The average intensity and the degree of coherence of a beam reflected from a wave front inverting mirror in a randomly inhomogeneous medium are studied. The conditions for the WFI mirror to compensate for the effect of turbulence in the energy flux distribution and the coherence properties of the...
The dependence of the average intensity of the sound signal and its individual modes on the parameters of the problem has been studied: the characteristic scale of fluctuations of the interface and impedance of this interface, which determines its penetrable properties. It is shown that the ...
short-term average intensityWith the help of the extended Huygens鈥揊resnel principle and the spherical-wave short-term mutual coherence function, an analytical expression was derived for the short-term average intensity of a cosh-Gaussian beam through Kolmogorov turbulence. As special cases, the ...
Starting with a plane wave excitation limited by a circular aperture, the on-axis average intensity is presented in a turbulent atmosphere. The on-axis average intensity profile is evaluated by altering the radius of an aperture, the wavelength and the propagation distance. The results show that ...
Wave-driven fluctuations in OH nightglow from an extended source region Hydroxyl nightglow emissions arise from a region of the atmosphere several to 10 km thick centered at about the mesopause. The intensity of the nightglow I... G.,Schubert,R.,... - 《Journal of Geophysical Research Space ...
THE LOCAL AVERAGE INTENSITY METHOD USED TO DETERMINE THE EXTREME PROPERTY OF HOLOGRAPHIC PATTERN 来自 知网 喜欢 0 阅读量: 4 摘要: Based on the analysis of the change of local average inten- sity by means of a single dual exposure hologram and its longitudinal multiple reconstruction,a new ...
b. (of sound in a specified direction) the average rate of flow of sound energy, usually in watts, for one period through unit area at right angles to the specified direction. Symbol: I 4. (Geological Science) geology Also called: earthquake intensity a measure of the size of an earthq...
a适用于各种圆形木材的搬运、堆垛及装卸作业,节约劳动力,减少劳动者的劳动强度,安全高效。 Is suitable in each kind of circular lumber transporting, piles up and the handling operation, the labor saving, reduces worker's labor intensity, safe highly effective.[translate] ...
aurging 正在翻译,请等待...[translate] aThe ejection velocity imposed on the rock walls by the seismic wave is probably the single most important determinant of damage intensity in a tunnel... 排斥速度在隧道强加了给岩石墙壁由地波大概是损伤强度唯一最重要的定列式…[translate] ...
The ratio of intensities of two waves are given by4:1. The ratio of the amplitudes of the two waves is View Solution Ratio of amplitude for two wave is 1:2 .Find the ratio of intensity? View Solution Exams IIT JEE NEET UP Board ...