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Interactions of Iridium Hydride Complexes with Small Molecules
이도원 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0
Hydrogen as the alternative energy source is one of the best because it is environmentally friendly. One of the big problems is the storage when it was used as fuel. Alkanes areone of the potential hydrogen storages, if possible, because they contain lots of hydrogen sources. Alkanes are abundant and relatively inexpensive. Therefore, they would be ideal chemical feedstocks. However, alkanes are very poor electron donors and/or acceptors and thus the activation of alkane C-H bonds is difficult. The initial interaction of hydrogen with metal complexes is very similar to that of carbon-hydrogen bonds of alkanes with metal complexes. A fundamental understanding of the nature of the alkane-metal interactions is required in order to design better catalysts for C-H bond activation. During the past decade there has been a great deal of continued activity focused upon discovering and understanding C-H bond activation by soluble transition metal complexes. The goal of these studies is not simply to find new C-H bond activation reactions, but to gain an understanding of these processes such that catalysts can be developed for the selective transformation of inexpensive alkanes to more valuable compounds. In this presentation, the hydrogen storage and C-H bond activation using iridium complexes will be discussed.
마감공사 패키지를 활용한 교육시설공사 BIM기반 개산견적 방안
이도원,윤석헌,조찬원 한국CDE학회 2019 한국CDE학회 논문집 Vol.24 No.4
Recently, interest in BIM has been increasing, and various studies are under way to utilize BIM technology. Research is underway on the cost estimation method using BIM, but it is still difficult to make it practical. The biggest reason is that there is currently a lack of analysis of the relationship between BoQ and Quantity Bill and research on how to improve it. The purpose of this study is to construct a finishing work packages for calculating interior finishing work by analyzing the existing BoQ document and quantity statement of the school facilities and correlating the space, site, and work information used at the cost estimation phase. In addition, we would like to predict the interior work cost through Monte Carlo simulation. The purpose of the analysis is to analyze the appropriateness of the cost estimate using the interior work packages for the actual case sites. The analysis results showed that it could be applied to approximate cost estimates of the interior work at the basic design stage. However, it is necessary to consider additional detail impact factors for the application of the detailed design phase.
화상 환자의 방어기제와 외상후 스트레스 장애와의 관련성
이도원,최양환,김종대,손경락,임우영,전진용 한국정신신체의학회 2021 정신신체의학 Vol.29 No.2
Objectives:This study was designed to investigate the correlation between defense mechanism and posttraumatic stress disorder in burn patients. Methods:We recruit 40 burn patients and we evaluate sociodemographic characteristics, characteristics related to burn, korean version of Impact of Event Scale-Revised (IES-R), Korean Version of Center for epidemiologic studies depression scale (CES-D) and Ewha Defense Mechanisms Test (EDMT). Multiple regression analysis was performed to evaluate the correlation between EDMT score and IES-R score. Results:Factor 2 of EDMT which consists of Ego-expansion subjects was significantly correlate with IER-S score. In factor 2, Controlling (β=-0.299, p<0.05), Sublimation (β=-0.276, p<0.05) is significantly correlate with IER-S score. Conclusions:Some subjects of defense mechanism was significantly correlate with IES-R score. it might be helpful to understand defense mechanism for the posttraumatic stress disorder in burn patients. 연구목적: 화상 환자의 방어 기제에 따른 외상 후 스트레스 증상의 정도를 알아보고자 이 연구를 수행하였다. 방 법: 화상을 진단받은 환자 40명을 대상으로 사회 인구학적 특성, 화상 관련 특성, 한국판 사건충격척도 개정판(Impact of Event Scale-Revised, IES-R), 한국판 역학조사 우울증 척도(Center for epidemiologic studies depression scale, CES-D), 이화방어기제(Ewha Defense Mechanisms Test, EDMT)를 측정한 후 다중회귀분석을 실시하였다. 결 과: 자아 확대적 방식으로 구성된 EDMT의 요인 2의 점수가 IES-R 점수와 통계학적으로 유의한 상관관계가 있었으며(β=-0.318, p=0.018), EDMT의 요인 2중에서는 통제(β=-0.299, p<0.05), 이타주의(β=-0.276, p<0.05) 가 IES-R점수와 통계학적으로 유의한 상관관계가 있었다. 결 론: 이 연구에서 화상 환자의 외상 후 스트레스장애는 통제, 이타주의 방어 기제와 상관성이 있었으며 화상 환자의 치료에 있어 방어 기제를 평가하는 것은 추후 외상 후 스트레스 장애의 심각도 판단에 도움을 줄 것으로 생각된다.
고령자 생활인구 기반 근린생활시설의 분포에 따른 고령자 주택의 근린생활공간
이도원,이현수 한국실내디자인학회 2022 한국실내디자인학회논문집 Vol.31 No.3
As the baby boomer generation reaches age 65, older adults increasingly prefer to live in urban areas. Community spaces in senior housing are becoming important to support active aging, and they are likely to become a neighborhood amenity, helping to increase the social participation of older residents and activate the local community. Therefore, the aim of this study is to analyze the distribution of facilities in the neighborhood according to the temporal patterns of the elderly based on the Bigdata of the de facto population in order to propose efficient community spaces. The analysis was conducted in two main steps: 1) K-means clustering to classify the types of elderly time series patterns, 2) One-way ANOVA, to analyze the distribution of facilities in the neighborhood according to the types of time series patterns. The result was that the de facto population of elderly people was classified into 5 types according to time and region, and the characteristics of the distribution of facilities were different for each type. Therefore, it is necessary to provide housing for the elderly that reduces housing costs and integrates with the local community by considering the different characteristics of the elderly and the resources of the local community.