Ji Hyun Cho, Jae Hoon Lee, Dong Geun Ahn and Joong Soon Jang
The purpose of this paper is to determine the key ingredients of Six Sigma in order to grasp and understand its essential characteristics and then identify suitable ingredients…
Abstract
Purpose
The purpose of this paper is to determine the key ingredients of Six Sigma in order to grasp and understand its essential characteristics and then identify suitable ingredients and complements in consideration of vision, strategies, capability, and circumstance of a company.
Design/methodology/approach
The study outlines the range of research in Korean enterprises, suppliers, and SMEs. Potential ingredients collected from previous studies about critical success factors, ingredients of Six Sigma and TQM, and criteria of quality awards (Malcolm Baldrige National Quality Award (MBNQA), European Foundation for Quality Management (EFQM) Award, Deming Prize, Korean National Quality Award) are classified into 11 categories based on Six Sigma expert opinions and affinity analysis. Also, questionnaires are surveyed from champions, master black belts and black belts in 90 Korean companies that have more than three years of experience in implementing Six Sigma. Statistical analysis with factor analysis and hypothesis testing has been done to select the key ingredients and to find the differences among the diverse types of companies.
Findings
By using factor analysis, three main factors are derived for each category respectively, and consequently 30 factors in 11 categories are concluded as the key ingredients of Six Sigma in Korean companies. There is a significant difference in importance of Six Sigma key ingredients according to company size, business type, and implementation phase.
Research limitations/implications
A study may be conducted to identify Six Sigma success factors according to corporate characteristics from key ingredients identified in this study in future.
Originality:/value
The paper investigates the key ingredients of Six Sigma based on a survey of diverse sizes, industries, and implementation phases of Korean companies. Compared with other studies conducted by empirical methods, the survey data are statistically analysed and the evaluation results are represented as quantitative indicators.
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J.E. Ruckman, S.G. Hayes and J.H. Cho
Based upon numerous assertions that a garment should be developed to maximise athletes' muscle performance while maintaining freedom of movement, this paper initially discusses…
Abstract
Based upon numerous assertions that a garment should be developed to maximise athletes' muscle performance while maintaining freedom of movement, this paper initially discusses the development of a perfusion suit that utilises a flexible single layer cooling system, with a view to the development of a cooling garment that does not employ a conventional tubing system which can restrict movement. The stages of the development have been described in detail, and an appropriate evaluation completed for both the initially developed perfusion suit and the subsequently developed cooling garment (modified perfusion suit). From results obtained from experiments conducted using the cooling garment, which incorporates super absorbent sodium polyacrylate pads as the cooling component, the following conclusions were drawn. First, anterior thigh temperature was reduced by 4–5°C at the end of the cooling period confirming that the developed cooling garment provides effective cooling. Second, although the difference between the skin temperature of the anterior thigh when cooling is applied to that when cooling is not applied decreased during the exercise period, the difference is still significant confirming that cooling of the anterior thigh by wearing the developed cooling garment persists throughout the duration of exercise.
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Zhibin Zhou, Jongwook Kwon, Bo Zhang, Junjian Li, Hak cho Kim and Ji Hyun Heo
During the past several decades, national distance (ND) increasingly became a vital cornerstone in international business (IB) research, as both explicit and implicit distance are…
Abstract
Purpose
During the past several decades, national distance (ND) increasingly became a vital cornerstone in international business (IB) research, as both explicit and implicit distance are parts of the essential reasons for IB activities. However, there are various and chaotic methods to measure ND in the last literature; therefore, this paper aims to suggest legitimate uses of ND in the IB field and the best ND dimensions for various situations.
Design/methodology/approach
This paper used a historical overview of the theoretical background and conceptual development of ND based on the past four decades worth of studies in leading 17-IB journals using Google Scholar. The authors also focus on multiform ND measurement methods and details through qualitative and quantitative analysis based on previous studies’ data collection.
Findings
This research summarized the common measurement methods and elements of different ND and proposed solutions based on a multifaceted analysis.
Originality/value
The micro analysis examines each type of ND in terms of the proportion of variables, issues, measurement methods, representative proxies beyond previous studies. This research also tried to provide clarity and suggest solutions to these problems through our macro& micro-analysis.
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Chang Hoon Yang and Na Hyun Cho
This paper aims to shed light on the linkage between research and development (R&D) networks and public funding presented in a given period by using network-based evaluation tools…
Abstract
Purpose
This paper aims to shed light on the linkage between research and development (R&D) networks and public funding presented in a given period by using network-based evaluation tools as a means of exploring the relational dimension in public projects designed to foster technology R&D activities.
Design/methodology/approach
This research uses co-occurrence network analysis of relevant public projects to assess how technological associations might occur within the R&D activities of given publicly funded projects as well as conducts correlation analysis to understand the extent to which linkages of R&D activity in technology fields are related to public expenditure.
Findings
Core technology fields, regarded as eligible to receive continued public funding, are critical for enhancing competitiveness and sustainable growth at the nationally strategic technology level. Thus, the relationship between R&D and the level of government funding for these fields is generally perceived as strong. However, a few technology fields, which did not actively form specific network relationships with other technology fields, are considered to exceptionally drive the largest government support. This trend indicates that the government-funded R&D should be designed and managed not only to curb the inefficiencies existing in the current funding programs but also to achieve the appropriateness for further technology development.
Research limitations/implications
Despite the comprehensive findings, this study has several limitations. First, it is difficult to control any confounding factors, such as the determinants and constraints of the government budget allocation and expenditure decisions over S&T areas, strategic frameworks for public investment and evolving policy landscapes in technology sectors, which lead to bias in the study results. Second, this study is based on a narrow, single-year data set of a specific field of projects supported by the Korean government’s R&D program. Therefore, the generalization of findings may be limited. The authors assumed that influences caused by confounding variables during the initial phase of the public funding schemes would not be significant, but they did not take into account possible factors that might arise coincident with the subsequent phase changes. As such, the issue of confounding variables needs to be carefully considered in research design to provide alternative explanations for the results that have been ruled out. The limitations of this study, therefore, could be overcome by comparing the outcome difference between subsidized and non-subsidized R&D projects or evaluating targeted funding schemes or tax incentives that support and promote various areas of R&D with sufficiently large, evidence-based data sets. Also, future research must identify and analyze the R&D activities concerning public support programs performed in other countries associated with strategic priorities to provide more profound insight into how they differ. Third, there are some drawbacks to using these principal investigators-provided classification codes, such as subjectivity, inaccuracy and non-representation. These limitations may be addressed by using content-based representations of the projects rather than using pre-defined codes. Finally, the role that government investment in R&D has played in developing new science and manufacturing technologies of materials and components through network relationships could be better examined using longitudinal analysis. Furthermore, the findings suggest the need for further research to integrate econometric models of performance outcomes such as input–output relations into the network analysis for analyzing the flow of resources and activities between R&D sectors in a national economy. Therefore, future research would be helpful in developing a methodological strategy that could analyze temporal trends in the identification of the effects of public funding on the performance of R&D activity and demand.
Practical implications
Public funding schemes and their intended R&D relationships still depend on a framework to generate the right circumstances for leading and promoting coordinated R&D activities while strengthening research capacity to enhance the competitiveness of technologies. Each technology field has a relatively important role in R&D development that should be effectively managed and supervised to accomplish its intended goals of R&D budgeting. Thus, when designing and managing R&D funding schemes and strategy-driven R&D relations, potential benefits and costs of using resources from each technology field should be defined and measured. In this regard, government-funded R&D activities should be designed to develop or accommodate a coordinated program evaluation, to be able to examine the extent to which public funding is achieving its objectives of fostering R&D networks, balancing the purpose of government funding against the needs of researchers and technology sectors. In this sense, the examination of public R&D relations provides a platform for discussion of relational network structures characterizing R&D activities, the strategic direction and priorities for budget allocation of the R&D projects. It also indicates the methodological basis for addressing the impact of public funding for R&D activities on the overall performance of technology fields.
Originality/value
The value of this work lies in a preliminary exploratory analysis that provides a high-level snapshot of the areas of metallurgy, polymers/chemistry/fibers and ceramics, funded by the Korean Government in 2016 to promote technological competitiveness by encouraging industries to maintain and expand their competencies.
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Young-Myon Lee and Michael Byungnam Lee
While the origin of Korean Industrial Relations goes back 150 years when the country opened its seaports to foreign countries, it didn’t emerge as a field of study until 1950s…
Abstract
While the origin of Korean Industrial Relations goes back 150 years when the country opened its seaports to foreign countries, it didn’t emerge as a field of study until 1950s when academics began to write books and papers on the Korean labor movement, labor laws, and labor economics. In this paper, we sketch this history and describe important events and people that contributed to the development of industrial relations in Korea. Korean industrial relations in the early 20th century were significantly distorted by the 35-year-Japanese colonial rule (1910–1945). After regaining its independence, the U.S. backed, growth-oriented, military-based, authoritarian Korean government followed suit and consistently suppressed organized labor until 1987. Finally, the 1987 Great Labor Offensive allowed the labor movement to flourish in a democratized society. Three groups were especially influential in the field of industrial relations in the early 1960s: labor activists, religious leaders, and university faculty. Since then, numerous scholars have published books and papers on Korean industrial relations, whose perspectives, goals, and processes are still being debated and argued. The Korean Industrial Relations Association (KIRA) was formed on March 25, 1990 and many other academic and practitioner associations have also come into being since then. The future of industrial relations as a field of study in Korea does not seem bright, however. Issues regarding organized labor are losing attention because of a steadily shrinking unionization rate, changing societal attitude toward labor unions, and the enactment of new and improved laws and regulations regarding employment relationships more broadly. Thus, we suggest that emerging issues such as contingent workers, works councils and tripartite partnership, conflict management, and human rights will be addressed by the field of industrial relations in Korea only if this field breaks with its traditional focus on union and union–management relations.
The purpose of this paper is to address various works on mixed convection and proposes 10 unified models (Models 1–10) based on various thermal and kinematic conditions of the…
Abstract
Purpose
The purpose of this paper is to address various works on mixed convection and proposes 10 unified models (Models 1–10) based on various thermal and kinematic conditions of the boundary walls, thermal conditions and/ or kinematics of objects embedded in the cavities and kinematics of external flow field through the ventilation ports. Experimental works on mixed convection have also been addressed.
Design/methodology/approach
This review is based on 10 unified models on mixed convection within cavities. Models 1–5 involve mixed convection based on the movement of single or double walls subjected to various temperature boundary conditions. Model 6 elucidates mixed convection due to the movement of single or double walls of cavities containing discrete heaters at the stationary wall(s). Model 7A focuses mixed convection based on the movement of wall(s) for cavities containing stationary solid obstacles (hot or cold or adiabatic) whereas Model 7B elucidates mixed convection based on the rotation of solid cylinders (hot or conductive or adiabatic) within the cavities enclosed by stationary or moving wall(s). Model 8 is based on mixed convection due to the flow of air through ventilation ports of cavities (with or without adiabatic baffles) subjected to hot and adiabatic walls. Models 9 and 10 elucidate mixed convection due to flow of air through ventilation ports of cavities involving discrete heaters and/or solid obstacles (conductive or hot) at various locations within cavities.
Findings
Mixed convection plays an important role for various processes based on convection pattern and heat transfer rate. An important dimensionless number, Richardson number (Ri) identifies various convection regimes (forced, mixed and natural convection). Generalized models also depict the role of “aiding” and “opposing” flow and combination of both on mixed convection processes. Aiding flow (interaction of buoyancy and inertial forces in the same direction) may result in the augmentation of the heat transfer rate whereas opposing flow (interaction of buoyancy and inertial forces in the opposite directions) may result in decrease of the heat transfer rate. Works involving fluid media, porous media and nanofluids (with magnetohydrodynamics) have been highlighted. Various numerical and experimental works on mixed convection have been elucidated. Flow and thermal maps associated with the heat transfer rate for a few representative cases of unified models [Models 1–10] have been elucidated involving specific dimensionless numbers.
Originality/value
This review paper will provide guidelines for optimal design/operation involving mixed convection processing applications.
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Byung Han So, Ji Hyun Kim, Yun Jeong Ro and Ji Hoon Song
The purpose of this paper is to develop a reliable and valid measurement scale of employee engagement that can be used in human resources departments in any industry field.
Abstract
Purpose
The purpose of this paper is to develop a reliable and valid measurement scale of employee engagement that can be used in human resources departments in any industry field.
Design/methodology/approach
This study used the measurement development process with three steps. The first step was to generate items for measuring employee engagement. For this reason, the authors proposed an integrated conceptual model based on the results of a literature review and justify the concepts from self-determination theory and person-environment fit theory as the theoretical foundation. The second step was to determine the types of questions suitable for measurement, examining the content validity. Content validity was conducted two times by the group, academic experts and business practitioners. The last step was to examine the exploratory factor analysis (EFA), confirmatory factor analysis (CFA), multi-group analysis and reliability with 352 survey responses from the South Korean business context.
Findings
Findings of the measurement scale development procedure, i.e. employee engagement, should be managed in a balanced manner in all dimensions, as it is composed of four dimensions (person engagement, work engagement, organization engagement and relation engagement) and 16 sub-factors. Additionally, organization engagement was the major factor among the four dimensions of employee engagement with the highest variance explanation. From the statistical standpoint, the employee engagement scale (EES) is possible to use in any industry field because it demonstrated not only content validity and internal consistency reliability but also the three steps of factor analysis (EFA, CFA and multi-group analysis).
Research limitations/implications
This survey was conducted with an assistant manager located in Korea. Therefore, it will be necessary to analyze both leader and employee engagement for those who live in foreign countries. The EES is useful to leaders and human resource managers because it is applicable to managing engagement levels of employees and fosters customized training programs.
Originality/value
This is the first study to develop measurement tools for employee engagement in South Korea. In addition, most studies demonstrated that individual feeling was valued to drive employee engagement. This research, however, proposes an extended concept of employee engagement for four dimensions (person, work, relation and organization) and emphasizes the important relationship between individuals and colleagues in an organization. Based on these results, a theoretically integrated model of employee engagement was developed and a practically valid measurement tool for capturing comprehensive domains of employee engagement was proposed.
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This chapter explores the adaptation and evolution of stand-alone CSR reporting in two different political economies and late-capitalist countries: Brazil and South Korea. Instead…
Abstract
Purpose
This chapter explores the adaptation and evolution of stand-alone CSR reporting in two different political economies and late-capitalist countries: Brazil and South Korea. Instead of selecting between new institutionalism and the varieties of capitalism (VOC) approach, this study attempts to explore how the interaction between converging and diverging pressures appears in the adaptation and evolution of stand-alone CSR reporting (i.e., cross-fertilization process) in two countries.
Design/methodology/approach
Using qualitative content analysis this study focuses on the frameworks of CSR reports and the way CSR issues are described within the stand-alone CSR reports of four telecommunication companies in Brazil and South Korea.
Findings
Even though CSR reports in both countries have become similar due to the convergence of frameworks of CSR reporting, the key themes and the representation on each theme are still embedded within each form of market economy: a hierarchical market economy (HME) in Brazil and a network market economy (NME) in South Korea. From a cross-fertilization perspective, this chapter shows that the adaptation and evolution of CSR reporting occurs at two different levels of CSR reporting.
Value
This study has three major values. First, it explains the two different levels of the adaptation and evolution process of CSR reporting by bringing a dynamic cross-fertilization view. Second, it provides a qualitative study that focuses on the content of CSR disclosures instead of the quantity of those disclosures. Lastly, it contributes to the academic and practical research on CSR in late-capitalist countries and in two under-researched types of political economies.
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Joonho Moon, Myungkeun Song, Won Seok Lee and Ji Min Shim
This study aims to explore the structural relationship among food quality, usefulness, ease of use, convenience, brand trust and willingness to pay. The technology acceptance…
Abstract
Purpose
This study aims to explore the structural relationship among food quality, usefulness, ease of use, convenience, brand trust and willingness to pay. The technology acceptance model was used as the theoretical foundation of this work.
Design/methodology/approach
Amazon Mechanical Turk was used to recruit survey participants, and 436 valid observations were ultimately used for the analysis. In the data analysis, the structural relationships between variables were explored through structural equation modeling.
Findings
The results of hypothesis testing show that ease of use positively affects the usefulness of the Starbucks mobile application. Usefulness also exerts positive impacts on both brand trust and convenience. Moreover, brand trust is positively associated with food quality. Finally, willingness to pay is positively influenced by both convenience and brand trust.
Originality/value
This study contributes to the literature by not only validating the technology acceptance model using the Starbucks mobile application but also proposing food quality-related attributes in the domain of the café business.