查询词典 frequencies

It enables one to count the number of frequencies exceeded by a given trial frequency. On the basis of the method. Professor Qi has got a new criterion for detecting the eigenfrequency by using the physical meanings of the matrix used in the congruent transformation of the dynamic stifmess matrix.

在此基础上，齐朝晖教授充分利用将结构动刚度矩阵合同变换过程中各矩阵的物理含义，提出了求解结构固有频率的新判据。

These new findings are important for improving induction and conversion frequencies in conifer somatic embryogenesis.

因此，这些新的研究成果对于改善松柏类植物体细胞胚胎发生中的胚的诱导率和转换率低的现象具有重要的意义。

The short tandem repeats is a kind of DNA sequence formed repeatedly and connectively subjected to a core unit of several base pairs.The non-interfered multi-PCR was applied with 3 loci in the same reaction system.By using the technique of denaturing polyacrylamide gel electrophoresis and silver stain,the allele frequencies distributions of 3loci:F13A01,FESFPS and vWA in 10 minority populations only resided in Yunnan Province:Bai,Dai,Achang,Jingpo,Deang,Lahu,Bulang,Hani,Pumi and Jino.A satisfactory result was obtained and some significant genetic differences were noticed in different populations.

短串联重复序列是由几个碱基对作为核心单位串联重复形成的-类DNA序列，应用3个位点在同一反应体系中进行互不干扰的多重PCR，采用高分辨力的聚丙烯酰胺凝胶电泳分离、银染法显影技术，对云南省特有的白族、傣族、阿昌族、景颇族、德昂族、拉族、布朗族、哈尼族、普米族和基诺族等10个少数民族的F13AO1、FESFPS和vWA3个位点等位基因的基因频率分布进行了调查，获得了满意的结果，在不同群体中发现一些有意义的遗传差异。

The structure feature of the sensor was described in comparison with the classical Stewart platform-based six-component force sensor.By using the finite element method,the elastic dynamics theoretical model of the sensor was established based on the conditions of displacement consistency and force balance.According to this model,the numerical analysis was carried out,and the variety relationship curves between the natural frequencies and the structural parameters are plotted.

描述了该传感器相对于经典Stewart平台六维力传感器所具有的结构特点；利用有限元法，采用位移协调和力平衡条件建立了传感器弹性动力学理论模型，依此模型进行数值分析，绘制了固有频率与各结构参数间变化关系曲线；并利用ANSYS软件建立了传感器有限元模型，进行了振动模态分析，得到其固有频率和振型。

After a power spectrum is constructed, empirical wavelet coefficients are used to detect the jump points in the function to obtain the strong consistent estimator of the position and number of the frequencies. Numerical simulations show this method is reliable.

根据它们的协方差函数可以表示为一个Fourier级数，而其Fourier系数可通过协方差函数的逆变换得到的特性，我们对于零均值的近周期相关序列构造了类似于周期图的函数，并构造其经验小波系数，利用频率处于此函数的尖点的特性，以及此性质在经验小波系数中的反映，来确定频率的个数和位置，所有的估计量都是强相合的，此外，数值模拟的结果表明，我们的方法是有效的。

First,the planar waveguide models for Rotman lens and its feed lines which incorporate the dispersion effect with frequencies are set up.Then the aperture electric fields at lens ports are expanded by appropriate waveguide mode functions and substituted into the contour integral equation.The multimode scattering matrix of the lens can be acquired by solving the contour integral equation by using Galerkin method.

首先建立了考虑色散效应的透镜的等效平板波导模型，然后选择适当的波导模式函数展开透镜端口上的场，并利用Galerkin法求解其边缘上电场满足的轮廓积分方程即可得到透镜的多模式散射参数。

Based upon the proposed approach the free vibration analysis of Euler beam with various typical boundary conditions is performed and the error and convergence behavior of the fundamental and second frequencies are studied in details.

针对常见的几种典型边界条件的Euler梁自由振动问题，详细分析了前两阶频率的误差和收敛性。

Because the main frequencies of generator floor and bus bar floor are in the range of earthquake, so their convulsionary reaction is obvious.

结果表明，对于发电机层和母线层的楼板，其地震反应仍以竖向振动为主，对于风罩，以机组段纵向为主。

IH induced enduring increments in frequencies of autogroog, paw lifting, and vocalizing, and was associated with incidents of coprophagy and repetitive behavior.

实验分两个阶段，首先让犬群居在宽敞的有户外运动场的犬舍，然后让犬独居在小犬舍里，其间分别测定不同时期行为学和生理学参数。

The melting is done by raising the frequencies of light to the level of Solar Aqualene Light energy, Cosmic Energy and Star Dust Energy.

熔化是通过提高频率的光的水平太阳能Aqualene光能，宇宙能量和星除尘能量。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。