The tissue absorbs energy, but it also appears to compensate for this loss by reradiation of energy and effective increase in the size of the transmitting antenna. 组织吸收能量,但它也显示出对这个损失的补偿,通过再放射能量并有效增加了传输信号的天线的尺寸。
Therefore, the complex pole may determine the whole behavior of the leaky Rayleigh wave, including the excitation and reradiation efficiencies. 因此,根据复极点的值可以确定Rayleigh泄漏波的整个特性,包括激发和再辐射效率。
They are caused by the reradiation of Rayleigh wave propagating along the radial surface or the longitudinal surface in the backward direction. 它们是由沿径向和纵向反向传播的Rayleigh波的再辐射产生的。
It is also proved that the reradiation efficiencies of circumferential waves are nearly proportional to the imaginary parts of the complex wavenumber poles. 也可以证明,环绕波的再辐射效率近似正比于复波数极点的虚部。
Two sorts of echoes caused by the reradiation of elastic surface wave have been observed in experimentation: the radial surface backscattering wave and the longitudinal surface backscattering wave. 实验观测到两类由弹性表面波的再辐射产生的回波:径向表面反向散射波和纵向表面反向散射波。
There are two production mechanisms of the noise: direct transfer of the convective ridge of the pressure fluctuations through the shell, and reradiation of resonance modes excited by pressure fluctuations. 存在着两种噪声产生机理:一种是压力起伏的迁移峰通过柱壳直接传递,另一种是压力起伏激励桂亮共振产生再辐射。
Since the surface temperatures of canisters are different, the reradiation in cavity will change the flux distribution on the tube outer surfaces, and the thermal emittance of the canister outer surfaces will affect heat receiver thermal performance significantly. 由于吸热/蓄热器内换热管各容器单元表面温度不同,热流通过热辐射重新分布,所以容器单元的表面热辐射率将很大的影响吸热器的热性能。
We specially prove that the reradiation efficiency and the resonance width are nearly proportional to th imaginary part of the corresponding pole for most solid objects immersed in water. 我们特别证明,对于大多数水中实弹性体,再辐射效率和共振宽度近似地正比于相应极点的虚部,这说明共振散射特性可以整个地由复频率极点确定。