• Journal of the Korean Society of Costume
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• v.64 no.3
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• pp.32-46
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• 2014

The purpose of this study is to propose a solution for Goguryeo costume and its materials, colors, patterns, and accessories, which have not been dealt with in precedent studies and were treated as irrelevant subjects. The specific object of reconstruction with identification from the historical viewpoint is noble woman's costume(Yu and Gun) on the mural paintings of Jang-Cheon No.1 tomb in Jip-An province. As above, the reconstruction process of Yu(Jacket) and Gun(Skirt) worn by noble woman as depicted on the mural painting of the Baek-Hee-Gi-Ak-Do(百戱伎樂圖) in Jang-Cheon No.1 ancient tomb is suggested in this study. The most important issue for consideration was how to represent and exhibit it so that it resembles the mural painting as closely as possible. And the problems that arose at the time were the ratio and silhouette, which revealed disparities between the one on the mural painting and the costumes reproduced with identification from a historical viewpoint. The most difficult aspect of this work was due to the fact that the actual mural paintings were not available for verification. Therefore accuracy on details such as structure, materials, colors, patterns and accessory were difficult to obtain. So a further analysis of patterns, silhouettes, materials and colors are required for the precise representation of costume and dress on the mural painting.

• Journal of the Korea Fashion and Costume Design Association
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• v.17 no.2
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• pp.63-78
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• 2015

The purpose of this study is to compare the style of clothing by type of the Goguryeo and Xianbei Tribe based on the examination of the literature centered on the historical relationship between Goguryeo and Xianbei Tribe. The research results are as follows. First, it was found that both the apparels of Goguryeo and Xianbei Tribe had hemp cloth with the V-neckline with the blocked front part and hemp cloth with the open front that is worn by overlapping the straight collars of the upper garment. Both men and women wore the garment of the straight line collar that is worn by folding towards the left or right, or upper garment of the round shaped collar. Women wore an upper garment with short sleeves on top of the upper garment of Korean traditional clothes while men wore pants for the lower garment, and women wore skirt and apron with triangular cloth decoration on top of the skirt. Second, Goguryeo Anak Tomb No. 3 mural painting(year 357) shows that apparel worn by the lady who is the wife of the owner of the tomb is similar to the apparel worn by the lady in the lacquer painting for folding screen of the Sima Jinlong Tomb ancient painting on the woman of chaste reputation in terms of the form and structure.

• The Research Journal of the Costume Culture
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• v.31 no.2
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• pp.228-247
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• 2023

In this study, an empirical analysis was conducted on the use of Korean design elements in the Hanbokwave project in 2022 in order to identify the expressed fashion characteristics and define Korean style. A case study was conducted on 98 items of clothing representing 10 Hanbok designer brands, and an analysis card was developed and used that classifies the silhouette of each item in detail. The analysis showed that in addition to the traditional skirt and Jeogori, the four stages of simulakr's image were prevalent in various fashion items such as shirts, blouses, jackets, crop tops, vests, dresses, and pants. In the composition of sleeves, many western clothing methods such as set-in-sleeve use and adjustment, hardcover buttons, and zippers were used to fuse the three-dimensional structure of western clothing and elements of traditional Hanbok to redefine it as postmodernism. It was recognized as a modern fashion, such as the trend of mixing and matching tops and bottoms, not a skirt and Jeogori set, by layering traditional clothes without hesitation or using them as a dress. As for the silhouette of the bottoms, the A-line showed a high frequency, and the prominent shape was identified as a traditional element widely used in modern Hanboks along with the element of wrinkles. This study is thought to be used as practical data for design development for the globalization of K-fashion in the future.

• Journal of Korea Water Resources Association
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• v.38 no.8 s.157
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• pp.665-674
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• 2005

The aim of this study is to evaluate 3 types of sedimentation basins: dredging, shield skirt and auxiliary dam, constructed at inlets of two irrigation reservoir and to estimate the most beneficial type and fitted size, SAR(surface to area ratio), for pollutant removal efficiency(RE). For this, RE of major water quality items and change of physicochemical properties in sediments before and post construction of sedimentation basin(SB) were investigated. RE depended on SB types, water quality items and survey times with wide range from $-87\%$ to $92\%$. Long term overall removal efficiency by ROC(regression of concentration) method were $18\%$ in dredging, $29\%$ in shield skirt and $42\%$ in auxiliary dam type. There was a change of physicochemical properties in sediments at auxiliary dam type, while a slight change at dredging and shield skirt type. In comparison to RE, SAR and hydraulic retention time at 3 types of SB, auxiliary dam type was the most beneficial one. Thus, it is recommended that SB would be constructed in completely separated structure from water body of a reservoir with SAR ranged from 0.7 to $1.0\%.$

• Coupled systems mechanics
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• v.1 no.4
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• pp.381-395
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• 2012

Dynamic response of Pile Supported Structures is highly depended on Soil Pile Structure Interaction. In this paper, by comparison of experimental and numerical dynamic responses of a prototype jacket offshore platform for both hinge based and pile supported boundary conditions, effect of soil-pile-structure interaction on dynamic characteristics of this platform is studied. Jacket and deck of a prototype platform is installed on a hinge-based case first and then platform is installed on eight skirt piles embedded on continuum monolayer sand. Dynamic characteristics of platform in term of natural frequencies, mode shapes and modal damping are compared for both cases. Effects of adding and removing vertical bracing members in top bay of jacket on dynamic characteristics of platform for both boundary conditions are also studied. Numerical simulation of responses for the studied platform is also performed for both mentioned cases using capability of ABAQUS and SACS software. The 3D model using ABAQUS software is created using solid elements for soil and beam elements for jacket, deck and pile members. Mohr-Coulomb failure criterion and pile-soil interface element are used for considering nonlinear pile soil structure interaction. Simplified modeling of soil-pile-structure interaction effect is also studied using SACS software. It is observed that dynamic characteristics of the system changes significantly due to soil-pile-structure interaction. Meanwhile, both of complex and simplified (ABAQUS and SACS, respectively) models can predict this effect accurately for such platforms subjected to dynamic loading in small range of deformation.

• Journal of the Korean Society of Costume
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• v.59 no.5
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• pp.135-151
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• 2009

This study aims to estimate the chronical year of 'Euiin'-Park's clothes excavated costumes from the tomb of 'Lady Euiim-Park's which has been stocked in Gyeonggi Provincial Museum. The methods of this study is, observed structure and style of clothes and characterize and compared with other similar clothes excavated from other tombs. The result showed Park's clothes was estimated to be from the mid to late 16th century. The elements that enable us to estimate the period are first of all the wearing of women's Dan-ryung, and the shape of the gore and sleeve. Second the shape of Jegory's collar, and Gyron-ma-gi. Third the form of layered skirt and Somaja[hat]. Fourth tiger hyung-bae which embroidered patches on the breast and back of official uniforms. Last, the style and types of Jinju-Ryu's who's the spouse clothes. It will be useful to estimate the chronical year of clothes excavated from unidentified tombs when refer this styles of clothes.

• Journal of the Korean Society of Visualization
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• v.21 no.2
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• pp.8-13
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• 2023

The primary challenge in improving fuel efficiency and reducing air pollution for commercial vehicles is reducing their aerodynamic drag. Various flow control devices, such as cab-roof fairing, gap fairing, cab extender, and side skirt have been introduced to reduce drag, however, the drag reduction effect and applicability are different depending on each commercial vehicle model. To evaluate the fuel consumption of heavy vehicles, a comprehensive research approach, including drag force measurement, flow field analysis is required. This study investigated the effect of a cab extender, which installed rear region of cab, on a drag coefficient of commercial vehicle through wind tunnel experiments and CFD. The results showed that the cab extender significantly modified the flow structure around the vehicle, leading to 8.2% reduction in drag coefficient compared to the original vehicle model. These results would provide practical application for enhancing the aerodynamic performance and fuel efficiency of heavy vehicle.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2006.05a
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• pp.1044-1048
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• 2006

Nuclear power generation is very dangerous in occasion that skirt of structure by earthquake although it is high effective generation that can make a lot of energies with few raw material. when design, it must consider a lot of problems caused by an earthquake. The seismic analysis of the structure has been great concern in the engineering society with an effort to reduce the severe damages from an earthquake. So the earthquake resistant design is one of the crucial design procedures of a gate valve used in nuclear power generation. The gate valve which has the contact area between stem and bellows. Because of the contact area. The gate valve should be given high stress and frictional wear. In this thesis, Considering the gate valve which has some contact distance between stem and bellows. The gate valve which has some contact distance is analyzed by a commercial FEM code of Ansys and Then compared to the gate valve behavior which doesn't have contact distance.

• The Research Journal of the Costume Culture
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• v.5 no.2
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• pp.269-284
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• 1997

Followings are the analysis of the two areas'costumes, the Renaissance and Baroque, as the analytic and synthetic structures. From the analytic structure of the costumes, the analytic body and of the Renaissant man's outer garments is manteau, pourpoint, trousses, bas du chausses, and codpiece of the hat is toque. And the analyic body of the Baroque, man's costume is pourpoint and rhingrave, of the under garments is chemise, of the hat is felt, of the shoes is shoes. In the analytic structure of woman's costume, the analytic body of the Renaissant outer garments is robe, of the under garments is corps-pique, chemise, and vertugadin, of the hat is french hood. And the analytic body of the Baroque outer garments is skirt and overdress, of the undergarments is corps-baleine. The results we have got from the analysis of the synthetic structures of the costumes is that other analytic elements are chosen and united as the component features of the major analytic elements among the analytic elements in the tables of 3-1, 3-2, 3-3, and 3-4. If we compare the two analytic bodies of the two areas, we can see that the names of the costumes were changed and the component features about the names were changed according to an area, too. And we can see the synthetic structures were changed according to the analytic body in the analytic structures were changed according to the analytic body in the analytic structures with the synthetic structures.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.45 no.1
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• pp.115-119
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• 2008

In this paper, the linearity of Doherty power amplifier has been improved by applying a new Photonic Bandgap(PBG) structure on the output of amplifier. The reposed spiral PBG structure is a two-dimensional(2-D) periodic lattice patterned on a dielectric slab that does not require nonplanar fabrication process. This structure has more broad stopband and high suppression performance than the conventional three cell PBG. Also, It has a sharp skirt property. We obtained the 3rd-order intermodulation distortion(IMD3) of -33dBc for CDMA applications with that of maintaining the constant power added efficiency(PAE), the IMD3 performance is improved as much as -8 dB compared with a Doherty power amplifier without PBG structure. Moreover, the physical length of PBG is shortened, therefore the whole amplifier circuit size is considerably reduced.