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All Journal Marketing Management Studies Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Kurnia, Elsa
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Aerospace Engineering Humanities Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Impact of perceived usefulness, ease of use, and privacy & security on QRIS adoption: mediating role of behavioral intention Kurnia, Elsa; Yolanda, Mike
Marketing Management Studies Vol. 4 No. 2 (2024): Marketing Management Studies
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/mms.v4i2.504

Abstract

This study aims to analyze the effect of Perceived Usefulness, Perceived Ease of Use, Privacy & Security on QRIS Use with Behavioral Intention as an Intervening Variable in State University Students in Padang City. The research focused on State University students residing in Padang City. A total of 190 respondents participated in the study, providing data via online questionnaires. Structural Equation Modeling (SEM) utilizing SmartPLS4 software was employed for data analysis. The findings revealed that: (1) Behavioral Intention significantly influences the utilization of QRIS among State University students in Padang City. (2) Perceived Usefulness significantly impacts the Behavioral Intention of State University students in Padang City. (3) Perceived Ease Of Use also significantly affects the Behavioral Intention of State University students in Padang City. (4) Additionally, Privacy & Security demonstrate a significant influence on the Behavioral Intention of State University students in Padang City.
Numerical Analysis of Sedimentation in Open Channels Using Computational Fluid Dynamics Putra, Yoga Satria; Noviani, Evi; Hasanuddin, Hasanuddin; Kurnia, Elsa; Christy, Maria Citra Puella
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 68 No 2 (2024): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v68i2.366

Abstract

This study investigates sedimentation in open channels utilizing Computational Fluid Dynamics (CFD). The validation indicates a strong agreement between the simulation and the reference data. Flow velocity substantially decreases in the branched channel post-bifurcation. Similarly, at a 90o bend, there is a notable drop in flow velocity after the curve. A vortex forms in areas where the velocity decreases. Sedimentation prediction can be achieved by observing these velocity reductions in specific channel sections. In the branched channel, low velocities and localized water eddies are found after the bifurcation point. In a channel with a 90o bend, the velocity diminishes on the inner side of the curve, with vortices forming, acting as potential sediment traps. This study highlights the utility of CFD as an effective method for enhancing the understanding of sedimentation processes in river systems.
Co-Authors Christy, Maria Citra Puella Evi Noviani Hasanuddin Hasanuddin Yoga Satria Putra Yolanda, Mike