1) structural constant
结构常数
1.
In this paper, we introduce the concepts of structural constant and the cube matrix formed by those constants of finite algebras and coalgebras: Assume αl,α2,.
本文引入有限维代数及余代数的结构常数及由结构常数构成的立方阵的概念：设α_1，α_2…，α_n是某n维代数 A(余代数 C)的一组基，且α_iα_j=(sum from k-1 to n)μ_(ij)~kα_k(△(α_k)=(sum from ij)μ_(ij)~k(α_i α_j)) 则称μ_(ij)~k为代数 A(余代数C)的结构常数；由这些结构常数可构成一n×n×n立方阵。
2) fine structure constant
精细结构常数
1.
It is found that the fine structure constant α=c is alterable rather than a constant.
最近实验显示精细结构常数α=2e c是可变的,e,,c3个量中哪一个改变而导致α改变是当前难题之一。
2.
Recent observations suggest that the fine structure constant α=e 2/(4πh c ) varies in the early Universe.
最近的观测表明在早期宇宙精细结构常数 α=e2 /(4 πh-c)是变化的 。
3.
The fine structure constant α is of deep going physical essence, and it is a very important physical constant for understanding new meaning of quantum mechanics.
精细结构常数α具有深刻的物理本质 ,它是理解量子力学新意义———曲率解释的一个极重要的物理常数。
4) refractivity structure constant
折射率结构常数
1.
Proposed is a theoretical model for evaluating the vertical change in the refractivity structure constant C 2 n and energy dissipation rate ε of turbulence based on convertional soundings from Nanjing and Sheyang.
用南京、射阳的常规探空资料建立了估算折射率结构常数Ｃ２ｎ和湍能耗散率ε垂直变化理论模式。
5) Refractive index structure parameter
折射率结构常数
1.
Experiment verification of numerical model of atmospheric optical refractive index structure parameter;
一维大气边界层光学折射率结构常数数值模式的实验检验
2.
Numerical model of atmospheric optical refractive index structure parameter;
一维大气边界层光学折射率结构常数的数值模式
3.
By three lasers with wavelength of 473 nm, 532 nm and 671 nm, the TWLS system can simultaneously measure refractive index structure parameter and inner scale of atmospheric turbulence.
研制了一种便携式三波长激光闪烁仪,使用473 nm、532 nm和671 nm三个波长实现了大气湍流内尺度和折射率结构常数的同步测量。
6) refractive index structure constant
折射率结构常数
1.
Mesoscale weather forecast model MM5,its flow chart and coordinate system are introduced;based on its result with Dewan optical turbulence parameterization, 48 hours refractive index structure constants of Hefei,Kuerle and Dongshan are forecasted,and turbulence profiles of every time record and profile charts of refractive index structure constant are shown.
简要介绍了中尺度天气预报模式MM5及其框架和坐标系统,并结合Dewan光学湍流参数化方法预报了合肥、库尔勒和东山48 h的折射率结构常数,给出了各个时刻的湍流廓线和折射率结构常数时间剖面图。
2.
Through theoretical analysis and numerical simulations,it has been proved that the refractive index structure constant and altitude are the most important factors to affect beam bending.
大气对战术激光造成的光束偏转将使战术激光脱离目标,通过对光束偏转的理论分析和仿真研究,结果表明折射率结构常数和离地面高度是影响光束偏转的重要因素。
3.
Based on the aperture averaging effect of the scintillation effect of light propagation,a large aperture laser scintillometer(LALS)for measuring the refractive index structure constant of atmospheric turbulence was developed.
基于光闪烁的孔径平均效应,研制了测量大气折射率结构常数的大口径激光闪烁仪(LALS)。
补充资料：结构常数
结构常数
structure constant
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参考词条