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All Journal Unram Law Review Jurnal Penelitian
Muhammad Syahrul Ramadhan
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Aerospace Engineering Education Electrical & Electronics Engineering Law, Crime, Criminology & Criminal Justice Transportation

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ANALISIS KEKUATAN TARIK MATERIAL KOMPOSIT SERAT ALAM DAUN AGEL DENGAN VARIASI MATRIK EPOXY DAN POLYESTER PADA ORIENTASI ARAH SERAT 00 dan 900 Muhammad Syahrul Ramadhan; Lado Rislya Prakasa -
Jurnal Penelitian 194-203
Publisher : Politeknik Penerbangan Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46491/jp.v6i3.567

Abstract

Nilai kekuatan tarik material komposit berpenguat serat daun agel dengan variasi penggunaan jenis matrik, orientasi arah serat, dan tambahan filler sebagai penguat masih belum dikaji hingga saat ini. Melalui penelitian ini dilakukan pengkajian pengaruh penggunaan jenis matrik epoxy dan polyester, serta susunan orientasi arah serat 00 dan 900, dan tambahan filler berupa serbuk kayu terhadap nilai kekuatan tarik material komposit berpenguat serat daun agel. Proses fabrikasi material komposit dilakukan melalui metode hand lay-up dengan bentuk spesimen sesuai standar ASTM D3039, kemudian uji tarik dilakukan menggunakan alat Universal Testing Machine (UTM). Adapun hasil kekuatan tarik material komposit berpenguat serat daun agel yang difabrikasi dengan matrik epoxy pada arah serat 00 dan 900 masing-masing adalah sebesar 9,6 MPa dan 9,2 MPa, kemudian material komposit berpenguat serat daun agel yang difabrikasi dengan matrik polyester pada arah serat 00 dan 900 masing-masing adalah sebesar 7,2 MPa dan 14,4 MPa.
PENYALAHGUNAAN POSISI DOMINAN OLEH GOOGLE DALAM SISTEM PEMBAYARAN APLIKASI DI INDONESIA Hutabarat, Sylvana Murni Deborah; Muhammad Syahrul Ramadhan
Unram Law Review Vol 9 No 2 (2025): Unram Law Review (ULREV)
Publisher : Faculty of Law, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ulrev.v9i2.413

Abstract

The development of the digital economy in Indonesia has reinforced Google’s dominance through the Google Play Store as the primary platform for application distribution among Android users. Google’s policy mandating the use of the Google Play Billing System (GPBS), with service fees of up to 30%, has raised significant legal and economic concerns. This study analyzes Google’s dominance within Indonesia’s application ecosystem under Law No. 5 of 1999 concerning the Prohibition of Monopolistic Practices and Unfair Business Competition. Employing a normative juridical method, this research adopts statutory, conceptual, and case-based approaches to evaluate whether Google’s policy constitutes an abuse of dominant position. The findings reveal that with a market share exceeding 90%, Google satisfies the criteria for a dominant position as stipulated in Article 25 of Law No. 5 of 1999. The restriction of alternative payment systems and imposition of high service fees potentially hinder competition and harm local application developers. The decision by the Indonesian Competition Commission (KPPU) to sanction Google reflects an effort to enforce the law and foster a fairer digital ecosystem in Indonesia.
Co-Authors Hutabarat, Sylvana Murni Deborah Lado Rislya Prakasa -