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All Journal Jurnal Ekonomi dan Bisnis ARMATUR : Artikel Teknik Mesin dan Manufaktur Transekonomika : Akuntansi, Bisnis dan Keuangan
Dwi Ratnasari, Emma
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Aerospace Engineering Arts Humanities Automotive Engineering Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Aluminium Anodizing Sebagai Material Alternatif Velg Kendaraan Mulyaningsih, Nani -; Pramono, Catur; Dwi Ratnasari, Emma; Faishal, M. Noor; Putra, Exnacius
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 5 No. 1 (2024): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v5i1.5249

Abstract

Aluminum is a type of metal lightweight and easy to shape so it is widely used for several applications including vehicle wheels. The surface of vehicle wheels needs a certain roughness/smoothness to be more aesthetically appealing and production defects during the manufacturing process can be reduced. Anodizing on aluminum has been studied before, but so far there are still not many studies that specifically analyze the results of anodizing on surface smoothness. The purpose of this study is to analyze the roughness of aluminum anodization results when varying the immersion time. Results of this study are compared to the standard roughness of vehicle wheels. The method used is the anodizing process with variable anodizing times of 40, 45, 50, 55, 60, 65 minutes. Then surface roughness testing was carried out using a roughness tester. The results showed that anodizing time plays a role in determining the surface roughness / smoothness of the material. The longer the anodizing time the rougher the resulting surface. The best roughness value occurs in the 40-minute time variation with a roughness value of 0.7683 µm and can meet the DIN 3760 quality standard. With this information, an alternative material to replace vehicle wheels The purpose of this study is to analyze the roughness of aluminum anodizing results by varying the soaking time. The results of this study were compared with the standard roughness of car wheels.
ANALISIS PENGARUH INDEKS PEMBANGUNAN MANUSIA, JUMLAH TENAGA KERJA, RASIO KETERGANTUNGAN DAN RASIO JENIS KELAMIN TERHADAP PERTUMBUHAN EKONOMI DI JAWA TENGAH TAHUN 2015-2021 Isnaini, Avivah; Nur Sarviah, Sudati; Dwi Ratnasari, Emma
TRANSEKONOMIKA: AKUNTANSI, BISNIS DAN KEUANGAN Vol. 3 No. 3 (2023): May 2023
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/transekonomika.v3i3.432

Abstract

Economic growth is a long-term problem that is always faced by a country. Central Java Province is a province that has a low economic growth rate among other provinces on the island of Java. The purpose of this study is to see the effect of human development index, total labor, dependency ratio and sex ratio on economic growth in Central Java in 2015-2021. The analytical tool used is the Fixed Effect Model (FEM) panel data regression. The data used is secondary data from 35 districts / cities in Central Java. The results showed that the human development index, the number of workers and the sex ratio had a positive effect on economic growth in Central Java, while the dependency ratio had a negative effect on economic growth in Central Java.
Human resource quality, technology, welfare, and corruption: Empirical evidence in middle-income countries Sasana, Hadi; Dwi Ratnasari, Emma; Atika; Hidayah, Atika
Jurnal Ekonomi dan Bisnis Vol. 28 No. 1 (2025)
Publisher : Fakultas Ekonomika dan Bisnis Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24914/jeb.v28i1.13599

Abstract

Penelitian ini bertujuan untuk menganalisis dampak kualitas sumber daya manusia, teknologi, keterbukaan dan kebebasan ekonomi, kesejahteraan, serta penanaman modal asing terhadap korupsi di negara-negara ASEAN berpendapatan menengah. Data yang digunakan dalam penelitian ini adalah data panel dari 7 negara ASEAN berpendapatan menengah dari tahun 2012 hingga 2021. Hasil penelitian menunjukkan bahwa kualitas sumber daya manusia, teknologi, dan penanaman modal asing tidak berdampak signifikan terhadap korupsi. Kesejahteraan (diukur dengan PDB per kapita), kebebasan ekonomi, dan keterbukaan ekonomi (diukur dengan keterbukaan perdagangan yaitu ekspor-impor), secara signifikan mengurangi korupsi di negara-negara ASEAN berpendapatan menengah. Peningkatan keterbukaan ekonomi dan kesejahteraan masyarakat dapat mendorong negara-negara ASEAN berpendapatan menengah untuk bergerak menuju tata kelola pemerintahan yang bersih dan bebas dari korupsi.
Co-Authors atika Atika Nur Hidayah Catur Pramono Faishal, M. Noor Hadi Sasana Isnaini, Avivah Mulyaningsih, Nani - Nur Sarviah, Sudati Putra, Exnacius