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All Journal Jurnal Pemberdayaan Masyarakat Madani (JPMM) Jurnal Fisika dan Terapannya Optika : Jurnal Pendidikan Fisika Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Jurnal Ilmiah Wahana Pendidikan Journal of Science and Science Education (JoSSEd) Jurnal Pijar MIPA
Latief, Muh. Fachrul
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mathematics Neuroscience Physics Social Sciences Other

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Application of Solar Energy Bank as a Energy Source for Fisherman Community Supu, Idawati; Ahmadi, Haerul; Latief, Muh. Fachrul
Jurnal Pemberdayaan Masyarakat Madani (JPMM) Vol. 7 No. 2 (2023): Jurnal Pemberdayaan Masyarakat Madani (JPMM) (DOAJ & SINTA 3 Indexed)
Publisher : Fakultas Ekonomi dan Bisnis Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JPMM.007.2.02

Abstract

Lopo is one of the village in Batudaa Pantai District and the center of the communitys socio economic activities. The major source of livelihood for the people in Loopo Village is by utilizing local potential in the coastal area so that majority of the fisherman with category of living below the poverty line. Thus, a literature review was carried out to suumarize stages and processes for developing coastal economic potential and environmental management as well optimizing creative economic potential as an effort to improve quality of life for the coastal communities of Lopo Village, which includes the use of advanced materials recharge energy bank was made from silicon solar panel. The results program was a form installation of solar energy bank 220 Voltage that can be used by fisherman. The society had used continuously which the product was a result by this program. This tool is very useful for fishing activities at sea at night because it is a lighting tool to replace the flashlights that fishermen have been using.
The Effect of Temperature Differences on the TEG-Based Conversion of Thermal Energy into Electrical Energy Lapananda, Nuraliva F.P; Arbie, Asri; Yunus, Muhammad; Latief, Muh. Fachrul; Kurniasari, Septiana; Meidji, Icha Untari
Journal of Science and Science Education Vol. 5 No. 2 (2024): October
Publisher : Pascasarjana, Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jossed.v5i2.9170

Abstract

Thermoelectric Generator (TEG) is an energy conversion device used as an electricity generator to create hot electric currents through temperature differences. This research aims to determine the effect of time on temperature differences from burning rice husks (Oryza sativa L.) in series and parallel configurations. This research method was carried out experimentally by burning rice husk biomass in a kiln and utilizing the heat of the fire to convert it into electrical energy. The TEG total of 48 TEG pieces which produce the highest current in the series configuration produces the highest with respective values ​​of current 0.09 A and voltage 1.02 V, and the parallel configuration TEG produces the highest with respective values ​​of current 0.98 A and voltage 0.25 V. The highest temperature difference reaches 30.5°C in the series configuration and 31.8°C in the parallel configuration. The longer the burning time, the more significant the resulting temperature difference. Likewise, the greater the electric current and voltage, the longer the burning time.
TRANSFER KALOR KONDUKSI PADA PELAT ALUMUNIUM 2 DIMENSI DENGAN MENGGUNAKAN METODE FORWARD TIME CENTRAL SPACE (FTCS) Nonti, Efan Fajri Ramadhan; Mursalin, Mursalin; Latief, Muh. Fachrul
OPTIKA: Jurnal Pendidikan Fisika Vol. 8 No. 2 (2024): OPTIKA: Jurnal Pendidikan Fisika
Publisher : Department of Physics Education, Faculty of Teacher Training and Education, Universitas Flores

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/optika.v8i2.4871

Abstract

Perpindahan kalor adalah energi yang bergerak dari suatu tempat ke tempat lain akibat perubahan suhu dalam suatu sistem atau objek. Perpindahan kalor dapat terjadi melalui konduksi, konveksi, dan radiasi, dengan perpindahan secara konduksi terjadi karena suhu yang lebih tinggi pada suatu objek berpindah ke tempat dengan suhu lebih rendah. Penelitian ini bertujuan untuk mensimulasikan perpindahan kalor secara konduksi dua dimensi pada medium pelat aluminium menggunakan metode Forward Time Central Space (FTCS). Simulasi dilakukan melalui analisis numerik menggunakan software MATLAB, dengan perbandingan terhadap solusi analitik untuk mengevaluasi distribusi perpindahan kalor yang terjadi. Hasil simulasi menunjukkan distribusi perpindahan kalor yang divisualisasikan serta tingkat keakuratan metode numerik FTCS dibandingkan solusi analitik. Persentase keakuratan yang diperoleh sebesar 65,19%, menunjukkan bahwa metode FTCS kurang optimal untuk simulasi perpindahan panas dua dimensi pada pelat aluminium. Studi ini memberikan kontribusi dalam memahami keterbatasan metode FTCS dalam simulasi numerik perpindahan kalor dan mengusulkan potensi metode alternatif untuk akurasi yang lebih baik.
Karakterisasi Sifat Fisik Bioplastik Berbasis Pati Kulit Pisang Goroho dengan Penambahan ZnO Devita Irawati Putri; Jahja, Mohamad; Yunginger, Raghel; Latief, Muh. Fachrul; Ramadani, Andi Indra Wulan Sari
JFT : Jurnal Fisika dan Terapannya Vol 12 No 1 (2025): Juni 2025
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v12i1.53106

Abstract

An effective way to address the plastic waste problem is by minimizing the use of non-biodegradable plastics. One approach is to develop biodegradable plastic packaging that is environmentally friendly. This research used Goroho banana peel starch, this type of banana is used because it has good potential with a starch content of 80.89%. In this research, variations in ZnO concentration of 1%, 2%, 3%, 4%, and 5% w/w were conducted. This research aims to determine the characteristics of physical properties of bioplastics with the addition of ZnO. This research uses a laboratory experimental method through several processes, namely goroho banana peel starch extraction and bioplastic manufacturing. The results indicated that varying concentrations of ZnO significantly influenced the physical and biodegradation properties of the bioplastic products. The physical properties of the bioplastics produced have met the Indonesian National Standard (SNI) for water uptake of 21.5% and biodegradation of 60 days. FTIR results show that the functional groups of bioplastics are identical to the constituent functional groups, namely starch, so that their properties resemble the properties of their constituents, which are easily degraded. The most optimum bioplastic is BPZ 2 with the addition of ZnO at 2% w/w, which produces water uptake of 1.859% and degradation time of 12 days.
Thermal Performance of Public Green Space using Palm Fiber Net-Based Green Canopy and Passion Fruit (Passiflora Edulis) Vegetation Muksin, Engelina; Jahja, Mohamad; Setiawan, Dewa Gede Eka; Ramadani, A Indra Wulan Sari; Djafar, Abdi Gunawan; Latief, Muh. Fachrul
Computational And Experimental Research In Materials And Renewable Energy Vol. 8 No. 1 (2025): May
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/cerimre.v8i1.53398

Abstract

This study aims to evaluate the thermal performance of green canopies in public green spaces (RTH), both outdoors and indoors, as an environmentally friendly solution. The method involved measuring temperature and humidity over a five-month period with four observation intervals. The data were analyzed using the Temperature-Humidity Index (THI) and compared with thermal comfort standards based on the Indonesian National Standard (SNI). The results show that at 0% plant coverage, the THI values fall into the "comfortable to slightly uncomfortable" category during the period from 19:00 to 08:00. In contrast, at 81.25% plant coverage, THI values remain in the "comfortable to slightly uncomfortable" range from 21:00 to 09:00. Relative humidity met the SNI standard of 75%. Furthermore, the outdoor temperature decreased by 4.9 °C, while the indoor temperature decreased by 3.5 °C. These findings indicate that the presence of green canopies, particularly in private green spaces, significantly reduces both outdoor and indoor temperatures as the percentage of plant coverage increases.Keywords: Public Green Space, Green Canopy, Temperature Humidity Index, Indonesian National Standards
Properti Cakrawala Peristiwa pada Lubang Hitam Schwarzschild dalam Latar Alam Semesta Tertutup yang Berekspansi Latief, Muh. Fachrul; Ramadani, Andi Indra Wulan Sari
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 9 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.13603701

Abstract

A closed universe model containing a constant and positive vacuum energy density (cosmological constant) has been studied. By analyzing the McVittie metric, it can be shown directly that for an expanding universe, the Hubble parameter at the event horizon for all static symmetric black holes is the same. As for the cosmological constant, black holes will not expand as the universe expands. In addition, the existence of the Hubble voltage is also explained which can affect the speed of the universe's expansion in certain areas.
Studi Sifat Fisik dan Kekuatan Tekan Material Komposit Serat Eceng Gondok dan Kulit Jagung Ramadani, Andi Indra Wulan Sari; Latief, Muh. Fachrul
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 11 (2024): Jurnal Ilmiah Wahana Pendidikan 
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.13605106

Abstract

The high demand for materials with unique properties such as composites, especially in increasingly massively produced structural applications, requires the industry to switch from synthetic fiber reinforced composites such as fiberglass to composites with natural fibers. The use of natural fibers as fillers not only considers their environmentally friendly properties but also the nature of natural fibers which tend to have low density so that they are expected to be able to provide unique physical and mechanical properties to engineered composite materials. This study examines how the physical properties and compressive strength of composites with epoxy matrices and two types of natural fiber fillers, namely water hyacinth and corn husks. The results of this study indicate that alkali treatment in the preparation of corn husk and water hyacinth fiber samples significantly affects the density, porosity and compressive strength of the resulting composites. In addition, the uniformity of fiber orientation and the number of fibers per unit area also contribute positively to the physical properties and compressive strength of natural fiber composite samples.
Testing of Soil Moisture and Temperature Sensors in an Automatic Plant Watering System Based on the Internet of Things (IoT) Yudoyono, Susilo; Setiawan, Dewa Gede Eka; Yunus, Muhammad; Latief, Muh. Fachrul; Meidji, Icha Untari
Jurnal Pijar Mipa Vol. 20 No. 7 (2025): in Progress
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i7.10585

Abstract

The implementation of automated plant watering systems in the agricultural sector utilizes sensor technology based on the Internet of Things (IoT). This study aims to evaluate the performance of soil moisture and temperature sensors utilizing the IoT in an automated plant watering system. The sensors used are the YL-69 sensor to determine soil moisture and the DS18B20 temperature sensor to determine soil temperature. Both sensors are connected to the NodeMCU ESP8266 microcontroller. Testing was conducted from 07:00 to 17:00 WITA, with a 1-hour interval for data collection, monitored using the IoT on the blink application on the cellphone. Then, the data obtained is analyzed to determine the values of error and accuracy. The results obtained on the soil moisture sensor have an average error of 0.989% with an average accuracy of 99.011%. Meanwhile, the results obtained on the soil temperature sensor have an average error of 1.240% with an average accuracy level of 98.760%. The lower the error value, the better the sensor performance indicates the sensor's ability to read data that is close to the actual value of the comparison tool. Likewise, the higher the level of sensor accuracy, the better and more reliable the sensor is when used in an IoT-based soil temperature measurement system. This value indicates that the sensor's performance has a very high level of reliability and precision in detecting soil moisture and temperature in real-time. This system can be applied in agricultural technology education and vocational training programs.
Co-Authors Abdi Gunawan Djafar Ahmadi, Haerul Andi Indra Wulan Sari Ramadani Asri Arbie Devita Irawati Putri Dewa Gede Eka Setiawan Jahja, Mohamad Kurniasari, Septiana Lapananda, Nuraliva F.P Meidji, Icha Untari Muhammad Yunus Muksin, Engelina Mursalin . Nonti, Efan Fajri Ramadhan Supu, Idawati Yudoyono, Susilo