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집합주택단지 Sequence 경관에 관한 연구 -정량적 분석을 중심으로-
최석창,이봉수,조용준 한국주거학회 2001 한국주거학회 논문집 Vol.12 No.4
The purpose of this study is to understand a view in the light of sequence by human\\`s moving by quantitatively dealing with the elements of sequence view of multiple dwelling zone and to explain its characteristics. As a result, this study found that the sequence view of multiple dwelling zone makes difference according to the degree of sequential changes, layout form, width and moving interval in the zone, as well as view elements outside the zone. The changes in view elements are also treated qualitatively in comparing each multiple dwelling zone in order to explain the characteristics of view of multiple dwelling zone using their mean value and change coefficient.
최석창,조용준,이청웅 한국주거학회 2001 한국주거학회 논문집 Vol.12 No.3
Street is an important factor that street quality determines urban quality as the space of the high public nature in city. The research method considering sequence landscape is important because it is considered that the impression of such a street is formed by the wholeness of consecutive landscape and experience in moving street. Therefore, this study are pursued to structure the analysis of psychological evaluation and environmental attribute base on the physical characteristics of sequence landscape to supply the basic materials for seeking the national direction as qualitative improvement of urban street space and the attractive urban street space. Then the results are as follows. It is shown that the psychological evaluation structure of sequence landscape is evaluated by ornamental nature, intimacy, orderliness, openness and movability and that of environmental attributes is evaluated by four factors such as activity, intimacy, spatial attribute and openness.
고층 아파트 외관 슈퍼그래픽의 시지각적 특성 및 평가 성향에 관한 연구
최석창,양소진,유창균,이청웅 한국주거학회 2003 한국주거학회 논문집 Vol.14 No.6
This study examines and analyzes the current status, characteristics and properties of Super-Graphic as a visual element with Super Graphic designed on the wall of apartment housing, typifies them and explains the preference and evaluative structure by each type. The results of this study are as follows: According to color environment of Super-Graphic, N-tone colors are 21.4% and YR-tone colors are 14.5%. In the whole distribution, cold color tone is 41.4% and warm color tone is 37.2%. In the brightness, 72.9% of the entire Super Graphic use high brightness and in the saturation, 51.2% show low saturation, achromatic colors are 21.4% and high saturation is 16.5%. As a result of conducting SD test to analyze the preference of Super-Graphic, 'wonderful' is most negative variable, followed by 'heterogeneous', 'splendid', 'romantic' variety'. Positive variables are 'monotone', 'stable' and 'calm'. As a result of factor analysis to reveal the evaluative structure of Super Graphic image based on the above results, five factors including brightness, saturation, stability, harmony and ordered are extracted and it is considered that these are important variables to be reflected in designing Super Graphic in future.
안찬우,최석창 東亞大學校 1994 東亞論叢 Vol.31 No.1
The three dimensional transfer device for press employs vacuum cups on each finger for panel transfer. Although a high velocity drive is essential for the operation of this three dimensional transfer device, vibration in the finger caused by the dynamic response of the transfer mechanism creastes difficulties for the high velocity drive. To remedy this situation, we studied a simulation method for calculating the mode analysis of the three dimensional transfer device. Main points of the study results are as follows : 1) The natural frequency 10.3Hz is y-direction vibration on the drive part and 15.6 Hz is x-direction vibration. 2) The natural frequency 21.3Hz is y-direction vibration on the driven part. 3) The natural frequency 46.8Hz is bending motion on the feed-bar. 4) The natural frequency 89.5Hz is torsion vibration on the drive part. 5) The natural frequency 120.9Hz is bending motion on the plate. 6) The natural frequency 156.2Hz and 243.3 Hz are torsion vibration on the drive part and plate.
TPR-트리에서 경계 사각형의 사장 공간을 줄이기 위한 효율적인 MBR 근사 기법
최석창(Seok-Chang Choi),송문배(Moon-Bae Song),강상원(Sang-Won Kang),황종선(Chong-Sun Hwang) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.2Ⅱ
이동 객체의 현재와 미래 위치 질의에 최적화된 색인 구조로써 TPR 트리가 있다. TPR 트리는 기존의 공간 색인 구조와 달리 이동 객체와 경계 사각형을 참조 위치와 속도 벡터를 매개 변수로 한 시간에 대한 선형 함수 형태로 모델링함으로써 갱신 비용을 줄이고 현재 및 가까운 미래 위치 정보의 예측을 가능하도록 한다. 하지만 TPR 트리는 시간의 경과에 따라 경계 사각형이 선형적으로 확장됨으로 인해 경계 사각형 내의 객체를 제외한 나머지 공간인 사장 공간과 경계 사각형들 간의 겹침 현상을 증가시켜 질의 성능이 떨어진다는 단점을 가진다. 본 논문에서는 질의 성능을 향상시키기 위하여 경계 사각형 내의 이동 객체들이 이동함에 따라 변경되는 최소 경계 사각형 (MBR : Minimim Bounding Rectangle)을 베지어 곡선 함수를 이용하여 근사함으로써 사장 공간을 줄이는 적응 경계 사각형(ABR : Adaptive Bounding Rectangle) 기법을 제안한다.