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고석현,박민,진항,차일호,지준근 순천향대학교 부설 산업기술연구소 2013 순천향 산업기술연구소논문집 Vol.19 No.2
With the fusion of IT and technology, intelligent vehicle is an advanced vehicle in consideration of safety and convenience. Intelligent vehicle technology protects passengers and driver from dangerous situations or traffic accidents such as collision. It is a technique which is able to avoid and reduce traffic accidents. In this paper, we implemented an unmanned intelligent vehicle that defines the direction of the vehicle by controlling the servo motor and sensor signal processing in freescale's MCU. Control of servo motor is to maintain the angle of the servo motor with feedback control of PWM scheme. We implemented a line tracing algorithm using the C language program in code warrior environment. With the speed control by the line tracing, unmanned intelligent vehicle can be used to maintain the distance between the preceding vehicle quickly and to finish the track without collisions.
바닷물과 조개에서 패혈증비브리오균 증식에 대한 천연물의 항균 효과
홍영진,류필열,김승용,염경민,박정업,조세진,궈루이홍,트란더베치,진항,김영란 한국식품과학회 2020 한국식품과학회지 Vol.52 No.1
Vibrio vulnificus, an opportunistic pathogen, causes septicaemia when raw shellfish and fish are eaten by patients with hepatic diseases or reduced immunity. In this study, we evaluated inhibitory effects of some natural products on V. vulnificus growth using 96-well microplate assay. We found that Phyllanthus emblica L., Rosa chinensis Jacq., Rosa rugose Thub., and Chukrasia tabularis A. Juss. significantly inhibited V. vulnificus growth in Luria-Bertani (LB) broth. Among these four extracts, the inhibition diameter of Chukrasia tabularis was 16.00 ± 0.58 mm in disc diffusion assay on V. vulnificus growth. In addition, these four natural products protected HeLa cells from V. vulnificus-induced cytotoxicity. A cocktail containing these four products showed an inhibitory effect on V. vulnificus growth in seawater and shellfish by reducing its growth by 75.7% and 97%, respectively. These results suggest that these four natural products are safe and effective natural antimicrobial candidates to prevent V. vulnificus infection.