• 감성과학
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• 제4권2호
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• pp.47-55
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• 2001

박수진, 김한경, 한재현, 이정원, 김종일, 송경석 및 정찬섭(2001)에서의 발견을 토대로 얼굴의 감성모형을 개발하였다. 박수진 등의 연구에서는 얼굴의 감성구조를 이루는 2개의 차원축으로 ‘날카롭다-부드럽다’, ‘앳되다-성숙하다’를 제안하였다. 본 연구에서는 이 축들로 이루어진 얼굴의 2차원 감성공간 내에 균일하게 17개의 위치를 선정하고 각 위치들에 합성된 해당 얼굴들을 배치함으로써 감성에 영향을 주는 전체적인 얼굴특징이 무엇인지를 가시화하였다. 또한, 얼굴의 물리적 특징들이 감성의 변화에 어떤 영향을 주는지를 두 개의 주요 축을 중심으로 살펴보았다. 마지막으로 범주모형으로서 개별 감성어휘들과 얼굴의 물리적 특징이 어떤 관계가 있는지에 대해서도 살펴보았다.

• Journal of applied mathematics & informatics
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• 제14권1_2호
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• pp.397-403
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• 2004

Cutler showed some duality results about Hausdorff and packing dimensions of a measure on a compact set in Euclidean space if its s-dimensional Hausdorff measure or packing measure is positive. We show that the similar results in a perturbed Cantor set hold according to its quasi s-dimensional Hausdorff measure or packing measure and we find concrete measures in this case while Cutler showed the existence of such measures. Finally under some strong condition, we give a concrete measure whose Hausdorff and packing dimensions are the same as those of the perturbed Cantor set without the condition that it has positive s-dimensional Hausdorff or packing measures.

• Structural Engineering and Mechanics
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• 제8권6호
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• pp.579-589
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• 1999

A new way to reduce the eigenvalue computation effort in structural dynamics is presented in this paper. The degrees of freedom of a structure may be classified into groups that are termed as sub-degrees of freedom. The eigenvalue analysis is performed with each of sub-degrees of freedom so that the computing time is much shortened. Since the dynamic coupling between sub-degrees of freedom is selected to be small and it may be considered as a perturbation, the perturbation algorithm is used to obtain an accuratae result. The accuracy of perturbation depends on the coupling between sub-degrees of freedom. The weaker the coupling is, the more accurate the result is. The procedure can be used to simplify a problem of three dimensions to that of two dimensions or from two dimensions to one dimension. The application to a truss and a space frame is shown in the paper.

• 디자인학연구
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• 제15권4호
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• pp.409-416
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• 2002

자동차에서 실내공간 비중의 점진적 증대는 오늘에 이르러 자동차 차체 디자인의 조형개념에서 새로운 전환점을 제공하고 있으며, 이것은 차량의 차체 크기나 엔진의 배기량에 관계없이 차체에서 승객을 위한 실내 공간을 형성하는 캐빈(cabin)의 크기가 가장 높은 비중을 가지게 되는 것을 전제로 한다. 이에 따라 차체에서 실내공간을 이루는 캐빈의 비례는 차체의 다른 부분의 비례와 함께 변화되고 있다. 캐빈 이외의 공간은 차량을 구성하는 기구적 요소들을 위한 공간과 화물 수송 목적의 공간이다. 캐빈의 비례가 변화된다는 것은 종합적으로 탑승자의 공간 비중과 기구적 요소의 비례 관계가 변화됨을 의미하는 것이며, 이것은 결과적으로 차체에서의 공간개념의 변화를 초래하게 되었다. 이러한 변화로 인하여 현재의 차량은 과거의 차량에서 단순한 외형적 스타일만이 변화되는 것이 아니라, 공간 확보를 위한 차체의 구조와 형태가 차량의 운전공간과 탑승공간의 확보를 위해 변화되고 있으며, 이것은 향후의 차체 스타일에서 새로운 변화로써 나타나게될 것으로 보인다.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제13권1호
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• pp.61-71
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• 2007

The Outdoor space is an essential element among healing environments for older people. The purpose of this study is to identify outdoor design issues which can improve the health conditions of the elderly living in nursing home. At first, the design principles of outdoor space for the mentally ill have been collected from the literature survey. Secondary, outdoor design requirements for the care program in nursing homes have been explored. Thirdly, good design elements have been collected from 6 nursing homes which have good outdoor space. Finally, Basic design principles of outdoor space of nursing homes in which older people with dementia live have been proposed by analysis and synthesis on the three stages before. As a result of this study, 6 dimensions in architectural planning of outdoor space for nursing homes have been presented : safety environment, various sensual stimulation, social interactions, support physical ability, accessibility, meditation.

• Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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• 제3권2호
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• pp.81-89
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• 1999

This study estimates the correlation dimensions of the land-sea breeze phenomenon, that has a clear diurnal cycle, in order to gain a more detailed understanding of this phenomenon. The data adopted include north-south wind velocity component(v) and temperature(T) time series that were observed at Kimhae Airport and Inje University over a period of 5 days, from the 4th to the 8th of August, 1994. The embedding phase space of the time series were reconstructed from 2 to 14 dimensions, and the correlation dimensions of the attractors were then estimated. The results show that the land-sea breeze phenomenon exhibits a deterministic chaos with non-integer correlation dimension values between 2 and 3. Accordingly, 3 is the minimum number of independent variables required to model the dynamics of the landsea breeze phenomenon in the Kimhae area. Since the saturated embedding dimension, when the correlation dimension remains unchanged, is larger for the wind velocity v-component than for temperature, this indicates that wind velocity is susceptible to topology.

• Journal of Astronomy and Space Sciences
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• 제26권3호
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• pp.345-354
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• 2009

A stepped septum polarizer has been designed and fabricated for the 43 GHz band KVN receiver system. The dual-circular polarizer converts left and right hand circularly polarized signals into linear polarizations in two separated rectangular waveguides. Measurements show that the performance of the designed septum polarizer covering 42-48 GHz frequency band is adequate to meet the requirement of KVN receivers. Especially, a polarizer for the KVN receiver of 85-95 GHz frequency band can be fabricated by scaling the dimensions of the septum polarizer developed in this paper.

• 제어로봇시스템학회논문지
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• 제12권11호
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• pp.1102-1110
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• 2006

This paper addresses the problem of computing grasp stability of the object for two-fingered robots in two dimensions. The concepts of force-closure and dual space are introduced and discussed in novel point of view, and we transform friction cones in a robot work space to line segments in a dual space. We newly define a grasp stability index by calculating intersection condition between line segments in dual space. Moreover, we propose a method to find the optimal grasp points of the given object by comparing the defined grasp stability index. Its validity and effectiveness are investigated and verified by simulations for quadrangle object and elliptic objects.

• 한국주거학회논문집
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• 제19권6호
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• pp.21-32
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• 2008

The purpose of this research is firstly to derive regular sizes of average dwellings in Korea and to examine minimum living standards in light of those regular dwellings in order to meet future housing requirements of low income households. Two plan types of unit floor area 60 $m^2$ and 85 $m^2$ have become prevalent and ubiquitous so as to reflect the basic requirements of ordinary living standards. Thus, dimensional characteristics of each space in those two plan types is thoroughly investigated in this research. The background of regular plans and their popularized process is first reviewed and the 120 cases of apartment units which were constructed between 2000 and 2007, are selected from those three regional groups and surveyed in detail. The area, depth, width and proportion of each space of unit plans are compared and analyzed in various aspects. As a result, proper space sizes and standards for low income households are reviewed and compared. The regional difference of space dimensions is not significant as expected but area and size characteristics of each space is very much regularized and obvious. And it is argued that those dimensional characteristics should convey the social and cultural values of Korean housing. The average dimensions of each spaces of surveyed apartment unit turns out to be much closer to guidable living standards rather than minimum living standards. Thus, it is very probable that the present guidable living standards could be upgraded to become the future minimum living standards soon.

• Journal of Periodontal and Implant Science
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• 제46권3호
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• pp.197-206
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• 2016

Purpose: The aim of this study was to evaluate alterations of papilla dimensions after orthodontic closure of the diastema between maxillary central incisors. Methods: Sixty patients who had a visible diastema between maxillary central incisors that had been closed by orthodontic approximation were selected for this study. Various papilla dimensions were assessed on clinical photographs and study models before the orthodontic treatment and at the follow-up examination after closure of the diastema. Influences of the variables assessed before orthodontic treatment on the alterations of papilla height (PH) and papilla base thickness (PBT) were evaluated by univariate regression analysis. To analyze potential influences of the 3-dimensional papilla dimensions before orthodontic treatment on the alterations of PH and PBT, a multiple regression model was formulated including the 3-dimensional papilla dimensions as predictor variables. Results: On average, PH decreased by 0.80 mm and PBT increased after orthodontic closure of the diastema (P<0.01). Univariate regression analysis revealed that the PH (P=0.002) and PBT (P=0.047) before orthodontic treatment influenced the alteration of PH. With respect to the alteration of PBT, the diastema width (P=0.045) and PBT (P=0.000) were found to be influential factors. PBT before the orthodontic treatment significantly influenced the alteration of PBT in the multiple regression model. Conclusions: PH decreased but PBT increased after orthodontic closure of the diastema. The papilla dimensions before orthodontic treatment influenced the alterations of PH and PBT after closure of the diastema. The PBT increased more when the diastema width before the orthodontic treatment was larger.