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All Journal Agromet Jurnal Teknologi Reaktor Nuklir Tri Dasa Mega JFA (Jurnal Fisika dan Aplikasinya) EnviroScienteae Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Sainstek : Jurnal Sains dan Teknologi Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Pillar of Physics: Jurnal Berkala Ilmiah Fisika Journal of Climate Change Society

Nofi Yendri Sudiar

Department of Physics, Universitas Negeri Padang

Author-ID : 6344260

Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

Published : 17 Documents Claim Missing Document

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Penerapan metode geolistrik tahanan jenis konfigurasi wenner untuk menentukan penyebaran lindi di Tempat Pemprosesan Akhir (TPA) sampah Air Dingin Kota Padang (The application of the wenner configuration resistivity geoelectric method to determine the distribution of leachate in the final waste processing in Air Dingin Padang City) Yori Deswita; Nofi Yendri Sudiar; Fatni Mufit; - Akmam
PILLAR OF PHYSICS Vol 5 (2015)
Publisher : Department of Physics – Universitas Negeri Padang UNP

TPA Air Dingin are landfills located in Padang and positioned near the inhabitant area. The accumulationof waste at TPA Air Dingin can cause environment pollution. The aimed of this research is to determine the resistivity and the spread of leachate in TPA Air Dingin. Estimation of the distribution of leachate below the ground surface use a Resistivity Geoelectrical method with Wenner Configuration. Data were collected by ARES Multielectrode in 3 lines. The data were interpreted using Robust inversion to obtain a 2D model of earth’s surface that consists of depth and resistivity value. The result of this research showed that the kinds of rocks in this area consist of Groundwater, Clay, Sandstone and Andesite. Direction of spread of leachate on the measurements, the distribution of leachate moving from the southeast towards the Northwest

Identifikasi bidang gelincir menggunakan metode geolistrik tahanan jenis konfigurasi Schlumberger di Bukit Lantiak Kecamatan Padang Selatan (The identification of the slip surface using the geoelectric resistivity method of the Schlumberger configuration in Bukit Lantiak, Padang Selatan District) Irepia Refa Dona; - Akmam; Nofi Yendri Sudiar
PILLAR OF PHYSICS Vol 5 (2015)
Publisher : Department of Physics – Universitas Negeri Padang UNP

The identification of slip surface in Bukit Lantiak Padang Selatan has been done. The aim of this research is to know the shape of slip surface, depth of slip surface, and angle of slip surface. Data were collected by Automatic Resistivity Multielectrode in 4 lines with Schlumberger configuration. Interpreted of data was done with Robust Constraint Inversion. The result of this research shows that slip surface is Translation slip. Depth of slip surface are 12,8 m and 4,5 m. Angles of slip surface are 34,980 and 25,940.

Variability in the Occurrence of Sporadic E in the Geminid Meteor Shower using Inosonde BPAA Agam Data Aisyah Apriani Parinduri; - Akmam; Nofi Yendri Sudiar; - Hamdi
PILLAR OF PHYSICS Vol 16, No 2 (2023)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/14471171074

Variability in the appearance of sporadic E in the Geminid Meteor Shower. The appearance of sporadic E does not always exist and suddenly appears, so sporadic E appears as a result of the Geminid Meteor Shower. Therefore, this research aimed to determine the variability in the appearance of sporadic E during the Geminid Meteor Shower. This type of research was descriptive analysis research. This research includes data collection, data processing, and data analysis on sporadic E layers. The data was linked to the Geminid Meteor Shower events on December 12, 13, and 14 in 2014, 2019, and 2020. The results of this research show that there were significant differences in the appearance of the Sporadic E layer at the peak of the Geminid Meteor shower. Where it had increased foEs and h'Es as Sporadic E layer parameters. foEs and h'Es before the peak of the Geminid Meteor Shower were known to be normal with foEs values between 2-4.2 MHz and h'Es at an altitude of 102-147 km. When the Geminid Meteor Shower peaked, foEs increased to 11.67 MHz and h'Es at an altitude of 147 km. After the peak of the Geminid Meteor Shower, there was a decline until it returned to normal with foEs ranging between 2-4.4 MHz and h'Es at an altitude of 99-147 km. An increase in foEs and h'Es was associated with the Geminid Meteor Shower phenomenon, so the Geminid Meteor Shower was variability in the appearance of Sporadic E during the Geminid meteor shower

Carbon Monoxide Measuring System using MQ-7 Sensor with Cloud Storage Irfan Muhammad Zaqi; - Yohandri; - Yulkifli; Nofi Yendri Sudiar
PILLAR OF PHYSICS Vol 16, No 2 (2023)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/13451171074

Carbon monoxide (CO) gas cannot be detected by sight or smell but is highly detectable and is formed from incomplete combustion such as in motor vehicles. Currently monitoring CO gas levels and measurement data at any time cannot be accessed all the time. Therefore, a measuring instrument system with data storage is required. We developed an instrument to measure CO gas levels in the air. The system developed uses the MQ-7 and ESP8266 sensors to produce a CO gas level measurement device with Cloud Storage. This research is a type of engineering research. The measurement technique used is a direct and indirect measurement. The direct measurement technique is done by comparing CO level data from standard tools with measuring instruments. Indirect measurement techniques are carried out by analyzing the data. Based on the research objectives, the specifications of the work tools are the average accuracy percentage of 97.27%, and the precision of 97.31%. Based on these result, the CO gas level measuring tool has a measurement accuracy and precision of close to 100%. So it is concluded that the CO level measuring tool can work properly

Co-Authors - Hamdi - Yulkifli Ahmad Fauzi Aisyah Apriani Parinduri Akmam Akmam Akmam Akmam Asrizal Asrizal Asrizal Azmi Renaldi Renaldi Alrahmadana Fatni Mufit Gautama, Mohammad Isa Hadi Susilo Arifin Hamdi Hamdi Hamdi Hamdi Rifai Ifdil Ifdil Irepia Refa Dona Irfan Muhammad Zaqi Letmi Dwiridal Muhammad Reza Maulana Aliva Pakhrur Razi Plato M. Siregar Randy Sadinda Tsania Suhada Syafriani Syafriani Thamrin Yohandri Yonny Koesmaryono Yonny Koesmaryono Yori Deswita

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Journal : Pillar of Physics: Jurnal Berkala Ilmiah Fisika