• 제목/요약/키워드: covers

검색결과 2,362건 처리시간 0.03초

서울월드컵경기장 지붕구조물 설계와 시공 (The Roof Canopy for Seoul World Cup Stadium)

  • 문석용;;김형영
    • 기술사
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    • 제34권5호
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    • pp.29-33
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    • 2001
  • This paper summarizes the design and construction of the roof canopy structure for the SEOUL 2002 World Cup Main Stadium with a design inspired by Korean traditional beauty emphasizing images of the Pangpae kite. The stadium has also been designed for maximization of its post-World Cup utility to be used on as every basis by the citizens. The stadium canopy is a unique spatial network of truss members with a tensile membrane roof suspended from 16 masts. The canopy covers 40,950 ㎡. which is clad with a pre-stressed tensile membrane of PTFE coated fiberglass fabric and the glass.

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강성회전체의 평형특성 요구조건 - 평형 오차 (Balance quality requirements of rigid rotors - Balance errors(ISO 1940-2))

  • 전오성;최상규
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2003년도 춘계학술대회논문집
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    • pp.463-467
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    • 2003
  • This part of ISO 1940 covers the following: a) identification of errors in the balancing process of rigid rotors: b) assessment of errors: c) guidelines for taking into account: d) the evaluation of residual unbalance in two correction planes. Detailed consideration of errors associated with the determination of residual unbalance is covered in the first part of ISO 1940.

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Regiospecific Ring-Opening of Unsymmetrical Epoxides to the Corresponding Less Substituted Alcohols by Newly-Devised Meerwein-Ponndorf-Verley Type Reagents

  • Cha, Jin Soon
    • 통합자연과학논문집
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    • 제5권2호
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    • pp.91-99
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    • 2012
  • A newly-devised Meerwein-Ponndorf-Verley (MPV) reagents, such as diisobutylacetoxyalanes and diisobutylmethanesulfonylalanes, achieved a clean conversion of unsymmetrical epoxides to the corresponding less substituted alcohols. This review covers the recent developments for such a regiospecific ring-opening reaction of epoxides.

RGB Motion Segmentation using Background Subtraction based on AMF

  • 김윤호
    • 한국정보전자통신기술학회논문지
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    • 제7권1호
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    • pp.61-67
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    • 2014
  • Motion segmentation is a fundamental technique for analysing image sequences of real scenes. A process of identifying moving objects from data is a typical task in many computer vision applications. In this paper, we propose motion segmentation that generally consists from background subtraction and foreground pixel segmentation. The Approximated Median Filter(AMF) was chosen to perform background modeling. Motion segmentation in this paper covers RGB video data.

Digital Customer and Display Design in Korea

  • Moon, Charn
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.305-306
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    • 2009
  • Korean digital product users' tends to be participationoriented. They hope that their expectations are reflected in the outcome. Furthermore, they look toward customizationoriented. They want product differentiation for only their own goods. They come to take a prudent and particular attitude. Korean display industry is under extending the share of the international market these days. This report covers the direction of the display industry design through analyzing the trend of the Korean digital product users'.

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서명자동검정을 위한 개인별 특징 세트 선택 (Customised feature set selection for automatic signature verification)

  • 배영래;조동욱;김지영
    • 한국통신학회논문지
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    • 제21권7호
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    • pp.1642-1653
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    • 1996
  • This paper covers feature extraction for automatic handwritten signature verification. Several major feature selection techniques are investigated from a practical perspective to realise an optimal signature verification system, and customised feature set selection based on set-on-set distance measurement is presented. The experimental results have proved the proposed methods to be efficient, offering considerably improved verification performance compared to conventional methods. Also, they dramatically reduce the processing complexity in the verification system.

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Analysis on the Change and Its Cause of Income Distribution before and after the Financial Crisis: Income Mobility Perspective

  • Yoo, Gyeongjoon
    • KDI Journal of Economic Policy
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    • 제26권1호
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    • pp.141-190
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    • 2004
  • Income inequality in Korea has increased after the economic crisis, and the main reason for the widening of income distribution is due to the increase of the unemployed when analyzed using the Urban Household Report(UHR). However, income inequality has not decreased although the rate of unemployment decreased after 2000. Further data bases for income-related statistics are necessary to examine the exact causes of changing income inequality as a whole since the UHR covers only statistics on urban employees' wage and salary in Korea.

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MINIMAL QUASI-F COVERS OF vX

  • Kim, ChangIl
    • 충청수학회지
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    • 제26권1호
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    • pp.221-229
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    • 2013
  • We show that if X is a space such that ${\beta}QF(X)=QF({\beta}X)$ and each stable $Z(X)^{\sharp}$-ultrafilter has the countable intersection property, then there is a homeomorphism $h_X:vQF(X){\rightarrow}QF(vX)$ with $r_X={\Phi}_{vX}{\circ}h_X$. Moreover, if ${\beta}QF(X)=QF({\beta}X)$ and $vE(X)=E(vX)$ or $v{\Lambda}(X)={\Lambda}(vX)$, then $vQF(X)=QF(vX)$.

Tris(2-methoxyphenyl)phosphine as a Highly Active Ligand for the Synthesis of Biaryls by Suzuki Coupling Reaction

  • Kang, Pill-Seong;Ko, Sung-Bo;Ko, Jang-Myoun;Park, Jeong-Ho
    • Bulletin of the Korean Chemical Society
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    • 제30권11호
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    • pp.2697-2700
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    • 2009
  • A $Pd(OAc)_2/(o-MeOPh)_3P$ system has been developed for the catalytic Suzuki coupling of aryl bromides with arylboronic acids. Our catalyst system covers a broad spectrum of commonly available arylboronic acids and aryl bromides to provide biaryls in very good yields. The catalyst system works very well in the synthesis of sterically hindered biaryls.

포항 연약점토의 공학적인 특성 (The Engineering Characteristics of Soft Clay In Pohang)

  • 고경환;김지성;류남열
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2001년도 지반환경 및 준설매립에관한 학술세미나
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    • pp.122-142
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    • 2001
  • Mudstone which is in po-hang area, made from bedrock under a tropical ocean environment, The mudstone has a tendency to be weathered and swelled when it is exposed to the atmosphere. In addition the clay material on the surface shows highly compressive property that causes a lot of engineers problem during embanking and cutting. This report covers alternative methods to solve those problems by understanding engineering characteristics of the site through precise filed investigations and predicting the problems during construction.

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