体积含水量 meaning in English
volumetric moisture content
volumetric water content
Examples
- 3 . modification study . scaffolds were modified with alginate calcium and alcohol , 24 - hours hydrophilic test were taken in the treated between two group scaffolds with each contrasts . microstructure scanning and significant statistics were done after that
采用海藻酸钙对支架内部结构进行修饰,针对对照组、酒精处理组和藻酸钙改性组进行亲水性研究,测定24小时内各组支架体积含水量的变化。 - For parameter a , there is a close relationship exist between a ( 9 , sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture , we get the final expression of the inversion model : where mv ( t1 ) , mv ( t2 ) is volumetric soil moisture content in two different temp , c , d is soil type related parameters , and v ( t1 ) , s ( t2 ) is coresponding bare soil radar backscattering coefficients . inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40 , the soil moisture change value can be derived with an acceptable accuracy using the above model . the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover , as well as the soil hydraulic characteristics
利用最新发展的电磁波散射模型研究了不同植被覆盖地表雷达波对地表土壤水分的敏感性,建立了半经验植被雷达后向散射模型; 2 ) .研究发现在农作物等矮小植被覆盖地表,植被层直接后向散射与植被类型相关,且在植被生长期,雷达后向散射系数对植被含水量的敏感性要高于对植被高度变化的敏感性; 3 ) .解决了单参数雷达地表土壤水分反演问题中,雷达入射角和地表粗糙度的影响这一难点问题; 4 ) .利用土壤介电模型校正了不同土壤类型对反演地表土壤体积含水量的影响; 5 ) .在以上成果基础上,建立了完整的单参数雷达地表土壤水分变化探测反演算法,经地表验证,模型反演地表土壤水分变化值的精度为rmse = 0 - The unsaturated soil water movement formula is adopted for calculated the transient water content within the slope . with equilibrium method the stability of soil - nail bracing structure of unsaturated soil slope is analyzed considering the connection between the shear strength of unsaturated soil and water content . genetic algorithm is introduced for searching the minimum factor of safety of natural slope and soil - nail bracing in unsaturated soil
运用非饱和土水分子运动方程,求解降雨入渗条件下边坡土体的瞬态体积含水量,又考虑到其与非饱和土抗剪强度的关系,利用极限平衡理论推导了非饱和土边坡土钉支护整体稳定性最小安全系数f _ ( s , min )公式。 - 2 . there were statistically differences between the groups in acidity and compressive strength changing at the first 6 weeks after degradation test , mass loss and intrinsic viscosity changed significantly in whole period , volume contract happened after the 2nd week ( p < 0 . 05 ) . 3 . after modified with alginate calcium , the scaffolds have the much higher hydrophilic ability , water uptake reached 50 - 60 % ( v / v ) from 0 . 5 to 24 hours , no significant difference found between the inner groups
经过藻酸钙改性后的支架亲水性能得到良好改善,体积含水量在24小时内保持在5o朋之间,区组、组内比较无显著性差异中劝刀5 ) ;酒精处理后吸水率达到个12之间,显著高于对照组的2 10 ,区组和组内比较均存在显著性差异(卜