• 제목/요약/키워드: bundle

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원 위에서의 Nontrivial Complex Equivariant Vector Bundle (Nontrivial Complex Equivariant Vector Bundles over $S^1$)

  • 김성숙
    • 자연과학논문집
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    • 제10권1호
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    • pp.13-16
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    • 1998
  • 원 위에서의 모든 복소 vector bundle은 line bundle로 나누어지며 첫째 Chern class는 복소 line bundle을 분류한다. 이것은 원위에서의 모든 복소 vector bundle은 trivial 하다는 것을 의미한다. 이 논문에서는 군작용이 있을 경우에는 원위에서의 복소 vector bundle중에 trivial하지 않는 bundle이 존재함을 보였다.

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번들가격할인 프레이밍과 메시지 프레이밍이 소비자의 번들구성제품에 대한 평가에 미치는 영향 (The Effects of Bundle Price Discount Framing and Message Framing on Consumers' Evaluation of Bundle Component)

  • 박소진
    • Asia Marketing Journal
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    • 제13권3호
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    • pp.55-77
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    • 2011
  • 가격번들링(price bundling)의 형태에는 '믹스드리더번들(mixed-leader bundle)'과 '믹스드조인트번들(mixed-joint bundle)'이 있는데 전자는 패키지 구성요소 중 하나는 정상가에 판매하고 다른 하나는 할인된 가격에 판매하는 것(예를 들면, 치아미백제를 구매하면 치약 할인)이고, 후자는 패키지의 가격을 통합하여 하나의 할인된 가격(예를 들면, 치아미백제와 치약을 함께 구매하면 총금액 할인)으로 제시하는 것이다. 메시지 프레이밍이란 동일한 광고 메시지를 어떻게 표현하느냐 하는 것인데, 제품을 사용할 경우 얻게 될 혜택 또는 긍정적인 제품 속성을 강조하는 긍정적 프레이밍과 대안을 채택하지 않을 경우 입게 되는 손실 또는 부정적인 제품속성을 강조하는 부정적 프레이밍이 있다. 본 연구는 치아미백제의 메시지 프레이밍을 '95%가 미백효과를 보았다(긍정적 프레이밍)'와 '5% 미만이 미백효과를 보지 못했다(부정적 프레이밍)'로 제시하였다. 본 연구는 개별제품에 대한 소비자의 지각된 품질수준과 태도에 대한 번들가격할인 프레이밍과 메시지 프레이밍의 상호작용효과를 탐구하였다. 연구결과 메시지 프레이밍의 주효과와 상호작용효과가 유의하게 나타났다. 긍정적 메시지프레이밍 조건에서는 믹스드조인트번들보다 믹스드리더번들에서 치아미백제에 대한 지각된 품질 및 태도가 높았으나, 부정적 메시지 프레이밍 조건에서는 믹스드리더번들보다 믹스드조인트번들에서 더 높았다. 본 연구는 번들 내 개별제품에 대한 번들가격할인 프레이밍과 메시지 프레이밍의 상호작용효과를 발견했다는 점에서 연구의 의의가 있으며, 메시지 프레이밍의 형태에 따라 번들가격 제시방법을 달리해야함을 제안하고 있다.

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COMPARISON OF DRYOUT POWER DATA BETWEEN CANFLEX MK-V AND CANFLEX MK-IV BUNDLE STRINGS IN UNCREPT AND CREPT CHANNELS

  • JUN JI SU;LEUNG L.K.H.
    • Nuclear Engineering and Technology
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    • 제37권6호
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    • pp.565-574
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    • 2005
  • The CANFLEX Mk-V bundle is designed to improve upon the critical heat flux (CHF) characteristics of the CANFLEX Mk-IV bundle. The main difference between these two bundles is an increase in bearing pad height of about 0.3 mm in the CANFLEX Mk-IV bundle. This change in bearing pad height leads to an increase in gap flow at the bottom of the bundle, primarily eliminating the localized narrow-gap effect that limits the CHF of the CANFLEX Mk-IV bundle. The objective of this paper is to examine the effects of bearing pad height and pressure tube creep on the sheath-temperature distribution, dryout power, and dryout location, as observed ken full-scale bundle tests, between CANFLEX Mk-IV and Mk-V bundles In uncrept and crept channels. A comparison of surface-temperature differences between the top and bottom elements of the bundles showed that increasing the bearing pad height has led to a more homogeneous enthalpy distribution in subchannels of the bundle. Initial dryout locations of the CANFLEX Mk-V bundle were mainly observed at the mid-spacer plane of either the $10^{th}$ (about $80\%$) or $11^{th}$ ($20\%$) bundle in the 12-bundle string, as compared to the mid-spacer and downstream-button planes for the CANFLEX Mk-IV bundle. Dryout power and boiling-length-average (BLA) CHF values exhibit consistent trends and little scatter with varying flow conditions for both types of CANFLEX bundles in uncrept and crept channels. An increase in pressure tube creep has led to a reduction in dryout power (about $20\%$ far the $3.3\%$ crept channel and $27\%$ for the $5.1\%$ crept channel as compared to dryout powers for the uncrept channel). Increasing the bearing pad height of the CANFLEX bundle has led to an increase in the dryout power. Overall, the dryout power of the CANFLEX Mk-V bundle is 7 to $10\%$ higher than that of the CANFLEX Mk-IV bundle at the inlet temperature range of interest (i.e., between 243 and $290^{\circ}C$).

FUEL CHANNEL ANALYSIS FOR 35% RIH BREAK IN CANDU REACTOR LOADED WITH CANFLEX-RU FUEL BUNDLES

  • Oh, Dirk-Joo;Lee, Young-Ouk;Jeong, Chang-Joon;Lim, Hong-Sik;Suk, Ho-Chun
    • 한국원자력학회:학술대회논문집
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    • 한국원자력학회 1998년도 춘계학술발표회논문집(1)
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    • pp.719-724
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    • 1998
  • A preliminary fuel channel analysis for 35% reactor inlet header (RIH) break in CANDU reactor loaded with the CANFLEX-RU fuel bundles has been performed. The predicted results are compared with those for the reactor compared with those for the reactor loaded with standard 37-element bundles. The maximum fuel centerline and sheath temperatures for the CANFLEX-RU bundle channel were lower by 338 and 122 $^{\circ}C$, respectively, than those for the standard bundle because of the Bower maximum linear power of the CANFLEX-RU bundle In spite of the 0.4 FPS higher power pulse of the CANFLEX-RU bundle case. Fuel integrity margin to fuel breakup for the CANFLEX-RU bundle is about 50 J/g higher than that for the standard bundle. The PT/CT contact for the CANFLEX-RU bundle occurred 2 s later than that for the standard bundle. The PT/CT contact temperature for the CANFLEX-RU bundle was 2 $^{\circ}C$ lower than that for the standard bundle. These provide the CANFLEX-RU bundle with the negligibly enhanced safety margin for the fuel channel integrity in CANDU 6 reactor, compared with the standard bundle.

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FIPA-OS Framework Bundle Implementationover OSGi Service Platform

  • Lee, Hyung-Jik;Ryoo, Dong-Wan;Lee, Jeun-Woo
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2002년도 ICCAS
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    • pp.53.4-53
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    • 2002
  • In this paper, we implemented the FIPA-OS framework bundle and service agent bundle over the OSGi service platform in home-sewer platform. The FIPA-OS is the first open source implementation of the FIPA standards and is a component-based toolkit implemented in Java. The FIPA-OS bundle is composed of two bundles. One is the communication bundle such as RMI, IIOP, HTTP and ACC. Another is the agent loader bundle. Experiments are conducted on the service agent communication and loading by the agent loader bundle, and the proposed bundles are successfully installed, stopped, and uninstalled over the OSGi service platform.

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Study on the Effects of Single Fiber Tensile Properties on Bundle Tensile Properties through Estimation of HVI Bundle Modulus and Toughness

  • Koo, Hyun-Jin;Jeong, Sung Hoon;Suh, Moon W.
    • Fibers and Polymers
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    • 제2권1호
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    • pp.144-147
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    • 2001
  • The HVI properites and Mantis single fiber tensile properties were analyzed to evaluate the relationship between fiber and bundle tensile properties. For this study, a new method has been developed for estimating the modulus and toughness of cotton fiber bundles directly from the HVI tenacity-elongation curves. The single fiber tensile properties were shown to be translated well into the bundle tensile properties. The single fiber breaking elongation was found to be the most significant contributing factor to bundle tensile properties. The bundle breaking elongation and toughness were shown to increase as the single fiber breaking elongation increased. The bundle modulus increased as the single fiber breaking elongation and/or standard deviation of single fiber breaking elongation decreased.

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인발 집속유체의 정상유동 특성 (Steady-Flow Characteristics of Bundle Fluid in Drawing)

  • 허유;김종성
    • 대한기계학회논문집B
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    • 제30권7호
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    • pp.612-621
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    • 2006
  • Drawing is a mechanical operation attenuating material thickness to an appropriate level for the next processing or end usage. When the input material has a form of bundle or bundles made of very thin and long shaped wires or fibers, this attenuation operation is called 'bundle drawing' or 'drafting'. Bundle drawing is being used widely in manufacturing micro sized wires or staple yarns. However, the bundle processed by this operation has more or less defects in the evenness of linear density. Such irregularities cause many problems not only for the product quality but also for the efficiency of the next successive processes. In this research a mathematical model for the dynamic behavior of the bundle fluid is to be set up on the basis of general physical laws containing physical variables, i.e. linear density and velocity as the dynamic state variables of the bundle fluid. The governing equations resulting from the modeling show that they appear in a slightly different form from what they do in a continuum fluid. Then, the governing equations system is simplified in a steady state and the bundle dynamics is simulated, showing that the shape of the velocity profiles depends on two model parameters. Experiments confirm that the model parameters are to be well adjusted to show a coincidence with the theoretical analysis. The higher the drawing ratio and drawing speed we, the more sensitive becomes the bundle flow to exogenous disturbances.

WOBR : 효과적인 그룹별 접근을 지원하는 웹데브 기반의 OSGi 번들 저장소 (WOBR : A WebDAV-Based OSGi Bundle Repository Supporting Effective Group Access)

  • 박종문;박양수;이명준
    • 한국정보통신학회논문지
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    • 제14권2호
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    • pp.521-533
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    • 2010
  • OSGi 프레임워크는 원격으로 관리할 수 있는 자바 기반의 서비스 플랫폼으로서 응용프로그램의 생명주기 관리모델과 서비스 레지스트리, 실행 환경을 제공하며 이를 기반으로 다양한 OSGi 계층과 API, 서비스가 정의되어 있다. 번들은 OSGi 프레임워크에서 실행될 수 있는 응용 프로그램으로 번들 저장소를 통해서 배포되고 일반적으로 저장소에 있는 번들은 지정된 웹 페이지를 통해서 접근 가능하다. 하지만 불행하게도 현재의 번들 저장소는 어떠한 종류의 그룹별 접근이나 동적인 번들의 설치와 배포에 대한 기능을 제공하고 있지 않다. 본 논문에서는 효과적인 사용자 그룹의 접근을 제어하는 웹데브(WebDAV) 프로토콜 기반의 OSGi 번들 저장소인 WOBR에 대하여 기술한다. WOBR은 WOBR 저장소와 이를 관리하고 접근하기 위한 관리 번들과 접근 번들로 구성된다. 관리 번들은 WOBR 번들 저장소의 설정과 저장소에 접근하는 사용자 그룹을 관리한다. 접근 번들은 저장소 접근기능과 번들의 검색을 지원한다. 추가적으로, 로컬 환경에 설치된 번들의 생명주기를 관리하는 기능을 제공한다.

ANTI-LINEAR INVOLUTIONS ON A G-VECTOR BUNDLE

  • Kim, Sung-Sook;Shin, Joon-Kook
    • 대한수학회논문집
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    • 제14권1호
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    • pp.211-216
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    • 1999
  • We study the anti-linear involutions on a real algebraic vector bundle with bundle with a compact real algebraic group action.

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