• Title/Summary/Keyword: smooth

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A Study on Development of Robot Simulator for Collision Avoidance (충돌 회피를 위한 로봇 시뮬레이터의 개발에 관한 연구)

  • 이주형
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.32 no.3
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    • pp.321-328
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    • 1996
  • This paper presents a robot simulator which can automatically generate a smooth collision free path. This simulator has the characterstisc of the object - oriented programming which is coded in Borland C+ +. Using General Inverse Algorithm, the inverse kinematics solutions of any kind of robots can be found generally. This simulator also uses Bezier Functions for the description of a smooth collision - free path. In addition, GUI(Graphic User Interface)technique is employed for user's convenience.

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A STUDY ON KERNEL ESTIMATION OF A SMOOTH DISTRIBUTION FUNCTION ON CENSORED DATA

  • Jee, Eun Sook
    • The Mathematical Education
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    • v.31 no.2
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    • pp.133-140
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    • 1992
  • The problem of estimating a smooth distribution function F at a point $\tau$ based on randomly right censored data is treated under certain smoothness conditions on F . The asymptotic performance of a certain class of kernel estimators is compared to that of the Kap lan-Meier estimator of F($\tau$). It is shown that the .elative deficiency of the Kaplan-Meier estimate. of F($\tau$) with respect to the appropriately chosen kernel type estimate. tends to infinity as the sample size n increases to infinity. Strong uniform consistency and the weak convergence of the normalized process are also proved.

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Scheme of Smooth Handoffs Using Move Prediction in Mobile Computing Environments (이동 컴퓨팅 환경에서 이동 예측기법을 이용한 Smooth Handoff 기범)

  • 이재용;엄영익
    • Proceedings of the Korean Information Science Society Conference
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    • 2001.10c
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    • pp.832-834
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    • 2001
  • 이동 컴퓨팅 환경이란 사용자가 어떤 장소로 이동하더라도 동일한 환경에서 네트워크 서비스를 끊임없이 제공받을 수 있는 환경을 말하며, Mobile-IP는 이러한 환경이 가지는 특성들을 고려한 네트워크 프로토콜이다. 그러나 이 프로토콜도 이동 노드의 빈번한 핸드오프시 위치 등록과정에서 반드시 홈 에이전트를 거쳐야 하므로, 네트워크 자원과 서비스 지연을 초래하는 단점을 가진다. 본 논문의 제안 기법은 Mobile-IP 환경에 이동 예측기법을 이용하여, 이동 노드의 움직임을 추적하여 이동 방향을 예측하고 이동노드가 핸드오프를 수행하기 전에 사전 등록(pre-registration) 과정을 두어 문제점이었던 등록과정의 지연과 패킷의 손실의 지연을 줄이고자 한다.

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The Investigation for the stable control of voltage and current in a superconductor power systems (초전도 전력 시스템의 안정적 전압.전류 제어를 위한 고찰)

  • 김동준;이양주;이창열;이승제
    • Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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    • 2003.02a
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    • pp.193-195
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    • 2003
  • In superconductor power systems, a quench detector can misrecognize oscillation about current or voltage control as a quench. So, for the correct detection of a quench, it seems need to guarantee a smooth control of current or voltage. In this paper, we have studied a control function and control parameter for smooth control of current or voltage.

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Control of Client Using Smooth Streaming (Smooth 스트리밍을 이용한 클라이언트 제어)

  • 강현규;문영성
    • Proceedings of the Korean Information Science Society Conference
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    • 2000.10c
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    • pp.322-324
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    • 2000
  • 인터넷을 통한 실시간 멀티미디어 전송에 있어서 인터넷이 "Best effort" 서비스이기 때문에 지연과 지연변이 그리고 패킷 손실 등이 발생하게 되어 서비스의 질에 큰 영향을 미치게 된다. 더욱이 멀티미디어 데이터는 시간에 민감하다는 속성 때문에 네트워크상의 지연이나 지연 변이는 클라이언트 측의 재생지연과 버퍼의 Underflow, 미디어간 동기의 어긋남을 발생시킬 수 있다. 본 논문에서는 이를 해결하기 위해서 네트워크나 서버 측에서의 접근이 아닌 클라이언트의 측면에서 접근하였다. 기존 adaptive한 기법[2][3]을 도입, 개선하므로써 클라이언트가 네트워크의 상태에 적응하여 지연과 지연변이의 영향을 최소화시키도록 클라이언트의 버퍼관리와 playback control을 설계하였다.ol을 설계하였다.

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NITRIC OXIDE (NO) DIRECTLY ACTIVATES CALCIUM-ACTIVATED POTASSIUM CHANNELS FROM RAT BRAIN RECONSTITUTED INTO PLANAR LIPID BILAYER

  • Shin, Jung-Hoon;Suh, Chang-Kook;Sungkwon Chung;Uhm, Dae-Yong
    • Proceedings of the Korean Biophysical Society Conference
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    • 1996.07a
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    • pp.35-35
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    • 1996
  • Nitric oxide (NO) has been reported to have many roles in vivo ranging from the neurotransmitter in brain to the relaxant in smooth muscles. Recently, using inside-out patches, Bolotina et al. (1) showed that relaxing effect of NO is aortic smooth muscle is through direct activation of Ca2+-activated K+ channels (maxi-K), resulting in hyperpolarization. (omitted)

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Almost paracompactness and near paracompactness in L-smooth topological spaces

  • A. A. Ramadan;S. E. Abbas;Kim, Yong-Chan
    • Journal of the Korean Institute of Intelligent Systems
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    • v.10 no.6
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    • pp.564-568
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    • 2000
  • We introduce in L-smooth topological spaces definitions of paracompactness, almost paracompactness and near paracompactness all of which turn out to be good extensions of their classical topological counterparts. These weak paracompactness are defined for arbitrary L-fuzzy sets and their properties studied.

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SONOGRAPHIC FINDING OF MAXILLOFACIAL MASS (악안면 종창에 대한 초음파 소견)

  • Kim, Hyoun-Tae
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.14 no.1_2
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    • pp.143-145
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    • 1992
  • Fourteen masses in the maxillofacial areas which are not diagnosised simply as abscess were studied with ultrasound to evaluate its diagnostic role. Benign mass showed homogeneous echopattern with smooth margin and cyst a few internal echo with smooth margin. But malignant mass showed irregular margin, inhomogeneous echotexture and deep extension. Ultrasonography considered as an initial noninvasive imaging modality for the evaluation of maxillofacial masses.

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A NOTE ON SMOOTH AFFINE VARIETIES

  • SO, KWANG-HO
    • Honam Mathematical Journal
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    • v.1 no.1
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    • pp.15-20
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    • 1979
  • 본(本) 논문(論文)에서는 smooth Affine variety가 미분가능(微分可能) 다양체(多樣體)임을 보임으로써 대수기하학(代數幾何學)이 다양체이론(多樣體理論)과 관련(關聯)됨을 논(論)하였다. $\S1$에서는 affine variety의 차원(次元)과 affine variety의 접공간(接空間)에 대(對)한 정의(正義)와 그에 관련(關聯)된 성질(性質)들을 논(論)하였고 $\S2$에서는 simple point와 국소(局所) 매개변수(媒介變數), 그리고 ${\Theta}_x$에서의 유리함수의 급수(級數) 등(等)을 이용(利用)하여 주정리(主定理)(정리(定理)9)를 증명(證明)하였다.

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Pharmacological Studies on Root Bark Extract of Aralia elata -General Pharmac \logical Action on the Butanol Fraction- (두릅나무 근피 추출물의 약물학적 연구 - 두릅나무 추출물의 Butanol분획의 일반약리작용 -)

  • 정춘식;이은방
    • YAKHAK HOEJI
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    • v.37 no.6
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    • pp.631-637
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    • 1993
  • In the previous report, it was described that the butanol fraction of the root bark extract of Aralia elata had potent antigastritic and antiulcerative effects in rats, In this pharmacological profile, the fraction revealed low acute toxicities in mice and rats, no central nervous system activities, moderate analgesic action, weak inhibitory action in carrageenin edema of rats and no direct effects on isolated smooth muscles of rats and guinea-pigs. Slight lowering of blood pressure as given i.v. in rabbit was observed.

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