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이현찬,이철동,Lee, Hyeon-Chan,Lee, Cheol-Dong 한국전자통신연구원 1989 전자통신 Vol.11 No.1
We developed new quadtree and octree representation schemes which reduce the storage requirements from exponential to polynomial. The new schemes not only lessen the large storage requirements of the existing quadtree and octree representation schemes but guarantee an exact representation of the original object. These are made possible by adopting a new set of termination conditions that ensure finiteness of the quadtree and octree during the decomposition. These new data structures are analyzed theoretically and tested empirically. For space complexity, we analyzed its best case, worst case, and average case. Given an $n_e$-gon, we show that the expected number of nodes in our quadtree isO($$$n_e^1.292$) For a polyhedron with $n_f$ faces, the expected number of nodes in the new octree is O($$$n_f^1.667$). For time complexity, we again analyzed the best, worst, and average cases for constructing such quadtree and octree and find the average to be the same as those of the space complexity. Finally, random $n_e$- gons are generated as test data. Regression equations are fitted and are shown to support the claims on the average case performance.
관광기업의 내부마케팅이 종사원 만족에 미치는 영향 : 부산지역 호텔기업을 중심으로
이현찬(Lee, Hyunchan),양위주(Yhang, Wiijoo) 대한관광경영학회 2019 觀光硏究 Vol.34 No.5
본 연구의 목적은 호텔기업의 내부마케팅이 내부고객인 종사원 만족에 미치는 영향을 검증하고자 하였다. 내부마케팅 속성에 관한 연구는 그동안 이루어져 왔으나, 대부분의 선행연 구는 내부마케팅 속성의 선행변수에 대한 가설을 지지하는 연구가 부분적이고 제한적으로 이루어져 포괄적인 분석은 다소 미흡한 실정이다. 이러한 관점에서 본 연구는 그동안 국내 에서 발표된 선행연구 중 종사원 만족에 긍정적인 영향을 미치는 중요한 선행요인인 내부마 케팅을 특정하는 속성의 주요 선행변수 6개를 확인하여 부산지역 호텔기업의 종사원을 대상 으로 표본을 구성하였다. 배부된 254매 설문지 중 사용이 불성실한 설문지를 제외한 후 240 매 설문지를 사용하였다. 또한 SPSS 23.0 통계패키지를 사용하여 빈도분석, 요인분석, 상관 관계분석, 회귀분석을 이용하여 분석하였다. 연구결과 호텔기업의 내부마케팅의 6가지 변수중 내부커뮤니케이션을 제외한 5가지 변수인 교육훈련, 보상, 권한위임, 복리후생, 경영층 지원은 종사원 만족에 정(+)의 유의한 영향을 미치는 것으로 나타나 가설은 부분 채택되었다. 이러한 실증분석 결과를 기준으로 호텔기업은 종사원 간의 상생 관계를 규명하는 연구자료의 제공과 이론 및 실무적 시사점을 도출하고 향후 연구 방향을 제시하고자 한다. This study analyzes the effects of internal marketing for satisfaction employee, who are internal customers, in hotel companies. Researches on attributes of internal marketing has been conducted, however, most prior researches show partial limitation of support for the hypothesis of leading variables in internal marketing attributes, which shows comprehensive analyses are rather inadequate. In this aspect, this study identified six primary leading variables that specify internal marketing, which important precedence factors for positive impact on employee satisfaction, among prior researches published in Korea. For this study, the sample is composed of employees of hotel industry in Busan. Total 254 questionnaires were distributed and 240 reliable questionnaires were finally used for the analysis after removed the unfaithful one. The study analyzed the exploratory factors, frequency analysis, factor analysis, reliability analysis, correlation analysis and multiple return analysis with the SPSS 23.0 statistical package software. The hypothesis was partially adopted by the result that out of the six variables of internal marketing of hotel companies, five sub elements of internal marketing such as educational training, management support, reward, empowerment and welfare, excluding internal communication, have an important and positive effect on employee satisfaction. based on the results of this empirical analysis, this study provide research data to establish the win-win relationship between employees of hotel companies, deriving theoretical and practical implications and suggests future study directions.
건강기능식품 사례를 통한 대량 맞춤생산 도입 대안 비교 평가 연구
이현찬(Hyun Chan Lee),전성재(Seongjae Jeon) (사)한국CDE학회 2009 한국CDE학회 논문집 Vol.14 No.3
Mass customization (MC) is a business practice that aims to provide customers with customized products and services at near mass production efficiency. To achieve the aim, a number of methods to implementing MC are proposed. However, most of them require changes in entire process of the company, which make companies hesitate to implement MC even if it is essential to survive. In this paper, we proposed alternatives to partially implement MC for quick adaptation of MC. The base line assumption is not to change the production lines. The pros and cons of alternatives are given by qualitative and quantitative evaluation. Especially, by giving radar chart analysis of the quantitative measures, we give insight on the changes in the business performance measures, such as time to market and cost. Proposed alternatives are based on sub-processes such as purchasing raw materials, production process changes and packaging for efficient logistics. In this way, companies are able to provide customized products with small changing of the current manufacturing system. The process and benefit of the proposed strategy is verified by real world cases of a Korean health food company.