查询词典 algebraic equation

A model equation of the Boltzmann equation for binary gas mixtures is deduced in this article.

本文提出一种二元混合气体玻耳兹曼方程式的模型方程式。

It is impossible to describe this complex flow with a single method. Specially to transition flow, there is no suitable theory. The equation that fits it is Boltzmann equation, but the solution of it is almost impossible.

特别是对于过渡领域的流动，目前尚无完善的理论，与之相对应的数学方程是完全的Boltzmann方程，它是一个非常复杂的非线性的积分-微分方程，除了极其简单的情形，它的求解根本是不可能的。

The author suggests another model equation of the Boltzmann equation.

这种模型方程式可能在近似程度上有些改进。

For example, we investigate Maxwell equation and Boltzmann equation in the above spacetime and the new properties of plasma and the theory of the radio emission of pulsars in flat spacetime.

比如，较详细地讨论了平坦空间和弯曲空间的Maxwell方程和Boltzmann方程，平坦空间中等离子体的新特性以及中子星磁层的射电辐射理论。

Basing on the Boltzmann transport equation, the equation of phonon radiative transport was set up.

从微结构低温工程学角度考虑界面层上声子的输运过程，依托Boltzmann粒子输运方程建立EPRT模型。

Compared with the basic equation, the improved Boltzmann equation can describe the collision between electron and fundamental state argon more perfectly, and can calculate the electron distribution in the whole energy range.

与Boltzmann基本方程相比，改进后的Boltzmann方程更全面地描述了电子与基态氩原子碰撞的物理过程，并能计算出整个能量区间的电子分布。

In particular, we expound Einstein field equation and its numerical approach when a neutron star is rotating and collapsing, and discuss the moments of Boltzmann equation and its observation when a neutron star is rotating only.

特别，我们论述了有转动有塌缩情况下Einstein方程及其可能的数值解法，以及有转动时Boltzmann方程的矩形式及与观测的联系。

This study uses the soil parameter reduction coefficients to model the seismic pile responses affected by liquefied soils. One dimensional wave equation analyses were conducted for the solutions. Based on the bore-hole data and nearby seismic record, the soil parameter reduction coefficients of liquefied layers can be obtained through a pre-analysis for liquefaction potential of the site. The reduction coefficients were used to reduce the soil modulus for liquefied soils, and the lumped mass analysis is performed to obtain the free-field response of the site. The ground deformations are superimposed onto the pile elements for discrete wave equation analysis, and the non-linear pile responses can be simulated through the modified Bouc-Wen model. Thus the deformations and failure mechanism of the pile are able to investigate.

中文摘要本研究之土质参数折减系数模式，系以一维波动方程模拟地盘液化状态下之桩基础动力反应，依据现场土层钻探资料与邻近测站之地震纪录，由土壤液化潜能评估法配合日本相关规范求得液化土层之土质参数折减系数，以此系数对土壤强度模数进行折减，并使用集中质块法求取自由场之地盘液化反应，再以此为前置解作用於桩基础之波动方程求解，桩身刚度以简化之Bouc-Wen模式模拟其非线性行为，以了解液化地盘内基桩之变形行为与破坏机制。

The stable wave-field propagators of one-way wave equation for Born and Rytov approximations are derived by using the local Born and local Rytov approximation methods in the scatter theory of wave-field propagation, and their application effects in prestack depth migration imaging of wave equation are compared theor...

利用波场传播散射理论中的局部Born近似和局部Rytov近似，分别导出了单程波方程的稳定的Born近似波场传播算子和稳定的Rytov近似波场传播算子，然后从理论和实践上比较了它们在地震数据波动方程叠前深度偏移成像中的应用效果。

On the basis of study on hydrates phase equilibrium and the GHSZ affecting factors, the potential planar distribution of gas hydrates is determined by studying the temperature and pressure conditions in the sea bottom with different water depth, and the thickness of GHSZ is attained by solving the hydrates phase boundary curve equation and geothermal gradient curve equation.

在充分研究水合物相平衡和水合物稳定带影响因素基础上，通过建立水深和海底温度的关系，确定了不同气体成分和孔隙水盐度情况下，水合物稳定带在南海的分布范围，并根据水合物相平衡曲线方程和温度-深度方程计算了水合物稳定带的厚度。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48