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Article
Publication date: 2 November 2015

Tien Phuc Dang, Zhengqi Gu and Zhen Chen

The purpose of this paper is to gain a better understanding of the flow field structure around the race car in two cases: stationary wheel and rotating wheel. In addition, this…

Abstract

Purpose

The purpose of this paper is to gain a better understanding of the flow field structure around the race car in two cases: stationary wheel and rotating wheel. In addition, this paper also illustrates and clarifies the influence of wheel rotation on the aerodynamic characteristics around the race car.

Design/methodology/approach

The author uses steady Reynolds-Averaged Navier-Stokes (RANS) equations with the Realizable k-ε model to study model open-wheel race car. Two cases are considered, a rotating wheel and stationary wheel.

Findings

The results obtained from the study are presented graphically, pressure, velocity distribution, the flow field structure, lift coefficient (Cl) and drag coefficient (Cd) for two cases and the significant influence of rotating case on flow field structure around wheel and aerodynamic characteristics of race car. The decreases in Cd and Cl values in the rotating case for the race car are 16.83 and 13.25 per cent, respectively, when compared to the stationary case.

Originality/value

Understanding the flow field structures and aerodynamic characteristics around the race car in two cases by the steady RANS equations with the Realizable k-ε turbulence model.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 25 no. 8
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 21 December 2022

Anni Rahimah, Huu Phuc Dang, Tessa Tien Nguyen, Julian Ming-Sung Cheng and Andriani Kusumawati

The purpose of this study is to investigate how negative emotions toward brands, especially brand hate, impact anti-brand consumption behavior, including brand avoidance and…

1375

Abstract

Purpose

The purpose of this study is to investigate how negative emotions toward brands, especially brand hate, impact anti-brand consumption behavior, including brand avoidance and further brand switching, through the intervening mediators of negative word-of-mouth (nWOM) and protest behavior as well as within contingencies.

Design/methodology/approach

Existing scales are adapted, and the field study is conducted in Malang, Indonesia. Based on purposive sampling, 275 respondents in three different malls complete a questionnaire related to Sari Roti, a national brand suffering from a boycott. In all, 250 qualified questionnaires are eventually used for data analysis using partial least square.

Findings

This research supports the effect of brand hate on nWOM, which then influences protest behavior, subsequently driving consumers to avoid a particular brand and opt for an alternative. nWOM was also found to have a direct effect on brand avoidance. For moderating effects, brand social responsibility and social media usage were found to negatively and positively affect the brand hate–nWOM relationship, respectively.

Originality/value

The limited extant literature only addresses a simple direct–effect relationship between negative emotions and anti-brand consequences. Drawing on the positioning lens and the dis-identification view, this research provides deep insight through theorizing a sequential, four-stage framework regarding the effect of brand hate on brand avoidance and brand switching. This framework is also explored under contingencies, further advancing an understanding of this dynamic subject matter.

Details

Journal of Product & Brand Management, vol. 32 no. 4
Type: Research Article
ISSN: 1061-0421

Keywords

Article
Publication date: 1 February 2023

Hoa Pham, Huu Phuc Dang and Bang Nguyen-Viet

The call for consumption reduction behavior has been getting more attention from scholars and practitioners. However, the consumption reduction often receives backfire from…

Abstract

Purpose

The call for consumption reduction behavior has been getting more attention from scholars and practitioners. However, the consumption reduction often receives backfire from consumers because it does not follow the business philosophy of demand creation. Thus, this research dissolves this issue by using a holistic corporate social responsibility (CSR) approach regarding sustainable development.

Design/methodology/approach

A conceptual model was developed to represent the proposed relationships among the related variables. The current study employed an online survey to collect data from 341 international program students of three prominent universities in Ho Chi Minh City, Vietnam.

Findings

The findings indicate that the perception of the holistic CSR negatively impacts perceived corporate hypocrisy, triggering in turn brand credibility, resulting in brand advocacy and mindful consumption behavior.

Originality/value

This research forms a holistic CSR including economic, environmental and societal dimensions and proposes that the holistic CSR triggers brand advocacy and mindful consumption behavior representing consumption reduction behavior via the mediating roles of perceived corporate hypocrisy and brand credibility. These findings contribute to theoretical and managerial implications in CSR practices with the aim of consumption reduction.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 27 no. 5
Type: Research Article
ISSN: 1361-2026

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: 6 July 2015

Philip Hallinger, Allan Walker and Gian Tu Trung

The purpose of this paper is to review both international and domestic (i.e. Vietnamese language) journal articles and graduate theses and dissertations on educational leadership…

1053

Abstract

Purpose

The purpose of this paper is to review both international and domestic (i.e. Vietnamese language) journal articles and graduate theses and dissertations on educational leadership in Vietnam. The review addresses two specific goals: first, to describe and critically assess the nature of the formal knowledge base on principal leadership in Vietnam, second, to synthesize findings from the existing literature on principal leadership in Vietnam.

Design/methodology/approach

The paper employed a method for conducting systematic reviews of research. The authors conducted a detailed, exhaustive search for international and “local” papers from Vietnam, yielding 120 research sources. Information from these papers was extracted and evaluated prior to analysis. Data analysis included both quantitative description of the “review database” as well as critical synthesis of substantive findings.

Findings

The review supports and extends an earlier review which found that the practice of educational leadership in Vietnam remains largely “invisible” to the international community of scholars. The review also yielded a highly critical assessment of research perspectives and methods used in the “local” Vietnamese studies which comprised the bulk of the authors’ database. Synthesis of substantive findings highlighted the manner by which organizational, political, and socio-cultural forces in the Vietnamese context shapes the practice of school leadership.

Research limitations/implications

First, qualitative studies are recommended that seek to describe, in-depth, the enactment of leadership in the Vietnamese context. Second, broad-scale surveys of characteristics, attitudes, and beliefs of school leaders across Vietnam are warranted. Third, the authors encourage graduate students and scholars studying school leadership in Vietnam to undertake a new generation of theory-informed studies that connect with the global literature.

Practical implications

Due to the relatively weak nature of the existing knowledge base, the authors were unable to identify specific implications for leadership practice. However, practical implications are identified for developing the research capacity needed to improve research quality in Vietnam’s universities.

Originality/value

This review is the first systematic review of educational leadership and management conducted of the Vietnamese literature. Moreover, the authors suggest that the review is original in its comprehensive coverage of both the local and international literature on educational leadership in Vietnam.

Details

Journal of Educational Administration, vol. 53 no. 4
Type: Research Article
ISSN: 0957-8234

Keywords

Article
Publication date: 17 July 2023

Nghia Nguyen, Thuy-Hien Nguyen, Yen-Nhi Nguyen, Dung Doan, Minh Nguyen and Van-Ho Nguyen

The purpose of this paper is to expand and analyze deeply customer emotions, concretize the levels of positive or negative emotions with the aim of using machine learning methods…

Abstract

Purpose

The purpose of this paper is to expand and analyze deeply customer emotions, concretize the levels of positive or negative emotions with the aim of using machine learning methods, and build a model to identify customer emotions.

Design/methodology/approach

The study proposed a customer emotion detection model and data mining method based on the collected dataset, including 80,593 online reviews on agoda.com and booking.com from 2009 to 2022.

Findings

By discerning specific emotions expressed in customers' comments, emotion detection, which refers to the process of identifying users' emotional states, assumes a crucial role in evaluating the brand value of a product. The research capitalizes on the vast and diverse data sources available on hotel booking websites, which, despite their richness, remain largely unexplored and unanalyzed. The outcomes of the model, pertaining to the detection and classification of customer emotions based on ratings and reviews into four distinct emotional states, offer a means to address the challenge of determining customer satisfaction regarding their actual service experiences. These findings hold substantial value for businesses operating in this domain, as the findings facilitate the evaluation and formulation of improvement strategies within their business models. The experimental study reveals that the proposed model attains an exact match ratio, precision, and recall rates of up to 81%, 90% and 90%, respectively.

Research limitations/implications

The study has yet to mine real-time data. Prediction results may be influenced because the amount of data collected from the web is insufficient and preprocessing is not completely suppressed. Furthermore, the model in the study was not tested using all algorithms and multi-label classifiers. Future research should build databases to mine data in real-time and collect more data and enhance the current model.

Practical implications

The study's results suggest that the emotion detection models can be applied to the real world to quickly analyze customer feedback. The proposed models enable the identification of customers' emotions, the discovery of customer demand, the enhancement of service, and the general customer experience. The established models can be used by many service sectors to learn more about customer satisfaction with the offered goods and services from customer reviews.

Social implications

The research paper helps businesses in the hospitality area analyze customer emotions in each specific aspect to ensure customer satisfaction. In addition, managers can come up with appropriate strategies to bring better products and services to society and people. Subsequently, fostering the growth of the hotel tourism sector within the nation, thereby facilitating sustainable economic development on a national scale.

Originality/value

This study developed a customer emotions detection model for detecting and classifying customer ratings and reviews as 4 specific emotions: happy, angry, depressed and hopeful based on online booking hotel websites agoda.com and booking.com that contains 80,593 reviews in Vietnamese. The research results help businesses check and evaluate the quality of their services, thereby offering appropriate improvement strategies to increase customers' satisfaction and demand more effectively.

Details

Journal of Hospitality and Tourism Insights, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9792

Keywords

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