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코리올리스 질량유량계의 유량측정에 영향을 미치는 인자에 관한 실험적 연구
임기원,이완규,Lim, Ki-Won,Lee, Woan-Kyu 대한기계학회 2003 大韓機械學會論文集B Vol.27 No.12
Coriolis mass flowmeter(CMF), which can measure the mass flow directly, is getting rapid attention for the industrial and custody transfer purpose. In order to study the characteristics and the applicability of CMF, it is tested with the national flow standard system. Two types of sensing tube, U-type and straight type, are employed in the test. Water, spindle oil and viscosity Standard Reference Material whose viscosities are 1, 20 and, 67 $\textrm{mm}^2$/s, respectively, are studied. It is shown that the linearity of CMF is getting deteriorated as the fluid viscosity increases, which is due to the zero drift and the relaxation time of the fluid. To test its applicability in the case of high pressured gas, it is calibrated using compressed air, It shows 1∼l.6 % deviations compared to the calibration results using water. It concludes that the fluid velocity in CMF should be lower than the sonic velocity. In addition, the effects of the vibration from the pipeline and pump on CMF as well as the long term stability are studied.
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이병국(Lee Byung Gook),박윤범(Park Yun Beom),이완규(Lee Woan Kyu) 한국정보처리학회 1996 정보처리학회논문지 Vol.3 No.6
The Hnagul font design system by using Hangul automata is more economical than other system in terms of the time to generate whole Hangul font set. In order to obtain good quality of Hangul font by this system, it is known that more Hangul jamo font primitives and combining rules are required. In this paper, we present an effective combining rules in order to generate Hangul font set and to provide an integrated capabilities in Hangul font design environment.
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고한우,이완규 ( Han Woo Ko,Woan Kyu Lee ) 한국센서학회 1995 센서학회지 Vol.4 No.3
One of principal causes of car accidents is low arousal level of driver. Drivers arrive their destination under an appropriate arousal level. Basic research was done to develop a portable arousal monitor and to evaluate the arousal level of drivers. An arousal monitor which can simulantaneously measure the skin impedance change and EEG was designed and tested. The relationship among three parameters was studied and was used to determine the finder of skin impedance Level depending on arousal level.
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피부 전기화동을 이용한 휴대형 각성도 측정 및 제어 시스템
고한우,이완규,김연호 ( Han Woo Ko,Woan Kyu Lee,Youn Ho Kim ) 한국센서학회 1996 센서학회지 Vol.5 No.3
To control arousal level using physiological index, electrodermal activity signal was detected and separated into skin impedance level and response. Arousal state decision and control algorithm was studied to implement and evaluate real time portable arousal control system. The implemented system can detect and control arousal state from initial drowsy state. This system oil be applicable to the evaluation of the effect of warning signal, driver`s drowsy detecting system, and sleep study.
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졸음운전 방지를 위한 각성도 측정 및 분석 시스템(Ⅰ)
고한우(Han-Woo Ko),이완규(Woan-Kyu Lee),김창호(Chang-Ho Kim) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_1
One of principal causes of car accidents is low arousal level of driver.<br/> Drivers arrive their destination under an appropriate arousal level. Comparative study between sleep lest and hogh way road test was done to develop a portable arousal monitor and to evaluate the arousal level of drivers. An automatic anaiysis software to measure the SIR interval and SIL index was developed and tested.<br/>
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방재 연구개발 분야의 정부 부처간 역할 조정에 관한 연구
박정한,최규현,김영수,정성훈,이상혁,이평구,이완규,Park, Jung-Han,Choi, Gyu-Hyun,Kim, Young-Soo,Jung, Seong-Hoon,Lee, Sang-Houck,Lee, Pyeong-Koo,Lee, Woan-Kyu 대한자원환경지질학회 2008 자원환경지질 Vol.41 No.3
방재분야에서 가장 발달된 장비와 과학기술을 이용하여 많은 연구개발이 이루어져서 재산 피해를 줄이고 인명을 구하고 있다. 비록 정부가 방재 분야를 확대하려고 노력해 왔지만, 그 투자 규모와 연구 결과는 국내의 타 과학기술 분야나 선진국의 방재분야에 비해 낮은 수준에 머물러 있다. 그렇지만 재난을 방지하는 국가부처인 소방방재청이 2004년 6월에 설치되어, 여러 가지 재난에 효과적이고 정비된 체계를 갖추게 되었다. 이 연구에서는 정부의 투자비용을 산정하고 방재분야와 관련된 영역을 명확히 규명하였다. 또한 방재에 관한 연구개발에 대하여 정부의 각 부처간에 임무를 분석하여 역할 분담에 대해 논의하였다. 이러한 역할 분담은 정부의 승인 절차를 통하여 공고히 하게 되었다. A number of researches on disaster risk reduction using the most advanced equipments and scientific technologies have been performed to minimize the damage of property and to protect human life. Although the Korean government is trying to enlarge the research area for disaster risk reduction, the investment size and the applicable results in this area have stayed in the lower level comparing to other scientific fields in Korea and the same field in advanced countries. However, the National Emergency Management Agency (NEMA), a government Agency which is responsible for disaster management coordination, was established in June 2004 establishing an efficient and well-organized system to cope with various disasters. In this study, investment size by the government was evaluated and associated areas were also identified. We also analyzed the roles on research and development for disaster risk reduction among different government Ministries were analyzed and role assignment to each Ministry was proposed. The role assignment has been concreted by conducting the process of approval in the government.
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이창기,이완규,전병실 전북대학교 전자산업개발연구소 1991 전자산업연구 Vol.2 No.-
This paper proposed a neural computer architecture for the learning of character pattern recognition categories. The architecture of self-organizations and self-stabilizations is recognition codes in response to arbitrary orderings of many and complex binary input patterns. Top-down attentional and matching mechanisms are critical in self-stabilizing of the code learning process. The architecture embodies a parallel search scheme which update itself adaptively as the learning process unfolds. After learning self-stabilizes, the search process in automatically disengaged. Thereafter input patterns have directly access to their recognition codes without any search. Thus recognition time does not grow as a funtion of code complexity. A novel input pattern can directly access a category if it shares invariant properties with the set of familiar exemplars of that category in the form of learned critical feature patterns, or prototype. Attentional vigilance determines how fine the learned categories will be. If vigilance increases due to an environmental disconfirmation, then the system automatically searches for and learns finer recognition categories. The simulation of this system shows satisfied result in the recognition of the hand written character of hangul.
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