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All Journal Jurnal Rekayasa Mesin JURNAL POLI-TEKNOLOGI Jurnal Manajemen, Bisnis dan Organisasi (JUMBO) International Journal of Economic Research and Financial Accounting
Hadi Wahyudi
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Religion Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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PENGARUH KARAKTERISTIK INDIVIDU DAN PENGEMBANGAN KARIR TERHADAP KINERJA PEGAWAI Hadi Wahyudi; Murdjani Kamaluddin; Sinarwati Sinarwati
Jurnal Manajemen, Bisnis dan Organisasi (JUMBO) Vol 1, No 2 (2017): Jurnal Jumbo Vol 1 No 2
Publisher : Pascasarjana Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (335.101 KB) | DOI: 10.33772/jumbo.v1i2.8072

Abstract

The purpose of this study were (1) To determine the effect of individual characteristics and career development on the performance of staff  at the Board  of Social Empowerment and Rural Government of Southeast Sulawesi. (2) To determine the effect of individual characteristics on the performance of  staff   at the Board  of Social Empowerment and Rural Government of Southeast Sulawesi. (3) To determine the effect of career development on the performance  of  staff   at the Board  of Social Empowerment and Rural Government of Southeast Sulawesi.Methods of  data analysis  used  were descriptive statistics and multiple linear regression analysis. Samples  used  in the study  were  99 respondents,  which were staff   at the Board  of Social Empowerment and Rural Government of Southeast Sulawesi.The results of  the study showed  that (1) There was a positive, significant effect  of individual characteristics (X1) and career development (X2) on the performance  of  staff   at the Board  of Social Empowerment and Rural Government of Southeast Sulawesi . (2) The individual characteristics (X1) had a positive,  significant effect  on the performance  of  staff   at the Board  of Social Empowerment and Rural Government of Southeast Sulawesi. (3) Career Development (X2)  had a positive,  significant effect  on the performance  of  staff   at the Board  of Social Empowerment and Rural Government of Southeast Sulawesi.Keywords: individual characteristics, career development, staff  performance   
Comparison Of Production Cost Of House Between Making It Yourself Or Buying From Subcontracting At Pt. Benhard Bagus Bersama In Makassar Hadi Wahyudi; Muh. Rum; Faidul Adzim
International Journal of Economic Research and Financial Accounting Vol 2 No 4 (2024): IJERFA JULY 2024
Publisher : CV. AFDIFAL MAJU BERKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55227/ijerfa.v2i4.192

Abstract

Building a house is one of the most important decisions in a person's life. This decision is often accompanied by careful financial considerations. This thesis aims to compare the Cost of Goods Sold of building a house yourself or buying from a subcontractor at PT. Benhard Bagus Bersama in Makassar.The research method used is a descriptive quantitative approach to management accounting. Data was collected through interviews, observations, and documentation.The results of the study show that the COGS of a self-built house is cheaper than the COGS of buying from a subcontractor. The difference in COGS between the two schemes is Rp 25,915,256 or 25.9%. The factors that cause this difference in COGS are cost efficiency, reduction of subcontractor's profit, and the risk borne by the buyer. The conclusion of this study is that the self-build scheme is more cost-effective than the subcontractor purchase scheme. However, the self-build scheme takes longer, requires expertise and experience, and has a higher risk. Therefore, potential buyers are advised to carefully consider these factors before choosing the scheme that best suits their needs and abilities.
ENERGY AND ECONOMIC ANALYSIS OF BIOGAS POWER PLANT FROM MUNICIPAL SOLID WASTE IN INDONESIA Aditia Aulia; Hadi Wahyudi; Edy Susanto
Jurnal Poli-Teknologi Vol. 20 No. 3 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i3.3982

Abstract

Indonesia is the fourth most populous country with a population of more than 270 million people and is expected to continue to increase. The increasing population has an effect on increasing municipal solid waste (MSW) generation and energy demand. Waste-to-energy (WTE) can be a solution to these two problems. This article will discuss two types of waste-to-energy technology, namely anaerobic digestion and landfill gas recovery. The study began by conducting kinetic modeling on the two technologies to determine the potential of biogas energy produced from municipal waste in Indonesia, the case study applied was Yogyakarta. Then a feasibility study was carried out to find out whether these two technologies are possible to be applied in Indonesia in terms of various aspects such as initial capital costs, operating and maintenance costs, and waste processing service costs. At the end of the study, it was found that biogas power plant with both technology bases was economically feasible. Landfill gas recovery is more attractive because it has a smaller capital and a higher IRR of 22%. The scenario using anaerobic digestion requires a larger capital than the previous scenario and has a lower IRR value of 14%. Keywords: Biogas, Municipal Solid Waste (MSW), Kinetic modeling, Waste-to-energy (WTE), Feasibility study.
Fracture and Failure Analysis of Wheel Bolt on Main Landing Gear CN235 220M Aircraft Dewa, Rando Tungga; Daffa Mandala Adinata; Ida Farida; Sovyan Aritonang; Hadi Wahyudi
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2025): Volume 20, Nomor 1, April 2025
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v20i1.6291

Abstract

The wheel bolt of the CN235 220M aircraft is a type of fastener crucial for maintaining air pressure within the tire. It was discovered that this component fractured during operation. This study aims to conduct forensic analysis on the mechanism and causes of material failure through micro and macro morphological observations, chemical composition tests, microstructural analysis, and hardness testing on the fractured bolt. Micro-morphology results showed a crack tip in the initiation zone, which became a stress concentration point. Additionally, striations caused by cyclic loading were observed. EDS analysis revealed a high oxygen content in the initiation zone, indicating a corrosion-assisted crack. As cyclic loading continued, it gradually eroded the bolt's cross-sectional area until the material's fatigue led to final fracture.
Co-Authors Aditia Aulia Daffa Mandala Adinata Edy Susanto Faidul Adzim Ida Farida Muh. Rum Murdjani Kamaluddin Rando Tungga Dewa Sinarwati Sinarwati Sovyan Aritonang