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An analytical model of the dynamic characteristics of an axially polarized multilayer piezoelectric/elastic composite cylindrical transducer is proposed in this paper. Based on the plane stress assumption, the dynamic analytical solution of the transducer under an external harmonic voltage load is obtained, and the electric admittance is also derived analytically. Inherent properties of the transducer,...
This paper presents accurate electromechanical analysis of piezoelectric beam-type transducers with interlayer slip, based on the Euler??Bernoulli beam theory. The closed solutions of two different kinds of piezoelectric beam-type transducers under external harmonic loads are derived. The effects of the interfacial slip parameter on the responses of the transducers are discussed. Comparisons with...
A new method of parameters design for aerial survey based on the laser footprint distribution of airborne LiDAR was proposed. In order to implement the method of parameters design, the relationship maps between the distribution of laser footprints and different parameters, respective the parameters of laser beam, flight and laser scanning system were created. Using the actual parameters and the independent...
In order to address the problem of time constraints in the complex workflow system, in this paper temporal reasoning and simplification analysis of fuzzy timing Petri nets are proposed. Firstly, fuzzy temporal reasoning method of three basic workflow patterns based on fuzzy timing Petri net is presented, so that the total time delay formula for each pattern is obtained. Then, the simplification method...
The previous works describing the generalization ability of learning algorithms are based on independent and identically distributed (i.i.d.) samples. In this paper we go far beyond this classical framework by studying the learning performance of the empirical risk minimization (ERM) algorithm with Markov chain samples. We obtain the bound on the rate of uniform convergence of the ERM algorithm with...
This paper investigates the local stability of impulsive CNNs with time-delay. Using Lyapunov functions and a generalized Halanay inequality, several conditions guaranteeing the locally exponential stability of equilibrium of system are established. An example is given to illustrate the effectiveness of our results.
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