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1 – 10 of 362
Article
Publication date: 15 October 2018

Xin Zhao, Bo Dong and Weizhong Li

The freezing phenomenon of a falling droplet is a frequently encountered phenomenon in various applications, such as spray crystallization, hail formation and artificial…

Abstract

Purpose

The freezing phenomenon of a falling droplet is a frequently encountered phenomenon in various applications, such as spray crystallization, hail formation and artificial snowmaking. Therefore, this paper aims to understand the freezing processes of a falling droplet without and with initial horizontal velocity in a cold space.

Design/methodology/approach

The freezing processes of a falling droplet were characterized using a modified enthalpy-based lattice Boltzmann method.

Findings

The temperature field, streamlines and freezing process of the falling droplet were investigated and analyzed. The lower part of the droplet was frozen earlier than the upper part. The freezing trend slowed down in the later stage of the freezing process. The droplet shape was related to the initial vertical velocity, nucleation temperature and initial horizontal velocity.

Originality/value

A modified enthalpy-based lattice Boltzmann method is proposed. In the model, the improved pseudo-potential model is used and the radiation is considered. This method was firstly used to simulate the freezing process of a falling droplet. By examining these freezing processes in detail, the freezing trend and the effect factors of droplet deformation and freezing time were obtained, respectively.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 28 no. 10
Type: Research Article
ISSN: 0961-5539

Keywords

Case study
Publication date: 20 January 2017

Lynn A. Isabella and Gerry Yemen

Filtroil had opened a new factory that was a merger between Shenzhen Filtroil and its supplier, Liu Li—whose own factory was on the verge of bankruptcy. But the supplier had begun…

Abstract

Filtroil had opened a new factory that was a merger between Shenzhen Filtroil and its supplier, Liu Li—whose own factory was on the verge of bankruptcy. But the supplier had begun making excessive demands and threatening to delay product shipment to the United States if his conditions were left unmet. The case reveals the options that could be taken to manage the situation. The case is suitable for use in organizational behavior, human resource management, and strategy classes at the MBA and executive education levels.

Article
Publication date: 1 June 2015

Tao Sun, Weizhong Li and Bo Dong

The purpose of this paper is to test the feasibility of lattice Boltzmann method (LBM) for numerical simulation of nucleate boiling and transition boiling. In addition, the…

Abstract

Purpose

The purpose of this paper is to test the feasibility of lattice Boltzmann method (LBM) for numerical simulation of nucleate boiling and transition boiling. In addition, the processes of nucleate and transition boiling on vertical wall are simulated. The heat transfer mechanism is discussed based on the evolution of temperature field.

Design/methodology/approach

In this paper, nucleate boiling and transition boiling are numerically investigated by LBM. A lattice Boltzmann (LB) multiphase model combining with a LB thermal model is used to predict the phase-change process.

Findings

Numerical results are in good agreement with existing experimental results. Numerical results confirm the feasibility of the hybrid LBM for direct simulations of nucleate and transition boiling. The data exhibit correct parametric dependencies of bubble departure diameter compared with experimental correlation and relevant references.

Research limitations/implications

All the simulations are performed in two-dimensions in this paper. In the future work, the boiling process will be simulated in three-dimensional.

Practical implications

This study demonstrated a potential model that can be applied to the investigation of phase change heat transfer, which is one of the effective techniques for enhance the heat transfer in engineering. The numerical results can be considered as a basic work or a reference for generalizing LB method in the practical application about nucleate boiling and transition boiling.

Originality/value

The hybrid LBM is first used for simulation of nucleate and transition boiling on vertical surface. Heat transfer mechanism during boiling is discussed based on the numerical results.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 25 no. 5
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 17 October 2018

Tien Thi Hanh Ho and Ly Thi Tran

Vietnam’s 11th National Party Congress prioritised integration, modernisation and industrialisation as the new key orientations for Vietnam. It outlined Vietnam’s integration with…

Abstract

Purpose

Vietnam’s 11th National Party Congress prioritised integration, modernisation and industrialisation as the new key orientations for Vietnam. It outlined Vietnam’s integration with the world, not only economically, but also in terms of the social, cultural, educational, scientific and technological areas that can support social and economic development and sustainability. Vocational education has been recognised as pivotal to the nation’s sustainable workforce development and transformational changes. The purpose of this paper is to analyse how foreign approaches and practices have been filtered and appropriated to bring about sustainable development and transformational changes for Vietnamese vocational education.

Design/methodology/approach

The paper is derived from a study that involves documentary analysis, observation and semi-structured interviews with vocational learners and staff across three different vocational education and training (VET) sites in Vietnam. The overall study includes three vocational education providers and 22 participants altogether, but this paper involves observation and semi-structured interviews with eight participants, including one leader, two teachers and five students. It focusses on a Germany-funded vocational college in the northern central area of Vietnam that came under the management of the Ministry of Labour, Invalids and Social Affairs, and the local province where the college located.

Findings

The findings of the study show a critical need to develop a new “Vietnamese VET pedagogy” that filters international influences and flexibly and creatively combines them with the existing local pedagogy. To meet the local and global demands and bring transnational changes for Vietnamese vocational education, new VET pedagogies need to align with both Vietnamese historical and political situations, especially the emergent demands of the open market socialist economy and to capitalise on international influences – Confucian, French, Soviet and Western. Such a balance will ensure Vietnam makes use of both international forces and local strengths for sustainable development and transformational changes rather than passive dependence on foreign practices.

Research limitations/implications

The research provides valuable insights into the appropriation of foreign practices and principles in Vietnamese vocational education. However, it focusses only on three vocational education sites in central Vietnam. Further studies with larger scale of participants and across a variety of vocational education settings including public and private institutions, community centres and family workshops will offer broader findings related to this important topic.

Practical implications

The study suggests practical implications for institutions to deal with the challenges associated with the adaptation of international forces into the vocational education context in Vietnam. It outlines the transformational changes in pedagogical practices related to the increased requirement to move from the traditional didactic teaching to more self-directed learning, to meet the requirements of a modern vocational education system.

Originality/value

This study provides unique insights into the practices and challenges of filtering foreign VET practices and principles to bring about transformational changes in Vietnamese vocational education. It, therefore, responds to the paucity of literature in this area. In addition, it examines internationalisation in Vietnamese VET, an under-researched area in the field of internationalisation of education as most of the literature in this field concentrates on the higher education sector.

Details

Higher Education, Skills and Work-Based Learning, vol. 8 no. 4
Type: Research Article
ISSN: 2042-3896

Keywords

Article
Publication date: 7 November 2016

Joon-Seo Andrew Choi

The purpose of this paper is to examine the marketing journey of a professional baseball team in South Korea (the SK Wyverns), from the conception of a new “green” campaign to the…

Abstract

Purpose

The purpose of this paper is to examine the marketing journey of a professional baseball team in South Korea (the SK Wyverns), from the conception of a new “green” campaign to the resulting environmental, social and economic gains of the local community and of Korean baseball in general.

Design/methodology/approach

The investigator interviewed 12 constituents of the SK’s green marketing campaign, participated as an observer at seven separate field trips to the SK stadium and meetings, and collected and analyzed corporate documentation and physical artifacts. The role of the researcher as an advisor to the Wyvern’s green marketing initiative from the onset provided rare access to these multiple and different sources of evidence, which helped to establish the trustworthiness of the results (Yin, 2003).

Findings

By taking unconventional steps to find new funding opportunities, the team managed to achieve a triple benefit-of environmental, social and economic gains from green marketing. In the big picture, one will recognize that the SK Wyverns’ story is less about the opportune timing of its funding strategy, and more about its capacity for innovative thinking to address the big issue of meeting up-front costs.

Originality/value

The significance of the SK Wyverns’ green marketing program is that it shows how even a team in a non-major baseball market like South Korea can accept a big challenge and deliver the desired results by solving the cost issue in a proactive, creative way. The hope is that other sport franchises around Asia, in other regions faced with growing environmental concerns, may regard this case as a benchmark and find inspiration for their own creative solutions in going green.

Details

International Journal of Sports Marketing and Sponsorship, vol. 17 no. 4
Type: Research Article
ISSN: 1464-6668

Keywords

Article
Publication date: 1 June 2002

Soyoung Kim and Byoungho Jin

This exploratory study was designed to determine whether the retail service quality scale could be validated in a discount retail setting in the USA and Korea. Two convenience…

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Abstract

This exploratory study was designed to determine whether the retail service quality scale could be validated in a discount retail setting in the USA and Korea. Two convenience samples of US and Korean college students provided the data for the study. A multisample analysis supported that the same three dimensions of service quality existed in both samples, but the measurement model was not equivalent. Confirmatory factor analyses suggested that consumers in both cultures did not make a distinction between the personal attention and the problem solving dimensions. In addition, the policy dimension was not observed in either sample. Examination of the means of the dimensions indicated differences between the USA and Korea in the way consumers perceived the service quality of discount stores.

Details

Journal of Services Marketing, vol. 16 no. 3
Type: Research Article
ISSN: 0887-6045

Keywords

Content available
Article
Publication date: 24 August 2012

Michele E.M. Akoorie

561

Abstract

Details

Chinese Management Studies, vol. 6 no. 3
Type: Research Article
ISSN: 1750-614X

Article
Publication date: 11 April 2018

Kareen Brown, Fayez A. Elayan, Jingyu Li and Zhefeng Liu

The purpose of this paper is to investigate whether US regulatory actions around reverse mergers (RM) have exerted any spillover effects on the Chinese firms listed in China and…

Abstract

Purpose

The purpose of this paper is to investigate whether US regulatory actions around reverse mergers (RM) have exerted any spillover effects on the Chinese firms listed in China and whether Chinese firms have exhibited lower financial reporting quality than their US counterparts.

Design/methodology/approach

To test the possible spillover effect, this paper calculates three-day cumulative average abnormal returns (CAAR) and the aggregate CAAR for a series of US regulatory actions in 2010 and 2011. The study then compares the accrual quality, conditional conservatism, and information content of accruals of Chinese firms and US firms.

Findings

The paper documents a spillover effect of US actions around RM on Chinese stocks listed in China. Overall results do not support the perception that Chinese firms have lower financial reporting quality than their US counterparts.

Research limitations/implications

While this study provides evidence consistent with investors perceiving poor financial reporting quality among Chinese firms, that perception is not justified by empirical evidence.

Practical implications

Investors need not be overly concerned about the financial reporting quality among the Chinese firms when they make asset allocation decisions.

Social implications

A reality check is important given that perceptions may be outdated, biased, misleading, and costly.

Originality/value

This study puts the financial reporting quality of Chinese firms into perspective helping global investors assess information risk for optimal resource allocation.

Details

China Finance Review International, vol. 8 no. 4
Type: Research Article
ISSN: 2044-1398

Keywords

Article
Publication date: 1 June 2001

Jai Ok Kim and Byoungho Jin

As the competition in domestic markets increases, multinational retailers are expanding globally. Multinational discounters such as Wal‐Mart and Carrefour have been vying against…

4683

Abstract

As the competition in domestic markets increases, multinational retailers are expanding globally. Multinational discounters such as Wal‐Mart and Carrefour have been vying against Korean discounters for market share with the full liberalization of the distribution sector in 1997. This study examined various aspects of discount store retailing (store attributes, shopping costs) and consumers’ shopping motives, values, and retail outcomes (e.g. shopping excitement, satisfaction and repatronage intention), to understand Korean consumers’ discount store patronage. Significant differences were found in store image perceptions and shoppers’ internal orientations between multinational discount store patrons vs Korean discount store patrons. Theoretical and managerial implications are discussed.

Details

Journal of Consumer Marketing, vol. 18 no. 3
Type: Research Article
ISSN: 0736-3761

Keywords

Article
Publication date: 4 July 2018

Gopalakrishnan Narayanamurthy, Anand Gurumurthy and Roger Moser

Before initiating the implementation of change for transforming and improving an organization through lean thinking (LT), it has to first select a right value stream. Several…

Abstract

Purpose

Before initiating the implementation of change for transforming and improving an organization through lean thinking (LT), it has to first select a right value stream. Several implementation studies have been documented in literature, but not many studies have addressed this issue of value stream selection. The purpose of this paper is to propose and empirically validate a framework for selecting a value stream to implement LT.

Design/methodology/approach

8A framework is proposed by reviewing the literature on LT implementation case studies. Single case study methodology has been adopted to validate the application of 8A framework for selecting a value stream in an Indian educational institute. Since multiple qualifiers are considered simultaneously, a multi-criteria decision-making approach has been employed for choosing the value stream.

Findings

Utility of the proposed 8A framework for value stream selection was confirmed through its successful application in an educational institute. Out of three alternatives in the case organization, the teaching alternative was chosen for further LT implementation based on the application of 8A framework. Qualitative cross-validation and sensitivity analysis also confirmed the robustness of the value stream selection made using the 8A framework.

Research limitations/implications

Framework proposed in this study comprehensively captures the important qualifiers that were overlooked by the widely adopted first tenet of LT. Future research can attempt to generalize the applicability of 8A framework in different contexts including manufacturing, healthcare, software development, etc. A further study can be carried out in two similar case organizations or in two value streams of the same case organization (say in two different plants) to compare the differences in the outcome of lean implementation when one chooses its value stream for LT implementation without the application of the proposed framework, while another chooses it by applying the 8A framework.

Practical implications

Through structured evaluation of the comprehensive set of qualifiers in 8A framework using a multi-criteria decision making model, an informed decision can be taken by the practitioners in selecting a value stream from the available alternatives before proceeding with the implementation of LT.

Originality/value

After questioning the existing procedure of value stream selection for LT implementation, this study is the first to propose and validate an 8A framework that overcomes the limitations of the existing procedure. Study is also unique in the choice of the case organization as not many research papers have documented implementation of LT from the context of educational institutes.

Details

Journal of Organizational Change Management, vol. 31 no. 5
Type: Research Article
ISSN: 0953-4814

Keywords

1 – 10 of 362