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All Journal Journal of Engineering Science and Technology Management SCIENTIA JOURNAL : Jurnal Ilmiah Mahasiswa
Eddi
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Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Environmental Science Law, Crime, Criminology & Criminal Justice

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Pengaruh Kualitas Produk, Daya Tarik Iklan Dan Inovasi Desain Terhadap Loyalitas Pembelian Merek Oppo Di Kota Batam Eddi; Evyanto, Winda
SCIENTIA JOURNAL Vol 7 No 1 (2025): Scientia Journal
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/scientiajournal.v7i1.9616

Abstract

This study aims to analyze the effect of product quality, advertising appeal, and design innovation on Oppo brand purchase loyalty in Batam City. This study uses a quantitative approach with a descriptive design. Respondents in this study are Oppo product users in Batam City in 2024, with an unknown number of respondents. Sampling was carried out using the Lemeshow formula with 100 respondents drawn through a purposive sampling method based on certain criteria. The analysis process includes data quality testing, classical assumption testing, influence testing, and hypothesis testing. The results of the study show that product quality contributes 20.2% to purchase loyalty, advertising appeal contributes 33.6%, and design innovation contributes 28.1%. The coefficient of determination (R²) indicates that product quality, advertising appeal, and design innovation together influence purchase loyalty by 83.6%, while the rest is influenced by other factors outside this study. The t-test and F-test show that product quality, advertising appeal, and design innovation have a positive and significant influence on Oppo brand purchase loyalty
Analysis of the Implementation of the International Safety Management (ISM) Code During Tank Cleaning to Optimize Safety and Security on MT. Gandawati Daffani Tysa Lubis, Muhammad Naufal; Lestari, Elise Dwi; Eddi; Sitepu, Firdaus
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i1.398

Abstract

Tank cleaning on chemical tankers constitutes a high-risk maritime operation necessitating rigorous safety protocols to mitigate asphyxiation, toxicity, and explosion hazards. This study analyzes the implementation of the International Safety Management (ISM) Code during tank cleaning operations on board MT. Gandawati 1 to optimize occupational safety and security. Utilizing a descriptive qualitative approach, data were gathered through twelve months of direct participant observation, document analysis, and in-depth interviews with the ship’s command and crew. The results demonstrate a high level of structural compliance (88%), characterized by the systematic execution of risk assessments, enclosed space entry permits, and continuous atmospheric monitoring. However, a critical gap persists between regulatory requirements and operational reality, primarily driven by human factors. The study identified a 38.5% non-compliance rate regarding Personal Protective Equipment (PPE) usage, attributed to thermal discomfort and commercial time pressures. While the vessel achieved a zero-fatality record, the prevalence of near-miss incidents indicates that safety management has yet to be fully internalized into the onboard culture. The research concludes that optimizing safety requires transcending administrative compliance through enhanced behavioral supervision, ergonomic equipment upgrades, and the cultivation of a resilient safety culture.
Analysis of the Realization and Contribution of Non-Tax State Revenue (PNBP) by Service Type at the Karangantu Class III Port Authority Unit in 2024 Claudia Ode, Chintya Putri; Nugraha, Bugi; Eddi; Dahri, Muh.
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i1.404

Abstract

This study aims to analyze the realization and contribution of Non-Tax State Revenue (PNBP) based on service types at the Class III Port Authority Unit (UPP) Karangantu in 2024. The research focuses on: (1) revenue realization by service groups, (2) monthly realization trends and factors influencing fluctuations, (3) the contribution of each service type, and (4) the level of achievement of the 2024 Non-Tax State Revenue target. The study employs a quantitative descriptive method using secondary data obtained from official 2024 Non-Tax State Revenue reports. Data collection techniques include documentation, observations conducted during onshore practice, and informal interviews. Data analysis covers the calculation of realization percentages, contribution levels, monthly trends, and comparisons between revenue targets and actual achievements. The results indicate that the total realization of Non-Tax State Revenue in 2024 amounted to Rp 4,716,520,673, with revenue trends fluctuating throughout the year. The highest realization occurred in April, while the lowest was recorded in July. Contribution analysis shows that navigation aids services contributed the largest share (47.3%), followed by port services (45.8%). The achievement level of Non-Tax State Revenue reached 207.90% of the target, categorizing the performance as highly effective. This study concludes that the Class III Port Authority Unit Karangantu successfully managed Non-Tax State Revenue throughout 2024. The findings are expected to serve as evaluation material and support strategic planning for revenue improvement in the following year.
Co-Authors Claudia Ode, Chintya Putri Daffani Tysa Lubis, Muhammad Naufal Dahri, Muh. evyanto, winda Firdaus Sitepu Lestari, Elise Dwi Nugraha, Bugi