• 패션비즈니스
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• 제2권1호
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• pp.25-34
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• 1998

This study has it's purpose in examining the materialized background. characteristic of African traditional costume and the A fro fashion of the year 1960. and it's influence on the contemporary fashion. Then the findings are applied to suggest a new way of image creation. 1960' s was the year in which people tried to free oneself from the ruling culture of the social standards. war. and the development of science. By such movement. people started to get interested in the environment and ecology. This then lead to the interest of the rights of the minority. With the youngs as the central figure A fro hair style and dashiki appeared as the street fashion. The characteristics of African costume applied to A fro fashion in 1990' s is as below. First. the North African style. Djellaba. and wrap style in the most common silhouette. Second. heavy materials such as stone. copper. silver. and gold are used. Necklace can be classified according to it's simple but. modern style. delicate but grand style. Bracelets are however. broad in width and many rings are worn widely. Third. Multi colored stripe and prints inspired by tattoo and deformation using red brown. dark beige. and orange are printed on textiles such as see through. Fourth. image of tattoo and deformation are applied to make-up. A fro hair and corn beads are also African taste. Fifth. African taste in recent fashion showed off the black beauty by appointing black models at the collection. In analyzing the study done above. characteristic images of African costume. accessaries and body painting was applied in presenting 3 creative designs. The first design named "Geometric I", took it's motif from the geometric pattern of the body painting with the afro hair. "Geometric II", the second design, showed it's application of geometric pattern of mutilation and the silhouette of the costume by using the see through. The third design called the "Geometric III" showed that the aesthetic and decorative side of clothing can be satisfied by applying various form and color of accessaries as the motif. A fro fashion is chosen as one of the folklore mood and it's beauty is conveyed on till today.

• 한국한의학연구원논문집
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• 제12권3호통권18호
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• pp.69-77
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• 2006

Background and Purpose The purpose of this study was to confirm that what symptoms are adequated indicator in the Gi-Deficiency patients. Methods In the time period July. 2005 to Sep. 2006, 136 patients with a first-ever stroke admitted in the department of Internal Medicine of Daejeon University Oriental Medical Hospital in Daejeon city, Wonkwang Oriental Medical Hospital in Iksan, JeonJu city were included. Patients were hospitalized within 3 months after the onset of stroke. Stroke patients had been interviewed by resident who studied standard operation procedures in Fundamental Study for Standardization and Objectification of Differentiation and Pattern Identification of Syndrome of Oriental Medicine for Stroke. Gi-deficiency patients was confirmed by medical specialist diagnosis, resident diagnosis, case report form analysis without a dissenting voice. Results Gi deficiency group included 23 case, Non Gi deficiency group 47 case out of 136 patients. Fatigue, weakness purse, somnolence, low voice, difficulty of uprise, pale face, pale tongue were higher among Gi deficiency group. Gi deficiency and Non Gi deficiency patients do not significantly differ in white coating tongue, light-red tongue, poor appetite, frequent sweating, teeth printed tongue. Conclusions This study was insufficiency because sample size very small. More data from prospective cohort studies will help to Korean Standard Differentiation of the Symptoms and Signs for the stroke.

• 한국전자파학회논문지
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• 제29권10호
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• pp.752-757
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• 2018

본 논문은 인쇄기판을 금속 구조물에 접착하여 제작한 77 GHz 도파관 슬롯 배열 안테나의 성능 평가 결과를 제시한다. 77 GHz 도파관을 상판과 하부 구조체로 나누어 상판은 저가로 미세 슬롯 구현에 유리한 인쇄기판을 이용하여 제작하고, 하부 구조체는 금속 가공하여 제작한 후, ACF(Anisotropic Conductive Film)을 이용하여 접합하였다. 안테나 성능평가를 위해 $1{\times}16$ 슬롯 배열 안테나를 제안 방식으로 제작하고, 이득과 패턴을 측정하여 시뮬레이션 값과 비교하였다. 측정 결과, 이상적 접합 조건으로 시뮬레이션한 결과 대비 2.3~3.5 dB의 이득 저하가 나타났지만 패턴은 변화가 거의 없으며, 제안 방식을 이용하면 77 GHz에서 약 17 dBi의 이득의 슬롯 안테나를 저가로 간단히 제작할 수 있음을 확인하였다.

• 한국산업정보학회논문지
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• 제11권5호
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• pp.98-104
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• 2006

본 논문에서는 폴디드 구조를 이용한 블루투스용 PCB 모듈 일체형 초소형 안테나를 제안하고, 시제작 및 측정을 통하여 성능을 확인하였다. 제안된 안테나는 PIFA(Printed Inverted F Antenna) 형태로서 급전부와 단락부의 위치 조정으로 임피던스 정합을 최적화 하고 안테나 복사구조를 최적화 하였다. 상용 소프트웨어인 CST 사의 MWS를 사용하여 변형된 역 F 안테나의 구조 변형에 따른 안테나 특성 변화를 분석하였으며 실제 제작품 측정결과와 비교하였다. 최적 설계된 안테나의 크기는 $17.3{\times}6{\times}0.8mm$로서 블루투스 시스템 적용 주파수 대역에서 측정된 반사손실 대역폭은 220 MHz로 비교적 양호한 특성을 나타냈으며 방사패턴은 준 등방성 패턴, 중심주파수에서 이득은 약 -1 dBi 로 이러한 결과는 시뮬레이션 데이터와 매우 유사하다. 본 연구결과는 블루투스 시스템에 유용하게 사용될 수 있을 것이다.

• 복식문화연구
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• 제23권1호
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• pp.126-144
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• 2015

The object of this study is to develop textile designs and fashion products based on the cultural resource of Jeju Bangsatop, which means a stone tower preventing misfortune and driving out evil spirits. The field surveys of 32 Bangsatops located at 17 villages in Jeju were conducted. As a result, unlike stone towers located in other regions, Jeju Bangsatops made with basalt. In addition, wood and stone birds, Dolhareungbang, and other sculptures are built on the tops. Jeju Bangsatops were classified into four types based on the body form of the tops: Conical, truncated conical, trapezoid, and irregular shaped Bangsatops. Jeju Bangsatops located in a area or a village are symmetrically arranged in direction of south and north, left and right, east and west, or face to face. The conical, truncated conical, and irregular shaped Jeju Bangsatops which are designated as folk cultural properties or which have the unique sculptures of stone birds and the statues of Dolhareungbang built on the tops were selected as motifs for textile pattern design. The 4 basic patterns of Jeju Bangstops were designed. The six creative textile designs were developed by the various repeat arrangements of the basic patterns and were printed on oxford cotton fabrics by digital textile printing (DTP) method. The sixteen products of wallets, bags, hats and shoes were actually made with the DTP fabrics, the DTP fabrics which were naturally dyed in gray and blue colors, or the DTP fabrics which were redesigned with textile crayon. Therefore, it is confirmed that Jeju Bangsatop could be very useful as a motif for the development of cultural products focusing on Jeju tourism souvenir market.

• 한국정보통신학회논문지
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• 제23권12호
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• pp.1659-1665
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• 2019

본 논문에서는 WLAN (wireless local area network) 응용을 위한 소형 인쇄형 모노폴 안테나의 새로운 설계에 대해 연구했다. 선폭이 다른 패치와 계단 모양의 접지면이 있는 복사체는 안테나 크기를 줄이기 위해 사용된다. 안테나의 크기는 16 × 17 × 1 ㎣이며 포토리소그래피(photolithography) 기술로 제작되었다. 시뮬레이션 및 측정 결과가 잘 일치한다. 연구된 안테나의 공진 주파수는 약 5.2 GHz이며 측정 결과 1 GHz의 임피던스 대역폭을 가진다. 또한 측정된 방사패턴을 제시하고 필요한 WLAN 5 GHz 주파수 대역 (5.15 - 5.825 GHz)에서 측정된 이득 및 효율을 제시했으며, 5 GHz 대역 WLAN 안테나로 사용할 수 있음을 확인했다. 연구된 안테나는 소형, 경량, 저비용, 전방향성 복사패턴, 고이득 및 고효율을 갖는다.

• 한국의류학회지
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• 제46권4호
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• pp.657-671
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• 2022

This study aims to develop three dimensional (3D) yoga knee protectors that provide excellent wearing comfort. Three types of pads were modeled using 3D human data: two types of 3.0-cm-wide pads separated into top and bottom with thicknesses of 0.1 cm (TPU-1: A) and 0.2 cm (TPU-2: B); and one type with three 0.2-cm-thick separated panels (TPU-S: C). Based on these models, five knee protectors were developed using 3D patterning and 3D printing. Types A, B, and C were integrated with 0.6-cm neoprene pads. Type D was fabricated with a donut-shaped 0.6-cm neoprene pad inserted, while Type E consisted of two discrete 0.6-cm neoprene pads embedded in the protector's upper and lower sides. Wearing comfort was evaluated in terms of fit, pressure, and cushioning while in a standing and kneeling position and while in motion. The findings suggest that the fabricated knee protectors were evaluated as comfortable to the individuals with knee pain, rather than those without knee pain. The individuals with knee pain preferred the soft pads made of neoprene positioned around the knee (NEO-S: E), while those without knee pain favored the cushioned pads with a pattern structure maintained by thin 3D-printed pads (TPU-1: A).

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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• pp.91.2-91.2
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• 2010

The use of plated front contact for metallization of silicon solar cell may alternative technologies as a screen printed and silver paste contact. This technologies should allow the formation of contact with low contact resistivity a high line conductivity and also reduction of shading losses. The better performance of Ni/Cu contacts is attributed to the reduced series resistance due to better contact conductivity of Ni with Si and subsequent electroplating of Cu on Ni. The ability to pattern narrower grid lines for reduced light shading combined with the lower resistance of a metal silicide contact and improved conductivity of plated deposit. This improves the FF as the series resistance is deduced. This is very much required in the case of low concentrator solar cells in which the series resistance is one of the important and dominant parameter that affect the cell performance. A selective emitter structure with highly dopes regions underneath the metal contacts, is widely known to be one of the most promising high-efficiency solution in solar cell processing. This paper using selective emitter structure technique, fabricated Ni/Cu plating metallization cell with a cell efficiency of 17.19%.

• 한국세라믹학회지
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• 제52권4호
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• pp.264-268
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• 2015

Cu films were plated in an eco-friendly electroless bath (No-Formaldehyde) on Ni/screen printed Ag pattern/PET substrate. For electroless Cu plating, we used sodium-phosphinate ($NaH_2PO_2{\cdot}H_2O$) as reducing agent instead of Formaldehyde. All processes were carried out in electroless solution of pH 7 to minimize damage to the PET substrate. According to the increase of sodium-phosphinate, the deposition rate, the granule size, and rms roughness of the electroless Cu film increased and the Ni content also increased. The electroless Cu films plated using 0.280 M and 0.575 M solutions of sodium-phosphinate were made with Cu of 94 at.% and 82 at.%, respectively, with Ni and a small amount P. All electroless Cu plated films had typical FCC crystal structures, although the amount of co-deposited Ni changed according to the variation of the sodium-phosphinate contents. From these results, we concluded that a formation of higher purity Cu film without surface damage to the PET is possible by use of sodium-phosphinate at pH 7.

• 대한가정학회지
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• 제47권3호
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• pp.1-9
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• 2009

This study was conducted to examine how patchwork was expressed in fashion based on theoretical background on its brief history and expression styles and to show its possibility of creating ways for new expression in modern fashion. This study reviewed literatures on definition, history and styles of patchwork and investigated mainly works, which had been presented in collections home and abroad since 2000, to analyze its expressive characteristics shown in modern fashion. According to analysis on the expression of patchwork, it used various painting techniques such as patterns, colors and surface effect. It included patchwork having patterns provoking elusion of fairy tails; containing painting expression of reproducing works of artists; using colors boldly and contrasting strong primary colors directly to establish purity of painting and to pursuit characteristic expression; and using expression techniques of pure art such as gradation and cutting. Second, it used a compromise expression in materials, methods and substances. Patchwork which had used cloth without a pattern or printed fabric, utilized various materials like vinyl, paper, leather, metal and plastic and had a figurative value showing a solid expression as an objet itself with new techniques and changes of connecting methods. Thirdly, it used tradition patchwork techniques. Pieced patchwork, crazy patchwork and images of traditional odd ends of cloth covering a meal were applied to a whole area or a part of cloth to avoid monotony of design and to use it as a decoration.