查询词典 tensor density

According to by the time series estimate power spectral density\'s periodogram law principle,the research adopts five level of orbital power spectra which US Federal railway Administrative bureau FRA proposed;then,through the Fourier inverse transformation,the orbital not smooth time domain samples are obtained, which determine the track irregularity peak-to-peak value and the corresponding wave length; on the basis of the research,the influence of the wheel track dynamic contact force are considered.Based on the orbital roadbed coefficient\'s definition,computation model is established to solve the roadbed equispaced spring constant,and the roadbed uniform spring stiffness is obtained by using the numerical simulation method.Finally,based on the Matlab procedure platform,the computational procedure is established,and the load time interval caused by the moving train acts on the roadbed is obtained.

根据由时间序列估计功率谱密度的周期图法原理，采用美国联邦铁路管理局FRA提出的五级轨道功率谱，通过Fourier逆变换得到轨道不平顺的时域样本，确定了轨道不平顺的幅值及对应的波长，以此为基础考虑轮轨动态接触力的影响；基于轨道路基系数的定义建立了求解路基均布弹簧刚度的计算模型，采用数值模拟得到了路基均布弹簧刚度；最后，基于Matlab程序平台编制了计算程序，得到了运行列车作用到路基上的荷载时程。

The D and T concentrations in two samples were measured and the areal density was obtained by means of ERD method.

对两个样品用ERD方法测量钛膜中的D、T含量，获得了D、T的面密度。

This dissertation includes two parts. The first part deals with study on gas-phase reactions of metal ions with ethanethiol molecule by using the laser ablation-molecular beam method and density functional calculations. The second part describes experimental and theoretical study on VUV photoionization of some molecules using synchrotron radiation.

本论文分两大部分，第一部分介绍利用激光溅射-分子束技术研究金属离子与乙硫醇的气相反应，并用密度泛函理论研究了反应形成的团簇离子的结构和特性；第二部分介绍一些分子的真空紫外同步辐射光电离，结合量化计算分析了实验结果。

In this paper, the electroplating of bright Zn-Ni alloy process was studied, the effect of (1-hydroxy ethylidene diphosphonate acid coordinating agent, chloride content, [Zn2+]/[Ni2+] mole ratio, cathode current density, temperature, a class of aldehyde compound (abbreviated as ZNP additive agent) and supplementary coordinating agent on Ni content, and brightness of plating layer was discussed, the physical phase of alloy plating layer and stability of plating solution were determined.

研究了用有机多膦酸盐作络合剂，ZNP作添加剂电镀光亮锌镍合金，探讨了络合剂、氯化物含量、[Zn2+]/[Ni2+]比、阳极电流密度、温度、辅助络合剂对合金中镍含量的影响，测定了合金镀层中物相组成及镀液稳定性，通过筛选得出最佳最镀光亮锌镍合金的镀液组成及工艺条件，并讨论了锌镍合金的异常共沉积机理。

They will have facilitated these legions from space to penetrate the nearly impenetrable density of the evolutive Planetary Ether.

他们将从事推动这些来自空间军队几乎渗透不能通过的进化行星大气密度。

Furthermore, the index-evaluated angiogenesis has a significant correlation with microvascular density. So contrast-enhanced ultrasound can help predict prognosis and select treatment plan of anti-angiogenic therapy and exairesis et al.

同时其反映肿瘤血管的指标与肿瘤微血管密度具有较高的相关性，从而为预测预后及抗肿瘤血管生成的疗法、手术切除等治疗方案的选择提供重要的依据。

Density difference on expiratory HRCT exists in various regions of lung in healthy adults.

结论健康成人的肺呼气相HRCT上各区域间存在着密度差异。

This paper gained interference picture at with a model and distribution of jet flow density field by double exposal hologram.

研究采用激光双曝光全息干涉技术，得到马赫数M=0.6时射流场有模型的干涉图像，经过计算得到射流场密度分布。

4 Mg of the purified protein were obtained from 1 liter of bacterial culture.The results showed that rhCaM could extracellularly stimulate the proliferation of suspension-cultured cells of Angelica dahueica in the low density of initial cell culture.

每1 L菌液经Phenyl-Sepharose CL-4B 疏水亲和层析法纯化可获CaM纯品3～4 mg.rhCaM对白芷细胞增殖作用影响的研究结果表明，rhCaM在低细胞密度培养条件下对白芷细胞有促进增殖作用，效果高于标准植物CaM。

Results:There was significant difference in the density and the size of extraocular muscles between the patients and the h...

结果：患者组与对照组眼外肌径线及CT值有显著性差异，Ⅰ型甲状腺相关眼病患者眼外肌最大径线值与其T3、T4呈正相关，与TSH之间呈负相关。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。