查询词典 velocity function

Focusing on the problem of the nature of the high velocity surface acousticsmode,we investigate the standard of judging which a wave is a surface wave,present the Green function of a pseudo-SAWand a longitudinal-wave headwave,thus developing the theory for generalized Green's function of surfaceexcitation of a piezoelectric crystal,with the hope to systematize this theory.

本文围绕压电晶体半空间上的高速表面声学模式热点问题，对表面波模式进行了界定，又发展了压电晶体表面激发的Green函数理论，给出了伪表面波及纵波头波的Green函数，从而形成更完整的压电晶体表面激发理论系统。

As the cam profile with constant-velocity-constant-acceleration ramp feature and with continuous higher derivative lift feature is widely adopted in the advanced high-speed internal combustion engines, the cam ramp profile is fitted with a reasonable function and the cam-lift profile is fitted with a polynomial function.

考虑到高速内燃机的凸轮大多采用具有等加速-等速特征的缓冲段和高阶导数连续特征的工作段型式，用等加速-等速函数拟合缓冲段实测升程数据，用整体式高次多项式函数拟合工作段实测升程数据。

S: In the non-homogeneous semi-infinite medium, the shear modulus varies in the form of exponential function along the depth, by the perturbation method , the wave function solution and phase velocity equation of the Rayleigh surface waves are obtained in the paper.

对剪切弹性模量沿深度以指数函数变化的非均质半空间，本文用摄动法得到了Rayleigh面波的波函数解答及相速度方程。

It was suggested that contractility and pumping function of LV had a strong ability in reservation. 7. With increased HR, there was a decreasingly decrease in FTVI and TTVI and a significant compansatory increase in APFV、ATVI and AFF (HR＜100BPM) and in peak flow velocity (HR≥100BPM). 8. There was no differences between males and females in cardiac function.

提示心率增快造成心肌工作时间延长。6、随心率加快，心输出量及CI增加(P均＜0.001)，EF及ΔD％无变化，MVCF增强(P＜0.05及0.001)，提示左室收缩功能及泵功能有较强储备能力。7、随心率加快，ETVI及TTVI减小(P＜0.05～0.001)，其代偿方式为APFV加快，ATVI及AFF加大(P均＜0.001)，及心率快于100次/分，E、A峰融合后的峰值流速增加。8、男、女性心功能无差异。

Based on the previous study, teleseismic waveform data, observed in the West Yunnan and volcanic area, is gathered to study their S wave velocity structures by the receiver function. Underneath structure features are shown in those areas, and their geodynamical implication is also discussed. The receiver function approach and nonlinear inversion proceedings are reviewed in this paper; the basic theory of the neighborhood algorithm is also analyzed.

本文在前人工作的基础上，收集了滇西地区和五大连池以及腾冲火山区远震波形数据，开展了接收函数非线性反演研究，揭示出滇西地区以及五大连池和腾冲火山区深部结构方面的一些重要地学特征，并探讨了相关的地球动力学问题。

A new kinematically admissible velocity field is constructed. On operating with a linear failure criterion that exceeds the actual nonlinear failure criterion, the objective function formulation of the upper bound theorem leads to a classical nonlinear programming problem where the objective function, which is to be minimized, corresponds to the dissipated power.

本论文在上限定理的基础上，首次提出&切线法&与非线性&序列二次规划&优化相结合的计算方法，使在非线性屈服下求解岩土承载力或稳定性问题成为可能，为上限定理的广泛应用开辟了新的途径。

Firstly several vehicle dynamics models and tire models are analysed. Combining with the present condition and studying require, 3 dynamic differential functions about bodyworks velocity, roll and vertical displacement are gained. Furthermore based on the following rear wheel rev function and front-and-rear wheels vertical moving function, a 6-DOF, two wheels, lognitudinal dynamics model of the bus is set up.

本文首先对几种车辆动力学模型和轮胎模型进行了分析，结合现有条件和研究需要，得到关于汽车车身的速度、俯仰角和垂向位移的3个动力学微分方程，结合利用Simulink得到的前后轮垂向运动方程和将在后续研究中给出的后轮转速方程，建立了客车两轮6自由度纵向动力学模型。

The second, according to mapping function of blank and product sections, and to many interpolating functions along model-cavity vertical surface, paper has built mathematics model, fluid surface function of special-shaped product plastic deformation and velocity field, gotten basis theory for metal forming prediction, for example empty drawing metal pipe thickness homogeneity and special-shaped product fluid regular, die parameter optimization and integration research of die CAD/CAM.

根据拔制坯料和制品截面映射函数和模腔纵向多种插值函数（直线型、凸型、凹型和三次多项式型），建立了相似异型材、圆形坯料——异型材和异型材——异型材三维金属拔制塑性成形的数学模型和异型材塑性成形的流面方程及流动场方程，为预报金属成形规律（如：空拔管壁均化、异型材流动规律），模腔参数优化及其CAD／CAM一体化研究提供了理论基础。

In chapter 2, from velocity distribution function of ideal gaseous molecule, this paper deduces Maxwell's speed distribution function.

第二章从理想气体分子的麦克斯韦速度分布出发导出麦克斯韦速率分布。

The pair distribution function, the mean square displacement of melt and the normalization velocity self correlation function have been calculated.

计算了纯金属熔体Al在不同温度下的双体分布函数，平均平方位移及速度自相关函数。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。