Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Educative Sportive JURNAL PERTAMBANGAN
Syaputra, R.
Unknown Affiliation
Education Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
SURVEI KELINCAHAN DAN KECEPATAN PEMAIN FUTSAL PADA EKSTRAKURIKULER SMA NEGERI 7 BENGKULU SELATAN Putra, H.; Syaputra, R.; Sembiring, L. T.; Sumantri, Ajis
Educative Sportive Vol 5 No 1 (2024): Educative Sportive, Januari
Publisher : UNIVED Press, Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/edusport.v5i1.5581

Abstract

This study aims to determine the agility and speed of futsal players in the extracurricular of SMA Negeri 7 Bengkulu Selatan. This research uses quantitative descriptive. The method used is a survey. The population in this study were students of SMA Negeri 7 South Bengkulu, totaling 20 students. The sample used in this study were students of SMA Negeri 7 Bengkulu Selatan. The test instrument used was the zig-zag run agility test, and the speed of running 50 meters. Data using descriptive analysis techniques which are outlined in percentage form. The results showed that the ability of futsal players in the extracurricular of SMA Negeri 7 Bengkulu Selatan with the results for the agility test, the highest frequency category in the "medium" category, namely 10 players or 50%, the agility of the extracurricular futsal players of SMA Negeri 7 Bengkulu Selatan did not have a "very good" category in the category "good" 5 players or 25%, the category "medium" 10 players or 50%, the category "less" 4 players or 20% and the category "very less" 1 player or 5%. And for the speed test results, namely with the highest frequency category in the "medium' category, namely 14 players or 70%, the speed test for extracurricular futsal players of SMA Negeri 7 Bengkulu Selatan does not have a category of "excellent" which is categorized as "good" 2 players or 10%, the category "medium" 14 players or 70%, the category "less" 2 players or 10% and the category "very less" 2 players or 10%..
Analisis Tingkat Keterampilan Passing dan Dribbling Siswa Pada Ekstrakurikuler Futsal di SMA N 1 Kepahiang Gunatama, Fahmi Ilham; Syaputra, R.; Martiani, Martiani; Sumantri, Ajis
Educative Sportive Vol 5 No 1 (2024): Educative Sportive, Januari
Publisher : UNIVED Press, Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/edusport.v5i1.5583

Abstract

This study aims to determine the analysis of the level of passing and dribbling skills of students in extracurricular Futsal at SMA N 1 Kepahiang. This research uses quantitative descriptive research, with the type of survey method. The sample in this study amounted to 20 futsal extracurricular participants at SMAN 1 Kepahiang.The data collection techniques in this study used tests and measurements. Based on the results of the research that has been carried out, it can be concluded that the analysis of the level of passing and dribbling skills of students in extracurricular Futsal at SMA N 1 Kepahiang, based on the basic skills test of playing futsal, it is known that the excellent category is 5 participants, the good category is 11 participants, the moderate category is 3 participants, the deficient category is 1 participant, and the category is very poor 0 participants.
KARAKTERISTIK PEMBENTUKAN AIR ASAM TAMBANG PADA ENDAPAN HIGH SULPHIDATION EPITHERMAL Prihartini, R.; Syaputra, R.; Kusuma, G. J.
Jurnal Pertambangan Vol. 6 No. 3 (2022): Agustus 2022
Publisher : Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jp.v6i3.1306

Abstract

Kegiatan penambangan meliputi aktivitas penggalian dan penimbunan batuan sisa pada tambang emas dengan tipe endapan high sulphidation epithermal (HSE), memungkinkan terdedahnya material sulfida kontak dengan udara dan air berpotensi untuk menimbulkan air asam tambang (AAT). Tujuan penelitian untuk mengetahui studi pembentukan AAT dengan meninjau karakteristik laju oksidasi mineral sulfida dengan pendekatan mol besi total, mol sulfat, dan mol pirit dari hasil pemodelan geokimia PHREEQC. Sebanyak empat sampel batuan yang digunakan dan dikelompokkan berdasarkan domain geologi tingkat oksidasi sempurna (COX) dan tidak teroksidasi (UOX). Metode penelitian menggunakan uji mineralogi dan unsur, serta uji geokimia (statik dan kinetik). Pemodelan geokimia menggunakan PHREEQC dilakukan untuk mensimulasikan perubahan pH dan konsentrasi zat terlarut yang dihasilkan selama uji kinetik. Hasil air lindian memiliki pH relatif rendah yang diiring oleh peningkatan konsentrasi sulfat, besi, aluminium, dan konstituen lainnya. Laju oksidasi pembentuk AAT berdasarkan mol sulfat (1,172 x 10-10 – 5,453 x 10-10 mol/m2s) lebih mendekati nilai transfer mol pyrite hasil pemodelan geokimia (4,260 x 10-11 – 5,561 x 10-10 mol/m2s), dibandingkan laju oksidasi mol besi total (3,102 x 10-18 – 9,090 x 10-09 mol/m2s). Kondisi ini disebabkan oleh kandungan besi dalam air lindian yang lebih banyak mengendap dibandingkan sulfat. Laju reaksi pyrite pada sampel COX jauh lebih rendah dari UOX, hal ini disebabkan oleh sampel COX yang lebih sedikit mengalami laju reaksi oksidasi dibandingkan UOX.
Co-Authors Gunatama, Fahmi Ilham Kusuma, G. J. Martiani Martiani, Martiani Prihartini, R. Putra, H. Sembiring, L. T. Sumantri, Ajis