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고속 세틀링과 고정밀 위치 제어를 위한 모드 변경 제어 기법
김정재,최영만,김기현,권대갑,홍동표,Kim, Jung-Jae,Choi, Young-Man,Kim, Ki-Hyun,Gweon, Dae-Gab,Hong, Dong-Pyo 한국반도체디스플레이기술학회 2006 반도체디스플레이기술학회지 Vol.5 No.4
Recently, with rapid development of digital media like semiconductor and large flat panel display, the manufacturing equipment is required to have high precision over large travel range. Moreover it should have high product throughput. To achieve high product throughput, a controller should perform fast point-to-point motion and high precision positioning after settling in spite of external disturbances or residual vibrations. We proposed a new mode switching control algorithm with an application to dual stage for long range and high precision positioning. The proposed algorithm uses a proximate time-optimal servomechanism for the fast settling and a time-delay controller for the high precision positioning. Experimental results show that the proposed method enables smooth mode switching and improves the settling time and the precision accuracy after settling by over than 33% and 45%, respectively.
복원사업을 중심으로 한 도심하천의 장기간 수생태계 평가
김정재,권석철,어남규,안광국 한국환경생태학회 2018 한국환경생태학회 학술대회지 Vol.2018 No.2
이 연구의 목적은 대표적 도심하천인 갑천에서 복원사업을 중심으로 2007-2016년도까지의 이화학적 수질, 물리적 서식지 건강도, 생태학적 건강도를 어류를 이용한 다변수 모델(Index of Biological Integrity, IBI) 및 질적 서식지 평가 모델(Qualitative habitat evaluation index, QHEI)를 이용해 평가하는 것이다. 연 평균 총인(Total Phosphorus)은 10년 동안 13배 가까이 감소해왔으며, BOD값은 50%이상 감소하는 것으로 보아, 영양염류의 감소와 유기물 오염의 감소가 이루어졌음을 나타냈다. 그러나 어류의 군집 특성을 이용한 분석 결과, 10년간 일부 민감종 비율이 증가한 것을 제외하고는 큰 변화가 없는 것으로 나타났다. 물리적 서식 지 평가 모델(QHEI)을 이용한 결과 하류로 가면서 일부 구간에서 뚜렷한 물리적 서식지 교란이 발생하고 있음이 나타났다. IBI와 QHEI, 이화학적 수질 변수간의 상관분석 결과 QHEI값과 IBI값간의 통계적으로 매우 유의한 양의 상관관계가 나타났으며(r = 0.569, p<0.001) 그 밖에 총질소(Total Nitrogen) 및 생화학적 산소 요구량(Biochemical Oxygen Demand, BOD), 화학적 산소 요구량(Chemical Oxygen Demand, COD), 총 부유물질과 통계적으로 유의한 음의 상관관계(r >-0.3, p<0.05)를 나타냈다. 이는 도심 하천에서 장기간 수질 오염의 개선이 이루어져도 물리적 서식지 건강도가 회복이 되지 않으면 수생태계 건강성의 회복이 제한되는 것으로 보인다.
高層아파트 主立面 디자인에 관한 硏究 : 視知覺的 측면을 중심으로
金正在,李光永,姜智秀 경북대학교 산업기술연구소 1991 産業技術硏究誌 Vol.19 No.-
The aim of this study is to search for correlation of visual experience with the design elements of main facade in high-rise apartment house and their formal characteristics. The main interest is to know how visual experience changes in accordance with the variation of formal characteristics and which formal characteristics have great influence on visual experience in high-rise apartment house.
庶民아파트 居住者의 住居空間 認識態度와 政策的 解決方案에 關한 硏究
金正在,李光永 경북대학교 산업기술연구소 1991 産業技術硏究誌 Vol.19 No.-
The object of this study is that resolve housing problems and physical dwelling space problem that considered income in resident of low-income apartment. First of all, to solve these problems, this paper analyze housing policy of low-income apartment in korea, and make clear solutions of these problems. On the basis of it, this study operate field survey and literature study to make result appropriate house size of low-income resident that considered their income. The conclusions that obtained from this study are as follows: 1) In case we think income of low-income people on physical demension, Appropriate dwelling size for them is approximately 20 pyeung and number of rooms is three. 2) In developing low-income house, A role of the National Housing Corporation and Municipal Development Corporation must be reconsidered and are balanced with private Management Corporation. 3) In physical demension, the residents of low-income apartment classify and evaluate dwelling space to six factors: factor one is related space arrangement, fartor two is related room size, factor three is related equipment and sanitation, factor four is related service space, factor five is related form of inner space, factor six is related housing size. There fore, when architects plan low-income residence space, they should be consider and classify these meaning demensions, and make plan dwelling space that is considered each factor's importance.
選好度 評價에 따른 住居建築 外觀의 體系化에 關한 硏究
金正在 慶北大學校 1988 論文集 Vol.45 No.-
In this studty the main concern is given to the exterior design of the dwellings, a structure of polyhedron. With the facade as the main side, all parts of a house including the roof, the eaves, the walls, the windows or even the stylobate were analyzed in view of their functional, traditional, aesthetic and environmental aspects to form a concrete and logic theory of external shapes. First, seven types of the first floor plan were selected on the basis of nine divisions. Next, The seven types of the second floor plan were obtained from the zone division method of S.A.R. developed by H.J. Habraken and the three-kan division concept of the traditional Korean dwellings. By applying the Muller-Lyer phenomena, seven variations of walls were acquired and another seven types of roofs were recommended among the various types which are most prevalent in modern residences. Thus seven types of each four parts are supposed under the hypothsis to develop 2401 variations in total. In the final stage, questionnaires were sent out to find out preference on the part to the public on the 2401 combinations and the external shapes were resystematised into the preferential factors derived by the preference's vabidity. The overall findings of the survey can be concluded as follows. 1. Even with the same square measure of the elevation great differences were found in the perceptional effects depending upon the shapes of the walls and roofs as well as the design of the lines. 2. The preferable type can be obtained by comparison of the selected seven types of planes and roofs first classified by the individual preference order with the variations of the walls and the second floor plans. 3. The preference survey showed that the determinants of it were in the order of the importance the aesthetic value, the atmosphere, the familiality to the neighborhood and the simplicity.