• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.16 no.5
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• pp.247-255
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• 2023

In order to create a virtual reality space in the metaverse, accurate tracking sensors and implementation are required. Most government agencies and corporations performs tracking to use their own tracking sensors and a base stations, such as VIVE. The VIVE method may have tracking problems due to spatial constraints and obstacles or nearby structures, and it is also that the number of people that can be accommodated within the space is also limited. In this paper, we designed and implemented metaverse using an IR sensor tracking system to freely track the spatial virtual reality metaverse, and we experimented contents in metaverse by placing IR sensors additionally on the floor and ceiling if needed in order to flexibly configure the metaverse space. As a result of the experiment, the tracking stability of the IR-tracking system was approximately 12% higher than the VIVE method. Additionally, adding more tracking sensors on the floor increases tracking stability and allows for a stable representation of virtual space.

• Journal of Korean Tunnelling and Underground Space Association
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• v.5 no.2
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• pp.135-146
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• 2003

This paper presents the effect of ground vibration induced by vibrohammer and RCD on adjancent subway tunnel performance using FDM program. Firstly, the stability criteria for structures near vibration source were proposed according to existing data, then peak particle velocity around tunnel was estimated based on detailed information of vibrohammer and existing formula for dynamic loads through numerical analysis. The peak particle velocity induced by RCD bit rotation was also estimated using surveyed data and formula. Consequently, displacement and stress responses were obtained at crown, shoulder and spring line and compared with the criteria to check stability of tunnel.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2009.10a
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• pp.433-434
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• 2009

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2010.05a
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• pp.624-625
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• 2010

• The Inventors News
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• no.28
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• pp.7-7
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• 2004

브리얼리의 스테인리스 - 바이츠만의 아세톤 - 우에사카의 아이스크림 제조기 - 녹음과 재생이 가능한 엽서

• Journal of Korea Game Society
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• v.20 no.2
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• pp.153-162
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• 2020

In this research, a VR game was developed to experience the fire evacuation from a fired building, intending calm and fast reaction in urgent fire situations. The user should move out through the fire door, stairs and corridors toward exit door using the VIVE controllers. When the user can't proceed the path because of fire flame or smoke, he/she should turn back to find another path. A building of Hoseo university was modeled and tests were carried out by students with polls focused on the usability and the effectiveness of this VR game. The result has been analyzed to show their responses.

• Journal of Korea Game Society
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• v.21 no.5
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• pp.41-48
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• 2021

This paper introduces a mobile augmented visualization technology that augments a three-dimensional virtual human body on a mannequin model using two pose(position and rotation) tracking sensors. The conventional camera tracking technology used for augmented visualization has the disadvantage of failing to calculate the camera pose when the camera shakes or moves quickly because it uses the camera image, but using a pose tracking sensor can overcome this disadvantage. Also, even if the position of the mannequin is changed or rotated, augmented visualization is possible using the data of the pose tracking sensor attached to the mannequin, and above all there is no load for camera tracking.

• Life and Agrochemicals
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• v.27 no.3 s.216
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• pp.60-63
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• 2006

FMC코리아∙신영아그로∙아진케미칼, 본회 준회원 가입/ 신임 한국잔류농약연구회장에 김용환씨 선출/ 동부한농화학, 「동부한농」으로 사명 변경/ 바이엘, 「바스타」글로벌 경쟁대회 수상 영예/ 바이엘, 「영업 정책 설명회 및 인센티브 시상식」개최/ 바이엘, 제품상담 위한 대표 전화번호 개설/ 동부한농, 진딧물약「세티스」본격 출시/ 경농, 신제품「모스피란 입제」출시/ 신젠타, 2006신제품 출시회 성료/ 신젠타, 이삭 주요병해 전문약제「킬트」출시/ 바스프∙스미토모화학, 각각 사무실 이전

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.830-831
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• 2007

부하의 가격에 대한 높은 반응성(price-responsiveness)과 이를 이끌어 낼 수 있는 적절한 수요관리(demand response) 정책은 구조 개편된 전력 시장에서 가격 변동성 및 설비에 대한 투자 부족 문제를 효과적으로 해결하는 데 필수적이라는 데에는 많은 연구자들이 동의하고 있다. 그럼에도 불구하고, 특히 전력 사용을 미리 계획하지 않는 소규모 소비자들의 경우, 전력 소비가 본질적으로 매우 탄력적이지 못하므로(inelastic) 가격에 민감한 부하를 이끌어 내기 위한 수요관리 정책은 신중하게 세워져야 한다. 본 논문은 최종 소비자에게 전력을 제공하면서 critical peak pricing(CPP)를 동적으로 관리하고 이러한 수요관리에 대한 인센티브를 가진 개체를 도입함으로써 가격에 민감한 부하를 이끌어 내는 수요 반응의 접근법을 제시할 것이다. 가격에 민감한 부하 및 수요 반응 정책의 문제는 정책적, 경제적, 기술적 측면에서 검토되어야 하는 바이나, 본 논문에서는 기술적 측면 및 경제적인 인센티브의 수식화에 초점을 맞추었다. 정책에 인센티브를 가진 개체의 이윤 방정식을 세움으로써 문제를 정식화하였으며, 문제의 최적 해를 구하기 위해 예측 가격을 바탕으로 backward dynamic programming을 통한 swing option 평가 기법을 사용하여 최적의 수요관리 시점을 구해야 함을 제안하는 바이다.

• Convergence Security Journal
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• v.15 no.3_1
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• pp.41-51
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• 2015

Human have more complicate and skilled ability for lying even cheat ourself. It is not easy to cheat unconscious things like sweat, eyes, or voice, but if some one cheat own self, he can cheat every of that. Lie is one of the way to spread our gene and our instinct make a lie. Every living organism even bacteria or virus use similar trick to survive. In human body, there are more complicate and profound mechanism for lying like breathe, sweat, eyes, face or voice. We can control some of that and make a fake, but it can't be perfect. Human also called 'Homo Fallax' cause we have a language and skill to lie with it. In present, we can detect lie with polygraph, but it has few weakness. So we try to use Vibraimage technology for resolve it. In this paper, we describe how to use Vibraimage for lie detection and the research history.