• Journal of the KSME
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• v.55 no.11
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• pp.34-39
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• 2015

이 글에서는 나노스케일의 직경을 갖는 섬유를 빠른 생산속도로 제작할 수 있는 전기방사공정(electrospinning process)에 대한 개요와 조직공학용 지지체(tissue engineering scaffold)로의 응용을 위한 제조방법에 대해 소개하고자 한다. 세포의 증식, 분화 등의 생물학적 활동에 기반한 조직공학 및 조직재생 분야에서는 일시적 또는 영구적으로 세포가 부착하여 생장할 수 있는 지지체(scaffold)의 활용이 필수적이다. 세포가 이상적으로 성장할 수 있는 지지체를 제작하기 위해서는 세포의 부착 특성, 화학적/물리적/구조적 성장 환경 등이 고려되어야 한다. 따라서 이상적인 세포 성장 환경을 구현하기 위해 실제 세포 주변의 미세환경(microenvironmenr)조건을 모사하는 연구가 많이 이루어지고 있다. 세포외기질(extracellular matrix)이라고 하는 나노크기의 직경을 갖는 섬유기반의 세포 주변 환경을 모사하는 방법의 하나로 전기방사 공정이 '90년대에 들어 활용되기 시작하였다. 현재까지도 전기방사를 이용하여 제작되는 나노섬유는 공정조건 및 재료를 다양하게 응용하여 조직의 물리 화학적 특성을 잘 반영할 수 있는 장점이 있어 조직공학용 지지체로서 광범위하게 활용되고 있다.

• Journal of Digital Convergence
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• v.15 no.5
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• pp.293-303
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• 2017

The purpose of this study was to understand the influences of resilience and perceived individual and organizational support on organizational commitment among Korean clinical nurse. Data were collected from 195 nurses who had worked in 6 hospitals in a province from March 15 to April 27, 2016. The mean organizational commitment score was similar to that of nurses who worked at small or medium sized hospitals in provinces and lower than that of nurses who worked at large sized general hospitals in metropolitan. Regression analysis indicated that factors influencing the participants' organizational commitment were perceived organizational support, resilience, team nursing delivery method, and team-function mixed nursing delivery method. It is needed to establish strategies which can improve organizational commitment of nurses by improving organizational support and the resilience. It should be established hospital policies that can improve nursing delivery methods such as team nursing for improving nurses' perceived organizational support.

• The Journal of the Korea Contents Association
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• v.20 no.11
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• pp.170-183
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• 2020

This study sought to investigate the relationship between emotional labor and commitment to organization of flight attendants as a way to identify solutions for service quality issues attributed to reduced commitment. It was also intended to determine the relational routes in terms of the effects of social support as a supplementary factor in reduced air service quality. A survey was conducted from January 2020 for about one month and a total of 426 copies were used in the final analysis. SPSS 23.0 and AMOS 23.0 statistical programs were used for the data analysis. The results are as follows. First, the emotional labor of flight attendants showed a negative impact on the social support including support from peers, families, and team leaders. Second, support from peers and team leaders had a positive impact on commitment to organization. Third, the emotional labor of flight attendants showed a negative impact on their commitment to organization. Fourth, support from peers and team leaders were found to have a mediated effect on the relationship between emotional labor and commitment to organization.

• Journal of Navigation and Port Research
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• v.35 no.10
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• pp.829-836
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• 2011

This study aims to empirically identify how the antecedents of seafarers' social identity(i.e., socialization, social support, perceived organizational support, status in organization) affect turnover intention via social identity. In order to achieve this objective, this study conducted covariance structure analysis on the questionnaire data collected from 362 seafarers. The main results are as follows: First of all, as social identity of seafarers increases, their turnover intention decreases. Secondly, as socialization, social support, and perceived organizational support increases, seafarers' social identity also increases. Finally, while socialization and social support decrease turnover intention only through social identity, perceived organizational support decreases turnover intention both directly and indirectly via social identity.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.15 no.3
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• pp.191-206
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• 2020

Although several studies have been conducted on unification and the life of North Korean refugees, there have been few studies comparing the characteristics of North Korean refugees with South Korean workers, in terms of human resources in business administration. By considering the limitations of these prior studies, this study analyzed whether there are differences in factors affecting organizational commitment and turnover intention through a group comparative analysis between North Korean refugees and South Korean workers. For a comparative analysis between the two groups, we recruited 145 workers from North Korea and 213 South Korea-born workers. We found the following results with a multi-group structural equation model. We confirmed the measurement homogeneity by ensuring that both groups were equally aware of the measurement tools affecting organizational commitment and turnover intentions. As a result of testing the homogeneity of measurement, we also confirmed that there was a significant difference in optimism between the two groups; optimism affects organizational commitment and among social supports, affectionate support and interaction support affect organizational commitment. Analyzing the path between the two groups, we first were able to find that optimism influenced organizational commitment for both groups, in relation to positive psychological capital. However, in terms of degree, South Korean workers were found to be strongly affected. Second, with regard to social support, we were not able to find that affectionate support and interaction support have a significant impact on organizational commitment for South Korean workers, while for North Korean refugees, we confirmed that both supports have a significant impact. Third, we were unable to find any differences between the two group, in terms of other sub-components of positive psychological capital (self-efficacy, hope, and resiliency) or the sub-components of social support (informational support, tangible support). These results suggest that companies or managers employing North Korean refugee workers need to create an organizational environment that allows them to perceive social support, especially affectionate support and interaction support.

• The Journal of the Korea Contents Association
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• v.11 no.9
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• pp.187-201
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• 2011

A need for considering effective human resources management, in addition to the social aspect of foreign workers, has been rising as the number of foreign workers increased. This study was designed to figure out effective ways to manage foreign workers. By examining an effect of acculturation and organizational fairness on the organizational commitment of foreign laborers and moderating effects of social support, this study aims to improve their commitment, sense of belonging, and loyalty to the company. The results are as follows. Acculturation and organizational fairness has a positive effect on organizational commitment. To be specific, distribution impartiality has the strongest influence on normative commitment, and interactional justice has an effect on emotional commitment and continuous commitment the most, and a partial effect on the moderating effects of social support. Therefore, to improve productivity of foreign laborers, organizational commitment of foreign workers should be reinforced and to achieve this, acculturation and organizational fairness need to be enhanced, and there should be measures to strengthen social support for them.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.444-455
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• 2018

This empirical study examined the relationships among emotional labor, social support, and organizational commitment of franchise food service industry employees, and analyzed the mediating effects of social support from the fellow and director on the relationship between emotional labor and organizational commitment. A total of 268 employees in the franchise food service industry, such as fast food, chicken, and coffee in Seoul, were analyzed by frequency analysis, reliability analysis, correlation analysis, confirmatory factor analysis, and structural equation model analysis using the SPSS Program. The results of verifying the research hypotheses could be summarized as follows. First, the surface emotional labor of franchise food service industry employees had negative effects on the organizational commitment. Deep emotional labor had significant positive effects on the organizational commitment, and fellow and director support had significant positive effects on the organizational commitment. Second, the social support from the fellow and director had partially mediating effects on the relationship between emotional labor and organizational commitment. This suggests that emotional labor and social support play essential roles in enhancing the organizational commitment of franchise food service industry employees.

• Proceedings of the Materials Research Society of Korea Conference
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• 2009.05a
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• pp.47.2-47.2
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• 2009

인체의 뼈와 같은 손상된 경조직을 치료 또는 대체하기위한 정형외과용 임플란트를 설계하는데 있어 뼈의 생체역학적 특성과 유사한 성질을 갖는 다공성 지지체에 대한 연구가 최근 관심을 끌고 있다. 다공성 지지체는 조직이 원활히 재생될 수 있어야 하며, 또한 주변 조직과도 생물학적인 고착이 잘 되도록 기공들이 상호 연결된 구조를 가져야 한다. 이와 같은 다공성 지지체용 소재를 제조하기 위하여 본 연구에서는 타이타늄 분말을 사용하여 3차원 적층조형공정으로 다공성 타이타늄 지지체를 제조하였다. 제조된 다공체의 물성 및 기계적 특성을 평가하기 위하여 압축시험과 변형해석을 수행하였으며, 아울러 제조된 지지체의 생체적합성 향상을 위하여 양극산화 공정 등의 표면처리를 수행하여 그에 대한 특성을 평가하였다. 분말야금 공정으로 제조된 지지체는 골조직의 성장에 적합한 약 $300\sim400{\mu}m$의 기공 크기를 갖도록 제어하였고, 기공도는 60~75%로 제어하였다. 아울러 다공성 타이타늄의 생체적합성을 부여하기 위하여 양극산화공정으로 지지체의 표면에 Ca 및 P을 포함하는 산화층을 형성시키는 표면처리를 수행하였다. 양극산화공정에 의하여 표면에 미세기공을 포함하는 산화층을 형성시킬 수 있었으나 이와 같은 표면구조는 조골세포의 부착과 영향에는 큰 영향을 미치지 않는 것으로 확인되었다.

• Asia Marketing Journal
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• v.1 no.3
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• pp.109-119
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• 1999

서비스마케팅에 있어서 종업원의 행동통제와 결과통제에 대한 중요성이 증대하고 있다. 그 중에서 행동통제를 보다 효율적으로하기 위하여 많은 연구가 진행되고 있다. 본 연구는 마케팅조직 종업원의 행동통제 지각이 조직내 종업원이 행동에 어떠한 영향을 주는지를 조사하였다. 종업원이 느끼는 통제지각, 상사의 피드백, 비금전적 보상 그리고 종업원의 역기능 행동 간의 다섯가지 관계에 대하여 가설이 설정되었다. 병원간호사 120 명의 설문응답에 근거하여서 가설검증을 하였다. 다섯 개의 가설중 세 개는 지지되었고, 두 개의 가설은 현재의 자료로는 지지되지 않았다. 가설검증 결과에 근거하여서 시사점과 결론이 제시되었다.

• Fire Science and Engineering
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• v.28 no.6
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• pp.99-107
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• 2014

Author analyzed the relationship among job stressors, job satisfaction, and organizational commitment of police officials. And the Author analyzed the moderating effect of social support on the relationship between job stressors, job satisfaction, and organizational commitment. First, I found that job stressors associated with characteristics of the job or the organization affect job satisfaction and organizational commitment. Job stressors significantly affecting job satisfaction were found to be perceived uncontrol and role ambiguity. Second, the job satisfaction's impact on organizational commitment in the impact relationship was significantly very large. Third, despite the role overload, the group with a high social support had a high job satisfaction. In addition, if there is high level of social support, job satisfaction could significantly increase organizational commitment.