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Arman Harahap
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International Journal Of Science, Technology & Management (IJSTM)
Published by CV. Inara
ISSN : -     EISSN : 27224015     DOI : doi.org/10.46729
Core Subject : Science, Education, Agriculture, Engineering,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation
International Journal of Science, Technology & Management (IJSTM) is an international scholarly refereed research journal which aims to promote the theory and practice of science, technology, innovation, engineering and management.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 1,077 Documents
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Design And Construction Of Automatic Transfer Switch (ATS) System With Backup Control System In Hybrid Power Plant (PLN - PLTS - GENSET) Gavrila Mailuhu, Jevon; A.F. Haurissa, Marceau; Jamlaay, Marselin
International Journal of Science, Technology & Management Vol. 6 No. 3 (2025): May 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i3.1316

Abstract

PLN's electricity supply is not always continuous in the process of distributing power, because under certain conditions there will be blackouts caused by interruptions or maintenance in the distribution system. An alternative to overcome PLN disturbances is to use renewable sources such as solar power plants and generators with an ATS automatic control system controlled using PLC. This study conducted a literature study to collect relevant theories and references about this research. PLC diagram leaders are designed for the process of transferring PLN, PLTS and Generator to load electrical power. Solar power plants operate during disruptions to PLN resources during operational hours (10 a.m. – 3 p.m.) and generators operate when solar power resources cannot supply to the load and at night outside solar power plant operating hours. The ATS system is able to switch the process of switching PLN and PLTS power sources very quickly without any time lag so that the load is directly supplied by PLN and PLTS power sources. The process of switching the generator source takes approximately 2 seconds for the starting process. The process of transferring battery power resources to critical loads without any time lag during the generator starting process and when generator starting failure occurs.
Performance Analysis of HC-SR04 and JSN-SRT04T Sensors for Optimization of Microcontroller-based Septic Tank Volume Monitoring Tools Khakim, Lukmanul; Budihartono, Eko
International Journal of Science, Technology & Management Vol. 6 No. 3 (2025): May 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i3.1317

Abstract

A septic tank is a temporary storage place for household waste, in which there are several gases that if the concentration increases, it will cause several impacts on the health and safety of people or the community around the septic tank. Previous research related to monitoring and neutralizing gas sewers in septic tanks has been successfully made, but the tool has shortcomings in terms of the use of the HC-SR04 sensor, where if the sensor is in humid conditions for a long time, then its performance cannot be optimal, due to the influence of humid space, therefore it is necessary to optimize the tool in terms of detecting the level of fulfillment of septic tank volume. As a result of optimizing the septic tank volume detection sensor which was replaced with the JSN-SR04T sensor, the volume detection results are more accurate and more stable, this is because the JSN sensor is waterproof, so that intervention from a humid environment is minimized. Testing from the two sensors found that the accuracy level of HC-SR04 in measuring distances between 20 to 200 cm, with 12 tests, the accuracy level of JSN-SR04T was 100%, and HC-SR04 was 90.1%.
Sustainability Reporting and Firm Perfomance Based On Maqashid Sharia Perspective Meydinda Usman, Reza; Restuningdiah, Nurika; Juliardi, Dodik
International Journal of Science, Technology & Management Vol. 6 No. 3 (2025): May 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i3.1318

Abstract

This study aims to determine the effect of disclosure of sustainability reporting on company performance based on maqashid sharia perspective in sharia stock indexed companies in Indonesia. The study obtained a sample of 52 companies in the mining, property & real estate, energy, and basic industry & chemicals sectors listed in the Indonesian Sharia Stock Index (ISSI) during 2022-2023, resulting in 104 observations through purposive sampling. The data analysis technique was conducted using documentation methods, specifically by collecting annual report data and sustainability reports from the sample companies. The analysis was performed using multiple regression with E-Views 13 software. Based on the research results, the Sustainability Reporting does not have a statistically significant effect on the Maqashid Syariah Index. This research indicates that companies listed in the Indonesian Sharia Stock Index, although they have demonstrated concern for environmental issues and social interests through sustainability reporting, have not yet fully integrated the principles of Maqashid Sharia into their operational practices in an optimal manner.
The Influence Of Motivation And Competency On Competitive Advantage In The Project Solution Portofolio At Telkom Property Regional 6 Kalimantan Sulthoni, Nurrokhmat; Djunita Pasaribu, Rina
International Journal of Science, Technology & Management Vol. 6 No. 4 (2025): July 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i4.1235

Abstract

The Project Solution portfolio remains a key driver in increasing revenue and profitability within the company. As evidenced by the four existing portfolios, Project Solution contributes an average of over 30% of annual revenue, particularly in Region 6 Kalimantan. Furthermore, the ongoing and upcoming IKN (National Capital City) project presents a significant opportunity to increase revenue within this portfolio. With the company's competitive advantages, revenue contributions should be maximized or even increase compared to previous years. Are there any obstacles or problems encountered by personnel involved in this project that have resulted in suboptimal contributions, or even decreased, compared to previous years? This is one of the reasons we focus on researching project-related human resources.The aim of the research is to determine the motivation of each individual involved in a project, to determine the competency of each individual involved in a project and to determine the influence of motivation and competency on competitive advantage in the Project Solution portfolio. The approach used in this research is quantitative. A quantitative approach is used to research a specific population or sample, collecting data using research instruments, and analyzing the data using quantitative/statistical methods. The research results show that motivation does not significantly influence competitive advantage, competence significantly influences competitive advantage, while simultaneously motivation and competence can explain the competitive advantage construct by 67.2% using a moderate model. The remaining variability not explained by the construct could be caused by other factors outside the model. From the results of this study, competence has a significant influence on competitive advantage rather than employee motivation, so the initial focus is to maintain employee competence so that it remains in the very competent category or even improved and retain employees who have good competence to continue working in the company.
The Influence of Perceived Organizational Support and Work Life Balance on Work Engagement (Case Study at PL PLN (Persero) UPT Karawang) Rosdianto, Fajar; Dudija, Nidya
International Journal of Science, Technology & Management Vol. 6 No. 4 (2025): July 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i4.1238

Abstract

PLN UPT Karawang is responsible for managing electricity transmission assets across the regions of Karawang, Bekasi, Purwakarta, and Subang, with a total capacity of 6,530 MVA from 60 transformer units, serving 17 high-voltage consumers. By the end of 2024, this unit had fulfilled only 95.14% of its workforce requirements, which may lead to excessive workloads, reduced work-life balance, and increased risks of fatigue and declining employee well-being. Furthermore, a drop in the work engagement index from 89.74% in 2022 to 88.89% in 2023, along with suboptimal achievements in the Work Condition and Recognition dimensions, reflects potential weaknesses in organizational support and recognition for employees. This decline indicates a weakening in leadership quality, supervision, and organizational culture, which can negatively affect employee motivation, job satisfaction, and loyalty. Additionally, a reduced sense of meaningfulness in work and worsening working conditions may lower productivity and increase stress levels.This study aims to analyze the influence of direct supervisor support and work-life balance on employee work engagement at PLN UPT Karawang. Data were collected through a questionnaire using a 1–5 scale and analyzed using the Partial Least Squares method within the Structural Equation Modeling framework. The results indicate that both organizational support and work-life balance have a significant influence, both partially and simultaneously, on work engagement. The coefficient of determination value of 0.406 suggests that 40.6% of work engagement is explained by these two variables, while the remaining 59.4% is influenced by other factors. This study is limited by the scope of respondents and variables, so future research is recommended to broaden the population and include other variables such as leadership, organizational culture, and psychological well-being to gain a deeper understanding.
The Influence Of Employee Engagement On Employee Performance And Company Performance At Pt. Bank Negara Indonesia (Persero) Tbk. Putra Pertama, Jibril; Indiyati, Dian
International Journal of Science, Technology & Management Vol. 6 No. 4 (2025): July 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i4.1239

Abstract

The purpose of this study is to examine employee engagement, employee performance, and financial performance at BNI, as well as to determine the influence of employee engagement on employee performance and financial performance, both partially and simultaneously. This is a quantitative study with verification approach. The research instrument used is a questionnaire employing a Likert scale. The collected data were analyzed using Partial Least Squares (PLS) to test the relationships between latent variables. The PLS method was chosen due to its ability to analyze data with a moderate sample size and without requiring the assumption of data normality. Based on a literature review and preliminary survey results, this study proposes three hypotheses: first, there is a relationship between the level of employee engagement and employee performance at BNI; second, employee performance influences company performance; and third, employee engagement affects company performance.
The Effect Of Placement, Workload And Competence On Employee Performance At Pt. Pln (Persero) Up3 Pematangsiantar Afdol, Riyadi; Wahyuningtyas, Ratri
International Journal of Science, Technology & Management Vol. 6 No. 4 (2025): July 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i4.1240

Abstract

This study aims to analyze the placement, workload and competency and performance of employees at PT. PLN (Persero) UP3 Pematangsiantar and analyzed the influence of placement, workload and competence on employee performance at PT. PLN (Persero) UP3 Pematangsiantar. This research is a quantitative research with a descriptive approach with the research population is all employees at PT. PLN (Persero) UP3 Pematangsiantar as many as 141 people. Descriptive data analysis using Structural Equation Modeling - Partial Least Square (SEM-PLS). The findings of the study show that a) There is a positive and significant influence of placement variables on performance that has a significant effect on performance. b) There is a negative and significant influence of workload variables on performance. c) There is a positive and significant influence of competency variables on performance.
The Effect Of Training And Competence On Employee Performance At Xyz Health Foundation Irfan Fitriansyah, Moh.; Indiyati, Dian
International Journal of Science, Technology & Management Vol. 6 No. 4 (2025): July 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i4.1241

Abstract

Background: This study aims to find out an overview of employee training, competencies, and performance at the XYZ Health Foundation. In addition, this study aims to determine the influence of each variable that can affect Employee Performance at the XYZ Health Foundation, namely training and competence. Research sample The sample to be taken in this study includes male and female employees at the XYZ Health Foundation with a total of 106 employees using purposive sampling techniques. Method: The analysis method used is a quantitative method with descriptive and verifiable/causative analysis. The instrument test was carried out with a validity test consisting of convergent validity and discriminant validity. In addition, a reliability test was carried out using a composite reliability approach. Data analysis was carried out using the Partial Least Square – Structural Equation Modeling (PLS-SEM) approach which will be processed with the help of Smart PLS 4.0 software. Results and Conclusions:The results of the study show that training has a positive influence on employee performance and competence also has a significant effect on employee performance. Training and competency simultaneously have a significant effect on employee performance at the XYZ Health Foundation. Effective training is able to support competency development, which ultimately contributes to improving overall employee performance.
Factors That Influence Public Intention To Install Home Charging : The Perspective Of Public Who See And Know About The Electrifyinglifestyle Campaign Electric Vehicle Through Social Media Febriana, Danny; Taufik Hidayah, Riski
International Journal of Science, Technology & Management Vol. 6 No. 4 (2025): July 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i4.1242

Abstract

Electricity is a fundamental necessity in modern life, and the transition toward the use of environmentally friendly energy has become a global priority to achieve Net Zero Emissions (NZE). The Indonesian government has targeted NZE by 2060, with PLN as the primary actor in supporting energy transition programs such as Electrifying Lifestyle and the development of electric vehicle infrastructure. One significant finding from the Electrifying Lifestyle campaign related to electric vehicles is the remarkable surge in home charging adoption, which recorded a 335% increase in the first semester of 2024 compared to the same period in the previous year. This study aims to analyze the factors influencing public intention to install home charging, particularly through the perspective of the Electrifying Lifestyle campaign on social media. Using the Theory of Planned Behavior, this research explores the influence of variables such as product knowledge, environmental concern, ecological lifestyle, perceived benefits, innovation, and optimism on consumer attitudes, as well as the role of digital campaign effectiveness on brand awareness and purchase intention. The research findings show that respondents' answers for each variable—including consumer attitude, social media marketing, brand awareness, and purchase intention—fall into the good category. Consumer attitude is significantly influenced by product knowledge, environmental concern, ecological lifestyle, perceived benefits, technological innovativeness, and technological optimism. Consumer attitude also has a significant positive effect on purchase intention but is negatively moderated by perceived consumer effectiveness. Additionally, social media marketing has a significant positive effect on both brand awareness and purchase intention, and brand awareness also significantly influences purchase intention. These findings emphasize the importance of digital marketing strategies and strengthening the perceived benefits of technology in promoting the adoption of home charging to support increased environmentally friendly electricity consumption and accelerate the achievement of NZE targets in Indonesia.
The Influence Of Work Environment And Rewards On Turnover Intention With Job Satisfaction As An Intervening Variable At PT. LEN Industri (Persero) Devinda Iswari, Zara; Ratna Komala Putri, Dr.
International Journal of Science, Technology & Management Vol. 6 No. 4 (2025): July 2025
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v6i4.1243

Abstract

Effective human resource management is crucial to achieving organizational success, especially in the face of escalating competition. With the intervening variable, job satisfaction, this study aims to explore how the work environment and pay affect employees' inclinations to leave. A quantitative approach was used, taking turnover intention as the dependent variable and job satisfaction as the mediating factor, and work environment and rewards as the independent factors. PT LEN Industri's permanent employees (PKWTT) made up the study population, and 184 of them were selected through non-probability purposive sampling. The validity and reliability of the research instruments were assessed using SmartPLS 4.0, and the data were descriptively analyzed using a continuum line and validated using structural equation modeling (SEM). The results show that incentives and the work environment both greatly increase job satisfaction, which is crucial for reducing the desire to leave.

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