• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.8 no.1
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• pp.60-66
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• 1999

This study is to develop design sensitivity analysis method based on continuum theory for the actual buckling load of vehicle passenger compartment with respect to sizing design variables. For nonlinear structural analysis, both geometric and material nonlinear effects are considered. The total Lagrangian formulation for incremental equilibrium analysis and one-point linear eigenvalue problem for buckling analysis are utilized. Numerical methods are presented to evaluate design sensitivity expressions, using structural analysis results from FEM code. Optical design of vehicle passenger compartment with buckling constraint solved using Gradient projection method.

• Korean Institute of Interior Design Journal
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• no.4
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• pp.22-26
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• 1995

The objects of this thesis are to examine the ways of applying the postmodern theory into the contemporary de-signing based on the korean culture and history. As the results of this study Ⅰfound the expressions of the postmodern design has much value to communicate because of the importance of the aesthetics. One of the most important postmodern design concepts, the historical allusion is also accepted as an aspects of new "ism" after modernism. In applying the historical motives the problem is that we must understand the meaning of ways of life and culture included the external ornaments. Finally if we consider not only the hardware aspacts but also the software aspects - society, history, region and culture - we can make our postmodern design lan-guages.

• Korean Journal of Computational Design and Engineering
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• v.4 no.4
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• pp.360-370
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• 1999

The paper proposed a basic architecture of an agent system to support exchange and sharing of design informations by means of ACL(Agent Communication Language) which can represent design informations and knowledges. Based on the architecture of the agent system a ship initial design agent system was implemented in order to show the effectiveness of the agent-based system. The basic architecture of the agent consists of an ACL handlerand CORBA(Common Object Request Broker Architecture) objects for the exchange of ACL messages in the heterogeneous and distributed environment. The ACL handler can process expressions of knowledge and manage communication messages among the agents. The paper mainly focuses on the implementation of the ACL handler. The ACL handler consist of a KQML(Knowledge Query and Manipulation Language) handler that manages KQML messages, a conversation module, and a content handler that handles message contents. The conversation modulo implements conversation policies and checks all messages if they are allowable and meaningful messages based on the conversation policies. The implemented agent-based system was applied to the ship initial design to show the handling procedure of the agent system.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.23 no.6
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• pp.683-691
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• 2010

In this paper, using an adjoint variable method, we develop a design sensitivity analysis(DSA) method applicable to heat conduction problems in steady state. Also, a topology design optimization method is developed using the developed DSA method. Design sensitivity expressions with respect to the thermal conductivity are derived. Since the already factorized system matrix is utilized to obtain the adjoint solution, the cost for the sensitivity computation is trivial. For the topology design optimization, the design variables are parameterized into normalized bulk material densities. The objective function and constraint are the thermal compliance of structures and allowable material volume respectively. Through several numerical examples, the developed DSA method is verified to yield very accurate sensitivity results compared with finite difference ones, requiring less than 0.25% of CPU time for the finite differencing. Also, the topology optimization yields physical meaningful results.

• Journal of the Korean School Mathematics Society
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• v.16 no.3
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• pp.539-560
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• 2013

The purpose of this study was to investigate characteristics of mathematically gifted high school students' thinking in design activities using GrafEq. Eight mathematically gifted high school students, who already learned graphs of functions and inequalities necessary for design activities, were selected to work in pairs in our experiment. Results indicate that logical thinking and mathematical abstraction, intuitive and structural insights, flexible thinking, divergent thinking and originality, generalization and inductive reasoning emerged in the design activities. Nonetheless, fine-grained analysis of their mathematical activities also implies that teachers for gifted students need to emphasize both geometric and algebraic aspects of mathematical subjects, especially, algebraic expressions, and the tasks for the students are to be rich enough to provide a variety of ways to simplify the expressions.

• The Research Journal of the Costume Culture
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• v.24 no.5
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• pp.670-686
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• 2016

The purpose of this study is to delineate and analyze the expression of the kidult and its characteristics and thereby provide data to be used for fashion design in various manners as well as to suggest creative and varied possibilities of fashion design. As a way to study, the author of this paper organized the general terms, concepts and definitions concerning the kidult in the previous papers and journals. The data was collected from the collections represent the characteristics of kidult especially from 2006 to 2015. The results are as follows: Firstly, The characters stimulating the innocence of children were used the most for infantile expression. Parody used characters in the movie or famous logos. Deformation was used to create designs by way of distortion and deformation. Exaggeration thereby showing visually strong impression and inducing surprise and unexpectedness. Depaysement was useful to let us describe concepts and enhance our infinite creativity and interests about objects using surrealistic. Secondly, Infantile characteristics used the images of toys with infantile imagination and sense of humor. Fantasy introduced objects or expressed a dream-like feeling. Unexpectedness used two-faced ideas or conflicting ideas to express conflicts, collision and an interchange with heterogeneous things, avoiding the limit of size and the simplicity of materials. Parody used jocular expressions, satire and ironic expressions to express the original image in a fun manner. Exaggeration transformed changed the structure to restructure objects in a subjective and creative manner, thereby expressing creative patterns using various subject matters by way of special modeling or distortion and transformation.

• Journal of the Korea Convergence Society
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• v.7 no.6
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• pp.199-203
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• 2016

This study relates to the development of a program for calculating the roofed pechan prism design data. First, we set the roofed pechan prism design variables and derive the relational expressions between them. With this expressions, we could develope the program that outputs the numerical data for roofed pechan prism design when the face-length and the effective incident beam diameter are given. In fact, applying this program to the prism which is not the commercial size, we were able to calculate the design data very quickly, so that we can easily acquire the 3D structure of the actual roofed pechan prism. This means that we can quickly ensure the structural data of roofed pechan prism which is required for the product development and we are able to develop the new products related to the scope at a faster speed.

• The Research Journal of the Costume Culture
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• v.24 no.2
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• pp.180-197
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• 2016

The purpose of this study is to create knit ruffles that represent the aesthetic and artistic values of painted works of art that rhythmically express flower petals and add an artistic impression on the knit ruffle designs. This study is based on the artistic life of Georgia O'Keeffe and changes in her artistic background, and the world of paintings. The relevant data was gathered from domestic and foreign references, academic journals, and the internet. The characteristics of Georgia O'Keeffe paintings were examined. Her paintings typically include a series of various motifs, symmetry, balance, and harmony of detailed realistic expressions and abstract elements, repetition, and the principles of contrast and emphasis in shaping. The decoration techniques used on fabrics were applied using the knitting machine which controls the tension to develop a variety of textures, apart from the previous standardized knit textures, through various knitting techniques. A gradation effect was then applied by piece-dyeing the knitted materials in various colors to express asimilarity to the original colors in O'Keeffe's works with delicate color expressions. After the piece-dyeing, the decorative knitted materials were trimmed on a model to re-create the natural curves of flower petals. This study aims to converge works of art with fashion designs to develop various creative knitted fashion and to impart an artistic sense in the fashion design industry.

• Journal of the Korea Fashion and Costume Design Association
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• v.8 no.1
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• pp.155-168
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• 2006

The purpose of this study focusing on the gather decorations shown in the modern fashion was to review needlework techniques and design features of gather decorations and thereupon, analyze the aesthetic characteristics of gather decorations shown in designers' works to examine the gather decoration trend in today's fashion. First, the decorative features of gather decorations different from the conventional costumes are shirring, lace and trimming combined or shirring repeated. Second, in view of sensualism, the gather decorations seem to play a role of enhancing the exposure as a mode of expression, while the indirect exposure or beach is mixed with the materials to widen the range of gather decoration expressions. Third, in terms of history, the conventional decorative techniques are combined with new techniques and materials to create a fantastic and romantic mood different from the conventional costumes. Fourth, in view of rhythms, the wave line of the rim for gather decorations serves to express some vivid effects; on the human body, its monotonous plane repetition will turn into a new expression or a voluminous physical sense of motion. However, since expressions or meanings of the gather decorations are much diversified, they should not be regarded as simple decoration details. Our modern designers searching for new expression of creases use unique structural forms to explore the possibility of creative gather decorations. In all, since gather decorations seem to be significant as unique details conducive to a structural pragmatism and aesthetics, it is deemed necessary to continue to develop gather decorations.

• Journal of Digital Convergence
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• v.15 no.9
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• pp.427-434
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• 2017

The purpose of this study is to analyze the BI elements of expression for four brand's experience spaces in Korea and propose a direction for improvements for such spaces. I started with the theoretical background of nowadays brand marketing and experiential BI elements through literature researches, and then researched the property of spatial expressions to analyze BI elements. Based on this research, I analyzed four domestic brand experience spaces. As a result, brand experience spaces must clearly express the brand image of the company through various contents and situations to effectively communicate and improve BI expressions. Also, they need long-term experience contents for sustained relationships rather than short-term experiences. I expect this study will be a good resource for BI expression research in brand experience spaces. I also believe that this study can guide other studies about BI expression in other fields.