查询词典 partial function

Firstly, based on the method of pressure-velocity coupling introduced by SIMPLE algorithm and a revised method of solving the unsteady equation of stream function and vorticity on uniform grid, a special algorithm called primitive-variable-time-dependent approach is formed in the present study. In this algorithm the Navier-Stokes equation in primitive variable form is solved by using the time-dependent approach on non-uniform staggered grid system. The second-order accuracy finite difference is used for the first and second partial derivatives of all variables of the convective terms and diffusion terms.

首先，本文在SIMPLE算法系列处理速度与压力耦合问题的思路和均匀网格下改进的关于流函数涡量方程的数值求解方法的基础上，将非定常原始变量Navier-Stokes方程的求解推广至非等距交错网格剖分，形成了具有本文特色的原始变量时间推进方法，其中对流项和扩散项中各变量的各阶导数均采用二阶精度公式，包括温度在内的离散方程组采用ADI迭代方法求解。

Its 5 years survival rate is only 38～50% and 83% of the dead is because of the failure of the local control. The partial reason is that the doctors can't well balance the relation of radical excision and conserving the function, that is they don't realize adequately the importance of the safe margin.

但其5年生存率较低，仅38～50％，在所有死亡患者中83％是由于局部复发，其主要原因是与临床医生对根治和保存功能两者的关系平衡错误分不开的，也就是说对安全边界的认识不够造成的，这就牵涉到一个合理边界的问题。

The paper prices bond and bond option, analyzing dynamic interest rate, regime-switching and option pricing. According to the affection of regime-switching to interest rate derivative pricing, the paper deduces the partial differential equation of bond pricing with Ito lemma, and obtains characteristic function and recursion equation of bond option.

从利率动态变化、结构转换和期权定价三个方面进行分析，对结构转换下的债券和债券期权进行定价，考虑了结构转换对利率衍生物定价的影响，利用Ito引理获得债券定价的偏微分方程，并得到债券期权定价的特征函数与递归等式。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function .

本文通过引入位移函数使得立方准晶的轴对称弹性问题化为求解一高阶偏微分方程。

RCP is regarded as an assistant method in deep hypothermic circulatory arrest in that it provides partial brain blood flow,maintains a low brain temperature,optimizes cerebral metabolic function during DHCA by supplying oxygen and some nutrient and removal of catabolic products;it also reduces the incidence of cerebral embolization by flushing out air and particulate microemboli from the arterial tree before the reinstitution of antegrade perfusion,thus prolonging the limitation of safety of DHCA.But brain edema probably happens to restrict the clinical use of this method.

上腔静脉逆行性灌注是深低温停循环脑保护的辅助手段，已证明在低温状态下，它为脑部提供低流量血流，维持脑部低温状态；提供部分氧和营养物质，运走代谢产物；减少气栓及栓塞的发生，从而延长了深低温停循环脑保护的安全时限，而脑水肿的危险性限制了该方法在临床的应用。

Summarily, our research showed that HMFS had important effects on beings process and activity, such as embryo development, the framework and function of CNS, and that was can't be negligible; the effect of HMFS is an result of long-term exposure; the effect of short-term exposure may be partial and revertible, or helpful to the organism at some time; long-term HMFS exposure may lead to serious negative influence.

综上所述，本研究证明，亚磁空间对生命过程和生命活动具有不可忽视的重要影响，这些影响可涉及胚胎发育、神经系统结构和功能的改变；亚磁空间的效应是长期效应；短期的影响可能是局部的和易恢复的，有的甚至可能是有益的；但长期作用有可能导致严重的负面作用。

The numerical calculation commonly used for the Delphi process more than 100, including solutions of linear algebraic equations, interpolation, numerical integration, special, function approximation, eigenvalue problems, data fitting equation Root and solve nonlinear equations, functions and the extreme optimization, statistical data description, Fourier transform spectra, solution of ordinary differential equations reconciliation partial differential equations.

本书共有数值计算中常用的Delphi子过程100多个，内容包括解线性代数方程组、插值、数值积分、特殊函数、函数逼近、特征值问题、数据拟合、方程求根和非线性方程组求解、函数的极值和最优化、数据的统计描述、傅里叶变换谱方法、解常微分方程组和解偏微分方程组。

The sensor, transducer of the sum classic compare, the integration turns the sensor, transducer of brain to have the solid measure sterigma, cost low, the work consumes the sterigma, partial velocity quick, the reliability higher -, the accuracy higher - and the function strong etc.

和经典的传感器相比，集成化智能传感器具有体积小、成本低、功耗小、速度快、可靠性高、精度高以及功能强大等优点。

By the properties of k-th order symmetric function , we obtained some estimations of integral mean value of the solutions of the boundary value problems for some kind of special partial differential equations in Dk which can be changed into Laplace equations in the unit circle by way of suitable transform .

另外，D_k上的某一类特殊的偏微分方程经过适当变换后转化为单位圆上的Laplace方程，其边值问题的解的积分平均估计可由k次对称化函数的性质较好给出。

Based on orthogonal function unfolding theory, the transverse fields can be represented as a superposition of waveguide modes. And according to coupled-wave theory, the time-dependent multi-mode coupling-wave equations (or the generalized telegrapher's equations) and the coupling coefficients among the different modes were deduced. The generalized telegrapher's equations are a set of coupled one-dimensional partial differential equations for the amplitudes of the modes.

应用正交函数的展开理论，将变截面波导中的电磁场表示为横电波和横磁波本征模式的级数；然后根据耦合波理论，推导了考虑波导金属壁有限电导率的变截面波导时域多模耦合波方程组及各模式间耦合系数的表达式。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。