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음향방출시험 기술을 이용한 수소충전소용 복합용기 안전진단
김광복(Kwang-Bok Kim),김봉기(Bong-Gi Kim),우진호(Jin-Ho Woo),김창일(Chang-Il Kim),송기명(Gi-Myung Song),한주봉(Joo-Bong Han),이병일(Byeong-Il Lee),구경완(Kyung-Wan Koo) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.10
첨단 비파괴 진단 기술의 하나로 폭넓은 응용분야와 뛰어난 정밀성으로 각광받고 있는 AET 기술을 이용하여 수소충전소용 복합저장용기 안전진단 기술을 소개한다. 본 논문에서는 폴리이미드 라이너 위에 CFRP 와인딩 및 레진으로 건조된 Type-IV 구조의 용기로 시험하였다. 사용압력 700bar로 설계된 수소저장용기에서 ASME 코드 절차서에 따라 가압시험과 동시에 AET 시스템으로 결함 인자신호를 수집 및 건전성 유무에 대한 결과를 제시하였다.
서영배 ( Young Bae Seo ),구봉기 ( Bong Gi Koo ),이용구 ( Yong Koo Lee ),이영철 ( Young Cheol Lee ) 대한본초학회 2003 大韓本草學會誌 Vol.18 No.2
N/A Objectives This study was carried out for the purpose of knowing the effect from T-cell activation of the C57BL/6 mouse by the extraction from a extract of herba lobeliae chinensis(EHLC.). Methods We examined the influence of EHLC on T cell proliferation by using T cell gained in spleen and thymus gland of C57BW6 mouse. Also we examined cytotoxicity through SBR assay and immunocell through FACScan Results : The results were obtained as follows: 1. In order to know the effect of the cytotoxicity from extraction of EHLC, we had to examine the safe density of that on lung fibroblast cells of the mouse(mLFCs). EHLC did not show cytotoxicity against mLFCs. 2. In the proliferous effect of thymus T cells, water extracts of EHLC played an important role on the proliferating thymus T cells compared with control group at low density. 3. EHLC promoted the CW(B7-1) and Thl cytokines especially IL-2 gene expression, but decreased CTLA-4, IFN-V, CD28 and Th2 cytokines IL-4 gene expression. 4. EHLC up-regulates CD44`CD69`CD25`, CD4`CD25`, CD8`CD25`, CD3`CD80` expression but not CD3^(+)CD28^(+) by anti-CD3-stimulated T cells. Conclusions : above results indicates that EHLC play an important role in the activati on of autoreactive T cells by promoting Thl cytokine(I1-2) and dec reasing CTLA-4, IFN-Y, CD28 and Th2 cytokines II-4 gene expressi on, by up-regulating cell surface molecule(CD80, CD25, CD44). The refore further deep studies shoud be accomplished about its effects.
김창근,김봉기,구명모 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14
In this paper, we present a shell interface of expert system which complement the weak points of existing expert system using World Wide Web as user interface. The sell interface is independent of development environment and minimize the overload of client. This centralized management system connects with server program and WWW through a socket and CGI communicates with intermediator. The intermediator runs the shell of expert system as sub-processor, they communicate with each other by pipe. The shell of expert system redirects a standard I/O to the pipe and synchronizes the I/O because it is an interactive system.