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Finding the optimal solution to the constrained l<sub>0</sub>-norm minimization problems in the recovery of compressive sensed signals is an NP-hard problem and it usually requires intractable combinatorial searching operations for getting the global optimal solution, unless using other objective functions (e.g., the l<sub>1</sub> norm or l p norm) for(More)
Finding the optimal solution to the constrained l0 -norm minimization problems in the recovery of compressive sensed signals is an NP-hard problem and it usually requires intractable combinatorial searching operations for getting the global optimal solution, unless using other objective functions (e.g., the l1 norm or lp norm) for approximate solutions or(More)
In this paper, Rayleigh wave propagation in nematic elastomers (NEs) is investigated. Characteristic equations for Rayleigh waves in the NEs are derived based on the viscoelastic theory of nematic elastomers in the low-frequency (hydrodynamic) limit. The dispersion and attenuation properties of the Rayleigh waves in the NEs are analyzed numerically. By(More)
The Reynolds Stress Model (RSM) is adopted to simulate the wind turbine wake and the simulation results are compared with the wind tunnel test data, simulation results from the standard k-ε model and a modified k-ε model. RSM shows good performance in predicting the turbine wakes velocity, turbulence intensity and the kinetic shear stress, while the k-ε(More)