• Title/Summary/Keyword: LaeA

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Standard Model for Live Actor and Entity Representation in Mixed and Augmented Reality (혼합증강현실에서 라이브 행동자와 실체 표현을 위한 표준 모델)

  • Yooa, Kwan-Hee
    • Journal of Broadcast Engineering
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    • v.21 no.2
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    • pp.192-199
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    • 2016
  • Mixed and augmented reality technique deals with mixing content between real world and virtual world containing augmented reality and augmented virtuality excluding of pure real and pure virtual world. In mixed and augmented reality, if a live actor and entity moving in real world can be embedded more naturally in 3D virtual world, various advanced applications such 3D tele-presence, 3D virtual experience education and etc can be serviced. Therefore, in this paper, we propose a standard model which is supporting to embed the live actor and entity into 3D virtual space, and to interact with each other. And also the natural embedding and interaction of live actor and entity can be performed based on the proposed model.

A Study on the Solution of Dynamics Equation and the Design of Controller for ROBOT (로보트를 위한 Dynamics 방정식의 해 유도와 Controller 설계에 관한 연구)

  • Woo, Sang-Lae;Kim, Hyung-Lae;Park, In-Kap
    • Proceedings of the KIEE Conference
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    • 1987.07a
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    • pp.256-259
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    • 1987
  • In this paper, a servo controller for a robot manipulator is developed. It consists of a conventional MRAS controller for each joint together with a feedback control to Dynamics compensation. To generale the control torque effectively a currant drive method is adopted. The speed of the actuator is measured by using a tachometer and the position of the link is measured by using a potentiometer. To show the effectiveness of the proposed control algorithm the proposed controller is tested in real time.

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The Vector Control of Induction Motor drives Speed Sensorless using a Fuzzy Algorithm

  • Seo, Young-Soo;Lee, Chun-Sang;Hwang, Lak-Hoon;Kim, Jong-Lae;Byong gon Jang;Kim, Joo-Lae;Cho, Moon-Tack;Park, Ki-Soo
    • Proceedings of the IEEK Conference
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    • 2000.07b
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    • pp.1013-1016
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    • 2000
  • In this study, the estimate speed of rotor in the induction motor with Model Reference Adaptive control System (MARC) principle and to study that vector control system feedbacks speed estimated to speed control system and its result is as follows; Considering with explanation an influence of speed estimation mechanism depend on error about the second resistance size established, it estimates the deviation of the second resistance establishment and exhibits a compensation method, what is more, it designs a reparation program using the fuzzy algorithm and testifies the result with the computer simulation. And besides, it composes the load torque estimation and estimates the load torque, as the result, feedback-compensating the result of estimation, it improves the efficiency. In consequence, it makes a good result for more powerful vector control system about the outside trouble.

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Momordica charantia and Allium sativum : Broad Spectrum Antibacterial Activity

  • Khan, M.R.;Omoloso, A.D.
    • Korean Journal of Pharmacognosy
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    • v.29 no.3
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    • pp.155-158
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    • 1998
  • In the Asian sub-continent Momordica charantia and Allium sativum are extensively used as food and are popular in herbal medicine. The two were screened against 15 pathogens and both exhibited broard spectrum antimicrobial activity. As compared to the standard antibiotics, M. charantia demonstrated broader and higher level of activity against most of the organisms. On the other hand A. sativum showed comparable activity to the standard antibiotics. Both M. Charantia and A. sativum are proposed as non toxic, safe, broad spectrum antibacterial agents.

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통계적 접근을 통한 COMS 위성의 LAE 추력기 사용연료량 예측에 관한 연구

  • Park, Bong-Kyu;Han, Cho-Young;Yang, Koon-Ho;Kim, Bang-Yeop;Park, Eung-Sik
    • Aerospace Engineering and Technology
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    • v.4 no.1
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    • pp.95-102
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    • 2005
  • This paper introduces the LAE(Liquid Apogee Engine) and station acquisition fuel budget estimation method for the COMS(Communication, Ocean and Meteorological Satellite) of Korea which is planned to be launched in 2008. And the estimation results are also presented. A statistical approach, more specifically, the Monte-Carlo method was employed to have the estimation include the effect of the launch vehicle GTO injection accuracies. A case study was conducted for several potential launch vehicles to compare the fuel requirements.

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Study on Laser Milling Process of Metal by Femtosecond Laser (펨토초레이저를 이용한 금속 재료의 레이저 밀링 가공에 대한 연구)

  • Kang, Pil Shik;Park, Jong In
    • Laser Solutions
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    • v.17 no.3
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    • pp.10-14
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    • 2014
  • By the specific character of femtosecond laser controlled volume of magnitude of micrometer scale could be ablated without melting phase in SKD11 and SUS304. According to the laser machining parameters various sectional shapes could be engraved on the surface of metals. Typical engraved lines were $10{\mu}m$ wide and deep. Coarse-milled surface was made $10{\mu}m$ lower than the original elevation by a bunch of laser-engraved lines in suitable spacing. The repeated banks with a height of $10{\mu}m$ could be made with the combination of the intact area.

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