• 한국실내디자인학회논문집
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• 제16권5호
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• pp.126-133
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• 2007

This study is intended to set the concept of becoming meaning of digital space through digital technology and to study the influence of digital space on becoming of real space through derived keyword. The results of this study are summarized as follows. First, the digital concept is created in the process that the virtual space is changed into the real space with a priority given to form, space and time. Digital expression concept and image concept the structural becoming, and idea concept and creative concept creates the time becoming. Second, the concept of digital becoming exposes a physical visibility through the digital's virtual image, and non-space spatiality through the space simulation. It also continuously reveals a consecutive time and non-consecutive time through a statable progress, incremental progress, and dynamic progress. Third, as the influence of digital on becoming of real space, the digital visibly not only expresses the new and difficult becoming problem through conceptual virtuality, but also can review the real space's space concept with virtuality in the digital non-area. Digital's durability expresses the new space's existence by physically combining with the existing space through the virtual form creation.

• 대한전자공학회논문지
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• 제13권5호
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• pp.30-34
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• 1976

24개의 기본요소를 가지고 2-7개 요소로서 한 문자를 구성하는 한글 data의 연속입력으로부터 space code없이 단음절을 자동식별하는 한 system을 제안한다. 3천여자의 한글을 30종의 form으로 form화하고, 그들 form에 대한 7개의 form 특징과 문자구간을 검출하여 단음절을 식별한다. 그 결과 연속입력되는 한글 data의 처리에서 음절분리용 space code를 사용했을 때와 비교하여 컴퓨터의 기억용량이 약 25% 절감되고 처리속도가 약 30% 향상된다.

• 대한수학회논문집
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• 제29권1호
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• pp.131-140
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• 2014

In this paper we investigate (n+1)($n{\geq}3$)-dimensional contact CR-submanifolds M of (n-1) contact CR-dimension in a complete simply connected Sasakian space form of constant ${\phi}$-holomorphic sectional curvature $c{\neq}-3$ which satisfy the condition h(FX, Y)+h(X, FY) = 0 for any vector fields X, Y tangent to M, where h and F denote the second fundamental form and a skew-symmetric endomorphism (defined by (2.3)) acting on tangent space of M, respectively.

• 대한수학회보
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• 제26권1호
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• pp.69-74
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• 1989

Recently one of the present authors [2] asserted that a real hypersurface of a complex space form M$^{n}$ (c), c.neq.0, is of cyclic parallel if and only if AJ=JA and he showed also a complete and connected cyclic-parallel real hypersurface of M$^{n}$ (c), is congruent to type $A_{1}$, $A_{2}$ or A according as c>0 or c<0. A real hypersurface of a complex space form M$^{n}$ (c) is said to be covariantly cyclic constant if the cyclic sum of covariant derivative of the second fundamental form is constant. The purpose of the present paper is to extend theorem 3 and 4 in [2] when the hypersurfaces are of coveriantly cyclic constant, that is a real hypersurface of a complex space form M$^{n}$ (c), c.neq.0, is of covariantly cyclic constant if an only if AJ=JA, and a complete and connected covariantly cyclic constant real hypersurface of M$^{n}$ (c) is congruent to type $A_{1}$, $A_{2}$ or a according as c>0 or c<0.

• 대한건축학회논문집:계획계
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• 제35권8호
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• pp.89-100
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• 2019

The purpose of this study is to critically review the repair works of Seokguram architecture and to search for its original form and space. Seokguram's architectural form has been transformed throughout three repair works. The first transformation occurred during the repair work of the Colonial Government in 1913-1915, and the second occurred during the repair work of the Colonial Government in 1920-1923. The repair work done by the Korean Government in 1961-1964 also caused a severe change in the architectural form and space of Seokguram architecture. The more the repair work was added to Seokguram, the more its original form flew away like a mirage. Through the three repair works, the spatial composition of Seokguram changed in the following directions: from ((front chamber + passageway) + main chamber) to (front chamber + (passageway + main chamber)) through the second repair work, from (front chamber + (passageway + main chamber)) to (front chamber + passageway + main chamber) through the last repair work. Although the compositional space hierarchy of Seokguram was maintained during the first repair work, the architectural form based on the dry method was changed to the form based on the wet method. The Korean government's repair work was a tragedy for the 'Seokguram conservation project' that the people who led the conservation process misunderstood the architectural nature of Seokguram.

• 한국실내디자인학회논문집
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• 제16호
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• pp.190-201
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• 1998

The purpose of this study is to consider the correlational factors of space sections based on the fact the exhibition space plays an important role as a medium of displaying art works. And an another purpose is to investigate the characteristics of various types of exhibition unite space from which In intend to suggest basic sources of exhibition design. I classified domestic and foreign museum which are chosen as objects of study according to form and shape of a section plan. Then comparing exhibition space's form and scale exhibited genre lighting system layout composition display and its correlation with an already established thesis on museum architecture I will infer the characteristics of each type of a space. From these studies proper display conditions requested at the museum are different from the genre and property of the exhibited objects. And lighting system display angel of view and appreciation type affect the exhibition area. The shape of space classifies types of section which cause space's characteristics.

• 대한수학회논문집
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• 제38권1호
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• pp.223-234
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• 2023

The main purpose of this paper is to study the lightlike hypersurface (M, $\overline{g}$) of cosymplectic space form $\overline{M}$(c). In this paper, we computed the Gauss and Codazzi formulae of (M, $\overline{g}$) of cosymplectic manifold ($\overline{M}$, g). We showed that we can't obtain screen semi-invariant lightlike hypersurface (SCI-LH) of $\overline{M}$(c) with parallel second fundamental form h, parallel screen distribution and c ≠ 0. We showed that if second fundamental form h and local second fundamental form B are parallel, then (M, $\overline{g}$) is totally geodesic. Finally we showed that if (M, $\overline{g}$) is umbilical, then cosymplectic manifold ($\overline{M}$, g) is flat.

• 호남수학학술지
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• 제20권1호
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• pp.161-165
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• 1998

• Kyungpook Mathematical Journal
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• 제48권1호
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• pp.109-121
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• 2008

We determine maximal space-like hypersurfaces which are the images of subbundles of the normal bundle of m-dimensional totally geodesic space-like submanifolds of an (m + 2)-dimensional Lorentzian space form $\tilde{M}_1^{m+2}$(c) under the normal exponential map. Then we construct examples of maximal space-like hypersurfaces of $\tilde{M}_1^{m+2}$(c).

• 한국실내디자인학회논문집
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• 제14권2호
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• pp.104-111
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• 2005

Environment problem has proposed in the world at large, the desire for environment conservation and one's value change which lay emphasis on lasting human sensibility are increasing. Constant human mind and ecology centered in space is presenting as future space design substitute plan which is based on fundamental material quality in the space such as environment and human ,naturalist or Green Design, pro-environment construction, sense design and etc. So, we intend to anthropocentric value and get out of satisfaction of function as the past physical environment equipment which is applied the elements of ecology based on the organized body and interaction with human. A form of sensitive space is divided into sentient space, expressing method and material, change of space according to the flow of time, and is expressed in a more segmented form of sensuality by being replaced into a new sensitive space through transaction with human, who occupy within the space. The space embodiment which is satisfied human sense regards as alternative plan intention for the future, through two subjects relativity between the elements of ecology and sense, we will find the influence of sense as each space trait of the elements of ecology, examine sense form in the space with the synthetic summary. It is significant presentation for the lasting space based on anthropocentric delightfulness as the design which moves human mind while designing the space for this pattern of sense space.