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Many scholars study bifurcation,and have some beautiful results.

本文主要对反应扩散方程中的分歧问题进行了研究。

We used NCAR/NCEPT anew analyze data and the method of bilinearity insert to fix on profile distribution of several physical field in the air on observation point and the stream field of 700hPa. We primary discussed the possible mechanism to influence aerosol size distribution.The atmospheric condition of 1000hPa~700hPa level had great influence on aerosol size distribution, and influence on coarse particle mainly below 850hPa level. The horizontal wind velocity of 925hPa level is a primary gene which contributed to coarse particles in the air. Vorticity profile especially below 700hPa level is a key gene to influence diffuse and convergence of local aerosol. The air vertical motion velocity greatly influenced aggregation and remove of aerosol particles. The vertical distribution of air temperature mainly influenced vertical transportation of aerosol.

利用NCAR/NCEP逐日再分析资料,通过双线性插值方法,确定观测点上大气中几个物理量的廓线分布;及700hPa的流场,初步探讨了影响大气中气溶胶粒子谱分布的可能机制: 1000hPa~700hPa的大气状况对气溶胶粒子谱分布影响显著,对粗粒子气溶胶的影响显著的主要集中在850hPa以下;925hPa的水平风速是影响大气中粗粒子气溶胶的一个主要因子;涡度廓线(尤其是700hPa左右及以下的涡度廓线)是影响局地气溶胶的扩散的一个关键因子;大气的垂直运动速度对气溶胶的聚合及移出影响较大;大气温度的垂直分布主要影响气溶胶垂直输送。

We use heat equation and binomial model to solve the function.

解方程式则用了热扩散方程法以及二项式模型;二项式模型用了Cox、Ross、Rubinstein所提出的CRR二元树的概念推导选择权期初价格,所得到的二项式模型极限值将逼近於布莱克-休斯模型。

Biological warfare will spread further, to the west.

生物战将会进一步扩散到西部。

A class of nonlinear two species competition singularly perturbed initial-boundary-value problems in a reaction-diffusion system in biomathematics was studies using the modern method of differential equation.

利用微分方程的近代方法研究了生物数学中一类非线性两种群竞争模型的反应扩散系统奇摄动问题。

The white carbon black formed good thermal conductivity network with the molecular chain of the rubber, and the dispersion of the white carbon black in the natural rubber matrix was improved when the surface of the white carbon black was treated with Si-69, and the thermal diffusivity of the rubber was improved greatly.

白炭黑在Si-69的表面改性作用下,能与胶料分子链形成较好的导热网络结构,使其在天然橡胶基质中的分散程度得到改善,从而使胶料的热扩散系数得以提高。

It is done to see if the cancer has spread to the bladder.

这是做了,看看是否患癌症已扩散到膀胱。

She took no comfort in the fact that the more it expanded the less she would weigh, like some kind of blimp.

在这样的现实面前她一点都不乐观,癌变扩散越广她身体越轻直至象只气球。

Then we review the progress of the kinetic spin Bloch equation on the spin relaxation/diffusion.

然后我们回顾了使用动力学自旋Bloch方程在自旋弛豫/扩散方面的研究。

The one-way coupled map lattices and initial condition generation function based on iterative Logistic map are used to realized the data confusion and diffusion between plain-text and key information. And the cipher block chaining mode is used to generate the 128-bit Hash value for plaint-text with arbitrary length.

该方法通过使用单向耦合映射格子和基于迭代Logistic映射的初始状态生成函数实现明文和密钥信息的混淆和扩散,并基于密码块连接方式产生任意长度明文的128位Hash值。

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。