reference surface

According to the Coulomb-Mohr sstrength law,the regulation of unsaturated loess anti-sheer strength with the change ofexternal pressure and water content can be dipicted by using curved strength surface.

依据库伦－摩尔强度准则，非饱和黄土的抗剪强度随外部压力和含水量的变化规律可用强度曲面描述，提出了非饱和黄土强度的临界含水量计算式。

Ear Identification Method Based on Gray Surface Matching;

基于灰度曲面配准的人耳识别方法

Palmprint recognition method based on gray surface matching

基于灰度曲面匹配的掌纹识别方法

An ear recognition method based on gray surface matching has been proposed.

本文提出了一种基于灰度曲面匹配的人耳识别方法。