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이종무(Chong-Moo Lee),최현택(Hyun-Taek Choi),김기훈(Kihun Kim),여동진(Dong Jin Yeo),이판묵(Pan-Mook Lee) 한국해양공학회 2011 韓國海洋工學會誌 Vol.25 No.1
The previously developed method of estimating the propulsion performance of a UUV was applied to the high speed UUV, which is propelled by commercial thrusters. The thrusters were selected with an overdesign mentality; in other words, their capacities were excessive. At that point, the designer's concern was focused on a question regarding at what rpm the UUV could reach the design speed. Because the developed method required thrust coefficient curve data, the researchers asked for the POW data of the thrusters from the manufacturer. From the data, the researchers extracted the thrust coefficient and estimated the rpm value of design speed for the UUV. Finally, the researchers compared the estimated value and the result from a self-propulsion test using a VPMM (Vertical planar motion mechanism) test at a towing tank in MOERI.
이종무(Chong-Moo Lee),김기훈(Kihun Kim),변성훈(Sung-Hoon Byun) 한국해양공학회 2018 韓國海洋工學會誌 Vol.32 No.4
Most underwater acoustic arrays for low frequency operation are deployed vertically, but a mid-range frequency horizontal array system is being developed by the Korea Research Institute of Ships and Ocean Engineering (KRISO). The horizontal array platform is deployed underwater and kept in place by weather vaning mooring. This is essential because it is nearly impossible to keep a submerged body at a given position in the water without any external force. Hence, the horizontal array platform can maintain the desired position in the presence of a weak tidal current. The objective of this study is to design an underwater platform that can maintain its horizontal position in a weak current. First, the authors investigated various virtual models, selected one of the models, and performed a small model test of the selected model at a basin. We calculated the external forces associated with the 2D motion, and then we conducted a large basin test followed by a circulation water channel test for the manufactured array platform. The results of the simplified 2D motion calculation essentially matched the results of the underwater test.
이종무 ( Chong Moo Lee ),박세근 ( Se Geun Park ),유재영 ( Jai Young Yoo ),김춘추 ( Choon Choo Kim ),강성구 ( Sung Koo Kang ),김예회 ( Re Hwe Kim ),김주현 ( Joo Hwen Kim ) 대한내과학회 1973 대한내과학회지 Vol.16 No.12
1n 1942 Klinefelter, Reifenstein and Albright described a syndrome which was consisted of gynecomastia, eunuchoidism, small atrophic testes and increased excretion of gonadotropine. The atrophic testes was characterized dy hyalization and as ermatogenesis.
반자율무인잠수정의 수중 복합항법 시스템 성능평가를 위한 회전팔 시험
이종무(CHONG-MOO LEE*),이판묵(PAN-MOOK LEE),김시문(SEA-MOON KIM),홍석원(SEOK-WON HONG),서재원(JAE-WON SEO),성우제(WOO-JAE SEONG) 한국해양공학회 2003 韓國海洋工學會誌 Vol.17 No.4
This paper presents considerations on the results of the rotating arm test, which was carried out for assessment of an hybrid navigation system for a semi-autonomous underwater vehicle. The navigation system consists of an inertial measurement unit (IMU), an ultra-short baseline (USBL) acoustic navigation sensor and a doppler velocity log (DVL) accompanying a magnetic compass. A navigational systemmodel is derived to include the scale effect and bias errors of the DVL, of which the state equation composed of the navigation states and sensor parameters are 25 in the order. The extended Kalman filter was used to propagate the error covariance. The rotating arm tests were carried out in the Ocean Engineering Basin of KRISO, to generate circular motion. The hybrid underwater navigation system shows good tracking performance against the circular planar motion. Additionally this paper checked the effects of the sampling ratio of the navigation system and the possibility of the dead reckoning with the DVL and the magnetic compass to estimate the position of the vehicle.
한국정상인 , 당뇨병 및 간경변증례에 대한 정맥주사 ( 1 시간 ) 당부하 시험
이종무 ( Chong Moo Lee ),차규철 ( Kyu Chul Cha ),민병석 ( Byong Sok Min ),윤백현 ( Baek Hyun Yoon ) 대한내과학회 1969 대한내과학회지 Vol.12 No.9
Because of advantages of one-hour intravenous glucose tolerance test in certain cases of diabetes mellitus over other test, the authors intend to report the data in the Korean subjects. One-hour intravenous glucose tolerance test was undertaken in 50 cases