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To study firing signal propagation of hierarchical neuronal network, this paper investigates a neuronal network with FHN (FitzHugh-Nagumo) nodes. Average firing rate is applied to show the performance of the propagation. Signal raster plots in different layer demonstrate intuitively propagation process. Moreover, effects of the connection probability, the random connection number, the number of branches...
Medical robotics plays an increasingly important role in minimally invasively surgery (MIS), where access is usually through a small incision on the body. This paper introduces the conceptual design of a compact MIS robot that integrates a continuum manipulator with remote center-of-motion (RCM) mechanism. This robotic system allows surgical instruments to enhance the dexterity inside the patient's...
Most of the recent complex event semantics is based on regular expressions, extended with additional filters such as window constraints. We observe that many applications today require parallel (interleaving) event patterns. Moreover, we observe that this matching needs to be approximate in terms of event orders and missing events. We first propose the query semantics. Then we devise a foundation...
When the vector hydrophone is applied to the underwater platform, the acoustic wave that scattered by the platform has a serious impact on the measuring properties of the vector hydrophone. Regarding to the vector hydrophone's engineering application, a study on the near-field acoustic characteristics of the finite elastic plate is reported. In this paper, the theoretical basis of the finite element...
We propose a new, simple way to engineer the radiation patterns of subwavelength-scale metallic semiconductor cavities for coupling light from a nanoscale metal cavity into integrated waveguides uni-/bi-directionally with efficiency up to ∼90%.
Based on Finite Element Analysis (FEA) of Permanent Magnet Synchronous Motor (PMSM), after taking into account of magnetic saturation and cross-coupling effect, the relationship between flux linkage and stator current becomes nonlinear. Making use of two-dimensional surface to fit the flux linkage and stator current, then solving partial derivative to the fitted flux linkage with respect to stator...
The focus of the present work is on introducing the simulation approach based on software to the adjustable speed AC drive system curriculum. These techniques not only help to develop a deeper understanding of adjustable speed AC drive system but also to evaluate performance and feasibility of control strategies and topological features without fabrication of a real system. Typical elements and control...
This paper presents a direct torque control with space vector modulation method for matrix converter drives. It is possible to combine the advantages of matrix converter with the advantages of the DTC strategy by using space vector modulation algorithm of matrix converter and direct torque control strategy of induction motor. The proposed control system has been validated through simulations with...
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