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For the real engineering situation that the proportional-integral-derivative control law (PID) may not adapt to the non-minimum phase system property of hydro turbine set efficiently, a new non-minimum phase system control strategy of hydro turbine set is proposed. Firstly, a three order differential equations set of hydro turbine set is established according to the nonlinear hydro turbine model given...
The current works about task scheduling with deadline-constraint in homogeneous environment rarely take the differences of Map and Reduce task and data locality into account in the same scheduler. To address this problem, we introduce a scheduling algorithm that Map and Reduce are regarded as two separated stages of scheduling problem in homogeneous environment. For the sake of realizing this algorithm,...
In this paper, we propose a multi-stage feature selection algorithm, which focuses on the reduction of redundant features and the improvement of classification performance using feature ranking (FR), correlation analysis (CA) and chaotic binary particle swarm optimization (CBPSO). In the first stage, with the purpose of selecting the most effective features for classification, FR is introduced to...
Video surveillance is becoming more and more significant in the detection of abnormal events for public security. As a usual kind of crowd activity mode, the research on the motion analysis of small groups is under increasing attention. This paper presents a particle video-based abnormal behavior detection method of small groups. First, use a particle tracking algorithm to obtain the video stream...
This paper reports the design and fabrication of T-shape vector hydrophone based on MEMS inspired by fish lateral line. Based on the analysis of mechanical properties of T-beam, the design and fabrication process of microstructure are described in detail, and then the characteristics of the microstructure are analyzed by the ANSYS. The first-order resonance frequency is 1970Hz, and the position of...
Based on the verifiable encryption and zero-knowledge proof protocols of Jarecki and Shmatikov and Pedersenpsilas verifiable threshold secret sharing scheme, this paper proposes a new full fair secure two-party computation protocols. For getting full fair, the new protocol employs a group of third-party servers. We prove that when more than two-thirds of the third-party servers are honest, the new...
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