• 제목/요약/키워드: dynamic of reason

검색결과 412건 처리시간 0.026초

Study on the Fabric Drape Behaviour with Image Analysis - Measurement, Characterisation and Instability -

  • Jeong, Y.J.;Phillips, D.G.
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 1998년도 가을 학술발표회논문집
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    • pp.290-294
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    • 1998
  • Colour tone, lustre, surface roughness of fabrics are very important factors in pursue of the beauty of external appearance, namely aesthetic appearance, and the dynamic functionality of fabric used to clothe the human body. Drape is one of many factors that influence the aesthetic appearance of fabric and has an outstanding effect on the formal beauty of fabric. For this reason, the measurement and understanding of drape is required to specify the performance of fabric used in clothing. (omitted)

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단층래티스돔의 자유진동해석 (Free-vibration Analysis of Single-Layer Latticed Domes)

  • 박정우;정환목;권영환
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1994년도 봄 학술발표회 논문집
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    • pp.89-94
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    • 1994
  • Latticed domes take form a curved surface by arranged members with certain patterns. For this reason, it is possible for the characteristics of vibration to complicate by change of various parameters of dome; grid-pattern, boundary condition and ratio of radius-height etc. Therefore, it is important to clarify the effect by these parameters before generalized dynamic response analysis. So this study deals with free vibration analysis of latticed domes and makes clear an effect of shape coefficient, that is, geometrical characteristics of latticed domes, on the vibration characteristics.

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Restoring Degradation of Hazy Image in HSI Color Space

  • Bui, Minh-Trung;Kim, Won-Ha
    • 한국방송∙미디어공학회:학술대회논문집
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    • 한국방송공학회 2012년도 추계학술대회
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    • pp.5-8
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    • 2012
  • Haze is an extreme reason of the reduction of contrast when capturing image in the outdoor. Recently, there are several single image dehazing techniques, but they are not robust in dynamic variations of natural environment caused by the thickness, coverage of haze and appearance of sunlight. In this paper, we propose an effective and robust method to restore degradation of hazy image. Compare with conventional methods, our proposal have better performance and computation time.

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Luminance enhancement in single image dehazing

  • ;김원하
    • 한국방송∙미디어공학회:학술대회논문집
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    • 한국방송공학회 2013년도 하계학술대회
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    • pp.322-324
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    • 2013
  • Haze is an extreme reason of the reduction of contrast when capturing image in the outdoor. Recently, there are several single image dehazing techniques, but they are not robust in dynamic variations of natural environment caused by the thickness, coverage of haze and appearance of sunlight. In this paper, we propose an effective and robust method to enhance luminance for image dehazing depending on histogram analysis. Compare with conventional methods, our proposal have better performance in term of contrast, and computation time.

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Histogram-based luminance enhancement for image dehazing

  • Bui, Minh-Trung;Kim, Won-Ha
    • 한국방송∙미디어공학회:학술대회논문집
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    • 한국방송공학회 2012년도 하계학술대회
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    • pp.16-18
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    • 2012
  • Haze is an extreme reason of the reduction of contrast when capturing image in the outdoor. Recently, there are several single image dehazing techniques, but they are not robust in dynamic variations of natural environment caused by the thickness, coverage of haze and appearance of sunlight. In this paper, we propose an effective and robust method to enhance luminance for image dehazing depending on histogram analysis. Compare with conventional methods, our proposal have better performance in term of contrast, and computation time.

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Design and Implement Ubiquitous System on Chip for IEEE 802.15.4 WPAN Standard

  • Doo, Kyoung;Kim, Young-Sam;Kim, Sun-Kuk;Lee, Kang-Whan
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2008년도 하계종합학술대회
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    • pp.697-698
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    • 2008
  • Ubiquitous Computing System is available anytime, anywhere communications and computing systems, and information sharing and mutual cooperation between computing systems. in addition, For Ubiquitous Computing System, it is need the sensor technology to detect information of users and surrounding environment. For these reason, this paper proposed CRS(Context Recognition Switch) and DOS(Dynamic and Optimal Standard) based Context-awareness system architecture.

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Emotion-Based Control

  • Ko, Sung-Bum;Lim, Gi-Young
    • 한국감성과학회:학술대회논문집
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    • 한국감성과학회 2000년도 춘계 학술대회 및 국제 감성공학 심포지움 논문집 Proceeding of the 2000 Spring Conference of KOSES and International Sensibility Ergonomics Symposium
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    • pp.306-311
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    • 2000
  • We, Human beings, use both powers of reason and emotion simultaneously, which surely help us to obtain flexible adaptability against the dynamic environment. We assert that this principle can be applied into the general system. That is, it would be possible to improve the adaptability by covering a digital oriented information processing system with analog oriented emotion layer. In this paper, we proposed a vertical slicing model with an emotion layer in it. And we showed that the emotion-based control allows us to improve the adaptability of a system at least under some conditions.

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비대칭성개념(非對稱性槪念)을 고려한 단상전원용유도전동기(單相電源用誘導電動機)의 특성해석(特性解析)에 관한 연구(硏究) (A Study on the Performance Analysis of Single-Phase Induction Motor Considering Asymmetrical Concept)

  • 이일천;김철우;황영문
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1989년도 추계학술대회 논문집 학회본부
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    • pp.5-9
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    • 1989
  • In this paper, while 2-or 3-phase induction motor is driven with balance and no noise driving at dynamic and steady state condition. Single-phase induction motor is driven with pulsating torque except specific driving point. So we analyze the reason of producing pulsating torque with the view of unsymmetring concept. These results are applied to the design of high efficincy, high quality single-phase induction motor.

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동영상의 고해상도 확대에 관한 연구 (A Study on High Resolution Image Sequence Interpolation)

  • 백종호;백준기
    • 한국방송∙미디어공학회:학술대회논문집
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    • 한국방송공학회 1995년도 학술대회
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    • pp.91-96
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    • 1995
  • In this paper we propose algorithms for high resolution image sequence interpolation. Image sequences, in general, are assumed to have greater amount of information than a still image. By this reason, image sequences can be used to improve the resolution of interpolated image sequences. Therefore the proposed algorithms can be the theoretical basis for interpolating dynamic image sequences. In order to demonstrate the validity of the proposed algorithms, experimental results using both synthetic and real test images are presented.

Effects of Formaldehyde to Urea Mole Ratio on Thermomechanical Curing of Urea-Formaldehyde Resin Adhesives

  • Park, Byung-Dae;Kim, Jae-Woo
    • Journal of the Korean Wood Science and Technology
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    • 제35권5호
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    • pp.76-86
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    • 2007
  • This study was conducted to investigate the effects of formaldehyde to urea (F/U) mole ratio on thermomechanical curing of UF resin adhesives with different F/U mole ratios. Thermomechanical curing of these UF resin adhesives was characterized using parameters of dynamic mechanical analysis (DMA) such as the gel temperature, maximum storage modulus, and peak temperatures of storage and loss modulus. As the F/U mole ratio decreased, the gel temperature of UF resin adhesives increased. The maximum storage modulus as an indicator of the rigidity of UF resin adhesives decreased with decreasing F/U mole ratio. The peak temperature of tan $\delta$ increased with decreasing F/U mole ratio, indicating that the vitrification occurred faster for high F/U mole ratio of UF resin adhesives than for the one of lower F/U mole ratio. These results partially explained the reason why UF resin adhesives with lower F/U mole ratio resulted in relatively poor adhesion performance when they were applied.