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공동주택 지하주차장의 열적특성을 고려한 바닥 표면결로방지 방안에 관한 연구
서용원 ( Yong Won Seo ),오창원 ( Chang Won Oh ),김창호 ( Chang Ho Kim ),박찬식 ( Chan Sic Park ) 한국건축시공학회 2010 한국건축시공학회 학술발표대회 논문집 Vol.10 No.2
For the pleasant dwelling place, the most of apartments are designed with the increased green area ratio in ground space and the underground parking lot. However, the condensation in underground space has occasionally occurred due to the insufficient ventilation and insulation treatment. Despite reinforcement of the insulation treatment and mechanical ventilation for the preventing method of condensation. It seems difficult to expect preventing effects for the condensation without consideration of the thermal characteristic of structures. Furthermore, no fundamental measure has been established because maintenance work for these defects incurs a lot of costs and these defects could be occurred again. This study suggests a new method for preventing floor surface condensation through analyzing the reasons of condensation which occurred in the underground floor,
전단 간섭법에 의한 내부 결함이 있는 압력용기의 결함 및 변형 동시 측정
김경석(Kyung-suk Kim),정현철(Hyun-Chul Jung),김경수(Kyung-su Kim),전소영(So-young Jeon),박찬식(Chan-Sic Park),최태호(Tae-Ho Choi) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
The range of use of pipes and pressure vessels has been widely used in nuclear power field and the other fields. Interest in non-destructive testing for maintaining the integrity of pipes and pressure vessels is also increasing. Shearography which is the typical non-destructive and non-contact testing method using laser can relatively measure the out-of-plane deformation in the defect parts of pipes. However, there is a difficulty with measuring the out-of-plane in non-defect parts with shearography. Therefore, the deformations in both defect part and non-defect part of pressure vessel which is processed with a defect artificially were measured using shearography in this paper. These results suggest the possibility that shearography can measure the out-of-plane deformation more precisely