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In this paper, aiming at the failure mode with MEMS spring fracture of MEMS S&A (Safety and Arming) device, the dynamic simulation and response surface method are combined to use to establish the relationship between the structure response and the structure random variables. The stress values are fitted by the least square method, and the binary quadratic equation, whose variables are the MEMS...
The current Black-Scholes option pricing model is based on the assumption that prices of assets such as stocks subject to ITO (continuous Markov process). However, the value of assets for project may not always meet this assumption. Therefore there is subjectivity and arbitrariness. Cloud model can reflect the associative characteristics of fuzziness and randomness. The reverse cloud generator algorithm...
In this paper, it is based on the theory of aerodynamics and one 1∶1 heavy-duty commercial vehicle geometry was built. The numerical simulation of the vehicle was completed by modifying the geometric model, simplifying the mesh and solving the control equations, Using computational fluid dynamics(CFD) commercial software—Ansys Fluent to complete the simulation. The theory of aerodynamic drag was obtained...
This paper proposed a method of building the rotor side power control system of DFIG. In the past works, the current control loops were turned to PI controllers and the trouble is to set the proper integral and proportional gains. By deducing the rotor side exciting voltage equations and using the S-functions, the simpler method of modeling were proposed in the paper. The performance comparisons with...
Wavelet coefficients of natural images have significant dependencies. HMT model only capture the interscale dependencies. In this paper we propose an improved HMT model, which simply model intrascale dependencies as multivariate Gaussian distribution. This model is also applied to image denoising. Experimental results show that it can provide better performance than HMT model.
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