查询词典 sampling fraction

We treat the superconductivity electron as Brownian motion particle in period potential, by using matrix continued fraction method. We solve the corresponding Fokker-Planck equation of electron and obtain the Voltage-Current Characteristics of Josephson Junctions with thermal fluctuations.

我们将超导电子视作在其位相形成的周期势场中作布朗运动，并利用矩阵连分法求解相应的Fokker--Planck方程，得到Josephson结在热涨落存在时的Ⅰ-Ⅴ特性曲线，计算结果与实验相符合。

In this thesis, a semi-classical model of the force on an atom is used to describe the motion of a two-level atom interacting with a standing wave laser field. The velocity dependent force and momentum diffusion are derived through optical Bloch equations by using the matrix form of the continued fraction technique. By investigating the dynamic properties of atoms in laser field, we can control and manipulate the mechanical motion of an atom.

本文利用半经典理论，从二能级原子在激光驻波场中所满足的运动方程出发，推导出密度矩阵元所满足的递推关系，利用矩阵连分数方法求解出密度矩阵元，从而求出依赖于原子运动速度的光压力与动量扩散系数，通过讨论原子在激光场中的动力学行为，为原子在激光场中被囚禁、形成原子列阵以及可控制的量子态，从而为量子信息处理提供理论基础。

Luoxia Hong arithmetic is 600 years earlier than the similar method put forward by the Indian mathematics and is 1600 years earlier than the theory of continued fraction put forward by the Italian mathematics.

落下闳算法比采用类似方法的印度数学家爱雅哈塔早600年，比提出连分数理论的意大利数学家朋柏里早1600年，它影响中国天文数学2000年。

Several important matrix function such as e〓, log (1+A), cos (1+A) and A〓 are approximated via truncated matrix continued fractions, and the error bounds associated with the continued fraction approximants of these matrix function are given.

在第六章，我们研究了矩阵函数的数值计算，我们给出了几个比较重要的矩阵函数如e〓，log（1+A），cos与A〓的连分式逼近算法，并给出了各自的误差分析。

The cubic interpolation polynomial is got firstly in the given sub-range of the hydrophone's sensitivity-frequency curve by using the Akima curve smoothed algorithm, and the maximum of the polynomial is calculated in the sub-range by using the one dimension extreme value continued fraction algorithm, finally the frequency of the hydrophone is got.

频率测试是在灵敏度详细测试的基础上，采用阿克玛曲线光滑算法求出检波器幅频特性曲线在给定子区间上的三次插值多项式，再利用一维极值连分式法求出该区间上多项式的极值，从而求出检波器的频率值。

In our work, a new continuous thermodynamics method for petroleum fraction phase equilibrium calculation has been proposed, in which true boiling point distillation curves for petroleum fractions were considered to be a continuous distribution function and the distribution variable was TBP temperature, and at the same time, a spline method was used in the distribution function calculation.

在以上工作的基础上，建立了具有普遍实用性的常压塔精馏计算的数学模型，并对多个工业装置进行了实际的模拟，模拟结果与装置的实际情况符合良好，在预测塔的抽出温度，抽出产品的性质，以及各个侧线产品收率等方面都得到满意的结果。

If we can s connect these segments to make a long roll of films, every fraction is a still. If we have strength to make them move, they will form a continuous image world.

如果我们可以把这些片断连接成一串长长的胶片，那么每个片断都是一幅静帧，如果再有力量使它转动起来，它们就是一个连续的影像世界。

The above parameters and their corresponding crank angles show the higher inter-dependency with the increase of hydrogen fraction at lean mixture operation.

在化学计量比或浓燃时，掺混氢气可以维持平均指示压力的循环变动系数在较低的水平。

Corresponding points refers to two points or particles that have completed identical fraction s of their periodic motion.

对应点」是指处于相同相位的点，即完成了一个整周期运动的两点。

Thus, we feel that our crawler captured a representative and significant fraction of the set of peers.

从而可以说明我们的crawl捕获相当数量的用户，并具有相当的代表性

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。