• Title/Summary/Keyword: Simulation Study

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Study on Automation for Verification of Naval Ship's Operational Scenarios using Simulation: Focusing on Crew Messroom Case (시뮬레이션을 이용한 함정 운용 시나리오 검증 자동화 연구: 승조원을 고려한 Crew Messroom 운용성 검증을 중심으로)

  • Oh, Dae-Kyun;Lee, Dong-Kun
    • Journal of Ocean Engineering and Technology
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    • v.27 no.1
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    • pp.24-30
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    • 2013
  • The Korea Navy has been making constant efforts to apply M&S (modeling and simulation) to naval ship development, and the generalization of M&S for ship development is a trend. M&S for ship design is used for the V&V (verification and validation) of its design and operation, including design verification and ergonomic design that considers the crew using the Naval Ship Product Model. In addition, many parts of this M&S are repeatedly accomplished regardless of the kinds of ships. This study aims to standardize M&S, which repeatedly applies similar verifications for operation scenarios. A congestion assessment simulation for the major spaces of ships was the subject of the standardization based on the leading research results of various researchers, and a simulation automation solution was suggested. An information model using XML was proposed through the simulation automation concept, and a prototype system based on it was implemented. The usability was shown through a case study that verified the operability performance of the crew messroom.

Effects of a Simulation-based education on Cardiopulmonary Emergency Care Knowledge, Critical Thinking and Problem solving ability in Nursing Students (시뮬레이션 기반 교육이 간호학생의 심폐간호응급지식, 비판적 사고 및 문제해결력에 미치는 효과)

  • CHO, Gyoo-Yeong
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.2
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    • pp.439-449
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    • 2016
  • The purpose of this study was to identify the effects of simulation-based education regarding care in a cardio-pulmonary emergency care as related to knowledge, critical thinking, and problem solving ability in nursing students. The study was conducted with a nonequivalent control group pre-posttest design. Seventy four participants were assigned to either the experimental group(34) or control group(40). The simulation-based cardio-pulmonary emergency care education included lecture, team-based practice, and debriefing, and it was implemented with the experimental group for a week from September 1 to December 11, 2015. Data were analyzed using chi-square, t-test and ANCOVA by using SPSS 21.0 program. The experimental group who had the simulation-based education showed significantly higher knowledge(F=24.930, p<.001), and critical thinking(F=5.951, p<.05) for cardio-pulmonary emergency care compared with the control group who had traditional education. However, there were no significant differences in problem solving ability(F=3.327, p>.072). The results indicate that a simulation-based education is an effective teaching method to improve knowledge and critical thinking in nursing students learning cardio-pulmonary emergency care. Further study is needed to identify the effect of a simulation-based team positive education program of nursing students.

The Study for Improvement Method of Landscape Simulation Program (경관시뮬레이션 프로그램 개선방안에 관한 연구)

  • Lee, Dong-Hwa;Kim, Jae-Myeong
    • Journal of KIBIM
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    • v.10 no.4
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    • pp.89-97
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    • 2020
  • The purpose of this study is to identify the problems of the currently used 3D spatial information utilization system to realize a more accurate landscape and to establish a user-oriented environment to improve the utilization plan for future landscape evaluation. As citizens' interest in urban landscapes with strong public characteristics increases and the speed of urban development also increases, more suitable simulation methods for landscape management are required. Nevertheless, there are many cases of inconvenient correction according to development changes along with many errors in various steps for creating landscape simulation. Therefore, in performing landscape deliberation according to development, it is necessary to create more accurate and efficient landscape simulation, and if changes occur after the initial deliberation, a process that can quickly and conveniently correct and supplement data is needed. In addition, it is necessary to create landscape simulation so that the created modeling source can be used by being compatible with other application programs. In this study, a method of constructing a more accurate and efficient simulation at the time of initial deliberation and a method of creating a landscape simulation model for rapid response to a plan that is changed at the time of re-deliberation are described.

Phase Transition of Confined Gold Nanoparticles: Replica Exchange Molecular Dynamics Study

  • Kim, Hyun-Sik;Li, Feng-Yin;Jang, Soon-Min
    • Bulletin of the Korean Chemical Society
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    • v.33 no.3
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    • pp.929-932
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    • 2012
  • The classical molecular dynamics simulation was used to study the phase transition of gold nanoparticles under confinement using Sutton-Chen (SC) potential. Metal gold nanoparticles with different number of atoms are subject to replica exchange molecular dynamics simulation for this purpose. The simulation showing the solidto-liquid melting temperature largely remains unaffected by confinement, while the confinement induces characteristic pre-melting at very low temperature depending on atom number in nanoparticles.

A Study on the Hyperreal in the Military Look - From the Industrial Age to Modern Times - (밀리터리 룩(Military Look)에 나타난 하이퍼리얼(Hyperreal) - 산업시대이후부터 현대까지 -)

  • Lee, Song-Lim
    • Journal of the Korean Society of Costume
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    • v.61 no.3
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    • pp.83-96
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    • 2011
  • It will be very effective in studying fashion images that reflect society to investigate the process of the images of military uniforms becoming fashion with the images as the original or image changes in the military look in relation to The hyperreal of the Simulation phenomenon. The foundation of the study was set up by studying simulation and simulacra. Studying the simulation phenomenon in fashion was followed by explaining the aspects of simulacra and the hyperreal in image changes in fashion to study and analyze the simulation phenomenon of the military look based on the findings. The study examined the military look from the Industrial Age to modern times through simulation and the hyperreal in the military look of modern fashion through the changes of images that started with military uniforms. Those research efforts led to the following conclusions: Looking into fashion through the military look reveals that The hyperreal made its appearance in most cases with few cases of the 1st and 2nd simulacrum. And hyperreality was closely related to media in fashion under the influence of media. In short, fashion and copy are in an inseparable relation, and the hyperreality phenomenon has always been present in modern fashion.

Effects of High-fidelity Simulator and Standardized Patient on Nursing Care for Children with Fever in Nursing Students (고충실도(High-fidelity) 시뮬레이터와 표준화 환자 (Standardized Patient)를 활용한 발열환아 간호 교육의 효과)

  • Ha, Young-Ok
    • Korean Parent-Child Health Journal
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    • v.20 no.1
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    • pp.10-17
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    • 2017
  • Purpose: This study was conducted to investigate the effects of simulation-based education using high-fidelity simulator and standardized patient in nursing care for children with fever on nursing students. Methods: A total of 166 senior nursing students who completed pediatric nursing practicum courses participated in this study. The single group study design with pretest and posttest was used. The simulation education was provided for 200mins including orientation, simulation preparation, simulation practicum, and debriefing. Pre and post surveys were performed using questionnaires on clinical performance competency, communication skills, critical thinking disposition and self-confidence. Results: The mean scores of clinical performance competency (t=-2.56, p<.05), communication skills (t=-6.39, p<.001), critical thinking disposition (t=-3.43, p<.001), and self-confidence (t=-3.72, p<.001) in posttest were significantly higher than those in pretest. Also, clinical performance competency in nursing care for children with fever has significant relationships with communication skills, critical thinking disposition and self-confidence. Conclusion: The results indicate that simulation-based education using high-fidelity simulator and standardized patient is an effective strategy for improving clinical performance competency, communication skills, critical thinking disposition and self-confidence in nursing students. Further study is needed to verify the effects.

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A Study on the Analysis of Subway Crowdedness using Simulator (시뮬레이터를 이용한 지하철 혼잡도 분석에 관한 연구)

  • Lee, Doo-Yong;Li, Zhong-Sh;Kim, Dong-Hee;Hong, Soon-Heum;Lee, Chang-Cho
    • Journal of the Korea Safety Management & Science
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    • v.10 no.4
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    • pp.267-273
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    • 2008
  • Many people transfer from the automobile to the subway because of increasing in oil price and improvement of mass transit system of Seoul Metropolitan City. But Seoul Metropolitan Subway have brought out passengers discomfort because it is more crowded over the appropriateness because of very high utilization though it is highly technically facilitated. This study deals with the development and simulation study of subway train simulator. We performed the validity simulation study for the simulator for the interval from Sindorim station to Samsung station in Seoul Subway Line 2. We analyzed the simulation results considering crowdedness after we defined the concept of crowdedness. Also we accomplished the analysis of simulation results after simulation under the assumption that the crowdedness is alleviated by controlling the passengers using RFID technology.

A Study of the Adaptation of 2-Dimensional Hair-Style Computer Simulation and Prospects of the 3D System (2D 헤어스타일 시뮬레이션 현황과 3D 시스템 도입방향에 관한 연구)

  • HwangBo, Yun;Ha, Kyu-Soo
    • Journal of the Korea Society of Computer and Information
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    • v.13 no.7
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    • pp.221-229
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    • 2008
  • The development of computer and multimedia brought out new technology, that is, virtual reality. Computer simulation adaptation among the technologies of the virtual reality is spreaded into air service, motor vehicle, medical science, sports, education, even fashion industry. This study look into 2-dimensional hair-style computer simulation system which is started to common use nowadays and the 3-dimensional system which is under the development. And this study proposed several problems such as heavy 3D system booth and the low price but low qualified camera in order to commercialize the 3D system. This study also suggest several alternative, for instance, the change from object photography method to panoramic photography method, the substitute by middle or high end and high qualified camera.

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A Study of Facial Expression of Digital Character with Muscle Simulation System

  • He, Yangyang;Choi, Chul-young
    • International journal of advanced smart convergence
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    • v.8 no.2
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    • pp.162-169
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    • 2019
  • Facial rigging technology has been developing more and more since the 21st century. Facial rigging of various methods is still attempted and a technique of capturing the geometry in real time recently also appears. Currently Modern CG is produced image which is hard to distinguish from actual photograph. However, this kind of technology still requires a lot of equipment and cost. The purpose of this study is to perform facial rigging using muscle simulation instead of using such equipment. Original muscle simulations were made primarily for use in the body of a creature. In this study, however, we use muscle simulations for facial rigging to create a more realistic creature-like effect. To do this, we used Ziva Dynamics' Ziva VFX muscle simulation software. We also develop a method to overcome the disadvantages of muscle simulation. Muscle simulation can not be applied in real time and it takes time to simulate. It also takes a long time to work because the complex muscles must be connected. Our study have solved this problem using blendshape and we want to show you how to apply our method to face rig.

Determination of Container Terminal Operating System Using Computer Simulation (시뮬레이션 기법을 이용한 컨테이너 터미날의 운영시스템 결정)

  • Jang, Seong-Yong;Park, Jin-U
    • IE interfaces
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    • v.1 no.1
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    • pp.49-62
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    • 1988
  • This paper deals with the case study that determines the best operating system of a container terminal using computer simulation techniques. For the simulation, SIMAN simulation language is used. The simulation model developed circumvents the dimensional restrictions imposed by the SIMAN package. Non-terminating simulation experiments are conducted for the 90 days' work on the basis of operation practices of real terminals.

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