• Title/Summary/Keyword: detail component

Search Result 251, Processing Time 0.027 seconds

Damage Effects on the Ultimate Strength of Offshore Tubular Members (해양구조물 원통부재의 최종강도에 대한 손상의 영향)

  • Paik, Jeom-Ki;Shin, Byung-Cheon
    • Journal of Ocean Engineering and Technology
    • /
    • v.3 no.2
    • /
    • pp.577-577
    • /
    • 1989
  • In this paper, a detail evaluation of ultimate strength of offshore unstiffened tubular members with bending and local denting damage which are subjected to combined axial force and bending moment and to component load is presented through theoretical and experimental approaches. Based upon the results obtained here, the damage effect on the ultimate strength of tubular member under combined loads and component load is investigated.

Damage Effects on the Ultimate Strength of Offshore Tubular Members (해양구조물 원통부재의 최종강도에 대한 손상의 영향)

  • Paik, Jeom-Ki;Shin, Byung-Cheon
    • Journal of Ocean Engineering and Technology
    • /
    • v.3 no.2
    • /
    • pp.77-86
    • /
    • 1989
  • In this paper, a detail evaluation of ultimate strength of offshore unstiffened tubular members with bending and local denting damage which are subjected to combined axial force and bending moment and to component load is presented through theoretical and experimental approaches. Based upon the results obtained here, the damage effect on the ultimate strength of tubular member under combined loads and component load is investigated.

  • PDF

Development of Multi-Components Model of Cement Hydration

  • Wang, Xiao-Yong;Lee, Han-Seung;Gyeong, Je-Un;Park, Gi-Bong
    • Proceedings of the Korean Ceranic Society Conference
    • /
    • 2007.07a
    • /
    • pp.129-137
    • /
    • 2007
  • This paper presents a numerical model which can predict degree of hydration of cement mineral component, such as $C_{3}S$, $C_{2}S$, $C_{3}A$, $C_{4}AF$ and microstructure of hydrating cement as a function of water to cement ratio, cement particle size distribution, cement mineral components and temperature. In this model cement particles are parked randomly in cell space and hydration process is described using a multi-component integrated kinetic model. The simulation result of degree of hydration of cement mineral component agrees well with experiment result. The content of cement hydration product, such as CSH and CH can be obtained as an accompanied result during hydration process. By introducing of equal-area projection method, water withdrawl mechanism and contact area among cement particles can be considered in detail. By using proposed method, pore size distribution of hydrating cement is predicted.

  • PDF

Principal component analysis for Hilbertian functional data

  • Kim, Dongwoo;Lee, Young Kyung;Park, Byeong U.
    • Communications for Statistical Applications and Methods
    • /
    • v.27 no.1
    • /
    • pp.149-161
    • /
    • 2020
  • In this paper we extend the functional principal component analysis for real-valued random functions to the case of Hilbert-space-valued functional random objects. For this, we introduce an autocovariance operator acting on the space of real-valued functions. We establish an eigendecomposition of the autocovariance operator and a Karuhnen-Loève expansion. We propose the estimators of the eigenfunctions and the functional principal component scores, and investigate the rates of convergence of the estimators to their targets. We detail the implementation of the methodology for the cases of compositional vectors and density functions, and illustrate the method by analyzing time-varying population composition data. We also discuss an extension of the methodology to multivariate cases and develop the corresponding theory.

Development of Multi-Components Model of Cement Hydration

  • WangXiaoYong
    • Cement Symposium
    • /
    • s.34
    • /
    • pp.129-137
    • /
    • 2007
  • This paper presents a numerical model which can predict degree of cement mineral component, such as $C_3S$, $C_2S$, $C_3A$, $C_4AF$ and microstructure of hydrating cement as a function of water to cement ratio, cement particle size distribution, cement mineral components and temperature. In this model cement particles are parked randomly in cell space and hydration process is described using a multi-component intergrated kinetic model. The simulation result of degree of hydration of cement mineral component agrees well with experiment result. The content of cement hydration product, such as CSH and CH can be obtained as an accompanied result during hydration process. By introducing of equal-area projection method, water withdrawl mechanism and contact area among cement particles can be considered in detail. By using proposed method, pore size distribution of hydrating cement is predicted.

  • PDF

FPGA design for CORBA component (CORBA 컴포넌트를 지원하는 FPGA 설계)

  • Lee, Chang-Hoon;Kim, Jun;Hyoen, Seung-Heon;Chung, Jae-Ho;Choi, Seung-Won
    • 한국정보통신설비학회:학술대회논문집
    • /
    • 2008.08a
    • /
    • pp.25-29
    • /
    • 2008
  • The CORBA that supports FPGA has not been used generally and it is difficult to implement and to develop the CORBA for FPGA. In this paper we propose the way to design FPGA to support a CORBA component. For FPGA to support the CORBA component, embedded processor provided by FPGA and PCI based CORBA is utilized. The PCI based CORBA is for improving data transfer throughput. This paper will be organized as follows. In Chapter I, existing research trend and background are presented for why we propose design of FPGA that support the CORBA component. In Chapter II, FPGA design for supporting CORBA components is proposed and described in detail. In Chapter III, simple experiment is tested to confirm the proposed FPGA design. Finally session 4 is conclusion of this paper.

  • PDF

RELIABILITY-BASED COMPONENT DETERIORATION MODEL FOR BRIDGE LIFE-CYCLE COST ANALYSIS

  • Rong-yau Huang;Wen-zheng Hsu
    • International conference on construction engineering and project management
    • /
    • 2007.03a
    • /
    • pp.386-397
    • /
    • 2007
  • One major development in bridge life cycle cost analysis (LCCA) in recent years is to develop deterioration model for bridge components so that the times of repair/replacement throughout a component's life span can be properly determined. Taiwan also developed her own bridge LCCA model in 2003, integrating with the bridge inspection database in the local bridge management system (T-BMS). Under the framework of the local LCCA model, this study employs the reliability method in developing a deterioration model of bridge components. A component deteriorates through time in its reliability, which represents the probability of a component's condition index exceeds a user specified threshold. Model assumptions and rationale are described in the paper. The steps for applying the developed model are explained in detail. Results and findings are reported.

  • PDF

(The View Model of Software Architecture for Component Based Software Development) (컴포넌트 기반 소프트웨어 개발을 지원하는 소프트웨어 아키텍처 뷰 모델)

  • 박준석;문미경;염근혁
    • Journal of KIISE:Software and Applications
    • /
    • v.30 no.5_6
    • /
    • pp.515-528
    • /
    • 2003
  • Component Based Software Development has been recognized as a new software development paradigm, and received much attention among researchers. However, it requires software architecture based development to assure component reusability and efficient software development. This paper proposes the Component Based 4+1 View Model of software architecture to support component based software development. It is redefined on the basis of the existing 4+1 view model of software architecture developed by Kruchten. Also, we describe the elements of the view model in detail with UML. This architecture constructs the foundation of component based software such as increasing the understanding of software and providing the information about how the components interact with each other. It can be done by exposing the context for the use of software components to each views.

A Noisy Infrared and Visible Light Image Fusion Algorithm

  • Shen, Yu;Xiang, Keyun;Chen, Xiaopeng;Liu, Cheng
    • Journal of Information Processing Systems
    • /
    • v.17 no.5
    • /
    • pp.1004-1019
    • /
    • 2021
  • To solve the problems of the low image contrast, fuzzy edge details and edge details missing in noisy image fusion, this study proposes a noisy infrared and visible light image fusion algorithm based on non-subsample contourlet transform (NSCT) and an improved bilateral filter, which uses NSCT to decompose an image into a low-frequency component and high-frequency component. High-frequency noise and edge information are mainly distributed in the high-frequency component, and the improved bilateral filtering method is used to process the high-frequency component of two images, filtering the noise of the images and calculating the image detail of the infrared image's high-frequency component. It can extract the edge details of the infrared image and visible image as much as possible by superimposing the high-frequency component of infrared image and visible image. At the same time, edge information is enhanced and the visual effect is clearer. For the fusion rule of low-frequency coefficient, the local area standard variance coefficient method is adopted. At last, we decompose the high- and low-frequency coefficient to obtain the fusion image according to the inverse transformation of NSCT. The fusion results show that the edge, contour, texture and other details are maintained and enhanced while the noise is filtered, and the fusion image with a clear edge is obtained. The algorithm could better filter noise and obtain clear fused images in noisy infrared and visible light image fusion.

Techniques of Component Workflow Variability Implementation based on .NET in the Enterprise Framework (엔터프라이즈 프레임워크에서 닷넷 기반의 컴포넌트 워크플로우 가변성 구현 기법)

  • 노재우;이승훈;류성열
    • The Journal of Society for e-Business Studies
    • /
    • v.9 no.2
    • /
    • pp.145-161
    • /
    • 2004
  • CBD(Component Based Development) can make use of component of block unit that is implementation beforehand and shorten software development cost and time. Also, component can reduce complexity for the large application development because it can hide detail part of internal and offer interface. Common requirement of family in the enterprise framework environment can express workflow, but it is very difficult that express special workflow in single component on various family member's requirement. Therefore, necessity about workflow variability management between component for family member and implementation method had been required constantly This treatise presents implementation techniques for component workflow variability in enterprise framework under .NET base. Presented component workflow variability implementation techniques supposes that commonness business workflow that family can use in enterprise workflow was created already in component, and improve workflow's extensity between component by workflow composition between special component and techniques for practice to various family member.

  • PDF