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승상준(Sang-jun Seung),이지환(Ji-hwan Lee),조민제(Min-je Jo),신춘호(Chun-ho Shin),김도연(Do-yeon Kim),박양우(Yang-woo Park) 한국컴퓨터정보학회 2021 한국컴퓨터정보학회 학술발표논문집 Vol.29 No.1
본 논문에서는 ROS(Robot Operating System)를 기반으로 한 로봇(Robot)에 LiDAR 센서를 설치하여 SLAM(Simultaneous Localization and Mapping) 기술인 동시적 위치 추적 지도 작성 기법을 이용하여 실내 맵 정보를 습득하고, 이를 기반으로 장애물과 건물 실내를 안전하고 정확하게 이동할 수 있도록 하였다. 또한 로봇에 자바에서 제공하는 개발 툴킷 Swing 및 AWT 라이브러리를 이용하여 GUI(Graphical User Interface)를 구현하였고 터치스크린을 장착하여 사용자가 원하는 제품을 선택하고 선택한 제품의 목적지를 습득한 맵을 토대로 좌표 값을 설정하여 ROS에서 지원하는 이동 프로세스를 실행시켜 목적지까지 경로를 설정하고 자율 주행하게 된다.
이은방(Eun Bang Lee),정수연(Soo Youn Chung),이숙영(Sook Young Yi),류항묵(Hang Mook Rheu),승상애(Sang Ae Seung),양지선(Ji Sun Yang),유태무(Tae Moo Yoo) 한국응용약물학회 1998 Biomolecules & Therapeutics(구 응용약물학회지) Vol.6 No.3
These studies were conducted to investigate the antiinflammatory effects and the mechanism of action of natural products. We used the methods of carrageenan induced foot edema , PAF (platelet activating factor) induced foot edema , inhibition test of vascular permeability, inhibition test of white blood cell migration, formation of granuloma and adjuvant induced arthritis to examine the antiinflammatory effects of Angelica gigas, Ledebouriella seseloides, Ginkgo biloba and Bamboo salt (Jukyom). The oral administration of the water extract of Angelica gigantis radix, the methanolic extract of Ginkgo folium and the aqueous solution of Bamboo salt showed antiinflammatory effect on carrageenan and PAF induced foot edema in SD rat at a dose of 1 g/kg. The same administration of methanolic extract of Ginkgo folium also inhibited the vascular permeability in mice. The aqueous solution of Bamboo salt inhibited the formation of granuloma in SD rats at a oral dose of 1 g/kg. Angelica gigantis radix seems to have antiinflammatory effect by inhibition of PAF.
서양우,윤정환,이승상,엄천섭,Seo, Yang Woo,Yoon, Jung Hwan,Lee, Seung Sang,Um, Chun Sup 한국시스템엔지니어링학회 2020 시스템엔지니어링학술지 Vol.16 No.2
In this paper we proposed the test design method of reliability growth management. First, we presented the process for establishing the reliability growth management test design considering the number of failures and the termination test time. Reliability growth analysis of continuous system was performed in accordance with the test design process presented. In case the reliability test result is not met with the reliability target value after more than three failures occurred, the required test times were analyzed that 1,725 hrs for one corrective action, 1,950 hrs for two corrective actions. If the number of failures is less than three, design a reliability demonstration test according to confidence level 80% and 90% was performed using RGA 11 Software. As a result, it is possible to establish the reliability growth management test design with sufficient use of available resources. The results of this study can be used when establishing a test design for assessment of reliability growth management of all continuous systems.