• 한국환경복원기술학회지
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• 제14권2호
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• pp.83-96
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• 2011

The open space of apartment complex has changed diversely according to construction periods which were divided into the introduction stage (the 1980s), the development stage (the 1990s), and the maturity stage (after 1999). This study set out to analyze the periodic changes of visual characteristics and preference with the open space of apartment complexes in Cheongju City. For analysis of visual characteristics and preference, nineteen adjectives that were determined to sufficiently express the feeling of the open space of apartment complex. The results are as follows. As for adjective image assessment by using descriptive statistics, favorable images were shown in complexes of maturity stage phase that were constructed after the liberalization of apartment sale in 1999. These results may be caused both by quantitative increase and diversification of materials in planting and landscaping furniture and by nature-friendly designing. The results of factor analysis by Varimax rotation method showed that common variance was 73.9%, which indicates higher explanation. The nineteen adjectives could be divided into three factors, 'pleasantness factor,' 'negative factor,' and 'irregular factor.' Visual preference was analysed by using Least significant Difference (LSD) by analysis of variance : complexes of maturity stage phase that were constructed according to the liberalization of apartment sale in 1999 were highest in assessment. The correlation between view preference and adjective images was analyzed by multiple regression analysis, and 'feeling like walking,' 'well-arranged,' 'beautiful,' 'friendly,' and 'clean' (in order) were adjective images that most affected the preference. As for the analysis of the correlation between visual preference and physical components of view, the preference increased as the rate of pavement and greens was higher, while it decreased as size of building was larger. Therefore, backgrounds of walking and greens had strong effects on the preference.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.1993-1998
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• 2004

This paper proposes a new framework for control system design, called the data-based control approach or data space approach, in which the input and output data of a dynamical system is directly and solely used to analyze or design a control system without the employment of any mathematical models like transfer functions, state space equations, and kernel representations. Since, in this approach, most of the analysis and design processes are carried out in the domain of the data space, we introduce some notions of geometrical objects, e.g., the openloop and closed-loop data spaces, which serve as the system representations in the data space. In addition, we establish a relationship between the open-loop and closed-loop data spaces that the closed-loop data space is contained in the open-loop data space as one of its subspaces. By using this relationship, we can derive the data-based stabilization condition for a linear time-invariant discrete-time system, which leads to a linear matrix inequality with a rank constraint.

• 한국실내디자인학회논문집
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• 제22권4호
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• pp.78-85
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• 2013

This study employed the Semantic Differential(SD) technique for an empirical analysis of the borrowed landscape-the so-called interaction of landscape between space and nature-in traditional Korean space against the cultural backdrop of confucian ideology. Its findings are as follows: First, the study conducted a comparative analysis of the borrowed landscape between Sarangchae(Men's quarters) and Anchae(Women's quarters) and between Soteuldaemun(A lofty gate) and Sadangdaemun(A gate to an ancestral shrine), using the SD technique. Consequently, their marked distinction in the borrowed landscape were found to illustrate the influence of confucian ideology over spatial composition. Second, both the garden and the sky of Sarangchae appeared more open and dynamic, and soft, and comfortable, and warm compared to Anchae. Also, Soteuldaemun looked more open and dynamic than Sadangdaemun. In conclusion, traditional Korean space applies a monistic view of the world to nature and human beings, thereby embodying a philosophical and aesthetic space where humans enjoy their life in harmony with nature while playing with the landscape in a traditional space.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• 제1호
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• pp.150-158
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• 2001

Maintenance open spaces and community development in large scale housing development is one of the most important issues. We(UDC) established a resident participation activity for maintenance and use open space with community development in Hachioji New Town from 1997. The purpose of this study is to establish resident participation activities for maintenance and use open space with community development in Hajichioji New Town, and to clarify the characteristics and to on sider about efficiency of the activity. We established Minamino Shizen-Juku as a methodology for maintenance and use open spaces at the same time Hachioji New Town was opened in 1997. The activity has continued by now in 2001. We conducted questionnaire survey to make sure efficiency and characteristics of the activity past three years. Minamino Shizen-Juku (nature friendly lessons) is a resident participation activity in Hachioji New Town. It was established in 1997 as soon as the new town was opened, this year is fifth since it was started. It has three objects. 1)Maintenance and use woody environment, 2) Community development, 3) Continuation and renewal native culture. And it has general course, three special courses and one extra course were established in the activity. 1) General course is an activity participated all of member. It's included farming experience in the native field and seasonal events. 2) Rice growing and woods maintenance course is rice growing and wild wood maintenance in the park as a series of annual farming activities. 3) Benefaction from farm course is started from planting spring vegetable at Mizukoshi(Leader of Minamino Shezen-Juku)'s field. There is the number of participant limit because of the area of the field. 4) Watching nature course is watching seasonal wild flowers, trees, animals and plants to know about native nature. 5) Extra program is programmed to know about native history and tradition. It's planned including participant's ideas. Not member can participate in this course too.

• 대한수학회논문집
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• 제25권4호
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• pp.623-628
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• 2010

Nakaoka and Oda ([1] and [2]) introduced the notion of maximal open sets and minimal closed sets in topological spaces. In this paper, we introduce new classes of sets called maximal $\theta$-open sets, minimal $\theta$-closed sets, $\theta$-semi maximal open and $\theta$-semi minimal closed and investigate some of their fundamental properties.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제9권2호
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• pp.83-93
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• 2009

Recently, El-Naschie has shown that the notion of fuzzy topology may be relevant to quantum paretical physics in connection with string theory and E-infinity space time theory. In this paper, we study the concepts of r-fuzzy semi-I-open, r-fuzzy pre-I-open, r-fuzzy $\alpha$-I-open and r-fuzzy $\beta$-I-open sets, which is properly placed between r-fuzzy openness and r-fuzzy $\alpha$-I-openness (r-fuzzy pre-I-openness) sets regardless the fuzzy ideal topological space in Sostak sense. Moreover, we give a decomposition of fuzzy continuity, fuzzy ideal continuity and fuzzy ideal $\alpha$-continuity, and obtain several characterization and some properties of these functions. Also, we investigate their relationship with other types of function.

• 한국항해항만학회지
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• 제34권1호
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• pp.65-70
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• 2010

워터프런트의 온화한 기후특성과 함께 자연이나 개방성 그리고 그러한 것들을 포함하는 축제성이 시민 생활환경의 질 향상이라는 요구에 대응하기에 적합한 공간이라는 특징 때문에 부산에서는 해안지역 워터프런트의 개발이 수익의 극대화를 위해 초고층 건축물 위주로 개발이 진행되고 있다. 그러나 이러한 초고층 위주의 개발은 토지피복의 변화와 더불어 풍속을 약화시키기 때문에 개발에 의해 기후특성이 변화될 가능성이 크다고 할 수 있다. 본 연구에서는 초고층 개발에 따른 워터프런트의 기후변화를 파악하기 위해 최근 초고층 건축물 위주의 개발이 집중되고 있는 부산의 해운대 지역을 대상으로 개발 전후의 기후특성을 비교 검토하여 개발 이후 해운대의 겨울에 따뜻하고 여름에 시원한 해안지역 기후특성이 변화하여 여름의 기온상승이 현저하며 열대야일수가 증가하였음을 밝혔다.

• 대한수학회보
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• 제51권4호
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• pp.1005-1013
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• 2014

Let ${\phi}$ be an analytic self map of the open unit disc D. In this paper, we study the composition operator $C_{\phi}$ from the Bergman space on D to the Hardy space on D.

• 대한수학회논문집
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• 제20권1호
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• pp.63-70
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• 2005

In this paper we study bounded and compact weighted composition operator, induced by a fixed analytic function and an analytic self-map of the open unit disk, from Bergman space into weighted Bloch space. As a corollary, obtain the characterization of composition operator from Bergman space into weighted Bloch space.

• 한국조경학회지
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• 제39권5호
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• pp.21-32
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• 2011

지구단위계획에서는 형식적으로 조성되는 경직된 제도의 모습을 벗어나기 위하여 구역 내 총체적인 계획의 일부분으로 건물 세부 기준뿐만 아니라, 공개공지의 배치, 형태 및 포상에 대한 가이드라인을 제시하고 있다. 문제점을 가지고 있는 도시환경정비기본계획(2005년 수립)이 그동안 도심부의 여건 변화를 반영하기 위하여 재정비되면서 구역별 개발유도 지침에 공개공지 부문이 세분화 되었다. 이러한 제도가 공개공지계획에 있어 실효성 있는 제도인지 개정 전 후를 비교해 본 결과, 도시 및 주거 환경정비법 상 공개공지 관련 수립지침의 부재로 공개공지계획 시 공통적으로 지켜야 하는 건축법과 별반 다를 것이 없는 항목이 신설되어 개정되기 전과 괄목할만한 변경사항이 없다는 분석 내용이다. 지구단위계획과 비교 분석해 본 결과, 지구단위계획 상 공개공지계획은 상위법인 건축법, 서울시 건축조례와 동일한 조성 기준이 한가지만 존재하고, 대부분은 제1종지구단위계획수립지침을 통해 신설된 조성 기준들이다. 반면, 도시환경정비기본계획상 공개공지계획의 속성은 절반이 상위법인 건축법과 서울시 건축조례와 동일하거나 유사한 항목이다. 건축법과 같은 공통적으로 지켜야 하는 상위법에서는 설치기준 등과 같은 필수적인 요소들의 나열이라면, 하위법에서는 주변 환경과 공개공지의 적극적인 연계로 공개공지의 의의에 맞게 구체적이고, 실효성 있는 미시적인 측면의 조성 기준이 만들어져야 할 것이다.