http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
인간-기계 인터페이스를 위한 근육 진동 신호 기반 팔꿈치 굽힘 힘 예측
윤원근(Wonkeun Youn),김정(Jung Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
The mechaomyography (MMG) is generated by the muscle surface oscillations due to pressure waves originating from the lateral expansion of the contracting muscle fibers. Since MMG signals reflect important aspect of muscle activities including the number and firing rates of recruited motor units (MUs). MMG signals could be utilized for predicting the exerted force by skeletal muscles. The objectives of this study were to investigate the feasibility of predicting isometric force from MMG signals and to explore the effect of muscle fatigue in performance of the force prediction. MMG signals from three contributed muscles during isometric elbow flexion were recorded as well as the force at wrist. Artificial neural network (ANN) with muscle fatigue compensation model were constructed and trained using the MMG signals collected for each subject, It was found that the isometric elbow flexion force could be accurately predicted by proposed methods, based on the values of normalized root mean square error (NRMSE) and the correlation coefficient (CC), with the performance of the ANN with fatigue compensation model being significantly better (NRMSE = 0.106±0.049, CC= 0.918±0.083) that those of its ANN (NRMSE = 0.160±0.045, CC= 0.710±0.211).
항공용 소프트웨어 개발 모델 및 테스팅 설계 기법에 관한 연구
윤원근,이백준,진영권,Youn, Wonkeun,Yi, Baeckjun,Jin, Youngkwon 항공우주시스템공학회 2013 항공우주시스템공학회지 Vol.7 No.3
The paper presents the comprehensive studies of ISTQB(International Software Testing Qualification Board) for the reliable software development system in term of various aspects. It is critical to understand how the software testing is achieved is to efficiently manage the development process, to reduce the development cost, and to ultimately ensure the safety of the entire software system. This study may provide an enriched understanding about the rationale and true intent the behind software development model and testing design methods of ISTQB on software developer, test analysts, test engineers. In addition, this paper may serve as a useful supplementary material for the avionic engineers to establish the new regulations in avionic industries.