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Impatience 특성을 고려한 군 긴급정비시스템 정비인력 최적할당 연구
김성우,Kim, Sungwoo 한국군사과학기술학회 2021 한국군사과학기술학회지 Vol.24 No.4
Impatience characteristics are an important factor to be considered in the defense field, which is sensitive to time, but there are not many cases applied. In addition, due to the difficulty of analysis that must consider various probabilistic factors (breakdown/maintenance distribution, impatience characteristics, etc.), military decision makers consider only simple data (number of occurrences per year, maintenance time, etc.) Therefore, in this study, a model capable of analyzing the performance of the emergency maintenance system for determining the appropriate size and organization of military and civilian maintenance personnel was presented in consideration of impatience characteristics and probabilistic factors. And through numerical analysis, the appropriate size of the military and civilian emergency maintenance teams was analyzed. This study is significant in that it can improve readiness of operational power and prevent waste of defense budget through efficient operation of the military's emergency maintenance system.
창업·취업교육이 대학생의 창업·취업의도 영향요인에 미치는 효과
김성우,강민형,Kim, Sungwoo,Kang, Minhyung 한국공학교육학회 2016 공학교육연구 Vol.19 No.4
This paper explores antecedents of entrepreneurial and job search intentions based on the theory of planned behavior. Additionally, it examines the impact of entrepreneurship and job search education on these antecedents of entrepreneurial and job search intentions. The research model has been validated by analyzing 1,432 responses from undergraduate students in South Korea. The results of analysis provide several findings: First, entrepreneurship attitude, entrepreneurship subjective norm, and entrepreneurship self efficacy showed significant positive effects on entrepreneurial intention, but their effects on job search intention were insignificant. Second, while job search attitude showed significant positive effects on both intentions, job search subjective norm showed a significant effect only on job search intention, and job search self efficacy showed a significant effect only on entrepreneurial intention. Third, entrepreneurship education increased all the antecedents of entrepreneurial intention, and reduced job search attitude. These results imply that entrepreneurship and job search education should be managed comprehensively, considering their cross-effects on the antecedents of entrepreneurial and job search intentions.
Brick and Mortar: The role of granules in skin barriers
김성우 ( Sungwoo Kim ),( Sekyoo Jeong ),( Hyunjung Kim ) 한국피부장벽학회 2022 한국피부장벽학회지 Vol.24 No.1
The skin is the outermost barrier organ that protects the body from the loss of moisture from the body and entry of various external factors. The normally differentiated stratum corneum not only serves for these crucial barrier functions, but also modulates the functions, roles, and structures of the viable epidermal and the dermal layers. Stratum corneum as a permeability barrier is commonly described as having the “brick and mortar” structure, which designates the corneocytes and the intercellular lipids. Successful formation of this brick and mortar requires a lot of complex and well organized cellular events, simply termed as terminal differentiation. In this presentation, two types of micro-organelles formed by epidermal keratinocyte during the terminal differentiation, keratohyalin granules and lamella body, and their roles in making the brick and mortar structure. Because these granules serve as carriers that supply various materials necessary for brick and mortar, either abnormal formation of granules and/or inappropriate delivery of their contents can result in a failure to establishing the mandatory skin barrier functions, ultimately cause skin diseases. It will be briefly reviewed the journey of granules making the brick and mortar structure, and the barrier products based on them.
김성우(Sungwoo Kim),김성천(Sungchon Kim) 한국정보과학회 1996 한국정보과학회 학술발표논문집 Vol.23 No.1A
본 논문에서는 일반 다단계 상호 연결망에 하드웨어 복잡도가 낮은 분배기를 적용시켜 패킷들의 높은 처리율과 낮은 지연시간을 갖는 다단계 상호 연결망을 제안한다. 제안된 네트워크는 분배기를 통한 대체 경로를 제공함으로써 네트워크 상의 통신을 균일 분포에 가깝게 분포시킨다. 또한 기존의 분배기를 사용한 네트워크가 갖지 못하는 네트워크의 오류 허용을 제공한다. 시뮬레이션을 통한 성능 평가 결과, 시스템의 성능면에서 기존 네트워크에 대해 정규 처리율을 약 10% 향상되었으며 정규 지연 시간은 약 30% 감소하였다. 오류 허용 시(오류 발생 10%)에도 정규 처리율은 약 70% 로써 오류가 발생하지 않은 경우(정규 처리율 약 90%)에 비해 만족할 만한 성능을 제공하였다.