Francisco Chinesta, Adrien Leygue, Marianne Beringhier, Linh Tuan Nguyen, Jean‐Claude Grandidier, Bernhard Schrefler and Francisco Pesavento
The purpose of this paper is to solve non‐linear parametric thermal models defined in degenerated geometries, such as plate and shell geometries.
Abstract
Purpose
The purpose of this paper is to solve non‐linear parametric thermal models defined in degenerated geometries, such as plate and shell geometries.
Design/methodology/approach
The work presented in this paper is based in a combination of the proper generalized decomposition (PGD) that proceeds to a separated representation of the involved fields and advanced non‐linear solvers. A particular emphasis is put on the asymptotic numerical method.
Findings
The authors demonstrate that this approach is valid for computing the solution of challenging thermal models and parametric models.
Originality/value
This is the first time that PGD is combined with advanced non‐linear solvers in the context of non‐linear transient parametric thermal models.
Details
Keywords
Nguyen Khanh Doanh, Truong Tuan Linh and Thi Tuan Linh Pham
This study uses a comprehensive theoretical framework that combines social cognitive theory and neighborhood effect to investigate the influence of neighborhood effects on…
Abstract
Purpose
This study uses a comprehensive theoretical framework that combines social cognitive theory and neighborhood effect to investigate the influence of neighborhood effects on farmers’ outcome expectations, observational learning and self-efficacy. This study aims is to analyze the mechanisms that underlie the adoption of social media by farmers for knowledge exchange in the agricultural context. Specifically, this research explores the role of neighborhood effects, outcome expectations, observational learning and self-efficacy in shaping farmers’ decision-making process regarding the use of social media platforms for exchanging agricultural knowledge.
Design/methodology/approach
The study data was collected through a sample survey conducted among 570 agricultural households residing in the provinces of Thai Nguyen, Cao Bang, Bac Kan and Phu Tho, located in the northern region of Vietnam. To analyze the data, structural equation modeling was used as the statistical technique of choice.
Findings
The findings of the study indicate a significant influence of neighborhood effects on outcome expectations, observational learning and self-efficacy. These factors, derived from social cognitive theory, also exhibit a positive association with farmers’ adoption of social media for knowledge exchange. Additionally, the study highlights that neighborhood contribute to a favorable adoption of social media among farmers via outcome expectations, observational learning, and self-efficacy.
Research limitations/implications
The study is limited in examining farmers’ social media adoption for agriculture knowledge exchange in Northern mountainous area of Vietnam. This study could be replicated across various regions or nations, providing comparative insights into the adoption of social media among farmers for knowledge exchange.
Practical implications
The study findings suggest practical and innovative means to promote farmers’ social media adoption for agriculture knowledge exchange.
Originality/value
This study presents a pioneering approach by integrating social cognitive theory and neighborhood effect to elucidate the factors influencing farmers’ adoption of social media for the purpose of agriculture knowledge exchange.
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Nguyen Khanh Doanh, Nguyen Ngoc Quynh and Thi Tuan Linh Pham
The purpose of this study is to examine how use of agriculture information systems could impact farmers' intention to convert from traditional to organic agriculture production in…
Abstract
Purpose
The purpose of this study is to examine how use of agriculture information systems could impact farmers' intention to convert from traditional to organic agriculture production in the mountainous areas of Northern Vietnam, based on a research framework developed from integrating Diffusion of Innovation Theory and Theory of Planned Behavior. Specifically, the authors aim to test the direct impact of use of agriculture information systems on converting intention and the interaction between use of agriculture information systems and perceived economic benefits, perceived non-economic benefits of organic production and market access on the formation of converting intention.
Design/methodology/approach
Data were collected from a sample survey that included 634 agriculture-producing households in Thai Nguyen, Tuyen Quang and Cao Bang provinces of Northern Vietnam. The logistic regression was used for data analysis.
Findings
Research findings indicate that perceived economic benefits, non-economic benefits, market access and use of agriculture information systems positively support the converting intention. Moreover, the use of information systems strengthens the links between the converting intention and perceived economic benefits, perceived non-economic benefits and market access.
Originality/value
This research is innovative in incorporating the use of agriculture information systems as both direct contributor and moderator in converting decisions.
Details
Keywords
Thien Vuong Nguyen, Dai Lam Tran, Tuan Anh Nguyen, Thi Thanh Huong Nguyen, Phi Hung Dao, Van Phuc Mac, Minh Thanh Do, Thi Mai Nguyen and Thi My Linh Dang
This study aims to explore how the inhibitor-loaded nanocontainers can be used in the epoxy coating for protection of steel against corrosion. A self-healing anticorrosive coating…
Abstract
Purpose
This study aims to explore how the inhibitor-loaded nanocontainers can be used in the epoxy coating for protection of steel against corrosion. A self-healing anticorrosive coating can be easily fabricated by embedding the inhibitor-loaded nanocontainers into the epoxy coating matrices. For this purpose, first, cerium (a catholic corrosion inhibitor) is encapsulated into silica nanoparticles (SiO2@Ce). Thereafter, an epoxy nanocomposite coating has been prepared on steel substrate using these SiO2@Ce nanoparticles as nanofillers.
Design/methodology/approach
To examine the effect of SiO2@Ce nanocontainers on mechanical properties of epoxy coating, the abrasion resistance, impact resistance and adhesion strength of coating have been evaluated. To reveal the effect of SiO2@Ce nanocontainer on corrosion behavior of epoxy-coated steel, the electrochemical impedance spectroscopy (EIS) has been conducted in NaCl solution.
Findings
Transmission electron microscopy and scanning electron microscopy/Energy-dispersive X-ray spectroscopy analyses indicate that Ce3+ cations have been successfully loaded into the surface of silica nanoparticles (at the content of approximately 2 Wt.%). Mechanical tests of epoxy nanocomposite coatings indicate that the nanocomposite coatings with nanoparticles content of 2.5 Wt.% provide the highest values of abrasion resistance, impact resistance and adhesion strength. EIS results show that the presence of SiO2@Ce3+ nanocontainers increases both coating resistance and polarization resistance. Along with the improvement the coating barrier performance, Ce inhibitor plays an important role in improving the anticorrosive performance at the steel–electrolyte interface.
Originality/value
The application of self-healing epoxy/SiO2@Ce nanocomposite coatings for the protection of carbon steel is very promising.
Details
Keywords
Gen-Yih Liao, Thi Tuan Linh Pham, Tzu-Ling Huang, T.C.E. Cheng and Ching-I Teng
Online games are prevalent internet applications and are known for satisfying the various needs of users. Nonetheless, little is known about whether online games could be a resort…
Abstract
Purpose
Online games are prevalent internet applications and are known for satisfying the various needs of users. Nonetheless, little is known about whether online games could be a resort for users encountering workplace frustration. Explaining how workplace frustration and users' need satisfaction affect loyalty of online gamers, this study aims to formulate hypotheses and develop a framework based on the self-determination theory (SDT).
Design/methodology/approach
The authors use an online survey to collect 848 responses and use structural equation modelling to test the hypotheses.
Findings
The authors find that workplace frustration, autonomy need satisfaction and competence need satisfaction are positively related to online gamer loyalty. Moreover, workplace frustration enhances the link between competence need satisfaction and online gamer loyalty.
Originality/value
The authors are the first to use SDT to identify the three antecedents and the moderator of online gamer loyalty. Our findings offer a key message that game providers could design effective means to retain their gamers by understanding their gamers' workplace frustration and informing them that playing games could alleviate the associated negative feelings.
Details
Keywords
Truong Tuan Linh, Nguyen Thi Thanh Huyen, Nguyen Ngoc Quynh and Nguyen Khanh Doanh
This study examines farmers’ intention to adopt digital payment (DP) in the mountainous regions of northern Vietnam, employing the unified theory of acceptance and use of…
Abstract
Purpose
This study examines farmers’ intention to adopt digital payment (DP) in the mountainous regions of northern Vietnam, employing the unified theory of acceptance and use of technology (UTAUT), self-efficacy theory and herd behavior theory.
Design/methodology/approach
This research used partial least square-SEM (PLS-SEM) with orthogonalizing approach to examine farmers’ adoption intention to adopt DP.
Findings
This research found that factors such as performance expectancy, effort expectancy, social influence and facilitating conditions emerge as significant drivers of farmers’ intention to adopt DP. Moreover, our findings highlight the substantial impact of herd behavior and imitation self-efficacy on farmers’ adoption intentions, illustrating their tendency to emulate the actions of others. Notably, DP self-efficacy emerges as a critical determinant, influencing farmers’ adoption intentions both directly and indirectly through performance and effort expectancies.
Research limitations/implications
Performance expectancy was used to represent DP benefits, which should be divided into economic and non-economic aspects. Imitation behavior and imitation self-efficacy were self-reported, potentially leading to overestimation due to self-image concerns. Hence, future research may consider using performance-based tests to measure herding behavior and imitation self-efficacy.
Originality/value
This study makes a distinct contribution to existing literature by incorporating imitation self-efficacy, thereby expanding the framework of self-efficacy theory in the context of DP adoption.
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Keywords
An H.K. Vo, Tuan-Duong Nguyen, Yen-Nhi Le, Huong Ngoc Quynh Cao, Van Ngoc Thanh Le and Khanh-Linh Huynh
Based on the model of Big-Five personality traits and theories of person–environment interaction, this study aims to investigate the moderating effects of personality traits on…
Abstract
Purpose
Based on the model of Big-Five personality traits and theories of person–environment interaction, this study aims to investigate the moderating effects of personality traits on innovativeness through knowledge sharing (KS).
Design/methodology/approach
A sample of 318 Vietnamese employees was collected. The hypothesized model was tested by using partial least squares structural equation modelling.
Findings
The results indicate that extraversion, agreeableness, conscientiousness and openness to experience have relationships with innovativeness through the mediating effect of KS. Furthermore, transformational leadership (TL) mitigates the positive relationship between agreeableness and openness to experience and innovativeness.
Practical implications
Based on the research results, the authors suggest several practical implications for enhancing employees' innovative organizational behaviours. Transformational leaders should be aware of and control the relationships with employees high in agreeableness and open to experience to ensure that employees' innovativeness can be freely developed.
Originality/value
This research systematically investigates the effect of each personality on employees' innovativeness. Furthermore, this study contributes to the leadership literature by suggesting the dark side of TL that can negatively influence the innovative ability of employees with certain personality traits.
Details
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Nguyen Khanh Doanh, Linh Tuan Truong and Yoon Heo
This paper aims at assessing the impact of institutional and cultural distances and trade barriers on ASEAN's trade efficiency using a panel data set of 65 countries for the…
Abstract
Purpose
This paper aims at assessing the impact of institutional and cultural distances and trade barriers on ASEAN's trade efficiency using a panel data set of 65 countries for the period 2006–2017.
Design/methodology/approach
First, the authors applied an improved version of the stochastic frontier model to estimate the trade efficiency scores. After that, we used the system generalized method of moment (GMM) estimator to investigate the impacts of institutional and cultural distances on ASEAN's trade efficiency.
Findings
The results show that the trade efficiency of ASEAN countries with the rest of the world (ROW) is moderate, ranging from 0.561 to 0.612, but shows a downward trend. This result indicates that considerable trade potential exists between ASEAN countries and ROW. Institutional and cultural distances, as well as the trade barriers, negatively affect ASEAN's trade efficiency. Efforts to reduce differences in institutions and cultures and to promote trade liberalization are vital remedies for ASEAN countries to turn potentials into actual trade performance.
Originality/value
This study contributes to the existing literature in three different ways. First, this is the first study on the impact of the differences between internal and external characteristics on trade efficiency, specifically, the impact of institutional and cultural distances on ASEAN's trade efficiency. Second, to obtain accurate efficiency scores, the authors use an improved version of the stochastic frontier model proposed by Karakaplan (2018), which can control the problem of endogeneity. Third, in quantifying the determinants of trade efficiency, the authors apply a system GMM estimator, which allows us to overcome the problems of endogeneity, measurement errors, and omitted variables.
Details
Keywords
Thi Tuan Linh Pham, Guan-Ling Huang, Tzu-Ling Huang, Gen-Yih Liao, T.C.E. Cheng and Ching-I Teng
Online games are widely adopted electronic applications that facilitate flow experiences, which is a highly enjoyable experience for players, thus motivating further engagement in…
Abstract
Purpose
Online games are widely adopted electronic applications that facilitate flow experiences, which is a highly enjoyable experience for players, thus motivating further engagement in online gameplay. During gameplay, players set gaming goals, and they must make cognitive efforts to achieve these goals. However, we do not know how goal-setting and cognitive gaming elements (game complexity and game familiarity) create flow, indicating a research gap. To fill this gap, we use the cognitive gaming elements in the literature and the theoretical elements of goal-setting theory to build a model.
Design/methodology/approach
Conducting a large-scale online survey, we collect 3,491 responses from online game players and use structural equation modeling for data analysis.
Findings
We find that challenging goals, game complexity, game familiarity and telepresence are positively linked to player-perceived flow, explaining 45% of the variance. The new finding is that challenging goals can strengthen the link between game complexity and flow. We also find that telepresence can strengthen the link between game familiarity and flow.
Originality/value
Our study provides the novel insight that gaming goals and cognitive gaming elements can generate player-perceived flow. This insight can help game makers design gaming elements to accommodate players' cognitive efforts to achieve in-game goals, thus creating flow and effectively increasing players' game engagement.
Details
Keywords
My-Linh Thi Nguyen and Tuan Huu Nguyen
This study examines the evidence of the impact of climate change on the financial performance of basic materials companies in Vietnam.
Abstract
Purpose
This study examines the evidence of the impact of climate change on the financial performance of basic materials companies in Vietnam.
Design/methodology/approach
The research sample includes eighty-two basic materials companies listed on the Vietnamese stock market from 2003 to 2022. This study used one-way and two-way fixed-effects feasible generalized least squares (FGLS) estimation methods.
Findings
Climate change, measured through variables including changes in temperature, average rainfall, greenhouse gas emissions and rising sea levels, has a negative impact on the financial performance of companies in this industry. The study also found that, with rising temperatures, the financial performance of steel manufacturing companies decreased less than that of coal mining and forestry companies, but increasing greenhouse gases and rising sea levels reduced the financial performance of steel companies. We did not find evidence of any difference in the impact of climate change on the financial performance of basic materials companies before and after the UN Climate Change Conference (COP 21). This is a new finding, which is consistent with empirical studies in Vietnam and different from previous studies in that it provides new evidence on the impact of climate change on the financial performance of basic materials companies in the Vietnamese market and cross-checks the impact of climate change by sector and over time.
Originality/value
To the best of our knowledge, this is one of the first articles on climate change and the financial performance of basic materials companies.