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All Journal Program Kreativitas Mahasiswa - Penelitian Golden Ratio of Human Resource Management
Sarah Yarden Palinggi
Teknik Kimia, Teknik, Universitas Katolik Widya Mandala Surabaya
Social Sciences

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KONVERSI LUMPUR AKTIF MENJADI BIODIESEL DENGAN PROSES SUBKRITIS TANPA KATALIS SECARA INSITU Gunawan, Farrel; Gunawan, Iwan; Palinggi, Sarah Yarden; Ayucitra, Aning; Ismadji, Suryadi
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384.736 KB)

Abstract

Nowadays, biodiesel has been produced commercially for partial supporting energy demmand in Indonesia. However, high price feedstock and need of catalyst appear as the problem. In this research, activated sludge which is available as large scale waste and comprises significant ammount of lipid fraction (direct adsorption of industrial waste water and microbial lipid), was converted into biodiesel using subcritical process (without catalyst). The potential of the feedstock and process in producing biodiesel were studied. The optimum condition of the production is 215oC, 65 bar, and 5:1 of methanol to lipid mass ratio and the biodiesel meets the SNI-04-7182-2006 spesification. Keywords: biodiesel, green process, activated sludge
Analysis of That Influence Employee Performance: Work Environment, Leadership, and Mental Health: Literature Review from Human Resource Management Perspectives Palinggi, Sarah Yarden; Agustina, Tri Siwi
Golden Ratio of Human Resource Management Vol. 5 No. 1 (2025): August - February
Publisher : Manunggal Halim Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52970/grhrm.v5i1.803

Abstract

Human resources are essential in a corporation because they reinforce other operational resources. This role can determine the progress or decline of a corporation. This research analyzes the influence of work environment, leadership, and mental health on employee performance. Using quantitative explanatory methodology, the study utilized Structural Equation Modeling with Partial Least Squares (SEM-PLS), which was used in this work via SmartPLS software. A structured survey was used to gather information from 105 workers. The findings reveal a positive relationship between work environment, leadership, and mental health on employee performance.
Co-Authors Aning Ayucitra Farrel Gunawan Iwan Gunawan Suryadi Ismadji Tri Siwi Agustina