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소승영(So, Seung-Young),이현희(Lee, Hyun-Hee),서붕교(Seo, Boong-Kyo) 한국주거환경학회 2014 주거환경(한국주거환경학회논문집) Vol.12 No.4
The purpose of this study was to improvement of supply system for public rental housing considering social change and demands as stated above. With the respect, it will indicate pending issues and derive solutions from comparison of users" and plan participants" awareness. Through consciousness survey of plan participants and users of public rental housing, this study extracted key words for improvement directions and analyzed their consciousness. The results are summarized as follows: The interests of the residents are the lives of the residents to affect for their lives. However experts required at the planning stage, very interested social mix, maintenance issues, etc, the life of the residents did not leave a big concern. Managers in planning stage for the development floor plan type change, public institutions, experts involved in the construction professionals, architects concerned that it is important to be able to minimize the change of the parent plan. However, the rent should be placed in convenient transportation area, move away from large-scale housing estates in development, there are important points that an early build of the various infrastructure shows the consensus. In addition, funding for rental housing has also seen a general consensus that the role of the government as very important. Group-specific characteristics and differences over consciousness proposed to improve the underlying problems and issues related to the direction of public rental housing.
모르타르 내 염화물 고정화와 중성화의 상호영향에 관한 연구
소승영(So Seung-Young) 대한건축학회 2003 大韓建築學會論文集 : 構造系 Vol.19 No.7
Chloride ions introduced into the concrete through m ix ingredients such as unw ashed chloride-contaminated coastal sands used as fine aggregates and enter concrete from outside sources during the service life of structures. If Chloride ions exist in the vicinity of the steel w ill show pitting corrosion even though the pH of the environment is higher than 11.0. Carbonation of cover concrete is considered one of the most common culprits in the corrosion of steel in concrete. It breaks down the passive film and allows the steel to corrode actively at a high rate. The main objective of this study is to investigate the interrelationship between chloride binding and speed of carbonation by conducting an accelerated carbonation test on mortar which chlorides were m ixed. It was found that chloride-bearing mortar were accelerated carbonation and the Friedel's salt were broken down in carbonation. Also CO₂ has affected Ca(OH)₂ and ettringite. The amount of chlorides in non-carbonation zone is twice as much as adding chlorides because chlorides in carbonation is to move toward the non-carbonation zone.
소승영(So, Seung-Young),이제방(Yi, Je-Bang),장칩도르지(Khulgadai, Janchivdorj),소형석(So, Hyoung-Seok) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.12
This paper reports development characteristics of strength and microstructure of RPC (reactive powder concrete) containing meta-kaolin, in order to use meta-kaolin as the substitutive material of silica fume, which is so expensive in Korea. Various RPC containing meta-kaolin were made by replacement ratio of meta-kaolin and different curing conditions, and their mechanical properties, hydration products and pore structures were investigated. The result has shown possibility of meta-kaolin as a substitutive materials of silica fume in RPC. It was also shown use of meta-kaolin is invaluable for increase of strength at very early age (1 day), and expecially for the improvement of flexural strength than compressive strength. The effect of strength improvement in RPC containing meta-kaolin could be explained based on the analysis of hydration products and pore structure of them by XRD, SEM and MIP(mercury intrusion porosimetry) technique.
다양한 유/무기계 항진균제를 이용한 항균모르타르의 항곰팡이 성능 평가
소승영(So, Seung-Young),이민수(Lee, Min-Su),장홍석(Jang, Hong-Seok),소형석(So, Hyoung-Seok) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.3
This study discuss the antifungal performance of antifungal mortars with various organic and inorganic antifungal agent on the five kinds of mold: Chaetomium globosum, Aspergillus niger, Aureobasidium pullulans, Gliocladium virens and Penicillium pinophilum, which can be easily discovered in the interiors and exteriors of buildings. Various antifungal mortars using organic and inorganic antifungal agents were made in this study, and the antifungal performance, the durability of antifungal activity and chemical stability of them were investigated. As the results, the antifungal mortar with 10% Df-45 of organic antifungal agent exhibited the outstanding antifungal activity as well as the durability of antifungal activity. The antifungal mortars with inorganic antifungal agents presented overall the low antifungal activity and durability of antifungal activity, relatively.
사육사슴 및 야생고라니의 Neospora caninum에 대한 항체가 조사
조영숙 ( Young Suk Jo ),이정원 ( Jeong Won Lee ),정윤신 ( Yun Shin Chung ),소승영 ( Seung Young So ),박현종 ( Hyun Jong Park ),조호성 ( Ho Seong Cho ),김범석 ( Bum Seok Kim ),임채웅 ( Chae Woong Lim ) 한국가축위생학회 2010 韓國家畜衛生學會誌 Vol.33 No.3
With deer farming now becoming recognized as one of the alternative livestock farming practices, there has been much attention on infectious diseases of cattle, but less awareness of these diseases in deer. Serum samples were randomly collected from 78 deer from 31 farms and 7 wild water deer from wild animal medical center during 2005 to 2007, respectively. A total 85 sera were tested for Neospora caninum antibodies by ELISA. Fourteen farmed deer(17.9%) were positive to N. caninum but no antibodies were found in sera from wild water deer. The sera from all of the area for these study showed positive in the range from 6.7 to 30.7%. On the basis of these study, farmed deer in Jeonbuk province were exposed extensively and seriously to N. caninum which might present a risk to other species included cattle and dog.
사육사슴 및 야생고라니에서 소 세균성 전염병에 대한 혈청학적 연구
조영숙 ( Young Suk Jo ),정윤신 ( Yun Shin Chung ),소승영 ( Seung Young So ),설민숙 ( Min Suk Seol ),조호성 ( Ho Seong Cho ),김범석 ( Bumseok Kim ),임채웅 ( Chae Woong Lim ) 한국가축위생학회 2010 韓國家畜衛生學會誌 Vol.33 No.3
Deer can be one of the susceptible animals to bovine infectious diseases, and thus, may play a role either as a reservoir or amplifier host for spreading the diseases to other species such as cattle and goat. This study was conducted to determine the serum antibodies to bacterial infectious diseases for brucellosis, tuberculosis (TB), paratuberculosis (Johne`s disease) in deer. Serum samples were randomly collected from 78 deer from 31 farms at Jeonbuk province, and 7 wild water deer from Jeonbuk wild animal treatment center during 2005 to 2007, respectively. Four farm deer (5.1%) showed antibodies to tuberculosis using Antigen Rapid Bovine TB Ab Test Kit. One elk (1.3%) and one wild water deer had antibodies for paratuberculosis. Antibody against Brucellosis was not detected in tube agglutination test (TAT) and enzyme-linked immunosorbent assay (ELISA). These data suggest that caution should be applied to inspection of velvet, deer blood and meat for human consumption from deer because of zoonotic bacterial diseases in deer. In addition, farmed deer can be a transmissible host for zoonotic disease to diary or raising farm.
강섬유 보강 초고강도 시멘트 복합체의 강도발현 특성에 관한 실험적 연구
소형석(So Hyoung-Seok),소승영(So Seung-Young) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.7
Recently, considerable effort has been invested in research and development more highly effective construction materials due to the increasing of the multi-storied and large-sized buildings. The ultra-high strength steel fiber reinforced cementitious composites (UHS-SFRCC) are an ultra-high strength and high ductility composite material with advanced mechanical properties,and has shown some promise in the civil engineering community. In this study, as a series of the planned research to develope the practical UHS-SFRCC considered an economical efficiency. various UHS-SFRCC were made by some experimental factors such as the type and replacement ratio of admixture material, use of an alkaline stimulant, curing conditions, and the influence of experimental factors on strength development of UHS-SFRCC was discussed with the microstructure of them. As a results, the total porosity of UHS-SFRCC was significantly reduced by using appropriate silica fume and blast furnace slag combined, in consequence, the compressive and flexural strength was increased. There was no effect of NaOH as an alkaline stimulant to improve the compressive and flexural strength of UHS-SFRCC.. The total porosity of UHS-SFRCC was significantly reduced by the steam curing (90℃, but the volume of pore diameters with large size in the composites was also increased. The UHS-SFRCC with the range of compressive strength 154MPa and flexural strength 33MPa was made using silica fume, blast furnace slag, quartz sand(below 0.5mm), steel fiber in the atmosphere curing condition of 20℃.