• 가정과삶의질연구
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• 제34권4호
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• pp.51-75
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• 2016

This study focuses on the life experience of married women in their 30s to 40s who have experienced parental divorce. For a comprehensive understanding towards the women, this study takes a life history research approach. The participants of this research are 8 women who have experienced parental divorce and are now married with children. The data were gathered through in-depth interviews and were analyzed through the spiral of analysis, following the process of Wolcott's "description, analysis, and interpretation." The results of this study are as follows. First, participants experienced emotions such as fear, anger, and lack of affection. Second, parenting attitude and parental divorce had negative effects on the participants' formation and development of self concept and in turn, participants experienced anxiety and withdrawal from interpersonal relationships. Some had difficulties in concentrating on their schoolwork, which was caused by psychological effects from their instable home environments and some were negligent at school due to their parents' indifference or as an act of rebellion towards them. Third, although participants displayed interest towards the opposite sex, fear towards the opposite sex or unrealistic expectations led to difficulties in forming relationships. Participants also confessed that although they married so that they could escape their original family and form a new happy one, they experienced a rocky start at the beginning of their marriage. Fourth, parental divorce had a lifelong impact on children. Even after the children became adults, parental divorce affected each key stage of transition in life such as dating, choosing one's spouse, marriage, and child rearing. Fifth, participants displayed a strong attachment to life under the assumption that only they themselves can be depended on. This led to their strong commitments to a successful marriage without the possibility of divorce. In conclusion, parental divorce is not a transitory or incidental event. Rather, it becomes a part of the children's lives with lifelong implications.

• 한국지진공학회논문집
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• 제3권1호
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• pp.1-8
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• 1999

본 논문의 목적은 탄소성 지진 응답해석을 수행하여 고층 벽식 아파트의 내진성능을 평가하는 것이다 먼저 구조물을 3차원 입체 모델화 하여 정적 탄소성 해석을 수행하고 층강성 및 항복 충전단력을 평가한 후 그 결과를 이용하여 집준 질량계 모델을 사용한 시간 이력 지진 응답해석을 수행한다 탄소성 이력 모델로는 bi-linear 모델 및 Clough 모델을 입력 지진동파형으로는 4종류의 기록 지진동 띠 Centro 1940 NS, Taft 1952 EW Hachinohe 1968 NSm Kobe 1995 NS를 사용하고 입력 지진동의 강도는 최대 지반속도치 12Kine이 되도록 크기를 조절하여 입력한다 탄소성 지진응답 해석결과 고층 벽식 아파트는 진도 5정도의 지진동 크기에서 전층에소성 변형이 발생하여 취약한 내진성능을 보여준다.

• Journal of Yeungnam Medical Science
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• 제34권2호
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• pp.208-215
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• 2017

Background: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a cardiomyopathy characterized by predominant right ventricular fibro-fatty replacement, right ventricular dysfunction and ventricular arrhythmias. It is a rare but important cause of sudden cardiac death in children and young adults. A meta-analysis on risk stratification of major ventricular tachyarrhythmic events indicating the need for implantable cardioverter defibrillator therapy in ARVC was performed. Methods: The pubmed database was searched from its inception to May 2015. Of the 433 citations identified, 12 were included in this meta-analysis. Data regarding major ventricular tachyarrhythmic events were retrieved in 817 subjects from the studies. For the variables, a combined odds ratio (OR) was calculated using a fixed-effects meta-analysis. Results: Extensive right ventricular dysfunction (OR, 2.44), ventricular late potential (OR, 1.66), inducible ventricular tachyarrhythmia during electrophysiology study (OR, 3.67), non-sustained ventricular tachycardia (OR, 3.78), and history of fatal event/sustained VT (OR, 5.66) identified as significant risk factors (p<0.0001). Conclusion: This meta-analysis shows that extensive right ventricular dysfunction, ventricular late potential, inducible ventricular tachyarrhythmia during electrophysiological study, non-sustained ventricular tachycardia, and history of sustained ventricular tachycardia/fibrillation are consistently reported risk factors of major ventricular tachyarrhythmic events indicating implantable cardioverter defibrillator therapy in patients with ARVC.

• Steel and Composite Structures
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• 제37권6호
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• pp.679-693
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• 2020

This paper investigates the seismic response of buildings equipped with Self-Centering Energy Dissipating (SCED) braces. Two-dimensional models of 3, 6, 12 and 16-story SCED buildings considering both material and geometric nonlinearities are investigated by carrying out pushover and nonlinear time-history analyses. The response indicators of the buildings are studied for weight-scaled ground motions to represent the Design Basis Earthquake (DBE) level and the Maximum Considered Earthquake (MCE) event. The fragility curves of the buildings for two Immediate Occupancy (IO) and Life Safety (LS) performance levels are developed using Incremental Dynamic Analysis (IDA). Results of the nonlinear response history analyses indicate that the maximum inter-story drift occurs at the taller buildings. The mean peak inter-story drift is less than 2% in both hazard levels. High floor acceleration peaks are observed in all the SCED frames regardless of the building height. The overall ductility and ductility demand increase when the number of stories reduces. The results also showed the residual displacement is negligible for all of case study buildings. The 3 and 6-story buildings exhibit desirable performance in IO and LS performance levels according to fragility curves results, while 12 and 16-story frames show poor performance especially in IO level. The results indicated the SCED braces performance is generally better in lower-rise buildings.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2011년도 추계학술대회 논문집
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• pp.325-330
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• 2011

RCP(Reactor coolant pump) must be designed to preserve it's functions on normal or abnormal environments and seismic event same as operating basis earthquake(OBE) and safe shutdown earthquake(SSE). Generally, there are static and dynamic analytical method which can be applied by a floor response spectrum or time history analysis for the seismic qualification. Initially, It was accomplished a detailed structural FE-model for finite element analysis on the bases of 3-dimensional solid model which was made by the RCP drawing. As the result of dynamic characteristic using the detailed FE-model, it's shown about 12Hz natural frequency of 1st bending mode shape and maximum displacement has 11mm with the structural bending by single-point response spectrum(SPRS) method at all elevation. But maximum displacement has 7.6mm by multi-point response spectrum(MPRS) method which was applied to the three floor response spectrum at each elevation. Therefore, On a large heighten structures as RCP, The application by SPRS method causes to be more conservative results. Finally, A simpled equivalent beam model which was developed by use of iteration of detailed FE-model is shown the result more similar with those of natural frequencies and SPRS analysis. And maximum equivalent stress and displacement of the simpled beam has verified with 180MPa and 7.1mm each at 15sec as results by SSE time history method.

• 한국지역지리학회지
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• 제19권3호
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• pp.454-475
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• 2013

대구는 2011년에 세계육상선수권대회(IAAF World Championships)를 개최하였다. 조직 위원회는 이 대회를 통해서 대구에 대한 세계적인 인지도를 강화하고, 세계적인 스케일에서 관광과 투자를 촉진함으로써 최근 대구의 경기침체를 극복하고자 하였다. 한국에 거주하는 외국인의 관점에서 쓰여진 본 논문은 문화지리 분석 방법을 혼합하여 세계육상선수권대회로 인해 파급된 관광과 투자의 영향을 평가하였다. 본 논문은 대규모 이벤트를 활용한 장소의 생산을 고찰하기 위해 세 단계의 '영토화(territorialisation)' 접근법를 적용하였으며, 특히 세계육상선수권대회가 개최되기 전과 개최되는 동안의 재현 활동(representational efforts)을 살펴보았다. 이 과정에서 웹사이트, 안내책자 등과 같은 대회 관련 홍보물이 주로 사용되었으며, 관광객을 대상으로 한 인터뷰를 통해 연구 결과를 보충하였다. 이와 관련한 문헌 자료, 대구의 역사, 그리고 Daegu 2011의 추진 배경을 검토한 결과, 본 논문은 세 가지 항목으로 도출되었다. 첫째, 비판 담론 분석(critical discourse analysis)을 통해 대회와 관련된 홍보 비디오를 분석한 결과 대구시는 세계 관광 시장에서 차지하는 대구의 지위에 대하여 불확신한 것으로 나타났다. 둘째, 관광지로서 대구의 위상에 대한 대구시 자체의 불확신은 홍보 비디오 이외의 다른 홍보물 분석에서도 여전히 나타났다. 이런 홍보물들은 대구시의 이미지와 미래를 향한 염원에 부담을 초래하였다. 셋째, 이런 논의를 확장시킨 결과 홍보물에서 보여지는 대구의 관광 경관은 실제 보여지는 경관과 부분적으로 차이가 나타나고 있었다. 이것으로 볼 때, 세계선수권대회는 대구시에 긍정적인 효과를 창출함과 동시에 앞으로 세계적인 도시로서의 위상을 확립하기 위해서 해결해야 할 과제를 남기고 있다.

• 한국인구학
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• 제25권2호
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• pp.107-138
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• 2002

여성들의 경제활동 상태는 '가족주기'와 같은 '생애과정'과 밀접히 관련되어 있기 때문에, 경력단절 경향이 강하다. 이 연구는 한국여성의 취업유형을 규명하는 데, 특히 여성들의 생애과정 씨퀀스(sequence)가 갖는 효과를 중심으로 여성들의 취업 이행 과정을 분석하고 있다. 여성들의 경제활동상의 지위 변화에는 과거의 일회적인 사건의 효과 이상으로 과거 생애과정에 축적된 연계의 효과가 중요하기 때문이다. 이 연구의 연구가설은 두 가지이다. 첫 번째 연구가설은, 생애과정 씨퀀스별로 구분되는 여성들의 네 개의 취업경력 유형들 사이에 유의미한 사회.인구학적 차이가 있을 것이라는 점이다. 두 번째 연구가설은, 생애과정 씨퀀스의 배열 순서에 따라 여성들의 취업 이행 과정은 매우 다를 것이라는 점이다. 이 연구가설을 검증하기 위해서 여성취업실태조사자료 가운데 취업력 및 생활사에 대한 종단적 자료를 일원변량분석 및 사건사분석(event history analysis)방법으로 분석하였다. 분석 결과, 취업경력 유형에 따라 구분된 '연속취업형', '불연속취업형', '비경제활동형', '결혼후 퇴장형'의 네 집단간에는 연령, 학력, 자격증 소지 여부, 부모의 인적자본, 건강 상태 등에서 유의미한 차이가 존재함을 발견하였다. 또한 생애과정 씨퀀스의 배열 순서에 따라 구분된'취업후 결혼형'과'결혼후 취업형'은 취업 진입과 취업 단절 행위에서 매우 구별되는 집단임을 확인하였다. 이와 같은 분석 결과를 통해서, 여성들 내부의 경제활동상의 이질적인 집단의 구분과 각 집단 내부 여성들의 다양한 취업 경로를 규명하는 데, 생애과정 씨퀀스가 중요한 설명변수로 작용함을 경험적으로 입증하였다.

• Wind and Structures
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• 제31권2호
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• pp.143-152
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• 2020

The wind design of buildings is typically based on strength provisions under ultimate loads. This is unlike the ductility-based approach used in seismic design, which allows inelastic actions to take place in the structure under extreme seismic events. This research investigates the application of a similar concept in wind engineering. In seismic design, the elastic forces resulting from an extreme event of high return period are reduced by a load reduction factor chosen by the designer and accordingly a certain ductility capacity needs to be achieved by the structure. Two reasons have triggered the investigation of this ductility-based concept under wind loads. Firstly, there is a trend in the design codes to increase the return period used in wind design approaching the large return period used in seismic design. Secondly, the structure always possesses a certain level of ductility that the wind design does not benefit from. Many technical issues arise when applying a ductility-based approach under wind loads. The use of reduced design loads will lead to the design of a more flexible structure with larger natural periods. While this might be beneficial for seismic response, it is not necessarily the case for the wind response, where increasing the flexibility is expected to increase the fluctuating response. This particular issue is examined by considering a case study of a sixty-five-story high-rise building previously tested at the Boundary Layer Wind Tunnel Laboratory at the University of Western Ontario using a pressure model. A three-dimensional finite element model is developed for the building. The wind pressures from the tested rigid model are applied to the finite element model and a time history dynamic analysis is conducted. The time history variation of the straining actions on various structure elements of the building are evaluated and decomposed into mean, background and fluctuating components. A reduction factor is applied to the fluctuating components and a modified time history response of the straining actions is calculated. The building components are redesigned under this set of reduced straining actions and its fundamental period is then evaluated. A new set of loads is calculated based on the modified period and is compared to the set of loads associated with the original structure. This is followed by non-linear static pushover analysis conducted individually on each shear wall module after redesigning these walls. The ductility demand of shear walls with reduced cross sections is assessed to justify the application of the load reduction factor "R".

• 국제초고층학회논문집
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• 제4권3호
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• pp.181-189
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• 2015

Shimizu Corporation Tokyo Headquarters, one of the city's leading office buildings, features many pioneering technologies that contribute to a sustainable society through environmental stewardship and a sophisticated disaster management facility. In terms of structural engineering, a seismic isolation system incorporating reinforced concrete core walls and precast concrete perimeter frames create a robust structure in the event of a large earthquake. In addition to the seismic resistance of the structure, several pioneering construction methods and materials are adopted. This office building can serve as a basis for new design and construction approaches and methodologies to ensure safe and economical structures.

• Advances in Computational Design
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• 제1권3호
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• pp.221-234
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• 2016

The present study dictates the behavior of shear wall under a seismic event in slender high rise buildings, and studies the effect of height, location and distribution of shear wall in slender high rise building with and without boundary elements induced by the effect of an earthquake. Shear walls are located at the sides of the building, to counter the earthquake forces. This study is carried out in a 12 storeys building using SAP2000 software. The obtained results disclose that the behavior of the structure is definitely affected by the height and location of shear walls in slender high rise building. The stresses are concentrated at the limit between the shear wall region and the upper non shear wall especially for shear walls without columns. Displacements are doubled between the shear wall region and the upper non shear wall especially for shear walls without columns.