Leoparlin, Alfridho
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PERBEDAAN PERBANDINGAN KOMPRESI TERHADAP TORSI, DAYA DAN KONSUMSI BAHAN BAKAR SPESIFIK BERBAHAN BAKAR PREMIUM, PERTALITE, DAN PERTAMAX PLUS PADA SEPEDA MOTOR EMPAT LANGKAH Leoparlin, Alfridho; Maksum, Hasan; Sugiarto, Toto; Novaliendry, Dony
ACADEMIA: Jurnal Inovasi Riset Akademik Vol. 5 No. 4 (2025)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/academia.v5i4.8087

Abstract

The purpose of this study was to determine the differences in torque, power, and specific fuel consumption produced by four-stroke motorcycles with different compression ratios and using different fuels. This study used an experimental method. The results of the study at a standard compression ratio of 9.6:1, the highest torque was 12.17 Nm using Pertamax Plus fuel, while the highest power was 5.77 Kw using Pertamax Plus fuel, and the lowest specific fuel consumption was in the use of Pertamax Plus fuel at 0.1192 Kg/kWh. At a compression ratio reduced to 8.9:1, the highest torque was 9.38 Nm using Pertamax Plus fuel, while the highest power was 4.03 Kw using Pertalite and Pertamax Plus fuel, while the lowest specific fuel consumption was in the use of Pertamax Plus fuel at 0.1537 Kg/kWh. When the compression ratio is increased to 10.3:1, the highest torque is 20.19 Nm using Pertamax Plus fuel, while the highest power is 6.67 Kw using Pertamax Plus fuel, while the lowest specific fuel consumption is when using Pertamax Plus fuel at 0.1258 Kg/kWh. ABSTRAK Tujuan penelitian adalah untuk mengetahui perbedaan torsi, daya dan konsumsi bahan bakar spesifik yang dihasilkan dari sepeda motor empat langkah dengan perbandingan kompresi berbeda dan menggunakan bahan bakar yang berbeda. penelitian ini menggunakan metode eksperimental. Hasil penelitian pada perbandingan kompresi standar 9,6:1 torsi tertinggi sebesar 12,17 Nm menggunakan bahan bakar pertamax plus, sedangkan daya tertinggi sebesar 5,77 Kw menggunakan bahan bakar pertamax plus, dan konsumsi bahan bakar spesifik terendah pada penggunaan bahan bakar pertamax plus 0,1192 Kg/kWh. Pada paat perbandingan kompresi diturunkan 8,9:1 torsi tertinggi sebesar 9,38 Nm menggunakan bahan bakar pertamax plus, sedangkan daya tertinggi sebesar 4,03 Kw menggunakan bahan bakar pertalite dan pertamax plus, sedangkan konsumsi bahan bakar spesifik terendah pada penggunaan bahan bakar pertamax plus 0,1537 Kg/kWh. Pada saat perbandingan kompresi dinaikkan 10,3:1 torsi tertinggi sebesar 20,19 Nm menggunakan bahan bakar pertamax plus, sedangkan daya tertinggi sebesar 6,67 Kw menggunakan bahan pertamax plus, sedangkan konsumsi bahan bakar spesifik terendah pada penggunaan bahan bakar pertamax plus 0,1258 Kg/kWh.  
Pengaruh Gaya Kepemimpinan Kepala Sekolah Terhadap Kinerja Guru di Sekolah: Systematic Literature Review Leoparlin, Alfridho; Naufal, Naufal; Jalinus, Nizwardi; Ernawati, Ernawati; Yustisia, Henny
Reflection Journal Vol. 5 No. 2 (2025): Desember
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/b1ps3c64

Abstract

Penelitian ini bertujuan untuk mengidentifikasi berbagai gaya kepemimpinan kepala sekolah dan menganalisis pengaruhnya terhadap kinerja guru melalui kajian Systematic Literature Review (SLR) terhadap 16 artikel ilmiah dari database akademik dan jurnal terindeks SINTA. Pendekatan ini dipilih untuk menemukan pola dan konsistensi hubungan antara gaya kepemimpinan dan kinerja guru. Hasil review secara konsisten menunjukkan bahwa gaya kepemimpinan kepala sekolah memiliki pengaruh yang positif dan signifikan terhadap kinerja guru. Dua gaya kepemimpinan spesifik yang terbukti efektif adalah Gaya Kepemimpinan Transformasional, dan Gaya Kepemimpinan Demokratis. Untuk mencapai kinerja optimal, kepala sekolah harus menjalankan peran multidimensi, termasuk sebagai pendidik, manajer, administrator, supervisor, motivator, dan inovator. Secara keseluruhan, mayoritas studi menegaskan bahwa kepemimpinan yang tepat, terutama gaya transformasional, adalah kunci utama dalam memotivasi dan meningkatkan kinerja serta kedisiplinan guru, dan efeknya akan semakin optimal jika didukung oleh motivasi kerja, komunikasi yang efektif, dan budaya sekolah yang positif. Studi ini berkontribusi dalam memberikan pemetaan sistematis mengenai pola hubungan gaya kepemimpinan kepala sekolah dan kinerja guru sebagai referensi pengembangan kepemimpinan pendidikan di Indonesia.  The Influence of Principals’ Leadership Styles on Teachers’ Performance in Schools: A Systematic Literature Review  This research aims to identify various principal leadership styles and analyze their influence on teacher performance through a Systematic Literature Review (SLR) of 16 scientific articles from academic databases and SINTA-indexed journals. This approach was chosen to find patterns and consistency in the relationship between leadership style and teacher performance. The review results consistently show that the principal's leadership style has a positive and significant influence on teacher performance. Two specific leadership styles proven to be effective are the Transformational Leadership Style and the Democratic Leadership Style. To achieve optimal performance, the principal must carry out a multidimensional role, including as an educator, manager, administrator, supervisor, motivator, and innovator. Overall, the majority of studies confirm that appropriate leadership, especially the transformational style, is the main key to motivating and improving teacher performance and discipline, and its effect will be further optimized if supported by work motivation, effective communication, and a positive school culture.This study contributes to providing a systematic mapping of the relationship between school principal leadership styles and teacher performance as a reference for educational leadership development in Indonesian
Model-Model Implementasi Link and Match Antara Sekolah Menengah Kejuruan dan Dunia Industri : Systematic Literature Review Leoparlin, Alfridho; Risna, Mega; Pebrianti, Laras; Abdullah, Rijal; Hidayat, Hendra
Reflection Journal Vol. 5 No. 2 (2025): Desember
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/t0d3yk55

Abstract

Abstrak Penelitian ini dilatarbelakangi oleh kesenjangan kompetensi antara lulusan Sekolah Menengah Kejuruan (SMK) dan kebutuhan Dunia Usaha dan Dunia Industri (DUDI), yang tercermin pada tingginya tingkat pengangguran lulusan serta rendahnya relevansi keterampilan terhadap tuntutan pasar kerja. Penelitian ini bertujuan mengidentifikasi dan menganalisis model implementasi kebijakan Link and Match di SMK sebagai strategi penyelarasan standar kompetensi lulusan dengan kebutuhan DUDI. Metode yang digunakan adalah Systematic Literature Review (SLR) terhadap 15 studi relevan yang dipublikasikan dalam jurnal nasional. Tahapan SLR meliputi perumusan pertanyaan penelitian, penetapan kriteria inklusi dan eksklusi, ekstraksi data, serta sintesis temuan. Hasil kajian menunjukkan bahwa implementasi Link and Match dilakukan melalui berbagai model, seperti Competency Based Training (CBT), Teaching Factory (TeFa), Kelas Industri, kemitraan IDUKA, serta konsep 8+i pada SMK Pusat Keunggulan. Secara umum, model-model tersebut efektif meningkatkan kompetensi teknis, kesiapan kerja, keterserapan lulusan, dan kesesuaian kurikulum dengan standar industri. Keberhasilan implementasi dipengaruhi oleh manajemen program yang sistematis, dukungan mitra industri, kualitas pelatihan guru, serta evaluasi berkelanjutan berbasis model CIPP. Secara teoretis, kajian ini menambah pemahaman konseptual mengenai model kolaborasi SMK–DUDI dalam konteks pendidikan vokasi di Indonesia. Models of Link and Match Implementation Between Vocational High Schools and the Industrial World: A Systematic Literature Review This research is motivated by the competency gap between Vocational High School (SMK) graduates and the needs of the Business and Industry World (DUDI), which is reflected in the high unemployment rate of graduates and the low relevance of skills to job market demands. This study aims to identify and analyze the implementation model of the Link and Match policy in SMK as a strategy to align graduate competency standards with DUDI needs. The method used is a Systematic Literature Review (SLR) of 15 relevant studies published in national journals. The SLR stages include formulating research questions, determining inclusion and exclusion criteria, data extraction, and synthesizing findings. The results of the study indicate that the implementation of Link and Match is carried out through various models, including Competency-Based Training (CBT), Teaching Factory (TeFa), Industrial Classes, IDUKA partnerships, and the 8+i concept at SMK Centers of Excellence. In general, these models are effective in improving technical competency, work readiness, graduate absorption, and curriculum alignment with industry standards. The success of implementation is influenced by systematic program management, support from industry partners, the quality of teacher training, and continuous evaluation based on the CIPP model. Theoretically, this study adds to the conceptual understanding of the SMK–DUDI collaboration model in the context of vocational education in Indonesia.