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All Journal Gorga : Jurnal Seni Rupa JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Ampere The Indonesian Biomedical Journal Biomedical Journal of Indonesia Jurnal Pertanian Terpadu Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI IJISTECH (International Journal Of Information System & Technology) SRIWIJAYA JOURNAL OF MEDICINE JSI (Jurnal sistem Informasi) Universitas Suryadarma Psikostudia : Jurnal Psikologi Agroekoteknologi Tropika Lembab Poltekita : Jurnal Ilmu Kesehatan JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal of Computer System and Informatics (JoSYC) Community Development Journal: Jurnal Pengabdian Masyarakat TIN: TERAPAN INFORMATIKA NUSANTARA Jurnal REKSA: Rekayasa Keuangan, Syariah dan Audit Ekonomi Bisnis Manajemen dan Akuntansi (EBMA) IJISTECH Jurnal Pengabdian Masyarakat: Humanity and Medicine Hukum Responsif : Jurnal Ilmiah Fakultas Hukum Universitas Swadaya Gunung Jati Cirebon Journal of Community Development Jurnal Teknik Elektro Jurnal Teknik Sipil Dinamis Jurnal Minfo Polgan (JMP) Digital Transformation Technology (Digitech) Innovative: Journal Of Social Science Research Jurnal Pengmas Kestra (JPK) Local History & Heritage Jurnal Informatika Ekonomi Bisnis Tarbiyah: Jurnal Ilmu Pendidikan dan Pengajaran Jurnal Inovatif : Inovasi Teknologi Informasi dan Informatika Jurnal Literasi Pengabdian dan Pemberdayaan Masyarakat Jurnal Indonesia Mengabdi (JIM) jle PUBLIDIMAS Edukatif: Jurnal Pengabdian Masyarakat Economic Development Progress

Surya Darma

Program Studi Pendidikan Biologi FKIP Untan, Pontianak

Author-ID : 249838

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MINIMALISASI HARMONISA BEBAN NON LINIER DENGAN FILTER AKTIF MULTILEVEL INVERTER MENGGUNAKAN SIMULASI SIMULINK Mutiar, Mutiar; Darma, Surya
Jurnal Teknik Elektro Vol 9 No 2 (2019): Jurnal Teknik Elektro
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Palembang

Minimalisasi harmonisa pada beban non linier dengan filter aktif multilevel inverter ini merupakan filter aktif otomatis dengan menggunakan simulasi Simulink. Filter aktif ini menggunakan pensaklaran modulasi lebar pulsa yang sama dan dua rangkaian inverter jembatan penuh yang dihubungkan seri. Topologi filter otomatis di hubungkan parallel ke masukan beban non linier. Beban non linier menggunakan jembatan diode satu fasa yang diparalel dengan kapasitor dan resistor. Hasil dari simulasi menunjukan resistor 10 Ω dan 20 Ω sebelum difilter adalah 23.40% and 48.02%, dan sesudah difiter dengan jembatan penuh multilevel inverter adalah 2.45% and 3.21%.

ANALISA PERHITUNGAN EFESIENSI DAN RUGI-RUGI PADA TRANSFORMATOR DISTRIBUSI KILANG FRAKSINASI PT. PERTA-SAMTAN GAS Darma, Surya; Alferon, Hazalin
Jurnal Teknik Elektro Vol 11 No 2 (2021): Jurnal Teknik Elektro
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Palembang

Dewasa ini Indonesia sedang melaksanakan pembangunan di segala bidang. Seiring dengan laju pertumbuhan pembangunan maka dituntut adanya sarana dan prasarana yang mendukungnya seperti tersedianya tenaga listrik. Saat ini tenaga listrik merupakan kebutuhan yang utama, baik untuk kehidupan sehari-hari maupun untuk kebutuhan industri. Penyediaan tenaga listrik yang stabil dan kontinyu merupakan syarat mutlak yang harus dipenuhi dalam memenuhi kebutuhan tenaga listrik. diperlukan sebuah sistem distribusi yang mampu menyalurkan listrik dari sumber pembangkit menuju ke sasaran dengan mudah, cepat dan efisien. Salah satu instrument yang selama ini digunakan dalam sistem distribusi tersebut adalah transformator.Transformator merupakan salah satu bagian yang paling penting dalam suatu sistem tenaga listrik yang berfungsi untuk mengkonversikan tegangan dari satu tingkat ketingkat yang lainnya melalui gandengan magnetik berdasarkan prinsip elektromagnetik tanpa merubah frekuensi.Gardu induk Distribusi PT.SAMTAN-PERTA GAS mempunyai dua buah transformator, salah satunya transformator yang sampai saad ini masih dioperasikan secara terus-menerus, transformator tersebut perlu penelitian ulang dengan cara menganalisa perhitungan tentang efesiensi transformator, rugi-rugi transformator, yang disesuaikan dengan SPLN tahun 1997

ANALISIS PROTEKSI TRANSFORMATOR DAYA GARDU INDUK PT. BUKIT ASAM (Persero) Tbk TANJUNG ENIM Darma, Surya; Suherman, R.M. Edy; Juliandra, Obie
Jurnal Teknik Elektro Vol 11 No 1 (2021): Jurnal Teknik Elektro
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Palembang

Sistem proteksi pada transformator daya terhadap gangguan internal dan eksternal di Gardu Induk Muara Bungo, dimana suatu transformator daya merupakan peralatan kelistrikan yang sangat penting dalam sistem penyaluran daya listrik kepada konsumen dan dapat bekerja secara terus-menerus. Mengingat pentingnya fungsi dari transformator daya tersebut maka, transformator daya harus dilengkapi dengan proteksi yang sebaik-baiknya agar kemungkinan kerusakan pada transformator daya yang diakibatkan oleh gangguan-gangguan dapat dihindarkan dan dikurangi sampai pada tingkat yang sekecil mungkin. Data penunjang dalam penelitian ini didapat dari buku-buku referensi, serta melakukan observasi langsung kelapangan dimana penelititan ini dilakukan. Pada akhir penelitian, berdasarkan pada hasil analisa dan pembahasan disimpulkan bahwa terdapat sedikit perbedaan antara setting yang terpasang dan setting hasil perhitungan pada proteksi transformator daya terhadap gangguan internal dan eksteral, tetapi perbedaan ini masih dalam batas yang diizinkan dan tidak melebihi setting terpasang maka tidak perlu dilakukan perlu dilakukan perubahan setting

ANALISIS POLA PERUBAHAN LAHAN SAWAH MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS (STUDI KASUS: KELURAHAN MAKROMAN, SAMARINDA) Nugroho, Bagus Adi; Dhonanto, Donny; Darma, Surya
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 2 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.2.2

Changes in rice fields are an important phenomenon that affects the sustainability of agriculture and the environment. This study aims to analyze the pattern of changes in rice fields in Makroman Village, using a Geographic Information System (GIS) approach. The method used is spatial analysis which involves such as spatial data creation, spatial data conversion, spatial data clustering, and mathematical calculation of spatial data. The spatial data used in this study include Ikonos Satellite Images of Makroman Village in 2011 and UAV Aerial Photos of Makroman Village in 2019. The results showed that the area of rice fields in Makroman Village increased from 96.196 ha to 129.343 ha in 2011-2019. Spatially, the increase occurred due to the presence of new rice fields and existing rice fields that did not decrease in number. Shrubs become land uses that have the potential to be converted in rice field extensification activities. GIS application is a method that can be used to answer the problems in this study to the level of detail, but some things that need to be considered in the application of this method are the quality of spatial data, especially remote sensing data used.

Faktor risiko dan gejala osteoporosis pada komunitas dewasa di Desa Ibul Besar Pemulutan Ogan Ilir Sumatera Selatan Umi Partan, Radiyati; Reagan, Muhammad; Hermansyah, Hermansyah; Darma, Surya; Muthia, Putri; Mediarty, Mediarty; Indrajaya, Taufik; Kurniati, Nova; Riviati, Nur; Yuniza, Yuniza
Jurnal Pengabdian Masyarakat: Humanity and Medicine Vol 2 No 3 (2021): Jurnal Pengabdian Masyarakat: Humanity and Medicine
Publisher : Fakultas Kedokteran Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32539/Hummed.V2I3.68

. Osteoporosis is a worldwide health issue. The microarchitecture of the bone is deteriorating, which increases the risk of fracture and disability. As the Indonesian people's life expectancy increases, the incidence of osteoporosis rises, making it more difficult to manage. This community service is carried out as a form of preventive treatment in the adult community in the village of Ibul Besar III Pemulutan Ogan Ilir, South Sumatra, which is one of Sriwijaya University's guided villages, with counseling methods to increase knowledge and health checks for early detection of osteoporosis, as well as calcium supplementation. There were 81 participants in this activity, with numerous dominant risk factors for osteoporosis identified, including female gender, menopausal state, and age above 50. Musculoskeletal symptoms, such as pain in the waist and back, which can be a consequence of osteoporosis, are more common than non-musculoskeletal symptoms.

Manifestasi klinis dan derajat aktivitas penyakit pada penyandang Lupus Eritematosus Sitemik di Rumah Sakit Dr. Mohammad Hoesin Palembang Partan, Radiyati Umi; Hermansyah, Hermansyah; Darma, Surya; Reagan, Muhammad; Muthia, Putri; Salim, Eddy Mart; Kriswiastiny, Rina; Kurniati, Nova; Yuniza, Yuniza; Silitonga, Aira Priamas
Jurnal Pengabdian Masyarakat: Humanity and Medicine Vol 5 No 1 (2024): Jurnal Pengabdian Masyarakat: Humanity and Medicine
Publisher : Fakultas Kedokteran Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32539/Hummed.V5I1.110

Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease that can affect various organs. Clinical manifestations vary from mild to severe depending on the organs involved. Manifestations of SLE in the kidney known as lupus nephritis can occur in 60% of the SLE population and are more common in Asian, Hispanic, Native American, and Black populations, especially in women of childbearing age, involvement of other organs such as neurology is referred to as neuropsychiatric lupus, as well as other organs can manifest such as mucocutaneous lupus, arthritis, pericarditis and other organs. This community service is carried out as a form of preventive treatment with counseling methods to increase knowledge and health checks for early detection of SLE, as well as promotive efforts for the SLE community in the disease polyclinic at Dr. Mohammad Hoesin Palembang, South Sumatra which is one of the teaching hospitals of the Faculty of Medicine, Sriwijaya University. This activity was attended by 35 people with SLE with several risk facts such as female gender and middle adulthood which is quite common, and some of the systemic clinical manifestations experienced are almost fatigue and fever, for musculoskeletal manifestations the most commonly experienced is arthritis, while the most common manifestations of other organs are mucocutaneous disorders. Keywords: Lupus, Autoimmune, Disease Activity

ESG and Credit Risk: Evidence from Indonesian and Malaysian Banks Fithria, Annisa; Darma, Surya
Jurnal REKSA: Rekayasa Keuangan, Syariah dan Audit Vol. 11 No. 2 (2024)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jreksa.v11i2.11252

This study investigates the impact of Environmental, Social, and Governance (ESG) scores on credit risk, specifically Non-Performing Loans (NPL), in Indonesian and Malaysian banks, including both Islamic and conventional institutions. The study employs an unbalanced panel dataset from 12 Indonesian and 10 Malaysian banks over the period 2010-2023. Using fixed-effects regression models, the analysis explores whether higher ESG scores are associated with lower NPL levels. The results reveal that while overall ESG scores and their components—environmental, social, and governance—do not show significant impacts on NPL, bank size and economic growth are positively associated with credit risk. This research contributes to the understanding of ESG's role in financial stability within the banking sector, offering insights for policymakers, regulators, and stakeholders. By addressing a gap in the literature on ESG performance in banks, particularly in developing countries, the study underscores the importance of sustainable banking practices for enhancing financial stability and managing credit risk.

Aplikasi Pupuk Maggot Terhadap Sifat Kimia Tanah, Pertumbuhan, dan Hasil Tanaman Sawi Hibrida (Brassica juncea L) kesumaningwati, roro; Darma, Surya; Ramadhan, Noor Muhammad
Jurnal Agroekoteknologi Tropika Lembab Vol 5, No 2 (2023): Agroekoteknologi Tropika Lembab Volume 5 Nomor 2 Februari 2023
Publisher : Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35941/jatl.5.2.2023.9960.84-91

Penelitian ini bertujuan untuk membandingkan aplikasi berbagai dosis pupuk organik hasil konversi maggot BSF pada sifat kimia tanah dan pertumbuhan tanaman sawi hibrida. Metode penelitian menggunakan Rancangan Acak Lengkap dengan 5 perlakuan dan 5 ulangan. Perlakuan terdiri dari P1 (kontrol), P2 dosis 37 gram, P3 dosis 75 gram, P4 dosis 113 gram, dan 150 gram. Hasil penelitian menunjukkan bahwa pupuk organik hasil konversi maggot BSF sangat berpengaruh terhadap pH tanah dimana terjadi peningkatan pH tanah dari 4,35 menjadi 5,94. C-Organik tanah mengalami peningkatan dari 0,69 % menjadi 1,61%. Nilai nitrogen (N) mengalami penurunan dari 0,17% menjadi 0,02%. Nilai fosfor (P) tersedia meningkat dari 45,60 ppm menjadi 502,40 ppm. Nilai Kalium (K) meningkat dari 152,18 ppm menjadi nilai 450,90 ppm. Pemberian pupuk maggot juga berpengaruh terhadap tinggi tanaman, jumlah daun, dan berat tanaman sawi hibrida. Pengaruh yang sangat signifikan di tunjukan pada perlakuan P3 dengan dosis pupuk 75 gram/polybag.

Analisis Daya Dukung Lahan di Kabupaten Kutai Kartanegara Darma, Surya; Nurhartanto, Nurhartanto; Asrori, Muhamad Amin
Jurnal Agroekoteknologi Tropika Lembab Vol 6, No 1 (2023): Agroekoteknologi Tropika Lembab Volume 6 Nomor 1 Agustus 2023
Publisher : Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jatl.6.1.2023.11684.36-43

v>Daya dukung lahan memberikan gambaran sebidang lahan atas kemampuannya terhadap produksi hayati yang menopangkehidupan manuasia yang tinggal didalamnya atas kebutuhan sejumlah bahan pangan beras. Analisis daya dukung lahanpertanian Kabupaten Kutai Kartanegara untuk mengevaluasi ketersediaan lahan (SL) dan kebutuhan lahan (DL), serta status dayadukung lahan Kabupaten dan masing-masing 18 Kecamatan didalamnya. Data diperoleh dari Badan Pusat Statistik, dinaspertanian dan dinas perkebunan Kabupaten Kutai Kartanegara sertadari kegiatan langsung di lapangan. Status daya dukung lahanmengacu Permen LH No.17 Tahun 2009, membandingkan antara SL dan DL. Hasil penelitian, bahwa status daya dukung lahanKabupaten Kutai Kartanegara defisit, sedangkan secara agregat kecamatan 9 surplus dan 9 defisit. Ketersediaan lahan tertinggi30.479,43 ha di Kecamatan Samboja, terendah 1.631,20 ha di Kecamatan Sanga-Sanga. Kebutuhan lahan tertinggi 33.886,01 haKecamatan Tenggarong, sedangkan terendah 3.348,84 ha Kecamatan Muara Wis. Karya ilmiah ini menyalurkan penemuan yangimplikatif terkait tingkat kebutuhan lahan, status lahan, dan ketersediaan lahan yang relevan terhadap perencanan dan penerapandaya dukung lahan.

EFFECT OF WELDING CURRENT ON MECHANICAL PROPERTIES AND MICROSTRUCTURE OF ALUMINIUM AA1135 ALLOYS BY GAS TUNGSTEN ARC WELDING (GTAW) Suherman, Suherman; Abdullah, Ilmi; Suprianto; Darma, Surya; Hendri Budi Kurniyanto
DINAMIS Vol. 11 No. 2 (2023): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v11i2.14334

Aluminium alloys have a wide range of applications in the defence and aerospace industry, including for the manufacture of fuel tanks. The welding Current and type of filler metal significantly affect the microstructure formed and the mechanical strength of metal joints. This study aimed to determine the effect of the kind of filler metal (ER5356 filler metal) and welding current (140 amperes, 160 amperes, and 180 amperes) on the mechanical properties and microstructural of aluminium alloys AA1135 by the GTAW welding process. The results showed that the dendrite size increased with increasing welding current. Furthermore, the micro-hardness of the weld metal shows a decreasing trend with increasing welding current. The maximum tensile strength was obtained at a current power of 160 amperes, and all specimens failed at HAZ. The fracture surface of tensile test observations using SEM showed brittle fracture for Er5356 filler metal specimens, while on the fracture surface of the base metal tensile test specimens, it was observed to show ductile fracture. Welding with a current strength of 180 amperes has met the standard acceptance criteria because no cracks were found on the face bend or the root bend specimen

Co-Authors . Apriansyah ., Berliyanto ., Wibisono Abdullah, Ilmi Adinata, Triawan Agustria, Amanda Aldian, Muhammad Yudi Alfathoni, Muhammad Ali Mursid Alferon, Hazalin Algifari, M. Ridho Novtriawan Al’amudi, Ivana Supi Angie, Evelyn Annisa Fithria Annisa, Rifka Anriyana, Sri Sukma Aprian, Rara Baitul Yuli Apriansyah Arda, Dina Yulia Argiyanti, Anitya Arikha Saputra Asrar, Leni Devera Asrori, Muhamad Amin Asrullah Asrullah, Asrullah Azmi Ginting, Naufal Bagus Adi Nugroho Bahar Bahar, Bahar Bangun, Sri Melda Berliyanto, Berliyanto Damanik, Abdi Rahim Desi, Efani Dhonanto, Donny Eddy Mart Salim, Eddy Mart Eka Irawan Elhias Nst, Mas Ayoe Fachrezi, Harahap Adrie Fadhila, Adinda Khairunnisyah Fahrunsyah, Fahrunsyah FIKRI HAIKAL Firzada, Fahmi fithry tahel, fithry Ginting, Erwin Ginting, Rosita Hadi Pranoto Harahap, Muhammad Farhan Harianto Harianto Harianto Helena, Shifa Hendrawan, Jodi Hendri Budi Kurniyanto Herman, Naina Azzahra Hermansyah Hermansyah Hermayeni, Hermayeni Hertanto, Rusdian Heru Satria Tambunan, Heru Satria Hery Widijanto Hidayat, Wahyu Handoyono Husna, Auliya Ul Ibni Aura Sasabela Idris, Suria Darma Ikha Safitri Ilham Syahputra Saragih IMANG, NDAN Indra Gunawan Indrajaya, Taufik Indrawan, Yudhistira Fauzy Irmayani Irmayani John Juliandra, Obie Khairul Amri Kriswiastiny, Rina kurniati, nova Kushadiwijayanto, Arie Antasari Liliana Puspa Sari Lubis, Yuliani Mardiati Manesah, Dani Mardiati Mardiati MARIA BINTANG Matra, Ikahariya Pratiwi Mediarty, Mediarty Mega Sari Juane Sofiana Mikhael, Rodry Minsas, Sukal Monang, Sori Muchsin, Kasron Muhammad Reagan Muharraran, Firdha Mulya, Mhd. Ade Mulyadi Mulyadi Mulyadi, Asri Muthia, Putri Muthia, Putri Mutiar Mutiar, Mutiar Nasution, Muhammad Iqbal Nefi Darmayanti Nora Idiawati Nur Riviati, Nur Nurdiansyah, Sy. Irwan Nurdiansyah, Syarif Irwan Nurhartanto, Nurhartanto Nurhasanah Nurhasanah Nurrohman, Aji Okprana, Harly Overnandes, Overnandes Paranoan, Ria Rachel Parinduri, Anggi Isnani Perbata, Rangga Wira Polem, Haga Putra Arza Prayitno, Dwi Imam Purnomo, Aji Putra, Dian Eka RACHMAT HIDAYAT Radiyati Umi Partan, Radiyati Umi Rahim Damanik, Abdi Rahman, Dedy Rahman, Nopijal Rizki Rahmayanti, Putri Intan Ramadani, Alpin Ramadhan, Noor Muhammad Rani, Nesa Mutia Rezeki, Rezeki Rizky Khairunnisa Sormin Rizqa Amelia, Rizqa Robiansyah, Wendi Roro Kesumaningwati Rudiyanto Rudiyanto, Rudiyanto S, Budiman Sagala, Very Edward Charles Sahara, Natasha Taqwa Salsabila, Ghaisani Samosir, Marsiti Jalianti Samura, Jul Asdar Saputra, Rizky Nanda Saputra, Sardinal Sarwoto Sarwoto, Sarwoto Setiawan, Candra Budi Siadari, Eva Nava Sari Sigit Wibisono Silitonga, Aira Priamas Sirait, Abadihon Fazli Siregar, firman Goliath Ardyna Siregar, Sri Hilma Siti Aliyah Sri Wahyuni Suhairi Suhairi Suherman, R.M. Edy Suherman, Suherman Sukal Minsas Sumarno . Syahputri, Aprilia Taufan Purwokusumaning Daru, Taufan Purwokusumaning Tia Nuraya Triandy, Okta Triyono Budi Santoso Umi Partan, Radiyati Usman, Khairul Veithzal Rivai Zainal Warsidah, Warsidah Wibisono Wibisono Widodo Saputra Yulianto kusnadi Yuniza, Yuniza Yusman, Yanti Yusuf Arief Nurrahman Zahari, Cut Latifah Zahrawani, Anggie

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