• 제목/요약/키워드: modeling.

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General problem solver를 이용한 intelligent LP 모형화에 대한 연구

  • 박성주;권오병
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 1991년도 춘계공동학술대회 발표논문 및 초록집; 전북대학교, 전주; 26-27 Apr. 1991
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    • pp.469-474
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    • 1991
  • Recent interests in intelligent LP modeling aim to support MS/OR-naive users to be able to apply LP models to practical problems without the expert knowledges required. For more generalized LP modeling, a GPS(General Problem Solver)-based approach is suggested in this paper. It identifies modeling process as a means-ends analysis process. In view of this approach, a) we first divide the knowledges into domain specific assertive knowledges(state) and procedural knowledges about LP modeling(operator and macro) for model-domain independence, b) and then generate LP model according to the difference resolution techniques.

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좌표계 전환기법을 활용한 모바일 로봇의 기구학 모델링 (Kinematic Modeling of Mobile Robots by Transfer Method of Generalized Coordinates)

  • 김도형;김희국;이병주
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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    • pp.44-44
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    • 2000
  • Firstly, kinematic model of various type of wheels which includesskidding and skidding friction are presented. Tend, the transfer method of generalized coordinates which is useful to model the parallel mechanisms, can be applied to mobile robot by including such friction terms. Particularly, by appling the modeling method to mobile robot consisting of two conventional wheels and one caster wheel, forword/reverse kinematic modeling could be obtained without using pseudoinverse solutions.

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Basic Homogeneous Transformation(BHT)을 이용한 이동로봇 기구학 모델링에 대한 연구 (A Study on Modeling of Mobile Robot Using Basic Homogeneous Transformation(BHT))

  • 류신형;이기철;이성렬;박민용
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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    • pp.265-265
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    • 2000
  • In this paper the systematic modeling method of general wheeled mobile robot is proposed. First we show how to describe kinematics properties of wheeled mobile robot in the method formulating constraint equations using Basic Homogeneous Transform(BHT) which is used mainly the kinematics modeling of manipulator, and, under assumption it's provided part of nullvector in given constraint equations, find kinematics model of mobile robot related to actuators in real robot.

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라이다 데이터와 항공영상에 의한 건물 모델링 방법 (Building Modeling Method with LiDAR Data and Aerial Imagery)

  • 이진형;유은진;이동천
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2010년 춘계학술발표회 논문집
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    • pp.67-68
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    • 2010
  • Segmentation of LiDAR data is an important procedure in building modeling. Therefore, in this study, aerial imagery is used to group LiDAR data for both improving segmentation accuracy and modeling detail surface patches of the roofs. The results show that the proposed method is efficient to analyze and to model various types of roof shape.

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Magnetization Characteristics Analysis in a Pole Changing Memory Motor Using Coupled FEM and Preisach Modeling

  • Lee, Jung-Ho;Lee, Seung-Chul
    • Journal of Magnetics
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    • 제16권4호
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    • pp.386-390
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    • 2011
  • This paper deals with the magnetic equivalent circuit modeling and permanent magnet (PM) performance evaluations of a pole changing memory motor (PCMM). We use a coupled transient finite element method (FEM) and Preisach modeling, which is presented to analyze the magnetic characteristics of the permanent magnets. The focus of this paper is on the evaluation of characteristics such as the magnetizing direction and the pole number of the machine under re- and de-magnetization conditions.

Towards A Better Understanding of Space Debris Environment

  • Hanada, Toshiya
    • International Journal of Aerospace System Engineering
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    • 제3권1호
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    • pp.5-9
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    • 2016
  • This paper briefly introduces efforts into space debris modeling towards a better understanding of space debris environment. Space debris modeling mainly consists of debris generation and orbit propagation. Debris generation can characterize and predict physical properties of fragments originating from explosions or collisions. Orbit propagation can characterize, track, and predict the behavior of individual or groups of space objects. Therefore, space debris modeling can build evolutionary models as essential tools to predict the stability of the future space debris populations. Space debris modeling is also useful and effective to improve the efficiency of measurements to be aware of the present environment.

파이버모델에 의한 철근콘크리트 구조물의 비선형 파괴해석 (Nonlinear Failure Analysis of Reinforced Concrete Structures using Fiber Model)

  • 송하원;김일철;변근주
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1998년도 봄 학술발표회 논문집
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    • pp.127-134
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    • 1998
  • The objectives of this paper is to analyze the reinforced concrete structures by using fiber model. In this study, the fiber modeling techniques including modeling of support conditions are studied. In order to verify the modeling techniques, analysis results obtained for reinforced concrete cantilever beam and reinforced concrete T-girder bridge under cyclic loading are compared with experimental results from full scale test. From the comparison, it is shown that the modeling techniques in this study can be well applied to the nonlinear failure analysis of reinforced concrete structures with porper modifications.

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Active Linear Modeling of Cochlear Biomechanics Using Hspice

  • Jarng Soon Suck;Kwon You Jung
    • The Journal of the Acoustical Society of Korea
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    • 제24권3E호
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    • pp.77-86
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    • 2005
  • This paper shows one and two dimensional active linear modeling of cochlear biomechanics using Hspice. The advantage of the Hspice modeling is that the cochlear biomechanics may be implemented into an analog Ie chip. This paper explains in detail how to transform the physical cochlear biomechanics to the electrical circuit model and how to represent the circuit in Hspice code. There are some circuit design rules to make the Hspice code to be executed properly.

범용 CAD 프로그램에서의 응용을 위한 선형 곡면화 방법론에 관한 연구 (A Study on Surface Modeling of Hull forms for General purpose CAD program)

  • 이준호;김동준
    • 대한조선학회논문집
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    • 제41권1호
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    • pp.75-81
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    • 2004
  • In this study surface modeling .method with 3D curve net is proposed. For surface modeling, ship hull was divided into several parts, Generated surface was loaded general purpose CAD program through IGES file format, and the quality of generated surface model was checked by CATIA's internal function. Lastly it is tried to find a method for improving the accuracy of surface connection by using the blending method in CATIA and the result was discussed.

고조파를 고려한 지능형 부하모델링 기법 개발 (A Development of Load Modeling Technique with Harmonics)

  • 박재원;이종필;변상준;임재윤;지평식
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 제38회 하계학술대회
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    • pp.551-552
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    • 2007
  • Increasingly nonlinear dynamic loads have been connected into power systems. This adds to the harmonics in the power system. In traditional load modeling techniques, the harmonics has not been considered. Thus, the harmonics problems in load modeling are considered and ANN load modeling is proposed.

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