非公式的

The algorithm improves performance by modified extrinsic and channel information of traditional MAP to suit additive white Class A noise.Simulation results show that the proposed algorithm has better performance than traditional MAP algorit...

该算法修正传统MAP算法的外部信息和信道信息计算公式，使之适应非高斯的ClassA脉冲噪声环境，从而改进了译码性能，计算机仿真证明新的译码算法在Class A噪声环境中比传统MAP算法具有更好的性能。

Since it was not easy to attach measuring devices to a projection of an invisible axis,an indirect measurement method was put forward including restrictions when the formulas were used.At last,a measurement process was introduced by means of the FNCA non-contact wheel aligner.

由于在不可见的转向轴线平面投影图上无法安装测量装置，因此可以利用推导出的计算公式间接测量后倾角和内倾角，同时阐明了使用这种测量方法必须遵守的限制条件，并以FNCA型非接触式车轮定位仪为例简单介绍了转向轴线几何参数的测量过程。

Introduces the concepts of available anergy and reduced exergy by analysing the energy utilization process.

对碰撞问题进行了一些教学上的探讨，把文献 [2 ]-[6 ]关于对心碰撞情形机械能损失的公式推广到两体非对心碰撞的情形，引入折合质量的概念对结果进行简化。

This paper introduces a recurrence formula for estimating the variances of errors of a sequence forecasted by an autoregression model and gives two examples under both smooth and nonsmooth conditions.

讨论了自回归模型的预测误差的方差估计问题，给出了详细的递推计算公式，并给出了平稳序列与非平稳序列的例子各1个。

Based on the theory of mechanical energy conservation,a compressible non-Newton fluid flowing ordinary differential equation on pressure is found by deducing and simplifying the academic formulas with considering the pressure gradient of acceleration,consummating the state equation of foam by using Berthelot second virial coefficient,and logical assumptions.

基于机械能守恒原理，考虑加速度压力梯度项，以Berthelot第二维里系数完善了泡沫流体的状态方程，结合了合理的假设，通过对理论公式推导和化简，得到了非牛顿流体可压缩流动的关于压力的常微分方程。

And the formulae for estimatingthe edge-toughness of Cartesian product and Kronecker product of some special graphs are presented.

证明了一类r-正则r=κ′连通非完全图G的边坚韧度近似等于r/21+(1/│V│-1并且提供了估计一些特殊图类的笛卡儿积和Kronecker积的边坚韧度的公式。

Based on this, to avoid using the Green′s formula on infinite domain, an infinitely differentiable function with compact subset is constructed and some important results to a especial solution of the inhomogeneous field equation are obtained.

在此基础上，为了避免使用无限区域上的 Green公式，通过构造紧支集上的无穷可微函数，获得满足非齐次控制微分方程的特解的重要结果。

The non-relativistic energies and wave functions were determined by Rayleigh-Ritz method. The relativistic effects, including the correction to kinetic energy, the electron-electron contact term, and the orbit-orbit interaction, Darwin term, and mass-polarization effect on the energies were calculated by using first-order perturbation theory. In order to obtain a more accurate result for the larger Z system, the quantum-electrodynamics correction should be included. This correction to energy can be evaluated for the valence electron by using a hydrogenic formula with an effective nuclear charge, Z. The ionization potential, the excitation energies and the fine structure split-tings for a lithium-like ion with higher nuclear charge (Z=26) were calculated.

非相对论能量用Rayleigh-Ritz变分法确定，包括动能修正、电子—电子接触项、轨道—轨道相互作用项以及Darwin项的相对论修正和质量极化项由全实加关联波函数的一阶微扰给出，量子电动力学修正由有效核电荷方法和类氢公式计算；给出了较高核电荷(Z=26)类锂体系1s^2nl组态的电离能、激发能和1s^2np组态的精细结构劈裂。

Remove row and column' and 'put a big number' have been used for the first boundary;a continuous Regional Identification Function is used on the basis of non-variant nodal virtual flux method for the free surface boundary;Gauss formula is used to make the curved surface integral of the free surface boundary transformed as the difference between volumn integral and other curved surface integral to calculate the integral item on boundaries, which avoiding finding the position of free surface, while the continuous Regional Identification Function is applied to calculate volumn integral and surface integral;Crout and PCG method is used for solusion.

对于已知水头边界，采用"去行去列法"和"置大数法"进行处理；对于自由面穿过的单元，在固定网格节点虚流量法的基础上，引入连续的区域识别函数；对于非稳定渗流中自由面边界积分项，采用高斯公式将求自由面的面积分转化为求体积分与其他面积分之差，避免了求自由面的具体位置，同时在计算体积分和面积分时采用连续的区域识别函数；在解法上，采用直接解法和PCG法。

The hot intensity of the heat insulation parts is analysized by the finite element method.

论述了低散热发动机在特种车辆上应用的意义及研制存在的困难；分析了低散热发动机的传热特点，运用经验公式确定了传热边界条件；分析了非稳态导热有限元计算的特点，运用有限元法对隔热部件进行了热强度分析。

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。