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All Journal Jurnal Metalurgi dan Material Indonesia Socius: Social Sciences Research Journal
M. Maulana Ibrahim
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Religion Arts Humanities Automotive Engineering Chemistry Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media

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Komposit Grafit-Polistirena Diperkuat Poliuretan sebagai Penyerap Gelombang Akustik : Fabrication of Polyurethane Composite Foam with Graphite-Polystyrene Filler for Improved Sound Absorption Adhi Satriyatama; Haris Amaldi; M. Maulana Ibrahim; Aditianto Ramelan
Jurnal Metalurgi dan Material Indonesia Vol. 2 No. 3 (2019): Desember
Publisher : Badan Kerja Sama Pendidikan Metalurgi dan Material (BKPMM)

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Abstract

Noise, harshness, and vibration (NHV) are problems encountered when driving a vehicle. This can cause serious problems for drivers if exposed to NHV for a long time. In order to avoid the NHV, vehicle are equipped with acoustic tile which functions to absorb vibration from the sound wave and reduce the noise caused by the vehicle’s engine. Polyurethane foam is commonly used as a sound absorption material because of its high sound absorption efficiency. The study aimed at investigating polystyrene (PS) and graphite (G) fillers with polyurethane matrix for improving acoustic property. The research started with optimization of composite that characterized using sound absorption intensity parameters at frequencies of 50 Hz-6000 Hz, and the optimum results obtained at matrix/filler 92.8%wt. The composite morphology is analyzed using SEM-EDX, optical microscopy, and the density. Mechanical test is conducted using Universal Testing Machine (UTM) and achieved the optimum compressive strength at 60G/40PS with 0.65 MPa. The absorption of acoustic waves property was tested in the frequency range 50 Hz-6300 Hz using an impedance tube and obtained the optimum composition at 0G/100PS.
Description of the Sorogan Method in learning the Qur'an at the Al-Irfan IslamBiBc Boarding School in Bukittinggi Hendra H; Hakekat Rabbani Ikhsan; Afrizal A; M. Maulana Ibrahim; Muhammad Nurhabib; Zulfani Sesmiarni
Socius: Jurnal Penelitian Ilmu-Ilmu Sosial Vol 3, No 5 (2025): December 2025
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.17922019

Abstract

This study aims to provide a comprehensive overview of the application of the sorogan method in the Qur'an learning process at the Al-Irfan Islamic Boarding School in Bukittinggi. As a traditional method that has long been a hallmark of Islamic boarding schools, sorogan is still practiced because it is considered capable of improving pronunciation accuracy, understanding tajwid, and building closeness between teachers and students. This study used a descriptive qualitative approach with data collection techniques through direct observation, in-depth interviews, and document review. While data analysis was conducted using the interactive model of Miles, Huberman, and Saldana. The research findings indicate that sorogan functions as an important mechanism in fostering students' personal reading skills, strengthening character formation, and creating a more humanistic learning atmosphere. Regular implementation, group division according to ability level, and individual reading evaluations contribute to improving student competency. However, the study also identified several obstacles, particularly related to the motivation and discipline of some students. Overall, the research results confirm that sorogan remains relevant in contemporary Islamic boarding school education and has the potential to be improved through strengthening motivation, more effective classroom management, and more targeted mentoring.
Co-Authors Adhi Satriyatama Afrizal A Hakekat Rabbani Ikhsan Haris Amaldi Hendra H Muhammad Nurhabib Ramelan, Aditianto Zulfani Sesmiarni