Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Journal of Sylva Indonesiana The Elementary Journal
Ahmad Syahrir
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Earth & Planetary Sciences Education Languange, Linguistic, Communication & Media Mathematics Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
The RPUF Composite’s Physical and Mechanical Properties with Ramie Stem Particle Reinforcement Stafian Nisa, Rihab; Dede Hermawan; Sasa Sofyan Munawar; Deni Purnomo; Bambang Subiyanto; Ismadi; Ahmad Syahrir; Fazhar Akbar
Journal of Sylva Indonesiana Vol. 7 No. 01 (2024): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v7i01.10254

Abstract

Rigid polyurethane foam (RPUF) is a common insulation material that has low thermal conductivity and good mechanical properties. The qualities of RPUF may be enhanced by adding natural fiber reinforcing. The purpose of this work is to examine how the mechanical and physical characteristics of RPUF composite are affected by the amount of ramie stem particles present. Japanese Industrial Standard (JIS) A 5908-2003 is the basis for the mechanical test (modulus of elasticity, modulus of rupture, compressive strength, internal bond) and the physical test (density, moisture content, water absorption). The study's findings suggest that the physical properties of the RPUF composite were affected by the addition of ramie particles for reinforcement. The density increase in particle content 2.5% – 7.5% range, is not statistically significant. The MC and WA increased statistically significantly. The values of MOE and MOR were not significantly different. In fact, with the addition of 2.5% and 5% ramie particles, the compressive strength value was higher than the RPUF composite without ramie particle filler. Then overall, the IB value was increased by increasing the ramie particles in the RPUF composite. The addition of 2.5-5% ramie particles into the RPUF composite showed optimum results in mechanical properties. Thereby, the addition of ramie particles in the RPUF composite means reducing the use of polyurethane. Therefore, it can reduce production costs. Then the product is more environmentally friendly
PENINGKATAN KINERJA GURU DALAM PROSES PEMBELAJARAN MELALUI SUPERVISI KLINIS PENGAWAS DI MADRASAH IBTIDAIYAH BINAAN WILAYAH KEC. MUNJUNGAN KAB. TRENGGALEK Ahmad Syahrir
The Elementary Journal Vol. 1 No. 1 (2023): April 2023
Publisher : Gerasi Insan Nusantara

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

Abstract

Dalam meningkatkan kemampuan guru dalam menjalankan peran dan fungsinya secara efektif terutama dalam penyusunan program pembelajaran di sekolah, maka peningkatan mutu pembelajaran perlu dilakukan secara kontinyu dan berkelanjutan oleh pengawas di sekolah yang menjadi tanggung jawabnya melalui supervisi klinis, ini sangat diperlukan agar keefektifan dan tujuan pembelajaran di sekolah dapat tercapai. Tujuan dari penelitian tindakan ini adalah untuk mengetahui sejauh mana pengaruh pembinaan Pengawas melalui supervisi klinis dalam meningkatkan kinerja guru di Madrasah Ibtidaiyah Binaan Wilayah Kec. Munjungan Kab. Trenggalek. Dalam penelitian tindakan ini dilakukan dalam 3 siklus, dari hasil tindakan yang dilakukan terbukti dapat meningkatkan kinerja guru dengan mencapai standar ideal. Dari 62,05 % pada Siklus l, dapat meningkat menjadi 72,05 % pada siklus II, dan siklus ke III meningkat menjadi 86,07 %. Hasil penelitian tindakan ini menunjukkan bahwa pembinaan pengawas melalui supervisi klinis pengawas adalah efektif dapat meningkatkan kinerja guru di di Madrasah Ibtidaiyah Binaan Wilayah Kec. Munjungan Kab. Trenggalek
Co-Authors Bambang Subiyanto Dede Hermawan Deni Purnomo Fazhar Akbar Ismadi Sasa Sofyan Munawar Stafian Nisa, Rihab