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All Journal Jurnal Pendidikan Teknik Mesin Undiksha Jurnal Pendidikan Guru (JPG) Jurnal Ekonomi dan Perbankan Syariah Journal of Central Banking Law and Institutions SEMINAR NASIONAL SOSIAL, SAINS, PENDIDIKAN, HUMANIORA International Journal of Industrial Innovation and Mechanical Engineering Jurnal Penelitian Pendidikan
Edy Suprapto
Unknown Affiliation
Humanities Astronomy Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Impact of Engine Downsizing on Fuel Economy and Carbon Footprint : A Simplified Modeling Approach Priyono Priyono; Damianus Manesi; Edy Suprapto; Fahrizal Fahrizal; Wofrid E. Bianome
International Journal of Industrial Innovation and Mechanical Engineering Vol. 2 No. 2 (2025): May : International Journal of Industrial Innovation and Mechanical Engineering
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijiime.v2i2.269

Abstract

Global climate change demands immediate technological advancements, particularly in the transport industry that continues to use fossil fuels. One viable solution is to reduce the size of vehicle engines to make them more fuel-efficient and lower carbon emissions. The purpose of this research is to assess the effect of reducing engine size on fuel consumption and CO₂ emissions in low-cost green car hatchbacks in Indonesia. The technique employed is straightforward analytical modeling, employing Pearson correlation analysis and linear regression among three significant variables: engine capacity, fuel economy, and CO₂ emission. The data are obtained from the technical specifications of four hatchback automobile models, all of which have an engine capacity of less than 1,200 cc. Findings indicate that smaller engine capacity is accompanied by greater fuel economy and lower carbon emissions. The lowest engine size of 998 cc is used in the Toyota Agya, which demonstrates the most efficient fuel and lowest emissions. The statistical analysis shows that there is an inverse relationship between engine size and fuel efficiency, but a positive relationship between engine size and CO₂ emissions. The limitation of sample size causes reduced statistical power of the model. In conclusion, engine downsizing can prove to be a productive approach in promoting green schemes, but additional research with a larger data set and other determinants must be undertaken to establish a more advanced and precise model.
Peningkatan Hasil Belajar Matematika Kelas III Menggunakan Media Vidio Pembelajaran Interaktif Dwianing Febriyanti; Edy Suprapto; Langgeng Widoyo
JPG: Jurnal Pendidikan Guru Vol. 5 No. 3 (2024): JPG: Jurnal Pendidikan Guru
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/jpg.v5i3.15103

Abstract

Penelitian ini bertujuan untuk mengevaluasi penggunaan media video pembelajaran interaktif dalam meningkatkan hasil belajar matematika pada materi mencari keliling bangun datar di SDN 1 Wonoketro, kelas III, tahun pelajaran 2022/2023. Jenis penelitian yang digunakan adalah pra-eksperimen dengan desain penelitian one-group pretest-posttest. Sampel penelitian sebanyak 30 siswa kelas III yang dipilih secara acak. Teknik pengumpulan data menggunakan soal pretest dan posttest untuk mengukur peningkatan hasil belajar mereka. Data yang terkumpul dianalisis menggunakan uji-t berpasangan untuk membandingkan skor pretest dan posttest. Hasil penelitian menunjukkan adanya peningkatan yang signifikan pada hasil belajar matematika siswa setelah menggunakan media video pembelajaran interaktif. Rata-rata skor posttest (M = 80,5, SD = 7,2) secara signifikan lebih tinggi dibandingkan dengan skor pretest (M = 65,2, SD = 6,9); t(29) = 9,78, p < 0,001. Hal ini menunjukkan bahwa penggunaan media video pembelajaran interaktif efektif dalam meningkatkan pemahaman siswa dalam mencari keliling bangun datar.
Gold Trade-Based Money Laundering and Central Banking Governance in Indonesia: Implications for Reserve Integrity, Payment Systems, and Financial System Stability Edy Suprapto; Pujiyono Pujiyono; Yunus Husein; Agung Andiojaya; Edy Suprapto; Pujiyono Pujiyono; Yunus Husein; Agung Andiojaya
Journal of Central Banking Law and Institutions Vol. 5 No. 2 (2026)
Publisher : Bank Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21098/jcli.v5i2.506

Abstract

Trade-based money laundering (TBML) has increasingly exploited commodities markets, including gold trading, to disguise illicit cross-border financial flows. In Indonesia, the growing integration of gold markets with the financial system has created vulnerabilities that threaten the financial system’s integrity, endangering its stability and effective central bank governance. This paper examines how TBML using gold affects key domains of central bank oversight in Indonesia, particularly reserve integrity, payment system monitoring, and financial system stability. The study employs a legal-institutional analytical approach, combining regulatory analysis with an institutional examination of central banking mandates and anti-money-laundering governance frameworks. The findings indicate that using gold to facilitate TBML can obscure the traceability of cross-border financial transactions, complicate monitoring of payment systems, and potentially weaken safeguards related to reserve management and financial system oversight. These vulnerabilities create governance challenges for financial authorities responsible for maintaining financial system integrity. From a normative legal perspective, the study highlights the need for strengthened regulatory coordination, improved oversight of gold-related financial transactions, and enhanced integration between supervision of Anti-Money Laundering and Combating the Financing of Terrorism (AML/CFT) measures and central bank regulatory design. Such measures are essential for safeguarding the integrity of the reserves and supporting the stability of the financial system.
Co-Authors Agung Andiojaya Agung Andiojaya Basri K Damianus Manesi Davi Apriandi Dwianing Febriyanti Edy Suprapto Elzra Melasevix Fahrizal Fahrizal Fathiya Khaira Ummah Ika Hidayatul Masynuah Ika Krisdiana Langgeng Widoyo Mau, Sealtial Nurlina Wijayati Orisa Satifa Priyono Priyono Priyono Pujiyono Pujiyono Pujiyono Pujiyono Pupung Puspita Ningrum Rahma Fadhila Nuriya Fachmi SANUSI SANUSI Sardulo Gembong Sari Dewi Agustin Vera Dewi Susanti Wasilatul Murtafiah Wofrid E. Bianome Yunus Husein Yunus Husein