• 제목/요약/키워드: Minimum Quantity

검색결과 251건 처리시간 0.029초

분산환경을 위한 Sample Distributed Virtual Machine 설계 및 구현 (A Design and Implementation of Sample Distributed Virtual Machine for Distributed Environment)

  • 양일등;이석희;김성열
    • 정보처리학회논문지A
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    • 제11A권4호
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    • pp.251-256
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    • 2004
  • 고성능 컴퓨터들의 대량 보급으로 인해 다양한 종류의 분산 자원이 주위에 산재해 있다. 이러한 분산 자원을 이용하는데 각 분야별 시스템들의 개념, 모듈, 운영 및 관리를 배제하고 사용할 수 있다면 최소한의 비용으로 분산 자원을 사용할 수 있을 젓이다. 이에 '분산환경에 적용될수 있는 DVM 및 DESPL의 제안'을 통해 제안된 내용중 그 일부를 수용하여 SDVM을 설계 및 구현한다. SDVM을 이용하는 사용자는 분산 환경의 개념없이 최소한의 비용으로 분산된 자원을 사용할 수 있다.

지역별 직접부하제어 잠재량을 고려한 부하차단 확보량 결정에 관한 연구 (A Study on the Determination of Minimum Local Load Shedding Considering the Regional DLC Potentials)

  • 심건보;김정훈;황성욱;이창호;조인승
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 A
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    • pp.407-409
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    • 2002
  • This paper proposes a process using the load shedding scenario method that determines the minimum local load shedding quantity considering the local DLC(Direct Load Control) potentials. So this method is applied to Kyung-In area and determined the load shedding of this area with comparison to its DLC potentials.

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야드형 AGV-서스펜션 파라미터의 최적화를 위한 충격하중 해석 (Analysis of Impact Load for Optimum of Suspension Parameter of Yard AGV)

  • 홍도관;김재헌;안찬우;전언찬;김중완
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2002년도 추계공동학술대회논문집
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    • pp.161-167
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    • 2002
  • Cai-go management facility of harbor are required an expansion due to increase of cargo quantity. Design technology of Yard AGV call be possible to deal many cargo rapidly and accurately. So it is produced a profit about cal-go management. This study is presented optimum of suspension parameter for design technology Yard AGV. Model I, II are modeled about Initial of container weight, height. When the maximum stroke of suspension is 0.26m, optimum is achieved to reduce the reaction force at the minimum. Also, the reaction force is study to become stability in I second. A change of spring constant and coefficient of damper make change the reaction force and minimum reaction force appear in optimum value. All modeling and analysis are used combination. contact element of Ansys program.

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Risk Analysis of Explosion in Building by Fuel Gas

  • Jo, Young-Do;Park, Kyo-Shik;Ko, Jae Wook
    • Corrosion Science and Technology
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    • 제3권6호
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    • pp.257-261
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    • 2004
  • Leaking of fuel gas in a building creates flammable atmosphere and gives rise to explosion. Observations from accidents suggest that some explosions are caused by quantity of gas significantly less than the lower explosion limit amount required to fill the whole confined space, which might be attributed to inhomogeneous mixing of the leaked gas. The minimum amount of leaked gas for explosion is highly dependent on the degree of mixing in the building. This paper proposes a method for estimating minimum amount of flammable gas for explosion assuming Gaussian distribution of flammable gas.

Camera Motion Parameter Estimation Technique using 2D Homography and LM Method based on Invariant Features

  • Cha, Jeong-Hee
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제5권4호
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    • pp.297-301
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    • 2005
  • In this paper, we propose a method to estimate camera motion parameter based on invariant point features. Typically, feature information of image has drawbacks, it is variable to camera viewpoint, and therefore information quantity increases after time. The LM(Levenberg-Marquardt) method using nonlinear minimum square evaluation for camera extrinsic parameter estimation also has a weak point, which has different iteration number for approaching the minimal point according to the initial values and convergence time increases if the process run into a local minimum. In order to complement these shortfalls, we, first propose constructing feature models using invariant vector of geometry. Secondly, we propose a two-stage calculation method to improve accuracy and convergence by using homography and LM method. In the experiment, we compare and analyze the proposed method with existing method to demonstrate the superiority of the proposed algorithms.

분말공급장치를 이용한 VERSAlloy의 S20C강 $CO_2$ 레이저 클래딩 ($CO_2$ Laser Cladding of VERSAlloy on the S20C with Powder Feeding)

  • 김재도;권진욱
    • 대한용접접합학회:학술대회논문집
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    • 대한용접접합학회 2001년도 추계학술발표대회 개요집
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    • pp.128-131
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    • 2001
  • Laser cladding processing allows rapid transfer of heat to the material being processed with minimum conduction into base metal, resulting in low total heat input. The effects of $CO_2$ laser cladding with powder feeding on mechanical properties of VERSAlloy were studied. Their low melting point (under 1093$^{\circ}C$) enables overlays to be applied with minimum dilution and base metal distortion. Experiment results indicated that powder feeding speed and quantity were important for laser cladding with powder feeding. The powder feeding speed should be adapted according to cladding speed for good shaping of clad layer. The effect of heat on the HAZ size can be limited and the growth of grain size of HAZ size was not serious.

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주문 생산형 특수가스 제조업을 위한 카드식 생산관리체계 설계 (Design of Card-Type Production Planning and Management System for Special Gas Manufacturers)

  • 김내헌;장중순;임석철
    • 산업경영시스템학회지
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    • 제16권28호
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    • pp.9-19
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    • 1993
  • We present a production planning and control system suitable for small to medium sized, order-based companies producing special gases of small-quantity. The proposed system uses cards each of which represents individual unit of order. The components and procedure of the system are described in detail. The proposed system is easy to implement because it visualizes the amount and distribution of the received orders; and requires minimum aid of computer.

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