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All Journal International Journal of Evaluation and Research in Education (IJERE) Reaktor TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan METANA Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Jurnal Teknologi Jurnal Dinamika Penelitian Industri JST ( Jurnal Sains Terapan ) Journal of Research and Technology Jukung (Jurnal Teknik Lingkungan) Jurnal Perikanan Universitas Gadjah Mada CHEESA: Chemical Engineering Research Articles Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Jurnal Teknologi Terapan Jurnal Riset Teknologi Industri Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Jurnal Riset Teknologi Pencegahan Pencemaran Industri Waspada : Jurnal Wawasan Pengembangan Pendidikan JURNAL REKAYASA KIMIA & LINGKUNGAN
Adhi Setiawan
Politeknik Perkapalan Negeri Surabaya
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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KOROSI BAJA KARBON API 5L GRADE B SEBAGAI FLOWLINE PRODUKSI GAS ALAM Setiawan, Adhi; Alfinura Fajrin; M. Miftahul Munir; M. Ari
Journal of Research and Technology Vol. 4 No. 1 (2018): JRT Volume 4 No 1 Jun 2018
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v4i1.819

Abstract

Corrosion that occurs in a gas flowline is a serious problem because it can cause leaks that lead to material loss and environmental pollution. The aims of this research were to analyze the corrosion occurred in gas flowline of carbon steel 5l Grade B and the effect of inhibitor TIC-8002 GCI to the corrosion rate of metal. This research was conducted using SEM-EDX to analyze and produce various types of metals and corrosion crust. Metals corrosion test and the effect of inhibitors on the corrosion rate of metals were carried out by linear polarization methods. The result of SEM-EDX showed that inner pipe surface occurred pitting corrosion caused by dissolved chloride ions in the electrolite that flows in the pipeline. The result of XRD showed that corrosion products of carbon steel were Fe2O3 and FeOOH. The result of linear polarization showed that the corrosion rate of steel about 0.642 mmy without using inhibitor. The addition of an inhibitor can reduce the corrosion rate in carbon steel. The increase in inhibitor concentration from 10 ppm to 50 ppm can reduce the corrosion rate from 0.633 mmy to 0.394 mmy along with an increase in inhibition efficiency from 1.32% to 38.6%.
Analysis of factors in integrated internship models for preservice Islamic education teachers using exploratory factor analysis Karwadi, Karwadi; Razak Zakaria, Abd; Setiawan, Adhi; Ferdi Hasan, Moh.
International Journal of Evaluation and Research in Education (IJERE) Vol 15, No 1: February 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v15i1.35767

Abstract

This research identifies key success factors of integrated internship models for prospective Islamic Religious Education (PAI) teachers using exploratory factor analysis (EFA), addressing critical gaps where empirical evidence in religious teacher preparation remains limited. Analyzing 218 PAI students across four Yogyakarta universities through mixed-methods design, EFA revealed a four-factor structure explaining 63.4% variance: observation competence (28.7%), microteaching (13.8%), teaching practice (11.2%), and spiritual reflection (9.7%). The identification of spiritual reflection as an independent factor represents a novel contribution not documented in international teacher education literature, empirically validating integration of spiritual competencies within professional preparation frameworks. The internship component assessment scale (ICAS) demonstrates strong psychometric properties (CVI=0.87, α=0.84), providing the first culturally responsive instrument for Islamic education contexts. This study proposes the integrated internship spiral model (IISM) emphasizing cyclical reinforcement rather than linear progression, challenging conventional designs. Educational implications include redesigning PAI teacher professional education curriculum with proportional resource allocation, implementing mentor training for assessing spiritual-pedagogical dimensions, and embedding technology integration across internship phases. Future research should pursue longitudinal validation, cross-contextual studies in other religious education settings, instrument development strengthening spiritual factor reliability, and comparative effectiveness studies. This research demonstrates that culturally responsive teacher preparation can honor religious authenticity while advancing professional excellence, contributing to holistic transformation of PAI internship programs with potential global application.
Co-Authors Abda Abda Achmad Fatoni Agung Nugroho Agung Nugroho Agung Nugroho Agung Nugroho Agung Nugroho Ahmad Erlan Afiuddin Aisyah Nur Rahmadania Alfinura Fajrin Alfinura Fajrin Amilia Kristina Dewi Ananda Augista Firtsanti Anggara Trisna Nugraha Anggraini, Febby Dwi Melanny Arianingtyas, Nadya Ayu Arita Rochma Nilasari Azzahro, Annisa Basyiruddin, Fariz Bawafi, Muhammad Iqbal Ali Cahyono, Luqman Catur Rini Widyastuti, Catur Rini Chelvin Sugiarto Citra Eripramita Yunus Denny Dermawan Denny Dermawan Deris Eko Saputro Devina Puspitasari Devina Puspitasari Dewi, Tanti Utami Utami Dhani, Mey Rohma Dian Nur Hanifah Dika R. Widiana Dwi Rasy Mujiyanti Dzulfikar, Muhammad Hanif Eka Mayangsari, Novi Endang Pudji Purwanti Fajrin, Alfinura Falenia Firdatul Jannah Fariha, Chandra Nur Ferdi Hasan, Moh. Firnandi, Rahmad Fitri Hardiyanti Fitri Hardiyanti Gunawan, Karina Larasati Hanastasia, Rizka Lutfita Hanifah, Dian Nur Hanifah, Dian Nur Hanoni Hanun, Jihan Nabillah Inayatul Wulandari Indri Santiasih Karwadi Karwadi Lintang Indra Liuqil Mahfudz Luqman Cahyono M. Ari M. Ari M. Miftahul Munir M. Miftahul Munir Maulidya, Risya Dwi Mirna Apriani Mochamad Luqman Ashari Mochamad Yusuf Santoso Mochammad Choirul Rizal Muhamad Ari Muhammad Asrul Nizam Mukhlis Mukhlis Munir, M. Miftahul Nilasari, Arita Rochma Nora Amelia Novitrie Novi Eka Mayangsari Novitrie, Nora Amelia Nugroho, Agung Nurhidayati, Dyah Isna Pawitra, Tiane Prianto, Haekal Irfan Titan Prima Astuti Handayani Priyambodo N. A. Nugroho Puguh Pribadhi Purwanti, Endang Pudji Puspitasari, Devina Putri, Desita Ramadona Syah Qurrotul Aini Rahmawati, Devi Ayu Razak Zakaria, Abd Rizki Medy Prasetyo Rizki Noviana Damayanti Saputro, Deris Eko Satriavi, Aulia Diva Setiani, Vivin Siti Muthi’ah Tanti Utami Dewi Tarikh Azis Ramadani Tri Bagus Setiawan Utomo, Agung Prasetyo Vira Fadilah Qurani Vivin Setiani Vivin Setiani Widiyastuti Widiyastuti Widiyastuti Widiyastuti Widiyastuti Widiyastuti Winardi, Sugeng Wiwik Dwi Pratiwi Wiwik Dwi Pratiwi, Wiwik Dwi