• 제목/요약/키워드: Active Component

검색결과 1,058건 처리시간 0.03초

능동보안 아키텍쳐를 위한 컴포넌트 분류 및 명세방법 (Component Classification and Specification on Active Security Architecture)

  • 김상영;김재웅;황선명
    • 한국멀티미디어학회논문지
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    • 제7권1호
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    • pp.113-125
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    • 2004
  • 능동 네트워크는 능동 네트워크 애플리케이션의 통신 중 요구사항의 처리를 할 수 있게 하는 소프트웨어 프레임 워크를 제공한다. 능동보안을 위한 컴포넌트 아키텍쳐는 관련 컴포넌트들의 조합으로 재사용 시스템을 쉽게 구축할 수 있다. 이 아키텍쳐는 컴포넌트를 획득하고, 이해하며 조립하기 위한 표준 계층으로서 컴포넌트 식별, 탐색과 조정을 위한 지침을 제공해야 한다. 본 논문에서는 최근 연구되어지고 있는 능동네트워크의 보안에 대한 부분을 관리하기 위한 능동보안 컴포넌트 개발을 위한 아키텍쳐 설계 및 도메인 분석을 하였으며, 능동보안 도메인 아키텍쳐를 이용한 컴포넌트 개발을 위한 설계명세에 대하여 연구하였다.

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웹 데이터베이스 응용을 위한 액티브데이터마이닝 컴포넌트 개발 (Development of Active Data Mining Component for Web Database Applications)

  • 최용구
    • Journal of Information Technology Applications and Management
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    • 제15권2호
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    • pp.1-14
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    • 2008
  • The distinguished prosperity of information technologies from great progress of e-business during the last decade has unavoidably made software development for active data mining to discovery hidden predictive information regarding business trends and behavior from vary large databases. Therefore this paper develops an active mining object(ADMO) component, which provides real-time predictive information from web databases. The ADMO component is to extended ADO(ActiveX Data Object) component to active data mining component based on COM(Component Object Model) for application program interface(API). ADMO component development made use of window script component(WSC) based on XML(eXtensible Markup Language). For the purpose of investigating the application environments and the practical schemes of the ADMO component, experiments for diverse practical applications were performed in this paper. As a result, ADMO component confirmed that it could effectively extract the analytic information of classification and aggregation from vary large databases for Web services.

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An Over Current Protection Scheme for Hybrid Active Power filter

  • Lee Woo-Cheol;Chae Beom-Seok;Hyun Dong-Seok;Lee Taeck-Kie
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2001년도 Proceedings ICPE 01 2001 International Conference on Power Electronics
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    • pp.571-575
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    • 2001
  • A protection scheme for hybrid active power filters, which is combined shunt passive filter and small rated series active filter, is presented and analyzed in this paper. The proposed series active power filter operated as a high impedance 'k($\Omega$)' to the fundamental component when over current occurs in the power distribution system, and three control strategies are proposed in this paper. The first is the method by detecting the fundamental source current through the p-q theory, the second is the method by detecting the fundamental component of load current in Synchronous Reference Frame (SRF) and the third is the method by detecting the input voltage. When the over current occurs in the power distribution system, the proposed scheme protects the series active power filter without additional protection circuits. The validity of proposed protection scheme is investigated through experimental result for the prototype hybrid active power filter system.

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Rule-Based Cooperation of Distributed EC Systems

  • Lee, Dong-Woo
    • International Journal of Contents
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    • 제5권3호
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    • pp.79-85
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    • 2009
  • Emergent requests or urgent information among enterprises require their intimate collaboration in B2B EC (electronic commerce). This paper analyzes the needs of intimate cooperation of distributed EC systems in terms of business contracts and presents an active rule-based methodology of close cooperation among EC systems and an active rule component to support it. Since the rule component provides high level rule patterns and event-based immediate processing, system administrators and programmers can easily program and maintain intimate cooperation of distributed EC systems independently to the application logic. The proposed active rule component facilitates HTTP protocol. Its prototype is implemented in B2B EC environment and evaluated using basic trigger facility of a commercial DBMS.

ActiveX 컴포넌트를 이용한 철도 지반정보 관리프로그램의 개발 (Development of the Railroad Geotechnical Information Management System using ActiveX Component)

  • 황선근;이성혁;김현기;김정무
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2003년도 추계학술대회 논문집(II)
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    • pp.436-441
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    • 2003
  • The railroad geotechnical management system using ActiveX component is developed In this study. Component software is realized as a way that can offer good productivity and stability in software production through maximizing the reusability of software. Developed component software is very useful in saving to much time required for the development, increasing the re-usage rates, utilizing the component per function and substantially reducing the expenses for the tests and the error corrections. In addition, since it is easy to replace with other types of components that satisfy the needs of users, we can easily customize the applications.

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확장된 3차원 전류 좌표계에 의한 능동전력필터의 보상성능 평가 (Compensating Performance Evaluation of Active Power Filters Using the Expanded 3-D Current Coordinates)

  • 김정근;임영철;정영국
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.292-295
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    • 2003
  • Conventional methods in time / frequency domain for evaluating the compensation performance of active power filters are not provided easy solutions. So, the authors have previously proposed 3-D current coordinates which is composed into active component, fundamental reactive component and distorted component of nonlinear loads current. This method has excellent performance, but can not evaluate the characteristics of nonlinear load current whether it is inductive or capacitive. Therefore, To overcome problems mentioned previously, this paper deals with the simple Average power theory and the expanded 3-D current coordinates for evaluating the compensation performance of active power filters. To confirm the validity, active power filters simulator is developed using C-language. From the simulation, results are discuss their utility.

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ActiveX 기술을 이용한 분산 컴퓨팅 시스템 구현 (Implementation of Distributed Computing System using ActiveX Technology)

  • 송민규;변도영;제도홍;김광동;노덕규;오세진;이보안
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 학술대회 논문집 정보 및 제어부문
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    • pp.462-464
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    • 2004
  • ActiveX is the general name for a set of Microsoft Technologies that allows users to re-use code and link individual programs together to suit their computing needs. In addition ActiveX technology Provides a standard model for interapplication communication that different programming language. ActiveX is based on COM(Component Object Model), the COM standard allow developer to create code and application from a multitude of different languages and build a defined interface to that code, making it easily accessible by other application. By using ActiveX, user can access the functionality of other applications running remote computer distributed through the network and communicate over the network to build distributed applications. LabVIEW provides access to other Windows applications using ActiveX technologies. So in this paper we implement distributed application using ActiveX technology for remote control and monitoring.

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상백피로부터 분리한 면역세포 증식작용을 지닌 다당체 (Isolation of Lymphocyte Proliferating Polysaccharide from Mori Cortex Radicis)

  • 김철영;이은주;김환묵;허훈
    • 약학회지
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    • 제42권4호
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    • pp.467-471
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    • 1998
  • Numerous efforts have been made to isolate immunologically active component from Mori Cortex Radicis, since it has been used in the treatment of bronchial asthma, and immune dis order in human. Recently, we reported the purification of an anti-allergic component of the Mori Cortex Radicis. Among the fractions we prepared in the previous study, a fraction was active in the proliferation of murine lymphocytes. The active component (HHM 3-1) was elucidated as a polysaccharade with a small amount of lignin. When it was subjected to MALDI-MS by using 3-hydroxypicolinic acid as a matrix, the molecular weight of the component was estimated as 792688.2dalton. Total hexose and protein content of the component were estimated as 62.6% and 0.51%, respectively and it was composed mainly of glucose, galactose and mannose. The remaining part of the component was estimated as ligin because of the characteristic functional groups in IR and UV spectra. Concomitant treatment of HHM 3-1 with known mitogens synergistically increased the proliferation of B-cells and T-cells.

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능동전력필터의 간단한 순시전력이론과 수정된 보상성능 평가법 (A Simple Instantaneous Power Theory and Modified Compensation Performance Evaluation of Active Power Filters)

  • 정영국;유광호;김영철;양승학;김우용;임영철
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 하계학술대회 논문집 F
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    • pp.2549-2552
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    • 1999
  • The fictitious power theory in time domain is very easy to understand, but power analyzing time of active power is increased, because power is analyzed using signal techniques based on the correlation between voltage and current waveforms. Also, conventional methods in time/frequency domain to evaluate the compensation performance of active power filters are not provided easy solutions. So, the authors have previously proposed 3-D current coordinates which is composed into active component, fundamental reactive component and distorted component of nonlinear loads current. This method has excellent performance, but can not evaluate the characteristics of nonlinear load current whether inductive or capacitive. Therefore, To overcome problems mentioned previously, this paper deals with the simple instantaneous power theory and the modified 3-D current coordinates for evaluating the compensation performance of active power filters. To confirm the validity, active power filters simulator is developed using C-language. From the simulation, results are discussed their utility.

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컴포넌트 재사용을 지원하는 컴포넌트 모델 및 프레임워크 (A New Component Model and Framework for Reuse of Components)

  • 임윤선;김명;정승남;정안모
    • 한국정보과학회논문지:소프트웨어및응용
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    • 제34권12호
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    • pp.1011-1020
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    • 2007
  • 독립적으로 개발된 상용 컴포넌트들을 소스 코드 수정 없이 조립하여 재사용하기 위해서는 컴포넌트간 인터페이스 불일치 문제를 해결해야 한다. 본 논문에서는 이러한 문제를 해결하기 위한 새로운 컴포넌트 모델 및 조립 방법을 제안한다. 제안한 컴포넌트 모델은 각 컴포넌트가 서비스를 제공하는 하위 컴포넌트의 인터페이스에 의존하는 대신 서비스 요청에 관한 인터페이스를 독자적으로 정의하여 내장하고 이를 메타데이타로 노출한다. 조립 시에는 컴포넌트들의 요청 및 서비스 제공 인터페이스에 대한 메타데이타를 읽어 글루 컴포넌트 템플릿 코드를 자동 생성하여 인터페이스 정합에 필요한 중재 코드를 삽입하는 구조이다. 또 프레임워크에서 컴포넌트들에 대한 인스턴스를 관리하고 런타임시 의존성 주입 방식으로 조립을 수행하며, 글루 컴포넌트를 미들웨어 서비스 포인트 및 실시간 모니터링 포인트로 활용하는 방안도 제안한다. 이와 한께 본 논문은 제안한 컴포넌트 모델에 따르는 컴포넌트를 개발하고 조림하는 도구를 구현하여, 실용 가능성을 입증하였다.