turbid medium meaning in English
混浊介质
混浊媒质
Examples
- Transmission of optical radiation ; turbid media , definitions
光辐射传播.第2部分:不透明介质的定义 - As we known that the laser pulse energy will be attenuated in the turbid media and the pulse shape will be changed by scattering and absorption . besides , the ultra short laser pulse will be widened by the diffusive scattering
由于超短脉冲激光在混浊介质中传输时，将因漫散射而使脉冲展宽，因此漫反射、漫透射光中必然含有介质光学特征的信息。 - In the section 2 , firstly based on the diffusion approximation theory , the temporal characteristics of the reflectance and the transmittance were theoretically analyzed in turbid tissues ; secondly , the curves were simulated that the intensity and the pulse shape of the time resolved reflectance and transmittance versus the absorption a , the scattering s and the anisotropy coefficient g in two different boundary conditions : semi - infinite turbid media and homogeneous slab ; at last , the optical properties can be derived from the curves ; in the section 3 , the conditions of ultra short laser pulses of different pulse - width and shapes has been theoretical analyzed and calculated , besides , the simulated the curves of the intensity and pulse shapes of the reflectance and transmittance in a homogeneous slab are obtained for use and future studying
第二章中首先根据漫射近似理论对超短脉冲在以生物组织为典型的混浊介质中传输进行了理论分析，然后对两种边界条件下产生的漫反射、漫透射光脉冲强度和形状随各光学特性参数的变化情况进行了数值模拟，最后得到了混浊介质的光学特性参数与漫反射、透射脉冲强度与形状的关系曲线。第三章对不同形状和脉宽的脉冲光源入射到混浊介质中产生的漫反射、漫透射脉冲的强度和形状进行了理论分析和数值模拟，并将高斯脉冲与方波脉冲情况进行了对比，得到了各种情况的漫反射、漫透射脉冲强度、形状与各光学特性参数的关系曲线，这对从分析脉冲形状中提取介质的光学特性参数的信息有重要的意义。