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All Journal Rekayasa Mesin International Journal of Economics, Management, Business, and Social Science
Kadir , Abdul
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Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Mechanical Engineering Social Sciences

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Digital Wallet Promotion Strategy Towards Customer Loyalty During Pandemic Covid'19 Putra, Defin Shahrial; Zamrudy, Zakky; Kadir , Abdul
INTERNATIONAL JOURNAL OF ECONOMICS, MANAGEMENT, BUSINESS, AND SOCIAL SCIENCE (IJEMBIS) Vol. 1 No. 3 (2021): September 2021
Publisher : CV ODIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59889/ijembis.v1i3.25

Abstract

This study aims to determine the digital wallet promotion strategy for customer loyalty during the COVID-19 pandemic. This is because all aspects of the economy are disorganized and messy, since the covid'19 outbreak. The daily activity that has changed is the payment system, where the circulation of cash is not as much as it used to be. Non-cash payments that are now widely used by people to make transactions, and what has become a habit is digital wallets or electronic money payments via smartphone applications without the hassle of making daily transactions. In this study, because the population is unknown, the sampling technique used purposive sampling, namely a sample of 384 respondents. The analysis technique used is Structural Equation Modeling (SEM). The results showed that promotions such as giving discounts and cashback can have a good impact. In addition, a good promotional strategy will help the company attract customers. The implication of this research is that there is a need to add promotion, in addition to increasing sales results it also provides added value that will create customer loyalty.
SELECTION OF AN EFFECTIVE AND EFFICIENT DUAL-FUEL PROPULSION SYSTEM FOR LNG ISO TANK LCT SHIPS Palebangan, Hendra; Muhajirin, Muhajirin; Gutami , Nanda Itohasi; Kadir , Abdul
Jurnal Rekayasa Mesin Vol. 16 No. 3 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i3.1536

Abstract

Flexible dual-fuel technology is becoming increasingly important in the marine market, where alternative fuels are receiving more attention due to increasing concerns over exhaust pollutant emissions generated by internal combustion engines, fluctuating fuel costs, crude oil depletion, and classification issuing specific rules or guidelines for propulsion systems applied to LNG carriers. Various solutions have been proposed, including the use of alternative fuels. LNG, as a fuel, has been proven and is a viable solution to replace fuel oil. Through this propulsion system technology, it can be more flexible and efficient in accommodating various shipping routes and operations. The study used Rhinoceros, Maxsurf Modeller, and Numeca Fine Marine to integrate the track plan. Calculations of speed and break BHP, and validation of speed-power predictions with HydroComp PropExpert for propeller-engine matching confirmed the selection of dual-fuel engines. Based on the gearbox configuration and LNG load capacity, a dual-fuel ME propulsion system is selected. For large loads, use high pressure, and for small loads, use low pressure with the advantages of better energy efficiency, lower initial cost, slim dimensions, and Tier III NOx standards.
Co-Authors Defin Shahrial Putra Gutami , Nanda Itohasi Muhajirin, Muhajirin Palebangan, Hendra Zamrudy, Zakky