查询词典 equation of a curve

In order to calculate the electric field intensities of spherical electrode s in 3-D electrostatic fields precisely, the spherical surface curve quadrangular BEM based on spherical systems is put forward.

为了精确计算三维静电场中球形电极表面的电场强度，基于球坐标变换提出了球面曲边四边形边界元方法。

With the same idea for thin film test, a method was proposed to determine the yield strength and hardening index of small volume of material by indentation loading curve using spherical indenter.

通过对小体积材料球压入过程的数值研究，获得了小体积材料基本力学性能与球压入响应间的函数关系，并据此提出用球形压头的纳米压入加载曲线确定小体积材料屈服强度与硬化指数的新方法。

Radius variation of image beam waist due to spherical aberration, which varies with the position of objective beam waist, and optical system focus is analyzed with the form of curve. At last,a design example of optical system used for laser plume attenuation testing system is given to illustrate the effect of spherical aberration on the image beam waist.

本文还提出了在设计过程中存在的球差对激光束像方束腰的影响，对其进行了理论分析，并给出了数学模型，总结出高斯光束的像方束腰半径与物方束腰位置、光学系统焦距之间的关系，并对本光学系统的设计进行了验算。

Crown is spherical, and in the air to draw a beautiful curve.

树冠是球形的，在空中画出优美的曲线。

This research uses high sensitive piezoelectric sensor for developing a sensitive sphygmograph to detect anthropic pulse and to determine parameters to diagnose physiology of human. From spectrum of pulse, the analysis processes are to determine the high pass frequency used in the analysis, uses the IIR Buttorworth filter to remove the noise, to calculate the Hermite curve for filtering the oscillation parts caused by breathe, then to calculate the parameters in strength, time and angle domains from the processed signal to study their correlation with the physiology of the studied experimenters and compared the results with the machine from the market.

中文摘要本研究采用高灵敏度压电感测元件，发展敏锐的脉搏感测仪器，量测人体手腕脉搏波形，计算其中所包含之参数来探讨与研究人体生理状况相关性的适用性；藉由分析脉搏频谱成份并使用Buttorworth滤波器过滤高频杂讯，再使用Hermite方程式去除手腕低频振动杂讯，由过滤后的脉搏讯号萃取振幅强度、波形上升与下降时间、上升与下降角度等参数，经由统计分析探讨与人体生理之情况相关性，并将所获得指标结果与市售仪器所量测之数据变化进行比较。

In the course of FEM model building, tensile test experiment is taken to work out the real stress-strain curve. Ring compress test is also done in this paper, through which the friction coefficient is worked out and the friction mechanism and relevant friction model for tube stagger spinning is studied. The experiments ensured the veracity and reliability of the FEM modeling.

建模过程中，通过材料拉伸试验测定了旋压材料00Ni12Cr5Mo4TiAlV时效钢的真实应力应变曲线；利用圆环镦粗试验测定了材料在不同润滑状态下的摩擦系数，并对强力旋压的摩擦性质和摩擦模型的选择进行了研究，确保了建模关键参数的准确性和可靠性。

Spiral surface machining. How to form slick curve from data points, define reasonable machining points, find and exclude interference and so on are solved too in this article.

解决了如何由数据点拟合成光滑曲线、确定合理的步距点、找出干涉、排除干涉等一系列求解空间刀具轨迹的关键问题，并且运用VC++、Matlab语言实现了上述算法及仿真加工过程。

Spline function is a useful and powerful tool for designing a curve or surface, which is generally used in CAGD and engineering mathematics.

样条函数是曲线曲面设计的一个强有力的工具，在CAGD和工程数学中有着广泛的应用。

The algorithm provided in this text is general and it can be expaned to other field, such as spline approximation, function approximation and the curve fitting.

本文提供的逼近算法具有一般性，可将其推广到其它领域，如样条逼近、函数逼近、曲线拟合。

Data used to be and curve tools, the use of a cubic spline interpolation methods.

用数据拟和曲线的工具，利用了三次样条插值等方法。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。