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All Journal International Journal of Renewable Energy Development Journal of Degraded and Mining Lands Management JOIV : International Journal on Informatics Visualization Al Ishlah Jurnal Pendidikan Emerging Science Journal JURNAL INTEGRASI JURNAL PENDIDIKAN TAMBUSAI Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Sainstek : Jurnal Sains dan Teknologi Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Pillar of Physics: Jurnal Berkala Ilmiah Fisika JIFP (Jurnal Ilmu Fisika dan Pembelajarannya) MASALIQ: Jurnal Pendidikan dan Sains Georest: Geoscience, Remote Sensing, and Technology Gudang Jurnal Multidisiplin Ilmu International Journal of Renewable Energy Development
Pakhrur Razi
Universitas Negeri Padang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry 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 Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : JOIV : International Journal on Informatics Visualization

 1 
Vulnerability Liquefaction Mapping in Padang City Based on Cloud Computing Using Optical Satellite Imagery Data Razi, Pakhrur; Putri, Amalia; Sri Sumantyo, Josaphat Tetuko; Akmam, -
JOIV : International Journal on Informatics Visualization Vol 8, No 3-2 (2024): IT for Global Goals: Building a Sustainable Tomorrow
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.8.3-2.3480

Abstract

Liquefaction is a significant geological hazard in earthquake-prone locations like Padang City, Indonesia. The phenomenon happens when saturated soil loses strength owing to seismic shaking, resulting in substantial infrastructure damage. Accurate identification of sensitive locations is critical to catastrophe mitigation. This study aims to map water distribution using optical satellite data and estimate its importance as a crucial element in determining liquefaction vulnerability. The Normalized Difference Water Index (NDWI) was used to assess water and vegetation indexes, taking advantage of its sensitivity to water content in varied land surfaces. We recommended using the NIR (near-infrared) and SWIR (short wave infrared) bands with 832.8 nm and 2202.4 nm, respectively, which are sensitive to soil water content. High-resolution satellite data were used to create NDWI maps, highlighting locations with high water saturation. These findings were combined with geological and seismic data to identify liquefaction-prone zones. The study found that locations with high water content, as measured by NDWI, are highly associated with greater liquefaction susceptibility. The findings highlight the importance of water distribution in determining soil behavior during seismic occurrences. This study highlights the value of NDWI as a low-cost and efficient tool for measuring liquefaction vulnerability at the regional level. The technique offers insights into Padang City's urban planning, catastrophe risk reduction, and community preparedness. By identifying high-risk zones, the study aids in making informed decisions to reduce the impact of future earthquakes. Most of the water content change occurred along the coastal line and in the low-lying areas of Koto Tanggah and North Padang sub-districts. The model can be used in other places with similar geological challenges, providing a scalable solution for liquefaction risk assessment.
Development of a Catch-Throwing Skill Analyzer Based on Sensors Komaini, Anton; Kiram, Yanuar; Razi, Pakhrur; Zakaria, Jaffri Bin; Handayani, Sri Gusti; Andika, Heru
JOIV : International Journal on Informatics Visualization Vol 8, No 3-2 (2024): IT for Global Goals: Building a Sustainable Tomorrow
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.8.3-2.2939

Abstract

This research aims to develop a tool for measuring catching-throwing skills using modern, effective, and efficient sensor technology. This tool is designed to increase accuracy in measuring catch-throwing skills. This type of research uses (R&D). This research involved three experts in their field: an electrical expert, an evaluation and measurement expert, and a physicist. A total of 30 participants participated in testing in a small group of 12 people and a large group of 18 people with an age range of 15-20 years. Testing is carried out with questionnaires and direct tests. The statistical analysis used is r-correlation with the help of the SPSS application. The test results show a high alpha coefficient, confirming that this tool is consistent and reliable in collecting data. Three experts carried out practicality testing: Electrical Experts, Evaluation and Measurement Experts, and Physicists. The results show that this tool is efficient, with practicality levels of 98%, 92%, and 89%, respectively. In addition, an excellent level of effectiveness is demonstrated by expert assessment results, which reach 99%, 89%, and 85%. With this tool, researchers and teachers can evaluate object control skills more efficiently and accurately and assist in collecting more comprehensive data. Overall, this tool for measuring throwing and catching skills provides significant innovation and is expected to support research and education in measuring and developing children's motor skills.
Co-Authors A Arifin Abdullah Nur Aziz Abdullah Nur Aziz Addriani, Ranti Adi Suryadi Adree Octova Aisyah Salsabila Dwi Ananda Akmam Akmam Akmam Amali Putra Amalia Putri, Amalia Aminuddin, Jamrud Andika, Heru Anofa Liona Arief Muttaqiin Arifin, A Asrizal Bahri, Aliefa Zunaida Bilalodin Bilalodin Fadila, Husnul Farzand Abdullatif fitri mairizki Gautama, Mohammad Isa Genov Zulmartin Hamdi Hamdi Hamdi Handayani, Sri Gusti Hapsoro, Cahyo A. Harman Amir Hidayati Hidayati Husna, Rahmi Juita Husnul Kausarian Ifdil Ifdil Izumi, Yuta Jamrud Aminuddin Josaphat Tetuko Sri Sumantyo Komaini, Anton Lahara Yanuarsi Marsa, Indira Marzuki Marzuki Mega Oktisa Melnix, Frennadito Muhammad Bohori MUHAMMAD YUSUF Mukhtar Effendi Mukhtar Effendi Mutya Vonnisa Nishi, Katsunoshin Nofi Yendri Sudiar Nofi Yendri Sudiar Nurhayati Nurhayati Nurhayati Nurhayati Putri Aulia R Farzand Abdullatif rahmi juita husna Ramadhan, Ravidho Rena Ramadhani Putri Revielni Sandra Rinadi, Aulia Rozi, Hanifsyah Saputri, Deby Yeriza Silfi sutri Insani Sri Wahyu Hidayati Sunardi Sunardi Sunardi Sunardi Thamrin Thamrin Widia Mai Yetri Widiyani, Agustina Wihantoro Wihantoro Wihantoro Wihantoro Yanfatriani, Elsa Yanuar Kiram Yasmin, Putri Yendri Sudiar, Nofi Yenni Darvina Yohandri Bow Yoszi Mingsi Anaperta Yusefarina Yusefarina Yusnaini, Helmi Zakaria, Jaffri Bin Zulazhari Zulhendra Zulhendra Zulhendri Kamus