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All Journal POSITRON Jurnal Fisika Unand Jurnal Pengabdian UntukMu NegeRI JOIV : International Journal on Informatics Visualization Emerging Science Journal Journal of Physics: Theories and Applications Jurnal Penelitian Pendidikan IPA (JPPIPA) Communications in Science and Technology Jurnal Hilirisasi IPTEKS (JHI) Jurnal Ilmu Fisika MONSU'ANI TANO Jurnal Pengabdian Masyarakat BERNAS: Jurnal Pengabdian Kepada Masyarakat Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Indonesian Journal of Community Empowerment and Service

Muldarisnur, Mulda

Department Of Physics, Faculty Of Mathematics And Natural Sciences, Andalas University

Author-ID : 702396

Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Simulasi PhET Sebagai Laboratorium Virtual dalam Peningkatan Pemahaman Konsep Fisika Siswa SMAN 3 Painan, Pesisir Selatan Sri Oktamuliani; Betta Centaury; Salim Muhaimin; Afdal Afdal; Rico Adrial; Muldarisnur Muldarisnur; Afdhal Muttaqin; Zulfi Zulfi; Alimin Mahyudin
Warta Pengabdian Andalas Vol 28 No 4 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.28.4.509-513.2021

Learning media is an essential aspect in explaining or visualizing fundamentals of physics that are difficult to understand. Learning media with simulations is increasingly beneficial when Indonesia is affected by the COVID-19 pandemic, which requires distance learning or online education to be implemented. The community service of the Physics Department of Andalas University aimed to introduce PhET simulations as a virtual laboratory to improve understanding of Physics fundamentals for students at SMAN 3 Painan, Kab. Pesisir Selatan, West Sumatra in 2021. Preparation of community service begins with preparing a practicum module from a simulation of the topic of Physics. The assessment of increasing students' understanding of simulation is carried out in Hooke's law module. The number of participating students was grouped into control students (10 people) and students with Hooke's law PhET simulation training (10 people) by giving pre-test and post-test treatments. The t-test analysis shows that the control group and the PhET simulation produced the same output (p = 0.05) at pre-test. It means that the abilities of both groups were the same during the pre-test. In contrast to the post-test case, the PhET simulation group produced higher output than the control group. It means that students' ability in Hooke's law simulation PhET training experienced a significant increase in understanding (p < 0.05). This community service activity can help improve students' understanding to learn the physics fundamentals in SMAN 3 Painan.

Determination of Geothermal Fluid Characteristics in Pawan and Pendalian IV Koto Villages, Rokan Hulu Regency, Riau Province Using Geochemical Methods Rifa Lihayati; Muldarisnur Muldarisnur; Marzuki Marzuki
Jurnal Penelitian Pendidikan IPA Vol 8 No 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1491

Geothermal in Pawan and Pendalian IV Koto Villages is one of the post-volcanic geothermal areas in the Rokan Hulu Regency. This study aims to determine the characteristics of geothermal fluids and estimate reservoir temperature based on geothermometer estimation. The research method used in the study consisted of several stages, namely field data collection and fluid geochemical analysis. The research results from 12 hot springs plotted on the Cl-Li-B triangle diagram show that all hot water samples are dominated by Cl, indicating that the hot springs are far from the geothermal reservoir. The Cl-SO4-HCO3triangle diagram shows that all of the hot springs are bicarbonate water types dominated by HCO3. The Na-K-Mg triangle diagram shows that all fluid samples are in the immature water area, which indicates that the fluid has undergone a reaction with other elements or the influence of meteoric water is quite dominant. The results of calculations with a geothermometer, the estimated reservoir temperature in the geothermal area is in the range of 160.69Â°-176.76Â°C, which is included in the medium-temperature reservoir system. Geothermal in this area can be used as the geothermal potential for developing geothermal power plants.

Program Handsanitizer dan Masker Kain Gratis bagi Masyarakat Kurang Mampu di Sekitar Kampus Universitas Andalas dalam Rangka Mencegah Penularan COVID-19 Afdal Afdal; Marzuki Marzuki; Muldarisnur Muldarisnur; Ardian Putra; Trengginas Eka Putra Sutantyo; Dwi Pujiastuti; Mutya Vonnisa; Fadilla Monica; Yoci Darwita Putri; Sucy Lestari Wirma; Novia Dwi Agusri; Eldiani Arifya
Warta Pengabdian Andalas Vol 27 No 2 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.27.2.95-103.2020

COVID-19 has become a terrifying thing for everyone. The government has made several decisions to prevent the spread of this disease, such as the program of physical distancing where economic, educational, entertainment, social, and even religious activities are requested to be carried out at home. The physical distancing policy also has a negative impact. This program results in reduced community mobility and a sluggish economy. Many people working in the informal sector with a daily income are experiencing difficulties. They struggle to meet their daily needs, especially buying face masks and hand sanitizers. This problem has inspired our community service team at the Department of Physics FMIPA Andalas University, West Sumatra (Indonesia), to make a program to overcome this problem by distributing 400 pieces of cloth masks and 120 bottles of hand sanitizer accessible to the public. This activity was very beneficial for the community, shown by their enthusiasm when the stock of cloth masks and hand sanitizers was gone in one hour. Most people do not use masks in outdoor activities, not because they do not want to wear them, but because of economic constraints. There is a need that is more important than a mask. To prevent the spread of COVID-19, especially to the poor, the government must provide them with free masks.

Synthesis of Supercapacitor from Cocoa Fruit Peel Activated Carbon for Energy Storage Rahma Fikri Nuradi; Mulda Muldarisnur; Yuli Yetri
Jurnal Ilmu Fisika Vol 14 No 2 (2022): September 2022
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.14.2.86-94.2022

The supercapacitor electrode has been synthesized using activated carbon from cocoa pods. Activated carbon was prepared by first drying the raw materials under the sunlight and followed by oven drying, pre-carbonization, milling, sieving, and chemical activation with 0.3 M and 0.4 M KOH solution. After chemical activation, the activated carbon was printed into pellet form, carbonized at a temperature of 600 °C, followed by physical activation at a temperature of 700 °C for four hours before polishing. We found that the optimum conditions are 700 °C and 0.4 M. The density of the obtained carbon electrode is 0.810 g/cm3. The SEM micrographs show the formation of pores with a diameter of 0.44 μm and 0.98 μm. The carbon content in the electrode sample measured using electron dispersive spectroscopy is 91.49%. The XRD data shows that the carbon electrode is amorphous with a diffraction angle (2θ) at 23.569° and 44.781°. The optimum specific capacitance of the supercapacitor is 140.2 F/g obtained for the sample activated for 2.5 hours.

Enhancement of Light Absorption in the Active Layer of Organic Solar Cells using Ag:SiO2 Core-Shell Nanoparticles Fahendri Fahendri; Ilham Perdana; Zulfi Abdullah; Mulda Muldarisnur
Jurnal Penelitian Pendidikan IPA Vol 8 No 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2393

Organic solar cells still suffer from relatively low conversion efficiency despite significant progress. An Ag:SiO2 core-shell nanoparticle embedded inside the active layer of an organic solar cell is expected to enhance light absorption. Light absorption within the active layer consisting of 70 nm thickness PEDOT: PSS and P3HT: PCBM was calculated using the finite element method for a variable diameter of the silver core, the thickness of the SiO2 shell, and the relative position of nanoparticle inside the active layer. The diameter of the Ag nanoparticle varies from 20 to 50 nm, the thickness of SiO2 varies from 1 to 4 nm, and the position was shifted vertically to 70 nm. The maximum light absorption in the active layer is obtained for silver nanoparticles with a diameter of 40 nm and a SiO2 thickness of 1 nm. The optimum position of the core-shell nanoparticle was found to be not at the interface between the PEDOT: PSS and P3HT: PCBM layers but a little bit shifted down into P3HT: PCBM layer. The highest increase of light absorption, compared to without Ag:SiO2, is 210%, much higher than reported in the literature. Increasing absorption is related to the excitation of surface plasmon resonance of Ag:SiO2 nanoparticles leading to the local field and scattering enhancement in the active layer of the organic solar cell

Optimalisasi Pemanfaatan Media Online Phet Simulation Untuk Upaya Peningkatkan Pemahaman Konsep Fisika di SMA N 2 Harau Ramacos Fardela; Dedi Mardiansyah; Meqorry Yusfi; Elistia Liza Namigo; Afdal; Mutya Vonnisa; Muldarisnur; Harmadi; Imam Taufiq; Ahmad Fauzi Pohan; Astuti; Afdhal Muttaqin; Dian Fitriyani; Dwi Pujiastuti; Sri Handani; Dwi Puryanti; Trengginas Eka Putra Sutantyo; Zulfi; Feriska Handayani Irka; Alimin Mahyudin; Nini Firmawati; Dian Milvita; Sri Oktamuliani; Sri Rahayu Alfitri Usna; Rico Adrial
Indonesian Journal of Community Empowerment and Service (ICOMES) Vol. 2 No. 2: December 2022
Publisher : UNIB Press

Fisika menganut metodologi ilmiah (sains) yang memuat tiga kegiatan terpadu dan membentuk daur (cycles) empirico-logico-verification yang pertama kali dirintis oleh I. Newton yaitu (1) pengamatan gejala-gejala alam (kegiatan empiris melalui fisika eksperimen), (2) Penalaran untuk menjelaskan hasil pengamatan tersebut dan ekstensinya sehingga mampu menghasilkan ramalan mengenai gejala baru (kegiatan berlogika melalui fisika teori) dan (3) pengujian mengenai kesesuaian ramalan tersebut dengan realitas alam (kegiatan verifikasi melalui fisika eksperimen). Keberadaan laboratorium di sekolah-sekolah menjadi kunci keberhasilan dalam memperkenalkan tiga kegiatan terpadu tersebut. Sekolah Menengah Atas Negeri (SMAN) 2 Harau, Kabupaten Lima Puluh Kota merupakan sekolah di bawah naungan Provinsi Sumatera Barat dengan jarak sekitar 138 km dari Jurusan Fisika FMIPA Universitas Andalas tepatnya berada di Kecamatan Harau. Dari informasi yang diperoleh masih terbatasnya sarana dan prasarana seperti jumlah peralatan praktikum. Berdasarkan hal tersebut, tim pengabdian Jurusan Fisika FMIPA Universitas Andalas akan melaksanakan rangkaian kegiatan pengabdian masyarakat di SMA N 2 Harau dengan pemanfaatan media online salah satunya Phet- Simulation. Hasil pengabdian menunjukkan 90 % siswa mengatakan setuju dan sangat setuju bahwa kegiatan seperti ini memberikan manfaat bagi pemahaman materi di bidang Fisika. Kegiatan seperti ini perlu dilakukan lebih banyak oleh Tim Pengabdian sehingga masyarakat merasakan keberadaan perguuruan tinggi yang ada didaerahnya. Kata kunci: PhET Colarado; Simulasi Fisika; dan Pengabdian Masyarakat

SOSIALISASI DAN PEMETAAN POTENSI TANAH LONGSOR MENGGUNAKAN METODE MIKROSEISMIK DAN GEOLISTRIK DI KAWASAN OBJEK WISATA BUKIT NOBITA Marzuki Marzuki; Mutya Vonnisa; Ahmad Fauzi Pohan; Arif Budiman; Imam Taufiq; Trengginas Eka Putra Sutantyo; Elistia Liza Namigo; Dian Milvita; Alimin Mahyudin; Nini Firmawati; Muldarisnur Muldarisnur; Afdal Afdal; Dahyunir Dahlan; M. Ali Shafii; Afdhal Muttaqin; Rico Adrial; Dedi Mardiansyah; Harmadi Harmadi; Zulfi Zulfi; Geby Sri Ayu Oktavia; Fani Anjelina; Nurul Annisa
Jurnal Hilirisasi IPTEKS Vol 6 No 2 (2023)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v6i2.655

Nobita Hill is one of the areas being developed as a tourist attraction in the city of Padang. Above Nobita Hill is a beautiful view, and you can see the picture of Padang City. However, the hilly topography with steep slopes makes this area prone to landslides. This activity aims to map the potential for landslides on Novita Hill. Activities start from preparation, implementation in the field, and evaluation. Field activities are carried out in two stages. The first stage is an experiment to map the landslide potential. The second stage is socialization. The target audience for this activity is the Village Head of Jua Nan XX Village and its officials and the community around Nobita Hill. The results of the study and mapping were disseminated to the village administration and community leaders involved in the development of the Bukit Nobita tourism area, which was carried out on November 16, 2022. The result of tourist objects often changes land use and cover. However, mitigation of the potential for landslides in this area has never been done. Therefore, the Andalas University Physics Department team mapped the potential for landslides on Novita Hill for six months, using microseismic and geoelectric methods. This activity obtained a map of the distribution of dominant frequencies, a map of the distribution of amplification, and an identification of slip planes concerning the potential for landslides on Nobita Hill. Furthermore, the results of the mapping and mitigation efforts have been disseminated to the village administration and community leaders involved in the development of the Bukit Nobita tourism area. This activity was carried out well. The landslide potential distribution map obtained from this activity is input for the community and stakeholders in developing the Buki Nobita tourist attraction that is safe from disasters.

Mapping of Sensing Performance of Concentric and Non-Concentric Silver Nanoring Mulda Muldarisnur; Ilham Perdana; E. Elvaswer; Dwi Puryanti
Emerging Science Journal Vol 7, No 4 (2023): August
Publisher : Ital Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/ESJ-2023-07-04-04

Sensors play a critical role in improving overall human quality of life. They have been employed in most aspects of our lives. A recently emerging sensing platform is based on plasmonic resonance at the boundary of metals and dielectrics. Localized surface plasmon resonances–based sensors offer miniaturization, a simple setup, and relatively high sensitivity for real-time measurements. The reported figure of merit (FOM) of the LSPR-based sensor is generally limited, primarily due to its broad resonance peak. Nanorings composed of metal nanoparticles are known for their broad-range resonance tunability, high field localization, and large sensing area. Asymmetry of the nanoring with the introduction of core offset relaxes the selection rule for mode mixing, thus resulting in a narrower resonance peak. This may overcome broad resonance peak restriction. Concentric and non-concentric nanorings were simulated using the boundary element method implemented with the MNPBEM toolbox. We map the performance of nanoring sensors over a wide range of geometrical variations, namely, diameter, ring shell thickness, and the offset of the inner ring to the center of the outer ring wall (core offset). Sensitivity and FOM were found to rely substantially on the nanoring size parameters. The sensing performance map helps to obtain optimized nanoring parameters for the intended spectral range region. The obtained high sensitivity and FOM are much higher than the data available in the literature over visible and NIR ranges. The findings demonstrate the potential of nanorings for biosensing applications. Doi: 10.28991/ESJ-2023-07-04-04 Full Text: PDF

PENGAYAAN MATERI FISIKA : INDUKSI ELEKTROMAGNETIK DI SEKOLAH MENENGAH ATAS Ramacos Fardela; Zulfi Zulfi; Afdhal Muttaqin; Marzuki Marzuki; Dedi Mardiansyah; Mora Mora; Muldarisnur Muldarisnur; Harmadi Harmadi; Rahmad Rasyid; Dahyunir Dahlan; Elvaswer Elvaswer; Imam Taufiq; Wildian Wildian; Trengginas Eka Putra Sutantyo; Feriska Handayani Irka; Dwi Puryanti; Rani Delvihardini
MONSU'ANI TANO Jurnal Pengabdian Masyarakat Vol 6, No 2 (2023)
Publisher : Universitas Muhammadiyah Luwuk

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32529/tano.v6i2.2992

The concept of electromagnetic induction is very important in understanding and developing modern electrical technology. Some factors cause students to often find it difficult to understand electromagnetic induction material in school is that this material involves abstract concepts such as magnetic flux, magnetic field changes, and emf. For some students, understanding these concepts may be difficult due to a lack of direct experience or concrete representations. Enrichment of physics material on electromagnetic induction has been implemented at SMA N 1 Gunung Talang. This service activity aims to improve students' understanding of the basic concepts of Electromagnetic Induction in Class XII. This service consists of three stages including: preparation, implementation and evaluation. The evaluation of this activity was carried out by comparing the pre-test results before enrichment and the post-test scores of students after being given enrichment material by the lecturer (service team). The results obtained show an increase in student knowledge towards understanding the concept of electromagnetic induction. This service activity can be an effort for school and university cooperation to support student success in understanding physics concepts that are considered complicated

Peningkatan Pembelajaran Fisika di SMAN 2 Gunung Talang Kabupaten Solok Melalui Kegiatan Pengabdian Masyarakat. Dedi Mardiansyah; Wildian Wildian; Afdhal Muttaqin; Muldarisnur Muldarisnur; Ramacos Fardela; Afdal Afdal; Ahmad Fauzi Pohan; Alimin Mahyudin; Nini Firmawati; Dian Milvita; Sri Oktamuliani; Rico Adrial; Dwi Puryanti; Sri Rahayu Alfitri Usna; Elistia Liza Namigo; Trengginas Eka Putra Sutantyo; Zulfi Zulfi
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2024)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v5i1.7489

Hukum Newton merupakan prinsip dasar dinamika yang merinci hubungan antara gaya dan pengaruhnya terhadap gerak suatu benda tertentu. Konsep ini dirumuskan dalam tiga hukum yang dikenal sebagai Hukum Newton 1, Hukum Newton 2, dan Hukum Newton 3. Hukum Newton merupakan bagian dari mata Pelajaran Fisika. Mata Pelajaran fisika merupakan salah satu mata Pelajaran yang dianggap susah bagi sebahagian siswa-siswi, sehingga diperlukan kegiatan pengayaan agar ilmu fisika menjadi lebih mudah bagi siswa-siswi. Kegiatan pengabdian adalah memberikan pengayaan materi hukum Newton kepada kelas XI SMA N 2 Gunung Talang. Tujuan kegiatan ini memberikan tambahan ilmu terkait dengan materi hukum Newton. Metode yang dilakukan adalah persiapan pelaksanaan, pelaksanaan kegiatan, monitoring evaluasi, pembuatan laporan akhir dan pembuatan luaran pengabdian. Kegiatan ini merupakan bagian dari pengabdian Masyarakat mengenai pengayaan mata Pelajaran Fisika di SMA N 2 Gunung Talang yang dilaksanakan mulai dari bulan Oktober-November 2023. Dari hasil kegiatan ini dapat dilihat adanya peningkatan persentase penguasaan materi dari rata-rata 49,8% menjadi 79,8 %.

Co-Authors Abi Syaibah Adine Melossa Famia Adrial, Rico Afdal Afdal Afdal Afdal Afdhal Muttaqin Afrineldi, Rendi Afza, Vikra Yudha Yolanda Ahmad Fauzi Pohan Akrajas Ali Umar Aldilla, Muhammad Syaugi Alimin Mahyudin Amrullah, Yasir Anak Agung Istri Sri Wiadnyani Andini Ramadhani Anggini, Aulia Anla, Anla Fet Hardi Apriani, Akmecia Risqa Ardhiati, Fitria Ardian Putra Astuti Astuti - Astuti Astuti Aulia Anggini Betta Centaury Cecep Irwanda Cen Rahman Dahyunir Dahlan Dahyunir, Dahyunir Damayanti, Elok Dedi Mardiansyah Dian Fitriyani Dian Milvita Disti Nabila Suci Dunnas, Irsya Dwi Pujiastuti Dwi Puryanti Ebriyen Zeni Eldiani Arifya Elistia Liza Namigo, Elistia Elvaswer Elvaswer Exaudi Pratama Rajagukguk Exaudi Pratama Rajagukguk F Marlow Fadilla Monica Fahendri Fahendri Fahendri, F. Famia, Adine Melossa Fani Anjelina Faula Rahmi Febrielviyanti, - Feriska Handayani Irka, Feriska Handayani Fitria Ardhiati Geby Sri Ayu Oktavia Gusthia, Melisa Weno Haiqal, Helmi Harmadi Harmadi Harmadi, - Helmi Haiqal Helmi Septaria Herlin Huda, Erin Ficrah Ilham Perdana Ilham Perdana Ilham Perdana AT Imam Taufiq Imam Taufiq Irsya Dunnas Irwanda, Cecep Kurniawan, Rengga Adit Lubis, Muhammad Siddiq Ilyas M. Ali Shafii Mahardhika, Muhammad Khaishar Margani, Taufik Try Marzuki Marzuki Marzuki Marzuki Maulidan, Ikhwan Fikri Meqorry Yusfi Mieke Wulandari Mora Mora Muftahul Rizka Muhammad Khaishar Mahardhika Muhammad Siddiq Ilyas Lubis Muhammad Syaugi Aldilla Mutya Vonnisa Nasution, Widi Mulia Nini Firmawati Nola Fridayanti Nola Fridayanti Nola Fridayanti, Nola Novia Dwi Agusri Novianti, Noni Novirza, Resti Nurmi, Fatiyah Aghni Yati Nurul Annisa Perdana AT, Ilham Rahma Fikri Nuradi Rahmad Rasyid Rahman, Cen Rahmatunisa, Sefina Rahmawati Yusri Rahmi Suryani Rahmi, Faula Rajagukguk, Exaudi Pratama Ramacos Fardela Ramadhani, Andini Ramona, Fransischa Rani Delvihardini Rendi Afrineldi Rengga Adit Kurniawan Resti Novirza Ridwan, Jaenudin Rifa Lihayati Rizchi Aulia Utami Rizka, Muftahul Sadikin, Siti Naqiyah Salamah, Ummi Salim Muhaimin Septriani, Yulni Solly Aryza Sri Handani Sri Oktamuliani SRI RAHAYU Sri Rahayu Suci, Disti Nabila Sucy Lestari Wirma Suryani, Rahmi Syaibah, Abi Syukri - Syukri Syukri Trengginas Eka Putra Sutantyo Ummi Salamah Usna, Sri Rahayu Alfitri Utami, Rizchi Aulia Vikra Yudha Yolanda Afza Wellia, Diana Vanda Widi Mulia Nasution Widi Mulia Nasution Wildian Wildian Wulandari, Mieke Yoci Darwita Putri Yuli Yetri Yulia Eka Putri, Yulia Eka Yulni Septriani Yusri, Rahmawati Zeni, Ebriyen Zulfi Zulfi Abdullah Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi

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