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Article
Publication date: 3 January 2023

Tri Bien Minh, Hien Vo and Luan Thanh Hua

The main purpose of the study was mechanical designing, simulation and manufacturing process for a new model of octocopter V-frame and to achieve simple manufacturing with 3D…

Abstract

Purpose

The main purpose of the study was mechanical designing, simulation and manufacturing process for a new model of octocopter V-frame and to achieve simple manufacturing with 3D printing technology. Moreover, the octocopter PID controller was simulated on the Simulink environment to get performance on the roll and pitch angle control.

Design/methodology/approach

Octocopter is one kind of multirotor vehicle (a rotorcraft with more than two rotors), that has lately gained a lot of attention for both the scientific and commercial spheres. With a greater number of rotors, the multirotor is very maneuverable and robust. Multi-copter makes an important contribution to the technological revolution in the military, industry, transportation, mapping and especially agriculture. Nowadays, we are heading to the four-industrial revolutions as well as the new technological application in the agricultural field such as precision agriculture, mapping and surveillance. Due to recently advanced technology about sensors, electronics, 3D printing, battery with high performance, multi-copter can be manufactured at low cost.

Findings

The V-frame octocopter was chosen to design in this paper; it had better performance scores including high redundancy rotors, high payload capability and affordable cost than another multi-copter family. The V-frame octocopter increasing freedom field of view of the camera was considered to place the camera position in the front of the drone.

Research limitations/implications

For the future aspects, the mechanical structure of the octocopter could be improved by using more advanced metal 3D printing to produce the aluminum or titan alloy materials for lighter and more rigid compared with ABS material, and finally the assembly to the real test.

Originality/value

The study shows the new platform of the V-frame octocopter kinematics analysis, designed on the CAD software, with some important mechanical parts using FEM analysis to find the highest stress and displacement under high load applied, the result of all connecting the joints 3D printing part is completely safe. Mechanical parts were manufactured by using 3D printing technology and CNC milling. Moreover, the study has shown V-frame octocopter simulation based on Simulink using the second method Ziegler- Nichols to find suitable parameters of the PID controller for roll and pitch angle. Using the block simulation is good for implementing and fast checking the new algorithm when building the new platform of the robot.

Details

International Journal of Intelligent Unmanned Systems, vol. 11 no. 3
Type: Research Article
ISSN: 2049-6427

Keywords

Article
Publication date: 31 March 2022

Malik Muneer Abu Afifa, Hien Vo Van and Trang Le Hoang Van

The purpose of this study is to use an extended Unified Theory of Acceptance and Use of Technology (UTAUT) model to investigate the intention to use blockchain from the…

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Abstract

Purpose

The purpose of this study is to use an extended Unified Theory of Acceptance and Use of Technology (UTAUT) model to investigate the intention to use blockchain from the accountant's point of view. The proposed model is expected to provide the necessary incentives for accountants to adopt blockchain. The authors build external constructs based on discussions of blockchain properties for accounting such as accounting information quality, job relevance and trust. In addition, the study also considers computer self-efficacy and compatibility as factors related to practitioners’ blockchain acceptance.

Design/methodology/approach

By using the developed online-questionnaire, the data is collected from the responses of 317 accountants working in listed enterprises in Vietnam. The main analyzes are performed by Smart partial least squares structural equation modeling technique to present both direct and indirect effects on the intention to use blockchain.

Findings

Experimental results provide many interesting and valuable things. First, performance and effort expectancy have a positive influence on intention to use blockchain, while social influence has a lower influence. Second, trust has a direct and positive effect on effort and performance expectancy, as well as intention to use blockchain. Quite surprisingly, accounting information quality has a positive effect on performance expectancy, while job relevance has a negative effect. Fourth, computer self-efficacy and compatibility have a positive effect on effort expectancy. It is more interesting that the intention to use blockchain has nothing to do with compatibility. The results of this study also show that performance and effort expectancy play a mediating role in the indirect effects of trust, computer self-efficacy and compatibility on intention to use blockchain.

Research limitations/implications

The study shows that accountants in Vietnam have a high intention to use blockchain. This implies that the Vietnamese Government and the professional association should design training programs or open training sessions on blockchain. Accountants can clearly understand the importance of blockchain in their work as well as the positive effect of blockchain on performance. They are consulted on how to use blockchain. They also perceive that using blockchain is not too difficult, and the acceptance of this technology will be higher. Additionally, universities should put triple-entry accounting into their teaching, so accounting students can improve their skills and knowledge relevant to blockchain to meet their career needs in the future.

Originality/value

The study proposes an extended UTAUT model with external constructs built on blockchain's effects on accounting. The model makes more sense in promoting the use of blockchain in accounting.

Details

Journal of Financial Reporting and Accounting, vol. 21 no. 1
Type: Research Article
ISSN: 1985-2517

Keywords

Article
Publication date: 3 October 2023

Malik Abu Afifa, Isam Saleh and Hien Vo Van

Based on the technology acceptance model theory, this study aims to explore whether perceived usefulness (PU), perceived ease of use (PE) and the availability to embrace…

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Abstract

Purpose

Based on the technology acceptance model theory, this study aims to explore whether perceived usefulness (PU), perceived ease of use (PE) and the availability to embrace technology (AET) influence the intention to accept an enterprise resource planning (ERP) system in Jordanian companies. It also analyses the influence of the intention to accept ERP system on ERP system adoption. More crucially, the current research fills a gap in earlier investigations by exploring the influence of adopting an ERP system on accounting information quality moderated by a company size.

Design/methodology/approach

This research seeks to provide evidence about the study context from Jordanian companies, as the research population and sample consist of all companies listed on the Amman Stock Exchange in 2022 (totally 170 companies). This signifies that the research method is a complete survey of the study population. The core data were collected using an online survey via Google Forms. It was emailed to the selected companies’ chief financial officers. Because each company received one online survey questionnaire, this unit of analysis is a company. Finally, 141 questionnaires were returned, reflecting an 82.94% response rate.

Findings

Empirically, the findings reveal that PU, PE and AET influence the intention to accept an ERP system, and that there is a positive relation between the intention to accept an ERP system and ERP system adoption. Furthermore, ERP system adoption positively influences relevance and faithful representation of accounting information moderated by company size.

Originality/value

This research adds to the accounting information quality literature by investigating the direct influence of ERP system adoption. Furthermore, the findings show the effectiveness of ERP system adoption and its regulatory roles in companies. Finally, this research was conducted to provide empirical knowledge on ERP system adoption in developing countries, notably Jordan.

Details

Global Knowledge, Memory and Communication, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9342

Keywords

Article
Publication date: 13 June 2022

Malik Abu Afifa, Isam Saleh, Aseel Al-shoura and Hien Vo Van

The direct nexus between board characteristics, earnings management (EM) practices and dividend payout is examined in this study, followed by an examination of the indirect…

Abstract

Purpose

The direct nexus between board characteristics, earnings management (EM) practices and dividend payout is examined in this study, followed by an examination of the indirect mediation impact of EM practices in the nexus between board characteristics and dividend payout. It aims to provide new empirical evidence from the Jordanian market, which is an emerging market.

Design/methodology/approach

The study population consists of all service firms that were listed on the Amman Stock Exchange (ASE) between 2012 and 2019. Due to the lack of availability of their complete data during the period, four service firms were omitted from the population; hence, a sample of 43 service firms was acquired over the time frame (2012–2019), yielding a total of 344 firm-year observations. Moreover, panel data analysis was employed in this study, and data for the study were acquired from yearly reports as well as the ASE's database.

Findings

Based on the GMM estimator findings, board size and independence have a negative and significant influence on the EM, but CEO/chairman duality has a positive and significant impact. Simultaneously, the impacts of female representation on the board of directors and the number of board meetings were both positive but insignificant. The findings also found that four board characteristics, including board size, female representation on the board of directors, CEO/chairman duality and the number of board meetings, had a significant negative or positive effect on dividend payout, while board independence did not. Additional findings show that EM practices have a direct negative insignificant effect on dividend payout, whereas EM practices partially mediate the relationship between board characteristics and dividend payout.

Research limitations/implications

The current study's limitation is that it only searched in Jordanian service firms listed on ASE from 2012 to 2019 to fulfill the study's objectives; thus, we urge that future work explores the study models for other sectors, whether in Jordan or other growing markets such as the Middle East and North Africa.

Practical implications

The findings of this study may be utilized by analysts, investors and other strategic decision-makers to enhance Jordan's financial market's efficiency and efficacy. These findings will improve policymakers' willingness to impose appropriate constraints, perhaps boosting Jordan's financial market performance and efficacy. These findings may also help investors make more enlightened judgments by utilizing board characteristics and EM factors that predict firm dividend policy.

Originality/value

Contradictions in the results of earlier investigations inspired the current study, with the findings filling a gap in the existing literature. This study differs from previous studies by constructing a novel research model and analyzing the mediating influence of EM in the nexus between board characteristics and dividend payout.

Details

International Journal of Emerging Markets, vol. 19 no. 1
Type: Research Article
ISSN: 1746-8809

Keywords

Book part
Publication date: 21 September 2017

Ngoc Lan Thi Dang

This chapter explores the influences of Vietnamese culture coupled with national policies on gender equality on academic women’s advancement into senior leadership positions.

Abstract

Purpose

This chapter explores the influences of Vietnamese culture coupled with national policies on gender equality on academic women’s advancement into senior leadership positions.

Methodology/approach

In-depth interviews with 20 mid-level women leaders and five top-level leaders were conducted at four different higher education institutions in the Mekong Delta (MD) in southern Vietnam. In addition, document analysis and participant observations contributed to the overall analysis, which allowed for the cross-check of data from multiple sources to investigate the participants’ understanding, perception, conceptualization, and interpretation of their experiences of advancing in their careers.

Findings

Findings show that there is a large gap between the policies and gender practices. Gender equality does not exist in reality, regardless of tremendous efforts from the Vietnamese government and policy makers to ensure it in all spheres of life. Additionally, patriarchal hierarchy remains dominant in the institutional administrative system, and Vietnamese Confucian ideology continues to confine and adversely affect both men’s and women’s perceptions of women’s social roles, status, and forms of social participation. Nevertheless, academic women still develop professionally and find their own ways to advance to a few key leadership positions at their institutions.

Research limitations

The sample of this study is limited to academic women in the MD in Vietnam. Future research should include more women and universities and colleges, from not only the southern part but also other regions of Vietnam. Further, international and comparative studies should be conducted to see differences in experiences of academic women from several Southeast Asian countries as they move up their career ladder.

Originality/value

Because there have not been any empirical studies about women and leadership in academia in the MD, this study serves as a resource and foundation for improving gender policies and practices as well as future research on this topic and gender issues of colleges and universities in Vietnam.

Details

Discourses on Gender and Sexual Inequality
Type: Book
ISBN: 978-1-78743-197-3

Keywords

Article
Publication date: 30 June 2022

Duc Hong Vo, Loan Thi Hong Van, Hien Thi Thu Hoang and Ngoc Phu Tran

Intellectual capital, corporate governance (CG) and corporate social responsibility (CSR) are generally considered three essential pillars to enhance firms’ performance in the…

1033

Abstract

Purpose

Intellectual capital, corporate governance (CG) and corporate social responsibility (CSR) are generally considered three essential pillars to enhance firms’ performance in the developed world. However, in developing countries such as Vietnam, these pillars have not received sufficient attention from practitioners. In addition, this study aims to investigate the interrelationship between these three essential pillars and their combined effects, in the Vietnamese context.

Design/methodology/approach

This study uses data collected from the annual reports of the largest listed banks in Vietnam from 2011 to 2018. Intellectual capital is measured using a modified value-added intellectual coefficient model. CG is proxied by board remuneration. This study measures CSR using the ratio between charitable contributions and profit before tax. In addition, this study uses the generalized method of moments to overcome several econometric problems exhibited in previous empirical studies.

Findings

Results indicate that CG and CSR have a positive impact on intellectual capital. Intellectual capital plays a moderating role in the relationship between CG and CSR. Moreover, CG and intellectual capital in the previous year significantly affect CG in the current year.

Practical implications

Based on the findings from this study, policy implications have emerged for bank executives and policymakers in formulating and implementing policy about the balance between intellectual capital accumulation, CG and CSR.

Originality/value

To the best of the authors’ knowledge, this is the first empirical study conducted to examine the interrelationship between intellectual capital, CG and CSR and their combined effects in emerging countries such as Vietnam.

Details

Social Responsibility Journal, vol. 19 no. 6
Type: Research Article
ISSN: 1747-1117

Keywords

Article
Publication date: 11 August 2021

Duc Hong Vo, Ngoc Phu Tran, Hien Thi-Thu Hoang and Loan Thi-Hong Van

This paper aims to provide empirical evidence and policy implications on the link between corporate social responsibility, financial inclusion and financial performance of the…

Abstract

Purpose

This paper aims to provide empirical evidence and policy implications on the link between corporate social responsibility, financial inclusion and financial performance of the banking sector in an emerging market.

Design/methodology/approach

This study uses data collected from the annual reports of 13 listed banks in Vietnam from 2011 to 2019. CSR is proxied by the ratio between charitable contributions and bank profits. Besides, this study uses the number of branches and the number of agents as the proxies for a level of financial inclusion. The generalized method of moments and various tests are used to ensure the robustness of the findings.

Findings

Findings in this study indicate that CSR activities do matter, and they contribute positively to financial inclusion. In addition, the bank’s size is also associated with an increased level of financial inclusion.

Practical implications

Findings from this study provide important implications for bank executives and policymakers in Vietnam in managing and extending CSR activities with the view of supporting and enhancing financial inclusion.

Originality/value

To the best of the author’s knowledge, this is the first empirical study in the context of the banking sector in Vietnam in which the impact of CSR activities and financial performance of the banking sector on financial inclusion at the bank level is examined.

Details

Journal of Asia Business Studies, vol. 16 no. 4
Type: Research Article
ISSN: 1558-7894

Keywords

Article
Publication date: 1 June 2017

Iftekhar Ahmed

This paper presents concepts important for understanding urban poor housing in Vietnam, with a focus on key environmental, socio-economic, and cultural dimensions that bear on the…

Abstract

This paper presents concepts important for understanding urban poor housing in Vietnam, with a focus on key environmental, socio-economic, and cultural dimensions that bear on the housing sector. The paper draws on extensive field studies and presents a diagnosis of the context of and prospects for housing of the urban poor in Vietnam's two main cities: Hanoi and Ho Chi Minh City. While the literature on this theme is scanty, it points to the market-orientated economic reforms initiated in the 1980s as a key factor in creating imbalance in the housing supply. Recognising the current challenges in balancing affordability and sustainability, the study explores Vietnam's lack of adequate and affordable housing and the problems faced by the urban poor in accessing adequate housing.

Details

Open House International, vol. 42 no. 2
Type: Research Article
ISSN: 0168-2601

Keywords

Article
Publication date: 17 February 2023

Hanh Minh Thai, Khue Ngoc Dang, Normaziah Mohd Nor, Hien Thi Nguyen and Khiem Van Nguyen

This study aims to investigate the relationship between corporate tax avoidance and stock price crash risk and the moderating effects of corporate governance.

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Abstract

Purpose

This study aims to investigate the relationship between corporate tax avoidance and stock price crash risk and the moderating effects of corporate governance.

Design/methodology/approach

This study investigates the relationship between corporate tax avoidance and stock price crash risk using the sample consisting of listed firms in Vietnam for the period of 2011–2020 using panel regressions.

Findings

The authors find that there is a positive relationship between tax avoidance and stock price crash risk. Foreign ownership weakens the impacts of tax avoidance on stock price crash risk, while managerial ownership strengthens the impacts. Female Chief Executive Officers (CEOs) and female chairpersons weaken this relationship. Board gender diversity and state ownership have insignificant moderating impacts.

Practical implications

These findings could help the stock market build better internal monitoring mechanisms to reduce the impacts of tax avoidance on future stock price crash risk. Investors can recognize the characteristics of corporate governance, especially foreign ownership, managerial ownership, female CEOs and female chairpersons when making investment decisions. The policy makers should consider policies to attract foreign investment and support women entrepreneurship.

Originality/value

This paper contributes to the literature on the impacts of tax avoidance on stock price crash risk in emerging countries. This paper is the first to investigate the influence of corporate governance mechanisms including state ownership, foreign ownership, female CEOs and chairpersons and board gender diversity on this relationship.

Details

International Journal of Emerging Markets, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1746-8809

Keywords

Book part
Publication date: 1 September 2022

Thiện Nguyễn Hoàng

This chapter provides information on the development of Vietnamese education under the influence of global forces based on the analysis of relevant education research and policies

Abstract

This chapter provides information on the development of Vietnamese education under the influence of global forces based on the analysis of relevant education research and policies using Wolhuter’s frameworks. In the process of coming up with ways to develop education in the face of different influences of globalization, besides having reactions with patterns commonly found in countries around the world, Vietnam also has responses that reflect its own political, sociocultural and economic characteristics. The state still plays a controlling role in education at all levels and many culture-related features that have existed throughout the country’s history have hardly changed, namely aspects related to teachers, learners and teaching and learning methods. To sustain its education in the globalized era, Vietnam must make more efforts in various aspects such as the link between education and employment, the logic of education objectives, the feasibility and appropriateness of curricula, quality of education, especially of higher education and equality in education for underprivileged groups.

Details

World Education Patterns in the Global South: The Ebb of Global Forces and the Flow of Contextual Imperatives
Type: Book
ISBN: 978-1-80382-681-3

Keywords

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