• Proceedings of the Computational Structural Engineering Institute Conference
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• 2005.04a
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• pp.663-671
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• 2005

Distributed operation of overall structural design process, by which product and process optimization are implemented, is presented in this paper. The database-interconnected multilevel hybrid method, in which the conventional design method and the optimal design approach are combined, is utilized there. The method selectively takes the accustomed procedure of the conventional method in the conceptional framework of the optimal design. Design conditions are divided into primary and secondary criteria This staged application of design conditions reduces the computational burden for large complex optimization problems. Two kinds of numeric and graphic processes, are simultaneously implemented on the basis of concurrent engineering concepts in the distributed environment of PC networks. Numerical computation on server and graphic works on independent client are communicated through message passing. Numerical design is based on the optimization methodology and the drawing process is carried out by AutoCAD using the AutoLISP programming language. The prototype design experimentation for some steel trusses shows the validity and usability of the method. This study has sufficient adaptability and expandability in methodology, in that it is based on general theory and industry standard systems.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.10 no.5
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• pp.60-70
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• 2011

Vehicle location detection and wireless communication method have be designed along the same lines as GPS, CDMA and WLAN, which is based upon the selecting factors such as state-of-art technology trend, accuracy, stability, and economic feasibility, in order to select the optimum method of information communication networks for integrated "Transportation-Power-Facilities" on the electric bus. In addition, the key features of each alternative for an efficient linkage have been review and the integration methodology for linking among Transportation Charging Center, Transportation(ITS, BIS) Center and smart Grid Center has been drawn up based on a technical level of difficulty of each alternative, political and administrative difficulties, and expense justification.

• Journal of the Korea Fashion and Costume Design Association
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• v.18 no.4
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• pp.63-75
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• 2016

This study examines the organic geometry in Isabel Toledo's collections in terms of the practicality of American sportswear tradition. This study conducts literary survey combined with case analysis of Toledo's works from her debut collection in 1985 to the recent ones. The organic geometry in Toledo's designs refers to the conversion of two-dimensional garment patterns into three-dimensional garment forms with the body as a medium, which is classified into the following categories in this study. First, 'fluidity' describes Toledo's highly fluid jersey dresses which maintain consistent structures by patchwork draping and suspension technique. Second, 'reductionist structure' illustrates that simple geometric shapes such as circles and squares disappear as soon as worn on the body. Third, 'origami construction' explains folding two-dimensional fabrics into three-dimensional forms, which causes the outlines of the body to appear abstract. Toledo's designs deliver the tradition of American sportswear through the organic geometry of garment construction. Toledo's works are authentic American in the aspects that they are functional and modern; they satisfy the practical needs, prioritize the movements of wearers, pursue multi-functions, and their ornamental elements are accompanied by the construction of garments. Isabel Toledo presents designs drawing on her unwavering aesthetics while continuously developing and experimenting creative ways of garment construction.

• Acta Via Serica
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• v.3 no.1
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• pp.119-138
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• 2018

The dragon of the East was an object of worship and an authority to make rain, unlike the West. The dragon image, one of the positively accepted Chinese motifs with the blue-and-white porcelain of the Ming dynasty by the Ottoman Empire in the 16th century, was combined with gigantic saw-edged leaves to create a genre in Saz style. By combining Eastern dragons with plant motifs instead of clouds, dragons were no longer accepted as authority and nobility but as symbols of life and longevity. Unlike Iran and other countries, the image of dragons in Turkish miniature paintings has evolved into a unique style using Turkish calligraphy. The stylistic feature is that a thick black line that gives the impression of calligraphy forms the dragon's back or a huge saz leaf stalk and forms the axis of the screen. Most of the work was black ink drawing, not painting, and partly lightly painted. In the development stage, the dragon appears as a protagonist on the screen of the early works, but the dragon retreats to the latter half and the saz leaves play a leading role on the screen. A common feature in all paintings, whether early or late, is that they have a militant character and create tension on the screen. From the viewpoint of comparative culture, Turkish dragon miniature drawings of the 16thcentury Ottoman period and the Joseon dynasty are somewhat similar in that they are based on calligraphic character and desire for longevity and loyalty, and are drawn according to certain iconic principles.

• Korea journal of population studies
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• v.32 no.1
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• pp.113-137
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• 2009

This article uses genealogical information to estimate fertility, mortality, and population growth in Korea during the eighteenth and nineteenth centuries. Upper class males' probability of dying as estimated from genealogies was converted into that for the whole male population drawing upon information on colonial mortality and model life tables, which indicated male life expectancy at birth was 23 years. Age-specific marital fertility rates for upper class females as calculated from genealogies were combined with estimates of age at first marriage and information on colonial fertility to derive age-specific fertility rate for the whole female population, which implied a total fertility rate of 6.81. Finally, the estimated indices of mortality and fertility were inserted into equations describing stable populations to find that the Korean population grew 0.62% p.a. during the eighteenth and nineteenth centuries.

• Proceedings of the Korean Vacuum Society Conference
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• 2013.08a
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• pp.90.2-90.2
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• 2013

Vertically-aligned silicon nanostructure arrays (SNAs) have been drawing much attention due to their useful electrical properties, large surface area, and quantum confinement effect. SNAs are typically fabricated by chemical vapor deposition, reactive ion etching, or wet chemical etching. Recently, metal-assisted chemical etching process, which is relatively simple and cost-effective, in combination with nanosphere lithography was recently demonstrated for vertical SNA fabrication with controlled SNA diameters, lengths, and densities. However, this method exhibits limitations in terms of large-area preparation of unperiodic nanostructures and SNA geometry tuning independent of inter-structure separation. In this work, we introduced the layerby- layer deposition of polyelectrolytes for holding uniformly dispersed polystyrene beads as mask and demonstrated the fabrication of well-dispersed vertical SNAs with controlled geometric parameters on large substrates. Additionally, we present a new means of building in vitro neuronal networks using vertical nanowire arrays. Primary culture of rat hippocampal neurons were deposited on the bare and conducting polymer-coated SNAs and maintained for several weeks while their viability remains for several weeks. Combined with the recently-developed transfection method via nanowire internalization, the patterned vertical nanostructures will contribute to understanding how synaptic connectivity and site-specific perturbation will affect global neuronal network function in an extant in vitro neuronal circuit.

• Journal of Fashion Business
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• v.25 no.1
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• pp.96-107
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• 2021

The purpose of this study was to determine how to visualize classic makeup through Korean visual language in old literature. It provides consumers with creativity to understand and communicate and proposes a new conceptual visualization model. The research method was carried out by drawing from old literature studies, previous reproduction records, examples, and international standard diagram text language expression. First, the visualization work expressed in visual language in old literature was an objective and efficient method of information delivery as a characteristic of information design. Second, visual language expressed in old documents could be divided into makeup materials and actions. Also, the diagrams were appropriate for visualizing materials and materials for storytelling. Third, in the visualization of Korean classic makeup in old literature, images were more appropriate than diagrams in the case of action. The researcher proposed a method of visualizing historical knowledge that went one step beyond the existing simple event timing method. Timeline, correlation diagram, image, and text were combined in various ways to find the most effective historical knowledge visualization method. The representation of Korean classic makeup goes beyond the meaning of language or text and is the cultural content of re-creation, which requires systematic globalization.

• Journal of the Korean Society of Clothing and Textiles
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• v.45 no.2
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• pp.346-355
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• 2021

Art strategies have been addressing the problem of volume growth caused by changes in the distribution environment of luxury brands. Art is a universal language that transcends borders and communicates across cultures, therefore, artification acts as a strategy for the globalization of luxury brands. This study aims to study how contemporary luxury brands communicate their artifacts strategically through branded products via artification. As a research method, a literature review and case studies were combined. The cases of artification range from the 2000s to the present, and the top 100 brands in the luxury category of Millward Brown were selected. Drawing on the characteristics of artification defined in this study we analyzed the cases of articulation of luxury brands. As a result, first, appropriation of art in the product frame is carried out by borrowing ideas from renowned works or artists. Second, as an experimental attempt, it is effective to associate the international reputation of an artist with a product through a reinterpretation of the product. Third, as an artistic creation for the brand narrative, luxury products are sublimated into artwork and idealized.

• International journal of advanced smart convergence
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• v.13 no.1
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• pp.37-47
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• 2024

This study presents the results of designing a system that determines the location of a person in an indoor environment based on a single IMU sensor attached to the tip of a person's shoe in an area where GPS signals are inaccessible. By adjusting for human footfall, it is possible to accurately determine human location and trajectory by correcting errors originating from the Inertial Measurement Unit (IMU) combined with advanced machine learning algorithms. Although there are various techniques to identify stepping, our study successfully recognized stepping with 98.7% accuracy using an artificial intelligence model known as Long Short-Term Memory (LSTM). Drawing upon the enhancements in our methodology, this article demonstrates a novel technique for generating a 200-meter trajectory, achieving a level of precision marked by a 2.1% error margin. Indoor pedestrian navigation systems, relying on inertial measurement units attached to the feet, have shown encouraging outcomes.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2007.05a
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• pp.285-288
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• 2007

The use of commercial finite element analysis software to perform the entire process analysis and springback analysis has increased fast for last decade. Pamstamp2G is one of commercial software to be used widely in the world but it has still not been perfected in the springback prediction accuracy. We must select the combination of input parameters for the highest springback prediction accuracy in Pamstamp2G because springback prediction accuracy is sensitive to input parameters. Then we study the affect of input parameters to use member part for acquiring high springback prediction accuracy in Pamstamp2G. First, we choose important four parameters which are adaptive mesh level at drawing stage and cam flange stage, Gauss integration point number through the thickness and cam offset on basis of experiment. Second, we make a orthogonal array table L82[(7)] which is consist of 8 cases to be combined 4 input parameters, compare to tryout result and select main factors after analyzing affect factors of input parameters by Taguchi's method in 6 sigma. Third, we simulate after changing more detail the conditions of parameters to have big affect. At last, we find the best combination of input parameters for the highest springback prediction accuracy in Pamstamp2G. The results of the study provide the selection of input parameters to Pamstamp2G users who want to Increase the springback prediction accuracy.