diffusion radiation

The main natures of the diffusion are universality, inevitability, non-linear and other properties. The main diffusion approaches are string diffusion, radiation diffusion, polymer diffusion, reverse diffusion feature and so on. 3.

气象灾害风险扩散的主要方式有串型、辐射型、聚合型、逆向型等几种，具有普遍性、必然性、非线性等特征。3、研究揭示了气象灾害风险的扩散机制。

The steady-state and time-domain analytical solutions of the diffusion equation for near-IR radiation through a four-layered highly scattering matched medium have been obtained. The matched boundary condition and the extrapolated one have been considered.

根据匹配边界条件和外推边界条件，得到了近红外线通过四层高散射匹配介质的稳态和时域漫射方程的解。

P 2 diffusion theory of radiation transfer problems

辐射传输问题的P2扩散近似

Study on Atmospheric Diffusion Parameter of Radiation Fog in Anning City, Yunnan Province

云南安宁市辐射雾大气扩散参数研究

The methods and modules which have good application experiences are adapted for source term estimation, the computation of atmospheric diffusion and radiation dose, analysis of emergency measures. The system interface is user friendly.

源项估计、大气扩散与辐射剂量计算以及应急防护措施分析采用国内外具有良好应用经验和反映当前应急干预原则要求的方法和模块，系统界面的设计强调评价流程的逻辑结构和用户友好性。

Coupling transport-diffusion method of calculating radiation transfer in a cavity

空腔辐射传输的扩散－输运耦合计算