The change in electrical resistance of Pd -, Cu -, Ni - and Fe-base metallic glasses in tensile process and the effect of composition, cold deformation and heat treatment on the strain coefficient of resistance k, have been investigated. 本文系统地研究了Pd-,Cu-,Ni-和Fe-基非晶态合金在拉伸过程中的电阻变化以及成分、冷变形和热处理对电阻应变系数k的影响。
The effect of Al content, direct current negative bias and post treatment on the friction coefficient of the films was studied. 在此基础上讨论铝含量、直流偏压及后期处理对薄膜摩擦系数的影响。
Methods The ambulatory blood pressure of7 patients with artery stenosis was tested before and after endovascular treatment, and the coefficient of variation ( CV ) was calculated. 方法使用动态血压监测仪测量7例血管内支架置入术患者支架置入前后的动态血压值,计算变异系数。
Cold forming decreased the expansion coefficient of Fe - Ni - Ti - Al Invar alloy, while ageing heat treatment increased the expansion coefficient of Fe - Ni - Ti - Al Invar alloy. 冷加工降低Fe-Ni-Ti-Al合金的膨胀系数,时效热处理则增大合金的膨胀系数。
Radiation treatment could increase character's coefficient of variability and provide more abundant variations for selection. 辐射处理会提高性状的变异系数,增加性状的变异度,为选择提供更丰富的变异材料。