• 대한토목학회논문집
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• 제29권1D호
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• pp.91-100
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• 2009

본 연구는 옥외공간 설계변화에 대해 거주민들은 옥외공간에 대해서 어떤 인식을 가지고 있는지 조사하고자 옥외공간을 녹지공간, 놀이 및 운동 관련 공간, 보행공간, 휴식 및 조경시설 공간으로 분류하고 이에 대해 각각의 만족도와 개선사항을 단지규모별로 분석하였다. 분석결과에 따르면 단지내 특색있는 공간이 어딘지에 대한 질문에 단지의 규모가 클수록 녹지공간과 운동 및 놀이공간, 휴식 및 조경시설공간이 비슷한 비율로 응답된 반면, 모든 단지의 응답자들은 단지내 가장 부족한 공간으로 운동 및 놀이공간을 생각하고 있는 것으로 나타났다. 단지규모에 따른 아파트 단지의 옥외공간에 대한 세부공간별 평가결과를 살펴보면 대단지일수록 옥외공간 설계시 좀 더 많은 설계 항목이 도입되고 운동 및 놀이공간 및 휴게공간 등에 대한 강조가 이루어지고 있는 현실과 달리 주민들의 평가는 이와 상반된 결과를 보이고 있는 것으로 나타났다. 이는 단지규모가 클수록 옥외공간에 대한 이용객이 증가하여 이에 대한 수요가 증가하고 다양화되는데 비해 단지설계는 이를 뒷받침하지 못하고 있음을 보여주는 결과라 할 수 있을 것이다.

• 대한수학회지
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• 제55권3호
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• pp.735-747
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• 2018

Let M be a real hypersurface of a complex space form with constant curvature c. In this paper, we study the hypersurface M admitting Miao-Tam critical metric, i.e., the induced metric g on M satisfies the equation: $-({\Delta}_g{\lambda})g+{\nabla}^2_g{\lambda}-{\lambda}Ric=g$, where ${\lambda}$ is a smooth function on M. At first, for the case where M is Hopf, c = 0 and $c{\neq}0$ are considered respectively. For the non-Hopf case, we prove that the ruled real hypersurfaces of non-flat complex space forms do not admit Miao-Tam critical metrics. Finally, it is proved that a compact hypersurface of a complex Euclidean space admitting Miao-Tam critical metric with ${\lambda}$ > 0 or ${\lambda}$ < 0 is a sphere and a compact hypersurface of a non-flat complex space form does not exist such a critical metric.

• 호남수학학술지
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• 제30권3호
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• pp.535-550
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• 2008

Let M be a real hypersurface of a complex space form with almost contact metric structure $({\phi},{\xi},{\eta},g)$. In this paper, we study real hypersurfaces in a complex space form whose structure Jacobi operator $R_{\xi}=R({\cdot},{\xi}){\xi}$ is ${\xi}$-parallel. In particular, we prove that the condition ${\nabla}_{\xi}R_{\xi}=0$ characterize the homogeneous real hypersurfaces of type A in a complex: projective space $P_n{\mathbb{C}}$ or a complex hyperbolic space $H_n{\mathbb{C}}$ when $g({\nabla}_{\xi}{\xi},{\nabla}_{\xi}{\xi})$ is constant and not equal to -c/24 on M, where c is a constant holomorphic sectional curvature of a complex space form.

• 한국문헌정보학회지
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• 제54권1호
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• pp.89-114
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• 2020

본 연구는 공공도서관 내 복합문화공간의 현황 및 운영 중인 프로그램 현황을 파악하기 위한 기초연구로서, 복합문화공간을 구성한 공공도서관을 대상으로 공간유형 및 프로그램 현황을 파악하고, 이를 기반으로 향후 복합문화공간별 프로그램 활성화 방안을 모색하고자 하였다. 이에 복합문화공간을 도서관 내에 구성하고 있는 공공도서관 사서를 대상으로 설문조사를 실시하였으며 그 결과, 교육공간, 전시공간, 공연공간이 다수 있는 것으로 나타났으며, 이와 맥락을 같이하여 복합문화공간에서 운영하고 있는 프로그램 유형도 교육, 전시, 공연 유형의 프로그램이 다수 진행되고 있었다. 그러나 현재 전담인력 부족, 예산 부족, 프로그램 개발 어려움, 프로그램 참여 저조, 문화시설 및 자료 부족 등으로 복합문화공간 운영의 내실화는 아직 부족한 실정인 것으로 보인다. 이에 향후 공공도서관 내 복합문화공간 프로그램 활성화를 위해서는 해당 도서관의 복합문화공간에 대한 목표와 비전을 설정, 공간 확보, 복합문화공간을 위한 인력 및 예산 확보, 홍보 등이 이루어져야 할 것으로 보인다.

• 시스템엔지니어링학술지
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• 제2권1호
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• pp.37-41
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• 2006

The KSLV-I satellite launch vehicle will be launched in a space center currently under construction. The Space Center which is an advance post base of space development of Korea is located on Oenaro island in Kohung, South Cholla Province. A Ground Complex of the Space Center consists of an AC(Assembly Complex), a LC(Launch Complex), and a MCC(Mission Control Center). Assembly and test facilities are located in the AC in which stage assembly, integrated assembly, check-up, certification test, and pre-launch test are made effectively. A launch pad, fuel supply facilities, a launch control center and associated supporting facilities are located in the LC, and the MCC has control over the space center. These ground complex facilities have diverse forms of an interface with mechanical device, electric device, and etc. These should also provide optimum condition and performance during launch operation processes of the launch vehicle. This paper introduces the result of R&D for the AC of the ground complex performed during system design period.

• 대한수학회보
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• 제26권1호
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• pp.75-82
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• 1989

It is recently proved by Aiyama and the authors [2] that a complete space-like complex submanifold of a complex space form $M^{n+p}$$_{p}$ (c') (c'.geq.0) is to totally geodesic. This is a complex version of the Bernstein-type theorem in the Minkowski space due to Calabi [4] and Cheng and Yau [5], which is generalized by Nishikawa[7] in the Lorentz manifold satisfying the strong energy condition. The purpose of this paper is to consider his result in the complex Lorentz manifold and is to prove the following.e following.

• 대한수학회지
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• 제52권3호
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• pp.587-601
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• 2015

In this paper, we investigate the $\mathbb{R}$-complex Hermitian Finsler spaces, emphasizing the differences that separate them from the complex Finsler spaces. The tools used in this study are the Chern-Finsler and Berwald connections. By means of these connections, some classes of the $\mathbb{R}$-complex Hermitian Finsler spaces are defined, (e.g. weakly K$\ddot{a}$hler, K$\ddot{a}$hler, strongly K$\ddot{a}$hler). Here the notions of K$\ddot{a}$hler and strongly K$\ddot{a}$hler do not coincide, unlike the complex Finsler case. Also, some kinds of Berwald notions for such spaces are introduced. A special approach is devoted to obtain the equivalence conditions for an $\mathbb{R}$-complex Hermitian Finsler space to become a weakly Berwald or Berwald. Finally, we obtain the conditions under which an $\mathbb{R}$-complex Hermitian Finsler space with Randers metric is Berwald. We get some clear examples which illustrate the interest for this work.

• 한국실내디자인학회논문집
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• 제21권3호
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• pp.31-39
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• 2012

This is the time we need differentiated strategy due to consumer's standard of purchasing is becoming more complicated and corporate marketing war is intensely competitive. For a long-term strategy, making competitive corporate image is important because companies have their own competitiveness. In addition, importance of having a relationship with customer is magnified through consumers'direct and indirect experience. "The corporate complex cultural space is designed place for experiential marketing to convey its meaning to consumers." Under above concept, this study analyzed the theory of experiential marketing and conducted a survey which is based on experiential marketing strategic module (SEMs) using the analyzed theory. This study drew expression characteristics of space through case analysis and conducted a survey to have more effective corporate complex cultural space. As a result, the experience in the space enables people to understand of the space through five senses, not consist of simply chucks of sense-date, and this result emphasizes the importance of 'Event' because people tend to escape from restriction for reality to relive stress and have emotional satisfaction. In addition, it shows expression characteristics which provide sympathy as a flexible interaction through symbolical image. The result of the expression characteristics' survey is showed up to improve effect of corporate complex cultural space. This study is analyzing the corporate complex cultural space through experience marketing for the company which wants provide differentiated experience of various space expression methods and catching current position. Also, this study places its significance to give a way to increase space preference and effect of corporate complex cultural space. Based on the result of this study, I hope the future corporate complex cultural space will develop refreshingly.

• 한국실내디자인학회논문집
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• 제20권5호
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• pp.51-58
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• 2011

As it gets nearer to the modern society, social and cultural situations are changing and the spatial form of public space is changing into the complex structure where it is interlinked with each other diversely. In particular, as the development of large-scale complex spreads nationwide, the form of complex commercial space assuming the nature of malls appears prominently. In such a large-scale complex commercial space, the diverse visual elements make the environment difficult to be perceived. Like this, the attention in the commercial space where a variety of visual stimuli are in the presence, is important element, so the plan of VP(visual presentation) is needed for effectively selecting or inducing the space. Thus, in this study, human visual and perception process will be reviewed and a method to evaluate the attention will be proposed. Also, the attention of each stores in the complex commercial spaces will be evaluated to propose the indicators for resonable spatial panning in the future.

• 대한수학회보
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• 제48권6호
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• pp.1315-1327
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• 2011

Let M be a real hypersurface of a complex space form with almost contact metric structure (${\phi}$, ${\xi}$, ${\eta}$, g). In this paper, we study real hypersurfaces in a complex space form whose structure Jacobi operator $R_{\xi}=R({\cdot},\;{\xi}){\xi}$ is ${\xi}$-parallel. In particular, we prove that the condition ${\nabla}_{\xi}R_{\xi}=0$ characterizes the homogeneous real hypersurfaces of type A in a complex projective space or a complex hyperbolic space when $R_{\xi}{\phi}S=R_{\xi}S{\phi}$ holds on M, where S denotes the Ricci tensor of type (1,1) on M.