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All Journal ComEngApp : Computer Engineering and Applications Journal Teknika TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Sinergi IJEMS (Indonesian Journal of Environmental Management and Sustainability) Indonesian Journal of Electrical Engineering and Computer Science Community Development Journal: Jurnal Pengabdian Masyarakat Karya Kesehatan Journal of Community Engagement
Muhammad Abu Bakar Sidik
Universitas Sriwijaya
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Medicine & Pharmacology Nursing Public Health Veterinary

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Structural and Optical properties of Multiwalled Carbon Nanotubes Modified by DBD Plasma at Atmospheric Pressure Norain Sahari; Zolkafle Buntat; Zulkifli Azman; Zainuddin Nawawi; Muhammad Abu Bakar Sidik; Muhammad Irfan Jambak
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 1: February 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i1.5945

Abstract

Structure, chemical, and physical properties of Multiwalled Carbon Nanotubes (MWCNTs) after modification by dielectric barrier discharge (DBD) at atmospheric pressure is investigated using Transmission Electron Microscopy (TEM), Raman and Uv-vis-NIR spectroscopy. Effects of plasma treatment time on MWCNTs are analyzed. TEM result shows that during the short period of plasma treatment time of 5 minutes, the tube surface experienced a few damages. With increase in plasma treatment time, the tube surface is damaged to a certain extent. Intensity ratio, ID/IG through Raman analysis shows a good agreement with TEM. The values of ID/IG of the modified MWCNTs are larger than those of pristine MWCNTs. An increase of ID/IG indicates that considerable defects are produced on the surfaces of MWCNTs. The treated MWCNTs has energy band gap compared to zero band gap of untreated MWCNTs. It is believed that the defect site of MWCNTs can modify the electronics properties of MWCNTs from being metallic to semiconducting structure, which is applicable for almost all electronics device applications.
NO2 Gas Sensing Properties of Carbon Films Fabricated by Arc Discharge Methane Decomposition Technique Elnaz Akbari; Zolkafle Buntat; Syed Muhammad Zafar Iqbal; Zulkifli Azman; Norain Sahari; Zainuddin Nawawi; Muhammad Irfan Jambak; Muhammad Abu Bakar Sidik
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 1: February 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i1.6004

Abstract

In this work, a set of experiments has been conducted using arc discharge Methane decomposition attempting to obtain carbonaceous materials (C-strands) formed between graphite electrodes. The current-voltage (I-V) characteristics of the fabricated C-strands have been investigated in the presence and absence of two different gases, NO2 and CO2. The results reveal that the current passing through the carbon films increases when the concentrations of gases are increased from 200 to 800 ppm. This phenomenon is a result of conductance changes and can be employed in sensing applications such as gas sensors.
Electrical Potential Distribution in Polymethyl Methacrylate-Graphene Oxide Nanocomposites Zainuddin Nawawi; R. F. Kurnia; N. F. A. Isa; Z. Buntat; D. R. Yuniarti; M. I. Jambak; Muhammad Abu Bakar Sidik
Indonesian Journal of Electrical Engineering and Computer Science Vol 4, No 2: November 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v4.i2.pp256-262

Abstract

Research work of polymer nanocomposites in high voltage insulator becomes interest nowadays. Polymer based and nanofillers are the core components in polymer nanocomposites. By adding such a big amount of nanofiller it would enhance the electrical and mechanical properties of polymers.  However as for today, a little percentage of nanofiller concentration could dramatically enhanced the properties of the polymeric material. Recent research of graphene oxide (GO) nanofiller has brought to this project interest.  This paper presents several methods that have been published to development PMMA (poly methyl methacrylate)/GO nanocomposites and a simulation of PMMA/GO in order to investigate the potential distribution. 
Correlation analysis between lightning flashes and rainfall rate during a flash flood thunderstorm Norbayah Yusop; Mohd Riduan Ahmad; Tan Shea Ching; Shamsul Ammar Shamsul Baharin; Mona Riza Mohd Esa; Muhammad Abu Bakar Sidik
Indonesian Journal of Electrical Engineering and Computer Science Vol 28, No 3: December 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v28.i3.pp1322-1329

Abstract

This paper presents the correlation analysis between lightning flashes and the rainfall rate of a thunderstorm when a flash flood event happened in Melaka on 11 August 2020. Four types of data have been collected from the electric field mill (EFM), fast antenna (FA) system, constant altitude plan position indicator (CAPPI) radar and world wide lightning location network (WWLLN). Two storms have been detected by the EFM occurred between 04:00:00 and 14:00:00. The FA system recorded a total of 33 lightning flashes had detected with the highest number occurrence of flashes which positive narrow bipolar event (+NBE) around 21 flashes, the maximum rainfall rate and reflectivity have been detected by radar during the first storm were 8 mm h-1 and 37 dBZ, respectively (light rain). During the second storm, there was a total of 980 lightning flashes detected by the FA system with the highest number occurrence of flashes around 429 flashes (IC), the highest value of rainfall rate and reflectivity is 50 mm h-1 and 50 dBZ, respectively (heavy rain). Analyses of the lightning and rainfall rate data also show a close link between the occurrence of major thunderstorms systems and flash flooding on a regional scale.
A review on interferometry lightning mapping system and its deployment in Palembang Indonesia Oktaviani, Wiwin A.; Sidik, Muhammad Abu Bakar; Ahmad, Mohd. Riduan; Jambak, Muhammad Irfan
Bulletin of Electrical Engineering and Informatics Vol 13, No 6: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i6.7267

Abstract

Climate change effects influence the sustainability of wind and photovoltaic energies as renewable sources. Similarly, infrastructure for renewable energy is structurally vulnerable to lightning strikes. Hence, a system for detecting and monitoring lightning activity is necessary to predict and adapt to climate change trends and to enhance the lightning protection system's capability. One such system for observing and locating lightning is very high frequency (VHF) interferometry. Various factors, such as the baseline distance between sensors, the frequencies used, and the quality of the analyzed signal, will influence the system's accuracy. This paper discusses these factors through an extensive literature review. This study aims to identify the factor that most significantly affects the system's accuracy and to determine the technical adjustments required to improve this accuracy. Enhanced precision in the interferometry system will provide a more detailed view of lightning activity, thereby aiding in the climate change prediction that could impact electricity generation from renewable sources. Accurate lightning location detection can also serve as a basis for designing effective lightning protection systems for renewable energy infrastructure.
Development of insulation oil based on Palm Oil Mill Effluent with nano silica Sidik, Muhammad Abu Bakar; Amalia, Dewi; Agustina, Tuty Emilia; Dinata, Noer Fadzri Perdana; Fitria, Syarifa; Anwar, Wiwin Armoldo Oktaviani
SINERGI Vol 28, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2024.2.018

Abstract

Various studies and research have been conducted to find alternatives to liquid insulation. One that is considered the most potential is vegetable oil since it has various advantages, including non-toxic, biodegradable, renewable waste products due to reactions in the form of CO2 and water, high flash points, and better thermal characteristics. In this study, Palm Oil Mill Effluent (POME) was used as the raw material for insulation oil with the addition of an additive in the form of nano-silica, which improves the quality of the insulation oil. As for determining the feasibility of insulation oil, characteristic tests were carried out in the form of density, viscosity, moisture content, acid number, pour point, flash point, and breakdown voltage. Based on the results of the tests, it was obtained that the lowest density in pure oil was 0.8757 g / cm³, the lowest viscosity in oil with the addition of 0.13 wt% nano-silica was 4.0248 cSt, and the lowest acid number in pure oil was 0.5797 mgKOH / g. It was also discovered that the pour point value is the same for each sample, the moisture content is 0.05%, the flashpoint is > 104 °C, and the breakdown voltage is ≥ 60 kV for each sample. The data show that the insulation oil made from POME has the potential to be used as an alternative to insulation oil.
Perbandingan Metode Roger’s Ratio dan Metode Duval’s Triangle Terhadap Kegagalan Transformator Krisna, Julia; Bayusari, Ike; Sidik, Muhammad Abu Bakar
TEKNIKA Vol. 14 No. 1 (2020): Teknika Januari - Juni 2020
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.13346155

Abstract

Kualitas minyak transformator dapat diketahui dengan Dissolved Gas Analysis (DGA). Berdasarkan penelitian sebelumnya metode yang lebih unggul dalam menjawab kegagalan yang terjadi pada transformator adalah metode Roger’s Ratio dan Duval’s Triangle. Pada penelitian ini dilakukan perbandingan keefektifan dari kedua metode tersebut. Objek yang digunakan adalah tiga transformator yang berada gardu induk di Sumatera Selatan yaitu GI Simpang Tiga, GI Sekayu dan GI Seduduk Putih. Pada GI Simpang Tiga, metode Roger’s Ratio dan metode Duval’s Triangle sama-sama menjawab bahwa transformator tersebut mengalami kegagalan dengan jenis kegagalan Thermal Faults >700℃. Pada GI Sekayu, metode Roger’s Ratio menjawab kegagalan yang terjadi pada transformator yaitu Thermal Faults >700℃ saat pengujian pertama sedangkan pada pengujian kedua dan ketiga metode ini tidak bisa menjawab kegagalan pada transformator. Metode Duval’s Triangle menjawab kegagalan yang terjadi pada transformator yaitu Thermal Faults >700℃ pada pengujian pertama, sedangkan pada pengujian kedua dan ketiga mengalami kegagalan Discharges of Low Energy dan Mixtures of Thermal and Electrical.  Pada GI Seduduk Putih, metode Roger’s Ratio menjawab kegagalan yang terjadi yaitu Thermal Faults 300℃-700℃ sedangkan metode Duval’s Triangle menjawab kegagalan yang terjadi yaitu Thermal Faults <300℃. Berdasarkan hasil penelitian yang telah dilakukan, metode Duval’s Triangle menjadi lebih efektif jika dibandingkan dengan metode Roger’s Ratio.
Power Sector Under Climate Scenario: A Study of Climate Policy Impact on Indonesia Electricity System Kurniawan, Hendra; Iskandar, Iskhaq; Sidik, Muhammad Abu Bakar
Indonesian Journal of Environmental Management and Sustainability Vol. 8 No. 2 (2024): June
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2024.8.2.50-62

Abstract

In the sixth assessment report, the IPCC indicates that global temperature increased by 1.11 (±0.13) degrees Celsius in 2019 due to 6.5 gigatons of CO2eq of greenhouse gas emissions into the atmosphere. The power sector is a major global greenhouse gas emitter, particularly in Indonesia. Indonesia’s electricity sector emitted 149.90 million tons of CO2eq greenhouse gas in 2020, which is expected to increase to 158.30 million tons of CO2eq in 2021. Indonesia has committed to reducing greenhouse gas emissions according to the Paris Agreement. The Paris Agreement has been ratified into national law, accommodating Indonesia’s roadmap to net zero by 2060. The emissions reduction target was published in 2022 through the enhanced Nationally Determined Contribution (NDC). This study aims to analyze the impact of climate policy in Indonesia’s electricity sector to meet the net zero emissions target by 2060. Projection and calculation in this study were conducted using the Low Emissions Analysis Platform (LEAP). Data from 2020, including electricity demand, existing capacity, energy production, energy intensity, lifetime, and capacity factor, were used to support LEAP analysis. The data were obtained from the PLN statistical book, PLN sustainability report, Indonesia’s statistical book, and climate change mitigation and adaptation reports in Indonesia. This study developed three climate scenarios, including business as usual (BAU), sustainable development (SD), and low-carbon development (LCD). These scenarios draw upon current climate policies that have various impacts on electricity generation in Indonesia. Based on LEAP analysis, by 2060, energy demand is expected to increase to 300.36 MTOE (BAU), 200.93 MTOE (SD), and 76.97 MTOE (LCD). Consequently, each climate scenario requires an increase in installed capacity to 821.82 GW (BAU), 727.06 GW (SD), and 334.58 GW (LCD). The renewable energy mix is projected to be 21% (BAU), 69% (SD), and 100% (LCD). Each scenario requires investment to develop capacity to meet energy demand. The investment cost is estimated to be 1,671.58 million USD (BAU), 1,537.64 million USD (SD), and 816.51 million USD (LCD). GHG emissions are projected to rise to 1,746.31 million tons of CO2eq (BAU) and 264.39 million tons of CO2eq (SD). However, the LCD scenario expects to achieve net zero emissions by 2060.
PENDAMPINGAN PENERAPAN KESELAMATAN DAN KESEHATAN KERJA BAGI TIM LABORATORIUM Heni Fitriani; Agus Lestari Yuono; Sakura Yulia Iryani; Citra Indriyati; Muhammad Abu Bakar Sidik
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 3 (2024): Volume 5 No. 3 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i3.28669

Abstract

Untuk menjaga keselamatan dan kesehaan kerja (K3) selama beraktivitas di dalam laboratorium penting untuk dilakukan K3 laboratorium yang jelas dan komprehensif. Tindakan keselamatan kerja ini harus disertai dengan cara kerja yang baik dan harus dipatuhi oleh seluruh teknisi laboratorium. Tahapan bekerja di laboratorium dimulai dengan memahami peraturan kesehatan dan keselamatan kerja, kepatuhan terhadap peraturan berpakaian, langkah-langkah penanganan bahan kimia dan peralatan laboratorium secara aman, dan pembuangan limbah yang tepat. Saat ini mayoritas laboratorium yang ada di Fakultas Teknik Universitas Sriwijaya belum sepenuhnya menerapkan K3. Hal ini terbukti masih kurangnya fasilitas, peralatan dan rambu-rambu K3 yang ada di lingkungan sekitar. Terlebih lagi tenaga laboran yang meliputi kepala laboratorium, asisten lab serta teknisi laboratorium belum pernah mendapatkan pelatihan terkait K3 maupun sertifikasi K3. Oleh karena itu dipandang perlu untuk melakukan pendampingan dan bimbingan teknis terkait penerapan K3 di laboratorium dan lingkungan Fakultas Teknik Unsri.
Pendampingan Penerapan Keselamatan dan Kesehatan Kerja bagi Tim Laboratorium di Lingkungan Fakultas Teknik Universitas Sriwijaya Fitriani, Heni; Yuono, Agus Lestari; Iryani, Sakura Yulia; Indriyati, Citra; Sidik, Muhammad Abu Bakar
Karya Kesehatan Journal of Community Engagement Vol 6 No 1 (2025): Karya Kesehatan Journal of Community Engangement
Publisher : Sekolah Tinggi Ilmu Kesehatan Karya Kesehatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46233/k2jce.v6i1.1181

Abstract

Untuk menjaga keselamatan dan kesehaan kerja (K3) selama beraktivitas di dalam laboratorium penting untuk dilakukan K3 laboratorium yang jelas dan komprehensif. Tindakan keselamatan kerja ini harus disertai dengan cara kerja yang baik dan harus dipatuhi oleh seluruh teknisi laboratorium. Tahapan bekerja di laboratorium dimulai dengan memahami peraturan kesehatan dan keselamatan kerja, kepatuhan terhadap peraturan berpakaian, langkah-langkah penanganan bahan kimia dan peralatan laboratorium secara aman, dan pembuangan limbah yang tepat. Saat ini mayoritas laboratorium yang ada di Fakultas Teknik Universitas Sriwijaya belum sepenuhnya menerapkan K3. Hal ini terbukti masih kurangnya fasilitas, peralatan dan rambu-rambu K3 yang ada di lingkungan sekitar. Terlebih lagi tenaga laboran yang meliputi kepala laboratorium, asisten lab serta teknisi laboratorium belum pernah mendapatkan pelatihan terkait K3 maupun sertifikasi K3. Oleh karena itu dipandang perlu untuk melakukan pendampingan dan bimbingan teknis terkait penerapan K3 di laboratorium dan lingkungan Fakultas Teknik Unsri.
Co-Authors AA Sudharmawan, AA Agus Lestari Yuono Agus Lestari Yuono Ahmad, Mohd. Riduan ANWAR, WIWIN ARMOLDO OKTAVIANI Citra Indriyati D. R. Yuniarti Dewi Amalia Dinata, Noer Fadzri Perdana Elnaz Akbari Fitria, Syarifa Fitriani, Heni Heni Fitriani Ike Bayusari Indriyati, Citra Iskhaq Iskandar Krisna, Julia M. I. Jambak Mohd Riduan Ahmad Mona Riza Mohd Esa Muhammad Irfan Jambak Muhammad Irfan Jambak N. F. A. Isa Norain Sahari Norbayah Yusop Oktaviani, Wiwin A. R. F. Kurnia Sakura Yulia Iryani Sakura Yulia Iryani, Sakura Yulia Shamsul Ammar Shamsul Baharin Syed Muhammad Zafar Iqbal Tan Shea Ching Tuty Emilia Agustina Z. Buntat Zainuddin Nawawi Zolkafle Buntat Zulkifli Azman