1) wave drag coefficient
波阻系数
2) thickness wave drag coefficient
厚度波阻系数
1.
Calculation of thickness wave drag coefficient for hypervelocity sweepback space debris;
超高速后掠飞片的厚度波阻系数计算
3) wave friction factor
波浪底摩阻系数
4) Wave Making Damping Coefficient
兴波阻尼系数
5) piezoresistance coefficient
压阻系数
1.
The comparison of two group Yb film sensors,one is unheated treatment and the other is heat treatment at 300 ℃ for 1 h in vacuum,indicates that the piezoresistance coefficient of the heated film is larger than not only the unheated,but also the Yb foils.
采用真空蒸发工艺制备镱薄膜传感器,在小于1GPa压力范围内对未经任何处理和300℃真空热处理1h两组镱薄膜传感器进行准静态加载标定,后者的压阻系数明显高于前者,并且大于箔式镱传感器的压阻系数,结合扫描电镜和电学性能测试分析,发现热处理有助于薄膜晶粒长大,降低薄膜电阻率,从而提高了镱薄膜传感器的压阻灵敏度。
2.
Although the film was the same metal construction feature as manganin alloy does,it has smaller crystalloid size,twice resistivity and less piezoresistance coefficient than the alloy.
但是 ,锰铜镀膜的结晶晶粒度与工业生产的锰铜合金还有较大差别 ,宏观物理量表现为 :电阻率偏高 ,冲击压阻系数偏小。
6) resistance factor
阻力系数
1.
According to the present experiment results,the precision of all calculation correlations for resistance factor in transition zone and laminar zone was compared.
根据已有的实验结果,分析比较了过渡区和层流区各种阻力系数模型计算的准确性,以及各流型之间过渡时的基本变化特征。
2.
25 μm~2 by using an injecting procedure fresh water (TSD=729 mg/L)-gel-produced or fresh water with total volume injected >5 PV, the resistance factor, F__R, determined is in range 266.
用大庆采油二厂的污水(矿化度4013mg/L)配制不同HPAM浓度的Al3+交联聚合物凝胶,在气测渗透率1 25μm2的人造岩心上,按清水(矿化度729mg/L)—凝胶—污水或清水的注入程序,注入量>5PV,测得凝胶中HPAM浓度为0 6、0 5、0 4g/L时,残余阻力系数FRR(368 6~277 4)大于阻力系数FR(266 7~246 0),二者均随HPAM浓度减小而减小;后续注入清水时FRR较低;凝胶中HPAM浓度为0 3g/L时FRR
3.
This paper has studied the convergence of iteration algorithm for colebrook s formula which has been used to determining the resistance factor about industrial pipes in three regions of turbulent flow resistance (i.
本文研究了适用于工业管道紊流三个阻力区(即光滑区、过渡区和粗糙区)阻力系数计算的柯列勃洛克公式迭代算法的收敛性,给出了收敛区间。
补充资料:厚度切变振动机电耦合系数
分子式:
CAS号:
性质:表示压电振子厚度切变振动时,机械能与电能之间相互转换的能力,通常用K15表示。可用下式计算求得:式中,ε11T为自由介电常数;ε11S为受夹介电常数。
CAS号:
性质:表示压电振子厚度切变振动时,机械能与电能之间相互转换的能力,通常用K15表示。可用下式计算求得:式中,ε11T为自由介电常数;ε11S为受夹介电常数。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条