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All Journal BULETIN OSEANOGRAFI MARINA IJOG : Indonesian Journal on Geoscience JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Fisika FLUX Jurnal Geocelebes Journal of Geoscience, Engineering, Environment, and Technology JKTP: Jurnal Kajian Teknologi Pendidikan Spektra: Jurnal Fisika dan Aplikasinya Buletin Sumber Daya Geologi PENDIPA Journal of Science Education Jurnal Ilmu Fisika Jurnal Pendidikan Fisika dan Teknologi Indonesian Physical Review Kasuari: Physics Education Journal (KPEJ) Jurnal Kumparan Fisika Jurnal Pengabdian Al-Ikhlas Best Journal (Biology Education, Sains and Technology) Indonesian Journal on Geoscience Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Indonesian Journal on Geoscience Jurnal Multidisiplin Madani (MUDIMA) JoS ( Journal of International Relations) Fokus Abdimas Jurnal Meteorologi dan Geofisika Jurnal Geosaintek

Farid, Muchammad

Universitas Bengkulu

Author-ID : 3327740

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Landslide Potential Investigation for Disaster Risk Reduction in Central Bengkulu Regency, Bengkulu Province, Indonesia Hadi, Arif Ismul; Refrizon, Refrizon; Farid, Muchammad; Harlianto, Budi; Sari, Julia Inti
Indonesian Journal on Geoscience Vol 8, No 3 (2021): in-press
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.8.3.313-328

Bengkulu Province is the converging path region between the Indo-Australian - Eurasian tectonic plates in the ocean and the Sumatran f ault crossing on the mainland. The condition implies that the sliding force of the slab is easy to trigger fractures and to cause the material to be relatively less elastic, resulting in high seismic intensity. This study aims to identify areas with the potential for landslides and its mapping, and to analyze the factors that cause landslides in Central Bengkulu Regency, Bengkulu Province, Indonesia. This study was conducted using rock physical parameters of ground shear strain (GSS) which were correlated with parameters of slope, slope height, Vs30 value, fault distance to measurement point, rock conditions, rainfall, and PGA value. Furthermore, these parameters were overlaid thoroughly by the statistical method of the Analytical Hierarchy Process (AHP). Data acquisition is divided into two stages, namely the secondary data collection stage and the field survey stage. Secondary data collection was carried out to support the creation of landslide potential maps, analysis, and field survey data input. Secondary data is the value of Vs 30, the distance of the fault to the measurement point, rainfall, and the PGA value. Field survey data are in the form of GSS values, slope, slope height, and rock conditions. The results of this study are identified areas that have the category of high, medium, and low landslide potential. Based on the calculated parameters, the GSS parameter is the most dominant which affects the landslide potential in the studied area.

Landslide Potential Investigation for Disaster Risk Reduction in Central Bengkulu Regency, Bengkulu Province, Indonesia Arif Ismul Hadi; Refrizon Refrizon; Muchammad Farid; Budi Harlianto; Julia Inti Sari
Indonesian Journal on Geoscience Vol 8, No 3 (2021)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.8.3.313-328

DOI:10.17014/ijog.8.3.313-328Bengkulu Province is the converging path region between the Indo-Australian - Eurasian tectonic plates in the ocean and the Sumatran f ault crossing on the mainland. The condition implies that the sliding force of the slab is easy to trigger fractures and to cause the material to be relatively less elastic, resulting in high seismic intensity. This study aims to identify areas with the potential for landslides and its mapping, and to analyze the factors that cause landslides in Central Bengkulu Regency, Bengkulu Province, Indonesia. This study was conducted using rock physical parameters of ground shear strain (GSS) which were correlated with parameters of slope, slope height, Vs30 value, fault distance to measurement point, rock conditions, rainfall, and PGA value. Furthermore, these parameters were overlaid thoroughly by the statistical method of the Analytical Hierarchy Process (AHP). Data acquisition is divided into two stages, namely the secondary data collection stage and the field survey stage. Secondary data collection was carried out to support the creation of landslide potential maps, analysis, and field survey data input. Secondary data is the value of Vs 30, the distance of the fault to the measurement point, rainfall, and the PGA value. Field survey data are in the form of GSS values, slope, slope height, and rock conditions. The results of this study are identified areas that have the category of high, medium, and low landslide potential. Based on the calculated parameters, the GSS parameter is the most dominant which affects the landslide potential in the studied area.

Pemetaan Potensi Kerentanan Gempabumi Pada Kota Bengkulu Menggunakan Data Mikrotremor dan Metode Analytical Hierarchy Process Arif Ismul Hadi; Muchammad Farid; Refrizon Refrizon; Budi Harlianto; Nurul Hudayat; Malik Krisbudianto
Jurnal Fisika FLUX Vol 18, No 2 (2021): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

ABSTRAK- Kota Bengkulu merupakan daerah yang sangat rawan terhadap ancaman gempabumi. Salah satu upaya mengurangi dampak bencana gempabumi adalah melakukan analisis potensi tersebut berdasarkan data mikrotremor dan metode pembobotan statistik. Penelitian ini bertujuan memetakan dan menganalisis daerah-daerah yang rentan mengalami ancaman bahaya gempabumi. Penelitian ini dilakukan menggunakan data sekunder dan survei lapangan. Data sekunder bersumber dari penelitian-penelitian terkait, sedangkan data survei lapangan berupa data mikrotremor menggunakan metode Horizontal to Vertical Spectral Ratio (HVSR). Alat yang digunakan untuk survei lapangan berupa broadband seismometer PASI Gemini-2 triaxial geophone dengan natural freq. 2 Hz ± 10%, berat 2 kg (s.n.: 12/004). Akusisi data lapangan dilakukan selama 30 menit (360.000 samples) per titik pengukuran dengan sampling rate 5 ms (200 Hz). Selanjutnya, tumpangsusun hasil pengolahan data sekunder dan lapangan menggunakan metode pembobotan statistik Analytical Hierarchy Process (AHP), sehingga diperoleh peta potensi kerentanan gempabumi di wilayah studi. Berdasarkan hasil analisis yang ditunjukkan dalam peta kerentanan gempabumi di daerah Kota Bengkulu dalam penelitian ini, Kecamatan Gading Cempaka, Kecamatan Singaranpati, Kecamatan Selebar, sebagian kecil Kecamatan Ratu Agung, dan Kecamatan Muara Bangkahulu adalah daerah yang mempunyai potensi kegempaan tinggi, sedangkan Kecamatan Selebar adalah daerah yang mempunyai potensi kegempaan rendah. Oleh karena itu untuk daerah berisiko tinggi perlu lebih diwaspadai dan perlu perencanaan pembangunan yang mengacu kepada standar risiko bencana. ABSTRACT− Bengkulu City is an area that is very prone to earthquake threats. One of the method to reduce the impact of an earthquake disaster is to conduct a potential analysis based on microtremor data and statistical weighting methods. This study aims to map and analyze the areas have the vulnerability to experience an earthquake hazard. This study was conducted using secondary data and field surveys. Secondary data comes from related studies, while field survey data is in the form of microtremor data using the Horizontal to Vertical Spectral Ratio (HVSR) method. The instrument used for the field survey was a broadband seismometer PASI Gemini-2 triaxial geophone with natural freq. is 2 Hz ± 10%, weight is 2 kg (s.n .: 12/004). Field data acquisition was carried out for 30 minutes (360,000 samples) per observation point with a sampling rate of 5 ms (200 Hz). Furthermore, the overlay of the results of secondary and field data processing uses the statistical weighting method of Analytical Hierarchy Process (AHP), in order to obtain a map of potential the seismic vulnerability in the study area. Based on the results of the analysis shown in the seismic vulnerability map in the Bengkulu City area in this study, Gading Cempaka Sub-district, Singaranpati Sub-district, Selebar Sub-district, a small part of Ratu Agung Sub-district, and Muara Bangkahulu Sub-district were areas that had a high seismic vulnerability, while Selebar Sub-district were areas that had low seismic vulnerability. Therefore, high-risk areas need to be more vigilant and need development planning that refers to disaster risk standards.

Penentuan Nilai Emisivitas Warna Menggunakan Penerangan Pada Miniatur Ruang Berbentuk Kubus Dan Proses Pembelajaran Fisika Kelas X SMK Negeri 2 Bengkulu Tengah Cariti Dassa Urra; Afrizal Mayub; M Farid
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.1.1.32-40

ABSTRACT This study aims to: know the value of emissivity of purple, green, blue, red, light green, light blue, orange, yellow, pink, and improvement of learning outcomes by using PBL model on the concept of heat transfer class X TKR SMKN 2 Bengkulu Tengah, and explain the difference of students' cognitive learning outcomes in high, medium and low group. This study deals with the measurement of color emissivity and its implementation in physics learning on the topic of heat transfer. The population in this study is all students of class X SMK Negeri 2 Bengkulu Tengah academic year 2016/2017. The sample is taken by purposive sampling technique, that is class X.TKR (Light Vehicle Technique) which is taught by Problem Based Learning (PBL) model. This research is a quasi experimental research with One Group pretest-posttest design. The results showed that the purple comet value was 0.91, the green emissivity (going green) was 0.84, the blue emissivity (true blue) was 0.77, the red color emissivity (talk of the town) 0.66, light green color emissivity (apple martini) of 0.61, blue sky emissivity of 0.54, orange torch emission of 0,50, emissivity of light brown (pastry puff) of 0.46, yellow color emission (absolute yellow) of 0.37, and pink emissivity (crystal pink) of 0.24; There is an increase in learning outcomes on the concept of high, medium and low group high caloric transfer with N-gain values of 0.76 (high), 0.64 (medium), and 0.46 (moderate); There was a difference of students' cognitive learning outcomes in the high, medium and low groups shown by Fcount> Ftable (4.40> 3.35) at the 5% significance level.

Analisis Shear Strain dan Kerusakan Bangunan Akibat Gempa Bumi di Kecamatan Gading Cempaka dan Ratu Agung Kota Bengkulu Kurnia Lestari; Muchammad Farid; Afrizal Mayub
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

ABSTRACT [The Analysis of Shear Strain and Building Damage due to Earthquake at Gading Cempaka and Ratu Agung District in Bengkulu City]. The aims of this research are to: (1) determine and mapping the distribution of shear strain values, (2) correlate between shear strains with building damage Gading Cempaka and Ratu Agung caused by earthwuake at sub district in Bengkulu city. Microtremor data were taken at 108 observation points then analyzed using HVSR method to obtain amplification factor and dominant frequency values..The result showed that shear strain value of Gading Cempaka and Ratu Agung sub district in Bengkulu city are relatively heterogeneous although in the same geological formation type. The earthquake in 2007 is estimated to be 3.38% potential to deform the land surface in the form of fractures and settlements and 96, 62% potentially experience shocks due to waves and vibrations due to earthquake. The earthquake of 2000 estimated that almost the entire area of Gading Cempaka and Ratu Agung has the potential to experience shocks due to waves and vibrations due to earthquake that is equal to 97% while potentially liquefaction (ambles) occurs by 3%. The correlation between shear strain with the damage of buildings due to earthquake shows the relationship is directly proportional to the function y = 15267x + 26.219 with the coefficient of resgression of = 0.671. Keywords: Earthquake; HVSR method; microtremor; shear strain.

Pembelajaran Fisika Konsep Kalor Dengan Menggunakan Media Pirolisis Sampah Plastik Untuk Meningkatkan Ketrampilan Berpikir Kritis Siswa Di SMAN 3 Bengkulu Tengah Umi kalsum; Agus Sundaryono; M Farid
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

The objectives of this research are (1) to know the value of density, viscosity, fog point, oil absorption caloric, odor, color and fire sensitivity, in pyrolysis of plastic garbage from condenser one and two adsorbed using zeolite and activated charcoal, (2) the content contained in pyrolysis plastic waste oil adsorbed using active zeolite and charcoal, (3) knowing differences in critical thinking skills among students who learn to use guided inquiry learning model with students who study conventionally on physics learning. Convert plastic waste into fuel oil using a pyrolysis process with two water condensers, then plastic waste pyrolysis oil adsorbed using activated zeolite and charcoal. The results showed that the density value of the adsorbed oil for one condenser was 772 Kg / m3 and the condenser was 770 Kg / m3, the viscosity value of the adsorbed oil from the condenser one and two had the same value of 0.49 m2 / s, the fog point value oil that has been adsorbed on the condenser yield one and two is the same value that is -18oC, the calorific value of oil absorption, color, odor, and fire sensitivity shows the more adsorbent and the longer the adsorption process, the oil absorbs the smaller, , the odor does not sting, and the fire sensitivity gets smaller. GC-MS test results obtained the most compounds contained in pyrolysis oil plastic waste that has been adsorbed that is 1,3,5-trimethylcyclohexene. The implementation of physics learning on the concept of heat shows that there are differences in critical thinking skills in control and experiment class. Based on different test on posttest result the first material got 0,022 and postest second material equal to 0,047, the value is smaller than level of significance 0,05 so Ha accepted.

Hubungan antara Kedalaman Permukaan Air Tanah dengan Salinitas di Pesisir Pantai Kungkai Baru serta Penggunaan Model Discovery Learning Sutijo Joko Sudiro; Muchammad Farid; Eko Swistoro
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

ABSTRACT [Relationship between Groundwater Surface Depth with Salinity at the Coast of New Kungkai Beach and its Implementation on Discovery Learning Model]. The aims of this study were 1) to describe the relationship between groundwater surface depth with salinity in the coastal areas of new kungkai beach of Seluma, and 2) to determine the improvement of learning outcomes (cognitive) of high ability students, moderate and low by using discovery learning model on the concept of static fluid in class X computer and network engineering at SMK Negeri 3 Seluma. This research was a quasi experimental research with one groups pretest-posttest design. The results showed: 1) The relationship between depth with salinity has a value of 0.6478 with a significance level of 0.001 (<0.05); 2) Learning with discovery learning model can improve student learning outcomes on cognitive aspects (knowledge). Increased cognitive results can be seen from the average value of the initial test, the final test and the average value of gain in the class x Tkj is high-ability groups are at high criteria with a value of 0.75 gain in the group is in the criteria medium with the value of gain 0,52 and in the low group were in moderate criteria with a gain value of 0.44. There is a difference in learning outcomes between the high, medium and low groups. The difference is shown by Fcount > Ftable (4.04 > 3.35) with a significance level of 5%. Keywords: Groundwater surface depth; salinity; discovery learning model; SMKN 3 Seluma.

Penggunaan Data Mikrotremor Dan Vs30 Untuk Mengetahui Hubungan Ketebalan Sedimen Terhadap Produktivitas Kelapa Sawit Dan Implementasinya Dalam Pembelajaran Fisika Riska Marwanti; M.Lutfi Firdaus; M Farid
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

The aims of this study were to determine the relationship of sediment thickness to palm oil productivity and to know the improvement of student learning outcomes after learning using LKPD based on service learning. This study was conducted using HVSR (Horizontal to Vertical Spectral Ratio) method. Data were collected as 10 primary data points, while secondary data on palm oil productivity was obtained from PT Bio Nusantara Teknologi. Data obtained from field measurements are numerical data of natural wave recording or seismic signal at each measurement point. The data is processed using Geopsy software so it can be known the price of the dominant frequency (fo), while the shear wave velocity (Vs30) is obtained through USGS data. The result of this research is there is intermediate relationship between sediment thickness to productivity of palm oil with product moment correlation value equal to 0,6392, so that thicker layer of sediment hence higher productivity. The results of this study further used as a source of information contained in the form of LKPD-based service learning to become a learning medium taught by Problem Based Learning (PBL) model on students of class XI SMK N 1 Padang Jaya to know the improvement of students' cognitive learning outcomes in physics learning. The result of research implementation influence of sediment thickness to productivity of palm oil in classroom study showed cognitive learning result of learners experience improvement of cognitive learning result with average value of N-gain of 0,52 (medium criterion).

Penggunaan Wajan Sebagai Cermin Cekung Untuk Mengukur Efisiensi Cahaya Matahari Revika Julia Pratiwi; Afrizal Mayub; M. Farid; Nirwana
Jurnal Multidisiplin Madani Vol. 1 No. 3 (2021): Desember 2021
Publisher : PT FORMOSA CENDEKIA GLOBAL

Penelitian ini bertujuan untuk (1) memanfaatkan wajan sebagai cermin cekung untuk mengumpulkan cahaya matahari (2) menghitung efisiensi energi cahaya matahari pada kompor surya yang menggunakan cermin cekung, (3) mengetahui waktu yang digunakan untuk memanaskan ½ liter air sampai pada suhu tertentu dengan memvariasikan diameter cermin cekung dan Kompor surya adalah perangkat masak yang menggunakan sinar matahari sebagai sumber energi. Kompor surya yang dibuat sebanyak 4 kompor dengan diameter yang berbeda-beda yaitu 26 cm, 36 cm, 38 cm dan 40 cm. Dari hasil penelitian, diperoleh suhu maksimum sebesar 60 0C, efisiensi maksimum kompor surya adalah 9 % dan efisiensi minimum kompor surya adalah 6%. Besarnya efisiensi energi cahaya matahari pada kompor surya yang menggunakan cermin cekung dengan diameter yang bervariasi juga berbeda tidak tergantung dengan besar kecilnya diameter kompor.

Co-Authors Afrizal Mayub Afrizal Mayub Afrizal Mayub Agung Sedayu Al Ansory, Andre Rahmat Al-Ansory, Andre Rahmat Alda Sulistiani Ambarwati Anggi, Arya Putra Apriana, Yelda Arif Ismul Hadi Budiyanto Budiyanto Cariti Dassa Urra Clora Ulandari Darmawan Ikhlas Fadli Deassy Siska Della Zakia Soleha Efmadani Efmadani Eko Swistoro Gea, Jessica Agnes Soroinama Gede Oktiana Giltro Kencoro Gita Panny Nababan Gumanty, Usman Halauddin Halauddin Hana Raihana Hardiansa, Debi Hardiansyah, Debi Hardianza, Meno Harlianto, Budi Hasugian, Basdiki Hasugian, Basdikki Helinnes, Putri Helmy Fitriawan Helmy Fitriawan Henny Johan Hilmi Zakariya Insani, Redha Radiatul Julia Inti Sari Junnah, Azima Raudhalia Kurnia Lestari M. Lutfi Firdaus Maesaroh, Rina Maesaroh, Rina Maesaroh Malik Krisbudianto Mayub, Afrizal Mei Indrawati, Mei Muammar, Zaky Naldo, Asrol Nanang Sugianto Nandi Haerudin Nirwana Nurul Apriyanti Nurul Hudayat Onawa, Jonah Prasetyo, Kobin Putri Mulia R Rustadi Rabbani, Muhammad Rifqi Rahmat Al-Ansory, Andre Rahmawati, Nur Shafira Rahmawati, Nurul Ilmi Raihana, Hana Refrizon Refrizon Refrizon Refrizon Refrizon Refrizon Refrizon Refrizon Refrizon Refrizon, Refizon Refrizon, Refrizon Refrizon, Refrizon Revika Julia Pratiwi Rifa Rihadatul Aisy Riska Marwanti Rose Intan Perma Sari Rustadi Rustadi Sari, Julia Inti Sari, Julia Inti Sefti Dewi Sari Sesilia, Tiara Setiawan, Randy Putra Sholeha, Della Zakia Siswanti, Liza Alif Suhendra Suhendra Suhendra Suhendra Sumajaya, Erlan Susilaningsih Susilaningsih, Susilaningsih Sutijo Joko Sudiro Suwarsono Suwarsono Taufiqurrahman Syah, Muhammad Tika Hardini Umaya Umaya, Umaya Umi kalsum Verentina, Sendiya Wardana, Rendy Wikrama Yerry Soepriyanto Yola Dwi Ramadhani Yuni Setyowati Yurilla Endah Muliatie, Yurilla Endah

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