http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이만형,Lee, Man-Hyung 한국정밀공학회 1992 한국정밀공학회지 Vol. No.
In this study, the technique of adaptive control based on certainty equivalence for the input-output linearization of nonlinear system is investigated. It is shown that the upper bound of the parameter estimation error can be represented more explicitly than Teel et al's works. Another direct approach, which stows that the adaptive input-output linearing control laws using the normalized identifier yield bounded tracing, is also presented.
이만형,백운보,이권순,Lee, Man-Hyung,Baek, Woon-Bo,Lee, Kwon-Soon 한국정밀공학회 1992 한국정밀공학회지 Vol. No.
The heavy vibrations of vehicles on the severe off-road environment degenerate the stabilization proformance of the gunner primary sight. To improve the stabilization performance, the dynamic equations of the gunner primary sight were derived, and the stabilization systems were designed using VSC methods. The performances were compared with the Lead/Lag scheme. In the nonlinear simulation including real disturb ances and couloumb friction, it is shown that the VSC methods exhibit more effective stabilization.
비선호시설 입지에 관한 프로젝트 지체의 인과구조와 유량-저량 모형
이만형 ( Man Hyung Lee ),최남희 ( Nam Hee Choi ) 한국시스템다이내믹스학회 2006 한국시스템다이내믹스 연구 Vol.7 No.1
The purpose of this study is to find what factors are directly related to the delay of public projects, usually going beyond the planned deadline and budget. From a series of System Dynamics simulation works applied to the Cheongju Cremation Project, the research finds that the negative externalities originated from the adjacent location of the LULU(locally unwanted land use) facilities have exerted significant influence on dynamic perceptions of key stakeholders, typically resulting in project delay. As shown repeated experiments, the proposed negotiation-based models would produce relatively higher planning performance level than the typical approaches hinged on the administrative-expediency tactics. Even though the former may require more human and material resources in the very beginning stage, as they have to deal with diverse grievances raised by major stake-holders, most of them would bound for strengthening reinforcing loops within the complex structure. These results also imply that negotiation or consensus-building approaches would enhance mutual agreement among stake-holders, upgrading the overall quality of project management.
공간분석 기법에 기초한 주거지역 공간특성과 주거침입범죄와의 관계분석
이만형(Lee Man-Hyung),김정섭(Kim Jung-Sup),석혜준(Seok Hye-June) 대한건축학회 2007 대한건축학회논문집 Vol.23 No.11
This research focuses on Crime Prevention through Environmental Design(CPTED) method which is recently introduced in Korea. In specific, it investigates context deduction between spatial characteristics and burglaries in residential areas. Its basic analysis tool depends on Space Syntax(SS). This study collects a series of police data on robbery and theft which would be regarded as housing invasion types. It also figures out the key functions of SS variables in terms of connectivity, control value, and integration. In a comparative perspective between crime occurrence sites and non-crime ones, it calculates mean values of SS-related variables using independent T-test. For the in-depth analyses, it matches crime occurrences with various building types. Furthermore, it applies ArcGIS to measure the distances from crime spots to street lights. When this study applies Space Syntax methods to crime occurrences, the average mean values at crime occurrence sites are higher than those at non-crime sites. It implies the fact that building’s main type is pivotal in controlling crime rates. Furthermore, neighborhood facilities with meager territoriality seem extremely vulnerable to crimes. In terms of single detached housing units, it reveals relatively weaker characters in the night-time crime occurrences than those in the day-time ones. In contrast, there exists positive relationship between the distance from street lights and the night-time crime occurrences. All of these indicators imply that the CPTED approach is relevant in designing defensible space in our cities.