• Title/Summary/Keyword: Physical Simulation

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Evaporation Process Modeling for Large OLED Mass-fabrication System (대면적 유기EL 양산 장비 개발을 위한 증착 공정 모델링)

  • Lee, Eung-Ki
    • Journal of the Semiconductor & Display Technology
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    • v.5 no.4 s.17
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    • pp.29-34
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    • 2006
  • In order to design an OLED(Organic Luminescent Emitting Device) evaporation system, geometric simulation of film thickness distribution profile is required. For the OLED evaporation process, thin film thickness uniformity is of great practical importance. In this paper, a geometric modeling algorithm is introduced for process simulation of the OLED evaporating process. The physical fact of the evaporating process is modeled mathematically. Based on the developed method, the thickness of the thin-film layer can be successfully controlled.

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Real-time simulation on B-spline deformable volume-part III (B-spline volume 변형체의 실시간 시뮬레이션 II)

  • 전성기;조맹효
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2002.10a
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    • pp.70-77
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    • 2002
  • Since our physical world cannot be modeled as rigid body, deformable object models are important. For real-time simulation of elastic object, it must be guaranteed by its exact solution and low-latency computational cost. In this paper, we describe the boundary integral equation formulation of linear elastic body and related boundary element method(BEM). The deformation of elastic body can be effectively solved with 1ow run-time computational costs, using precomputed Green Function and fast low-rank updates based on Capacitance Matrix Algorithm.

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Development of Panel Part in Flight Simulator based on PC (PC 기반의 항공기 시뮬레이터 패널부분 개발)

  • 이준우;채상원;이칠기
    • Journal of the Korea Society for Simulation
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    • v.10 no.4
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    • pp.31-40
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    • 2001
  • The flight simulator should be made like a actual flight. For the scene of sight, instrument should show the condition of flight and the pilot should catch the altitude, speed, pose and rate of lift of the airplane. This paper describes visual training program of driving airplane in practice. It is for beginners using joystick in PC, implements airplane physical equations. Flight simulator in it implements airplane panel parts in order to make simple modeling, And it uses rendering technology to implement vision parts of panel. It uses double buffering In make it faster and more efficient..

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3D Flight Simulator for Education of Flying Tactics (교육 훈련용 3차원 항공기 시뮬레이터의 구현)

  • 최성윤;채상원;한영신;이칠기
    • Journal of the Korea Society for Simulation
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    • v.12 no.3
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    • pp.1-11
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    • 2003
  • The flight simulator should be made like a actual flight. For the scene of sight, instrument should show the condition of flight and the pilot should catch the altitude, speed, pose and rate of lift of the airplane. The paper describes 3D flight visual training program of driving airplane in practice. It is for beginners using joystick in PC, implements airplane physical equations. And it uses rendering technology to implement vision parts of flying object.

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3D Flight Simulator for Education of Flying Tactics (교육 훈련용 3차원 항공기 시뮬레이터의 구현)

  • 최성윤;채상원;한영신;이칠기
    • Proceedings of the Korea Society for Simulation Conference
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    • 2003.06a
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    • pp.37-42
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    • 2003
  • The flight simulator should be made like a actual flight. For the scene of sight, instrument should show the condition of flight and the pilot should catch the altitude, speed, pose and rate of lift of the airplane. The paper describes 3D flight visual training program of driving airplane in practice. It is for beginners using joystick in PC, implements airplane physical equations. And it uses rendering technology to implement vision parts of flying object.

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Simulation of Rear Lamp using Spectral-Based Ray Tracing (분광분포기반의 광선추적을 이용한 리어램프의 시뮬레이션)

  • 이명영;이철희;이호근;하영호
    • Proceedings of the IEEK Conference
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    • 2002.06d
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    • pp.327-330
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    • 2002
  • This paper proposes the simulation algorithm of rear lamp of car using a ray tracing method that models transmission and refraction of light frequently used in computer graphics At first. To reproduce an image accurately. incident on a sight of viewer, we propose the backward ray tracing method based on spectral distribution representing physical characteristics of illuminant and object used in real. We implement the reproduction algorithm of rear lamp image applying the Bouguer-Beer's law to an optical absorptive phenomenon. As the result, more realistic image can be reproduced.

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Development of Educational Electromagnetic Simulator using Java (자바를 이용한 교육용 전자계 시뮬레이터 개발)

  • 김태용
    • Proceedings of the Korea Society for Simulation Conference
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    • 2003.11a
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    • pp.181-184
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    • 2003
  • Electromagnetic field simulator have been developed on Java 2 platform (J2SE) because provides robust solutions for applications as well as object oriented design. The simulator can be easily utilized with independent platform. Physical variables for the simulator can be controlled by the user. The numerical results are immediately displayed with graphical images in real time. Therefore, this simulator is intended to be used for education such as antenna engineering, microwave engineering, electromagnetic theory and so on.

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Cosmic Dawn III: Simulating the Reionization of the Local Group

  • Ahn, Kyungjin
    • The Bulletin of The Korean Astronomical Society
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    • v.46 no.1
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    • pp.47.1-47.1
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    • 2021
  • Cosmic Dawn III (CoDa III) is the last of the series of simulations of the reionization of the Local Group, the galaxy cluster including the Milky Way and the M31. The simulation is based on the constrained initial condition, N-body and hydrodynamic simulation of structure formation, modelling of galaxy formation, calculation of radiation transfer, and calibration against the observed high-redshift galaxy luminosity function. We present various physical properties we observed and important lessons that could stimulate future observations.

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The Effect of Senior Simulation on Dental Hygiene Student's Attitude toward the Elderly (노인유사체험이 치위생학 전공 대학생의 노인에 대한 태도에 미치는 영향)

  • Kim, Sun-Ju
    • Journal of dental hygiene science
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    • v.12 no.6
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    • pp.652-659
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    • 2012
  • The purpose of this study was to examine whether senior simulation would bring any positive change to the attitude of dental hygiene students toward the elderly. The experimental group consisted of 58 dental hygiene students at a college. The experimental procedure was to do activities for 40 minutes wearing aging simulation suit. Self administered questionnaires were used to ask the attitude toward the elderly after senior simulation. The data were analyzed with SPSS program. General and aging related characteristics of subjects were analyzed through descriptive statistics. To testify the differences of the attitude after senior simulation, paired t-test was used. An experiment was conducted from May 27 to June 14, 2012, and the findings of the study were as follows: 1. There wasn't any perfect positive change in the overall attitude of the students toward elderly people after senior simulation, but their attitude got a little more positive whereas they took a neutral attitude in the past; 2. The students who had ever lived with elderly people under the same roof and who had ever received education related to the elderly underwent a more positive change in their attitude toward the elderly; 3. To what extent senior simulation was helpful for the understanding of the elderly was checked, and the majority replied that it was very useful or useful for the understanding of their physical aspects. The findings of the study confirmed that senior simulation didn't change the overall attitude of the students toward the elderly in a positive way yet brought about some positive changes in part. Therefore senior simulation is expected to be one of significant educational programs that could encourage students to have a better physical understanding of the elderly, to take a more positive attitude to them and to provide them with quality dental service.

The Effect of Senior Simulation on Nurses′ Attitude Toward the Elderly (노인유사체험이 간호사의 노인에 대한 태도에 미치는 영향)

  • Yu Su-Jeong;Kim Shin-Mi;Lee Yun-Jung
    • Journal of Korean Academy of Nursing
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    • v.34 no.6
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    • pp.974-982
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    • 2004
  • Purpose: This study was performed to explore the effect of senior simulation on nurses' attitudes toward the elderly. Method: Twenty-seven nurses working in various settings such as acute hospitals, community health centers, geriatric hospitals, and clinics were recruited. Among them, 25 subjects completed the whole experimental protocol. Aging Semantic Differential Scaling was utilized to evaluate attitudes toward the elderly and 'Suit for Experiencing Being Aged' from the Sakamoto Model was provided for the experiment. Before and after the experiment subjects filled out questionnaires. Result: Attitude score before experiment was 4.36, which indicates neutral attitude. Objective attitude scores were not different significantly after experiment. However subjective statements indicated attitude changes in a positive way. Conclusion: Senior simulation can affect nurses' attitude toward elderly in subjective way. That is, nurses became more empathetic and understanding to elderly's physical limitations and felt more initiative nursing approach were needed in caring elderly.