http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
盧興植 안성산업대학교 1988 論文集 Vol.20 No.-
This report deals with the debt problem of farmers in Korea. Farmers have been struggling from the increasingly heavy debt burden, due to the traditional way of operating farms on a small-scale basis. In contrary to the rapid development of industrialization process in the cities, the famers, on the opposite, have been lagging behind, faced to cultivate the crops under increasingly difficult situation. Therefore, this paper will show the present situation of the debt problem of farmers in Korea and examine the chief factors that make up the debt problem. Particularly, it should be noted that the debt problem should no longer be considered as a negative influence on the agricultural production due to its lowering effect on the standard life of farmers, since the debt itself can be used as a means to reinvest to secure more production in the long ren. Finally, this paper concludes that the government should make efforts to encourage the farmers to increase agricultural as well as non-agricultural production under the long-term debt reduction policy. In order to do so, it is important that the farmers themselves try their best to reduce the debt by overcoming the present situation of farming conditions, than to rely solely on the government policies,
묘사함수를 이용한 퍼지 제어 시스템의 자기진동 현상의 예측 - 정적 경우
김은태,노흥식,김동연,박민용 대한전자공학회 1998 電子工學會論文誌, C Vol.c35 No.3
The self-excited oscillation is the phenomenon which can be observed in the systems composed of nonlinear elements. The phenomenon is of fundamental importance in nonlinear systems and, as far as the design of a nonlinear system is concerned, it should be considered along with the stability analysis. In this paper, the oscillation of a system controlled by a static nonlinear fuzzy controller is theoretically addressed. First, the describing functionof a static fuzzy controller is derived and then, based on the derived describing function, self-excited oscillation of the system controlled by a static fuzzy controller is predicted. To obtain the describing function of the static fuzzy controller, a simple struture is assumed for the fuzzy controller. Finally, computer simulation is included to show an example where the describing function given in the paper is used to predict the self-excited oscillation of a fuzzy-control system.
거리 형태 히스토그램을 이용한 이동로보트의 장애물 회피 주행
김현태,노흥식,조영완,박민용 대한전자공학회 1996 전자공학회논문지-B Vol.b33 No.12
A new local path planning algorithm using DPH (distance profile histogram) is suggested in this paper. The proposed method makes a grid type world map using distance values from multiple ultrasonic sensors and genrates local points through which the mobile robot can avoid obstcles safely. The DPH (distance profile historgram) represents geometrical arrangement of obstacles around the robot in the local polar coordinate system which is assumed to be atached to the robot. To control robot's navigation, a three-layered control structure is adopted. The proposed local path planning algorithm is placed on the top level. And a point-to-point translation controller takes the middle level. The bottom level consists of a velcoity servo and sonar driver modules which take charge of driving physical hardwares. The validity of the propsoed method is demonstated through several experiments.
묘사함수를 이용한 퍼지 제어시스템의 자기진동 현상의 예측-동적 경우
김은태,노흥식,권철,김동연,박민용,Kim, Eun-Tai,Noh, Heung-Sik,Kwon, Chul,Kim, Dong-Yon,Park, Mig-Non 대한전자공학회 1998 電子工學會論文誌, C Vol.c35 No.5
This paper deals with the self-excited oscillation of a system that is controlled by a dynamic nonlinear fuzzy controller. The self-excited oscillation can be observed in the systems composed of nonlinear elements and its analysis is as important as that of stability in the design of nonlinear systems. by using the frequency transfer function analysis known as the describing function method in nonlinear control theory, the oscillation is theoretically predicted. First, the describing function of a dynamic fuzzy controller is derived and then, based on the derived describing fuction, self-excited oscillation of the system controlled by a dynamic fuzzy controller is predicted. To obtain the describing function of the dynamic fuzzy controller, a simple structure is assumed for the fuzzy controller.