• Journal of the Korean Mathematical Society
• /
• v.46 no.1
• /
• pp.171-185
• /
• 2009

We study fibred Riemannian spaces with almost complex structures which are induced by the almost complex structure or the almost contact structure on the base and fibre. We show that if the total space is a complex space form, then the total space is locally Euclidean. Moreover, we deal with the fibred Riemannian space with various Kaehlerian structures.

• Proceedings of the Korean Institute of Interior Design Conference
• /
• 2005.05a
• /
• pp.253-254
• /
• 2005

Space Composition should be understood an aesthetic cognition about the basis of space in different points of view. It establishes the prescribed environment of space through the hypothesis of given geometrical object. Therefore, it makes understand the cause of space composition and conceive the consistency of various elements, orders, norms and forms of space composition, Through this study, the students may build up scenarios-form the beginning to the climax of space -, directions and full stories about the space.

• Korean Institute of Interior Design Journal
• /
• v.18 no.5
• /
• pp.40-48
• /
• 2009

This study aimed to analyze the types and characteristics of space forms according to the composition of the stage and auditorium space along with the expression trends in the space of performing arts centers through the cases of modern performing arts centers in America. Today since the purposes of performance are multiple, a variety of stage types are applied to each performing arts center. They use various spaces and performances of multiple purposes by moving and transforming the stage and auditorium according to the kinds of performance as a variation of the arena stage. In today's performing arts centers, the sizes of the stage and auditorium can vary widely, and the performances of many different genres are put to multiple purposes. There appear complex performing arts centers that can plan performing spaces of diverse sizes and forms to fit the functions of a performance in a large building. Since they put on performances in a large space according to the characteristics of the kind of performance, the intentions and goals of the performance are well delivered to the audience.

• Korean Institute of Interior Design Journal
• /
• v.27 no.3
• /
• pp.90-99
• /
• 2018

The purpose of this study is to study how F.L. Wright reflected the climatic properties and materials of the region into creative ways of designing his architecture. The research method examined the design methods and use of materials by Wright in existing research literature and compares the space plans of housing works in Arizona. The research results will be summarized as follows : 1) For two-story houses, pilotis was used to avoid the hot air and the walls on the ground floor were often planned as thick wall. 2) In the fifties, F.L. Wright's design method changed in a circle from the vertical and horizontal lines. 3) F.L.Wright's Architectural form concepts and design concepts were extracted from local symbolic forms and natural forms. 4) F.L.Wright avoided Arizona's direct light but Indirect sunlight enters into the interior space. 5)External space was expressed as a closed space, while internal space was expressed as an open space. It's like an organic space. 6) Most of the housing materials used are stone and cement from rough deserts, and wood with low heat conductivity and thick concrete blocks to prevent the sunlight from rising above.

• Proceedings of the Korean Institute of Interior Design Conference
• /
• 2008.05a
• /
• pp.67-70
• /
• 2008

The one of the most important thing for the successful realization of display functions in modern exhibition activities is based on exhibition space and the information communication between designers and visitors. Therefore, the information transmission has become an important function of modern exhibition activities. How to transmit information effectively is the key factor of successful exhibition design. However, 'people flow' and 'transportation' are taken as the main issues for a lot of the design works in space design of exhibition. But the information transmission is seldom taken into account as an important factor. The ultimate objective of exhibition design is to transmit the exhibits' information effectively to visitors, so the effective transmission of exhibiting information becomes the most important criteria in exhibition design. The successful exhibition can be well designed through information transmission by means of material objects, a lighting, properties, sounds, color, performance, etc The successful effects of the exhibition also depends on a great extent of the display design and a modeling in exhibition space. Modern exhibition design is getting more importance on the research on forms including basic features and exhibition space relations of forms. This research discusses on the design method that is favorable to information transmission In order to deal with the factor of display and modeling in exhibition space.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.19 no.2
• /
• pp.366-379
• /
• 1995

This study was performed to provide fundamental data on middle-aged women's upper torso by classifying the upper torso somatotype and analyzing the characteristics of their somatotype. Factor analysis of principal component model was used to 38 directly measured items, and cluster analysis was applied for classification of upper torso forms. Seven factors were extracted from the factor analysis. The first factor represented the items of circumference, breadth, and depth which were related with body size. On the basis of the cluster analysis using factor scores trom factor analysis as being independent variables, the subjects were classified into three groups. Three dress forms were constructed according to the characteristics for each somatotype of subjects, the three-dimensional characteristics of somatotype were analyzied by the moire pattern and horizontal section map of proposed dress forms. Wearing test by moire topography was used to evaluate wearing outline, the ease of clothes and garment space. Moire pattern and horizontal section map were useful to evaluate wearing conditions, and garment space was changed by the characteristics of the body shape.

• Kyungpook Mathematical Journal
• /
• v.48 no.1
• /
• pp.109-121
• /
• 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).

• Journal of the Korean Mathematical Society
• /
• v.45 no.2
• /
• pp.393-404
• /
• 2008

Biharmonic Legendre curves in a Sasakian space form are studied. A non-existence result in a 7-dimensional 3-Sasakian manifold is obtained. Explicit formulas for some biharmonic Legendre curves in the 7-sphere are given.

• The Pure and Applied Mathematics
• /
• v.16 no.3
• /
• pp.271-276
• /
• 2009

We study the geometry of screen conformal light like hypersurfaces M of a semi- Riemannian manifold M. The main result is a characterization theorem for screen conformal lightlike hypersurfaces of a semi-Riemannian space form.

• Bulletin of the Korean Mathematical Society
• /
• v.55 no.5
• /
• pp.1621-1625
• /
• 2018

In this paper, following a criterion of E. Yang and L. Yin we discuss whether on the Siegel half-space of genus $g{\geq}2$ a holomorphic derivative exists.