Measuring method for particle - size distribution of dusts in flue gas 废气中灰尘粒度分布的测量方法
Standard test methods for particle - size distribution gradation of soils using sieve analysis 使用筛分法测定粒度分布
The relationship of soil particle - size distributions and soil water retention characteristics , saturated and unsaturated hydraulic conductivity were studied in the lab 本研究对陕西四种不同质地土壤的粒径分布与水分特征曲线及饱和、非饱和导水率的关系进行了研究。
It can be use as a parameter to describe the variety of soil texture . 3 . on the basis of the a & p model , soil particle - size distributions and soil bulk density data is translated to soil water retention characteristics A & p模型得出的四种土壤的水分特征曲线,在低吸力范围段可以较好反映土壤实际的土水势与含水量之间的关系。
Soil particle - size distributions fractal dimension is correlative with other texture parameters . the dimension is clear line - relative with clay content and geometric mean diameter , but the line - relationship between the dimension and index of uniformity is low . the dp is sensitive to the variety of soil texture 在理论上也进一步指明了粒径分布维数的物理意义,即:粒径分布分形维数d _ p的范围为0 3 ,其大小反映了不同质地土壤颗粒的填充能力。
The particle-size distribution (PSD) of a powder, or granular material, or particles dispersed in fluid, is a list of values or a mathematical function that defines the relative amount, typically by mass, of particles present according to size.Jillavenkatesa A, Dapkunas S J, Lin-Sien Lum, Particle Size Characterization, NIST Special Publication 960-1, 2001 PSD is also known as grain size distribution.