• Advances in environmental research
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• v.2 no.1
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• pp.35-49
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• 2013

Research work on removal of fluoride from water, referred to as water defluoridation, has resulted into the development of a number of technologies over the years but they suffer from either cost or efficiency drawbacks. In this work, enhancement effects of phosphate and silicate on defluoridation of water by low-cost Plaster of Paris (calcined gypsum) were studied. To our knowledge, the influence of silicate on defluoridation was not reported. It was claimed, that the presence of some ions in the treated water samples, was decreasing the fluoride removal since these ions compete the fluoride ions on occupying the available adsorption sites, however, phosphate and silicate ions, from its sodium slats, have enhanced the fluoride % removal, hence, precipitation of calcium-fluoro compounds of these ions can be suggested. Percentage removal of $F^-$ by neat Plaster is 48%, the electrical conductance (EC) curve shows the typical curve of Plaster setting which begins at 20 min and finished at 30 min. The addition of phosphate and silicate ions enhances the removal of fluoride to high extent > 90%. Thermodynamics parameters showed spontaneous fluoride removal by neat Plaster and Plaster-silicate system. The percentage removal with time showed second-order reaction kinetics.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.35 no.1
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• pp.46-51
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• 2007

In this study, test results for fatigue crack propagation of Al-2024-T3511 are presented considering corrosion effects, and fatigue lifes are compared for the cases of corrosion and non-corrosion. Higher corrosion environments show lower fatigue life and faster crack growth. To predict the corrosion fatigue life, a corrosion factor concept is newly introduced and applied in Paris' law. The predicted results show good agreement with experimental data and this corrosion fatigue model can be successfully used for the prediction of fatigue life of aluminum structure with corrosion effects.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.35 no.1
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• pp.52-57
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• 2007

One of the hot issues in composite patching is to reduce the thermal residual stresses between composite patch and aluminum surface which occurs after bonding of composite patch. In this study, the edge crack patching is adopted for different curing cycles. For the analysis, three layer Mindlin plate elements are used, and Paris' law is adopted to predict the fatigue life of composite patch plate. The analysis results show a good agreement with the experimental fatigue life and this technique can be applied for the prediction of fatigue life of aircraft structures.

• Journal of the Korean Society of Costume
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• v.51 no.6
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• pp.147-165
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• 2001

Haute couture denotes a luxurious made-to-order dressmaker's shop. In principle, it refers to a place that is registered with the Paris Apparel Association and has met the size and criteria specified by the association. The features of modern fashion expressed in haute couture have been contemplated by categorizing them into mixed impression appearing in haute couture work pieces. turning the collection event into a spectacle and commercialization for the succession of haute couture. Mixed impression manifested in the haute couture has engendered (1) the creative and dynamic feature (2) eclecticism with popular culture (3) mixed impression of reactionism (4) ethnic characteristics. From the above considerations, one could say that the factors drive the very existence of haute couture and comprise three elements of impeccable backgrounds, They are (1) organizing ability and protective policies of the French fashion industry, (2) relentless experimental spirit of the haute couture designers and (3) Paris that supports creativity and fashion fabrication, have coincided with rising up of the value of persistence on originality of work pieces in accordance with diversifying cultural transformations. consumer-oriented patterns by way of capital symbolized by consumers and restructuring of company operation by each shop. This report describes comprehensive understanding of haute couture, creativity and dynamic power of the haute couture work pieces. Akin to the efforts to maintain the existence of high-grade cultures throughout the overall cultures themselves, haute couture, on the basis of these factors, should also become the motive power through which luxurious culture in fashion is created in the days ahead.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.25 no.5
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• pp.823-833
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• 2001

In recent years, the subject of remaining life assessment has drawn considerable attention in chemical plants, where various structural components typically operate at high temperature an pressure. Thus a life prediction methodology accounting for high temperature creep fracture is increasingly needed for the components. Critical defects in such structures are generally found in the form of semi-elliptical surface crack, and the analysis of which is consequently an important problem in engineering fracture mechanics. On this background, we first develop an auto mesh generation program for detailed 3-D finite element analyses of axial and circumferential semi-elliptical surface cracks in a piping system. A high temperature creep fracture parameter C-integral is obtained from the finite element analyses of generated 3-D models. Post crack growth module is further appended here to calculate the amount of crack growth. Finally the remaining lives of surface cracked pipes for various analytical parameters are assessed using the developed life assessment program.

• Journal of Fashion Business
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• v.18 no.2
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• pp.14-28
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• 2014

This study analyzed the group of experts who were related to cubism, selected among the works of 2010~2013 Paris Collection based on F.G.R.(Focus Group Research). According to the results of this study, there were appeared first, 'a one-piece dress' second, 'H silhouette' third, 'cotton', in case of item distribution and frequency. The analysis was done by using the manner of expression, cubical expression, exaggeration, distortion, dismantlement, geometrical division of face, mix-match look, wraparound repetition, asymmetric structure, etc. Based on the outcomes of the analysis on figurative design elements, this study adjusted three manners appearing on cubism fashion style. First, it was 'avant garde manner' of constitution or 'dismantlement' which was compiled into multi-view representations of overlaps and viewpoints by repetitive use of color tone trimming detail. Second, it was 'geomagnetic block placement' which expresses cubism with geometric partitioning of surface and separation of panel by cutting disintegration. Finally, it was 'distortion and simplification of silhouette' which is a distortion created by constitution-line pressed thin with silhouette. It maximizes the beauty of human body outline, which was distorted by three-dimensional-manipulation, and simplified by ellipsis for another shape for the extension or expansion of detail trimming.

• Journal of Fashion Business
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• v.17 no.6
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• pp.158-175
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• 2013

The purpose of this study is to provide basic information to Korean fashion designers who wish to advance to the overseas collection. This is done through analyzing the design characteristics of Japanese young fashion designers, Tsumori Chisato, Commuun, and Limi Feu, who have successfully launched their designs into the Paris collection and became global fashion brands. Collections of each brand were analyzed by the overall fashion style and design elements. For the overall fashion style, Tsumori Chisato used a romantic style using details with various ornaments, whereas Commuun shows minimal style with a simple silhouette. Limi Feu expressed avant-garde style with experimental patterns. Moreover, these brands expressed different style to other brands by applying Japanese traditional clothes, patterns, and Japanese techniques in modern view point. In terms of design elements, these three brands used the H-line silhouette. Tsumori Chisato used loose fit; Commuun, slim line; and Limi Feu, boxy silhouette. In the case of colors, materials, patterns and details, Tsumori Chisato showed mix & match with various colors, materials, patterns and details. Commuun used mono tone with black & white using only one or two materials. Limi Feu usually used the color black with cotton. According to the style of the brand and region of the collection, the main characteristics of the design and the application of Japanese traditional elements can be different.

• Journal of Fashion Business
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• v.13 no.2
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• pp.50-65
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• 2009

The main purpose of this study is to identify characteristics of shapes of John Galliano's Dior Collection as the chief executive designer of Christian Dior Maison during $1996{\sim}2007$ after he showed himself in Paris in 1990. This study was based on the analyses of John Galliano's design trends of his collections, the pictures of his works in Christian Dior's collection, real works, documents and fashion magazines, newspapers, mass media, internet sites and other visual materials. The study identified characteristics of shapes in Dior Collection until 07/08 F/W as the chief executive designer of Christian Dior Maison, and the design trends before his post-Paris period. Followings are the conclusions of the study. First, Galliano was open to any types of cultures as a liberalist, and also respectful to the tradition or principles. He led the fashion business with new trends by exploring both sides. Second, he succeeded in commercializing his avant-garde feature. Especially, His creativity changed the image of Christian Dior to younger and more casual one. Third, born in England and worked in French, he always took both English (Victorian Style) and French(Napoleon era, Femme Fatal style) sides, and showed excellent formulation that the times needed by combining topical Chinese, Japanese, Egyptian styles.

• Environmental and Resource Economics Review
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• v.26 no.3
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• pp.319-357
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• 2017

The pillar of the Paris Agreement, which will define the efforts of the international community against climate change since 2020, is the INDCs submitted by each country. In this study, the INDCs of the major industrial and developing countries (EU, USA, Japan, China, India) and South Korea are reviewed and national circumstances are analyzed based on the status of industrial structure, power mix and GHG emissions. We will also present South Korea's strategies in future climate change negotiations. South Korea should ; find out the special differentiating factors favorable to Korea with which the international community can agree; and establish an interagency working group to prepare for the periodical renewal of the INDC.

• Journal of Ocean Engineering and Technology
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• v.1 no.2
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• pp.93-100
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• 1987

Corrosion fatigue cracking of the austenitic stainless steel(bese metal & heat affected zone by TIG weld) was studied experimentally under the environments of various specific resistance and air. The characteristics of corrosion fatigue crack growth rate and the environmental constants of paris' rule were investigated for SUS 304 weldments in the various specific resistance. The influences of stress intensity factor range and corrosion on the crack growth rate were compared. The characteristics of corrosion fatigue cracking for the weldments were inspected from mechanical, electrochemical and microstructural point of view. Main results obtained are as follows: 1) As the specific resistance decreases, the environmental constant C of paris'rule increases(hence the corrosion fatigue crack growth rate is rapid), but the environmental constant m decreases, so the effect of corrosion to the crack growth rate is more susceptible than thet of stress intensity factor range. 2) As the stress intensity factor range decreases, the corrosion fatigue crack growth rate of heat affected zone is more susceptible than that of the base metal. 3) The corrosion fatigue crack growth rate of the heat affected zone is more rapid than that of the base metal, because of the phenomenon of softening and the less noble potential coused by wedlding heat cycle. 4) The corrosion fatigue cracking of SUS 304 weldment appears transgranular fracture.