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- Exact solution of spherical gravitational. 球面引力波的精确解。
- To the best of our current knowledge, there are no exact solutions to problems that are NP Complete. 按照目前的知识,NP完全问题没有精确解。
- Based on the theory of elasticity, the exact solutions of functionally gradient piezoelectric curved cantilever were obtained. 基于弹性力学理论，得到了弯曲型样度功能压电悬臂梁在受电场作用时关于力和电场的解析解。
- In the mean time, the n-term approximate to the exact solutions areobtained by truncating the series. 同时,通过对此级数进行截断我们得到它们的近似解。
- For non-homogeneous and multilayered hollow cylinder and hollow sphere, the elastodynamic and thermoelastic dynamic exact solutions are also derived. 对非均匀的空心圆柱和空心球，层合的空心圆柱和空心球，给出了弹性和热弹性动力学精确解。
- The major contents in this paper include: the exact solutions of the non-linear evolution equation and the integrable system. 本文研究的内容主要包括两个方面：非线性发展方程的精确解与可积系统。
- Using homogeneous balance principle (HBP) and with the aid of Mathematica, the new exact solutions to Benny equation are obtained, which modifies and perfects the known results. 利用齐次平衡法,借助计算机代数系统Mathematica,得到了Benney方程新的显式精确解,修正和完善了已有文献给出的结果。
- The exact solutions are presented for the statics, dynamics and buckling.All equations of elasticity can be satisfied, and all elastic constants can be taken into account. 给出静力、动力和稳定问题的精确解,其解满足弹性力学所有方程,并计及了所有弹性常数。
- A class of exact solutions of the Dirac equation are obtained for an electron in the electromagnetic field of a wave guide formed by two pairs of hyperbolic cylinders. 摘要研究了位于由两对双曲柱面构成的波导管电磁场里的单电子的性质，得到了单电子在场中狄拉克方程的新一类精确解；计算了极化算符的本征函数。
- In this paper,by using a new class of Riccati equations and the extended tanh-fuction method,exact solutions of the Klein-Gordon-Zakharov equations in three space dimensions are constructed. 运用改进的tanh函数法;利用一种新的Riccati方程得到三维空间中Klein-Gordon-Zakharov方程的精确解.
- With the aid of Computer algebraic system"Maple" and by using the auxiliary equation ?method,? several new exact solutions of the Sine-Gordon equation and the KP equation are obtained. 利用辅助方程的方法,在计算机代数系统Maple软件的帮助下,找到了Sine-Gordon方程和KP方程(theKadomtsev-Petviashviliequation)的新精确解。
- The model can be applied to the unsteady and steady stated as well as the subcritical and supercritical flow regimes.The model was examined by several samples with exact solutions. 应用若干理想条件下的精确解对模型精度进行了检验，并结合汉江中下游的水质问题验证了模型的实际应用能力。
- New explicit and exact solutions of the evolution equations describing the resonance interaction between the long wave and the short wave are obtained by using the extended hyperbolic-function method. 摘要通过扩展的双曲函数方法获得了描述长短波相互作用的非线性发展方程的显式精确解。
- Particularly, a third elliptic equation for the amplitude of NLS equation is obtained after using a special variable transformation, and two classes of new exact solutions are got again. 在求解过程中巧妙地引入一个变量代换后，又将非线性薛定谔方程化成了关于其振幅的第三种椭圆方程，从而又得到了该方程的2组新的精确解。
- Excellent agreement between the present approximation and the exact solution was found over the entire time domain. 在整个时间范围内近似式运算结果和准确解均十分吻合。
- Comparing the numerical results with the exact solutions for the free particle case, we showed that the CESE method had excellent results in simulating the variation of the wave function. 数值解与自由粒子之解析解比较显示，时空守恒法模拟变化剧烈的机率分布具有相当精确的结果；
- The convergence theorem of the proposed method is proved based on the exact solution of the subproblem. 基于子问题的精确求解，该文证明了算法的收敛性。
- In complicated calculations we can use a computer, because it quickly gives us an exact solution. 复杂的计算我们可以用计算机进行，因为它能迅速地求出准确的答案。
- The exact solution of the elliptic cone stripline is derivedbased on the TEM mode and perfect conductor assumptions. 研究了椭圆锥带线的特性阻抗等基本参数。
- I referred to my watch for the exact time. 我看了一下手表好知道准确的时间。
