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잠수함 개념설계에 모델기반 시스템 엔지니어링을 적용하기 위한 방법에 대한 연구
배정훈,김병목,김미희,신성철,김수영,안진우,Bae, Jeong-Hoon,Kim, Byung-Mok,Kim, Mi-Hee,Shin, Sung-Chul,Kim, Soo-Young,An, Chin-Woo 한국시스템엔지니어링학회 2013 시스템엔지니어링학술지 Vol.9 No.2
Because submarine is high-technology and very complex system, it takes a lot of time, cost and manpower for design. For efficient concept design, application of systematic method is required such as system engineering. In this study, we studied application method of MBSE for submarine concept design with SWBS (Ship Work Breakdown Structure). Components of submarine system from SWBS were classified and organized as system architecture with 'Vitech CORE'. Through the MBSE application for concept design, systematic, efficient and traceable concept design of submarine was considered.
배정훈 ( Jeong Hoon Bae ),김연희 ( Yeun Hee Kim ),박인양 ( In Yang Park ),황성진 ( Seong Jin Hwang ),손정빈 ( Jung Bin Son ),김현경 ( Hyun Kyung Kim ),이동현 ( Dong Hyun Lee ),최은주 ( Eun Ju Choi ),이석우 ( Suk Woo Lee ),신종철 ( 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.6
Objective : Threatened abortion, one of the most common problems of pregnancy, develops 15-20% of pregnant women and progresses into the abortion in 20-50%. It is related to many obstetrical sequelae. We analyzed the prevalence of complication, disruption of pregnancy and the effect of recent treatments. In ultrasonographic examination, we divided all cases into two groups according to existence of hematoma. We compared the difference of two groups about the prognosis of pregnancy and maternal serum concentration of FP. Methods : A total 88 cases of threatened abortion and 5741 cases of normal pregnancy were studied from Jan., 1999 through Dec., 2003 at St. Paul Hospital in Seoul, Korea. We analyzed age, gestational age of menstruation and ultrasonogram, parity, results of triple test, existence of hematoma, efficacy of treatment. In all cases, we carrided out ultrasonic examination with LogiQ-400 (General Electronics Medical System, Tokyo, Japan). We checked the concentration of FP from triple test. Results : The mean gestational age at diagnosis was 9.2±3.4 weeks. After threatened abortion, successful cases were 71 and mean gestational age at diagnosis was 9.6±3.6 weeks. In comparison with 17 unsuccessful cases, whose mean gestational age at diagnosis was 6.6±1.8 weeks, it was thought to be significant differences (p=0.001). The success rates of pregnancy prolongation between groups of different treatments modalities are nearly similar. Existence of hematoma seems to have little impact on prognoses of pregnancy outcome and there were no meaningful differences of maternal serum FP concentration. Conclusion : In this study, we could find no difference between the groups those were treated with various methods. We thought that more systematic analysis about the treatment of threatened abortion would be needed. Un the cases that were diagnosed threatened abortion at later gestational age, we could find obvious improvement of the pregnancy outcome. So we conclude that gestational age at the diagnosis is potential parameter of prognosis.
배정훈 ( Jeong Hoon Bae ),안현영 ( Hyun Young Ahn ),이지현 ( Jee Hyun Lee ),권인 ( Kwon In ),문희봉 ( Hee Bong Moon ),김사진 ( Sa Jin Kim ),신종철 ( Jong Chul Shin ),나종구 ( Gong Gu Ra ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.4
Lymphangiomas are congenital malformations of lymphatic vessels that have the potential to infiltrate surrounding structures. In 95% of cases, they are located in the neck (cystic hygroma), head and axilla. But they can occur in a variety of anatomical lo
풍향에 따른 화재영향을 고려한 FPSO 상부구조물 고압가스 모듈내부의 장비 최적배치 연구
배정훈(Jeong-hoon Bae),정연욱(Yeon-Uk Jeong),신성철(Sung-Chul Shin),김수영(Soo-Young Kim) 한국해양공학회 2014 韓國海洋工學會誌 Vol.28 No.5
The purpose of this study was to find the optimal arrangement of FPSO equipment in a module while considering the economic value and fire risk. We estimated the economic value using the pipe connections and pump installation cost in an HP (high pressure) gas compression module. The equipment risks were also analyzed using fire scenarios based on historical data. To consider the wind effect during a fire accident, fuzzy modeling was applied to improve the accuracy of the analysis. The objective functions consisted of the economic value and fire risk, and the constraints were the equipment maintenance and weight balance of the module. We generated a Pareto-optimal front group using a multi-objective GA (genetic algorithm) and suggested an equipment arrangement method that included the opinions of the designer.