• Title/Summary/Keyword: Time Resolved

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On the collision avoidance of two manipulators

  • Lee, B.H.
    • 제어로봇시스템학회:학술대회논문집
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    • 1987.10a
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    • pp.921-925
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    • 1987
  • This paper presents the recent findings for collision avoidance of two manipulators in addition to the results shown in Lee [4]. The collision situation we assume here is that the prespecified final time $K_{f}$ and the prespecified path of one robot can be modified for the purpose of collision avoidance with the other robot. The collision avoidance problem is resolved into three independent categories for a systematic approach.h.

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Motion Level Modifications for Collision Avoidance of Two Manipulators (두 매니퓰레이터의 충돌 회피를 위한 동작단계 수정법)

  • Lee, Bum-Hee
    • Journal of the Korean Institute of Telematics and Electronics
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    • v.25 no.8
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    • pp.893-898
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    • 1988
  • This paper presents the recent findings for collision avoidance of two manipulators in terms of motion level modifications. The collision situation we assume here is that the prespecified final time Kf and the prespecified path of one robot can be modified for the purpose of collision avoidance with the other robot. The collision avoidance problem is resolved into three independent categories for a systematic approach.

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The Effects of Wireless Technology on Distributed Group Decision-Making Practices (무선 기술의 사용이 분산 집단의사결정에 미치는 영향 연구)

  • Kwon, O-Byung;Kim, Tae-Kyung;Kim, Choong-Ryuhn
    • Asia pacific journal of information systems
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    • v.12 no.2
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    • pp.119-135
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    • 2002
  • Those making decisions are no longer located in the same workplace. Wireless technology appears promising as a method to promote group performance in circumstances dependent on time, but not member proximity. However, the success of wireless technology in group decision-making situations has not yet been proven. This paper seeks to learn whether wireless technology affects the performance of group decision-making tasks that should be resolved urgently and/or sources of idea are disconnected with on-line network.

Cleaning of NiP Hard Disk Substrate Using Near-Infrared and Ultraviolet Irradiation of Nd:YAG Laser Pulses (Nd:YAG 레이저의 근적외선과 자외선 펄스를 이용한 NiP 하드디스크 기층의 세척)

  • ;C. P. Grigoropoulos
    • Laser Solutions
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    • v.4 no.2
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    • pp.39-45
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    • 2001
  • This paper introduces a cleaning process for removing submicron-sized particles from NiP hard disk substrates by the liquid-assisted laser cleaning technique. Measurements of cleaning Performance and time-resolved optical diagnostics are Performed to analyze the physical mechanism of contaminant removal. The results reveal that nanosecond laser pulses are effective for removing the contaminants regardless of the wavelength and that a thermal mechanism involving explosive vaporization of liquid dominates the cleaning process.

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Time-resolved Diffraction (시간 분해 회절법)

  • 김태규;이효철
    • Optical Science and Technology
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    • v.8 no.3
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    • pp.10-17
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    • 2004
  • 화학 반응은 원자나 분자가 서로 작용하여 결합이 분해되거나 생성되는 동적인 과정이다. 일반적으로 이러한 동적인 과정은 매우 빠른 시간 내에 일어나기 때문에 (보통수 펨토초에서 수 피코초 내에 일어난다) 화학 반응 도중에 나타나는 중간체(transient structure)의 구조 변화나 분자의 움직임을 실시간으로 잡기 위해서는 매우 높은 시간 분해능이 필요하다. 이러한 중간체의 구조 동역학(structural dynamics)은 그 대상이 되는 분자의 화학적/생물적 기능에 매우 중요한 정보를 제공하기 때문에 실시간 분자 동역학 연구는 복잡한 화학적/생물적 시스템의 메커니즘 규명 연구에 필수적이라고 할 수 있다. (중략)

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In-situ HRTEM Studies of Alumina-Aluminum Solid-Liquid Interfaces

  • Oh, Sang-Ho;Scheu, Christina;Ruhle, Manfred
    • Applied Microscopy
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    • v.36 no.spc1
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    • pp.19-24
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    • 2006
  • The alumina-aluminum solid-liquid interfaces were directly observed at atomic scale by heating the alumina single crystal in high-voltage electron microscope (HVEM) owing to the electron beam damage processes, Atomic ordering in the first several layers of the liquid was clearly resolved adjacent to the alumina surface and its relevance to the single crystal growth was examined with the real-time observations.