• Journal of the Korean Operations Research and Management Science Society
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• v.26 no.2
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• pp.13-46
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• 2001

SDP (Semidefinite Programming), as a sort of “cone-LP”, optimizes a linear function over the intersection of an affine space and a cone that has the origin as its apex. SDP, however, has been developed in the process of searching for better solution methods for NP-hard combinatorial optimization problems. We surveyed the basic theories necessary to understand SDP researches. First, We examined SDP duality, comparing it to LP duality, which is essential for the interior point method, Second, we showed that SDP can be optimized from an interior solution in polynomial time with a desired error limit. finally, we summarized several research papers that showed SDP can improve solution methods for some combinatorial optimization problems, and explained why SDP has become one of the most important research topics in optimization. We tried to integrate SDP theories. relatively diverse and complicated. to survey research papers with our own perspective, and thus to help researcher to pursue their SDP researches in depth.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.49 no.8
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• pp.374-379
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• 2000

The nodal marginal cost and the congestion charge are used as the econimic signals for the electricity price and new invetments in deregulated power systems. In this paper, the nodal marginal cost and the congestion charge are calculated by using the shadow prices resulted from the calculation of Optimal Power Flow(OPF). Linearization of inequality constraints and piecewise linear cost functions make an OPF problem LP-based forms. In order to use the shadow price, the Interior Point(IP) algorithm is applied as a solution technique to the formulation. This paper proposes an algorithm to determine efficients initial points which are guaranteed to be interior points.

• Korean Institute of Interior Design Journal
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• v.25 no.4
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• pp.98-104
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• 2016

The study explores, by carrying out literature review (theoretical pursuit) and case analysis (practical works), the changed point of view on the European war memorial/museum, the revolution of museography and its paradigm, the case analysis of war memorial/museum in the paradigm shift, the new point of view and its role. Through the theoretical thinking and the case analysis, it concludes that the exhibition space of war memorial/museum, which is in the center of material culture, is turning into the venue of societal culture. Ultimately, it aims at indicating the necessity of the paradigm shift, and offering the exhibition design strategy and technique which can better display the objects - remains - of the terrible war and the importance of peace for the old generation and the future generation.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2008.05a
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• pp.46-49
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• 2008

This research does Complexity form, Interior epidermis cell re-organization, Object discovery that have correct numerical value concept by purpose. Research applied by Grid re-organization in form generation, Parameter variation of cell unit (morphor, tweener), Symbol, pattern of variation, self-organization cell substitution order. Representation through 3d digital modeler of polygon, Nurbs and street-sheet program(x,y,z coordinates & Network way of points) etc. of main work. Investigator specified numbers of U profiles*30, V point-20 that is 600 Paramaters individual in volume, and define circle radius of lighting in object, Projection size variously and tried difference. Transposition cell to point and Heightened brightness of color using pointillism of painting. Led lighting cell object is expressed being decoded by digital code.

• Korean Institute of Interior Design Journal
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• no.3
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• pp.46-57
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• 1994

Today, it is a fact that interior design plays a very important role as much as architecture on contributing to our society as a rising new professional field. On the other hand, our interior design education is still in immagture stage unlike the graudal development of the mood of interior design line , If the interior design field has any educational value to invest to be noticed as an environmental design that creates the human environment. There are great deal of meanings to indicate the direction for better education after recognizing the manu different problems on presently offering interior design education. Therefore, the objectives of this study is , after establishing the innovative methods of education and course contents of the four year interior design program, to produce the interior designers of manifold abilities, who is able to fit well in the professional practice, in order to materialize the settlement of interior design education which will be the key point in our circumstances, which has ow social recognition toward interior design. There were four phases in this study. First was to gather and to analyze information from printed materials, such as curriculum and catalog from each institution. Secondly, we had collected existing previous studies in all interior design area in order to sude as references. Thirdly, we have managed to suggest ideal improvement for better basic design program in the area of interior design education after the arranging and analyzing . Finally, we were able to persuade the importance of improved basic design program to the interior design education parties and to suggest the direction for the future. Because interior design as a scholastic pursuit is combined practical application study by the art and technology, it emphasizes specialty . From that reason interior design education must be performed as professional specialist education instead of vocational education. In another words, the ultimate goal of the interior design objectives must be in producing professional specialist.

• Proceedings of the Korean Institute of Interior Design Conference
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• 1999.04a
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• pp.79-82
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• 1999

A study on methodology of Design history of the using crossmedia system, Accordingly the study is aimed at focusing the interior design history that readily appreciates and accommodetes the internet characteristics of various design, from this point of view it make it a purpose of this study to make basic design history through the using crossmedia system.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2004.11a
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• pp.25-30
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• 2004

The recognition of emotionality becomes so important that it is called 'emotional consumption society' Emotional design, which is mostly concern about user's consensus & experiences and in the space, is appeared on commercial place. Emotional design is understanded from a interactive point of view, human and interior-space. The purpose of this study is to examine the emotional design by analysis of multiple-commercial-functioned shopping places. Specially, the most recently remarkale Jerde partnership's shopping space in Japan.

• Korean Institute of Interior Design Journal
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• v.14 no.1
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• pp.91-99
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• 2005

The chief aim of this study is to prepare the rational alternative plan of the environmental friendly intoner design which can improve sick house syndrome of an apartment house and clarify future-development and the method proposal of use activation and point out the present problem depended to investigate development and the use actual condition of domestic environmental friendly interior materials related in-and-outside-the-country example on a foundation about the various precedence researches on environmental friendly interior materials. The study was witten at first the concept of the environmental interior design which leads environmental friendly charactenstics of material, a interior design, and construction, at the first in the conceptual definition of sick house syndrome. and then it was introduced the present condition of domestic environmental interior materials, interior design and construction and an environmental regulation and standard of in-and-outside-the-country In Conclusion, it may try to present comprehensive analysis and an expansive alternative plan.

• Korean Institute of Interior Design Journal
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• no.41
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• pp.155-162
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• 2003

The factors to limit interior circumstance and the expression of the space start In the point how to provide the order in the interior space according to the intention of design. The controlling of the natural and artificial surroundings should be focused by synthesizing and analyzing the condition of circumstance, function, and emotion to provide the comfortable room to a customer in a fitness center. A fitness center aiming at the future requires various function according to it's role depending on the change of the social values. In addition, the fitness center reflecting the various regional culture according to the change of values requires the expansion of the cultural and life space. The characteristics of fitness space like this affects the mental effect of a customer with the color and quality of the materials suitable for the characteristics of grouping, continuity, symbolism, and generation as well as the unification in the total design and the simplicity of maintenance and management. The paper aims to extract factors related to the circumstance plan of the interior and to suggest it's application in the interior design. The design applicable to the circumstance plan of the interior will keep changing according to the social change and the change of the understanding along with the factors. The continuous research on the interior circumstance planning of a fitness center could be approach to develop in a systematic method and the paper will be expected to be a little step toward it.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.51 no.1
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• pp.37-44
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• 2002

This Paper suggests reasonable pricing mathod fur Reactive Power in Optimal Power Flow for the system analysis. Under restructuring, not only real power pricing but also reactive power pricing is important for the system analysis and operation. If people just focus on real power pricing, the Generators may no generate reactive power voluntarily, because the Generators may not recover the cost of the reactive power generation. So making a reasonable reactive power pricing is becoming more important than any other time. In this paper, the authors set a Proper Power factor and price the portion of the reactive power that exceeds the power factor using Interior Point Method. By applying this method, the System operator can use this strategy for the analysis of reactive power generation pricing and the Generator can get the motivation to generate reactive power. The author develops fully optimized fast Primal Dual Interior Point Method with sparsity technique and applies this method to Reliability Test System (RTS24) and KEPCO 674 bus system (684 buses. 1279 lines). It shows adaptability and usefulness.