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All Journal Edu Research Jurnal Fisika Unand Jurnal Edu Research Jurnal Fisika FLUX Panrita Abdi - Jurnal Pengabdian pada Masyarakat Indonesian Journal of Chemistry SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Ensiklopedia of Journal Jurnal Hilirisasi IPTEKS (JHI) MONSU'ANI TANO Jurnal Pengabdian Masyarakat INTEGRITAS : Jurnal Pengabdian Bubungan Tinggi: Jurnal Pengabdian Masyarakat BERNAS: Jurnal Pengabdian Kepada Masyarakat Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA Jurnal Pengabdian kepada Masyarakat Nusantara Journal of Multidisciplinary Applied Natural Science Jurnal Edu Research Indonesian Journal of Community Empowerment and Service Jurnal Pendidik Indonesia
Dedi Mardiansyah
Universitas Andalas
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Rancang bangun miniatur kereta elektromagnetik sebagai media untuk menjelaskan konsep listrik magnet berbasis laboratorium mini Winarti, Septi; Sohibun; Mardiansyah, Dedi
Jurnal Pendidik Indonesia Vol. 1 No. 2 (2020): Jurnal Pendidik Indonesia
Publisher : Karoteh Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61291/jpi.v3i1.13

Abstract

This study aims to design an electromagnetic train learning media based on a mini-laboratory and test the feasibility of this media in explaining the concept of magnetic electricity in the subtopic of electromagnetic induction. This research is an engineering study. The design of this device consists of three main components: a neodymium magnet 12x5 mm, a non-insulated enamel copper wire 1 mm, and a 1.2 V eneloop battery. The device's validity was assessed in terms of content, media, and device feasibility, which was evaluated by two lecturers, three teachers, and two colleagues using a questionnaire distribution technique. The data analysis technique used in this research is the descriptive analysis technique. Based on the questionnaire results from the experts, an average score of 88.46% was obtained for all assessment aspects, indicating a "very good" rating. Thus, the electromagnetic train media is suitable as a physics learning media to explain the concept of magnetic electricity based on a mini laboratory.
Assessment of LINAC Source Radiation Dose around Healthy Organs Using Treatment Planning System Calculation Fardela, Ramacos; Candra, Ega Septryan; Milvita, Dian; Mardiansyah, Dedi; Ridwan, Ridwan; Diyona, Fiqi; Mousa, Almahdi
Journal of Multidisciplinary Applied Natural Science Vol. 5 No. 2 (2025): Journal of Multidisciplinary Applied Natural Science
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.253

Abstract

The negative effects of increased radiation dose can impact healthy tissue surrounding the target area, necessitating careful management to minimize side effects and meticulous planning in radiation therapy. This study aims to determine the peripheral dose of a 6 MV photon beam and compare the measured values with the estimates from the Treatment Planning System (TPS). Dose calculations were performed using the Analytical Anisotropic Algorithm (AAA) in the ECLIPSETM TPS on a virtual water phantom with a 6 MV photon beam, delivered by a Clinac CX linear accelerator (LINAC) at Unand Hospital. Photons were used with variations in target depth of 1.5, 5, and 10 cm, as well as variations in measuring distances of 3, 5, 7, 10, and 15 cm outside the irradiation field. The area of irradiation used varied of 5×5 and 10×10 cm2. The measurement results based on the distance of the field edge showed that the dose percentage decreased below 10% when passing a distance of 5 cm for a field area of 5×5 cm2, and for a field area of 10×10 cm2, the dose percentage decreased below 10% after passing a distance of 7 cm from the edge of the irradiation field. The peripheral dose intensity in the area outside the target will decrease along with the increasing measurement distance from the edge of the field and the depth due to the interaction of radiation with the medium, which causes the spread and absorption of photons in the medium.
PEMBERDAYAAN EKONOMI RAMAH LINGKUNGAN MELALUI PENGOLAHAN LIMBAH KELAPA: MENUJU NAGARI SUNUA BARAT YANG ECOGREEN Muttaqin, Afdhal; Meqorry Yusfi; Arif Budiman; Dwi Pujiastuti; Sri Handani; Dahyunir Dahlan; Imam Taufiq; M. Ali Shafii; Dwi Puryanti; Zulfi; Elvaswer; Feriska Handayani; Rico Adrial; Trengginas Eka Putra; Ahmad Fauzi Pohan; Dedi Mardiansyah; Ramacos Fardela; Alimin Mahyudin; Nini Firmawati; Astuti; Dian Fitriyani; Della Amelia; Haldis Alvaro; Fiqi Diyona; A. Fadhil Desafa; Zozy Aneloi Noli; Olly Norita Tetra
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 3 (2025)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v6i3.12869

Abstract

Nagari Sunua Barat memiliki potensi limbah sabut kelapa hasil perkebunan kelapa yang melimpah. Kegiatan pengabdian ini bertujuan untuk memberdayakan kelompok tani di Nagari Sunua Barat melalui pelatihan pengolahan limbah sabut kelapa menjadi cocopeat dan cocofiber, yang lebih memiliki nilai ekonomis dan ramah lingkungan. Kegiatan pengabdian kepada masyarakat dilakukan oleh tim dari Fakultas Matematika dan Ilmu Pengetahuan Alam, dimulai dengan tahap perencanaan yang melibatkan mitra kelompok tani untuk mengidentifikasi kebutuhan dan potensi yang ada pada mitra. Kegiatan ini diikuti oleh 47 peserta yang berasal dari kelompok tani dan masyarakat yang ada di Nagari Sunua Barat. Peserta diajarkan tentang pengelolaan sampah limbah sabut kelapa, yang dimanfaatkan menjadi cocopeat dan cocofiber. Metode yang digunakan meliputi demonstrasi, praktik langsung, dan diskusi interaktif. Hasil dari kegiatan menunjukkan antusiasme yang tinggi dari peserta. Sebagian besar mampu memahami dan mempraktikkan teknik yang diajarkan, dengan beberapa peserta mulai memproduksi cocopeat dan cocofiber untuk keperluan pribadi maupun komersial. Pelatihan ini berhasil meningkatkan kesadaran masyarakat akan pentingnya pengelolaan limbah yang berkelanjutan serta memberikan peluang ekonomi baru bagi kelompok tani. Kegiatan ini diharapkan dapat menjadi langkah awal untuk menjadikan Nagari Sunua Barat sebagai sentra pengolahan limbah sabut kelapa, sekaligus mendorong terciptanya masyarakat yang lebih peduli lingkungan dan mandiri secara ekonomi
Green Synthsis dan Karakterisasi Nanopartikel Tembaga dengan Ekstrak Daun Gambir (Uncaria Gambir Roxb) untuk DYE Sensitized Solar Cell Wargiyana, Sarah; Mardiansyah, Dedi; Puryanti, Dwi
Jurnal Fisika Unand Vol 14 No 4 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.4.319-324.2025

Abstract

Research has been conducted on Green Synthesis of copper nanoparticles using gambir leaf extract (Uncaria gambir Roxb) for Dye Sensitized Solar Cell. This study aims to determine the effect of the comparison of molar ratio variations (Cu(NO₃)₂) with gambir leaf extract through green synthesis of copper nanoparticles and I-V test of DSSC produced from copper nanoparticles through green synthesis. Sample preparation was carried out using the green synthesis method with the ratio of gambier leaf extract to (Cu(NO₃)₂) in sample variations of 1:1, 1:2, 1:3, 1:4 and 1:5. Copper nanoparticles were characterized using UV-Vis spectroscopy to determine the absorbance value and energy band gap and DSSC measured using a simple I-V test. UV-Vis spectrophotometer results on copper nanoparticles showed absorbance peaks in the 377 nm - 396 nm wavelength range, and obtained energy band gap values ranging from 2.84-2.91 eV. The resulting copper nanoparticles are round to elongated, due to the phenomenon of aggregation between particles. The efficiency obtained from DDSC is 4.26% and the FF value is 0.56.
Green Synthesis Nanopartikel Tembaga (CuNP) Menggunakan Ekstrak Buah Naga Merah (Hylocereus polyrhizus) sebagai Aplikasi Lapisan Tipis Karim, Afdal; Mardiansyah, Dedi; Dahlan, Dahyunir
Jurnal Fisika Unand Vol 14 No 4 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.4.408-412.2025

Abstract

Copper nanoparticle (CuNP)-based thin films have great potential in various technological applications, such as electronics, catalysts, and sensors, due to their high conductivity value and enhanced surface reactivity. This study aims to fabricate CuNP-based thin films using the spraying method, which is known to be efficient for material deposition on substrates. In the spraying process, copper nanoparticles are sprayed on a transparent glass substrate and dried at room temperature to form a homogeneous thin layer. Characterization of the thin films using UV-Vis spectrophotometer to determine the energy band gap and transmittance value. The results of testing the energy band gap of copper nanoparticles with a ratio of 1, 2, 3, 4, and 5 amounted to 3.03 eV, 3.09 eV, 3.11 eV, 3.17 eV and 3.25 eV. Meanwhile, the transmittance test results show that the percentage of thin layer transmittance ranges from 20% to 90% with good crystal quality and a smaller energy band gap that has high electrical conductivity so that the thin layer produced has a decent quality to be applied to printed electronic devices.
Pengelolaan Laboratorium di SMAN 2 Sipora Kepulauan Mentawai Mardiansyah, Dedi; Mahyudin, Alimin; Wildian, Wildian; Dahlan, Dahyunir; Shafii, Mohammad Ali; Zulfi, Zulfi; Rasyid, Rahmat; Milvita, Dian; Astuti, Astuti; Yusfi, Meqqory; Firmawati, Nini; Oktamuliani, Sri
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 6 No. 1 (2025): Jurnal Pengabdian kepada Masyarakat Nusantara Edisi Januari - Maret
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v6i1.4793

Abstract

Laboratorium adalah fasilitas penting dalam pembelajaran fisika di sekolah yang berperan dalam meningkatkan minat dan motivasi siswa untuk mempelajari fisika. Aktivitas di laboratorium umumnya berupa kegiatan praktikum atau demonstrasi. Agar laboratorium dapat berfungsi optimal sebagai media pembelajaran fisika, pengelolaannya perlu direncanakan dengan baik. Berdasarkan hasil observasi di beberapa SMA di Sumatera Barat, ditemukan bahwa banyak laboratorium kurang dikelola dengan baik sehingga keberadaannya tidak efektif. Siswa jarang diajak untuk praktikum, dan peralatan yang sudah disediakan oleh Dinas Pendidikan sering kali jarang digunakan, sehingga banyak yang rusak karena tidak terpakai. Tata letak dan fasilitas laboratorium sering kali kurang rapi dan belum diinventarisasi dengan baik. Guru fisika mengalami kendala dalam melaksanakan praktikum karena tidak tersedia modul atau buku panduan. Akibatnya, kegiatan praktikum yang seharusnya dilakukan di laboratorium kini hanya dilaksanakan di kelas dengan peralatan yang terbatas, sehingga potensi laboratorium tidak dimanfaatkan sepenuhnya. Atas dasar masalah-masalah ini, tim Pengabdian Kepada Masyarakat (PKM) melakukan pembinaan pengelolaan laboratorium fisika di SMAN 2 Sipora untuk mendukung kelancaran kegiatan praktikum dan proses pembelajaran. Tahapan kegiatan PKM meliputi: 1) Sosialisasi tentang pengelolaan laboratorium, 2) Pengembangan Laboratorium Percontohan Implementasi Merdeka Belajar, 3) Diskusi pembuatan alat-alat praktikum sederhana, 4) Diskusi pembuatan modul atau buku panduan praktikum, dan 5) Monitoring awal serta lanjutan di SMAN 2 Sipora.
Co-Authors A. Fadhil Desafa Aditya Furqon Adrial, Rico Afdal Afdal Afdal Afdal Afdal Afdal, Afdal Afdhal Muttaqin Ahmad Fathoni Ahmad Fauzi Pohan Al Furqon Al Furqon Al Furqon Al- Furqon Al-Furqon Al-Furqon Alimin Mahyudin Alyah Fridayanti Alyah Fridayanti Amanda Salsabila Amanda Salsabila Ameera Iffa Zaafira Ameera Iffa Zaafira Analia, Rika Andriani, Innes Arif Budiman Arif Budiman Arrahman, Berki Astuti Astuti Astuti - Astuti Astuti Atika Maulida Berki Arrahman Berki Arrahman Candra, Ega Septryan Dahlianum Dahlianum Dahlianum Dahlianum Dahyunir Dahlan Damayanti, Elok Dedi Kurniawan Dedi Kurniawan Della Amelia Dian Fitriyani Dian Fitriyani Dian Milvita Dwi Pujiastuti Dwi Pujiastuti Dwi Puryanti Elfi Fauzana Akmal Elfi Fauzana Akmal Elistia Liza Namigo, Elistia Elvaswer Elvaswer Elvaswer Faizah Musra Faizah Musra Fanesha Andrica Fanesha Andrica Fani Anjelina Feriska Handayani Feriska Handayani Irka, Feriska Handayani Fikri, Ikhlasul Fiqi Diyona Fiqi Diyona Fiqi Diyona, Fiqi Fridayanti, Alyah Geby Sri Ayu Oktavia Hafizha Fitri Annisa Hafizha Fitri Annisa Haldis Alvaro Harmadi Harmadi Harmadi Harmadi Harsojo Harsojo Harsojo Harsojo Harsojo Harsojo Herviya Herviya Herviyana Herviyana Ida Bagus Gede Putra Pratama Ika Daruwati, Ika Ikhlasul Fikri Ikhlasul Fikri Imam Taufik Imam Taufiq Imam Taufiq Juli Fardilla Diana Rapitri Juli Fardilla Dina Rapitri Juli Fardilla Dina Rapitri Karim, Afdal Khairul Annisa Fitri Kuwat Triyana Kuwat Triyana Lutfi Ayu Puspita M. Ali Shafii Majid Muthahhari Manik Majid Muthahhari Manik Marzuki Marzuki Marzuki Marzuki Meqorry Yusfi Mohammad Ali Shafii Mora Mora Mora Mora Mora Mora Mousa, Almahdi Muhammad Farid Islami Muhammad Farid Islami Muhammad Irfan Ghivari Muhammad Ridho Isdi Muhammad Ridho Isdi Muldarisnur, Mulda Mutya Vonnisa Nabilla Fauziyah Nabilla Fauziyah Nini Firmawati Nurul Annisa Olly Norita Tetra Putri Andini Putri Andini Putri Andini, Putri Putri, Adinda Mahesa Rahmad Rasyid Rahmad Rasyid Rahmat Rasyid Ramacos Fardela Rani Delvihardini Rani Delvihardini Rani Delvihardini Rial Rifwandi Rial Rifwandi Ridwan, Ridwan Rika Analia Rika Analia Rindi Genesa Hatika Rindina Armysa Rindina Armysa Roto Roto Sohibun -, Sohibun Solly Aryza Sri Handani Sri Oktamuliani Suci Ramda Rena Suratun Nafisah Syarip, Nabilla Fauziyah Syifa Chairunnisa Syifa Chairunnisa Trengginas Eka Putra Trengginas Eka Putra Sutantyo Tringginas Eka Putra Sutantyo Ummi Hajra Dias Ummi Hajra Dias UMMI RASYIDAH Usna, Sri Rahayu Alfitri Vyola Maulana Vyola Maulana Wargiyana, Sarah Wildian Wildian Wildian Winarti, Septi Yeza Febriani Yusfi, Meqqory Zozy Aneloi Noli Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi, Zulfi