• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.19 no.1
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• pp.75-80
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• 2006

We have fabricated a carbon nanotube field emission display(CNT-FED) panel with a 2 inch diagonal size using a screen printing method and in-situ vacuum sealing technology. The field emission properties of CNT FED panel with square-type CNT emitters. As results, the square-characterized and compared with those of the line-type CNT emitters. As results, the square-type CNT emitters showed much larger emission current and more stable I-V characteristics. Light emission started to be occurred at an electric field of 3.5 V/${\mu}m$ corresponding to the anode-cathode voltage of 700 V. The vacuum level inside of the in-situ vacuum sealed panel was obtained with $1.4 {\times} 10^{-5}$ torr. The sealed panel showed the similar I-V characteristics with the unsealed one and the uniform light emission with very high brightness at a current density of $243 {\mu}A/ cm^2$ obtained by the electric field of 10 V/${\mu}m$.

• Transactions of the Korean Society of Mechanical Engineers
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• v.11 no.5
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• pp.755-761
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• 1987

Two-Dimensional incompressible laminar boundary layer with the reversed flow region is computed using the parially parabolized Navier-Stokes equations in primitive variables. The velocities and the pressure are explicity coupled in the difference equation and the resulting penta-diagonal matrix equations are solved by a streamwise marching technique. The test calculations for the trailing edge region of a finite flat plate and Howarth's linearly retarding flows demonstrate that the method is accurate, efficient and capable of predicting the reversed flow region.

• Journal of the Korean housing association
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• v.25 no.3
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• pp.165-179
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• 2014

The purpose of this study was to draw application elements of housing interior design according to user-oriented sensibility types. The sensibility evaluation experiments were conducted to target the general user 118 people using the sensibility evaluation tool for housing interior space. The results of the analysis were as: To produce the 'cozy' space, the colors and materials giving soft and natural feeling should be used. For the 'practical' space, type of ceiling and window that give the visually open feeling, the user-oriented furniture arrangement that allows using the space efficiently. For the 'cheerful' space, the simple and natural effects should be produced by using closed space that stable. For the 'traditional' space, the natural fishing material having rough texture should be used. For the 'unique' space, the space contained the dynamic feeling by the diagonal or vertical line and the graphic expression in the wall. For the 'congenial' emotional space, basic is the symmetric, stable and simple space. On the other hand, for the material, small size, natural texture or typical and soft materials should be used. For the 'sensuous' space, the dynamic and vertical sense of space should be expressed by the type of ceiling. The most important elements for the space of 'gorgeous' sensibility, is the color.

• Journal of Fashion Business
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• v.10 no.2
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• pp.147-165
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• 2006

The purpose of this study was to develop design of maternity dress combined with nursing. Six maternity wears combined with nursing were developed through the literature, preceding studies, and web sites those were about pregnancy, breast feeding, a maternity wear, and a nursing wear. The results of this study were as follows: 1. In order to develop clothes of diverse styles and designs, an after five dress, a poncho style blouse, wrap culotte as well as a skirt suit, a pants suit, an one-piece dress were designed. 2. It was established to make more amounts of front ease than those of back ease and to supplement a frontal hanging portion in consideration of breast development and abdominal prominence. 3. In order to make use of a maternity wear after a birth, stretch fabric was used for an abdominal part or whole clothes. Also an empire line and pleats, a poncho style, a shirts blouse, and inserting a string were used for it. 4. the fabrics of cotton, mixed cotton, polyester were used because pregnant women and nursing mothers perspires more than others do. 5. The horizontal, vertical, diagonal slits for a breast feeding were made. The storm flap of a trench coat, a machine pleated fabric, a poncho, a bolero style were used for a nursing cover.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.30 no.12C
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• pp.1167-1174
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• 2005

In this paper, we propose a priority method on same co-occurrence count in adaptive rank-based reindexing scheme for lossless indexed image compression. The priority on same co-occurrence count in co-occurrence count matrix depends on a front count value on each raw of co-occurrence count matrix, a count value around diagonal line on each raw of the matrix, and a count value around large co-occurrence count on each raw of the matrix. Experimental results show that our proposed method can be reduced up to 1.71 bpp comparing with Zeng's and Pinho's method.

• Journal of the Korean Society of Costume
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• v.65 no.2
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• pp.92-104
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• 2015

Colored thread quilting is sewed up padded with Han-Ji (한지, korean paper) string using colored thread. This showed up geometric pattern with repeated line of straight, diagonal, curve. According to geometric pattern, Colored thread quilting showed visual effects. The purpose of this study is to present manufacturing techniques, kinds, use, shape of traditional colored thread quilting. furthermore, This study has produced fashion items that can be used in modern life by using techniques of colored thread quilting. According to the fashion items, It present succession and utilization of techniques of colored thread quilting. This study was conducted in the following manner First, It studied traditional colored thread quilting techniques through the documents consideration, previous researches and by surveying antiquity in the museum. 2nd, It tried to make a reproduction about techniques of traditional colored thread quilting. 3rd, This study has selected and developed item and design of fashion items that can be used pragmatically in modern life by using techniques of colored thread quilting. And Fashion items that have been produced in this study is a total 10 kinds that was composed of Vest 4ea, Pendant & Brooch 6ea. Colored thread quilting is a unique technique of thread quilting that combines powerful practicality with decorativeness only in korea. These technique hope that it can developed more variety of items in modern life.

• Computers and Concrete
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• v.22 no.6
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• pp.563-572
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• 2018

Uniaxial compressive strength test and uniaxial compression creep one were produced on four groups of twelve concrete specimens with different hole number by RLW-2000 rock triaxial rheology test system. The relationships between horizontal holes and instantaneous failure stress, the strain, and creep failure stress, the strain, and the relationships between stress level and instantaneous strain, creep strain were studied, and the relationship between horizontal holes and failure mode was determined. The results showed that: with horizontal hole number increasing, compressive strength of the specimens decreased whereas its peak strain increased, while both creep failure strength and its peak strain decreased. The relationships between horizontal holes and compressive strength of the specimens, the peak strain, were represented in quadratic polynomial, the relationships between horizontal holes and creep failure strength, the peak strain were represented in both linear and quadratic polynomial, respectively. Instantaneous strain decreased with stress level increasing, and the more holes in the blocks the less the damping of instantaneous strain were recorded. In the failure stress level, instantaneous strain reversally increased, creep strain showed three stages: decreasing, increasing, and sharp increasing; in same stress level, the less holes the less creep strain rate was recorded. The compressive-shear failure was produced along specimen diagonal line where the master surface of creep failure occurred, the more holes in a block, the higher chances of specimen failure and the more obvious master surface were.

• Korea Trade Review
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• v.45 no.4
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• pp.45-63
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• 2020

This study aims to identify the dimensions of trade show performance in Iranian trade shows and apply the revised importance-performance analysis. The IPA method integrates two types of indirect importance and a composite I-P mapping using traditional four-quadrants, as well as a diagonal line on a two-dimensional grid. Based on the analysis results, this study presents several suggestions to contribute to the development of the trade show industry. First, it is noted that the dimensionality of trade show performance in a developing country context can be different from that of prior literature. Taking different industry development stages of a show hosting countries, examining the dimensions of each trade show performance with every effort to derive proper exhibitors' implications is necessary. Second, the use of statically-derived importance is recommended while considering respondents' convenience to reduce their time and fatigue when collecting data at the busy booths. Further, applying composite I-P mapping is suggested as an effective diagnostic tool to provide optimal trade show strategies for the exhibitors under the dynamic and ever-changing global business environment.

• Journal of the Korea Fashion and Costume Design Association
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• v.17 no.1
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• pp.53-68
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• 2015

The purpose of this study is to analyze check pattern of nail art from 2011 to 2013. The results of this study are as follows; 1) Check pattern of nail art is total 257 patterns, and there are 84 argyle, 29 tartan, 24 harlequin, 24 over, 23 window-pane, 15 stitcheds, 13 hound tooth, 10 block, 10 madras, 8 gingham, 8 gradation, 7 shepherd, and 2 tattersall check patterns. Through this result, in nail art, the relatively simple patterns such as a vertical pattern, a horizontal pattern, and cross or overlap diagonal line are used more than elaborate and complex check patterns of a fibrous tissue from a weaving process. 2) In check pattern of nail art, N-affiliated color and R-affiliated color are remarkably well-used, because of the effects of argyle, tartan, window-pane, harlequin, stitched, over, and hound tooth check patterns used the most during the past three years. Especially, most tartan, harlequin, over, and hound tooth check patterns use their own special colors such as R-affiliated colors and N-affiliated colors as it is, and argyle, window-pane, stitched, and over check patterns use well by arranging N-affiliated colors and R-affiliated colors. 3) The most used expressive technique is hand painting to express check pattern in nail art, because new products related to UV gel are well launched. These materials can draw fine line that is hard to express by existing polish easily and simply, and not only have set quickly hard, so procedure time is very short, so it is compatible to draw check pattern personally, but also it is well covered, so check pattern is more clearly expressed.

• Journal of the Korean Home Economics Association
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• v.44 no.3 s.217
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• pp.91-102
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• 2006

The following research compares the two apparel systems that are used in Korean colleges, Gerber and PAD, by analyzing the advantages and disadvantages of their Dart-related functions in the pattern construction process. The results are as follows. 1. Regarding transformation methods, the Gerber system was able to use pivot method, while the PAD system was able to use both pivot method and slash methods. in other issues, the PAD system was not able to synthesize more than two Darts, and only showed differences for other functions. On the other hand, the diamond-shape Dart and diagonal Dart could be produced only in the PAD system, while curvy shaped Dart could not be produced in either system. 2. The change in side lines due to the change of Dart width only occurred in the PAD system, while the change in Dart length only occurred in the Gerber system; both systems need improvement. 3. As for the pattern outer line connection capability, which is a Dart automatic transformation function, both systems showed unnatural shapes which need to be corrected. 4. We first constructed a Dart shape composition chart according to the number of Darts. Based on this, we examined whether they have appropriate shapes. Among single-Darts, the Gerber system had an inappropriate, outer-line shape for Underarm Dart and Center Front Dart, and among two-Darts, it was inappropriate for Side and Waist Dart.