http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
최정환,홍기일,김희택 한국공업화학회 2000 응용화학 Vol.4 No.1
In order to apply as a desiccant for desiccant cooling system, zeolites were modified. As a result of comparison of adsorption isotherm, the zeolites treated by EDTA 0.5∼0.6 g / g zeolite and HCl 0.3M had the optimal adsorption isotherm.(separation factor (R) = 0.1) The amount of adsorbed water on HCl treated zeolite decreased as the HCl concentration increased, but in case of EDTA treated zeolite, the deviation was small so EDTA treated was more efficient.
Seismic Performance Management of Aged Road Facilities in Korea: Part 1 – Fragility Curves
신수봉,김익현,송기일,박두희,김병민,안효준,홍기증 대한토목학회 2024 KSCE Journal of Civil Engineering Vol.28 No.5
This study aimed to develop a decision-making support system for managing the seismic performance of aged road facilities in a road network, based on their evaluated seismic performance. This study was divided into two parts. In Part 1, seismic fragility functions are developed for bridges, tunnels, retaining walls, and slopes, while considering aging. In Part 2, the degradation of the seismic performance of the road network, along with social and economic resilience are evaluated based on these seismic fragility functions. The developed decision-making support system was applied to domestic test beds in Korea, and the results are discussed in Part 2. To develop seismic fragility, various ground motions suitable for the ground conditions in South Korea were generated. In particular, reduced- and real-size bridge piers and bearings were tested to study the effect of aging on seismic behavior. Other types of facilities, such as tunnels, retaining walls, and slopes, were also analyzed to study the same. For simplicity, representative facilities that can properly represent the seismic behavior of similar facilities were selected from a large number of facilities. The limit states for these representative facilities were defined, and their seismic fragility curves were calculated using these limit states.