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정혜영,정희경,서용한,오희선,이명희 한국의류산업학회 2004 한국의류산업학회지 Vol.6 No.1
Costume plays have been of interest to young people in the recent years. The much increased interest in costume plays has prompted many researchers to verify the behavior characteristics of costume players Despite the importance of the costume play, there has been no systematic study of it. The purpose of this study is to demonstrate the influence of life style on behavior characteristics of the costume player. The subjects of this study were members of the web sits(wwwcosmakercom). A total of 155 subjects responded to the questionnaires and the 143 responses were used for further data analysis. The data was analyzed by factor analysis, cluster analysis, and one-way ANOVA. These were the results of the stud: First, costume player groups are classified into three sub-dimensions: other people-oriented, show-off oriented, and exclusive ego oriented. Second, the behavior characteristics of costume player are significantly shown among those groups.
차용훈,김덕중,이연신,채경수,성백섭,박회식 조선대학교 동력자원연구소 1997 動力資源硏究所誌 Vol.19 No.1
The objective of this thesis is to investigate the influence of the initial residual stress on the fatigue crack growth after the distribution of the initial residual stress is measured when the crack is growing from the compressive residual stress to the tensile residual stress field. In the case of as welded material, respective of load ratio, the span of the fatigue is the shortest in base metal, while in weld metal and HAZ, the crack growth was retarded due to the effect of the compressive residual stress at the crack tip as well as the span of the crack is longer than base metal. In region II that is in stable growth state of the fatigue crack, da/dN=C(ΔK)^m of power law was satisfied. Also, it was considered that the value of m is not affected by residual stress. Superimposing welding residual stress intensity factor K_res on ΔK, the value of ΔK_eff calculated was lower than ΔK in the same value of da/dN, while the ΔK_eff is almost the same at the high ΔK.
박혜경(Hea-Kyeong Park),이만희(Man-Hee Lee),유관우(Kwan-Woo Ryu) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅰ
합병 문제는 정렬된 두 개의 리스트 A=(a₁, a₂,..., a₁)와 B=(b₁, b₂,..., b_m)가 주어질 때, 이 두 리스트를 합병하여 하나의 정렬된 리스트 C=(c₁, c₂,..., c_n), n=l+m,로 만드는 문제이다. 지금까지는 √n×√n 메쉬 상에서 odd-even 합병을 재귀적으로 수행하는 O(√n)시간 합병 알고리즘이 주로 사용되었는데, 이 재귀적 합병 알고리즘은 그 기본정책은 간단하나, 메쉬 상에 구현될 때 라우팅과 같은 복잡한 연산이 필요하게 된다. 따라서 본 논문에서는 간단한 행, 열 연산 만을 사용하여 메쉬 상에서 쉽게 구현가능한 O(√n)시간의 최적 분할 합병 알고리즘을 제안한다.
Engestrom의 활동이론 관점에서 바라본 자생적 도시마을공동체 활동체계들 간의 역학적 관계 및 참여자의 학습경험 탐색
정혜경 ( Jeong Hea Kyeong ),전주성 ( Jun Jusung ) 인하대학교 교육연구소 2016 교육문화연구 Vol.22 No.6
이 연구의 목적은 Engestrom의 활동이론 관점에서 자생적 도시마을공동체 활동체계들 간의 역학관계와 참여자들의 학습경험 특성을 탐색하는 데 있다. 이 연구는 사례연구방법을 이용하여 수행되었으며, 연구사이트는 저소득 맞벌이 가정 및 조손 가정으로 인하여 방치된 아이들의 수가 서울시 평균 이상인 서울 목2동이다. 연구사례는 9개의 활동체계들이다. 연구자료는 심층인터뷰, 직접관찰, 온오프 문서자료 등을 활용하였다. 연구결론은 다음과 같다. 첫째, 도시마을 공동체성의 회복에 각 활동체계들의 협력적 상호작용이 매우 중요하다. 둘째, 자생적 마을공동체 활동체계 참여자들의 학습은 근본적으로 개인행동의 변화보다는 집단적 차원의 활동 목표, 문제영역 혹은 대상의 확장적 변화를 이끈 확장학습(expansive learning)의 특성을 갖는다. The purpose of this study was to explore the dynamic relationship among self-sustainable urban communities and learning experience of the participants from Engestrom`s activity theory perspective. This study was conducted using a case study. For this, Mok 2-Dong of Seoul was selected for the research site and the cases were 9 activity systems (self-sustainable urban communities). To collect research data, in-depth interview, direct/indirect observation, and collection of document were used. The data were analyzed by constant comparative analysis. The research conclusions were as follows: First, cooperative interaction among activity systems was significant to restore the community spirit of urban communities. Second, the characteristics of learning experience that the subjects of the 9 activity systems showed was expansive learning leading extensive changes rather than personal behaviors.
Jae-Kyoung Shim,Kyeong-Yeoll Lee,Hea-Son Bang 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.10
Diapause duration of Paratlanticus ussuriensis is prolonged as an egg that enter both initial and final diapause stgaes. Environmental conditions, such as temperature, can modify the duration of initial diapause. Eggs enter initial diapause at 20℃, but continued early embryonic development at 30℃. Final diapause at a fully developed embryonic stage is obligatory regardless of temperature conditions. To determine temperature effects on initial diapause mechanism of P. ussuriensis eggs, we compared weights, DNA and RNA amounts of eggs incubated at either 20℃ or 30℃ for 50 days after oviposition. We identified small heat shock protein (shsp), heat shock protein 90 (hsp90) and three heat shock protein 70 (hsp70a, hap70b, hsp70c) genes of P. ussuriensis and determined those expression levels at different temperature conditions. The levels of shsp, hsp70a, hsp70b and hsp90 was not detectable until 20 days after oviposition at both temperature conditions, but highly increased at 50 and 60 days when incubated at 30℃. In contrast, hsp70c level was rapidly peaked at 20 days after oviposition, which is the time of initial diapause entrance. We analysis of temperature sensitivity of P. ussuriensis eggs. Hsp70a is expressed after the first cold treatment of mature eggs. Hsp70b is highly expressed just before hatching. Both shsp and hsp70c was highly expressed at the heat shock condition into immature egg stage. Our results suggest that high temperature breakdown initial diapause and one hsp gene, such as hsp70c, may be involved into the mechanism of initial diapause of P. ussuriensis eggs.
( Hea Yon Lee ),( Chin Kook Rhee ),( Kyung Hoon Min ),( Kyeong Man Jeon ) 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.1
To find prognostic factors for intensive care unit (ICU) days in patients with acute eosinophilic pneumonia (AEP). Method: Consecutive patients who were diagnosed as AEP were enrolled. Clinical parameters of patients were collected. The diagnosis and treatment was according to standardized protocol. Result: From May 2007 to October 2010, 138 patients were diagnosed. Ninety-eight percent of patients were smoking related. Mean age was 20.21±0.09 (mean±SEM) years. The initial PaO2/FiO2 (PF) ratio was 281.94±6.22. Peripheral blood (PB) eosinophil was 4.37±0.39 % and bronchoalveolar lavage (BAL) eosinophil was 44.98±1.23 %. C-reactive protein (CRP) level was 9.64±0.46 mg/dL. Radiologic findings were ground glass opacity (97.1 %), air-space consolidation (37.0 %), poorly defined centrilobular nodules (51.4 %), interlobular septal thickening (68.1 %), thickening of bronchovascular bundle (17.4 %), and pleural effusion (88.4 %). One hundred nine (79.0 %) patients were admitted to the ICU, and the mean duration of ICU stay was 2.50±0.13 days. Correlation between ICU days and other clinical parameters were examined. ICU days were significantly correlated with the PF ratio (r=-0.287, p=0.002) and CRP (r=0.361, p<0.0001). However other clinical parameters (BAL eosinophil, PB eosinophil, and age) were not correlated with ICU days. Also, there was no significant difference in ICU days according to radiologic findings. In a multivariable linear logistic regression analysis, PF ratio and CRP level were significant prognostic factors to determine ICU days. Conclusion: PF ratio and CRP were prognostic factors for predicting ICU days in patients with AEP. Further study about the prognostic factor in patients with AEP is needed.
Coix seed extract attenuates the high-fat induced mouse obesity via PPARγ and C/EBPα downregulation
Eun-Kyeong Choi,Yu Jeong Cho,Hea Jung Yang,Ki-Suk Kim,In-Seung Lee,Jong-Chan Jang,Kang-Hoon Kim,Ji Hyun Bang,Yumi Kim,Se Hoon Kim,Young-Hwan Cho,Na Young Yoon,Young Pyo Jang,Mi-Yeon Song,Hyeung-Jin Ja 대한독성 유전단백체 학회 2015 Molecular & cellular toxicology Vol.11 No.2
The seed of the Coix lacryma-jobi L. var. ma-yuen Stapf seed (CLMS) extract has been prescribed to alleviate obesity by practitioners of traditional Korean medicine. Here, we investigated the effect of CLMS extract on PPARγ 2 and c/EBPα and obesity responses in C57BL/6J obese mice fed on a high fat diet. The mouse body index, blood profile, and fat accumulation levels in the liver were measured. The protein expression levels of PPARγ 2 and c/EBPα in the mice livers were also measured to determine the molecular mode-of-action of the reducing effect of CLMS extract on mouse adipogenesis. The results showed that HFDinduced mouse obesity, fat accumulation, and serum cholesterol were alleviated by the CLMS extract addition. Moreover, PPARγ 2 and c/EBPα, proteins, those are related to the adipogenesis, were downregulated by the CLMS extract intake considerably. This study indicates that as a food additive, CLMS extract has a reducing effect on the high-fat diet induced fat accumulation and on body weight through the downregulation of adipogenesis.