• 한국염색가공학회지
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• 제26권2호
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• pp.131-142
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• 2014

This paper was focused on investigating synthetic fabrics treated with persimmon juice by padding mangle repeatedly. The merit of dyeing by pad-dry method was easier color reproduction than dyeing by immersion method. With increasing number of padding, the dyed nylon fabrics showed deeper yellow-red colors, but dyed polyester fabrics had no uniform tendency. The dyed synthetic fabrics had a 3rd grade of ligtht, 4~5th grade of perspiration fastness, 5th grade of stain washing fastness, and 3~5th grade of rubbing fastness. As the number of padding and exposed time to sunlight or UV light increase, the value of K/S and ${\Delta}E$ increased and the colors become much deeper gradually. The color development had completed about 70 hours exposure to UV light. As the padding time of dyeing with persimmon juice increased, stiffness and water repellent property were enhanced, respectively. Also, the dyed synthetic fabrics had good antibacterial activity and deodorization.

• 한국염색가공학회지
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• 제25권4호
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• pp.292-302
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• 2013

Cotton fabrics treated with hybrid materials were developed and prepared. A halogen-free flame retardant and an aromatic amide were blended and applied to cotton fabrics. Thermal and physical properties of the treated cotton fabrics were investigated. The surface of the pure and coated cotton fabrics was characterized by Fourier transform infrared spectroscopy. The elemental composition of the coated surface of the cotton fabric was measured using X-ray photoelectron spectroscopy and compared with that of pure cotton fabric. After being solved in N,N-dimethylacetamide, m-aramid and triphenylphosphine oxide (TPP) were applied to cotton fabrics through a dip-pad-coagulation process. The treated cotton fabrics with recycled m-aramid/TPP resulted in increased limited oxygen index values and thermal resistance.

• 한국의류학회지
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• 제33권3호
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• pp.379-390
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• 2009

This Study is a research on symbolic meaning and artist's will of Vivienne Westwood's works which provide a new vision on woman's body and clothes. For the literary research, this study investigates theories of human's body which are phenomenal body of Merleau-Ponty's, the relations between power and body of M. Foucault's, cultural and social body of E. Goffman's and habitus of p, Bourdieu's. For the case research, Vivienne Westwood's collections are classified into each item which exaggerating and distorting woman's body such as Mini-Crini, corset, bustle cushion, bum-pad, farthingale and tailoring suits. Also she puts man's clothes item such as codpiece into woman's body. Through all of these design, she wants to reinterpret the woman's body and self-identity. Vivienne Westwood dose not leave the past just as a historic trace but recreates with her way of creation. Westwood has presented the satire which leads the parody of past in her unique ways of thinking and interpretation which mix the ideology of the past and the presents. Those make her look back the history and culture and express her esteem for self-identity of woman. Vivienne Westwood's works express woman's power and freedom in modem society.

• 항공우주기술
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• 제3권1호
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• pp.222-231
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• 2004

우주센터의 발사관제시스템은 우주센터 내에서 이루어지는 발사체에 대한 각종 지상시험과 발사시험시 발사체, 발사대, 추진지상공급계 등 외부 시스템과의 인터페이스를 통한 데이터 모니터링 및 제어를 수행하게 되며 실시간 원격제어 시스템, 시뮬레이션 시스템, 데이터 서버, 외부 네트워크 등으로 이루어져 있다. 발사체 시뮬레이션 시스템 개발의 목적은 발사체를 모사하여 지상 발사관제시스템 구축시 성능시험 및 검증을 수행하는 것이다. 본 논문에서는 시뮬레이터 시스템의 개요, 주요 장비에 대한 개념설계 및 실시간 데이터 처리에 대한 시험평가를 다루었다.

• 복식문화연구
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• 제8권1호
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• pp.123-132
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• 2000

When adding shoulder pads to clothing, the shoulder pads brings down the quality of armpit area and the width of shoulder area, 1.5㎝ thick non-woven shoulder pads are good for sensory evaluation but do not function as well. Therefore this study has done to come up with a solution to satisfy both sensory evaluation and functionality. The study did was by using laboratory blouses with three different types of shoulder pads, which were two different armpit depths (1.0㎝, 2.0㎝), 3 types of armpit widths (0.5㎝, 1.0㎝, 1.5㎝). The Result are as followed : 1. The sensory evaluation was affected the most by the armpit depths and shoulder lengths. 2. There were two results for the best sensory evaluation, they were the one with a pad of armpit depth of 1.0㎝, armpit width of 1.5㎝, and shoulder width of 1.5㎝. 3. The functionality was affected in an order of movement, armpit width, and shoulder width. 4. The two results for the best functionality were the one with shoulder pads of armpit depth of 1.0㎝, armpit width of 1.5㎝, and shoulder width of 1.5㎝, and the one with armpit depth of 1.0㎝, armpit width 1.5㎝, and shoulder width of 1.5㎝. 5. In conclusion, 1.2㎝ nonwoven shoulder pads on a blouse with a pattern of armpit depth of 1.0㎝, armpit width of 1.5㎝, and shoulder width of 0.5㎝ will satisfy both sensory evaluation and functionality at the same time.

• 한국식품과학회지
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• 제21권2호
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• pp.258-261
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• 1989

골판지 상자의 압축강도에 미치는 영향을 수치상으로 표현하기 위해서 윤곽재 삽입정도, 손잡이 위치, Slitting정도, 연결부 연결 재료, 인쇄 정도가 압축강도에 미치는 영향을 조사한 것은 다음과 같다. 윤곽재 삽입정도에 따라 압축강도는 9.0에서 48.5%까지 향상되었고, 손잡이 구멍위치에 따라 1.6%에서 10.1%까지 강도 차이가 있었으며, Slitting정도에 따라 3%에서 16%까지 향상되었고, 측면 연결을 아교를 쓸 경우 7%에서 10.3%까지 강도가 높았고 인쇄 면적이 커짐에 따라 18.1%에서 19.1%까지 낮아졌다.

• 제어로봇시스템학회논문지
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• 제14권6호
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• pp.543-547
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• 2008

In the paper, we develop the ultrasonic bonding technique for LCD driver chips having small size and high pin-density. In general, the mounting technology for LCD driver ICs is a thermo-compression method utilizing the ACF (An-isotropic Conductive Film). The major drawback of the conventional approach is the long process time. It will be shown that the conventional ACF method based on thermo-compression can be remarkably enhanced by employing the ultrasonic bonding technique in terms of bonding time. The proposed approach is to apply the ultrasonic energy together with the thermo-compression methodology for the ACF bonding process. To this end, we design a bonding head that enables pre-heating, pressure and ultrasonic excitation. Through the bonding experiments mainly with LCD driver ICs, we present the procedures to select the best combination of process parameters with analysis. We investigate the effects of bonding pressure, bonding time, pre-heating temperature before bonding, and the power level of ultrasonic energy. The addition of ultrasonic excitation to the thermo-compression method reduces the pre-heating temperature and the bonding process time while keeping the quality bonding between the LCD pad and the driver IC. The proposed concept will be verified and demonstrated with experimental results.

• 한국인터넷방송통신학회논문지
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• 제13권5호
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• pp.155-161
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• 2013

증강현실 기술은 가상의 정보와 현실의 배경을 혼합하여 사용자에게 제공하는 기술로, 현재 많은 분야에서 이 기술을 접목하여 다양한 연구를 진행하고 있다. 그 중 하나인 건설 산업은 복잡한 설계와 시설물을 기반으로 모든 업무가 행해지는 특징으로 인해 증강현실 기술의 활용 가능성이 높은 분야로 주목받고 있다. 또한 증강현실 기술은 현재 많은 사람들이 사용하고 있는 스마트폰에 구현되어 쉽고 빠르게 이용할 수 있게 되었다. 이에 본 논문에서는 콘크리트 교량의 유지 및 관리를 위해 증강현실 기반의 모바일 어플리케이션을 제안한다. 내/외적인 정보들을 제공하는 증강현실 기반 교량 정보 시스템을 제안한다. 본 논문에서 구현한 교량 정보 어플리케이션은 스마트폰과 증강현실 기술을 이용하여 교량의 다양한 정보를 제공할 수 있다.

• 전자공학회논문지A
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• 제31A권6호
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• pp.88-97
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• 1994

We describe the design, fabrication, and performance of the optical fiber-photodiode 1$\times$12 arry module using mesa-type InS10.53T GaS10.47TAS/INP 1$\times$12 PIN photodiode array. We fabricated the PIN PD array for high-speed optical fiber parallel data link optimizing quantum efficiency, operating speed sensitivity from the PIN-FET structure, and electrical AC crosstalk. For each element of the array, the diameter of the photodetective area is 80 $\mu$m, the diameter of the p-metal pad is 90 $\mu$m, and the photodiode seperation is 250 $\mu$m to use Si v-groove. Ground conductor line is placed around diodes and p-metal pads are formed in zigzag to reduce Ac capacitance coupling between array elements. The dark current (IS1dT) is I nA and the capacitance(CS1pDT) is 0.9 pF at -5 V. No signifcant variations of IS1dT and CPD from element to element in the array were observed. We calulated the coupling efficiency for 10/125 SMF and 50/125 GI MMF, and measured the responsivity of the PD array at the wavelength is 1.55 $\mu$ m. Responsivities are 0.93 A/W for SMF and 0.96 A/W for MMF. The optical fiber-PD array module is useful in numerous high speed digital and analog photonic system applications.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 추계학술대회
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• pp.560-563
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• 2015

기존에 사용되어지는 도어락 시스템은 키 또는 카드, 패드를 이용하는 방식으로 복제, 분실, 훼손 등의 위험과, 타인에게 노출되는 문제점을 가지고 있다. 본 논문에서는 기존의 도어락 시스템 문제점을 보완하고자 스마트폰에 내장된 Bluetooth통신과 OTP(One-Time-Password), Hide-Key 인증방식 및 Arduino를 활용한 스마트폰 기반의 무선 OTP 도어락 시스템 설계 및 구현함으로써 사용자들은 보안 및 노출의 위험성에서 벗어나 보다 편리하고 안전한 생활을 가능하게 한다.