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All Journal Journal Of Chemical Process Engineering (JCPE) Harmoni Pendidikan: Jurnal Ilmu Pendidikan
Masruhin Masruhin
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Languange, Linguistic, Communication & Media Mathematics Other

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PENJERAPAN LOGAM BERAT TIMBAL (Pb) DENGAN MENGGUNAKAN LIGNIN HASIL ISOLASI JERAMI PADI Masruhin Masruhin; Rismawati Rasyid; Syamsuddin Yani
Journal of Chemical Process Engineering Vol 3, No 1 (2018)
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1055.222 KB) | DOI: 10.33536/jcpe.v3i1.189

Abstract

Adsorpsi ion logam berat timbal (Pb) dengan menggunakan lignin hasil isolasi jerami padi telah dilakukan. Kemampuan lignin dari jerami padi untuk menyerap ion timbal telah dievaluasi dengan memvariasikan waktu adsorpsi dan pH larutan. Konsentrasi ion timbal diukur dengan spektrometer adsorpsi atom. Hasil menunjukkan bahwa kondisi optimum ion Timbal (Pb) oleh lignin dicapai pada saat adsorpsi 30 menit, pHlarutan 5, dan konsentrasi tembaga dari 10 ppm dengan adsorpsi efisiensi 88,765%. Dalam penelitian ini, diperoleh persamaan Langmuir 1/m = 0,007 1/C +0,016 dan persamaan Freundlich, Log m = 0,690 log C + 1,697.
Pengembangan Variasi Dribbling Sepak Bola Berbasis Vidio di SSB Putra Arema Masruhin Masruhin; Roesdiyanto Roesdiyanto; Kurniati Rahayuni
Harmoni Pendidikan : Jurnal Ilmu Pendidikan Vol. 1 No. 4 (2024): November : Harmoni Pendidikan : Jurnal Ilmu Pendidikan
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/hardik.v1i4.708

Abstract

This study aims to develop variations of video-based soccer dribbling exercises at SSB Putra Arema that can be used by coaches as a medium for variations of soccer dribbling exercises that can be applied to players. This research is a research development or Research and Development. The method used is the ADDIE model, but it was modified to ADD, considering the current conditions that are currently in the Covid-19 pandemic which allows for social restrictions in direct interaction with players, this is done due to time and cost constraints. ADDIE research into ADD The development of variations of this exercise is carried out in several stages, namely: 1) needs analysis (Analysis), 2) exercise variation design (Design), 3) product development by validating experts and revisions (Develop). In this study, there was no product trial because the situation was not possible, so the author modified the method used by needs analysis to obtain information by using interviews. Meanwhile, the instrument for validation is using a questionnaire and assessment. The results of this study indicate that variations in soccer dribbling training are appropriate to be used as a guide for variations in soccer dribbling training for coaches
Co-Authors Kurniati Rahayuni Rismawati Rasyid Roesdiyanto Syamsuddin Yani