• 한국해양공학회지
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• 제3권2호
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• pp.577-577
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• 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.

• 한국해양공학회지
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• 제3권2호
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• pp.77-86
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• 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.

• 한국세라믹학회:학술대회논문집
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• 한국세라믹학회 2007년도 제34회 시멘트 심포지엄
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• pp.129-137
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• 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.

• Communications for Statistical Applications and Methods
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• 제27권1호
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• pp.149-161
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• 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.

• 시멘트 심포지엄
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• 통권34호
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• pp.129-137
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• 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.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2008년도 정보통신설비 학술대회
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• pp.25-29
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• 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.

• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.386-397
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• 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.

• 한국정보과학회논문지:소프트웨어및응용
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• 제30권5_6호
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• pp.515-528
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• 2003

컴포넌트 기반 소프트웨어 개발 방법은 새로운 패러다임으로 인식되고, 활발한 연구가 진행되고 있다. 그러나 컴포넌트 기반 개발에서 컴포넌트의 재사용성과 효율적인 소프트웨어 개발을 보장하기 위해서는 소프트웨어 아키텍처를 기반으로 한 개발이 필요하다. 본 논문에서는 컴포넌트 기반 소프트웨어 개발을 지원하기 위해, Kruchten이 제시한 4+1 뷰 모델을 기반으로 재 정의한 컴포넌트 기반 4+1 소프트웨어 아키텍처 뷰 모델을 제안한다. 또한 뷰 모델의 요소와 UML을 이용한 뷰 모델 요소의 표현을 제시한다 이 아키텍처는 컴포넌트의 사용문맥을 각 뷰에 반영함으로써 소프트웨어에 대한 이해와, 컴포넌트의 상호 작용에 대한 정보 등 컴포넌트 기반 소프트웨어 구성에 대한 틀을 구성한다.

• Journal of Information Processing Systems
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• 제17권5호
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• pp.1004-1019
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• 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.

• 한국전자거래학회지
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• 제9권2호
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• pp.145-161
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• 2004

컴포넌트 기반 개발(Component Based Development, CBD)은 미리 구현된 블록단위의 컴포넌트를 사용하여 소프트웨어 개발 비용 및 시간을 단축할 수 있다. 또한 컴포넌트는 내부의 상세 부분을 숨기고 인터페이스를 제공하여 대형 어플리케이션을 개발하는데 복잡성을 감소시킬 수 있다. 엔터프라이즈 프레임 워크 환경에서의 패밀리 (Family)의 공통적인 요구사항은 컴포넌트 내 업무 워크플로우 형태로 표현될 수 있으나, 다양한 패밀리 멤버(Family Member)의 요구사항에 특화된 워크플로우를 하나의 컴포넌트 내에 표현하는 것은 매우 어렵다. 따라서 패밀리 멤버 (Family Member)를 위한 컴포넌트간 워크플로우 가변성 관리 및 구헌 방법에 대한 필요성은 끊임없이 요구되어 왔다. 본 논문에서는 .NET 기반 하에 엔터프라이즈 프레임워크에서 컴포넌트 워크플로우 가변성을 위한 구현 기법을 제시한다. 제시된 컴포넌트 워크플로우 가변성 구현 기법은 엔터프라이즈 프레 임워크에서 패밀리가 사용할 수 있는 공통 업무 워크플로우가 컴포넌트 내에 이미 생성되었음을 가정하며. 다양한 패밀리 멤버에 특화된 컴포넌트간의 워크플로우 구성 및 실행을 위한 기법으로 컴포넌트간 워크플로우의 확장성을 높여주게 된다.