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조적벽의 영향을 고려한 표준학교건물의 3차원 비탄성거동
윤태호 대한건축학회지회연합회 2015 대한건축학회연합논문집 Vol.17 No.3
The purpose of this study was to analyze and compare the inelastic behavior of the standard school buildings considering infilled masonry walls. Pushover analysis method is used to evaluate the elastic and inelastic response of standard school building. Infilled masonry walls are usually considered as non-structural elements in structural analysis and design, but the behavior of school building considering infilled masonry walls is quite different and the influence of the masonry wall should be included. The result shows that the seismic capacity of pure frame building is 76% of design base shear of KBC2009 but considering infilled masonry wall the same building has 3.5-6.58 times the shear strength in longitudinal direction and 4.03-5.66 times in short direction according to infilled wall shear strength. Plastic hinges in short direction are first produced in masonry walls, but plastic hinges in longitudinal direction are appeared in frame members.
윤태호,김준연,유승흠,김정만,이용환,흥영습,이상이 한국보건사회학회 2007 보건과 사회과학 Vol.0 No.20
본 연구는 어린이의 연령군별에 따라 출생 시 부모의 사회경제적 지위가 어린이 사망률에 어떠한 영향을 미치는 지를 파악하기 위함이다. 자료원은 1995년 출생아 전체를 모집단으로 하여 1995년에서 2003년까지의 사망아를 주민번호로 연결한 출생-사망 코호트 자료이다. 출생아의 주민동록이 부정확하여 짝짓기에서 오류가 있거나, 입력에 오류가 있는 경우를 제외한 출생아 696,025명, 사망아 3,547명을 분석 대상으로 하였다. 연령은 신생아기, 후기신생아기, 1-4세, 5-8세로 분류하였고, 부모의 사회경제적 지위는 부모의 교육수준과 아버지의 직업계급으로 하였다. 통계분석은 콕스의 비례위험함수 모형을 활용하였다. 부모의 사회경제적 지위는 산모의 연령, 임신주수, 태아수, 태아의 성별, 출생 시 체중을 보정한 후에도 어린이 사망률에 매우 유의한 영향을 미치는 것으로 파악되었다. 신생아기에서는 그 유의성이 비교적 약하였으나, 후기 신생아기, 1-4세, 5-8세에서는 부모의 교육수준이 낮을수록 사망위험비가 계단식으로 증가하였으며, 아버지보다는 어머니의 학력수준에 더 큰 영향을 받는 것으로 나타났다. 또한, 출생 지역의 사회경제적 수준에 따라서도 어린이의 연령군별 사망위험비에서 뚜렷한 차이를 보였다. 지난 수십년간 어린이 사망률은 양적으로는 급격하게 감소되어져 왔음에도 불구하고, 사회계층 간의 불평등 문제는 개선될 여지가 많다. 어린이는 건강불평등을 감소시키는데 가장 중요한 인구 집단이다. 특히 저출산의 시대에서 어린이의 건강불평등을 줄이기 위한 보다 적극적이고 강력한 국가적, 사회적 정책 개입이 필요할 것이다. This study was performed to examine the association between childhood mortality and parental socioeconomic position according to age groups. Data on births registered in South Korea in 1995 (696,025 births) were linked with the national death register 1995-2003 (3,547 deaths) using unique national identification numbers. Parental socioeconomic position was defined by parental education level and occupation of the father. Age groups were classified as neonatal, post-neonatal, 1-4 and 5-8 years. Statistical analyses were based on the multivariate Cox s proportional hazard model after adjustment for maternal age at birth, birth weight, gestational age and plurality. There was a systematic gradient in child mortality according to the parental education level, occupation of the father, and regional socioeconomic state at birth. Multivariate analyses demonstrated socioeconomic differences in morality rate ratios; independent associations were persistent in the post-neonatal period, 1-4, 5-8 age groups, but in the case of neonatal period, it was weaker. Children whose parents, especially the mother, had the highest education had over 3 times a higher mortality rate than those in the lowest sector. Child health has improved dramatically in South Korea over the past decades, but there are some alarming negative socioeconomic trends. Children are an important group for interventions aimed at reducing health inequalities. The government of South Korea should recognize more the right of all children to the best possible start in life.
윤태호,김용성 대한건축학회 2000 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.20 No.2
The purpose of this study is to suggest the direction of development in architectural technology far designing intelligent future housing. Recently, intelligent housing was built by several countries such as England, France, America and Japan and it was constructed by major construction companies in Korea, also. However, design direction of intelligent housing has not completed until now and intelligent housing have been constructed without specific direction have caused to unreasonable economical investment, commercializing of intelligent system, environmentally-unfriendly problems. Based of these problems, it is important that the direction of development in architectural technology for designing intelligent housing has been studied through the research. In this research, three intelligent housing cases built by major constnzction companies in Korea, are analyzed and the direction of development in architectural technology for designing intelligent future housing, are suggested through the research.
윤태호,송유승,Yoon, Tae-Ho,Song, Yoo-Seoung 대한임베디드공학회 2012 대한임베디드공학회논문지 Vol.7 No.5
In the present, Wireless Sensor Network(WSN) has been used for the purpose of the military operation with surveillance systems and for collecting useful information from the natural environment. Basically, low-power, easy deployment and low cost are the most important factors to be deployed for WSNs. Lots of researches have been studied to meet those requirements, especially on the node capacity and battery lifetime improvements. Recently, the study of wireless mesh networks applied into the surveillance systems has been proceeded as a solution of easy deployment. In this paper, we proposed large-scale intelligent multi-layer surveillance systems based on QoS assuring Wireless Mesh Networks and implemented them in the real testbed environment. The proposed system explains functions and operations for each subsystem as well as S/W and H/W architectures. Experimental results are shown for the implemented subsystems and the performance is satisfactory for the surveillance system. We can identify the possibility of the implemented multi-layer surveillance system to be used in practice.
윤태호,송유승,Yoon, Tae-Ho,Song, Yoo-Seoung 대한임베디드공학회 2012 대한임베디드공학회논문지 Vol.7 No.6
Security and monitoring system has many applications and commonly used for detection, warning, alarm, etc. As the networking technology advances, user requirements are getting higher. An intelligent and cooperative surveillance system is proposed to meet current user demands and improve the performance. This paper focuses on the implementation issue for the embedded intelligent surveillance system. To cover wide area cooperative function is implemented and connected by wireless sensor network technology. Also to improve the performance lots of sensors are employed into the surveillance system to reduce the error but improve the detection probability. The proposed surveillance system is composed of vision sensor (camera), mic array sensor, PIR sensor, etc. Between the sensors, data is transferred by IEEE 802.11s or Zigbee protocol. We deployed a private network for the sensors and multiple gateways for better data throughput. The developed system is targeted to the traffic accident detection and alarm. However, its application can be easily changed to others by just changing software algorithm in a DSP chip.