强分量

The theory of accretion disks are important for many astrophysical phenomena, including Quasars, active galatic nucleic, X-ray binary stars, and young stellar objects. The most important branch of accretion djsk theory is the stability properties of djsks. It is widely considered that the luminosity variations of various astronomical objects are associated with the instability of accretion disk. The viscosity plays an important role in the accretion disk theory, and magnetic field exists commonly in astronomical phenomena. A more realistic analysis of the stabihty of the accretion disk should include both the radjal and azimuthal perturbations because of the strong shear of viscous flow.In this paper, according to the luminosity Variations of Various astronomical objects, we study the radial-azimuthal instability of an isothermal with magnetic field. We find that the radial and azimuthal fields B〓,B〓 are mainly responsible for enhancing the instability of the magneto-acoustic modes and non-axisymmetric modes,and that pulsational oscillations are larger in the radial than in the Z direction. The model may be useful in explaining the periodic light variation of FU orionis and. T Tauri stars.

在许多天体物理现象中，例如活动星系核，X-射线双星和年青的恒星理论中，吸积盘理论起着重要的作用，而吸积盘理论中的一个重要分支是吸积盘的不稳定性理论，普遍认为活动天体的周期，准周期光变现象与吸积盘的不稳定性有关，在吸积盘理论中，粘滞起着重要的作用，而磁场是天体物理中普遍存在的现象，对于几何薄吸积盘不稳定性分析，由于强剪切流的缘故，应该包括径向和环向扰动两个方面，本文结合天体物理中的各种周期，准周期光变现象，研究了含磁场的等温薄吸积盘的径向-环向振荡不稳定性，结果表明：磁场的径向和环向分量对磁声模和非轴对称模的不稳定性的增加起着主要的作用，且径向振荡大于轴向振荡，所得结果有利于解释FU Orionis和T Tauri Stars的周期光变现象。

When the peak intensity of the laser pulse exceeds the relativistic laser intensity, the electric field parallel to the propagation direction of the laser will emerge by rather large amplitude under the effect of the ponderomotive force.

激光的有质动力加速是指当激光强度大于相对论光强时，除了电子的横向振动，激光的振荡电场在有质动力的作用下将产生极大的沿激光传播方向的分量。

The positive centers of ζ and ζ(subscript MPV1) and the negative center of ζ(subscript MPV2) distributing on the dense isoline zone of equivalent potential temperature at the upper level slantly spread from the upper down to low troposphere a- long the dense isoline zone.

干空气侵入在这次暴雨过程中有重要作用，对流层高层西风分量下传将高纬高层高位涡干空气带到低纬暴雨区低层，促使对流层低层对流发展，从而产生强降水。

Computer simulation results confirm the ad vantages of our optimization learning algorithm over existing ones.

它具有两个特点：可以全部存储任意给定的训练模式集；（2）每个模式分量都具有最大的联想容错性，实验结果表明，所提出的优化学习算法比现有算法具有更强的存储联想能力。

Relatively fewer components, the type of work to make paint teachers'the hirudoid.

相对使用较少分量时，打底涂料的类型的影响力特强。

It was found that the spectra contained two intense components and a weak one; the long lived component corresponds to the positronium.

配合时域介电谱方法用正电子湮没技术对硫酸三甘肽的铁电相变过程进行了测量，发现正电子寿命谱有两个较强的成份和一个很弱的成份，后者相应于正电子偶素，各分量在相变点附近很窄的温区出现奇异性质，对其起因作了解

Based on data from the dust storm monitoring station over Hunshandake Desert Area, Inner Mongolia, the maximum values of micrometeorological variables, turbulent fluxes and dust concentration in the surface layer are compared for eight dust events in the spring of 2004, and the characteristics of micrometeorology and radiation components in the strongest dust storm event in March 27-28 are analyzed.

利用内蒙古浑善达克沙地沙尘暴实验探测资料，给出2004年春季多次沙尘天气过程近地面微气象学要素、湍流通量及沙尘浓度的极值对比，重点分析了3月27-28日强沙尘暴过境时近地面微气象学要素和辐射分量的变化特征。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。