• 한국간호교육학회지
• /
• 제27권3호
• /
• pp.227-239
• /
• 2021

Purpose: This study used an exploratory sequential approach (mixed methods) design to explore essential meaning through comparing and analyzing the experiences of nursing students in virtual simulation practice and high fidelity simulation practice education in parallel. Methods: The study participants were 20 nursing students, and data were collected through focus group meetings from July 17 to August 5, 2020, and via online quantitative data from November 10 to November 15, 2020. The qualitative data were analyzed using Giorgi's phenomenological method, and the quantitative data were analyzed using descriptive statistics, the Mann-Whitney U test, Kruskal-Wallis H test analysis of variance and Spearman's ρ correlation. Results: The comparison between the two simulation training experiences was shown in five contextual structures, as follows: (1) reflection of the clinical field, (2) thinking theorem vs. thinking expansion, (3) individual-centered learning vs. team-centered learning, (4) attitudes toward participating in practical training, (5) metacognition of personal competency as a prospective nurse, and (6) revisiting the method of practice training. There was a positive correlation between satisfaction with the practice and the clinical judgment ability of high fidelity simulation, which was statistically significant (r=.47, p=.036). Conclusion: Comparing the experiences between virtual simulation practice training and high fidelity simulation practice training, which has increased in demand due to the Coronavirus Disease-2019 pandemic, is meaningful as it provides practical data for introspection and reflection on in-campus clinical education.

• 융합정보논문지
• /
• 제10권10호
• /
• pp.100-108
• /
• 2020

본 연구의 목적은 간호대학생에게 가상 현실 시뮬레이션 교육과 교외 임상실습을 통합한 교육을 적용한 후의 자기효능감, 임상수행능력 및 비판적 사고 성향의 차이를 확인하여 효과적인 실습교육의 기초자료로 제공하기 위함이다. 본 연구는 2020년 6월 8일부터 7월 3일까지 G시 소재 대학 3학년에 재학 중이며, 가상 현실 시뮬레이션 교육과 교외 임상실습을 받은 경험이 없는 간호대학생 30명을 대상으로 하였다. 자료분석은 Paired t-test로 분석하였다. 연구결과, 가상 현실 시뮬레이션 교육과 교외 임상실습을 통합한 교육을 적용한 후 자기효능감, 임상수행능력 및 비판적 사고 성향정도가 교육 전보다 통계적으로 유의하게 높아진 것으로 나타났다. 본 연구에서 간호대학생의 가상 현실 시뮬레이션 교육과 교외 임상실습을 통합한 교육은 임상수행능력 향상과 더불어 비판적 사고 성향, 자기효능감을 향상시키는 것으로 확인되어 교외 임상실습 전 임상상황에 맞는 다양한 가상 현실 시뮬레이션 교육이 필요할 것으로 사료된다.

• 한국융합학회논문지
• /
• 제12권10호
• /
• pp.333-342
• /
• 2021

본 연구의 목적은 간호대학생에게 가상간호시뮬레이션을 적용한 정신간호실습 전·후 전이동기, 학습자기효능감의 차이를 비교하고 실습 후 실습만족도를 비롯한 전이동기, 학습자기효능감 간의 상관성을 확인하여 효과적인 정신간호실습 교육의 기초자료로 제공하기 위함이다. 본 연구는 2020년 10월 부터 12월 까지 진행되었으며 U시 소재 대학 3학년에 재학 중이고 가상간호시뮬레이션을 적용한 정신간호실습 교육을 받은 41명을 대상으로 하였다. 자료분석은 Paired t-test와 피어슨상관관계(Pearson's correlation coefficient)로 분석하였다. 연구결과, 가상간호시뮬레이션을 적용한 정신간호실습 후 실습 전에 비하여 전이동기는 유의하게 상승하였고 학습자기효능감은 상승하였으나 통계적으로 유의하지 않았다. 가상간호시뮬레이션을 활용한 정신간호실습 후 전이동기, 학습자기효능감, 실습만족도는 통계적으로 유의한 상관관계를 보였다. 이를 통해 가상간호시뮬레이션을 활용한 정신간호실습 교육은 부분적으로 효율적인 실습 전략임이 확인되었다.

• 한국의류산업학회지
• /
• 제12권3호
• /
• pp.347-353
• /
• 2010

The purpose of this study was to examine the appropriate surplus of clothing for a suitable basic bodice pattern of Male Sports Athletes by using the 3D virtual twin and virtual garment simulation system. The results were as follows; 1. By using 3D virtual twin and garment simulation, new bodice pattern considered male sports athletes was development. The basic numerical formula were as follows ; surplus of chest girth=9, surplus of back length=1, armhole depth=back length/4+13, half back width=chest girth/5+2.5, front chest width=chest girth/5+3. 2. Wearing test by 3D virtual garment simulation system was useful to evaluate wearing outline, surplus of clothes and garment space. Also it estimated more highly than existing pattern in silhouette and ease amount, confirming that new bodice pattern is appropriate for the male sports athletes. New bodice pattern was evaluated to allow proper space length of chest and waist. Virtual models production through 3D body scan data, pattern draft and virtual garment digital program were applied to prototypic design method so as to enhance the fitness of ready-made garments. This study is expected to serve as one of important basic data for ensuing studies that may utilize 3D Virtual Garment Simulation System with 2D patterns, and also for future 3D Pattern Production Program development.

• 자동차안전학회지
• /
• 제14권4호
• /
• pp.60-69
• /
• 2022

Recently, the importance of simulation validation in a virtual environment for autonomous driving system validation is increasing. At the same time, interest in the advancement of the virtual driving environment is also increasing. To develop autonomous driving technology, a simulation environment similar to the real-world environment is needed. For this reason, not only the road model is configured in the virtual driving environment, but also the driving environment configuration that includes the surrounding environments -traffic, object, etc- is necessary. In this article, FMTC, which is a test bed for autonomous vehicles, is implemented in a virtual environment and advanced to form a virtual driving environment similar to that of real FMTC. In addition, the similarity of the virtual driving environment is verified through comparative analysis with the real FMTC.

• 한국CDE학회논문집
• /
• 제13권6호
• /
• pp.429-439
• /
• 2008

With a remote operated manipulator system, the situation at a remote site can be rendered through remote visualized image to the operator. Then the operator can quickly realize situations and control the slave manipulator by operating a master input device based on the information of the virtual image. In this study, the remote operator visual support system (ROVSS) was developed for viewing support of a remote operator to perform the remote task effectively. A visual support model based on virtual environment was also inserted and used to fulfill the need of this study. The framework for the system was created by Windows API based on PC and the library of 3D graphic simulation tool such as ENVISION. To realize this system, an operation test environment for a limited operating site was constructed by using experimental robot operation. A 3D virtual environment was designed to provide accurate information about the rotation of robot manipulator, the location and distance of operation tool through the real time synchronization. In order to show the efficiency of the visual support, we conducted the experiments by four methods such as the direct view, the camera view, the virtual view and camera view plus virtual view. The experimental results show that the method of camera view plus virtual view has about 30% more efficiency than the method of camera view.

• Journal of Advanced Marine Engineering and Technology
• /
• 제28권8호
• /
• pp.1185-1194
• /
• 2004

Virtual images for PIV are produced for the construction of a benchmark test tool of PTV systems, Camera parameters obtained by an actual experiment are used to construct the virtual images, LES(Large Eddy Simulation) data sets of a channel flow are used for generation of the virtual images, Using the virtual images and the camera's parameters. three-dimensional velocity vectors are obtained for a channel flow. The capabilities of a 3D-PTV algorithm are investigated by comparing the results obtained by the virtual images and those by an actual measurement for the channel flow.

• 한국군사과학기술학회지
• /
• 제26권1호
• /
• pp.91-101
• /
• 2023

Modeling and Simulation(M&S) technology has been widely used to solve constraints such as time, space, safety, and cost when we implement the same development and test environments as real warfare environments to develop, test, and evaluate weapon systems for the last several decades. The integration and test environments employed for development and test & evaluation are required to provide Live Virtual Construction(LVC) simulation environments for carrying out requirement analysis, design, integration, test and verification. Additionally, they are needed to provide computing environments which are possible to reconfigure computing resources and software components easily according to test configuration changes, and to run legacy software components independently on specific hardware and software environments. In this paper, an Integration Test and Simulation for Engagement Control(ITSEC) bed using a bare-metal virtualization mechanism is proposed to meet the above test and simulation requirements, and it is applied and implemented for an air missile defense system. The engagement simulation experiment results conducted on air and missile defense environments demonstrate that the proposed bed is a sufficiently cost-effective and feasible solution to reconfigure and expand application software and computing resources in accordance with various integration and test environments.

• 한국CDE학회논문집
• /
• 제21권2호
• /
• pp.159-169
• /
• 2016

In order to realize the virtual prototyping (VP) of digital products, it is important to provide the people involved in product development with the appropriate visualization and interaction of the products, and the vivid simulation of user interface (UI) behaviors in an interactive 3D virtual environment. In this paper, we propose an approach to web-based 3D virtual experience using Unity and Leap Motion. We adopt Unity as an implementation platform which easily and rapidly implements the visualization of the products and the design and simulation of their UI behaviors, and allows remote users to get an easy access to the virtual environment. Additionally, we combine Leap Motion with Unity to embody natural and immersive interaction using the user's hand gesture. Based on the proposed approach, we have developed a testbed system for web-based 3D virtual experience and applied it for the design evaluation of various digital products. Button selection test was done to investigate the quality of the interaction using Leap Motion, and a preliminary user study was also performed to show the usefulness of the proposed approach.

• 한국소음진동공학회논문집
• /
• 제14권4호
• /
• pp.319-326
• /
• 2004

The soundscape is a novel attempt to offer comfortable sound environments at the urban public spaces by adding pleasant sounds and removing unagreeable ones. Most important factors to be considered therein are to determine what kind of sounds to offer and how to adjust them to the changing circumstances. But, installing, maintaining and adjusting the soundscape system directly in the field will ensue numerous problems as well as high costs. Thus, it is essential to devise a test method to analyse and verify the outcome before the actual installation in the field takes place. This study aims at devising the instrument system that enables to control. with a great ease, numerous variables. reproduce most agreeable sound sources, and can verify the effects on the virtual simulatory settings, which is named as Virtual Acoustic Field Simulation System (VAFSS).