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윤하정,이윤선,김재준 한국건축시공학회 2013 한국건축시공학회지 Vol.13 No.2
Recently there has been insignificant growth in the Korean construction management (CM) market, in comparison to the previous year. However, despite stagnation or even decreasing growth trends, the number of domestic companies participating in the CM market has increased rapidly. As follows, market movements of CM despite trending in stagnant growth or decrease, the market has been increasing firms which entry the market. The reasons for such dynamic change must be examined first, in order to facilitate analysis of its competitive structure. This study aims to examine the market competition structure and analyze the reason for proliferation of companies in the sick CM market. This study employs market concentration ratio and DEA-based Malmquist productivity indices to analyze the competitive structure of the CM market. Results reveal that the CM market has been monopolized by a few companies,but this is gradually changing. In addition, these companies were not productive, but there has been a gradual increase in the productivity index. Therefore, this study, which provides the direction index of the CM market, has implications for all major stakeholders in this market. 최근 국내 CM(건설사업관리) 시장의 규모는 전년도 대비미비한 성장 추세를 보이고 있다. 반면 CM시장에 참여하기시작한 국내 기업들은 급격히 늘어나고 있어 본 연구에서는CM시장의 경쟁 구조를 분석하기 위해 시장집중도 및 DEA 모형의 Malmquist 생산성을 분석하였다. 그 결과, CM시장은 소수 기업에 의해 독과 점유되고 있으나 점차 완화될 것으로 나타났으며, CM시장과 기업은 생산적이지 못하지만점차 생산성 지수가 상향되고 있다고 나타났다. 이를 통해,본 연구는 CM시장의 이해관계자들에게 CM시장의 경쟁 흐름을 이해할 수 있는 방향 지표를 제공함으로써 시사점을제공하고자 하였다.
윤하정,신애선,박수경,장명진,유근영,Yoon, Ha-Chung,Shin, Ae-Sun,Park, Sue-Kyung,Jang, Myung-Jin,Yoo, Keun-Young 대한예방의학회 2002 예방의학회지 Vol.35 No.3
Objective : This study was aiming at estimating the joint effects of various risk factors associated with uterine cervix cancer in Korea. Methods : Data obtained from a case-control study were analyzed with a multiplicative model. Results : After adjustment for age and husband's educational attainments, the family history of cervical cancer (OR=2.1, 95% CI=1.2-3.9), unstable marital status due to separation, by death or divorce, etc. (OR=2.8, 95% CI=1.7-4.6), and a large number of deliveries ($\geq$3 vs. nulliparous OR=6.5, 55% CI=1.4-29.0) increased the risk of uterine cervix cancer, Conversely, first sexual intercourse at an older age ($\geq$25 years vs. <19 years OR=0.4, 95% CI=0.2-0.6) and husband's circumcision (OR=0.7, 95% CI=0.5-1.0) decreased the risk. In the multiplicative model, the highest joint risk (OR=39.2, 95% CI 5.9-258.9) was observed in women with a family history of uterine cervical cancer, an unstable marital status, where the ex-husband was not circumcised, with 3 or more delivery experiences, and having her first sexual intercourse when younger than 19 years of age. However, women without a family history of uterine cervix cancer, married to a circumcised husband, having had her first sexual intercourse at 25 years or older, and nulliparous, showed the lowest joint effect (OR=0.3, 95% CI=0.1-0.5). Conclusion : As carcinogenesis is a complex action involving various factors, we consider a joint effects approach to be appropriate in an epidemiological study on risk factors for uterine cervix neoplasms cervix neoplasm.
SNS상의 베이커리제품 선택속성이 구매 후 만족과 추천의도에 미치는 영향
윤하정,김호석 한국호텔리조트학회 2020 호텔리조트연구 Vol.19 No.4
The purpose of this study is to identify the optional attributes of consumers using bakery products on SNS and to empirically study the factors that affect their satisfaction and recommendation intentions after purchase. To this end, the concept of each variable was analyzed and understood to find out what the variables were structurally related through a prior study and collected survey data to analyze the facts. For empirical analysis, a total of 321 questionnaires were collected from July 01 to August 15, 2019 by conducting a self-reporting method survey of men and women in their teens and 60s on tourists and Gangneung citizens who had collected and purchased information on bakery products through SNS information. The empirical analysis of the data collected in the survey used the statistical program of SPSS 21.0. The results of the study are summarized as follows. First, the attractiveness, accuracy and uniqueness among the properties of selecting bakery products on SNS were found to have a positive relationship to the satisfaction of purchasing products. Second, the satisfaction level after purchasing bakery products on SNS was found to have a positive influence on the recommendation intention. The results of this study show that the properties of selecting bakery products on SNS represent the defining influence of both satisfaction and recommendation intentions after purchase. Therefore, bakery companies should use SNS as an effective marketing tool, leading to a virtuous cycle of delivering accurate, attractive and unique information to consumers and increasing satisfaction, thereby re-delivering product information on their own.