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Science China(Information Sciences) 2011年第9期54卷 1813-1826页

作者： HOPSCH Fabian BECKER Bernd HELLEBRAND Sybille POLIAN Ilia STRAUBE Bernd vermeiren wolfgang WUNDERLICH Hans-Joachim Fraunhofer IIS/EAS University of Freiburg University of Paderborn University of Passau University of Stuttgart

To achieve a high product quality for nano-scale systems,both realistic defect mechanisms and process variations must be taken into *** existing approaches for variation-aware digital testing either restrict themselves to special classes of defects or assume given probability distributions to model variabilities,the proposed approach combines defect-oriented testing with statistical library *** uses Monte Carlo simulations at electrical level to extract delay distributions of cells in the presence of defects and for the defect-free *** allows distinguishing the effects of process variations on the cell delay from defect-induced cell delays under process *** provide a suitable interface for test algorithms at higher levels of abstraction,the distributions are represented as histograms and stored in a histogram data base (HDB).Thus,the computationally expensive defect analysis needs to be performed only once as a preprocessing step for library characterization,and statistical test algorithms do not require any low level information beyond the *** generation of the HDB is demonstrated for primitive cells in 45 nm technology.

关键词： process variations test methods statistical test histogram data base

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Design and Control of an Assistive Device for the Study of the Post-stroke Sit-To-Stand Movement

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Journal of Bionic Engineering 2018年第4期15卷 647-660页

作者： Benyamine Allouche Amal Saade Antoine Dequidt Laurent vermeiren Olivier Remy-Neris LAMIH UMR CNRS 8201 Valenciennes University Le Mont Houy 59313 Valenciennes Cedex 9 France Brest hospital Department of Physical Medicine and Rehabilitation 2 Avenue Foch 29200 Brest France

Every year more than 5 million people worldwide become hemiplegic as a direct consequence of stroke. This neurological deficiency, often leads to a partial or a total loss of standing up abilities and/or ambulation skills. In order to propose new supporting solutions lying between the wheelchair and the walker, this paper presents a technological strategy for designing an assistive device for a biomechanical study of the Sit-To-Stand movement （STS）. The control algorithms are implemented in TwinCAT runtime environment. The communi- cation between the component and the control computer is ensured via the EtherCAT fieldbus. The aim of this architecture lies in the fact that it allows a quick development of a research prototype with the same safety issues found on an industrial machine. An experimental test of the STS strategy is presented and discussed in order to evaluate the strategy.

关键词： sit-to-stand parallel manipulator EtherCAT fieldbus assistive device rehabilitation stroke

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