25,759 research outputs found
REAL-TIME ACCELEROMETER SIGNAL PROCESSING OF END POINT DETECTION AND FEATURE EXTRACTION FOR MOTION DETECTION
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Rendering Strategy to Counter Mutual Masking Effect in Multiple Tactile Feedback
No full textRecently, methods and devices that simultaneously utilize two or more tactile feedback types have been proposed for more immersive interaction with virtual objects. However, the masking effect, which makes us less sensitive to various stimuli presented at the same time, has scarcely been explored. In this study, we propose a novel tactile rendering algorithm that can eliminate the mutual masking effect at the user’s sensation level, when mechanical vibration and electrovibration are applied simultaneously. First, the masking functions of the two stimuli were investigated for various stimulus combinations. Based on these, a generalized form of the masking function was derived. We then tested and confirmed that the proposed algorithm, which calculates the required stimulus intensity to compensate for the mutual masking effect, could render the arbitrary stimulus intensity desired to be perceived by the users. The results of the user test revealed that the proposed rendering algorithm significantly improved the virtual object recognition rate by approximately 23% when geometry and texture were presented jointly. This finding suggests principal guidelines for the combined use of mechanical vibration and electrovibration, as well as for other combinations of different tactile feedback types
Lim Dong Sun
No full text학위논문(석사)--아주대학교 경영대학원 :경영학과,2006. 8본 연구논문의 특징은 문헌연구와 XYZ사의 ABC 모형을 설계하면서 활동기준원가회계(Activity-Based Costing, ABC) 시스템을 설계, 구축시 필요한 사항과 도입단계등을 설명함으로써 아직 ABC를 도입하지 않은 기업의 실무자에게는 새로운 원가관리에 대한 시각을 제시하고, 이미 도입한 기업에 대해서는 이론에 근거한 더 나은 개선방안을 찾는데 공헌하고자 함이다目 次
論文要約
第 1 章 서 론
제 1 절 연구의 목적 1
제 2 절 연구의 필요성 2
제 3 절 연구의 목적 5
第 2 章 이론적 배경
제 1 절 원가관리의 기본적 고찰 6
제 2 절 ABC에 대한 이론적 고찰 8
第 3 章 활동기준원가계산 도입의 필요성
제 1 절 제품원가 구성요소의 변화 14
제 2 절 재무회계 위주의 원가계산에 의한 원가정보 14
제 3 절 고객위주의 가치창출 목적의 제품원가정보의 산출 15
제 4 절 경쟁력 강화를 위한 관리기법 활용 16
第 4 章 활동기준원가계산의 도입 및 구축
제 1 절 ABC의 도입조건 18
제 2 절 ABC 시스템의 설계 및 실행 22
第 5 章 ABC 도입의 사례연구
제 1 절 기존 사례연구 고찰 27
제 2 절 XYZ 기업에 대한 ABC 설계 모형 및 계산 실례 29
第 6 章 결 론
제 1 절 결 론 44
제 2 절 연구의 한계 및 시사점 44
참 고 문 헌 47
ABSTRACT 50Maste
Motion Similarity-Based Safety Hook Fastening State Recognition via Deep Siamese Neural Networks
No full textThis letter proposes a monitoring system to prevent falls from height accidents at construction sites. In our previous work, a method was proposed for recognizing the fastening state of the safety hook based on the motion similarity between two inertial measurement unit sensors, but its performance was limited to 90.64% Youden's Index (YI). This study introduces a safety hook monitoring system that achieves better performances by utilizing a deep Siamese neural network-based model to develop valid feature representations, which enhance performances. Our proposed approach achieves 97.69% YI, surpassing previous works in recognition performances.
7-DOF Horseback Riding Simulator based on a crank mechanism with variable radius and Its Inverse Kinematics Solution
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