上微分

In chapter 3, we establish some partial differential inequalities on bounded starlike circlar domains and the unit ball of Banach norm in C〓. Then by using these inequalities, we can get two sufficient conditions for almost starlike mappings of order α.

第三章通过在C〓中的有界星形圆形域和复Banach范数之下的单位球上建立一些微分不等式，给出了α次的殆星映射的两个充分判别条件。

Basing on analysis of TCP flow control stochastic differential equation model, this paper presents a new method to analysis queue fluctuation.

本文在分析TCP流量控制微分方程模型的基础上，提出一种新的队列波动分析方法。

By substituting stream function into differential equation, its validity is proved in mathematics and the analytical expression of helical solitary vortex function is also obtained.

将获得的流函数回代到涡与流函数微分方程中，在数学上验证了这些流函数解的正确性。

Mathematically, the miscible displacement of one fluid by another in a porous media is governed by a nonlinear coupled system of two partial differential equations, one of elliptic form for the pressure and the other of parabolic form for the concentration of one of the fluids.

数学上，多孔介质中一种不可压流体对另一不可压流体的相溶驱动由两个耦合的非线性偏微分方程描述。其中一个是关于压力的椭圆方程，另一个是关于浓度的抛物方程。

We define differential dynamic system on the tangent bundle and the master bundle.

定义了建立在切丛和主丛上的微分动力系统。

On the boundary of the mean surface of the conductor plate,the tangential component of E is coupled into the finite element equation by means of the differential of H.

借助于磁场强度H的微分，在薄导体板的均值面的边界上，电场强度E的切向分量被耦合进有限元方程，而电场强度E的法向为零的边界条件被强加。

The threshold of lithium tantalite under single-shot is found to be 1.84J /cm 2 and the avalanche rate was determined to be 1.01 cm 2 /J by calculation. We found that avalanche dominates the ablation process, while photoionization serves as a free electron provider.

在800nm飞秒激光脉冲作用下，钽酸锂晶体单脉冲烧蚀阈值为1.84 J /cm 2；在此基础上，我们通过建立钽酸锂晶体中导带电子密度演化微分方程，并数值求解，得到了钽酸锂的碰撞电离速率系数为1.01 cm 2 /J ，并得出在钽酸锂表面烧蚀中，光致电离提供种子电子，雪崩电离起主导作用的结论。

Within differential geometry are the concepts of fiber bundles and calculus on manifolds , in particular, vector and tensor calculus .

微分几何包含这样的概念：纤维束和流形上的微积分，特别是矢量与张量微积分。

The general theory of backward stochastic differential equations has been de-veloped only recently, beginning in the early 1990s.

倒向随机微分方程的一般理论只是最近才发展起来的，它始于上个世纪九十年代初。

I present in this book a wide-ranging survey of many important topics in the theory of partial differential equations, with particular emphasis on various modern approaches.

我在这本书中阐述了对偏微分方程理论的许多重要课题进行比较广泛的概述，尤其把重点放在了多种现代方法上。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。