• 한국정보통신설비학회:학술대회논문집
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• 2004.08a
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• pp.377-381
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• 2004

안테나를 소형화시키기 위해 많은 노력을 들여왔다. 모노폴 안테나의 크기를 줄이기 위해 많은 연구가 있어왔고 그 중 모노폴 끝에 원반 모양의 패치를 붙인 것이 top-hat 패치 안테나이다. 그리고 다른 대표적인 방법 중의 하나가 PIFA(Planar inverted-F antenna) 구조의 안테나이다. 이 둘을 이용해서 좀 더 작은 크기의 안테나를 구현할 수 있고 안테나 구조를 적절히 변형하여 이중 공진을 일으킬 수 있다. 본 논문에서는 패치에 슬롯을 주어 전류의 흐름을 변환시켜 이중 공진을 일으킬 수 있는 구조를 제안하였다. 무엇보다도 중요한 점은 이 안테나의 몇 가지 요소를 변화시킴으로써 공진주파수를 원하는 대로 바꿀 수 있다는 것이다.

• The Research Journal of the Costume Culture
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• v.4 no.2
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• pp.187-206
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• 1996

The Purpose of this study is to analyze the clothing excavated in Xinjinag, concerned with the study of clothing culture in Central Asia. The results are as follows : A headwear is a corn hat or round hat, the material is field, fur or woolen textiles. For hair accessories, feathers or wooden pins were used. The corn hats of the Scythians and the Huns also had same design and did not change even after being influenced from the culture of Han Dynasty. A woman's hair styles was many strips of braid, a man's hair style was a braid or a topknot. Regarding the clothing, a woman wore pull-over type and a man wore caftan for a jacket. Both a man and a woman wore widened coat and trousers as well as felt socks and leather boots, and longer socks than boots are the characteristics of the clothing of nomadic horsemen. The textiles was mainly wool, but silk was used for coats, socks and gloves in high society imported from China through the Silk Road after the 2nd century B.C. Compared with Korea clothing, a corn hat, widened coat, trousers and leather boots are similar with those of Koguryo. The influence of western culture is shown in a man's short hair, animal design, W1-Kum, a woman's pull-over type and a round neckline.

• Korean Journal of Human Ecology
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• v.11 no.3
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• pp.301-306
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• 2002

The purpose of this research is to provide basic data by which more suitable hats manufacturing can be possible. The method for this research was to ask male and female college students what their favorite design and size are by the questionnaire. Data were collected from 383 college students in Seoul, Iksan. Statistical tests such as descriptive analysis, Crosstabs, F-test, Duncan test, were used to analyze the data. The conclusion which gotten through this process is that, first of all, their favorite design is Apollo cap, and there is no difference between male and female college students. Then, It also appeared that most of them didn't know their own hat size, but responded that their hats are suitable for their heads, it means that they are contented with their hats. Yet, those positive responses are, in some part, due to the insufficiency of the questions that can point out negative responses.

• International Journal of Costume and Fashion
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• v.5 no.2
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• pp.28-45
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• 2005

La $d{\acute{e}}marche$ et l'objet de cette recherche sont d'analyser, psychiquement, biologiquement, les marques de $l'intersexualit{\acute{e}}$ $pr{\acute{e}}sentent$ en Occident et les elements intersexuels, binaires dans le $v{\hat{e}}tement$, et ${\acute{e}}galement$ de comprendre $l'ambigu{\ddot{i}}t{\acute{e}}$ ou encore la fusion des $identit{\acute{e}}s$ $sexu{\acute{e}}es$. qui $pr{\acute{e}}sente$ symboliquement ${\grave{a}}$ travers le $v{\hat{e}}tement$, dans la $soci{\acute{e}}t{\acute{e}}$ moderne. $Malgr{\acute{e}}$ tous les points communs et $diff{\acute{e}}rents$, la base fondamentale dans les $th{\acute{e}}ories$ de I'Occident est que tout individu est psychiquement, biologiquement en quelque sorte un intersexuel qui s'ignore, avec des variations selon l'individu. En $d{\acute{e}}finitive$, les compositions doubles des ${\acute{e}}l{\acute{e}}ments$ dans le $v{\hat{e}}tement$ occidental montraient $embl{\acute{e}}matiquement$ nos $qualit{\acute{e}}s$ doubles, masculins et $f{\acute{e}}minins$, et les trois ${\acute{e}}l{\acute{e}}ments$ semblent primordiaux pour $l'{\acute{e}}lucidation$ de la $pr{\acute{e}}disposition$ du porteur : la couleur du tissu, sa texture et la forme du $v{\hat{e}}tement$. La mode d'aujourd'hui bascule entre masculin et $f{\acute{e}}minin$. Cette fusion de la mode semble le reflet d'une tendance intersexuelle et d'une fusion du genre.

• Journal of the Korea Fashion and Costume Design Association
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• v.20 no.4
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• pp.1-16
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• 2018

This study focuses on the correlation between Kotgal and paper-folding. This paper first examines the meaning and history of Korean ancient Kotgal and then investigates relationship between Kotgal and Korean paper-folding culture which has been inherited in various ways. Throughout the study, literature research and analysis have been conducted along with empirical studies. The results of the study are as follows. First, it has been told that Kotgal was used a as a trident hat symbolizing the sky, land, and man, whereas Korean paper-folding is known as closely related to the folk beliefs which had existed since ancient times. From ancient times, the Korean ancestors expressed the Three Gods representing beauties of the nature, 'sky(Chun), land(Ji) and man(In)' on the conical hat and prayed for their wish to the heaven. Second, Kotgal has been evolved in various ways from ancient times through Goryeo and Joseon Dynasty to present. The form of Kotgal has begun with folding and this is closely related to the origin of Korean paper-folding, which is the Korean traditional craft. Third, the paper-folding tradition of Korea has been variously applied in the Korean culture such as rituals, life crafts and plays and expresses the unconventional philosophical concepts unique of Korea. In conclusion, this study evidently shows that the Korean philosophical ideas behind Kotgal which originated from ancient paper-folding are scientific and systematic.

• Fashion & Textile Research Journal
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• v.8 no.2
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• pp.156-160
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• 2006

Poststructuralism gives us a clue to totally understand fashion design, which is in danger of difficulty and frivolous ambiguity caused by indiscreet creating and groundless interpretation of Postmodernism. In addition, it leads us to have a new viewpoint, which is freed from stereotyped past concepts and constraints, with regard to fashion design. The main purpose of this study is to examine the various theoretic systems and characteristic concepts of Poststructuralism, and supply a new cognizance frame to understand the processes of fashion design with free and varied notions of deconstruction and generation, in place of the former systematic and consistent interpretation of meaning. Concerning fashion design, present study employs a two-way research method: analysis of theories and analysis of contents. In analysis of theories, a cognizance frame is proposed that can categorize the concepts of cognizance are classified into Nonboundariness, Otherness, and Textualism, derived from various theories of Poststructuralism, as traits expressed in fashion design. In analysis of contents, 10 fashion designers are chosen who exhibit new works at every Pr$\hat{e}$t-$\acute{a}$-Porter collection. Including 20 works that those designers displayed at Pr$\hat{e}$t-$\acute{a}$-Porter from spring/summer 2001 through autumn/winter 2004-2005, a total of 200 works are analyzed.

• Journal of Fashion Business
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• v.18 no.4
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• pp.28-44
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• 2014

The purpose of this study is to analyze the hat fashion worn by the British royal family. The research range has been limited to hats which Elizabeth II, Camilla Parker Bowles, and Kate Middleton wore from April 29, 2011 to April 11, 2014 when Kate Middleton married Windsor Prince William and became part of the royal family. The methods of the research were: previous studies and literature about the royal family were referred to, the function and types of hats were considered, and then the plasticity of the designs seen in hat fashion of the royal family were analyzed. The results are as follows: first, the shape of the hats of the British royal family: Three-dimensional shapes(84.2%) were the most frequent, the detailed shape of the hat Canotier(33.5%), Boater(12.7%) and Bowler(10.3%) had greater frequency. Second, the color of the hats were W(13.7%), Bk(10.5%), Y(9.8%), B(9.6%), YR/PB(9.4%) and RP(9.2%) color. The Color Combination is the Monochrome Color(62.3%), Analogous Color(16.1%), Accent Color(13.2%) and Complementary Color(8.4%) were most frequent. Third, the material of the hats were Felt(44.5%) and Straw(40.3%) were used most frequently. Finally, the decoration of hats were: Flowers(25.7%), String(25.0%), Ribbon(18.4%) and Feathers(17.9%) were the most common. This study can be utilized as basic data for effective styling and design ideas in the field of total fashion.

• Journal of the Korea Fashion and Costume Design Association
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• v.9 no.2
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• pp.115-125
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• 2007

A hat is a general term for what human beings wear on their heads in order to protect them from the cold or heat, to be used for ornament, or to symbolize social position. A hat represents the position of a man who wears it, attitude toward the society, and faith for a religion for males. Since men's hats can create their image and uniqueness in casual wear from current fashion items, they are proposed as a fashion accessory item of designers each season. The purpose of this study is to review hats, which are part of costume, in a more analytic method. The research range of this study is hats for men in the upper class in the 17th to 18th centuries from the history of costume when diverse periodic and characteristic costume changes occurred. In the 17th to 18th centuries in the middle of the Chosun Dynasty, changes in costume occurred as the feudal society of the dynasty had been dissolved since the Japanese invasion in 1592. Political power was established in France as the Baroque Age began in the 17th century. Since European costume, especially women's costume led fashion in France, the country represented the age better than any other countries. Aristocratic costume in the Rococo Age of the 18th century was changed to completely different shape of costume after the French Revolution. In this regard, this age was deemed to be the most appropriate for the comparison or costume. Another purpose of this study is to review the common and different features of periodic factors that affect changes in costume by researching the hats of the two countries in the same age in order to understand relation between periodic characteristics and costume throughout history of costume.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.1
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• pp.41-47
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• 2016

In Black hat USA 2014, a hacking method to infer the password entry of smartphone or smartpad with google glass in distance is presented. In this paper, we design the secure keypad to protect the key stroke inference attacks with google glass which has unique layout ensuring same input entry but different input value.

• International Journal of High-Rise Buildings
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• v.7 no.3
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• pp.255-264
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• 2018

This paper introduces three distinctive means for the use of a 189-meter high damped structure ensuring safety against earthquake: 1. Realization of L-shaped elevational structural planning: The bottom and top of the tower have belt trusses and hat trusses respectively to restrain the bending deformation. Furthermore, large-capacity oil dampers (damping force 6,000 kN) are installed in the middle part of the tower to restrain the higher-mode deformation. 2. Realization of L-shaped planar structural planning: We devised a means of matching the centers of gravity and rigidity by adjusting planar rigidity. Moreover, viscous damping devices are located at the edges of the L-shaped plan, where torsional deformation tends to be amplified. We call this the "Damping Tail" system. 3. Composite foundation to equalize deformations under different loading conditions: We studied the vertical and horizontal deformations using sway-rocking and 3D FEM models including the ground, and applied multi-stage diameter-enlarged piles to the tower and a mat foundation to the podium to keep the foundations from torsional deformations and ensure structural safety.