• 제목/요약/키워드: Underway

검색결과 826건 처리시간 0.027초

입력 공간의 변환을 이용한 새로운 방식의 퍼지 모델링-KL 변환 방식 (A transformed input-domain approach to fuzzy modeling-KL transform approch)

  • 김은태;박민기;이수영;박민용
    • 전자공학회논문지S
    • /
    • 제35S권4호
    • /
    • pp.58-66
    • /
    • 1998
  • In many situations, it is very important to identify a certain unkown system, it from its input-output data. For this purpose, several system modeling algorithms have been suggested heretofore, and studies regarding the fuzzy modeling based on its nonlinearity get underway as well. Generatlly, fuzzy models have the capability of dividing input space into several subspaces, compared to linear ones. But hitherto subggested fuzzy modeling algorithms do not take into consideration the correlations between components of sample input data and address them independently of each other, which results in ineffective partition of input space. Therefore, to solve this problem, this letter proposes a new fuzzy modeling algorithm which partitions the input space more efficiently that conventional methods by taking into consideration correlations between components of sample data. As a way to use correlation and divide the input space, the method of principal component is ued. Finally, the results of computer simulation are given to demonstrate the validity of this algorithm.

  • PDF

KVMF 기반하 무기체계 운용시 연동방식 개선을 통한 상호운용성 향상 (A Improved Method of the Interoperability through the Improvement of Interoperation System when Operating KVMF-based Weapon System)

  • 권동호;이상호;김승춘
    • 정보화연구
    • /
    • 제10권3호
    • /
    • pp.305-313
    • /
    • 2013
  • 지상군의 전장가시화 구현의 일환으로 실시간의 전술정보교환 공유와 상황인식 보장을 위한 지상전술데이터링크체계개발이 진행 중에 있다. 그러나 KVMF 기반하 무기체계와 기존 무기체계간 전술정보가 이루어지지 않아 문제점이 발생되어 현재 개발 중 혹은 향후 KVMF 기반의 무기체계 개발에서 전장정보공유가 가능하도록 상호운용성 구축방안을 제시한다.

Progress of HTS rotating machine development in Japan

  • Nakamura, Taketsune
    • 한국초전도ㆍ저온공학회논문지
    • /
    • 제13권2호
    • /
    • pp.1-4
    • /
    • 2011
  • This paper describes current status of High Temperature Superconductor (HTS) rotating machinery development in Japan. Recent advances in production technology of HTS materials have continuously stimulated the development of high performance rotating machines. One of the most promising applications for such machines is the ship propulsion, and then some major projects have been underway. Also, energetic challenges for the HTS drive motor, e.g., automobile, have started. Furthermore, low speed and large capacity HTS generators are considered to be exciting candidates for wind turbines. The technology trends of the HTS rotating machines is introduced and discussed in this review paper.

Human sensory feedback research in the armstrong laboratory

  • Weisenberger, Janet M.
    • 대한인간공학회지
    • /
    • 제16권2호
    • /
    • pp.83-100
    • /
    • 1997
  • The Human Sensory Feedback Laboratory, park of the Armstrong Laboratory at Wright-Patterson Air Force Base, Ohio, is involved in the development and evaluation of systems that provide sensory feedback to the human operator in telerobotic and virtual environment applications. Specific projects underway in the laboratory are primarily concerned with the information provided by force and vibrotactile feedback to the operator in dextrous manipulation tasks. Four specific research projects are described in the present report. These include : 1) experiments evaluating a 30-element fingertip display, which employs a titanium-nickel shape memory alloy actuator design to provide vibrotactile feedback about object shape and surface texture ; 2) of a fingertip force-feedback display for 3-dimensional information about object shape and suface texture ; 3) use of a force- feedback joystic to provide "force tunnel" information in pilot pursuit tracking tasks ; and 4) evaluations of a 7 degree-of-freedom exoskeleton used to control a robotic arm. Both basic and applied research questions are discussed.

  • PDF

철도신호 안전성 규격의 세계화 추세와 우리의 대응 (The Globalization Trend of Railway Signalling Safety Standards and its Counterplans)

  • 김종기;조연옥;이종우;정의진
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2002년도 춘계학술대회 논문집
    • /
    • pp.486-491
    • /
    • 2002
  • As the European Union has strengthened and computerized signalling systems have been widely used, the European common standards for the safety of railway signalling systems such as EN 50126, EN 50128, ENV 50129, EN 50159 began to be published from 1996 in CENELEC. At that time, a safety guideline, 'Safety Guidelines for Computerized Train Control and Protection Systems' was published in Japan. The Korean National Railroad also published a safety recommendation for the train control systems with taking into account the Korean railway conditions. Now the preparations for IEC/TC9 Standards are well underway and these standards correspond to CENELEC Standards referred above. These movements and activities are to cope with many technical and operational changes and to reflect the globalization trend of railway sectors along with the computerization of signalling devices. In this connection, this paper studies the globaliztion trend in the safety standards for railway signalling systems and discusses the counterplans for the trend.

  • PDF

국가 연구개발사업 성과물의 실용화 방향 : 미래형 도시교통시스템을 중심으로 (Application of urban transportation system developed in the national R&D project)

  • 이경철;양근율;황영진
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2005년도 추계학술대회 논문집
    • /
    • pp.38-43
    • /
    • 2005
  • In Korea, as in other developed countries. new urban transportation system development projects are underway through national R&D projects. For its final objectives, it becomes more and more important to put the products of R&D projects in use, with the government policies. In this context, the authors of this article suggest. 1) to define a development system, or favorable environment, adequate for the new urban transportation systems for its application and 2) to complement actual regulations on the new transportation technology and trial running based on the law related to the more efficient transportation system.

  • PDF

Semi-automatic Legal Ontology Construction based on Korean Language Sentence Patterns

  • Jo, Dae Woong;Kim, Myung Ho
    • 한국컴퓨터정보학회논문지
    • /
    • 제22권6호
    • /
    • pp.69-77
    • /
    • 2017
  • The information related to legislation is massive, and it takes much time and effort to manually build the legislation ontology. Thus, studies on machine-based automated building methods are underway. However, the studies to automatically construct such systems focus on using TBox construction, and those based on automated ABox construction, which corresponds to instances, theoretical systems and data building cases, has not yet been sufficiently developed. Therefore, this paper suggests using a semi-automatic ABox construction method based on sentence patterns to automatically build the ontology for the legislation of the Republic of Korea. Precision and Recall experiments were conducted to further discuss the performance of the suggested method. These experiments provide a comparison between the manual classification, and the triples built by the machines of the legal information by assessing the corresponding numerical values.

ASTRONOMY FROM THE HIGH ANTARCTIC PLATEAU

  • BURTON, MICHAEL G.;YANG, JI;ICHIKAWA, TAKASHI
    • 천문학논총
    • /
    • 제30권2호
    • /
    • pp.611-616
    • /
    • 2015
  • The Antarctic high plateau offers exceptional conditions for infrared and terahertz astronomy, as well as for programs requiring long, uninterrupted periods for measurements made with high cadence and photometric precision (i.e. time domain astronomy). In this review we summarise the special conditions of the Antarctic plateau which facilitate these observing regimes. We also outline some high profile science programs in each that could be conducted most effectively from the Antarctic high plateau, involving the first light in the Universe, the life cycle of our Galaxy, and the equation of state for the Universe. Three high plateau sites are under particular consideration for furthering such scientific programs{Dome A, Dome F and Ridge A. We summarise the activity underway at each site, which includes the building of new stations and the construction of facilities for optical, infrared and terahertz astronomy, as well as the plans for their future development.

U-Healthcare서비스의 보안 위협과 대응 방법 (A Method of Defense and Security Threats in U-Healthcare Service)

  • 이근호
    • 한국융합학회논문지
    • /
    • 제3권4호
    • /
    • pp.1-5
    • /
    • 2012
  • 최근 IT기술의 발전에 따라 언제 어디서나 이용할 수 있는 U-Healthcare분야의 기술 개발이 빠르게 진행되고 있다. U-Healthcare 기술은 네트워크를 기반으로 하기 때문에 다양한 보안의 위협요소가 발생된다. 본 논문에서는 네트워크 공격 기반의 DOS/DDOS공격에 대한 위협을 알아보고, 기존 Detecting Early DOS/DDOS attacks through Packet Counting을 수정하여 U-Healthcare서비스 상황에 맞는 대응 기법을 제안한다.

장수명 공동주택 설계 시 거주자 관점의 설계요소 도출에 대한 기초연구 (A Basic Research on the Derived of Important Design Factors in Resident Perceptions for Long-Life Housing)

  • 정재호;김도민;박진용;김주형;김재준
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2013년도 춘계 학술논문 발표대회
    • /
    • pp.129-130
    • /
    • 2013
  • Recent increased interest for long-life housing so research and policy transition is underway. Is the trend these days in the long-life housing to promote resident lifestyle as the most important element of the design elements that reflect. Through the purpose of this study has the paradigm of future construction industry with sustainable architecture In front of paradigm has come, through this study, long-life housing to consider when designing a the residents perspective of critical design elements for to draw.

  • PDF