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All Journal Jurnal Ilmiah Mahasiswa Ekonomi Manajemen IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Nelson Silitonga
Unknown Affiliation
Automotive Engineering Economics, Econometrics & Finance Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISIS PENGARUH EFEKTIVITAS KEPEMIMPINAN TRANSFORMASIONAL DAN KESIAPAN UNTUK BERUBAH TERHADAP KINERJA KARYAWAN WANITA DI MASA PANDEMI COVID-19 Teguh Yuwono; Nuri Wiyono; Masduki Asbari; Dewiana Novitasari; Nelson Silitonga
Jurnal Ilmiah Mahasiswa Ekonomi Manajemen Vol 5, No 3 (2020): Agustus
Publisher : Departemen Manajemen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jimen.v5i3.15502

Abstract

This study aimed to measure the effect of transformational leadership on employee performance of the woman employee of a shoe industry in Tangerang which are mediated by readiness for change. Data collection was done by simple random sampling technique and the returned and valid questionnaire results were 201 samples. Data processing was used SEM method with SmartPLS 3.0 software. The results of this study concluded that transformational leadership have not significant effect on the employee performance, but transformational leadership have a positive and significant effect on readiness for change. This study conclude also that readiness for change have a positive and significant effect on relationship between transformational leadership and employee performance. Readiness for change as fully mediator. This new research proposed a model for building employee performance among the woman employee of a shoe industry in Tangerang through enhancing transformational leadership practice with readiness for change as a mediator. This research could pave the way to improve employee readiness in facing the era of industrial revolution 4.0.
Pengaruh Penurunan Kecepatan Elektromotor Untuk Menggerakkan Bowl Separator Terhadap Kinerja Separator Di Pabrik Tapioka PT Hutahaean A. Sumadi Silitonga; Nelson Silitonga
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 1 (2023): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i1.45

Abstract

A separator is a mechanical unit that functions to separate cassava starch from water. One tool that plays an important role in the continuity of the separation process in the separator is the electromotor. The electromotor functions as a drive in the separator. The type of electromotor used is usually an induction motor, this is because induction motors have several advantages over other types of motors, including having relatively high efficiency, simple and robust construction, and easy and inexpensive to maintain. One of the disadvantages of an induction motor is that it regulates the rotational speed of the motor. The rotation speed of an induction motor can be adjusted by changing the frequency using an inverter. This study aims to determine the effect of frequency changes on the rotational speed of a 3-phase induction motor using an inverter. The tests were carried out at a frequency of 25 Hz, 30 Hz, 35 Hz, 40 Hz, 45 Hz, and 50 Hz. From the research, it can be concluded that the lowest frequency of the induction motor to drive the bowl separator is 25 Hz, and the current will increase if the frequency is lowered.
Co-Authors A. Sumadi Silitonga Dewiana Novitasari Masduki Asbari Nuri Wiyono Teguh Yuwono