• 제목/요약/키워드: power-knowledge

검색결과 1,198건 처리시간 0.037초

풍력자원해석 자동화 프로그램 Auto-Wind 개발과 응용 (Development and application of Auto-Wind program for automated analysis of wind resource)

  • 윤성욱;전완호;김현구
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2010년도 추계학술대회 초록집
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    • pp.191-191
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    • 2010
  • As many researchers want to predict or assess more about wind condition and wind power generation, CFD(Computational Fluid Dynamics) analysis method is very good way to do predict or assess wind condition and power generation. But CFD analysis is needed much knowledge of aerodynamics and physical fluid theory. In this paper, Auto-Wind CFD analysis program will be introduced. User does not need specific knowledge of CFD or fluid theory. This program just needs topographical data and wind data for initial condition. Then all of process is running automatically without any order of user. And this program gives for user to select and set initial condition for advanced solving CFD. At the last procedure of solving, Auto-Wind program shows analysis of topography and wind condition of target area. Moreover, Auto-Wind can predict wind power generation with calculation in the program. This Auto-Wind analysis program will be good tool for many wind power researchers in real field.

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원전사고 평가를 위한 원전 사건유형분석 시스템(ETAS) 개발 (Development of the Event Type Analysis System (ETAS) for the Accident Evaluation in Nuclear Power Plants)

  • 최영환;김영미
    • 한국압력기기공학회 논문집
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    • 제5권2호
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    • pp.35-39
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    • 2009
  • In this study, Event Type Analysis System (ETAS) is developed for the accident evaluation in nuclear power plant. The ETAS system can be used in supporting regulator and/or operator under event situation in nuclear power plants. The ETAS system can categorize the all transient events to 3 categories such as Down-2000, Down-2173, and Slow Fluctuation. We develop the program structure for ETAS system and web-based ETAS system. The ETAS system will be used as sub module of Knowledge-Based Event Evaluation Network (K-EvENT) which is developing for the against the accident in nuclear power plants.

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Public Diplomacy, Soft Power and Language: The Case of the Korean Language in Mexico City

  • Hernandez, Eduardo Luciano Tadeo
    • Journal of Contemporary Eastern Asia
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    • 제17권1호
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    • pp.27-49
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    • 2018
  • Public Diplomacy (PD) is the third pillar of South Korean foreign policy. According to the Ministry of Foreign Affairs, PD aims to attract foreign audiences by means of art, knowledge transmission, media, language and foreign aid. When it comes to the Korean language, its global profile has seen an especially marked increase in recent years (Kim, 2009). Thus, this paper's objective is to explain the relevance of the Korean language in the generation of South Korea's soft power. I draw from $C{\acute{e}}sar$ Villanueva's reflections in order to problematize how language promotion can be translated into soft power at five different levels: the empathetic, the sympathetic, the geopolitical, the diplomatic and the utilitarian. I observe that in the case of the Korean language in Mexico City, soft power has the potential to be generated on three levels: it helps to increase knowledge of Korean culture (empathetic); it exercises symbolic persuasion (geopolitical), since the products of cultural industries are mostly in Korean; and it is used as a tool for economic transactions in Mexico City (utilitarian).

An intelligent eddy current signal evaluation system to automate the non-destructive testing of steam generator tubes in nuclear power plant

  • Kang, Soon-Ju;Ryu, Chan-Ho;Choi, In-Seon;Kim, Young-Ill;Kim, kill-Yoo;Hur, Young-Hwan;Choi, Seong-Soo;Choi, Baeng-Jae;Woo, Hee-Gon
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 19-21 Oct. 1992
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    • pp.74-78
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    • 1992
  • This paper describes an intelligent system to automatic evaluation of eddy current(EC) signal for Inspection of steam generator(SG) tubes in nuclear power plant. Some features of the intelligent system design in the proposed system are : (1) separation of representation scheme ,or event capturing knowledge in EC signal and for structural inspection knowledge in SG tubes inspection; (2) each representation scheme is implemented in different methods, one is syntactic pattern grammar and the other is rule based production. This intelligent system also includes an data base system and an user interface system to support integration of the hybrid knowledge processing methods. The intelligent system based on the proposed concept is useful in simplifying the knowledge elicitation process of the rule based production system, and in increasing the performance in real time signal inspection application.

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후쿠시마 원전 사고 후 방사선 및 원전에 대한 인식 분석 (Analysis of Awareness of Radiation and Nuclear Power Plants after Fukushima Nuclear Accident)

  • 김창수;김동현;김정훈
    • 한국콘텐츠학회논문지
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    • 제13권9호
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    • pp.281-287
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    • 2013
  • 본 연구는 부산광역시 거주민을 대상으로 배경 변인에 따라 방사선에 대한 지식, 지식수준의 지각, 방사선의 편익과 원자력 위험에 대한 인식, 그리고 후쿠시마 원전 사고 관련 정보수집과 인식 등은 어떻게 다른지를 알아보기 위한 목적으로 진행되었다. 분석을 위한 연구 대상은 414명의 거주민이다. 그 결과, 조사대상자들은 방사선의 필요성은 원칙적으로 인정하나 안전성에 대해서는 부정적인 인식을 가지고 있는 것으로 분석되었다. 이러한 부정적 인식은 방사선에 대한 지식을 기반으로 한 것이 아니라 과거 원전 사고 등에 기인한 것으로 판단되며, 향후 올바른 인식 전환을 위해서는 미디어를 통한 방사선과 원자력에 대한 교육과 홍보 그리고 방사선지식의 폭을 넓히고 나아가 보다 다양한 측면에서 시민들의 인식 변화를 위한 노력이 필요하다고 사료된다.

계통 내 온라인 고장 진단 시스템 개발 (ON-LINE FAULT DIAGNOSIS IN THE LARGE POWER SYSTEM)

  • 서규석;백영식;김정년
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 추계학술대회 논문집 전력기술부문
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    • pp.122-124
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    • 2004
  • Recently, power system is getting larger and more complex. When the complex power system has a problem, it is very difficult even for the experts to find out where the problem is and to make a timely decision by operators. There have been many studies on these problems but the results are not good enough for applying to real power system. Therefore power system operators always had to judge the exact state of power system and had to be preparative for the problems that can occur later. We developed new methods that can be applied to complex power system by dividing the system into small modules. By using 'module' we can combine small modules together to make complex power systems and the knowledge base that is applied to fault diagnosis system. As a result, compared to previously developed diagnosis products, operational time has shortened, and the knowledge base becomes simpler and clearer, which made online usage capable. This system can be used as a complementary measure that helps the operator from making any mistakes.

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지식순환과 지식경영전략 (Knowledge Management and the Steps for Implementing Knowledge Management Strategy)

  • 김세인
    • 정보학연구
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    • 제4권1호
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    • pp.39-54
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    • 2001
  • 본 논문에서는 웹브라우저를 이용하여 로봇을 원격 제어한다. 4대의 독립된 PC를 사용하여 각각의 기능을 분리하고 상호 연동하는 구조로 PC를 연결하였다. 조작자가 시간과 장소에 제약받지 않고 웹 브라우저를 이용하여 제어값을 입력하면 제어값은 웹 서버를 거쳐 데이터베이스에 저장된다. 로봇과 연결된 PC는 데이터베이스에서 1ms 간격으로 제어값을 입력받아 제어값의 변화가 있을 경우만 제어값의 변화량으로 로봇이 동작한다. 스텝모터를 이용하여 간단한 로봇을 제작하고 이를 웹 브라우저를 이용하여 실제 동작시킨다. 조작자가 원하는 제어값이 최종 수신단의 로봇에 제대로 전달되어 동작하는지 확인하고 웹브라우저를 이용한 로봇제어의 가능성을 확인하였다.

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정보기술(IT)의 가치평가분석 및 측정에 관한 연구 - 특허기술을 중심으로 - (Analysis and Measurement on the Evaluation of the Information Technology)

  • 김승환;김복수;이주연
    • 한국산업정보학회논문지
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    • 제13권5호
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    • pp.106-116
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    • 2008
  • 본 연구는 국내의 경제상황을 판단하여 특허권의 유통을 활성화시키고 기술력을 바탕으로 하는 기업과 기술의 가치평가에 종사하는 사람들에게 방향을 제시하기 위해 문헌조사, 사례연구를 중심으로 수행하였으며 특허권의 가치평가에 대한 개념정립을 위해 우선 특허권에 대한 다양한 접근방식과 관계요인, 이론 그리고, 특허권을 다양한 국 내외 문헌을 중심으로 정리 요약하였다. 또한, 라이센스교섭이나 그 외의 거래시 무형자산이나 지식재산의 이용과 관련한 적정한 로열티의 비율 및 특허권 침해의 액을 산정하는데 기본이 되는 특허권의 가치를 평가하는 방법을 제시한다. 더불어 주요가치평가 기법을 제시하고, 가치평가 기법의 문제점과 개선방향을 통해 새로운 가치평가방법의 새로운 방향을 고찰해보며, 특허권의 거래 및 활성화를 위한 대안, 특허권의 가치평가제도를 위한 대책을 제시한 국내 가치평가의 문제점과 국내 모 평가회사의 분석사례 및 시사점을 통해 국내기술에 대한 가치평가의 방법과 제도적, 환경적 문제의 발전방향에 대해 제시하고자 한다.

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A Method of Knowledge Base Verification for Nuclear Power Plant Expert Systems Using Extended Petri Nets

  • Kwon, I.W.;Seong, P.H.
    • Nuclear Engineering and Technology
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    • 제28권6호
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    • pp.522-531
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    • 1996
  • The adoption of expert systems mainly as operator supporting systems is becoming increasingly popular as the control algorithms of system become more and more sophisticated and complicated. The verification phase of knowledge base is an important part for developing reliable expert systems, especially in nuclear industry. Although several strategies or tools have been developed to perform potential error checking, they often neglect the reliability of verification methods. Because a Petri net provides a uniform mathematical formalization of knowledge base, it has been employed for knowledge base verification. In this work, we devise and suggest an automated tool, called COKEP(Checker Of Knowledge base using Extended Petri net), for detecting incorrectness, inconsistency, and incompletensess in a knowledge base. The scope of the verification problem is expanded to chained errors, unlike previous studies that assume error incidence to be limited to rule pairs only. In addition, we consider certainty factor in checking, because most of knowledge bases have certainty factors.

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Knowledge Base Verification Based on Enhanced Colored Petri Net

  • Kim, Jong-Hyun;Seong, Poong-Hyun
    • 한국원자력학회:학술대회논문집
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    • 한국원자력학회 1997년도 추계학술발표회논문집(1)
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    • pp.271-276
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    • 1997
  • Verification is a process aimed at demonstrating whether a system meets it's specified requirements. As expert systems are used in various applications, the knowledge base verification of systems fakes an important position. The conventional Petri net approach that has been studied recently in order to verify the knowledge base is found that it is inadequate to verify the knowledge base of large and complex system, such as alarm processing system of nuclear power plant. Thus, we propose an improved method that models the knowledge base as enhanced colored Petri net. In this study. we analyze the reachability and the error characteristics of the knowledge base and apply the method to verification of simple knowledge base.

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