Taehun Kim, Guk Bae Kim, Hyun Kyung Song, Yoon Soo Kyung, Choung-Soo Kim and Namkug Kim
This study aims to systemically evaluate morphological printing errors between computer-aided design (CAD) and reference models fabricated using two different three-dimensional…
Abstract
Purpose
This study aims to systemically evaluate morphological printing errors between computer-aided design (CAD) and reference models fabricated using two different three-dimensional printing (3DP) technologies with hard and soft materials.
Design/methodology/approach
The reference models were designed to ensure simpler and more accurate measurements than those obtained from actual kidney simulators. Three reference models, i.e. cube, dumbbell and simplified kidney, were manufactured using photopolymer jetting (PolyJet) with soft and hard materials and multi-jet printing (MJP) with hard materials. Each reference model was repeatably measured five times using digital calipers for each length. These values were compared with those obtained using CAD.
Findings
The results demonstrate that the cube models with the hard material of MJP and hard and soft materials of PolyJet were smaller (p = 0.022, 0.015 and 0.057, respectively). The dumbbell model with the hard material of MJP was smaller (p = 0.029) and that with the soft material of PolyJet was larger (p = 0.020). However, the dumbbell with the hard material of PolyJet generated low errors (p = 0.065). Finally, the simplified kidney models with the hard material of MJP and soft materials of PolyJet were smaller (p = 0.093 and 0.021) and that with the hard material of PolyJet was opposite to the former models (p = 0.043).
Originality/value
This study, to the best of authors’ knowledge, is the first to determine the accuracy between CAD and reference models fabricated using two different 3DP technologies with multi-materials. Thus, it serves references for surgical applications as simulators and guides that require accuracy.
Details
Keywords
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.
Meanwhile, President Yoon Suk-yeol’s unpopular lame duck presidency has become more tenuous as prosecutors’ investigations continue into both Yoon and his wife, on one side, and…
Details
DOI: 10.1108/OXAN-DB291378
ISSN: 2633-304X
Keywords
Geographic
Topical
The purpose of this paper is to identify the cause how the student movement in South Korea enjoyed the golden age in the 1970–1990s and could not be revived since the late 1990s…
Abstract
Purpose
The purpose of this paper is to identify the cause how the student movement in South Korea enjoyed the golden age in the 1970–1990s and could not be revived since the late 1990s and cannot be played a pivotal role again.
Design/methodology/approach
This study adopts historical analysis as primary methodology, traced the historical evolution of South Korean student activism in the 1970–1990s through analyzing secondary Korean literature and newspaper on the particular struggle cases in the period.
Findings
Social solidarity between society and student had played a pivotal role in the South Korean students' long activism in the struggle of the 1970–1990s. In the 1970–1980s, democratic election and constitutional reform set in the main purpose of struggle that attracted wide support from society and enjoyed maintaining a new member supply and their commitment despite authoritarian government's persistent oppression. When the sixth constitution was passed in 1987 with Democratization, the student decided to choose continuing struggle and set social cooperation with North Korea as the new goal, the sensitive issue in South Korea that confronted fierce criticism. Society chose to withdraw their support to the activism in the Yonsei University incident of 1996, rung a knell of long struggle since the 1970s.
Originality/value
The research identified the cause how South Korean students in university could persist long strike without particular internal resource production during three decades and ended the long struggle in the late 1990s; the existence of social solidarity between student and society was the main reason of continued new member supply and their commitment in the battle.
Details
Keywords
Soo Il Shin, Sumin Han, Kyung Young Lee and Younghoon Chang
The television (TV) content ecosystem has shifted from traditional broadcasting systems to dedicated content producers and over-the-top (OTT) services. However, less empirical…
Abstract
Purpose
The television (TV) content ecosystem has shifted from traditional broadcasting systems to dedicated content producers and over-the-top (OTT) services. However, less empirical effort has been paid to the actual behaviors of the mobile users who watch TV content when explaining the impact of OTT service and mobile network profiles in watching TV content. This study aims to investigate the impact of gratifications and attitude formed by mobile TV users on actual mobile TV watching behaviors, as well as the moderating impacts of paid OTT service subscriptions and mobile network profiles, based on gratification theory, cognition–affect–behavioral (CAB) framework, sunk cost effect and walled-garden effect.
Design/methodology/approach
This study employs the generalized linear model (GLM) with generalized estimating equations (GEE) to test hypothesized relationships. A total of 338 mobile phone users who have been watching TV content using a mobile phone participated in the survey. The moderating variables, 4 types of paid streaming platform subscriptions, were classified based on the walled gardens formed by mobile telecom services.
Findings
The study’s results revealed that obtained gratifications and opportunity constructs substantially influenced a mobile phone user’s attitude and behaviors. Additionally, mobile network profiles and the degree of access to paid platform services played significant moderating roles in the relationship between users’ attitudes and behavior.
Originality/value
This research enriches the existing OTT service literature and is one of the pioneering studies investigating the walled-garden effect’s role in mobile phone users’ actual watching behaviors, offering valuable practical implications for the OTT platform providers.
Details
Keywords
Yonjoo Cho, Jiwon Park, Soo Jeoung “Crystal” Han, Boreum Ju, Jieun You, Ahreum Ju, Chan Kyun Park and Hye Young Park
The purpose of this study was to compare South Korean female executives’ definitions of career success with those of male executives, identify their career development strategies…
Abstract
Purpose
The purpose of this study was to compare South Korean female executives’ definitions of career success with those of male executives, identify their career development strategies for success and provide implications for research and practice. Two research questions guiding our inquiry included: How do female executives’ definitions of career success differ from those of male executives? What career development strategies do male and female executives use for career success?
Design/methodology/approach
A basic qualitative research design was used and semi-structured interviews were conducted with 15 male executives and 15 female executives in diverse corporations by using an interview protocol of 13 questions regarding participants’ background, definitions of career success and final thoughts. To analyze the interview data, we used both NVivo 11 and a manual coding method.
Findings
Gender differences were detected in the participants’ definitions of career success and success factors. As previous studies indicated, male and female executives had different perspectives on career success: men tended to define career success more objectively than women. Many male executives, through experiencing transforming changes in their careers, began to appreciate work–life balance and personal happiness from success. Gender differences were also detected in their career development challenges, meanings of mentors and networking activities. While work stress surfaced as a challenge that men faced, experiencing the token status in the gendered workplace was a major challenge for female participants.
Research limitations/implications
In this study, three research agendas are presented, needing further investigation on career success, women’s token status and comparative analyses.
Practical implications
Three implications for practice have been provided, including organizational support, government’s role and HRD’s role.
Originality/value
Gender differences in this study were not as distinctive as previous literature has indicated. Some male executives valued more subjective career success than others, while a few female executives spoke of more objective definitions than others. These subtle differences could be captured through in-depth interviews. By hearing the participants’ stories, both objective and subjective definitions of success, for both genders, could be observed, which might not have been possible in quantitative research. In addition, the study findings reflect the nature of a uniquely Korean context. The participants worked in a Confucian and military culture, which operates in hierarchical structures and the command and control system, coupled with a heightened camaraderie spirit in the workplace.
Details
Keywords
Soo-yong Byun and Kyung-keun Kim
Increasing income inequality particularly since the economic crisis of 1997 has called attention to the issue of growing educational inequality in South Korea. Although much…
Abstract
Increasing income inequality particularly since the economic crisis of 1997 has called attention to the issue of growing educational inequality in South Korea. Although much recent research has been directed at understanding the socioeconomic gap in academic achievement, few studies have empirically examined how this gap has changed over time during the past decade in South Korea. Using nationally representative data for the most recent three cohorts (1999, 2003, and 2007) of eighth-grade South Korean students from Trends in International Mathematics and Science Study (TIMSS), this study examines trends in the relationship between socioeconomic background and student achievement. The eighth-grade TIMSS data demonstrate that the influence of socioeconomic background on student achievement has increased over time during the past decade, offering evidence of growing educational inequality in South Korea. Various factors may contribute to higher educational inequality, including the widening income gap and recent educational transformations geared toward school choice and tracking.
Soo Jung Lee, Kyung Eun Jahng and Koeun Kim
This paper aims to attend to the issues that remain veiled and excluded in the name of multiculture.
Abstract
Purpose
This paper aims to attend to the issues that remain veiled and excluded in the name of multiculture.
Design/methodology/approach
This paper problematizes South Korean multicultural education policies through Bourdieu’s concept of capital as a theoretical frame.
Findings
First, the paper discusses that material wealth is unequally distributed to most of the multicultural families, resulting in their lack of economic capital. Second, it notes that students from multicultural families are deprived of cultural capital, as they are racialized in Korean society. As a strategy used to distinguish and exclude a so-called different minority from the unnamed majority, race enables the possession of cultural capital. Third, insufficient social capital identified with resources emerging from social networks positions students from multicultural families as a perpetual minority. As the accumulation of various forms of capital secures power and privilege (Bourdieu, 1986), multicultural education in its current state would continuously reproduce the existing power dynamics where students from multicultural families are subordinate.
Research limitations/implications
Given this, policies for multicultural education in South Korea should cover a wide range of issues, including race, class and network and be redesigned to resolve realistic problems that have been hidden under the name of celebration of culture.
Originality/value
The Korean multicultural education policy has not been analyzed through Bourdieu’s concept of capital. Using a different theoretical viewpoint would be valuable to figure out the problems underlying the policy.
Details
Keywords
Jess Browning and Seung-Hee Lee
The Incheon Region has numerous assets that fall within a Pentaport model.' These include the Incheon International Airport, the Port of Incheon, a coastal industrial park, free…
Abstract
The Incheon Region has numerous assets that fall within a Pentaport model.' These include the Incheon International Airport, the Port of Incheon, a coastal industrial park, free economic zones, a leisure port, and Songdo new town designed to be the future Silicon Valley of Korea. This paper looks at how Northeast Asia trade flows between China and Korea might be enhanced by application of the Pentaport model in making the Incheon region a North East Asian Hub. It looks also at their trade and logistics systems as well as their water borne commerce. It proposes an integrated transportation system for the Yellow Sea Region being beneficial to the economies of the Northeast Asia. It also stresses that innovative technologies for ships, terminals and cargo handling systems should be introduced to develop a competitive short sea shipping system in the region and cooperation among the regional countries will be essential to achieve the final goal. The potential of methods of container shipping is discussed as it might apply to short sea shipping in the Yellow Sea Region that could greatly facilitate Incheon's situation with respect to the broader region in application of the Pentaport model.
Details
Keywords
Younghoon Chang, One-Ki Daniel Lee, Jaehyun Park and Juyeon Ham