反常子

The QED runningcoupling constant α and the anomalous magnetic moment of muon 〓 are twofundamental quantities for the precision test of the Standard Model.

在标准模型精确检验问题中，QED精细结构常数〓和μ轻子的反常磁矩〓中强子的贡献，只能用唯象的色散理论，将夸克贡献"转化"为强子，通过〓湮灭到强子末态的实验数据的积分计算得到。

With the J/y anomalous suppression as a signal of QGP phase transition, on the basis of absorption of nucleons and comovers, the differential cross section of J/y production in high energy heavy ion collisions under the condition of the occurrence of phase transition is derived out, and the experimental data of NA50 collaboration in Pb-Pb collisions at 158A GeV/c is analysed.

以J/y反常抑制现象为夸克-胶子等离子体相变信号，在核与随动者吸收理论的基础上，导出了有相变产生时高能重离子碰撞中的J/y微分产生截面，并对NA50合作组给出的入射动量为158A GeV/c的Pb-Pb碰撞中的实验数据进行了分析，较好地解释了实验结果。

And we show that random walk model converges to the stable law of Lévy-Feller advection-dispersion equation by use of a properly scaled transition to vanish-ing space and time steps,We propose an explicit finite difference approximation for Lévy-Feller advection-dispersion equation.

第三章讨论描述服从某种稳定分布反常扩散的非对称空间分数阶对流-扩散方程——Lévy-Feller对流-扩散方程，首先利用Fourier变换和Laplace变换给出方程的基本解，然后利用Grünwald-Letnikov分数阶导数移位离散算子离散方程中的Riesz-Feller分数阶导数得到离散格式，证明此格式可以解释为离散随机游走模型，并且证明了当时间和空间步长以一定的比率同时趋于0时，所提出的离散随机游走模型收敛到Lévy-Feller对流-扩散过程的稳定分布。

The result shows that, in the case of low power, it is important for the chirp to form the soliton and transmit in the abnormal and zero dispersion area, but it's bad for the pulse's transmission in normal dispersion.

结果表明，较低功率时，反常色散区和零色散区，初始啁啾对于孤子的快速形成和传输具有重要的作用，而位于正常色散区时，啁啾破坏了脉冲形状，不利于脉冲的传输。

The results show the dispersive curve of one-dimensional photonic crystals have the normal dispersion in the transmitted bands and abnormal dispersion in the band gaps which is similar with that of elastic electronic dipolar.

结果表明一维光子晶体的色散曲线与弹性电偶极子的经典色散曲线类似，在光子晶体的导带为正常色散，而在禁带呈现反常色散。

Based on introdued briefly the non-linear spece and its field equation solution, this article, using the concept of soliton as a example, combining with some problems in molecular evolution and the research on biological macromolecular struc- ture and function, put special stress on discussing the non-linear problems of biosystem at molecular level, and computed fractal...

在生物科学迅速发展的今天，非线性理论中的分岔、湍流、孤子、混沌以及非线性相互作用与反常涨落，非线性相互作用与突变等等的研究，已经与生物学没有找到相关文章！点击下列相关研究机构和相关文献作者，可以直接查到这些机构和作者被《中国知识资源总库》收录的其它文献，使您全面了解该机构和该作者的研究动态和历史。

The numerical results show that the amplification of optical solitons is unstable in the anomalous dispersion regime.

数值计算结果表明：在反常色散范围内，光孤子的放大是不稳定的。

The existence ofpolar nanoregions dramatically influences the extrinsic dielectric nonlinearityof paraelectric phase. 5 Slow relaxations of field induced piezoelectricresonance of paraelectric barium stannate titanate were observed after eitherapplying or removing a DC bias field. This phenomenon is attributed to slowspace charge dipoles formed by injected homocharges and validated by theobservation of a negative piezoelectric constant. Isothermal study ondielectric constant and discharging current after application or removal of astep field were performed. The relaxation laws in ferroelectric andparaelectric phases are different. The transportation of homocharges arebelieved to be responsible for the strong relaxation behavior in paraelectricphase. Domain wall can trap space charges thus the relaxation in ferroelectricphase is relatively weak. Abnormal phenomena, such as slim-waisted hysteresisloops, abnormal C-V curves and clockwise reversible hysteresis loops observedin barium stannate titanate ceramics, were attributed to pinning of gatheredpoint defect on domain walls.

5研究了直流电场施加和撤除引起的钛锡酸钡顺电相场诱压电谐振慢弛豫现象，认为这是同极性空间电荷注入形成空间电荷慢偶极子导致的，观察到的负压电常数证实了这个观点；研究了等温条件下阶跃电压作用下介电常数和放电电流的慢弛豫现象，发现钛锡酸钡陶瓷的铁电相和顺电相呈现不同的宏观性能时间依赖规律，认为是同极性空间电荷的输运过程导致了顺电相样品呈现强的弛豫行为，铁电相中存在畴壁捕获空间电荷的机制因而其弛豫行为较弱；研究了钛锡酸钡陶瓷中束腰电滞回线、反常 C-V 曲线和顺时针可逆电滞回线等反常现象，将其归因于点缺陷的聚集对铁电畴畴壁的钉扎作用，多次电场循环有助于解除这种钉扎状态，减弱反常特征。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。