• 제목/요약/키워드: Work reality

검색결과 705건 처리시간 0.032초

촉각시스템용 제어기의 출력특성연구 (A Study of Controller's Output Characteristics for Hatic Interface System)

  • 김영수;김아현;배철;강원찬;김영동
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2003년도 춘계전력전자학술대회 논문집(1)
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    • pp.410-414
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    • 2003
  • In this paper, the virtual-reality system is tried to developed, which controls not only the sense of sight and hearing but also the sense of touch, In order to develope the sense of touch in this study, the stable tactual transaction-system, based on summing up the basic algorithm and theory, is embodied. The hardware of this system consists of the 6DOF haptic interface, a controller and a driver In the case of the software, the proxy algorithm is applied for the force-transaction and the mopping algorithm is used for graphic transaction. In addition to this, the imaginary-device driver is utilized for controlling the system and manager-class is also included in this system to manage the position-change and the like. Consequently, the proxy algorithm Is applied, which makes the system possible to be more stable and prompt with and imaginary object. Moreover, the impulse-algorithm is applied to work out a problem which the tactual transaction-period is different from the graphic transaction-period.

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건설 프로젝트의 DAT (Data Acquisition Technology) 활용현황 및 개선방향 (Application of DAT (Data Acquisition Technology) in the Construction Projects)

  • 서큰솔;정영수
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2008년도 정기학술발표대회 논문집
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    • pp.329-333
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    • 2008
  • 최근 건설공사가 대형화 및 복잡화됨에 따라 건설현장에서의 진행관리 중요성은 점점 더 증대되고 있다. 현재 건설 프로젝트 현장에서는 데이터, 정보 기록 및 분석을 현장관리자가 직접 수작업으로 수행하고 있어 상당한 노력과 시간이 소비되고 있으며, 이는 생산성 저하 등 문제점을 있어 야기하고 있다. 이를 개선하기 위한 방안중의 하나로 첨단 DAT(Data Acquisition Technology) 기술 적용이 시도되고 있으며, 본 연구에서는 이러한 DAT의 포괄적 적용 가능성을 분석함으로써 효율적인 프로젝트 진행관리의 방안을 검토하고자 한다.

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후기자본주의 사회의 패션에 나타난 혼성모방 (Pastiche in the late Capitalism Fashion)

  • 김민자
    • 복식
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    • 제50권
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    • pp.69-84
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    • 2000
  • Th purpose of this study is three folds: to analyze postmodern fashion through the notion of pastiche to enhance an understanding of uncertain and confused situation in the late 1990s and to suggest a way of approach to creativity and originality in recent fashion design. The results can be summarized as follows: 1. Pastiche is an art work that borrows some parts of other artists authentic works and recombines them thus imitating their style technique or motifs selfconciously. 2. Pastiche is based onthe Deconstruction theory: the end of art as a result of deconstruction of the subject the collapse of the meaning the loss of history: the late Capitalism in which reality becomes chage into images or simulacre. 3. Pastiche represented by the death of author which means the exhaustion of creativity is shown in the fashion borrowing subculture styles and art works or religious images. Pastiche fashion which is equal to the play of signifiers floated as image is shown as graffiti and objects Time and space pastiche fashion can be explained by historical eclectism and ethnic looks, Finally pastiche means not the fixed aspect but the open concept of indeterminate condition which includes " anything goes" through the coesistence of various style in pastiche fashion.

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현실환경과 가상 환경을 연동하는 맥락 인식 기반 U-VR 시뮬레이터 (Context-aware U-VR Simulator for Linking Real and Virtual Environments)

  • 오유수;강창구;우운택
    • 한국HCI학회:학술대회논문집
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    • 한국HCI학회 2009년도 학술대회
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    • pp.310-314
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    • 2009
  • 본 논문에서는 유비쿼터스 가상 현실 개념에 기반하여 맥락 정보를 이용하여 현실과 가상 환경을 이음매 없이 연결하는 U-VR 시뮬레이터를 제안한다. U-VR 시뮬레이터는 스마트 홈 환경을 시뮬레이션 할 수 있고, 센서, 액추에이터, 서비스와 같은 새로운 가상 개체들을 기존의 실제 개체에 추가할 수 있게 한다. 제안된 시뮬레이터는 기존의 장치와 시뮬레이션 할 장치를 동시에 활용함으로써 빠른 개발과 비용 절감의 효과가 있다. 또한, 제안된 시뮬레이터는 어플리케이션 개발자들이 유비쿼터스 가상 현실 응용을 쉽고 빠르게 개발하고, 적절한 도메인으로 확장하게 한다. 추후 연구로는 제안된 시뮬레이터가 현실 환경에 가상의 개체들을 지능적으로 증강하도록 확장할 것이다.

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유사명칭 사용 금지론에 관한 서설적 연구 (A introductory study of prohibition agaist using similar terms)

  • 이항구
    • 한국관광식음료학회지:관광식음료경영연구
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    • 제9권
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    • pp.7-13
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    • 1998
  • It is stipulated in Article 22, Paragraph 3 of Tourism Promotion Law that those who do not work for tourism can not use trade name including "Kwan Kwang" or terms similar with it, and even signs with Kwan Kwang or terms similar with it at a business establishment. The stipulation is, however, away from a reality. It only has a sort of apparent meaning even though it is the positive law. However, times are changed and are changing. A rule should reflect the stipulation suitable for contemporary culture. A term, restructuring, exists in the law related to tourism which is connected with tourist industry. In other words, there are many assumed stipulations away from the practical aspect, because of wrong systems. However, what does the restructuring mean in the law related to tourism\ulcorner The thing is to make new system or base appropriate to the present situation, and to study improvement ordinances in Article 12 of Tourism Promotion Law and stipulations for those. In order to do these, the contents of Tourism Promotion Law from Article 1 to 60 and stipulations of law related to tourism law should be studied. In doing so, limited paper could not cover all.cover all.

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특수경비제도의 발전방안에 관한 연구 (A study on develop plan for special security system)

  • 이상원;박주현
    • 시큐리티연구
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    • 제13호
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    • pp.305-326
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    • 2007
  • 21세기 사회에 진입하면서 시민의 안전한 삶을 위협하는 범죄와 테러같은 위험요인들이 증가하고 있다. 따라서 개인의 생명, 신체, 재산 등의 아전의 욕구는 증가 할 수 밖에 없다. 국가중요시설은 적의공격으로부터 파괴되거나 기능이 마비가 될 경우에 국가적으로 중대한 영향을 미치는 시설을 말하며, 특수경비원들이 담당하고 있는 국가중요시설은 적 또는 불순분자, 테러리스트들의 제일의 공격목표가 될 수 밖에 없기 때문에 우리나라에서는 경비가 강화외도 있는 실정이다. 본 연구의 특수경비제도의 현황과 문제점을 검토해보고 발전방안을 모색해보는데 연구의 목적을 두고 있다. 특수경비제도의 발전은 한국 민간경비산업의 발전으로 이어지기 때문에 특수경비제도의 발전을 위해서는 이 분야에 근무하는 경비근무자들의 근무환경개선, 유능한 자원의 확보, 보수의 현실화, 전문자격증제도의 검색시스템의 개선을 행함으로써 한국민간경비산업의 발전에 가속도를 붙일 수 있을 것이다.

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가속도계를 이용한 배관 변위 진동 계측에 관한 연구 (A Study on the Measurement of the Pipeline Displacement Vibration Using Accelerometers)

  • 서진성
    • 한국소음진동공학회논문집
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    • 제24권6호
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    • pp.476-482
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    • 2014
  • The stress analysis of the pipeline is required in any kind of plant for its safe operation. For this, the displacement vibration data measured at many locations of the pipeline should be provided. In reality, the installation of the non-contact type displacement sensors such as laser displacement sensors or eddy current type proximity sensors in a narrow and confined region in the vicinity of the pipeline is almost impracticable. In this work, the general purpose piezo-ceramic accelerometers were attached on the measuring points on the pipeline and the acceleration vibration signal was acquired. The measured acceleration signal was low pass filtered and then downsampled. The resulting acceleration signal was transformed into both the time-domain and frequency-domain displacement signal utilizing the fast Fourier transform techniques. All the procedures are presented in detail. It is demonstrated that the measurement of the pipeline acceleration by using contact type accelerometers can be made for the purpose of providing the required displacement data for the stress analysis of the pipeline.

차량 운전 시뮬레이터에서 모션과 영상의 동기화를 위한 알고리즘 및 구현 방안 (Motion and Image Matching Algorithms and Implementation for Motion Synchronization in a Vehicle Driving Simulator)

  • 김헌세;김대섭;김동환
    • 로봇학회논문지
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    • 제12권2호
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    • pp.184-193
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    • 2017
  • This work shows how to create an algorithm and implementation for motion and image matching between a vehicle simulator and Unity 3D based virtual object. The motion information of the virtual vehicle is transmitted to the real simulator via a RS232 communication protocol, and the motion is controlled based on the inverse kinematics solution of the platform adopting rotary-type six actuators driving system. Wash-out filters to implement the effective motion of the motion platform are adopted, and thereby reduce the dizziness and increase the realistic sense of motion. Furthermore, the simulator system is successfully designed aiming to reducing size and cost with adaptation of rotary-type six actuators, real driving environment via VR (Virtual Reality), and control schemes which employ a synchronization between 6 motors and 3rd order motion profiles. By providing relatively big sense of motion particularly in impact and straight motions mainly causing simulator sickness, dizziness is remarkably reduced, thereby enhancing the sense of realistic motion.

텔레매틱스 HMI 연구를 위한 드라이빙 시뮬레이터의 개발 (Development of a Driving Simulator for Telematics Human-Machine Interface Studies)

  • 구태윤;김배영;신희종;손영탁;서명원
    • 한국자동차공학회논문집
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    • 제17권4호
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    • pp.16-23
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    • 2009
  • Driving simulators are useful tools not only to test the components of future cars but also to evaluate the telematics service and HMI (Human-Machine Interface). However driving simulators cannot be implemented to test and evaluate the telematics service system because the GPS (Global Positioning System) which contains basic functional support for the telematics module do not work in the VR (virtual reality) environment. This paper presents a method to implement telematics service to a driving simulator by developing the GPS simulator which is able to emulate GPS satellite signals consist of NMEA-0183 protocol and RS232C communication standards. It is expected that the driving simulator with the GPS simulator can be used to study HMI and human-factor evaluations of the commercial telematics system to realize the HiLES (Human-in-the-Loop Evaluation System).

Game Theory for Routing Modeling in Communication Networks - A Survey

  • Pavlidou, Fotini-Niovi;Koltsidas, Georgios
    • Journal of Communications and Networks
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    • 제10권3호
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    • pp.268-286
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    • 2008
  • In this work, we review the routing models that use game theoretical methodologies. A very common assumption in the analysis and development of networking algorithms is the full cooperation of the participating nodes. Most of the analytical tools are based on this assumption. However, the reality may differ considerably. The existence of multiple domains belonging to different authorities or even the selfishness of the nodes themselves could result in a performance that significantly deviates from the expected one. Even though it is known to be extensively used in the fields of economics and biology, game theory has attracted the interest of researchers in the field of communication networking as well. Nowadays, game theory is used for the analysis and modeling of protocols in several layers, routing included. This review aims at providing an elucidation of the terminology and principles behind game theory and the most popular and recent routing models. The examined networks are both the traditional networks where latency is of paramount importance and the emerging ad hoc and sensor networks, where energy is the main concern.