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장기간 이별 후 고대하던 가족과의 재회를 통한 정서적 해소효과
유빈,석정호,김혜선,김병후,유계준 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.3
Objectives : Separation and reunion is common experiences in our life but enduring unwanted early-life separation from family members may be a distressful event. This study was executed to observe emotional resolution in the subjects who eagerly desire and experience reunion with their families after long-lasting separation. Methods : Thirty subjects who have participated in the reunion program of the Korean Broadcasting System (KBS) from April 2005 to July 2005 were interviewed to assess their demographic characteristics and memories about separation. Their anxiety and depressive mood were assessed using Spielberger’s State-Trait Anxiety Inventory, Beck Depression Inventory, Hamilton Depression Rating Scale and Hamilton Anxiety Rating Scale before the family reunion. At the time of the reunion, psychological states of 14 participants who were able to meet their family members were assessed again using the same assessment tools and the follow-up assessment was performed for one possible case at 7 months after the reunion. Results : The depression and anxiety levels of most subjects were significantly decreased after the reunion. Standardized T scores of their state-anxiety were mostly in abnormal range before the reunion but most of their anxiety levels were reduced within normal range after the reunion. Duration of education was negatively correlated with trait-anxiety level and duration of separation respectively even though trait-anxiety levels were not directly correlated with duration of separation. Emotional acceptability about childhood separation tended to contribute to the increased anxiety level. Conclusion : This is the first study to assess psychological distresses of the Korean people who have suffered from long-lasting separation with their families. The results in this study suggest that the eagerly desired reunion after long-lasting separation from family may have a resolutive effect for emotional distress, further study will be needed for larger population suffering from early-life separation.
( Seok Hoo Jeong ),( Young Kul Jung ),( Jae Won Yang ),( Sang Jin Park ),( Jong Woo Kim ),( Oh Sang Kwon ),( Yun Soo Kim ) 대한간학회 2012 Clinical and Molecular Hepatology(대한간학회지) Vol.18 No.4
Background/Aims: Sustained virologic response (SVR) for the treatment of chronic hepatitis C (CHC) may differ with ethnicity due to differences in genetic traits. This study evaluated the efficacy of peginterferon and ribavirin, and the association between IL28B genotypes and the treatment efficacy in Korean CHC patients. Methods: This was a retrospective cohort study using data from medical records. Eighty-five CHC patients were eligible for assessment of the efficacy of antiviral therapy, and 47 patients were available for an IL28B genetic study, which was performed using the Multiplex tetra-primer PCR method for rs12979860. Results: Overall, the early virologic response rate was 87.1%: 84.9% in HCV genotype 1 and 90.6% in genotype 2. The overall end-of-treatment virologic response rate was 81.2%: 75.5% in genotype 1 and 90.6% in genotype 2. The overall SVR rate was 81.2%: 75.5% in genotype 1 and 90.6% in genotype 2. For rs12979860, the frequencies of polymorphisms were 89% for the CC type, 11% for the CT type, and 0% for the TT type. Their overall SVR rate was 87% (39/47): 90.5% (38/42) for the CC type and 20% (1/5) for the CT type. For genotype 1, SVR rates were 88% (21/24) for the CC type and 0% (0/4) for the CT type. Multivariate analysis revealed that the IL28B-CC type was a good predictor for SVR. Conclusions: The SVR of the combination therapy in Koreans was higher than that observed in Western countries. This finding might be attributable to the high prevalence of IL28B-CC type among Koreans, which may be a good predictor of SVR. (Clin Mol Hepatol 2012;18:360-367)
Dry Air/O₂ 혼합가스의 혼합비에 따른 절연파괴 및 연면방전 특성 연구
석정후(Jeong-Hoo Seok),백종현(Jong-Hyun Beak),임동영(Dong-Young Lim),배성우(Sungwoo Bae),김기채(Ki-Chai Kim),박원주(Won-Zoo Park) 한국조명·전기설비학회 2015 조명·전기설비학회논문지 Vol.29 No.6
This paper presents the discharge characteristics and economic feasibility of a Dry Air/O₂ and a N₂/O₂ mixture gas in order to review SF6 alternative. From AC discharge experiment in an quasi-uniform field, it was found that the optimal N₂/O₂ mixing ratio which breakdown voltage and surface flashover voltage were the highest was 70/30 and that the pressure dependence on the breakdown voltage was higher than that of the surface flashover voltage in the Dry Air/O₂ and the N₂/O₂ mixture gas. The mixing ratio (70/30) and the tendency of the pressure dependence were described in detail based on physical factors (impact ionization coefficient, electron attachment coefficient, secondary electron emission coefficient) involved in discharge mechanism and a electron source, respectively. In addition, the performance insulation and the economic feasibility of the Dry Air/O₂ and the N₂/O₂ mixture gas were discussed so that Dry Air/O₂ mixture gaswas more suitable than N₂/O₂ mixture gas to the SF6 alternative.
개선된 Dry Air와 SF<SUB>6</SUB>의 혼합비에 따른 절연파괴 특성 연구
석정후(Jeong-Hoo Seok),백종현(Jong-Hyun Beak),임동영(Dong-Young Lim),배성우(Sungwoo Bae),김기채(Ki-Chai Kim),박원주(Won-Zoo Park) 한국조명·전기설비학회 2016 조명·전기설비학회논문지 Vol.30 No.3
It is very desirable that a mixture gas possessing excellent insulation performance is suggested for insulation on increasing high voltage. This paper proposes a SF<SUB>6</SUB> mixture gas based on the factors including dielectric strength, environmental impact and economic feasibility of manufacture for the insulation in eco-friendly power equipment. A suitable-SF<SUB>6</SUB> content was determined to improve the dielectric strength in N₂ and Dry Air. The examination results of the factors revealed that a SF<SUB>6</SUB>/Dry Air mixture gas possessing the SF<SUB>6</SUB> content was more appropriate than a SF<SUB>6</SUB>/N₂ mixture gas to the eco-friendly power equipment. In addition to the selection of the suitable SF<SUB>6</SUB> mixture gas, insulation characteristics as a function of SF<SUB>6</SUB> content were described from electron-detachment mechanism.
문서 단편화 기법을 이용한 XML 저장 관리 시스템 개발
정창후(Chang-Hoo Jeong),최윤수(Yun-Soo Choi),서정현(Jeong-Hyeon Seo),진두석(Du-Seok Jin),김광영(Kwang-Young Kim),주원균(Won-Kyun Joo),이민호(Min-Ho Lee) 한국정보과학회 2005 한국정보과학회 학술발표논문집 Vol.32 No.1
다양한 응용 분야에서 점차 증가하고 있는 XML 문서를 효과적으로 저장하고 검색하는 방법에 대한 연구가 많이 이루어지고 있다. XML 문서의 정보를 데이터베이스에 저장하는 방법으로 분할 저장 방식과 비분할 저장 방식이 있는데, 본 논문에서는 두 가지 방법의 중간자적인 형태를 취함으로써 문서의 구조적인 정보를 효과적으로 표현하고, 검색 결과 재구성 시에 발생하는 오버헤드를 제거할 수있는 시스템에 대해서 설명하도록 한다. 복잡한 계층 구조의 XML 문서를 서비스의 목적에 따라서 중요하다고 판단되는 단편노드의 단위로 구분하고 단편노드 안에 존재하는 세부 엘리먼트 및 속성에 대해서 별칭을 사용하는 검색 필드를 미리 구성해 놓음으로써, XML 문서의 구조적 특성을 명확하게 알지 못하거나 질의어 작성에 익숙하지 못한 사용자에게 보다 사용하기 편리한 XML 문서 검색 서비스를 제공할 수 있다.
정창우(Chang-Hoo Jeong),이중현(Jung-Hyun Lee),이현숙(Hyun-Suk Lee),김평(Pyung Kim),양명석(Myung-Seok Yang),맹성현(Sung-Hyon Myaeng),서정현(Jeong-Hyun Seo),김현(Hyun Kim) 한국정보과학회 2001 한국정보과학회 학술발표논문집 Vol.28 No.1B
사용자들은 기하급수적으로 증가하는 정보 중 원하는 정보를 보다 빠르고 정확하게 제공받기를 원한다. 웹 환경에서 분산되어 있는 검색서버의 특성을 고려한 통합검색 서비스를 통해 사용자는 다수의 분산 서버에서 원하는 정보를 손쉽게 찾을 수 있다. 본 연구에서는 웹 상에 물리적으로 분산된 서버, 즉 이질적인 환경을 가지는 다수의 분선서버를 대상으로 논리적으로 묶어서 하나의 통합검색환경을 제공하기 위한 시스템을 설계하고 구현하였다. XML 기반으로 정의된 프로토콜을 사용해서 각각의 분산된 서버는 쉽게 통합검색에 참여할 수 있으며, 통합서버는 분산서버의 메타 데이터 정보를 이용해서 사용자의 질의 및 결과를 효율적으로 처리하도록 한다.
문서 단편화 기법을 이용한 XML 변환기의 설계 및 구현
정창후(Chang-Hoo Jeong),최윤수(Yun-Soo Choi),주원균(Won-Kyun Joo),진두석(Du-Seok Jin),김광영(Kwang-Young Kim),이민호(Min-Ho Lee),서정현(Jeong-Hyeon Seo) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.2Ⅱ
최근 다양한 응용 분야에서 점차 증가하고 있는 XML 문서에 대한 효과적 검색을 위해서 많은 검색 시스템들이 제안되고 있다. 그러나 이러한 검색 시스템은 XML 문서의 구조적 특성을 명확하게 알지 못하거나 질의어 작성에 익숙하지 못한 사용자에게 XML 문서를 검색하는데 많은 어려움을 주고 있다. 이러한 문제를 해결하기 위해 본 논문은 복잡한 계층의 XML 문서를 의미 있는 엘리먼트를 중심으로 계층을 단순화시켜서 검색에 이용할 수 있도록 도와주는 XML 문서 변환기를 제안한다. XML 문서 변환기는 XML 문서의 부모-자식 관계, 형제 관계 등의 계층 정보를 유지하면서 문서를 단편화 시켜주는 도구이다. XML 문서 변환기와 더불어 이것을 이용하여 구현된 XML 문서 검색 시스템의 계층적 출력 인터페이스에 대하여 함께 설명하도록 한다.