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Pengaruh Variasi Media Pendingin Quenching Terhadap Kekerasan Baja Aisi 1045 Agung, Anugrah Agung Ramadhan; Elfahmi Dwi Kurniawan; Darti; Rudi Hermawan
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 11 No. 1 (2023)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

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Abstract

Baja AISI 1045 memiliki kandungan karbon berkisar 0,42% hingga 0,50% , penggunaan baja AISI 1045 sebagai komponen sparepart mesin seperti roda gigi, poros, kruk as, rantai dan batang penghubung piston. Upaya agar baja lebih tahan gesekan atau tekanan adalah dengan cara hardening. Tujuan penelitian ini untuk mengetahui pengaruh variasi media pendingin quenching terhadap kekerasan baja AISI 1045, jenis penelitian yang digunakan adalah penelitian eksperimen. Spesimen berbentuk silinder kecil dengan ukuran diameter 25 mm dan tebal 20 mm. Spesimen dipanaskan menggunakan tungku pemanas dengan suhu 850℃ dan holding time 28 menit, dengan media quenching solar, dromus oil dan air kelapa muda, dan diuji kekerasan vickers dengan beban 30 kgf. Hasil kekerasan tertinggi pada spesimen quenching air kelapa muda dengan nilai kekerasan 752,764 kg/mm2, kemudian spesimen quenching solar dengan nilai kekerasan 271,764 kg/mm2 dan nilai kekerasan terendah pada media quenching dromus oil 264,780 kg/mm2.
Analisis Hubungan Kualitas Pelayanan dengan Kepuasan Pasien Badan Penyelenggaraan Jaminan Sosial (BPJS) terhadap Pelayanan Pasoloran, Ririn; Adam, Arlin; Darti; Abdullah, Andi Zulkifli
HORIZON: Indonesian Journal of Multidisciplinary Vol. 4 No. 5 (2026): HORIZON: Indonesian Journal of Multidisciplinary (In-Press)
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/hijm.v4i5.7396

Abstract

Patient satisfaction among participants of the Social Security Administering Body (BPJS) is a crucial indicator for assessing the quality of healthcare services. This study aimed to analyze the impact of service quality—specifically the dimensions of tangibles, reliability, responsiveness, assurance, and empathy—on the satisfaction of BPJS patients at the Bokin Community Health Center (UPTD Puskesmas Bokin). An analytical study design with a cross-sectional approach was employed. The sample consisted of 100 BPJS patients selected via accidental sampling. Data were collected using a closed-ended Likert-scale questionnaire and analyzed using multiple linear regression. The results indicate that, overall, patients were satisfied with the services provided. The assurance dimension received the highest rating, whereas reliability required further attention. Regression results demonstrated that tangibles (B = 0.208; t = 2.115; p = 0.037), reliability (B = 0.242; t = 2.192; p = 0.031), responsiveness (B = 0.222; t = 2.139; p = 0.035), assurance (B = 0.305; t = 2.121; p = 0.037), and empathy (B = 0.179; t = 2.189; p = 0.031) all had a positive and significant effect on patient satisfaction. Continuous improvement of service quality is essential to support healthcare delivery that is responsive and oriented toward patient needs
Co-Authors Agung, Anugrah Agung Ramadhan Andi Zulkifli Abdullah Arlin Adam, Arlin Elfahmi Dwi Kurniawan Pasoloran, Ririn Rudi Hermawan