cover
Contact Name
Rifky Maulana Yusron
Contact Email
rifky.myusron@trunojoyo.ac.id
Phone
+6285233288882
Journal Mail Official
ijseit@gmail.com
Editorial Address
Fakultas Teknik, Universitas Trunojoyo Madura, Jl. Raya Telang PO BOX 2 Kamal, Bangkalan, 69192, East Java, Indonesia
Location
Kab. bangkalan,
Jawa timur
INDONESIA
International Journal of Science, Engineering and Information Technology
ISSN : -     EISSN : 25484214     DOI : 10.21107
International journal of science, engineering and information techology (IJSEIT) is open access and peer-reviewed journal, published by Universitas Trunojoyo Madura which. We escalate both theoretical and experimental papers of permanent interest, not previously published in a journal that aims to promote the theory and practice of science, engineering and information technology. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-art reviews and communications in the broadly defined field of science, engineering and information technology Faculty of Engineering , The University of Trunojoyo Madura, Jl. Raya Telang PO BOX 2 Kamal, Bangkalan, 66192, East Java, Indonesia Publication Schedule : July and December First edition : December 2016 The scope of IJSEIT includes a wide spectrum of subjects including Science (Mathematics, Physics, Biology, Chemistry, Social Science, Material Sciences, Food Sciences, Environmental Science, Earth Science, Space Science, Agricultural Science, Sustainable Development, Applied Physics, Communicable Diseases, Emergency Medicine, Micro-Nano Sciences, Environmental Health). Engineering (Automotive Technologies, Material Engineering, Construction Materials, Design and Manufacturing, Dynamics and Control, Energy Generation, Utilization, Conversion, Fluid Mechanics and Hydraulics, Heat and Mass Transfer, Renewable and Sustainable Energy Technologies, Robotics and Mechatronics, Solid Mechanics and Structure, Thermal Sciences, Computer Vision and Robotics, Control Theory, Electromagnetic Waves, Microwave Techniques and Antennas, Embedded Systems, Integrated Circuits, VLSI Design, Testing, Microelectromechanical Systems, Microelectronics, Electronic Devices and Circuits, Power, Energy, and Signal). Information Technology and Systems (Coding, Cryptography, and Information Protection, Communications, Networks, Mobile Computing, and Distributed Systems, Compilers and Operating Systems, Computer Architecture, Supply Chain Management, Image Processing, Speech Processing, Strategy, Change Management, Human Resources, System Development, and Implementation, Communications, Software Engineering, Technology Developments, Technology Futures, Data Mining, Information Retrieval, Big Data, Internet, Cloud Data Management, E-Government, Smart City, Knowledge Management, Service Innovation, Digital Enablement, Business Process Management, Web Semantics, Visual and Audio Information Systems, Scientific Computing, and Organisational Behaviour).
Articles 142 Documents
An Experimental Study on the Influence of Injection Timing Variations on Diesel Engine Performance Using Dexlite and Cooking Oil Blends Bisono, Rahayu Mekar
International Journal of Science, Engineering, and Information Technology Vol 10, No 1 (2025): IJSEIT volume 10 Issue 1 December 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/ijseit.v10i1.33554

Abstract

This study aims to analyze the effect of firing point variations on the performance of the S195 type diesel engine using a mixture of Dexlite fuel and cooking oil. The firing point variations used were 17°, 18°, and 19° before TDC, with the fuel mixture containing 30% cooking oil. Tests were conducted to measure thermal efficiency, specific fuel consumption (SFC), and engine output power. The results showed that proper firing point settings can increase thermal efficiency and decrease SFC, especially at an angle of 18°, where the highest thermal efficiency was 24.80% and the lowest SFC was 0.342 kg/kWh. In addition, the use of this mixed fuel was able to provide more perfect combustion than pure Dexlite fuel. The conclusion of this study suggests the need for good engine maintenance and proper injection timing to improve the performance of diesel engines based on mixed fuel, as well as an effort to utilize cooking oil as a renewable energy source.
SERVICE QUALITY, PROMOTION AND AFTER SALES SERVICE EFFECT ON HONDA MOTORCYCLE CUSTOMER SATISFACTION AT ASTRA MOTOR CENTER JAKARTA Rafsanjani, Sherva
International Journal of Science, Engineering, and Information Technology Vol 10, No 1 (2025): IJSEIT volume 10 Issue 1 December 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/ijseit.v10i1.33610

Abstract

Companies in the motorcycle business exist to meet the public's driving needs, leading to intense competition among similar companies in presenting product excellence to capture consumer attention. This competition is unavoidable for Honda Astra Motor Center Jakarta , which must continuously strive to achieve its desired market share through strategic business policies and excellent service aimed at customer satisfaction.To face this intense competition, companies need to conduct intensive promotional activities using various promotional media such as print, electronic, and outdoor media. However, to increase product sales, companies must be able to strictly and selectively select the advertising media they will use for their own promotional activities. The purpose of this study is to determine the effect of service quality, promotion, and after-sales service on customer satisfaction, service quality on customer satisfaction, promotion on customer satisfaction, and how after-sales service conditions affect customer satisfaction. The testing process was carried out using several methods: validity testing, reliability testing, multicollinearity testing, heteroscedasticity testing, normality testing, and multiple linear regression analysis. The results of the Effect of Service Quality, Promotion and After Sales Service on Consumer Satisfaction Simultaneously at the level of significance below 0.05, service quality, promotion, and after sales service have a simultaneous effect on customer/consumer satisfaction. For the Partial Effect of Service Quality on Consumer Satisfaction through questionnaires distributed to respondents, most respondents stated that they agree that service quality has a positive effect on customer/consumer satisfaction. For the Partial Effect of Promotion on Consumer Satisfaction, it states that promotion has a significant effect on customer/consumer satisfaction. In the Partial Effect of After Sales Service on Consumer Satisfaction, most respondents stated that they did not agree that after sales service has a positive effect but has a negative effect on customer/consumer satisfaction.