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박근혜정부의 지역정책에 있어서 지역생활권의 권역설정과 협력 거버넌스체제 구축의 정책과제
전경구(Chun, Kyung-Ku),조덕호(Cho, Deok-Ho) 한국지역개발학회 2013 韓國地域開發學會誌 Vol.25 No.4
This paper discusses issues and policy orientations for the new regional policy of the Park Geunhye government. The idea of the Regional Settlement Areas is the most important policy instrument of the Park Geunhye government which has been originated from the regional policy of the Lee Myung-bak administration. The Regional Settlement Areas are characterized by the unbounded region and cooperative governance among local governments which are important characteristics of the new regionalism. However, there are many important issues to be addressed. This paper discusses the problems and issues of the unbounded region and cooperative governance system. In particular since the policy of the Regional Settlement Areas is supposed to be organized and implemented by the cooperative governance system without the interventions of the central government, many obstacles are expected. In this context, this paper suggests a combined model of cooperative governance through the meta analysis. Based on the model this paper discusses some strategies and instruments for the promotion of regional governance system.
전경한(Kyung-Han Chun),이인수(In-Soo Lee) 한국정보기술학회 2013 Proceedings of KIIT Conference Vol.2013 No.5
충돌 회피는 스마트 차량에서 가장 어렵고 도전적인 자동운전 과제중 하나이다. 일반적으로 최적의 방법은 조향을 통한 회피인데 차량과 사람의 운전 특성을 반영한 알고리즘(경로)이 요구된다. 본 논문에서는 이러한 충돌회피를 구현하기 위하여 슬라이딩 모드 편요각 제어기를 제안한다. 3차 차량모델에 적용하였으며 차선변경 궤적을 고려한 편요각 속도를 추종하도록 하였다. 제안한 제어기의 안정성은 리아푸노브 함수를 이용하여 증명가능하며 시뮬레이션을 통해 차선변경을 위한 적절한 조향이 이루어짐을 보인다. Collision avoidance in the intelligent car is one of the most difficult and challenging control of automatic driving. In general, the optimal solution is to avoid by steering, and a path that reflects the characteristics of the vehicle and human driving is required. In this paper, we propose a sliding mode yaw controller for collision avoidance. The proposed method is applied to a 3rd-order vehicle model and it controls to follow the yaw rate considering the desired trajectory of lane change. the stability of the proposed controller is proved by Lyapunov function and we show the result of lane change by controlled steering through simulation.
전경한(Kyung-Han Chun),이인수(In-Soo Lee) 한국정보기술학회 2012 Proceedings of KIIT Conference Vol.2012 No.5
충돌 회피는 스마트 차량에서 가장 어렵고 도전적인 자동운전 과제중 하나이다. 일반적으로 최적의 방법은 조향을 통한 회피인데 긴급 상황에서 드라이버는 차량 조향보다 브레이크를 밟을 확률이 더 높다. 본 논문에서는 미래의 사고를 방지하기 위해 유망한 솔루션으로 보행자 충돌방지를 위한 퍼지제어기를 제안한다. 차량 속도와 횡거리 이동관측기를 이용한 퍼지 알고리즘으로 차량조향을 실시하며 시뮬레이션을 통해 차량 속도에 따른 적절한 조향이 이루어짐을 보인다. Collision avoidance in the intelligent car is one of the most difficult and challenging control of automatic driving. In general, the optimal solution is to avoid by steering, but in emergency situations, the driver are more likely to do braking more than steering. In this paper, in order to prevent future accidents, an automatic fuzzy steering controller is proposed as a promising solution. Velocity and position values are used as fuzzy inputs and an observer is utilized for latitudinal position. The proposed fuzzy algorithm controls the streering angle based on the speed of the vehicle and lane change. Simulation is carried out to show the results.
전경한(Kyung-Han Chun),이인수(In-Soo Lee) 한국정보기술학회 2014 Proceedings of KIIT Conference Vol.2014 No.5
본 논문에서는 네 개의 회전자를 가지는 무인 소형비행체에 대한 강인한 고도제어를 제안한다. 최근 많은 활용을 위해 다양한 형태의 무인 quad-roto 시스템이 사용되고 있는데 특히 소형의 경우 기상변화와 같은 외란에 영향을 받을 수 있으며 활용목적에 부합되는 장비의 부착으로 인한 시스템 파라미터의 변화 또한 제어 성능에 영향을 미칠 수 있다 이를 고려하여 환경변화나 시스템 변화에 무관하게 최초의 성능을 유지하면서 임무수행이 가능하기 위한 제어기가 필요하게 된다 그중에서도 카메라 같은 촬영장비의 경우 일정 고도를 유지하는 일이 주요한 요구 성능중 하나이다 이에 강인한 특성을 가진 슬라이딩모드 제어기를 이용한 고도 제어기를 제안하고 모의실험을 통해 그 성능을 입증한다. In this paper, we propose a robust altitude control for an unmanned aircraft with four rotors. Recently, a lot of different types of unmanned quad-rotor system are being used for various applications. Among them, in the case of small size aircraft, it can be affected by a disturbance such as wind and the weight of attached devices for a specific purpose can make changes in system parameters. Thus taking these into considerations, the controller is required to keep the performance with stability irrespective of disturbances and parameter variations. Especially, in the case of photographic equipment like the camera, to maintain a constant altitude is one of the most major tasks. Thus we design the sliding mode controller with a strong resistance to the uncertainties (disturbances and parameter variations) and the simulation demonstrates its performance.
전경구(Chun Kyung-Ku) 한국지역개발학회 2012 韓國地域開發學會誌 Vol.24 No.3
This paper examines the effects of education on the apartment prices. In particular this paper tries to probe interactions between education and other predictors with the hierarchical linear model. The interaction effects are evaluated by the simple slopes technique and the Johnson-Neyman technique. In the case study of Daegu metropolitan city, this paper suggests that the ratio of students entering the prestigious university such as Seoul National University is the primary variable of the education environment. With regard to the interaction effects, it is suggested that the good education performance turns out to be intra-class interaction with the average degree of apartment deterioration and inter-class interaction with the distance to the subway station. This study examines the significance of the focal predictors under the conditional value of the moderation variable, the education performance. This study suggests that the interactions are significant within a particular scope of the values of the focal moderation variables. This study also discusses future research orientations of the interaction effects of education in the context of the hierarchical linear model.