For the first time, two kinds of the noughness on the junction surface are obserned, which have the transverse correlation length of 30-70nm and 3-5nm, respectively.
The existance of this surface roughness with the transverse correlation lenghth of 30 50A is coincident with the theoretical predication of Laks and Mills.
For the first time, they found that there were two kinds of the roughness on the junction surface, which have the transverse correlation length of 500 700A and 30 50A, respectively.
The existanoe of this surface roughness with the transverse correlation length of 3-5 nm is in agreement with the theoretical predication of Lake and Mills[2],
Annealing at 450 oC,the appearance of new satellite reflection in low-angle x-ray diffraction (XRD) patternsindicates the improvement of the lateral correlation at interfaces through annealing.
The extracted values of 3 surface parameters i.e., the roughness w, lateral correlation length ξ, and roughnessexponent a are in good accordance with the set values.
Correlation analysis showed that the time-series load data of a boiler plant could be classified into two categories, right-and-left and pre-post series. In building up the CNN model, the former could thus be the input data to the first BP network and the latter be the input data to the second one.
Chapter 3 gives a method of image speckle contrast for the non-precalibration measurement of the root-mean-square roughness and the lateral correlation length of random surfaces with Gaussian correlation. Based on the Gaussian correlation model of random surfaces and the fundamental theories of statistical optics, we obtain the expression of image speckle contrast in the 4 / optical filtering system.
The measured parameters of the scattered waves are used to estimate the degree of transverse correlation between the vortex wakes formed behind the cylinders for flows with different Reynolds numbers.
The transverse correlation radius of the scattered field amplitude is determined, and its value is used to estimate the correlation scales of inhomogeneities in the bubble layer.
With regard to the transverse correlation function we find a change from aR-3/4 to aR-1/2 behavior if the correlated spins move away from the boundary at fixed mutual distanceR.
The optical field at the exit end of multi-mode fiber is treated as a quasi-homogeneous source, while that of single-mode fiber is treated as homogeneous partial coherence source. The second-order statistical correlation function and angular correlation function are used to analyze the correlation properties of the exit end and the near and far field of optical fibers. The transverse and angular coherent lengths and the optical intensity distribution parameters have been obtained. The theoretical results ar...
Develops a method to calculate the skin friction loss in incompressible turbulent boundary layer in the flow passage of a centrifugal fan's impeller. It takes account of all the effects of rotation, bending and secondary flow,and integrates the movement differential equation by substituting directly the velocity profile into .the equation instead of introducing Karman's momentum equation. Thus,a system of equations is obtained including two independent unknowns,i, e. wall-surf ace skin friction parameter A ...