• 제목/요약/키워드: regular arrangement

검색결과 131건 처리시간 0.027초

Study on the insulation of HTS bushing at cryogenic temperature

  • Kim, W.J.;Shin, H.S.;Park, T.S.;Kim, S.H.
    • 한국초전도ㆍ저온공학회논문지
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    • 제15권3호
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    • pp.20-23
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    • 2013
  • In the development of high temperature superconducting (HTS) power machines, HTS bushing is one of core technologies. In particular, the insulation body with sheds and electrical insulation at cryogenic temperature have attracted a great deal of interest from the view point of the size, weight and efficiency of bushing. In this study, the electrical and mechanical characteristics of various insulators for body in liquid nitrogen ($LN_2$) were investigated. And the surface discharge distance, collar length of GFRP sheds were studied. To emit bubbles between sheds, the shape and arrangement of shed were studied. The shed structure for 60 kV class HTS bushing were designed with regular arrangement.

정보적 접근방법에 의한 실내공간에서의 시각적 선호도: 예측변수들의 물리적 속성과 선호도와의 관계 (Visual Preference Predictors of interiors in the Informational Approach: its physical attributes and the relationships between these attributes and preference)

  • 노정실;김유일
    • 한국조경학회지
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    • 제27권1호
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    • pp.11-18
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    • 1999
  • The objective of this study are to figure out the physical attributes of the three predictors in the Informational Approach: complexity, coherence, mystery and to investigate the relationships between these attributes and the preference exploratively. Visual inspection of the scenes relative to their rated levels of the predictors revealed the existence of relationship between these variables and the physical attributes. The following are the summary of the relationship between three predictors and the physical attributes: (1) The level of complexity was associated with the pattern of physical attributes which were the amount of facility, line, shape, color plant and arrangement of the visual elements. (2) The level of coherence was related with the regular arrangement of the visual elements. For example, there was certain pattern founded the color, shape, texture was applied to the various space repetitively and symmetrically. (3) The level of mystery had the relationship with the physical attributes of screen, spatial definition, distance of view, physical accessibility, radiant forest, the depth of space.

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건축 공간인지 특성과 경로탐색(Wayfinding)을 고려한 맹학교 건축계획에 관한 연구 - 한빛맹학교와 서울맹학교를 중심으로 - (A Study on the Planning Guide of Educational Facilities for the Blind by the Cognition Characteristics and Wayfinding Behavior of the Blind - Focused on the Han-Vit and Seoul Educational Facilities for the Blind -)

  • 정무웅;구양회
    • 교육시설
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    • 제11권1호
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    • pp.25-37
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    • 2004
  • This study is derived from a problem for the blind, how to recognize the space and how to find their way. Unlike ordinary people, the disabled people are closely related with special constructor environment using the other sense. Especially, to find his/her location, each person depends on the wayfinding ability as acquiring specific and various information,(e.g. recognizing figure by tactile sense, space size by auditory sense, direction by light from a window and regular noise, and existence of switch in a specific place.) Those senses help the person's wayfinding to his/her destination. The procedure of wayfinding are location, position, orientation, navigation, and movement. Consequently, construction for the people above mentioned can offer a design-guideline considering following factors, building arrangement considering regular noise, refurbishment, plan configuration of floor and wall-skin changed, circulation stream that maintains right angle by the regular noise in the building, enforcement location character by the inflow of the light into a crossing.

화음탐색 알고리즘을 이용한 네트워크 돔의 정삼각형 격자 조절기법 (An Arrangement Technique for Fine Regular Triangle Grid of Network Dome by Using Harmony Search Algorithm)

  • 손수덕;조혜원;이승재
    • 한국공간구조학회논문집
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    • 제15권2호
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    • pp.87-94
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    • 2015
  • This paper aimed at modeling a fine triangular grid for network dome by using Harmony Search (HS) algorithm. For this purpose, an optimization process to find a fine regular triangular mesh on the curved surface was proposed and the analysis program was developed. An objective function was consist of areas and edge's length of each triangular and its standard deviations, and design variables were subject to the upper and lower boundary which was calculated on the nodal connectivity. Triangular network dome model, which was initially consist of randomly irregular triangular mesh, was selected for the target example and the numerical result was analyzed in accordance with the HS parameters. From the analysis results of adopted model, the fitness function has been converged and the optimized triangular grid could be obtained from the initially distorted network dome example.

An Efficient Computing Method of the Orthogonal Projection Matrix for the Balanced Factorial Design

  • Kim, Byung-Chun;Park, Jong-Tae
    • Journal of the Korean Statistical Society
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    • 제22권2호
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    • pp.249-258
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    • 1993
  • It is well known that design matrix X for any factorial design can be represented by a product $X = TX_o$ where T is replication matrix and $X_o$ is the corresponding balanced design matrix. Since $X_o$ consists of regular arrangement of 0's and 1's, we can easily find the spectral decomposition of $X_o',X_o$. Also using this we propose an efficient algorithm for computing the orthogonal projection matrix for a balanced factorial design.

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A Study on Sampling for Estimating Tobacco Disease Incidences

  • Park, Hong-Nai
    • Journal of the Korean Statistical Society
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    • 제8권2호
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    • pp.165-168
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    • 1979
  • For crops that are planted in a lattice layout, sampling designs can be made to take advantage of this regular arrangement. In order to select which tobacco plants to be examined in a survey to estimate disease loss in tobacco a method of, so called, bent plots was devised based on the regularity of plantings in the tobacco fields. We will first describe this sample selection and measurement method and then provide estimators and their bias and variance properties.

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Dynamics of Super-cooled state in Cholestric and Smectic Blue Phases

  • Yamamoto, Jun
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.1381-1382
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    • 2008
  • Cholesteric Blue phase (ChBP) is constructed by the regular arrangement of the double helix, whereas the Smectic Blue phase (SmBP) has the inter-connected multi-lamellar structure. Orientation fluctuations of polymer stabilized ChBP and spontaneously super-cooled SmBP are discussed. Spatial topology of the defects play key role on the dynamic properties.

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백제 사찰 조영계획 고찰 (A Study on the Master Plan of the Temple Site of Baekje Period)

  • 탁경백
    • 건축역사연구
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    • 제20권4호
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    • pp.7-28
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    • 2011
  • This study intends to investigate the measuring scales, locations and scales through arrangement plans for a research on construction plans. Through an analysis of the artifacts-measuring scales, the relation of two scales found, which further helped suppose the measuring scales applied during the foundation period. Southern dynasties-scale was still used even after the capital was transferred to Sabi till Tang-scale was introduced. Tang-scale was used for Buddhist temples mostly founded in the 7th century. On the other hand, Goguryo-scale seemed to be used almost at the same period as Southern dynasties-scale used, but it seemed that Goguryo-scale disappeared earlier than Southern dynasties-scale. The locations of Buddhist temples could be classified into mountains, flatlands and mountain valley. Buddhist temples founded in mountains were mostly small-sized, but ones located on flatlands could secure flat fields through mounding operations. In addition, through location conditions of Neungsa and Wangheungsa, it was possible to find out the district setting of Sabi Capital Castle. Finally, the expansion range of Buddhist temples were found to be towards the east and the west. As for the scales of temples according to such conditions of location, it was found a similarity in Temple sites. In general, it was possible to assume that the scales of Buddhist temples tended to be expanded along with spatial expansion and there were regular systems in Buddhist temples related to the Royal family. Through the analysis of arrangement plans between individual buildings, it was found that the basic arrangement of Gate-Pagoda-Main Hall-Lecture Hall was preserved, but the proportion of distances between individual buildings varied depending on cases. As a result, there were differences between scales of entire building sites, construction subjective influences and master plan for each location of a Buddhist temple.

우리나라 노인인구의 ADL 결정요인에 관한 연구 (An Analysis on Factors Affecting Korean Elderly People's ADL)

  • 이미애
    • 한국지역사회생활과학회지
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    • 제21권2호
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    • pp.201-210
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    • 2010
  • Over the past few decades, the proportion of elderly people in Korea has been rapidly increasing. In particular, rural areas are experiencing aging of communities more rapidly compared to urban areas. However, public policy for the elderly does not respond to the needs of rural elderly. To distribute health care resources equitably, it is necessary to gather reliable information on the health status of the elderly. The purpose of this study is to explore factors affecting Korean elderly people's ADL functional status. The data sources are from 2004 Elderly Living Condition Survey. The Analysis sample consists of 3,278 cases. Analysis results show that there is a significant residential variability in education, monthly stipend, living arrangement, subjective health status, regular food in-take, and regular exercise. Logistic regression analysis results also show that 'cognitive ability'(exp(B)=6.603), 'subjective health status'(exp(B)=4.576), 'age'(exp(B)=2.610), and 'living arrangement'(exp(B)=.589) are factors affecting ADLs. Namely, when a respondent's cognitive ability is limited, subjective health status is poor, or if their age is over 75, the probability of having a limited ADL has been 6.6 times, 4.6 times, and 2.6 times higher than otherwise. Among these variables, cognitive ability was the best explanation. In contrast, respondents who live with a spouse or adult children have a lower probability of having limited ADL compared with those who live alone. Considering that the most critical criteria in determining eligibility for social welfare services is ADLs, the development of appropriate ADL assessment tools is in an urgent need. Without the accurate assessment on ADLs, particularly on rural as well as the urban elderly, it seems to be hard to achieve effectiveness in the health care policy for the elderly.

프랑킨센스 오일의 피부노화 억제 효과 (II) - 조직학적 관찰을 중심으로 - (Inhibition Effects of Frankincense Oil on Skin Aging (II): Focussed on Histological Observation)

  • 최외숙;권미화;공민규;이순희;강성례;김필순;김영철
    • Environmental Analysis Health and Toxicology
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    • 제23권2호
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    • pp.129-138
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    • 2008
  • The purpose of this study was to investigate the effects of frankincense oil in skin aging animal model. Skin aging was induced by both the irradiation of UVB and the application of squalene monohydroperoxide (Sq-OOH) to the back of experimental animals for 4 weeks. And at the same time experimental materials were applied topically. Six to seven weeks female SHR-1 hairless mice were divided into five groups including normal (N: saline), control (C: UVB+Sq-OOH+saline), vehicle control (VC: UVB+Sq-OOH+jojoba oil), positive control (PC: UVB+Sq-OOH+0.01% retinoic acid) and experimental (E: UVB+Sq-OOH+3% Frankincense oil) groups, five animals each group. Lipid lamella and lipid content in stratum corneum of the E group were almost intact with a regular arrangement which were similar to the N group. Collagen fibers in dermis of the E group were almost intact with a regular arrangement which were similar to the N group. Relatively much less number of mast cells and inflammatory cells were found in the E group compared to the C group. The activities of XO, SOD and CAT were no significant difference between the E and N groups. In conclusion, the application of frankincense oil to the skin aging animal model reduced both the generation of free radicals and the damage of skin tissues. Therefore, frankincense oil can be used practically for the prevention or improvement of skin aging in terms of health promotion and beauty for the people.