• 제목/요약/키워드: technical overview

검색결과 160건 처리시간 0.021초

국제 IMS 프로그램의 현황과 전망 (International IMS Program : Its Present and Prospectives)

  • 최병욱;박남규;이현정;이영수
    • 한국정밀공학회지
    • /
    • 제17권3호
    • /
    • pp.7-14
    • /
    • 2000
  • Intelligent Manufacturing Systems (IMS) Program is an industry-driven and government-endorsed initiative which assists and encourages the formation of international research consortia to address technical and other emerging manufacturing challenges in the 21$^{st}$ century$^{[1]}$ . The IMS initiative places special emphasis on the establishment of R&D projects which demonstrate equitable cooperation, including the protection of intellectual property. In this explanatory paper, a brief overview of the IMS Program is described, together with abstracts of some selected projects and a research result of Globeman21 project. The IMS prospective is also given.n.

  • PDF

국내의료로봇의 도전과 과제 (Challenge and Problem of Medical Robot Surgery Research)

  • 김광기
    • 대한의용생체공학회:의공학회지
    • /
    • 제30권4호
    • /
    • pp.271-278
    • /
    • 2009
  • Recently, robot research and development was interesting the inside and outside of the country. Medical robot surgery showed diverse advantages according to advanced technical robot research. Also the academic society, research institute and industry showed concerning to the medical robot system. There is a growing need to introduce medical research for aging society. The surgical landscape is quickly changing because of the major driving force of robotics. Robot system and biomedical engineering research as defined a new engine of development show present ways of future revitalization of medical robot system. Medical robot system will be even more utilized when we keeps trying to combine high biomedical technique, IT research, and robot technique. In this review article, we begin with a short historical review of medical robotics, followed by an overview of clinical applications where robots have been applied.

Eurocode 4: A modern code for the design of composite structures

  • Stark, Jan
    • Steel and Composite Structures
    • /
    • 제5권4호
    • /
    • pp.327-343
    • /
    • 2005
  • The European Standards Organisation (CEN) has planned to develop a complete set of harmonized European building standards. The Eurocodes, being the design standards, form part of this total system of European standards, together with standards for fabrication and erection and product standards. After a period of experimental use of the ENV(European Pre Standard)-versions of the Eurocodes, these are now converted into official EN's (European Standards). Design of composite steel and concrete buildings and bridges is covered by Eurocode 4. An overview will be given of the historic development of Eurocode 4, the structure and contents of the EN version and the present status and planning for completion. The Eurocode treatment of some selected technical items will be presented in more detail.

대추력 액체로켓엔진 예비설계 프로그램 : 비정상작동.동특성 예측 기술 개요 및 현황 (Preliminary Design Program for a High Thrust Liquid Rocket-Engine : Dynamic Characteristic Prediction Program Overview and Technical Achievements)

  • 고태호;김상민;김형민;윤웅섭
    • 한국추진공학회:학술대회논문집
    • /
    • 한국추진공학회 2009년도 춘계학술대회 논문집
    • /
    • pp.417-418
    • /
    • 2009
  • Aiming at time-dependent performance prediction of Liquid Rocket Engine(LRE) system, Program for Dynamic Characteristic Prediction of LRE is overviewed, and a modeling and dynamic analysis of rocket engine system with reference to developed transient simulator for LRE is outlined.

  • PDF

MPEG 오디오의 채널 확장 기술 (Channel Expansion Technology in MPEG Audio)

  • 방희석
    • 방송공학회논문지
    • /
    • 제16권5호
    • /
    • pp.714-721
    • /
    • 2011
  • MPEG 오디오에서는 오디오 신호의 효율적인 압축을 위해서 마스킹 효과, spectral band replication을 이용한 고주파 성분 합성, parametric stereo를 이용한 채널 확장 등의 기술을 이용하고 있다. 본 논문에서는 이 중 최신 기술에 해당하는 채널 확장 기술에 대해서 소개한다. 또한, MPEG 오디오 코덱 중 이 기술을 이용하는 HE-AAC v.2, MPEG Surround, Spatial Audio Object Coding(SAOC), Unified Speech and Audio Coding (USAC)에 대해 기술 소개 및 방송의 적용 예를 기술한다.

An Overview Of Nanonet Based Dye-Sensitized Solar Cell (DSSC) In Solar Cloth

  • Othman, Mohd Azlishah;Ahmad, Badrul Hisham;Amat, Noor Faridah
    • JSTS:Journal of Semiconductor Technology and Science
    • /
    • 제13권6호
    • /
    • pp.635-646
    • /
    • 2013
  • This technical paper contains the information of the Dye-Sensitized Solar Cells (DSSC) working principal where diffusion mechanism acts as electron transport to absorb the sunlight energy to generate the electrical energy. DSSC is photo electrochemical cell that implements the application of photosynthesis process. The performance of electron transport in DSSC has been reviewed in order to enhance the performance and efficiency of electron transport. The improvement of the electron transport also discussed in this paper.

인체 능력 향상을 위한 하지 외골격 시스템의 기술 동향 (Technical Trend of the Lower Limb Exoskeleton System for the Performance Enhancement)

  • 이희돈;한창수
    • 제어로봇시스템학회논문지
    • /
    • 제20권3호
    • /
    • pp.364-371
    • /
    • 2014
  • The purpose of this paper is to review recent developments in lower limb exoskeletons. The exoskeleton system is a human-robot cooperation system that enhances the performance of the wearer in various environments while the human operator is in charge of the position control, contextual perception, and motion signal generation through the robot's artificial intelligence. This system is in the form of a mechanical structure that is combined to the exterior of a human body to improve the muscular power of the wearer. This paper is followed by an overview of the development history of exoskeleton systems and their three main applications in military/industrial field, medical/rehabilitation field and social welfare field. Besides the key technologies in exoskeleton systems, the research is presented from several viewpoints of the exoskeleton mechanism, human-robot interface and human-robot cooperation control.

TBM considerations for soft-ground tunnels

  • Rozgonyi T. G.;Kieffer D. S.;Maidl U.;Bald Cernal
    • 한국지구물리탐사학회:학술대회논문집
    • /
    • 한국지구물리탐사학회 2003년도 Proceedings of the international symposium on the fusion technology
    • /
    • pp.42-51
    • /
    • 2003
  • The global demand for underground facilities has increased substantially in the past decades, and a substantial number of underground projects have had to deal with challenging ground conditions in urban environments. Particularly challenging are weak and unstable water bearing soils. Advancements in shielded TBM tech-nology have led to significant improvements regarding the ability to control ground deformations in soft ground. Nonetheless, ground collapse may occur even when the most advanced TBM designs are employed if unexpected adverse ground conditions are encountered or if insufficient stabilizing pressure is transferred to the tunnel face. This paper reviews common approaches for face stability and face pressure transmission calculations, and provides an overview of some of the latest technological developments and considerations for soft ground TBM applica-tions.

  • PDF

환경분야 자격제도 운영현황과 발전 방안 연구 (A Review on the Qualification System of the Environmental field : Current Status and New Directions)

  • 박종성;이무춘
    • 한국환경교육학회지:환경교육
    • /
    • 제14권1호
    • /
    • pp.43-55
    • /
    • 2001
  • The purpose of this study was to review the current status and problems of the national qualification system in the Environmental field focusing on deficiencies of the regulatory system and qualities of environmental professional including the Environmental control Professional Engineer, Environmental Engineer, Environmental Industrial Engineer and Environmental field. An overview of the environmental field, its current status, domestic qualification items and training conditions in environment-related areas, laws of environmental field, and data of the job analysis were reviewed. The concrete and extensive development plans for the qualification system of the Environmental field are as follows: First of all, a job analysis should be made of on the introduction of new systems or policy modification to reflect technical changes and national policies about the environmental field in the qualification exam. Second, it is essential to prepare policies that are suitable for the qualification system in the Environmental field and that improve its effectiveness. Third, the appropriate policy measures should be taken in order to elevate the social standing of Environmental field qualification holders.

  • PDF

우주환경에서의 화재안전 개괄: 화염의 점화 및 형상 (Technical Overview of Fire Safety in Space: Ignition Characteristics and Flame Shape)

  • 박설현;이주희;김연규;심은섭
    • 한국화재소방학회:학술대회논문집
    • /
    • 한국화재소방학회 2011년도 춘계학술논문발표회 논문집
    • /
    • pp.41-46
    • /
    • 2011
  • 과학기술의 발전으로 세계 각국의 경쟁은 지상을 넘어 우주로 나아가고 있다. 현재 미국을 비롯한 세계 우주기술 선진국들은 달 및 행성탐사 우주선 개발과 같은 유인 우주기술 개발에 박차를 가하고 있다. 따라서 미국, 러시아, 유럽연합(독일, 프랑스 등 11개국), 캐나다, 일본을 중심으로 운영되고 있는 우주정거장은 유인 우주행성탐사 시 생명체 유지에 필요한 시스템 개발과 검증을 위한 기초/응용과학 실험실로 활용되고 있다. 특히 우주환경에서 화재의 발생과 감지/소화의 메카니즘을 이해하고자 다양한 연소실험이 이루어지고 있다. 본 논문에서는 가장 기본적인 우주환경인 미세중력환경에서의 화염의 점화 및 형상특성을 고찰해보고 우주환경 화재안전에 관한 일반적인 내용을 기술하였다.

  • PDF