• International Journal of Internet, Broadcasting and Communication
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• 제15권4호
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• pp.149-159
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• 2023

The Republic of Korea (ROK) Army is developing the Army Synthetic Battlefield Training System and plans divisional-level Live, Virtual, and Constructive (LVC) integrated training. This study proposes a plan to apply VR/AR/MR (Virtual Reality/Augmented Reality/Mixed Reality) technology to LVC integrated training systems to enhance the efficiency and effectiveness of future LVC integrated training. The study investigated immersive military training systems in the ROK and advanced countries. As a result, we confirm that immersive technology can significantly improve the efficiency and effectiveness of military training. Accordingly, we review the key technologies required for building a defense training system with immersive features and propose training subjects that can be enhanced in effectiveness and efficiency when built with an immersive approach. We also propose a plan to apply immersive technology to the Live, Virtual, and Constructive systems for the development of future LVC integrated training system.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2000년도 제 25회 정기총회 및 추계학술발표회
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• pp.159-166
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• 2000

The paper deals with the design and implementation of Navigational Aids Training Simulator (VR-NATS) by Virtual Reality (VR). To gave interaction and immersible training situation to the user, prototype VR-NATS was developed based on the object-oriented operating system with 3D objects of navigational aids. Using the VR-NATS we created virtual navigational aids. As results from the assessment tests, students can obtain IALA (International Association of Lighthouse Authorities) rules of the navigational aids exactly and quickly comparing with conventional education methods. Thus, we found that he proposed VR-NAT is very effective for the next-generation simulation system.

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2017년도 추계학술발표회
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• pp.50-50
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• 2017

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.122-128
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• 2020

This research investigates how a Virtual Reality (VR)-based simulation could be used to train safe operation skills for forklift operators. Forklift operation is categorized as high-risk work by many occupational health and safety regulators and authorities due to high injury and fatality rates involved with forklifts. Therefore, many safety guidelines have been developed for forklift operators. Typically, forklift operation safety training is delivered based on instructional texts or videos, which have limitations in influencing people's safety behavior. Against this background, we propose a VR-based forklift simulator that can enable safe operation skills training through a feedback system. The training program consists of several modules to teach how to perform the basic tasks of forklift operation, such as driving, loading and unloading, following the safety guidelines. The system provides instantaneous instructions and feedback regarding safe operation. This training system is based on the model of "learning-by-doing". The user can repeat the training modules as many times as necessary before being able to perform the given task without violating any safety guidelines. The last training module tests the user's acquisition of all safety skills required. The user feedback from several demonstration sessions showed the potential usefulness of the proposed training system.

• 한국CDE학회논문집
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• 제14권4호
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• pp.271-280
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• 2009

An experience based training system concerning various fire situations which may result many casualties has been required to make rapid decision and improve the responsiveness. Recently, the necessity of virtual reality (VR) based training system which can replace a dangerous full-scale fire training and be easily adopted to the training or evaluation process is increasing. This study constructed tile virtual environment according to pre-defined scenarios, utilized the FDS(Fire Dynamics Simulator), three dimensional computational fire analysis program, to derive numerically simulated data on the propagation of fire. Finally, by visualizing the realistic fire and smoke behavior through virtual reality technique and implementing real-time interaction, we developed a VR-based fire training simulator. Also, in order to ensure the sense for tile real of a virtual world and reaI-time performance at the same time, we proposed appropriate data processing and space search algorithms, demonstrate d the value of proposed method through experiments.

• 문화기술의 융합
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• 제9권1호
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• pp.703-709
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• 2023

항만에서 하역을 수행하는 크레인 운전 훈련은 항만과 흡사한 환경에서 실제 크레인으로 훈련하는 것이 가장 바람직하지만, 시공간의 제약과 비용적인 문제가 있다. 이런 제한을 극복하기 위해 VR(Virtual Reality)을 기반으로 한 크레인 훈련 프로그램과 관련 장치가 많은 관심을 받고 있다. 본 논문에서는 HMD 상에서 동작하는 VR 기반의 항만 크레인 시뮬레이터를 설계하고 구현하였다. 본 논문에서 개발한 시뮬레이터는 HMD에서 동작하는 크레인 시뮬레이터 프로그램과 피교육자의 크레인 운전 입력을 처리하는 IoT 운전 단말기, 그리고 피교육자의 훈련 정보를 저장하는 트레이닝 서버로 구성된다. 시뮬레이터 프로그램은 Unity3D로 구현한 VR 기반의 크레인 훈련 시나리오를 제공하고, 아두이노 기반으로 개발한 IoT 운전 단말기는 2개의 컨트롤러로 구성되어, 사용자의 운전 조작을 HMD로 전달한다. 특히, 본 논문의 크레인 시뮬레이터는 트레이닝 서버를 도입하여 교육자별 환경설정 값, 진도 및 훈련 시간, 운전 경고 상황에 대한 정보를 데이터베이스화하였다. 이러한 서버 이용을 통해, 피교육자는 좀 더 편리한 환경에서 시뮬레이터 활용이 가능하고, 학습 정보 제공에 의한 향상된 교육 효과를 기대할 수 있다.

• Physical Therapy Rehabilitation Science
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• 제9권3호
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• pp.171-177
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• 2020

Objective: This study aimed to investigate the upper limb strength, active joint range of motion (AROM), and upper limb function in persons with chronic stroke using virtual reality training in combination with upper limb sensory stimulation. Design: Two-group pretest-posttest design. Methods: 20 subjects were divided into two groups of 10, the sensory motor stimulation and virtual reality training (SMVR) and virtual reality training (VR) groups. The training was conducted for 30 minutes per session, three times a week for 8 weeks.The participants' upper limb strength was measured via the hand-held dynamometer, joint angle AROM was measured via dual inclinometer, function was measured using the Jebson-Taylor hand function test and the manual function test. Results: Significant differences were observed in all groups before and after the training for upper extremity strength, AROM, and function (p<0.05). Between the two groups, the SMVR group showed significant improvement in muscle strength, AROM, and Jebsen-Taylor hand function test scores compared with the VR groups (p<0.05). Conclusions: In this study, we confirmed that sensory stimulation and VR had positive effects on upper extremity strength, AROM, and function of persons with chronic stroke. The results suggest that in the future, VR in combination with sensory stimulation of the upper limb is likely to become an effective method (a rehabilitation training program) to improve the upper limb function of persons with chronic stroke.

• 한국가스학회지
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• 제21권1호
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• pp.59-64
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• 2017

도시가스 정압기의 가상훈련 플랫폼을 구축하기 위해서 안전훈련 프로그램을 오큘러스 리프트와 기어 VR 그리고 돔 스크린을 이용한 가상환경 훈련 시스템을 구성하였으며, 일반인을 대상으로 각각에 대한 조사를 진행하였다. 조사의 내용은 각 훈련시스템 방법에 대한 편의성 및 현실성 등에 대한 내용이며, 그 목적은 도시가스 정압기 안전훈련 시스템의 실효성을 가질 수 있는지에 대한 검증에 있다. 실험 방법은 일반인을 대상으로 각 VR 기기들을 사용하게 하여 그 차이를 조사하였다. 조사된 결과를 바탕으로 앞으로 진행될 플랫폼 구현에 대한 방향을 알 수 있었으며, 가상 훈련 시스템의 가능성을 알아 볼 수 있었다.

• PNF and Movement
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• 제17권1호
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• pp.81-92
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• 2019

Purpose: This study was an investigation of the effect of unstable supporting exercise in young adults with functional ankle instability. The study tested the use of a jumper and virtual reality (VR) training via a VR-head mounted display (HMD) system to provide functional improvement in proprioception, range of motion (ROM), ankle muscle strength, agility, and balance. Methods: The subjects comprised 61 young adults (in their twenties) with functional ankle instability to decide as less than 24 points using Cumberland ankle instability tool. The subjects were divided into three groups: VUS (VR-HMD and unstable supporting exercise, n = 20), VSS (VR-HMD and stable supporting exercise, n = 19), and NUS (non-VR-HMD and unstable supporting exercise, n = 22). The exercise program was conducted three times per week for three weeks. VR training via a VR-HMD system and a VR application on a smart mobile device were used with the VUS and VSS groups, and unstable supporting exercise was used in the VUS and NUS groups for 30 minutes. Proprioception, ROM, ankle muscle strength, agility, and balance were measured before and after training. Results: The VUS group showed significant differences in most results, including proprioception, ROM, ankle muscle strength, agility, and balance to compare before and after, and the VSS and NUS groups partially. Moreover, the VUS group had significant differences in most results when compared with the other groups. Conclusion: Unstable supporting exercise and VR training via a VR-HMD system improved functional ankle instability in terms of proprioception, ROM, ankle muscle strength, agility, and balance.

• 한국콘텐츠학회논문지
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• 제19권2호
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• pp.661-670
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• 2019

본 연구는 가상현실 기술을 간호교육에 활용한 연구에 대해 알아보기 위해 시행된 체계적 문헌고찰이다. 연구대상 논문은 2018년도 11월 까지 출간된 논문으로 전자 데이터베이스인 PubMed, Proquest (nursing and allied health), CINAHL, RISS를 활용한 문헌검색이 이루어졌다. 검색어로는 'nursing education', 'simulation', 'skill training', 'virtual reality', 'VR'을 사용하였다. 총 695개의 논문이 검색되었고, 최종 7편의 문헌이 포함되었다. 7편 중 5편은 비동등성 대조군 실험설계 연구였으며 2편은 단일군 설계 연구였다. 이중 2편은 수기술 교육에 가상현실 기술을 활용하였으며 5편은 시나리오를 활용한 가상현실 시뮬레이션 교육이었다. 측정된 결과 변수는 수기술 능력, 지식, 총 VR 활용 학습시간, 자기효능감, 의사소통 능력이었고, 대체로 긍정적인 결과가 확인되었으나 일부 연구에서는 통계적으로 유의미하지 않은 결과도 있었다. 본 연구 결과는 가상현실을 활용한 간호교육의 효과에 대한 근거를 제시하였으나 향후 체계적인 측정과정이 포함된 중재 연구가 추가적으로 필요하다. 또한 기존의 수기술 교육프로그램과 시뮬레이션 교육과의 체계적인 비교연구를 통해 비용 등의 효과에 대한 근거제시가 이루어져야 할 것이다.