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Measurement of Velocity Field Change around Stern of LNG Carrier Double Body Model by Propeller (프로펠러에 의한 LNG 운반선 이중모형 선미의 속도변화 계측)

  • Kim, Byong-June;Choi, Soon-Ho;Kim, Hyoung-Tae;Van, Suak-Ho
    • Journal of the Society of Naval Architects of Korea
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    • v.42 no.5 s.143
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    • pp.448-457
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    • 2005
  • The experiment was performed at the large wind tunnel of the Chungnam National University to measure the velocity distribution around the stern of a Liquefied Natural Gas Carrier model. The data, mean velocity vectors of turbulent shear flows at the stern and near-wake including the propeller plane, were obtained by a five-hole Pilot tube for the double body model fixed inside the wind tunnel test section. The present result of the double body model shows a close agreement with the result of the lowing tank experiment performed by the KRISO for the same ship model. The characteristics of the LNG stern flow are discussed based on the measured velocity distribution. The data can be very useful for the validation of some numerical methods in computational fluid dynamics.

The Impact of Technology Adoption on Student Satisfaction with Higher Education: An Empirical Study from Vietnam

  • HOANG, Linh;DANG, Ha
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.12
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    • pp.241-251
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    • 2021
  • This study aims to analyze the impact of technology adoption on students' satisfaction with the higher education system in Vietnam. With the continuous development of information and technology, the education sector in particular and many economic sectors in Vietnam have witnessed an explosion of applications and interventions in teaching-learning. However, these innovations have also received a lot of criticism regarding their effectiveness and feasibility. Although the numerous benefits that technology adoption has brought to education are apparent, many practitioners have not adjusted to this transition, resulting in lower learner satisfaction. Through a survey of more than 2472 university students in Vietnam, the results find a positive relationship between technology adoption and student satisfaction in higher education. We also test how nine contingent factors including gender, income, major, self-study time, learning methods, technology administration, self-ability in adopting technology, technology accessibility, and purpose of using technology can moderate that relationship. Indeed, technology adoption acts as a facilitator to make learning more convenient, effective, and accessible, rather than completely affecting learning outcomes and satisfaction. This result suggests that self-motivation is an important and decisive factor in improving satisfaction through choosing and applying technology effectively and appropriately.

The Effect of Ownership Structure on Transfer Pricing Decisions: Evidence from Foreign Direct Investments in Vietnam

  • TRAN, Quoc Thinh;TRAN, Mai Uoc;LUU, Chi Danh
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.12
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    • pp.183-189
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    • 2021
  • Transfer pricing is a matter of concern for countries. It affects the interests of the parties involved in the commercial transaction. Through manipulation of prices in transactions, businesses take advantage of tax rates in a country to adjust profits for economic gain. This affects the fairness and rationality of economic transactions between related parties. The article uses a two-year time series from 2018 to 2019 of 50 foreign direct investment enterprises in Vietnam. The article uses ordinary least squares to test the hypotheses of the research model. The article uses four independent variables related to ownership structure affecting transfer pricing decisions including total ownership, organization ownership, concentration ownership, and area ownership. Research results show that two variables have a positive influence on transfer pricing decisions including total ownership and organization ownership. Organization ownership has a higher degree of influence than total ownership. To be able to control transaction activities related to transfer pricing, Vietnam's state management agencies need to pay attention to perfecting the legal framework based on supplementing and amending regulations related to transfer pricing. Legal regulations need to be regulated based on international common practices to ensure uniformity on a global scale.

Factors Affecting Organizational Commitment: An Empirical Study of Information Technology Sector in Vietnam

  • NGUYEN, Van Thuy;NGUYEN, Trung Kien
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.11
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    • pp.277-284
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    • 2021
  • This study was conducted to determine the factors affecting employees' engagement in Information Technology (IT) enterprises in Vietnam. Quantitative method was used to test the research model. Research data is collected through a survey of 205 employees working in Ho Chi Minh City - Vietnam IT enterprises. The research results show that all seven factors affecting OC are ability, remuneration, training/development, challenging work, teamwork relationship, company policy, and culture, and work environment all make sense. In which, WOE, TER, REM factors are the three most influential factors, while company CPC, T&D, CHW, ABI have a lower impact. The proposed management implications include building, providing, ensuring a good working environment for employees, building/developing relationships within the company, having a policy of salary, bonus, support, and incentives. In addition, appropriate, competitive remuneration, adequate incentives, and rewards for the efforts that the employee has made, training and development of skills and soft skills suitable for each type of work, development orientations for employees, as well as frequent rotation of positions and jobs, in addition to improving employees' capacity, also avoid causing boredom and loss of motivation at work, thereby increasing OC of employees in IT enterprises in Vietnam.

Factors Influencing Horizontal Cooperation Among Logistics Enterprises: An Empirical Study from Vietnam

  • LE, Son Tung;PHAM, Thi Yen;DAO, Van Thi;PHUNG, Manh Trung
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.12
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    • pp.313-322
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    • 2021
  • Horizontal cooperation is seen as an effective way to raise a competitive advantage in logistics and transportation. However, there are many logistics enterprises still operating individually instead of cooperating. This research aims to investigate the factors influencing the decision of horizontal cooperation by surveying a large sample of Vietnamese logistics companies. This study employs 161 logistics companies to examine correlations between potential factors and horizontal collaboration. The structural equation model (SEM) was used to test the conceptual model and the relationships among variables. The findings revealed that information sharing was the most important predictor of 161 supply chain providers' horizontal collaboration decisions, which resulted in increased profitability or service quality. Besides, trust in partners was found to be positively related to the degree of horizontal cooperation among logistics companies. Finally, the finding of this research is that reputation had a positive effect on the strategy of horizontal cooperation. Our findings suggest that SME managers should be concerened about their information sharing, their reputation as well as their trust in partners if they would be invited in cooperation with another firm to increase service quality, performance, and competitive advantage.

Exploring Effects of Perceived Justice and Motivation on Satisfaction in Higher Education

  • BAO, Nguyen Van;CHO, Yooncheong
    • East Asian Journal of Business Economics (EAJBE)
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    • v.9 no.3
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    • pp.1-13
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    • 2021
  • Purpose - For many Vietnamese students, the national high school graduation examination is one of the most important exams in their lives, transitioning from high school to tertiary education. Considering that the national examination is exceptionally important for admission of higher education, failure of management system and educational inequalities lead to serious academic concerns. By using the concept of justice and motivation, the current study aimed to explore the effects of justice dimensions and motivation on student satisfaction in the context of education, specifically focusing on the national examination for higher education. Research design, data and methodology - In this regard, this study proposed a conceptual model and conducted an online survey to test relevant hypotheses. Result - The empirical findings of the study found that procedural, distributive justice, and intrinsic motivation affected the level of student satisfaction. The results found that distributive and procedural justice and intrinsic motivation showed significant on satisfaction. Conclusion - The results of this study would be useful for policymakers to make more informed choices and also suggest further programs and projects of the Vietnamese government, aiming to develop the system of university admissions in the future. This study suggests that adoption of better management system and policies will significantly affect academic satisfaction and higher education environment.

Critical Factors Influencing Consumer Online Purchase Intention for Cosmetics and Personal Care Products in Vietnam

  • NGUYEN, Lan;LE, Hoa Chi;NGUYEN, Thuy Thu
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.9
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    • pp.131-141
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    • 2021
  • With the rapid development of the Internet, online shopping has grown so fast that almost any good or service can be sold online today. The popularity and rapid growth of e-commerce signal a huge market opportunity for e-retailers. From the organizational perspective, it is necessary to evaluate and explore what drives customers to buy their products or to use their services. This study, therefore, aims to explain the online purchase intention and its determinants of Vietnamese customers for cosmetics and personal care products. Quantitative data was collected from an online survey conducted among university students, then was put into SPSS and AMOS for further analysis. Descriptive statistics, Cronbach's alpha test, exploratory factor analysis (EFA), regression analysis, and SEM were used to examine data from 434 valid answers. The research findings reveal that four factors positively affect purchase intention: Shopping enjoyment has the most significant impact, followed by trust, benefit, and website quality. On the other hand, perceived risk negatively influences purchase intention. While the cosmetics and personal care industry is thriving with a huge number of producers and consumers throughout the world, this study contributes to the existing literature in terms of capturing customers' needs and developing effective strategies to attract more online users.

Factors Influencing Corporate Debt Maturity: An Empirical Study of Listed Companies in Vietnam

  • NGO, Van Toan;LE, Thi Lanh
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.5
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    • pp.551-559
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    • 2021
  • The maturity structure of corporate debt is one of the significant financing choices that a firm must make simultaneously while deciding how to finance its operational and investment decisions. Even though the capital structure is one of the scrutinized topics of interest in the corporate finance literature, scarce studies have investigated corporate debt maturity, even less so in the context of emerging markets. The choice of a suitable debt maturity structure is exceptionally relevant for firms. It can enable them to avoid mismatch by aligning assets in line with liabilities, addressing agency-related problems, sidestep the ill effects of cost of capital, and signaling the firms' earning quality and value. The study investigates the firm-specific and macroeconomic determinants significant for the debt maturity structure of Vietnamese corporate firms. A sample of 722 non-financial firms listed on the Ho Chi Minh and Hanoi Stock Exchange in Vietnam from 2007 to 2018 was taken to test the hypothesis. The study's methods fixed effects panel data analysis provides empirical evidence that firm size, firms' quality, liquidity, leverage, asset maturity, tax impact, and macro variables are significantly related to the debt maturity structure.

Adhesion and Corrosion Resistance of Electrophoretic Paint on "Electroless" Paint Coated AZ31 Mg Alloy

  • Phuong, Nguyen Van;Kim, Donghuyn;Moon, Sungmo
    • Journal of the Korean institute of surface engineering
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    • v.51 no.6
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    • pp.405-414
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    • 2018
  • The present study investigated the adhesion and corrosion resistance of subsequent electrophoretic paint (E-paint) on "electroless" paint coated AZ31 Mg alloy, which was formed by immersion of AZ31 Mg alloy in E-painting solution. It was found that with increasing immersion time of AZ31 in E-painting solution, the amount of paint deposited by electroless process increased but it decreased the electrochemical equivalent of E-painting process and the adhesion of the subsequent E-paint layer. The E-paint on electroless paint coated AZ31 contained pores with the highest pore density and the largest pore size was obtained on the samples with electroless times of 2 and 5 minutes, respectively. Results of the salt-spray test showed an accelerated growth of blisters over the entire surface of the sample immersed for less than 5 minutes whereas blisters were observed only in the vicinity of the scratch in case of samples treated for 15 and 30 minutes. The E-paint on AZ31 with shorter electroless immersion time in E-painting solution was found to have good adhesion and better corrosion resistance.

Influences of Job Demands, Job Resources, Personal Resources, and Coworkers Support on Work Engagement and Creativity

  • TRUONG, Thuy Van Thi;NGUYEN, Hoang Vinh;PHAN, My Ca Thi
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.1
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    • pp.1041-1050
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    • 2021
  • Employee engagement plays an important role in the development as well as the success of a company. The manner in which employees are committed to their work and be more innovative seems to drive people's curiosity. This study aims to analyze the impacts of job demands-resources, personal resources, and coworker support on work engagement. Also, whether there is a relationship between work engagement and creativity of employees is tested through this research. The data served for the research was collected in the context of Vietnamese small- and medium-sized enterprises (SMEs). The authors used structural equation modeling (SEM) (software Smart PLS), to test the proposed hypotheses by using the data of 602 employees. Results of the study point out that proposed antecedents influence work engagement and creativity. Such findings have shed light on both theory and practice implications. In theory, it supports the social exchange theory and the job demands and resources model. In practice, leaders should assist subordinates in various aspects and build and promote a corporate culture where employees help others with great enthusiasm to increase the level of work engagement and spirit of innovation of employees.