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Bulletin of Engineering Science, Technology and Industry
Published by PT. RADJA INTERCONTINENTAL PUBLISHING
ISSN : -     EISSN : 30255821     DOI : https://doi.org/10.59733/besti
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering
Bulletin of Engineering Science, Technology and Industry | ISSN: 3025-5821 is a peer-reviewed journal that publishes popular articles in the fields of Engineering, Technology and Industrial Science. This journal is published 4 times a year, namely in March, June, September and December. We invite scientists, practitioners, researchers, lecturers and students from various countries and institutions to contribute to publishing their work and research results in the fields of Engineering, Technology and Industry.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol. 4 No. 1 (2026): March" : 5 Documents clear
IMPLEMENTATION OF ROAD AND DRAINAGE INFRASTRUCTURE DEVELOPMENT BY THE PUBLIC WORKS DEPARTMENT OF SIMALUNGUN REGENCY Feby Milanie; Ruri Prihatini Lubis; Mhd. Ali Damanik; Anton Sahala Tua Banjarnahor
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 1 (2026): March
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59733/besti.v4i1.163

Abstract

Road and drainage infrastructure development is an important component in supporting community mobility, economic growth, and environmental sustainability. Simalungun Regency as a region with extensive road network coverage still faces various problems, such as high levels of road damage and suboptimal drainage system function. This study aims to analyze the implementation of road and drainage infrastructure development carried out by the Simalungun Regency Public Works Department, by reviewing factors that influence the effectiveness of its implementation, the level of development integration, and the role of community participation based on the theory of Success Factors in Managing Wastewater Infrastructure through Community Participation . The research method used is a descriptive qualitative approach with data collection techniques through documentation studies, observations, and interviews. The results of the study indicate that the implementation of road and drainage infrastructure development has been carried out in accordance with regional planning, but its effectiveness has not been optimal. Budget limitations, human resource capacity, weak supervision, and low community participation are the main factors inhibiting the success of development. In addition, the integration between road development and the drainage system is still low, thus affecting the sustainability of infrastructure. Therefore, it is necessary to strengthen integrated development governance, increase community participation, and optimize supervision and funding so that road and drainage infrastructure development can be sustainable and provide long-term benefits for the people of Simalungun Regency.
THE EFFECT OF PRICE AND WORD OF MOUTH ON PURCHASING DECISIONS WITH BRAND IMAGE AS AN INTERVENING VARIABLE AT WARKOP AGAM STABAT Fairuza Rikha Amri; Endang Sulistya Rini; Beby Karina Fawzeea Sembiring
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 1 (2026): March
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59733/besti.v4i1.165

Abstract

This study investigates the effects of price and word of mouth (WOM) on purchasing decisions, with brand image acting as an intervening variable. Conducted at Warkop Agam Stabat, a local coffee shop in Stabat, Indonesia, the study uses a quantitative research method involving primary and secondary data collection from 216 respondents. The data analysis includes descriptive statistics and Structural Equation Modeling (SEM). The findings reveal that price negatively affects both purchasing decisions and brand image, while WOM positively influences brand image but does not directly affect purchasing decisions. However, brand image significantly influences purchasing decisions and mediates the relationships between price, WOM, and purchasing decisions. This study contributes to the understanding of consumer behavior in the context of small local businesses.
THE EFFECT OF INSTITUTIONAL IMAGE AND EDUCATIONAL COST ON STUDENTS' INTEREST IN STUDYING AT NAMIRA MADINA HEALTH COLLEGE WITH BRAND TRUST AS AN INTERVENING VARIABLE Lidya Kesuma Sari; Endang Sulistya Rini; Beby Karina Fawzeea Sembiring
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 1 (2026): March
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59733/besti.v4i1.174

Abstract

This study aims to determine the effect of institutional image and educational cost on student interest through brand trust. This is an associative study, and the data used are quantitative. The data were obtained from primary and secondary data. The analytical methods used were descriptive statistical analysis and structural equation modeling. The population and sample in this study consisted of 297 members of the Mandailing Natal Regency generation Z community. The sampling technique used was accidental sampling. The results of this study indicate that institutional image has a positive and significant effect on brand trust, institutional image has a positive and significant effect on student interest, educational cost has a negative but insignificant effect on student interest, educational cost has a negative and significant effect on brand trust, brand trust has a positive and significant effect on student interest, institutional image has a positive and significant effect on student interest through brand trust, and educational cost has a negative and significant effect on student interest through brand trust among the Gen Z community in Mandailing Natal Regency.
TECHNICAL PERFORMANCE AND EFFICIENCY ANALYSIS OF A 300 KG/H CORN SHELLING MACHINE USING EXPERIMENTAL METHOD Boangmanalu, Eka; Jandri Fan HT Saragi; Angga Bahri Pratama
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 1 (2026): March
Publisher : PT. Radja Intercontinental Publishing

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Abstract

This study evaluates the technical performance and efficiency of a corn shelling machine with a capacity of 300 kg/h using an experimental method under field conditions. The research aims to determine machine performance in terms of working capacity, shelling efficiency, unshelled kernels, and total losses. Data were collected through three repeated experimental trials involving measurement of input-output weight and processing time. The results show that the machine operates at a stable capacity of 300 kg/h, consistent with its design specification. The average shelling efficiency reached 94.1%, indicating high separation performance. Unshelled kernels were recorded at 3.3%, while total losses were 2.6%, indicating low material waste. The machine demonstrates effective performance suitable for small to medium-scale corn processing. However, improvements in feeding uniformity and moisture control are recommended to enhance overall efficiency.
OPTIMIZATION OF SIGNALIZED INTERSECTION PERFORMANCE USING THE IHCM 1997 APPROACH IN AN URBAN INDUSTRIAL AREA: A CASE STUDY OF THE DAM MUKA KUNING INTERSECTION, BATAM Fauzan
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 1 (2026): March
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Traffic congestion at signalized intersections in urban areas has become a critical issue as transportation activities increase due to economic growth and urbanization. The Dam Muka Kuning intersection in Batam City is one of the strategic intersections located within an industrial zone, characterized by high traffic volumes and significant vehicular movement complexity. This study aims to evaluate the performance of the signalized intersection based on capacity parameters and degree of saturation, as well as to formulate signal timing optimization strategies to improve the intersection's level of service. The method employed is a quantitative approach based on the 1997 Indonesian Highway Capacity Manual (IHCM), utilizing traffic volume data obtained from field surveys during peak hours. The analysis encompasses saturated flow, capacity, flow ratio, and degree of saturation for each intersection approach. The findings indicate that the intersection operates under oversaturated conditions, with degree of saturation (DS) values reaching 3.81 at the south approach, 2.55 at the west approach, and 1.88 at the east approach all of which substantially exceed the ideal threshold (DS ≤ 0.85). These conditions signify a significant deterioration in the level of service, marked by extensive queue lengths and high delays. The predominant factors contributing to congestion include high side friction, ingress and egress activities associated with the industrial zone, and signal timing configurations that have yet to adapt to traffic flow fluctuations. To enhance intersection performance, this study proposes a signal timing optimization strategy based on actual traffic conditions through the adjustment of cycle times and green time distribution. Furthermore, side friction management and geometric improvements at the intersection are necessary to support the effectiveness of traffic engineering measures. The findings of this study offer a practical contribution to the management of signalized intersections in urban areas experiencing high levels of saturation.

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