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RISS 인기검색어
- 검색키워드
- 저자 : 안종삼 (검색결과 4 건)
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전기철도 리액턴스 방식의 고장점 표정장치 신뢰성 향상에 관한 연구
안종삼 조선대학교 산업융합기술대학원 2016 국내석사
The world considers electric railways as a way to overcome environmental pollution problems and road traffic limitations in road traffic. Korea has implemented a system to invest 2% of GDP in low carbon green growth every year for the adoption of the carbon trading system specified in the Kyoto Protocol in 2010. If a fault such as a short circuit or a ground fault occurs on an electric railway, the power supply can not be completed until the completion of the recovery, and it is inconvenient for customers because it is difficult to use the train. In addition, it is essential to maintain and maintain stability and reliability to minimize failure times, because of the wide distribution of electric railways. In the high-speed railway feed system, a new reactance method is developed and utilized so that nonlinear reactance can be inputted. The reactance value of the tram line is measured and input separately. If a fault occurs, the reactance value is calculated only up to the fault point. The reactance value is firstly compared with the input reactance value, and the distance is converted. In this paper, to improve the reliability of the fault locator using the reactance method, a simulation using the fault locator and the reactance method based on the ground fault was performed. The result proves that even if the reactance changes, the current ratio of the contact protection wire enables a high strength representation. It is considered that the reliability of the electric railway can be improved through the reactance type fault locator.
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The role of the WC1 molecule in the function of rδ T lymphocytes
안종삼 Washington State University 2001 해외박사
Workshop Cluster 1 (WC1) is a highly glycosylated protein uniquely expressed on a subpopulation of γδ T lymphocytes in cattle. It is a member of the scavenger receptor cysteine rich (SRCR) superfamily that includes CD5, CD6 and CD163. WCl is comprised of 11 SRCR domains, a transmembrane segment, and a cytoplasmic tail. To elucidate the role of WC1 in the function of WC1+ γδ T lymphocytes, fusion proteins containing one or more SRCR domains of WC1 were constructed and used in immunohistochemistry to identify cells that express the WC1 counter receptor. In addition, studies were conducted to determine whether WC1+ γδ T lymphocytes are activated directly through WC1. RT-PCR was used to determine if WCl induces transcription of bovine CD69, an early activation molecule. Immunohistochemical analysis revealed WC1 domains 9 and 11 bind to macrophages, dendritic cells, and non-lymphoid cells present in the splenic capillary sheath. RT-PCR analysis revealed CD69 is transcriptionally activated in WC 1+ γδ T lymphocytes within 4 hr after stimulation with anti-WC1 monoclonal antibody. These studies have identified cells that express the WC1 counter receptor and demonstrated WC1+ γδ T lymphocytes can be activated directly through WC1.
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