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Sarip Hidayatulloh
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Humanities Automotive Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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PENGARUH PASIR CETAK DENGAN TAMBAHAN SERBUK BATU, SERBUK KAYU DAN AIR GULA TERHADAP CACAT POROSITAS DAN KEKASARAN PERMUKAAN HASIL PENGECORAN LOGAM PADUAN AL-SI Sarip Hidayatulloh
Jurnal Teknik Mesin Vol 12, No 01 (2019): Jurnal Teknik Mesin
Publisher : UNIVERSITAS ISLAM MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (168.614 KB)

Abstract

As time goes on, the human need for metals increases. Thus encouraging small and large industrial entrepreneurs to compete to meet the needs of their consumers. casting is the process of melting metal in the smelter's kitchen, then pouring it into the mold and allowing it to freeze until it can be removed from the mold. one of the factors that can affect the quality of the results of the castings is sand mold, including the composition of the sand mold and the design of the channel system (gatting system). In this study, the aim was to analyze the variation of sand composition with addition of stone powder, wood powder, and sugar water to the porosity and roughness of metal surfaces as a result of casting Al-Si alloy metal. The material used in this study is used piston and composition of cement 5%, 6% sugar water and 4% wood powder, Banyuwangi sand composition of 60%, 55% and 50%, rock powder composition of 25%, 30% and 35% . From the results of this study, the value of porosity test results obtained from castings with the smallest value lies in the composition of sand with 50% stone powder with 35% the value of 0.26%, while the roughness test results obtained from the castings found the smallest value in the composition of sand with powder 60% stone with 25% at 1.17 μm.
The Influence of Leadership and Work Motivation on the Performance of Employees at Selabintana Chicken Farm Garut Sarip Hidayatulloh; Andri Muhammad Nuroni; Asep Saepuloh; Abdul Fatah Hassanudin
Outline Journal of Community Development Vol. 2 No. 2: November 2024
Publisher : Outline Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61730/37e77n41

Abstract

Using the associative descriptive method, this is done to convey how the results of the research are conducted. The population in this review is 65 employees. The sample is part of the totality and characteristics of the population. The research analysis conducted by the author uses the multiple linear regression method, which is in accordance with the phenomenon of the research problem. Multiple linear regression is also an analysis used to determine the cause and effect of the variables studied. Overall leadership gets a Good assessment criterion, this criterion is indicated by the highest criterion, namely Leadership as a Motivator because leaders always provide a form of attention to their employees by providing complete direction and explanation in the work so that employees feel optimistic while working so that it causes employee performance to increase. Overall Work Motivation gets a Good criterion, this criterion is indicated by the highest criterion, namely the Need for Power because leaders provide a form of concern and attention given by the company in the form of promotion and determination of permanent employees has succeeded in making employee enthusiasm continue to increase while working so that it causes employee work motivation to increase. Overall Employee Performance gets Good criteria, this criteria is indicated by the highest criteria, namely Initiative because employees can solve their problems when working by using creative ideas and innovation in working so that effective and efficient working methods are obtained which have an impact on good product quality that can be produced through this working method, then overall employee performance gets good assessment criteria by being able to provide motivation from employees so that company goals are achieved.
Co-Authors Abdul Fatah Hassanudin Andri Muhammad Nuroni Asep Saepuloh