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All Journal Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) International Conference on Health Science, Green Economics, Educational Review and Technology (IHERT) International Journal of Management, Economic and Accounting
M. Isa Indrawan
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Religion Arts Humanities Computer Science & IT Economics, Econometrics & Finance Education Health Professions Social Sciences

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Analyzed New Design Data Driven Modelling of Piezoelectric Power Generating System Solly Aryza; Zulkarnain Lubis; M. Isa Indrawan; Syahril Efendi; Poltak Sihombing
Budapest International Research and Critics Institute (BIRCI-Journal): Humanities and Social Sciences Vol 4, No 3 (2021): Budapest International Research and Critics Institute August
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v4i3.2350

Abstract

The piezoelectric speed bumps designed in this study consist of a speed bump mechanical system that functions to receive input from motorized vehicle pressure, piezoelectric cantilever system as a component producing electrical energy and energy harvesting system as energy harvester from piezoelectric material. One system module consists of a piezoelectric parallel circuit connected to the MB39C811 buck converter. In this paper, we will discuss the mechanism for analyzing the design and modeling of a piezoelectric power plant system on a bluff body-based speed bump with a cantilever system for variations in motor vehicle speed by means of physical modeling. In the piezoelectric speed bump in the form of a bluff body, it can be seen that the air flow when passing through the triangular cross section has an increase in speed so that the resulting vortex has a high speed. This is what causes high vibrations in the piezoelectric so that the maximum voltage and the average voltage are the highest. Piezoelectric speed bumps are capable of generating electrical power with an input of 60 times the motorized vehicle track of 2.166mWh with an efficiency of 2.87% compared to manual input.
THE IMPLEMENTATION OF THE OCCUPATIONAL HEALTH AND SAFETY MANAGEMENT SYSTEM AND THE MATURITY LEVEL OF OCCUPATIONAL HEALTH, SAFETY, AND ENVIRONMENT ON PERFORMANCE ACHIEVEMENTS WITH CULTURE TRANSFORMATION AS AN INTERVENING VARIABLE AT PT. PLN (PERSERO) UP Edy Saputra; Kiki Farida Ferine; M. Isa Indrawan
International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Vol. 5 No. 4 (2025): August
Publisher : CV. Radja Publika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijebas.v5i4.3933

Abstract

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IMPROVING PERFORMANCE THROUGH CULTURAL TRANSFORMATION Edy Saputra; Kiki Farida Ferine; M. Isa Indrawan
International Conference on Health Science, Green Economics, Educational Review and Technology Vol. 7 No. 1 (2025): 9th IHERT (2025): IHERT (2025) FIRST ISSUE: International Conference on Health
Publisher : Universitas Efarina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ihert.v7i1.491

Abstract

This study aims to analyze the effect of Implementation of Occupational Health and Safety Management System (OHSMS) and Maturity Level of Occupational Health, Safety, and Environment (K3L) on Performance Achievement, with Cultural Transformation as an intervening variable at PT. PLN (Persero) UP3 North Medan. The study involved 130 respondents selected using purposive sampling. Data analysis was conducted using Partial Least Square Structural Equation Modeling (PLS-SEM) to test the validity, reliability, and relationships among the research variables. The results indicate that both OHSMS implementation and K3L Maturity Level have a positive and significant effect on Performance Achievement, both directly and indirectly through Cultural Transformation as a mediator. Furthermore, Cultural Transformation significantly mediates the relationship between OHSMS implementation and K3L Maturity Level on Performance Achievement, thus enhancing the effectiveness of the OHSMS and K3L systems in improving organizational performance. This study provides practical implications for the management of PT. PLN (Persero) UP3 Medan Utara to continue improving OHSMS implementation, developing K3L Maturity Level, and strengthening Cultural Transformation as a strategy to enhance employee performance. The study also contributes theoretically by reinforcing empirical evidence of Cultural Transformation's mediating role in the context of occupational health and safety.
Analysis Of Work Motivation And Work Stress On Employee Performance With Work Environment As A Variable Intervening At PT Hki Road Construction Pekanbaru-padang Toll Road, Section Siring Field Satria Wibawa Wahyadyatmika; Kiki Farida Ferine; M. Isa Indrawan
International Journal of Management, Economic and Accounting Vol. 1 No. 2 (2023): December 2023
Publisher : Yayasan Multidimensi Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/ijmea.v1i2.59

Abstract

This study was conducted to test and analyze the effect of work motivation and work stress on employee performance through the work environment as an intervening variable. The location of the research was conducted at PT Hutama Karya Infrastructure for the Construction of the Pekanbaru-Padang Toll Road, Padang Siring Section. The number until this study was 82 respondents who were contract employees. The analysis method used is PLS analysis. The results of the direct influence test showed a positive and significant influence between work motivation on employee performance. There is a positive and significant influence between work motivation and the work environment. There is a positive and significant influence between work stress and employee performance. There is a positive and significant influence between work stress and the work environment. There is a positive but not significant influence between the work environment on employee performance. The results of the indirect influence test showed a positive but not significant influence between work motivation on employee performance through the work environment. There is a positive but not significant influence between work stress on employee performance through the work environment.
The Effect Of Work Stress And Work Discipline On Employee Performance With Work Motivation As An Intervening Variable At Pt Hki Jakarta Yusuf Kibar; Kiki Farida Ferine; M. Isa Indrawan
International Journal of Management, Economic and Accounting Vol. 1 No. 2 (2023): December 2023
Publisher : Yayasan Multidimensi Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/ijmea.v1i2.61

Abstract

This study aims to determine the effect of Work Stress and Work Discipline on Employee Performance with Work Motivation as an Intervening Variable at PT HKI Jakarta. This research is an explanatory research with a quantitative approach, and the methods used in this study are observation, questionnaires, interviews, and literature studies. The population in this study is a homogeneous limited population, namely PT HKI Jakarta employees as many as 68 permanent employees. The technique used in sampling using saturated sampling, so that the number of samples is 68 respondents. The data analysis technique is SEM (Structural Equation Modeling) using the Smartpls program.4. The results showed that work discipline did not have a significant influence on employee performance variables. Work discipline has a significant influence on work motivation variables. Work motivation has a significant influence on employee performance variables. Work stress has a significant influence on employee performance variables. Work stress has a significant influence on work motivation variables. Work discipline indirectly through work motivation as an intervening variable has a significant effect on the performance of PT HKI Jakarta employees. Work stress indirectly through work motivation as an intervening variable has a significant effect on the performance of PT HKI Jakarta employees.
The Effect Of Compensation, Cooperation, Work Discipline On Employee Performance With Organizational Commitment As An Intervening Variable In PT Hki Binjai-Brandan Zone IV Raden Annas Dio Rahman Kusumo; Kiki Faride Ferine; M. Isa Indrawan
International Journal of Management, Economic and Accounting Vol. 1 No. 2 (2023): December 2023
Publisher : Yayasan Multidimensi Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/ijmea.v1i2.63

Abstract

The purpose of this study is to identify the effect of Compensation, Cooperation, Work Discipline on Employee Work Performance with Organizational Commitment as an Intervening Variable at PT Hutama Karya Infrastruktur Binjai-Brandan Zone IV. The approach to this study uses quantitative methods. The population in this study is all employees contained in PT HKI Binjai-Brandan Zone IV as many as 147 respondents. The sampling technique used by the author is purposive sampling with criteria so that the sample number is 70 respondents. The type of data used in this study is primary data using questionnaires or interviews. The analysis technique used is Structural Equation Modeling (SEM) using SmartPLS software. The results showed that adequate compensation can have a positive and significant impact on employee work performance. Cooperation in the workplace has a positive and significant impact on job performance. High discipline has a positive and significant influence on employee work performance. Compensation has a positive and significant relationship to organizational commitment. Compensation has a positive and significant effect on organizational commitment. Cooperation does not have a positive and significant effect on organizational commitment. High discipline can have a positive and significant impact on employees' organizational commitment. Compensation can have a positive and significant impact on employee performance through organizational commitment mechanisms. Cooperation does not have a positive and significant effect on employee performance through organizational commitment. Discipline has a positive and significant effect on employee performance through organizational commitment.
The Influence Of Communication, Leadership Style And Organizational Culture On Job Satisfaction With Work Motivation As Intervening Variables At PT Hki Binjai Project Brandan Zone 2 Rezza Ardiansyah; M. Isa Indrawan; Mesra B.
International Journal of Management, Economic and Accounting Vol. 1 No. 2 (2023): December 2023
Publisher : Yayasan Multidimensi Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/ijmea.v1i2.64

Abstract

The purpose of this study is to see the influence of communication, leadership style and organizational culture on job satisfaction with work motivation as an intervening variable in PT Hutama Karya Infrastruktur Project Binjai Brandan Zone 2. This research uses a quantitative approach, with statistical methods of path analysis. The population in this study is all contract and permanent employees of PT Hutama Karya Infrastruktur Project Binjai Brandan Zone 2 totaling 86 people. The sampling technique uses saturated samples so that the number of samples is 86 respondents. Partial Least Square (PLS) data analysis technique with Structural Equation Modeling (SEM) equation model. The results showed organizational culture, leadership style, communication, and motivation had no effect on job satisfaction. Leadership style variables have no effect on motivation, while organizational culture and communication affect work motivation. The results of the indirect influence test show that leadership style and organizational culture affect job satisfaction through work motivation as an intervening variable, and communication has no effect on job satisfaction through work motivation as an intervening variable.
Co-Authors Edy Saputra Efendi, Syahril Kiki Farida Ferine Kiki Faride Ferine Mesra B. Poltak Sihombing Raden Annas Dio Rahman Kusumo Rezza Ardiansyah Satria Wibawa Wahyadyatmika Yusuf Kibar