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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.
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.
계층화 분석 방법(AHP)을 활용한 청주시 균형발전사업의 상대적 중요도 및 우선순위 분석
이만형(Man-Hyung Lee),전병윤(Byeong-Yun Jeon),최정석(Jeong-Seok Choi) 한국산학기술학회 2021 한국산학기술학회논문지 Vol.22 No.10
본 연구의 목적은 계층화 분석 방법(AHP) 방법을 적용하여 통합 청주시에서 추진하는 균형발전 사업(특별회계)을 대상으로 중요도와 우선순위를 분석하고, 나아가 상위 30개 사업을 도출하여 정책적 시사점을 제시하는 데에 주어진다. 계층화 방법을 적용하기 위해서 청주시에서 추진 중인 균형발전 사업(특별회계)을 대상으로 상위 계층 요인과 하위 계층요인을 도출하였다. 분석의 주요 결과는 다음과 같다. 첫째, 균형발전 사업(특별회계)을 추진할 때에 효율성 측면에서 사업이 장기적으로 중단되는 경우보다는 원활하게 사업을 진행할 방안을 고려해야 한다. 둘째, 하위계층 요인에서 도시 · 생활시설(0.096)과 교통시설(0.093) 관련 요인에 대한 중요도에 따라서 지역주민들이 생활편의와 관련된 시설로서 생활 여건 개선과 도농 간 접근성을 높일 수 있는 교통시설 관련 사업을 고려해야 한다. 셋째, 청주시 구별로 균형발전 사업건수를 구분하면, 청원구가 17개(36%)로 가장 많았으며, 사업유형별로 도시 · 생활시설 사업이 유의미한 고용유발효과를 미친 것으로 분석되었다. This study primarily aims at analyzing the relative importance and priority of balanced development projects (Special accounts) implemented by the Consolidated Cheongju City. Applying Analytic Hierarchy Process (AHP) models, this study derived the top 30 projects and presented a series of policy implications. Both the upper and lower class factors were targeted for the balanced development projects (special account) carried out by Consolidated Cheongju City. The major findings are as follows: First of all, while promoting balanced development projects (special accounts), the government should consider various ways of realizing them more smoothly rather than suspending the project for a long time. Secondly, reflecting upon the importance of indices of urban living facilities (0.096) and transportation facilities (0.093), residents should consider ways to improve the living environment and upgrade accessibility between urban and rural areas. Thirdly, in terms of regional distribution, Cheongwon-gu accounted for 17 projects (36%). Among various project types, the highest number of projects are urban and living facilities projects, exerting a significant impact on employment.
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.