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All Journal Jurnal Ilmu Fisika Jurnal Agribis
Taufiqurrahman Syah, Muhammad
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Agriculture, Biological Sciences & Forestry Astronomy Earth & Planetary Sciences Economics, Econometrics & Finance Materials Science & Nanotechnology Physics

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Analisa Lapisan Sedimen Bawah Permukaan Pada Pembangunan Jalan Elevated Danau Dendam Tak Sudah Kota Bengkulu Menggunakan Metode HVInv Setyowati, Yuni; Farid, Muchammad; Ismul Hadi, Arif; Helinnes, Putri; Hardiansyah, Debi; Refrizon, Refrizon; Gumanty, Usman; Raihana, Hana; Rahmat Al-Ansory, Andre; Taufiqurrahman Syah, Muhammad
Jurnal Ilmu Fisika Vol 16 No 2 (2024): September 2024
Publisher : Jurusan Fisika FMIPA Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.16.2.187-197.2024

Abstract

Bengkulu City is situated within a subduction zone where the Indo-Australian and Eurasian tectonic plates converge, rendering the area highly susceptible to seismic activity. This study employs the microseismic method to assess seismic vulnerability and the subsurface rock structure at the Dendam Tak Sudah Lake Flyover Construction Site in Bengkulu City, which encompasses a swampy region. The microseismic method used was an inversion of the horizontal to vertical (H/V) spectral ratio (HV-Inv) for determining the dominant frequency (f0), amplification factor (A0), seismic sensitivity index (Kg), and shear wave velocity (Vs). The findings reveal that f0 in the study area range from 2.16 to 7.53 Hz, A0 vary from 0.40 to 3.79, and Kg values span from 0.03 to 6.04. The sedimentary layers exhibit an average thickness of 5-10 meters, with some locations showing significantly thicker sedimentary deposits. Notably, the highest seismic susceptibility is recorded at point T8. The Vs values range from 185.19 to 539.49 m/s, which are inversely proportional to the Kg values and indicate soil classifications varying from soft to medium. The overall seismic risk in the study area is moderate. These results offer key insights into geophysical and geological conditions in Bengkulu City, crucial for earthquake mitigation.
Analisa Lapisan Sedimen Bawah Permukaan Pada Pembangunan Jalan Elevated Danau Dendam Tak Sudah Kota Bengkulu Menggunakan Metode HVInv Setyowati, Yuni; Farid, Muchammad; Ismul Hadi, Arif; Helinnes, Putri; Refrizon, Refrizon; Hardiansyah, Debi; Gumanty, Usman; Raihana, Hana; Rahmat Al-Ansory, Andre; Taufiqurrahman Syah, Muhammad
Jurnal Ilmu Fisika Vol 16 No 2 (2024): September 2024
Publisher : Jurusan Fisika FMIPA Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.16.2.187-197.2024

Abstract

Bengkulu City is situated within a subduction zone where the Indo-Australian and Eurasian tectonic plates converge, rendering the area highly susceptible to seismic activity. This study employs the microseismic method to assess seismic vulnerability and the subsurface rock structure at the Dendam Tak Sudah Lake Flyover Construction Site in Bengkulu City, which encompasses a swampy region. The microseismic method used was an inversion of the horizontal to vertical (H/V) spectral ratio (HV-Inv) for determining the dominant frequency (f0), amplification factor (A0), seismic sensitivity index (Kg), and shear wave velocity (Vs). The findings reveal that f0 in the study area range from 2.16 to 7.53 Hz, A0 vary from 0.40 to 3.79, and Kg values span from 0.03 to 6.04. The sedimentary layers exhibit an average thickness of 5-10 meters, with some locations showing significantly thicker sedimentary deposits. Notably, the highest seismic susceptibility is recorded at point T8. The Vs values range from 185.19 to 539.49 m/s, which are inversely proportional to the Kg values and indicate soil classifications varying from soft to medium. The overall seismic risk in the study area is moderate. These results offer key insights into geophysical and geological conditions in Bengkulu City, crucial for earthquake mitigation.
ANALISIS USAHA PENGGILINGAN PADI DI KECAMATAN PINO KABUPATEN BENGKULU SELATAN Taufiqurrahman Syah, Muhammad; Abdurrahman Syah, Muhammad Fakhrurozi; Daya Sirsan, Cendi Herlin; Tri Oktami, Evon; Reflis; Yuwana; Cahyadinata, Indra; Irnad; Marwan, Edi; Efrita, Edi; Mulyadi, Maheran; Yawahar, Jon
Jurnal AGRIBIS Vol. 19 No. 1 (2026): Jurnal Agribis
Publisher : Program Studi Agribisnis Faperta Universitas Muhammadiyah Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Usaha penggilingan padi membutuhkan biaya produksi yang tinggi untuk bisa beroperasi. Biaya produksi yang tinggi inilah menyebabkan usaha penggilingan padi perlu untuk dianalisis kembali. Penelitian ini bertujuan untuk menganalisis usaha penggilingan padi di Kecamatan Pino Kabupaten Bengkulu Selatan. Penelitian mengunakan metode survei dengan teknik penarikan sampel purposive. Penelitian dilakukan di wilayah administrasi Kecamatan Pino Kabupaten Bengkulu Selatan. Data diperoleh dari mewawancarai 5 orang responden. Data yang digunakan yaitu data primer dan data sekunder. Data dianalisis menggunakan analisis keuntungan, efisiensi, dan kelayakan. Hasil penelitian menunjukan keuntungan usaha penggilingan padi sebesar Rp3.790.858/Bulan, rasio R/C 2,05, dan rasio B/C 1,05. Usaha penggilingan padi di Kecamatan Pino Kabupaten Bengkulu Selatan perlu melakukan efisiensi biaya produksi, diversifikasi layanan, pembelian gabah, dan pemanfaatan limbah sekam untuk memperoleh keuntungan yang lebih besar.
Co-Authors Abdurrahman Syah, Muhammad Fakhrurozi Arif Ismul Hadi Daya Sirsan, Cendi Herlin Edi Efrita Edi Marwan Farid, Muchammad Gumanty, Usman Hardiansyah, Debi Helinnes, Putri Indra Cahyadinata, Indra Irnad Mulyadi, Maheran Rahmat Al-Ansory, Andre Raihana, Hana Reflis Refrizon Refrizon Tri Oktami, Evon Yawahar, Jon Yuni Setyowati Yuwana