari
Jurnal Penelitian Pendidikan Fisika Vol. 7 No. 4 (2022): November 2022
Publisher : Jurusan Pendidikan Fisika FKIP Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/jipfi.v7i4.41

Abstract

Musim hujan di Desember 2022 dengan identitas curah hujan yang deras dan frekuensi yang banyak. Hal ini berdampak pada terhambatnya mobilitas mahasiswa teknik untuk pergi dan pulang kuliah. Udaranya yang dingin menjadikan mahasiswa teknik mengantuk dan seringnya kena hujan menjadikan kondisi kurang fit. Hal inilah yang membuat semangat bekajar mahaiswa teknik di kelas fisika dasar menurun. Teknik analisis data yang digunakan adalah dengan analisis regresi. Dari hasil analisis diketahui bahwa Freghitung= 4,282 dan Freg-tabel = 4,130 (Freg-hitung > Freg-tabel), diambil sampel 36 mahasiswa teknik di kelas fisika dasar sehingga kesimpulan dari penelitian ini adalah terdapat sangat besar pengaruhnya terhadap penurunan semangat belajar selama musim hujan desember 2022 bagi mahasiswa teknik Universitas Medan Area.
Focus Discussion Group (FGD) Diversifikasi Peternakan Pada Lahan Hutan Rakyat Dalam Rangka Produksi Konversi Biomassa di Desa Regemuk, Pantai Labu, Deli Serdang, Sumatera Utara Dayana, Indri; Inda Sari, Dian; Fadlan Siregar, Muhammad; Satria, Habib; Maizana, Dina; Mungkin, Moranain; Winda Sari, Vina; Hermansyah, Hermansyah; Puspita Sari, Mega
Mejuajua: Jurnal Pengabdian pada Masyarakat Vol. 5 No. 1 (2025): Agustus 2025
Publisher : Yayasan Penelitian dan Inovasi Sumatera (YPIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52622/mejuajuajabdimas.v5i1.244

Abstract

Kegiatan Focus Group Discussion (FGD) ini bertujuan untuk mengidentifikasi potensi dan tantangan diversifikasi peternakan pada lahan hutan rakyat dalam mendukung produksi biomassa h di Pantai Labu, Kabupaten Deli Serdang, Sumatera Utara. Melalui pendekatan partisipatif yang melibatkan kelompok tani, instansi pemerintah, akademisi, dan sektor swasta, ditemukan bahwa integrasi sistem silvopastura dan pengolahan limbah ternak menjadi sumber energi terbarukan (biogas dan kompos) berpotensi meningkatkan pendapatan petani sekaligus menjaga kelestarian lingkungan. Hasil FGD menunjukkan bahwa diversifikasi peternakan, seperti integrasi ternak ruminansia kecil dengan pola tanam agroforestri, memiliki potensi meningkatkan pendapatan petani hingga 20–30% melalui optimalisasi lahan dan pemanfaatan limbah biomassa. Selain itu, pendekatan ini dinilai mampu meningkatkan keberlanjutan lingkungan melalui pengurangan pembukaan lahan baru dan peningkatan kesuburan tanah. Sebagai tindak lanjut, direncanakan pengembangan model percontohan (pilot project) serta pendampingan teknis berkelanjutan untuk mendukung implementasi sistem secara lebih luas di kawasan sekitarnya Juga diperlukan penguatan kelembagaan, akses pembiayaan, serta pelatihan teknis untuk mendukung implementasi secara menyeluruh.
Simulation of Cofferdam Calculations Using Geo-Studio Application in Peusangan Hydropower Dam Construction Hermansyah, Hermansyah; Irwan, Irwan; Satria, Habib; Dayana, Indri; Salam, Rudi
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 3 No. 2 (2023): July 2023
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v3i2.82

Abstract

Cofferdam is a building in the form of earth, stone, concrete or masonry filling and holds water, prevents flooding, provides irrigation. The building has many functions such as for agriculture, power generation, and tourist attractions. Cofferdam will also be very helpful in flood control which will control flood water so that it will not overflow excessively which endangers the surrounding community. Besides having great benefits. If the cofferdam collapses (broken) it will cause flash floods that result in casualties. Therefore the cofferdam must be designed safely and technically feasible. The research approach used in this study is a quantitative approach using the 2012 GEO-SLOPE program. The conclusions from the analysis of slope seepage and seepage stability are the Critical Safety Factors for cofferdam stability according to the results of the analysis after running SLOPE/W are 1.711 & 1.512 because it is higher than 1.5 (SNI 8460:2017 Geotechnical Requirements Design, This means that the stability of the cofferdam is safe. The modeling results show that the seepage discharge is 1.81x10-7 m3/s = 1.81x10-4 liters/sec = 15.64 liters/day which is smaller than the maximum allowable discharge of 50 liters/day. So it can be concluded that the seepage discharge is safe.
The Influence of the 2022 World Cup On Engineering Student Enthusiasm Learning in Physic Class Dayana, Indri
Riwayat: Educational Journal of History and Humanities Vol 6, No 2 (2023): Social and Religious Aspect in History, Economic Science and Law
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jr.v6i2.29601

Abstract

The 2022 world cup is one of the much-awaited world events, especially for men. Even though there are some engineering students who are female, they are still dominated by men. The program to watch the world cup ball, whose broadcast time is more often at night or early in the morning, makes engineering students watching drowsy and unfit due to lack of sleep. This has an impact on the enthusiasm for learning in class which makes engineering students' motivation to study decrease.Data analysis technique used is by regression analysis. From the results of the analysis it was found that Freghitung= 4.282 and Freg-table = 4.130 (Freg-count Freg-table), sample of 36 engineering students in physic class was taken so the conclusion of this study is that there is a very large influence decreased enthusiasm for learning during the world cup for engineering students at the University of Medan Area.
Study The Influence Of Light And Distance To Reduce Traffic Accident Dayana, Indri
Invention: Journal Research and Education Studies Volume 2 No 2 juli 2021
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/invention.v2i2.515

Abstract

Traffic accidents are something that every road user wants to avoid, but sometimes these traffic accidents occur suddenly because of poor road infrastructure or due to negligence of the road users themselves. At present there are widespread accidents in the traffic system, this is caused by many factors, one of which is the arrangement of lights and the distance between vehicles on the highway. The number of traffic accidents in Indonesia has increased every year. The number of traffic accidents in Indonesia is in line with the increasing number of motorized vehicles. Good lighting and distance allow people who drive to see objects that are done clearly, quickly and without unnecessary effort, especially adequate lighting gives the impression of a better appearance and a refreshing environment. Good lighting and distance can also provide higher efficiency, can increase productivity and reduce visual difficulties and pressure when driving. Conversely, poor lighting and distance will result in a high level of traffic accidents.
The Effectiveness Of Active Carbon From Sawdust Of Coconut For Reduce To Reduce The Lead Waste Dayana, Indri
Invention: Journal Research and Education Studies Vol. 2 No. 1 (2021): Maret 2021
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/invention.v2i1.516

Abstract

The main objective of this research is the content sawdust of coconut can be processed into activated carbon which can be used to reduce lead waste. The presence of heavy metals in the environment is an environmental problem that needs serious attention. Pollutants are dominated by heavy metal waste, one of which is lead (Pb). PB is classified into dangerous pollutants. In this study, coconut wood powder was used as activated carbon because the price was cheap and could reduce the negative impact on the environment because the sawdust of coconut was a waste in the wood industry. The advantages of activated carbon are its large capacity and absorption, because the pore structure and the presence of chemical functional groups on the surface of activated charcoal such as C = O, C, and CH. The quality of activated carbon is shown by the absorption value of Iod where based on the provisions of SNI 06-3730-1995 the activated carbon is considered to be of high quality if the value of its absorption is close to 750 mg / g.
SOSIALISASI GERAKAN PELESTARIAN LINGKUNGAN DI HUTAN KANAL KECAMATAN MEDAN JOHOR Hermansyah, Hermansyah; Mungkin, Moranain; Satria, Habib; Siregar, Muhammad Fadlan; Sari, Mega Puspita; Dayana, Indri
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2024): Volume 5 No 1 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i1.22223

Abstract

Gerakan pelestarian lingkungan di hutan kanal Kecamatan Medan Johor yang dalam beberapa hari lalu dilakukan oleh Dosen Fakultas Teknik Universitas Medan Area. Pelestarian lingkungan saat ini telah berkembang dan menjalar di Indonesia sebagai upaya penyelamatan lingkungan. Mengingat pesatnya penduduk dan masih rendahnya kesadaran untuk menjaga lingkungan sehingga menimbulkan berbagai permasalahan lingkungan. Untuk memperbaiki kualitas lingkungan hidup maka perlu diadakan beberapa upaya pelestarian lingkungan hidup bekerjasama antara Fakultas Teknik Universitas Medan Area dalam hal ini diwakili Dosen dan mahasiswa bersama masyarakat setempat. Kegiatan ini bertujuan untuk membantu menangani permasalahan lingkungan yang terjadi, memberikan motivasi dan contoh nyata melalui upaya pelestarian lingkungan yang diterapkkan di lingkungan hutan kanal agar mahasiswa memiliki kepekaan, rasa cinta dan perasaan memiliki untuk bersama mengelola serta menjaga kelestarian lingkungan disekitanya. Kegiatan pelestarian lingkungan ini menggunakan metode deskriptif, melalui suatu tindakan nyata dalam upaya pelestarian seperti penanaman bibit pohon, pengadaan tempat sampah dan kerja bakti pembersihan lingkungan di hutan kanal. Kesimpulannya bahwa kegiatan ini dapat terselenggara secara baik dan lancar, hal ini tidak terlepas dari partisipasi dan dukungan berbagai pihak didalamnya. Tidak hanya itu, upaya pelestarian lingkungan hidup yang dilakukan pada lingkungan hutan kanal memberikan manfaat bagi mahasiswa maupun para dosen dan masyarakat setempat. Selain lingkungan hutan kanal menjadi bersih dan sehat, mereka termotivasi untuk melestarikan lingkungan hidup sekalipun dengan hanya menanam pepohonan, membuang sampah pada tempatnya serta gotong royong membersihkan lingkungan disekitarnya.
Co-Authors Adi Rahwanto Aldhi, Muhammad Anwar Syahputra, Sofyan Anwar Syaputra, Sofyan Ayu Fitriani Dadan Ramdan Denny Meisandy Hutauruk Dian Inda Sari Dian Noviandri Dina Maizana Fuadaturrahmah, Fuadaturrahmah Habib Satria Habib Satria Habib Satria Habib Satria Habib Satria Hermansyah Hermansyah Hermansyah Hermansyah Hermansyah Hermansyah Hermansyah Hutauruk Hutauruk Ilham Maulana Indawan, Isnanda Irwan Irwan Irwan Irwan Irwanto, Muhammad Juliaster Marbun Jusoh, Muzzammil Mahpuja Narti Simatupang Martha Rianna Martha Rianna Martha Rianna Mega Puspita Sari Moranain Mungkin Muhammad Fadlan Siregar Muhammad Fauzi Muhammad Khahfi Zuhanda Nurwijayanti Permata Sari Siregar, Ade Puspita Sari, Mega Ridwan Arrasyid Rudi Salam Rudi Salam Sari, Mega Puspita Sijabat, Tonggo Siti Utari Rahayu Syafii . Syafriwel, Syafriwel Syah, Rahmad B. Y. WINATA, SATRIA ANANDA Winda Sari, Vina Yenny Agnes Angela Turnip Yoga Tri Nugraha Zakaria, Zulkarnay Zulkifli Bahri, Zulkifli