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조용진,고창두,강국진,Jo, Yong-Jin,Go, Chang-Du,Gang, Guk-Jin 선박안전기술공단 2001 선박안전 Vol.6 No.-
본 논문에서는 차세대 고속선에 적합한 선형의 하나로 거론되고 있는 삼동선의 개발 현황을 살펴보고, 실선으로의 가능성을 파악하기 위하여 적용 대상선을 2,500톤급 삼동형 함정으로 설정하여 개념설계를 수행한 결과를 보이고자 한다. 함정의 설계조건과 요구사항에 적합하도록 삼동선의 장점을 최대한 반영하여 초기 개념 설계를 수행하였으며, 이로부터 도출된 삼동선형의 유체역학적인 성능검토를 위해 저항추진, 내항 및 조종성능에 대한 연구를 수행하고 그 결과를 유사 단동선과 비교, 검토하였다. 연구결과의 가시화를 위하여 최종적으로 3차원 컴퓨터 그래픽 모델링하고, 실선의 1/100 축적모형을 제작하여 설계결과를 표현하였다.
조용진,정동윤,최홍대,박종희,손병화,Cho, Yong-Jin,Jeong, Dong-Youn,Choi, Hong-Dae,Park, Jong-Hee,Son, Byeng-Wha 한국생약학회 1998 생약학회지 Vol.29 No.3
Two isoflavonoids were isolated from the flowers of Pueraria lobata (Flos puerariae) guided initially fractionation based on brine shrimp lethality assay. The structures were identified as 4',5,7-trihydroxy-6-methoxyisoflavone (tectorigenin) and 4',7-dihydroxy-6-methoxyisoflavone (glycitein), respectively, on the basis of their spectroscopic and physicochemical evidences.
조용진(Yong-Jin Cho),한송이(Song-I Han) 한국해양공학회 2012 韓國海洋工學會誌 Vol.26 No.5
This study examined the use of LIT (lock-in infrared thermography) to detect defects in the welded parts of ships and offshore structures. A quantitative analysis was used with the filtering and texture measurement of image processing techniques to find optimized experimental condition. We verified the reliability of our methods by applying image processing techniques in order to normalize the evaluations of comparative images that showed a phase difference. In addition, it was found that a low to mid-range intensity of light exposure on the surface showed good results, whereas high exposure did not provide significant results. A lock-in frequency of around 0.1 Hz was satisfactory regardless of the intensity of the light source. In addition, making the integration time of the thermography camera inversely proportional to the intensity of the exposed light source during the experiment provided good results.
조용진(Yong-Jin Cho),고창두(Chang-Doo Koh),김성환(Seong-Hwan Kim) 한국해양공학회 1997 韓國海洋工學會誌 Vol.11 No.2
The technology of small and medium sized shipbuilding companies is lower relatively to major shipbuilding companies, and should be up-graded from the viewpoint of national economic development. In spite that hull form design is one of the most important elements with respect to shipbuilding technology, small and medium sized shipbuilding companies are incapable of developing hull form.<br/> In order to support technically such companies hull form development was carried out for G/T 999ton class tanker and D/W 4990ton class tanker which are the typical vessels operating in coastal area. The operating efficiency for the developed hull forms are improved by 30% for G/T 999ton class tanker and 24% for D/W 4990 ton class tanker respectively. The results of hull form development including ship model test and performance analysis are presented in this paper.