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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Sains dan Teknologi GRADIEN Jurnal Fisika Unand SEMIRATA 2015 WARTA Jurnal Kelautan Tropis Jurnal Fisika FLUX BERITA BIOLOGI Jurnal Penelitian Sains Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pengabdian Pada Masyarakat Spektra: Jurnal Fisika dan Aplikasinya Marine Research in Indonesia Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jambura Journal of Mathematics Jurnal Pendidikan Fisika dan Teknologi Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Al-Khidmat : Jurnal Ilmiah Pengabdian Kepada Masyarakat Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Pamulang Law Review PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Maritime Park: Journal Of Maritime Technology and Socienty Jurnal Ilmiah Profesi Guru (JIPG) Makara Journal of Technology Formosa Journal of Computer and Information Science Newton-Maxwell Journal of Physics Indonesian Journal of Community Empowerment and Service An-Nisa’ Journal of Gender Studies Academia Open
Supiyati .
Universitas Bengkulu
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Journal : jurnal fisika flux

 1 
Analisis Tingkat Kecepatan Korosi Besi dengan Menggunakan Sinar Gamma Lubis, Ashar Muda; Supiyati, Supiyati
Jurnal Fisika FLUX Vol 6, No 2 (2009): Jurnal Fisika Flux Edisi Agustus 2009
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v6i2.3058

Abstract

In order to examinate rate of iron corrosion, we have conducted aresearch using apparatus Geiger-Muller Tube with sources radiation standardCo-60 as a source of Gamma ray. The samples, iron plate with diameter 2 cmand thichness 0.13 cm, were corroded by various media of corrosion i.e. water(H2O), solution of salt (NaCl) and sulphuric acid (H2SO4) with interval timecorrosion ± 5 days, 10 days, 15 days, 20 days, and 25 days. Firstly, weestimated intensity of Gamma ray before (Io) and after (I) passing through thesamples, and then we evaluated the absorption coefficient of samples. Weobtained that equation of absorption coefficient is A (water) = 0.0014t – 0.4608;R2 = 0.9184, A (salt solution) = 0.0015t – 0.4589; R2 = 0.8886 and A (sulphuricacid) = 0.0017t – 0.4532; R2 = 0.780. We calculated that the rate of corrosion forwater, salt solution and sulphuric acid is 0.0014 gr/cm2/day, 0.0015 gr/cm2/dayand 0.0017 gr/cm2/day respectively. The result shows the rate of corrosioncaused by sulphuric acid larger than corroded by salt and water. In addition, therates of corrosion of iron depend on interval time of corroding iron plate andmedia of corrosion. Another factor which may be related to rate of iron corrosionsuch as temperature, humidity and concentration of media of corrosion should beconsidered for next future.
Prediksi Jangka Pendek Debit Aliran Irigasi Seluma dengan Menggunakan Jaringan Syaraf Tiruan Supiyati, Supiyati; Bahri, Syamsul; Erdi, Iwan
Jurnal Fisika FLUX Vol 6, No 2 (2009): Jurnal Fisika Flux Edisi Agustus 2009
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v6i2.3057

Abstract

Penelitian mengenai prediksi jangka pendek debit aliran irigasiSeluma dengan menggunakan jaringan syaraf tiruan telah dilakukan. Perangkatlunak dibuat dengan Matlab, dan untuk arsitektur jaringannya menggunakanmetode propagasi balik. Penelitian ini bertujuan untuk memperkirakan debitaliran irigasi jangka pendek, debit bulan atau tahun yang akan datang yangnantinya bisa diolah sebagai acuan peningkatan daerah irigasi tersebut. Darihasil penelitian debit aliran irigasi terbesar terjadi pada bulan Desember denganketinggian 72,75 m3/s sedangkan untuk debit paling kecil terjadi pada bulan Junidengan besar debit 24,71 m3/s. Perbedaan hasil prediksi dengan data lapanganmemiliki keakuratan data 82,80%.
Analisis Tingkat Kecepatan Korosi Besi dengan Menggunakan Sinar Gamma Ashar Muda Lubis; Supiyati Supiyati
Jurnal Fisika FLUX Vol 6, No 2 (2009): Jurnal Fisika Flux Edisi Agustus 2009
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (69.003 KB) | DOI: 10.20527/flux.v6i2.3058

Abstract

In order to examinate rate of iron corrosion, we have conducted aresearch using apparatus Geiger-Muller Tube with sources radiation standardCo-60 as a source of Gamma ray. The samples, iron plate with diameter 2 cmand thichness 0.13 cm, were corroded by various media of corrosion i.e. water(H2O), solution of salt (NaCl) and sulphuric acid (H2SO4) with interval timecorrosion ± 5 days, 10 days, 15 days, 20 days, and 25 days. Firstly, weestimated intensity of Gamma ray before (Io) and after (I) passing through thesamples, and then we evaluated the absorption coefficient of samples. Weobtained that equation of absorption coefficient is A (water) = 0.0014t – 0.4608;R2 = 0.9184, A (salt solution) = 0.0015t – 0.4589; R2 = 0.8886 and A (sulphuricacid) = 0.0017t – 0.4532; R2 = 0.780. We calculated that the rate of corrosion forwater, salt solution and sulphuric acid is 0.0014 gr/cm2/day, 0.0015 gr/cm2/dayand 0.0017 gr/cm2/day respectively. The result shows the rate of corrosioncaused by sulphuric acid larger than corroded by salt and water. In addition, therates of corrosion of iron depend on interval time of corroding iron plate andmedia of corrosion. Another factor which may be related to rate of iron corrosionsuch as temperature, humidity and concentration of media of corrosion should beconsidered for next future.
Prediksi Jangka Pendek Debit Aliran Irigasi Seluma dengan Menggunakan Jaringan Syaraf Tiruan Supiyati Supiyati; Syamsul Bahri; Iwan Erdi
Jurnal Fisika FLUX Vol 6, No 2 (2009): Jurnal Fisika Flux Edisi Agustus 2009
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (50.553 KB) | DOI: 10.20527/flux.v6i2.3057

Abstract

Penelitian mengenai prediksi jangka pendek debit aliran irigasiSeluma dengan menggunakan jaringan syaraf tiruan telah dilakukan. Perangkatlunak dibuat dengan Matlab, dan untuk arsitektur jaringannya menggunakanmetode propagasi balik. Penelitian ini bertujuan untuk memperkirakan debitaliran irigasi jangka pendek, debit bulan atau tahun yang akan datang yangnantinya bisa diolah sebagai acuan peningkatan daerah irigasi tersebut. Darihasil penelitian debit aliran irigasi terbesar terjadi pada bulan Desember denganketinggian 72,75 m3/s sedangkan untuk debit paling kecil terjadi pada bulan Junidengan besar debit 24,71 m3/s. Perbedaan hasil prediksi dengan data lapanganmemiliki keakuratan data 82,80%.
A Study of Oceanographic Conditions During the Tropical Cyclone Anggrek in the Coastal Area of Bengkulu Agustina, Rozylla; Supiyati, Supiyati; Johan, Septi; Norfahmi, Siti Hairunnisa
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 23, No 1 (2026): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v23i1.24120

Abstract

This research has not been discussed previously, especially in the waters of Bengkulu, which has a strategic position in relation to the formation and movement of tropical cyclones in the eastern Indian Ocean. The lack of research in this region has resulted in limited information on the direct impact of cyclones on oceanographic parameters. This study aims to identify the impact of tropical cyclone Anggrek on oceanographic parameters in Bengkulu waters during and after the occurrence of tropical cyclone Anggrek. This study is limited to the waters of Bengkulu with a focus on the period from January 15 to February 13, 2024. Reanalysis data from the Marine Copernicus numerical model was used and analyzed temporally with a quantitative descriptive approach, followed by a t-test: Paired Two Sample for Means. The results of the oceanographic parameter analysis showed significant changes due to the influence of Tropical Cyclone Anggrek in the waters of Bengkulu. Based on the results of the paired t-test, all main parameters showed significant differences  between normal conditions and cyclone conditions. Sea surface temperature decreased during the cyclone due to vertical mixing processes, then increased again after the cyclone moved away. Salinity values also showed significant differences. Wave height and current velocity experienced noticeable fluctuations, and wind speed conditions during Tropical Cyclone Anggrek generally increased. The results of this study provide updates to BMKG predictions and support the strengthening of early warning systems in the western coastal region of Sumatra, particularly in the waters of Bengkulu, by understanding changes in sea and atmospheric conditions after the cyclone.
Co-Authors Agustin, Rika Amelia Agustina, Rozylla Alfan Sukmana Praja Alfando, Andre anjasman, anjasman Anwar, Anang Ari Anggoro Ashar Muda Lubis Asteriqa, Mica Astuti, Nissa Azhari, M Fikri Bambang Sulistyo Baringin, Rolando Berliani, Riska Chandra Kurniawan, Chandra Dari, Evita Sri Wulan Dea Apriliani Deddy Bakhtiar Deddy Bakhtiar, Deddy Desrina Saragih, Rika Devi Permata Sari Elfi Yuliza Elisa, Imania Elmiati Elmiati Elmiati Elmiati Erdi, Iwan Erwina, Yuyun Gita Rahma Sari Gunawan, Nur Aini Hairunnisa Norfahmi, Siti Halauddin Halauddin Halauddin Halauddin Halauddin Harlianto, Budi Helfi Eka Saputra Henny Johan Hestyna Eka Putri Ichsan Setiawan Ima Maisaroh Irkhos Irkhos Irkhos Irkhos Iwan Erdi Johan, Septi Lestari, Wina Ayu Lizalidiawati M Syarifuddin Mehmed, Muhammad Umar Melisa, Wery Mhd Ikhwanuddin Abdullah Mihardja, D. K. Mihardja, D. K. Nanang Sugianto Nasya, Angel Pauline Nissa Astuti Norfahmi, Siti Hairunnisa Oktari Elha Safitri Ompusunggu, Yordan A Permatasari, Deah Putri, Hestyna Eka Rani Fuad Cahyani Ratmo, Edy Reva Marlita Putri Rida Samdara Riska Ekawita Risky Oktami Safitri, Oktari Elha Saputra, Rahmat Setya Pagestu Sholeha, Badriah Siregar, Anjeli Agustina Siti Fatimah Soleh Hidayat, Soleh Sudirman Sudirman Suhendra - Suhendra Suhendra Sujanah, Nanah Suprijo, T. Suprijo, T. Suwardi Suwardi Suwardi Suwardi Suwarsono Suwarsono Suwarsono Suwarsono Suwarsono Suwarsono Suwarsono Suwarsono Suwarsono Suwarsono Suwarsono Syamsul Bahri Syamsul Bahri Syaputri, Adinda Hija XXX, SATURN Yosia Pandu S