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Article
Publication date: 17 August 2000

Jae Joo Kim, Hai Sung Jeong and Myung Hwan Na

The problem of trend change in the failure rate is great interest in the reliability and survival analysis. In this paper we develop a test statistic for testing whether or not…

Abstract

The problem of trend change in the failure rate is great interest in the reliability and survival analysis. In this paper we develop a test statistic for testing whether or not the failure rate changes its trend using random censored date. The sasymptotic normality of the test statistic is established. The efficiency values of loss due to censoring are discussed.

Details

Asian Journal on Quality, vol. 1 no. 1
Type: Research Article
ISSN: 1598-2688

Keywords

Article
Publication date: 10 February 2022

Seungmug (Zech) Lee, Jae-Jin Joo, Hye-Rim Kwon, Jae-Seung Lee and John J. Rodriguez

This study aims examine to what extent four variable categories of individual ethical ideology, organizational ethical culture, superior's ethical quality and job satisfaction…

Abstract

Purpose

This study aims examine to what extent four variable categories of individual ethical ideology, organizational ethical culture, superior's ethical quality and job satisfaction (JS) are causally linked to personal (un)ethical behaviors among South Korean police officers.

Design/methodology/approach

With a stratified sampling technique, 687 surveys were collected from 16 major local police headquarters across the nation. The reliability and validity of the variables were checked. The structural equation modeling (SEM) is used to test the hypotheses.

Findings

Idealism, principlism, utilitarianism and JS have a negative influence on unethical behaviors, whereas superior's unethical standards are positively associated with unethical behaviors.

Practical implications

The findings can be applied as a reference to improve ethical framework to promote behaviors by enriching the higher level of personal ethical ideology, superior's ethical quality and principlism and utilitarianism by adding an ethics training course to the continuing education program for all officers and developing further education programs for police leadership to raise ethical awareness and quality.

Originality/value

To the authors' knowledge, the study is among the first studies with four comprehensive categories of relevant variables and adds understanding to (un)ethical behaviors of police officers.

Details

Policing: An International Journal, vol. 45 no. 2
Type: Research Article
ISSN: 1363-951X

Keywords

Article
Publication date: 14 November 2016

Mark A. Bonn, Meehee Cho, Jun Jae Lee and Joo Hyang Kim

The purpose of this study was conducted to investigate the moderating effects wine destination attributes have upon the negative impacts of travel constraints on consumer’s intent…

1626

Abstract

Purpose

The purpose of this study was conducted to investigate the moderating effects wine destination attributes have upon the negative impacts of travel constraints on consumer’s intent to revisit wine regions and also assist wine destinations with the development of marketing strategies designed to offset travel constraints which then could lead to increased intentions to revisit wine regions.

Design/methodology/approach

A sampling frame was designed to collect data from consumers visiting 15 wineries using a list of wineries provided by an industry distributor. Self-administered on-site surveys were distributed to visitors during random days and times at each site. To effectively analyze this study’s data set, hierarchical linear models were developed to test our main research question suggesting the significant cross-level effects wine destination attributes (at the regional level) have upon travel constraints in combination with revisit intention (at the individual level).

Findings

The negative impact of the “structural” constraints’ dimension on revisit intention is weaker when people are emotionally attracted to a specific wine destination and/or when wine-specific attractions appeal strongly to visitors. Additionally, the negative impact of the “intrapersonal” constraints on “revisit intention” is weaker when positive perceptions about “wine-specific attractions” and/or “tourism infrastructure” attributes are strong.

Practical implications

Results provide strategic directions for wine destination marketing organizations to more accurately improve their destination’s reputation by determining and establishing the most attractive wine-specific attributes as perceived by visitors. Findings also assist these destinations to develop and provide appropriate tourism infrastructure.

Originality/value

This study investigated the effects of wine destination attributes and their attractiveness upon an individual’s travel constraints and revisit intention using a multilevel approach incorporating a regional-based perspective.

Details

International Journal of Contemporary Hospitality Management, vol. 28 no. 11
Type: Research Article
ISSN: 0959-6119

Keywords

Article
Publication date: 24 March 2022

Sangok Yoo, Baek-Kyoo (Brian) Joo and Jae Hang Noh

The purposes of the study are to examine the relationships between team emergent states (TES) (i.e. compelling direction, team identity and psychological safety) and team…

1094

Abstract

Purpose

The purposes of the study are to examine the relationships between team emergent states (TES) (i.e. compelling direction, team identity and psychological safety) and team effectiveness outcomes (i.e. team performance, team satisfaction and growth experience), and investigate the mediating role of knowledge sharing and the moderating role of inclusive leadership in those relationships.

Design/methodology/approach

This study employed hierarchical multiple regression analysis and bootstrap analyses to test the hypotheses by using data from 73 teams in eight South Korean firms.

Findings

Psychological safety was found to be a significant TES for team effectiveness outcomes. Knowledge sharing mediated the relationship between TES and team effectiveness. Lastly, inclusive leadership positively moderated (1) team identity-knowledge sharing; (2) psychological safety-knowledge sharing; and (3) team identity-team performance relationships.

Practical implications

The authors’ findings suggest that managers cultivate a psychologically safe team climate and show inclusiveness to build successful teams. This study also emphasizes the importance of knowledge sharing to turn positive TES into team effectiveness.

Originality/value

From a comprehensive perspective, the findings show the detailed mechanism in which TES relate to team effectiveness mediated by knowledge sharing. In particular, the authors' endeavor further determines the different roles of inclusive leadership, as a boundary condition, in the mechanism.

Details

Journal of Organizational Effectiveness: People and Performance, vol. 9 no. 3
Type: Research Article
ISSN: 2051-6614

Keywords

Article
Publication date: 3 June 2020

Sun Kyung Yoon, Jae Hyun Kim, Jung Eun Park, Chan Ju Kim and Ji Hoon Song

The purpose of this study is to examine the influences of creativity, psychological ownership (PO) and perceived organizational support (POS) on knowledge creation, using the…

1235

Abstract

Purpose

The purpose of this study is to examine the influences of creativity, psychological ownership (PO) and perceived organizational support (POS) on knowledge creation, using the integrative systems model of creativity.

Design/methodology/approach

A survey was used to collect data from 188 workers in Korean public service organizations. Analyses, including bootstrapping and hierarchical regression analysis, were performed to determine the mediating effect of PO and also the moderating and the moderated mediating effects of POS.

Findings

The results showed that PO mediates partially between creativity and knowledge creation and that POS moderates the relationship between PO and knowledge creation. Notably, the moderated mediating effect of POS was only significant when employees had a high level of POS.

Practical implications

The findings suggest that creativity dissemination requires employees’ social consciousness, collaborative interactions and organizational support. The results imply that human resource development (HRD) practitioners need to cultivate the creativity capacity in the organization.

Originality/value

This study discusses the effects of PO and POS on creative performance, which HRD professionals and organizational leaders draw attention to for organizational development. Implications for organizational composition and interventions to enhance creative performance are provided.

Details

European Journal of Training and Development, vol. 44 no. 6/7
Type: Research Article
ISSN: 2046-9012

Keywords

Book part
Publication date: 28 August 2015

Jose Guerra Vio

This chapter focuses on South Korea’s newly found regional leadership, as the emergent middle power of East Asia, in order to advance regional integration and…

Abstract

This chapter focuses on South Korea’s newly found regional leadership, as the emergent middle power of East Asia, in order to advance regional integration and institution-building. Policy leadership is observed and analyzed from an international lens, linked to the literature of middle powers. The chapter first conceptualizes middle powers in connection with the issue of international leadership, since such states often play important roles in promoting cooperation. The chapter looks especially into South Korea’s foreign policy behavior toward East Asian regional processes and how it has manifested innovative and capable leadership. More specifically, the last three presidencies of Kim Dae-jung (1998–2002), Roh Moo-hyun (2003–2008), and Lee Myung-bak (2008–2013) are scrutinized in the hope of underscoring how their particular administrations, political leadership, and strategic approaches to foreign policy toward the region influenced South Korea’s regional leadership attempts and middle power status.

Details

Asian Leadership in Policy and Governance
Type: Book
ISBN: 978-1-78441-883-0

Keywords

Article
Publication date: 1 January 2014

Banu Poobalan, Jeong Hyun Moon, Sang-Cheol Kim, Sung-Jae Joo, Wook Bahng, In Ho Kang, Nam-Kyun Kim and Kuan Yew Cheong

The high density of defects mainly attributed to the presence of silicon oxycarbides, residual C clusters, Si- and C-dangling bonds at or near the SiO2/SiC interface degrades the…

Abstract

Purpose

The high density of defects mainly attributed to the presence of silicon oxycarbides, residual C clusters, Si- and C-dangling bonds at or near the SiO2/SiC interface degrades the performance of metal-oxide-semiconductor (MOS) devices. In the effort of further improving the quality and enhancement of the SiC oxides thickness, post-oxidation annealed by a combination of nitric acid (HNO3) and water (H2O) vapor technique on thermally grown wet-oxides is introduced in this work. The paper aims to discuss these issues.

Design/methodology/approach

A new technique of post-oxidation annealing (POA) on wet-oxidized n-type 4H-SiC in a combination of HNO3 and H2O vapor at various heating temperatures (70°C, 90°C and 110°C) of HNO3 solution has been introduced in this work.

Findings

It has been revealed that the samples annealed in HNO3 + H2O vapour ambient by various heating temperatures of HNO3 solution; particularly at 110°C is able to produce oxide with lower interface-state density and higher breakdown voltage as compared to wet-oxidized sample annealed in N2 ambient. The substrate properties upon oxide removal show surface roughness reduces as the heating temperature of HNO3 solution increases, which is mainly attributed due to the significant reduction of carbon content at the SiC/SiO2 interface by C=N passivation and CO or CO2 out-diffusion.

Originality/value

Despite being as a strong oxidizing agent, vaporized HNO3 can also be utilized as nitridation and hydrogen passivation agent in high temperature thermal oxidation ambient and these advantages were demonstrated in 4H-SiC.

Details

Microelectronics International, vol. 31 no. 1
Type: Research Article
ISSN: 1356-5362

Keywords

Abstract

Details

Transformation of Korean Politics and Administration: A 30 Year Retrospective
Type: Book
ISBN: 978-1-80382-116-0

Article
Publication date: 14 June 2011

Joo‐Young Lee, Eun‐Sook Ko, Hyo‐Hyun Lee, Jae‐Young Kim and Jeong‐Wha Choi

The purpose of this paper is to examine differences between thermal insulation calculated by a global and a serial method using a thermal manikin, in comparison with human trials.

Abstract

Purpose

The purpose of this paper is to examine differences between thermal insulation calculated by a global and a serial method using a thermal manikin, in comparison with human trials.

Design/methodology/approach

A total of 150 single garments and 38 clothing ensembles were assessed using the manikin; 26 seasonal clothing ensembles were selected for human trials.

Findings

The results showed that total insulation of single garments was 16 percent higher in the serial method than in the global method. The difference was higher in garments with smaller covering area per unit garment mass (e.g. winter garments). For seasonal clothing ensembles, the serial values were 39.2 percent (0.18 clo) for spring/fall wear, 62.6 percent (0.15 clo) for summer wear and for winter wear 64.8 percent (0.69 clo) greater than the global values. The clothing insulation by the global method was systemically lower in all 26 seasonal ensembles than values by human trials, which suggests that the values by the global calculation can be more accurately corrected with human testing data.

Originality/value

The paper shows that values by the serial calculation were lower in spring/fall and summer ensembles but greater in winter garments than values collated by human trials. It suggests that the serial values had a lower validity when compared with thermal insulation values collated from human trials.

Details

International Journal of Clothing Science and Technology, vol. 23 no. 2/3
Type: Research Article
ISSN: 0955-6222

Keywords

Open Access
Article
Publication date: 30 June 2011

Hyung-Geun Kim

China is currently developing and promoting an industrial cluster policy at the government level. By enacting the ‘Opinion on promoting industrial cluster development’, China is…

Abstract

China is currently developing and promoting an industrial cluster policy at the government level. By enacting the ‘Opinion on promoting industrial cluster development’, China is supporting the development of industrial clusters. Building an industrial cluster is done by using a single factor but requires many additional factors like regional characteristics, competitiveness factors are also diversified. To evaluate the competitiveness of the Chinese automobile industry cluster, a competitiveness element index should be developed and a competitiveness evaluation method is needed to evaluate the importance of each element. To accomplish this objective, this research applied the analytic hierarchy process (AHP) and focused on the importance of the competitiveness elements.

This research investigated the character is tics regarding cases of clusters and also analyzed the competitiveness of the Changchun automobile cluster located in northeastern China. The purpose of this research is to help Korean enterprises who enter China in the hopes that Korea will emerge as a top automobile production country.

Details

Journal of International Logistics and Trade, vol. 9 no. 1
Type: Research Article
ISSN: 1738-2122

Keywords

1 – 10 of 24