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All Journal TRIHAYU: Jurnal Pendidikan Ke-SD-an Sibatik Journal : Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan
Nugraheni, Salsabila
Unknown Affiliation
Arts Computer Science & IT Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Mathematics Social Sciences

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PENINGKATAN KETERAMPILAN UNGGAH-UNGGUH RAGAM KRAMA MELALUI MODEL PEMBELAJARAN ROLE PLAYING PADA SISWA KELAS IV SD N KLETERAN 3 Masjid, Akbar Al; Nugraheni, Salsabila
TRIHAYU: Jurnal Pendidikan Ke-SD-an Vol 7 No 1 (2020): TRIHAYU: Jurnal Pendidikan Ke-SD-an
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/trihayu.v7i1.8395

Abstract

This article aims to describe the increase in upload-upload skills of various manners through the role-playing learning model for grade IV students of SD Negeri Kleteran 3 Grabag. This action hypothesizes that the role-playing learning model can improve speaking skills, especially regarding the upload-upload variety of manners. Data collection techniques in this study were carried out using observation, interviews, tests, and documentation. The observations were analyzed by determining agreement on the assessment of speaking skills uploading a variety of student manners. Analysis of the data used is quantitative and comparative descriptive analysis. The results showed how applying the role-playing method to Javanese language skills subjects from pre-action to cycle I and cycle II increased motivation. The average value of speaking skills using poultry-really diverse students in the first cycle 75.47 and increased in the second cycle to 86.88. Students who completed in the first cycle were 18 students with a percentage of  56%  and in the second cycle students completed as many as 28 students with a percentage of 87,5%. Based on this research, learning using a variety of student manners increased through the role-playing method.
PENGARUH TEKANAN INJEKSI BAHAN BAKAR TERHADAP TEMPERATUR GAS BUANG AUXILIARY ENGINE NO. 1 DI MT. KAKAP Nugraheni, Salsabila; Edy Kristiyono, Antonius; Yudha Yudianto, Prima; Retno Gunarti, Monika; Marlia Sandi, Wulan
SIBATIK JOURNAL: Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan Vol. 5 No. 4 (2026)
Publisher : Penerbit Lafadz Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/sibatik.v5i4.4473

Abstract

Auxiliary engines in marine diesel generators frequently experience exhaust gas temperature (EGT) deviations due to suboptimal fuel injection pressure, contributing to inefficient combustion and increased emissions amid IMO 2025 sulfur regulations. This study aims to analyze the effect of fuel injection pressure on EGT in Auxiliary Engine No. 1 (Yanmar 6NY16L) onboard MT. Kakap and identify causal factors. Employing a sequential exploratory mixed-methods design, the population comprised all six cylinders with purposive sampling on the problematic cylinder (deviation >40°C) and 50 data points from pre-post maintenance measurements in April 2025. Instruments included injection pressure testers, EGT pyrometers, logbooks, and semi-structured interviews, analyzed via thematic coding, paired t-test, and Pearson correlation. Results revealed significant pressure increase from 200 to 240 kgf/cm² post-maintenance, normalizing EGT to 260°C average (t=9.834, p=0.01) with strong positive correlation (r=0.952). In conclusion, routine injector maintenance at 1500-2000 running hours prevents EGT deviations and enhances operational efficiency.
Co-Authors Akbar Al Masjid Edy Kristiyono, Antonius Marlia Sandi, Wulan Retno Gunarti, Monika Yudha Yudianto, Prima