• 제목/요약/키워드: look

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성능개선을 위한 룩업테이블 하이브리드 퍼지제어 시스템 (Hybrid Fuzzy Control Systems with Look-Up Table for Good Performance)

  • 이평기
    • 한국산업융합학회 논문집
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    • 제19권3호
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    • pp.101-108
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    • 2016
  • I propose a hybrid fuzzy controller with a look-up table to improve the performance of the FARMA(Fuzzy Auto-regressive Moving Average) fuzzy controller. The hybrid structure of the proposed method is composed of a fuzzy controller with a look-up table of the PD type and the FARMA fuzzy controller. The proposed method improves poor performance due to the lack of I/O data to calculate predictive output and shows robust performance over the FARMA fuzzy controller when a incorrect Dmax value is selected by trial and error. I executed some computer simulations on the regulation problem of an inverted pendulum system and compared the results with those of the FARMA fuzzy controller.

패션에 나타난 퓨전 이미지에 관한 연구 - Retro를 중심으로 - (A Study on Fusion Image in Fashion - Focused on Retro -)

  • 김후란;은영자
    • 복식문화연구
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    • 제11권2호
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    • pp.293-319
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    • 2003
  • Retro, one of these fusion styles, was found in various pattern in fashion. Recent fashion trend shows coexistence with variety which cannot be represent by one or two themes, and introduces various images in a season. Therefore, this study was found three fusion image of Retro pattern which has appeared since 1990; Romantic, Ethnic, and Hippie-look. shown in VOGUE, BAZZAR and etc. 1, Romantic image overcame the exaggerated style of 18th century and expressed in a volume gown, a tight dress of high-waist, and bustier. In addition, beads or sequin became more brilliant and gorgeous which decorated the whole clothing. 2. Ethnic image was expressed with fusion of particular traits from all of the world such as Japan, China, India, South America, Greece, and Africa. 3. Hippie-look image has been shown in slim & long silhouette style, and fusion styles of romantic factors or ethnic factors were also found. Retro as one of the phenomenon of fusion was found in romantic image, ethnic image and hippie-look Image.

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현대 패션에 나타난 신체장식 표현의 미적 가치에 관한 연구 (A Study on the Aesthetic Value Featured in the Body Decoration in Contemporary Fashion)

  • 이정혜;김순자
    • 복식문화연구
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    • 제12권5호
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    • pp.721-736
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    • 2004
  • The aim of this study is to clarify aesthetic values and sociocultural meanings that reappears in contemporary fashion. In order to analyze aesthetic values and symbolic meanings of body decoration, I examined the concepts and expression methods of the body decoration. Also, analyzed external characteristics of expression and its internal meanings that applied in modern fashion. The expressions of body decoration represented in contemporary fashion are classified into direct and indirect methods. The direct method is expressed by tattoos, piercing, henna, make-up and body painting. And, indirect method is expressed by see-through look, body-conscious look and accessories that were utilized its patterns and the material adaptation methods. Such expression of body decoration in the modern fashion was represented into grotesque images and erotic images. The characteristics of grotesque images are abnormal state, hateful animal image and distorted or transformed body and the internal meanings are the pursuit of primitive, exoticism, the pursuit of playfulness, and resistance. The characteristics of erotic images are an exposure of body, see through, body-conscious and androgynous look and the internal meanings are the self-intoxication, naturalism and sexual pleasure.

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2nd Look VE를 이용한 오토바이 헬멧 개발에 관한 연구 (Development of New Helmet using 2nd Look VE)

  • 김광수
    • 대한안전경영과학회지
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    • 제8권1호
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    • pp.145-164
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    • 2006
  • Value Engineering(VE) has been recognized by many companies as a powerful and innovative technical approach for cost down and improvement in function of product and service. VE is a discipline which use an organized, creative approach to achieve the required function at the lowest cost. For the Purpose of developing new product, at this paper used the method of 2nd look VE developing bike helmet, in the order of selecting target, function analysis and writing alternative. The development of Helmet by the process of VE job plan, achieve the cost reduction of 27 million won for developing new product with customer's need.

성능평가에 의한 퍼지제어시스템 동조 (Fuzzy control system tuning by performance evaluation)

  • 정헌;정창규;고낙용;김영동;최한수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1995년도 하계학술대회 논문집 B
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    • pp.682-684
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    • 1995
  • The most effective way to improve the performance of a fuzzy controller may be to optimize look-up values. Look-up values are derived from processes used input-output scale factors, membership functions, rule base, fuzzy inference method and defuzzification. It is powerful way to modify or organize look-up table values. In this paper, We propose the look-up values self-organizing fuzzy controller(LSOFC). We use the plus-minus tuning method(PMTM), scanning values through the processes of addition and subtraction. We show the efficiency of this LSOFC by the results of simulation for nonlinear time-varying plant with unmodelled dynamics.

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전력증폭기의 비선형 특성과 Memory Effect를 보상하기 위한 Look-up Table 방식의 Digital Pre-distorter (Look-up Table type Digital Pre-distorter for Linearization Power Amplifier with Non-linearity and Memory Effect)

  • 최홍민;김왕래;유재우;안광은
    • 한국정보통신설비학회:학술대회논문집
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    • 한국정보통신설비학회 2008년도 정보통신설비 학술대회
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    • pp.218-222
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    • 2008
  • RF power amplifier requires linearization in order to reduce adjacent channel interference. And most of the existing linearization algorithms assume that a PA has memory-less nonlinearity. But for the wider bandwidth signal, the memory effect of PA cannot be ignored. This paper investigates digital pre-distortion by use of a memory polynomial model which compensates for amplifier nonlinearity and memory effect. The look-up table based implementation scheme is used to reduce the computational complexity of the pre-distortion block. The linearization performance is demonstrated on wideband CDMA signal and class AB high power amplifier.

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Optical Look-ahead Carry Full-adder Using Dual-rail Coding

  • Gil Sang Keun
    • Journal of the Optical Society of Korea
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    • 제9권3호
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    • pp.111-118
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    • 2005
  • In this paper, a new optical parallel binary arithmetic processor (OPBAP) capable of computing arbitrary n-bit look-ahead carry full-addition is proposed and implemented. The conventional Boolean algebra is considered to implement OPBAP by using two schemes of optical logic processor. One is space-variant optical logic gate processor (SVOLGP), the other is shadow-casting optical logic array processor (SCOLAP). SVOLGP can process logical AND and OR operations different in space simultaneously by using free-space interconnection logic filters, while SCOLAP can perform any possible 16 Boolean logic function by using spatial instruction-control filter. A dual-rail encoding method is adopted because the complement of an input is needed in arithmetic process. Experiment on OPBAP for an 8-bit look-ahead carry full addition is performed. The experimental results have shown that the proposed OPBAP has a capability of optical look-ahead carry full-addition with high computing speed regardless of the data length.

조선시대 남자 배자를 응용한 레이어드 룩 스타일 디자인 연구 (A Study on The Layered Look by Applying Characteristics of Men's Baeja from The Joseon Dynasty)

  • 염순정;김은정
    • 대한가정학회지
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    • 제50권6호
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    • pp.55-64
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    • 2012
  • This study aims to reinterpret formative elements of Baeja, by applying them to the design of modern clothing. The main objective of the studying Baeja is to propose unique layered look items that can be readily put together for various weather conditions and occasions, be easily wearable and bring out unique individualities. After carefully studying Baeja from Joseon dynasty, flexible and practical layered-look items are designed. The following are the conclusions drawn from the work. First, it is possible to apply Baeja elements, such as the silhouette, traditional materials, and colors, to modern clothes, for a layered-look. Second, Baeja characteristics have a profound potential for a modern layered-look design, in that it is sleeveless, its length is long at the front and short at the back, and it comes with slits on both sides and a wide belt. The items inspired by such characteristic can easily be worn over and draped around daily clothes, according to weather conditions and occasions. Third, many decorative elements of Baeja, including detailed ornamental method, knots, patchworks, and string decorations create a unique and traditional image in modern clothes. Ribbonswhich can adjust the width of clothes are both practical and decorative. A reversible jacket is created by utilizing the same traditional sewing method for both inner and outer fabrics. One item can be worn in different styles, which increases practicality. Fourth, traditional and modern materials go well together. Such methods can create an item with both modern sensibility and traditional chic.

영상 스케일러의 저전력 VLSI 구조 설계 및 계수 최적화 (Low-power VLSI Architecture Design for Image Scaler and Coefficients Optimization)

  • 한재영;이성원
    • 대한전자공학회논문지SD
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    • 제47권6호
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    • pp.22-34
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    • 2010
  • 기존의 영상 스케일러(scaler)들은 연산량과 하드웨어 복잡도를 줄이기 위해 선형 보간과 같은 간단한 보간을 적용함으로써 화질을 희생시키거나, 고품질 영상을 얻기 위하여 복잡한 보간 기법을 적용함으로써 전력소모와 크기가 큰 하드웨어 구조를 적용하여 왔다. 그러나 영상기기들의 소형화와 고화질 영상에 대한 사용자들의 욕구 증대로 소형, 저전력이면서 결과 영상의 화질 또한 우수한 스케일러의 개발이 중요시되고 있다. 따라서 본 논문은 실시간, 고화질, 소형, 저전력의 목표를 모두 달성할 수 있는 래스터 스캔(raster scan) 방식의 스케일러 하드웨어 구조를 제안한다. 본 논문에서 제안하는 스케일러는 기존의 3차 보간(cubic interpolation) 기법과 룩업테이블(look-up table) 구조를 개선하여 저전력화와 소형화를 달성하였다. 제안하는 스케일러 구조의 특징은 기존의 실시간 스케일러가 포함하던 버퍼를 라인메모리로 대체하여 메모리 접근 횟수를 줄임으로써 저전력을 달성할 수 있도록 했다는 것이며, 또한 기존의 룩업테이블 구조에서 사용하던 3차 보간 수식을 재정리하여 곱셈기 수와 룩업테이블의 크기를 줄임으로써 하드웨어를 소형화하는 방법을 제안하였다. 마지막으로 사용되는 계수의 크기에 따른 결과를 분석하여 영상의 화질과 하드웨어 크기 간의 최적의 타협점을 제시하였다.

현대패션에 표현된 에콜로지에 관한 연구 (A Study on 'Eco-Look' expressed in contemporary fashion)

  • 정연자
    • 복식
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    • 제30권
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    • pp.227-237
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    • 1996
  • The purpose of this study is to investigate the main characteristics of the environmentalism expressed in contemporary fashion. i.e. 'eco-look'. They can be categorized into naturalism symbolism primitiveness and concern about recycling. First naturalistic tendency can be found in through the method of some contemporary eco-looks which are using natural colors harmonisation of the colors in similarity and in controst and expressing in a realistic manner some natural entities or use some ornaments representing them. Such trends easily let people to feel the clothes unified with the nature and human beings. Secondly some contemporary eco-looks express environmentalistic ideas for examples the idea for protection of the nature or the idea against pollution of the earth and destruction of nature in a symbolistic way. Thirdly primitiveness is one of the most characteristic feature in contemporary eco-looks. It can be found in contemporary eco-looks, In can be found in some eco-looks using primitive or original images of Africa and underdeveloped countries. it reflects the human desire to go back to the nature or to the unity with the nature, Finally recycled materials are commonly used in eco-look. Patchwork and handmade knits are popular methods for this mode. They implicates the idea of pragmatism and simplicity in fashion. One Conclusion of the paper on eco-look: fashion design which can be itself an import-ant environment of human beings Secondly some contemporary eco-looks ex-press environmentalistic ideas for examples the idea for protection of the nature or the idea against pollution of the earth and destruction of nature in a symbolistic way. Thirdly primitiveness is one of the most characteristic feature in contemporary eco-looks. It can be found in some eco-looks using primitive or original images of Africa and underdeveloped countries. it reflects the human desire to go back to the nature or to the unity with the nature. Finally recycled materials are commonly used In eco-look Patchwork and handmade knits are popular methods for this mode. They implicates the idea of pragmatism and simplicity in fashion. One Conclusion of the paper on eco-look ; fashion design which can be itself an import-ant environment of human beings has become a very efficient and significant tool to express the idea of ecology.

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