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All Journal Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Elvan, Elvan
Unknown Affiliation
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Pengaruh Kemampuan Berpikir Kritis dan Motivasi Kerja terhadap Learning Improvement, dengan Project Based Learning sebagai Variabel Mediasi, pada Guru Sekolah SMP di Kota Pekanbaru Elvan, Elvan; Zaman, Kamar
Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan Vol. 18, No. 2 : Al Qalam (Maret 2024)
Publisher : Sekolah Tinggi Ilmu Al-Qur'an (STIQ) Amuntai Kalimantan Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35931/aq.v18i2.3388

Abstract

Tujuan dari penelitian ini adalah untuk menguji pengaruh kemampuan berfikir kritis dan motivasi kerja terhadap learning improvement yang dimediasi oleh project based learning pada guru sekolah SMP di Kota Pekanbaru. Penelitian ini mengadopsi pendekatan kuantitatif dengan sudut pandang deskriptif. Pengambilan sampel biasanya dilakukan secara acak. Perangkat lunak Structural Equation Modeling berbasis Partial Least Square (SEM-PLS). Hasil penelitian ini menunjukkan bahwa secara hubungan langsung kemampuan berfikir kritis tidak berpengaruh terhadap learning improvement, sedangkan motivasi dan project based learning berpengaruh terhadap learning improvement. Dalam hubungan tidak langsung berfikir kritis tidak berpengaruh terhadap learning improvement melalui project based learning, sedangkan motivasi berpengaruh terhadap learning improvement melalui project based learning.
Analisa Kekuatan Sambungan Las Tig pada Roll Bar Mobil KMHE dengan Alumunium 6061 Melalui Uji Bending Elvan, Elvan; Lubis, M. Sobron Yamin; Darmawan, Steven
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.203

Abstract

The welding process is a production process that aims to combine two types of materials into a usable component. In the manufacturing industry, the Tungsten Inert Gas welding process is widely used in industrial processes requiring high accuracy, good welding quality, and welding results. This study compares the strength of welded joints by varying the welding current. This research uses 6061 aluminum material to determine the strength of Tungsten Inert Gas welding joints. The study focused on the strength of Tungsten Inert Gas welding joints with current variations of 140 A, 160 A, and 180 A using a testing method using a three-point bending test to determine the right current variation in the Tungsten Inert Gas welding process. This study found that the current variation of 160 A with a strength of 203.7 N/mm2 is better than 140 A, 139.9 N/mm2, and 180A, 192.1 N/mm2 in Tungsten Inert Gas welding joints.
Co-Authors Sobron Lubis Steven Darmawan, Steven Zaman, Kamar