• 即使初始条件十分光滑守恒方程也可能出现间断

    The solutions of the Hyperbolic conservation laws might develop discontinuity even if the initial conditions are very smooth.

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  • 文中讨论了一类内部动态有界的存在性。

    The bounded solutions of non hyperbolic internal dynamics are discussed.

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  • 研究一类非线性守恒系统广义黎曼问题

    The generalized Riemann problem for a class of decoupled nonlinear hyperbolic system of conservation laws is studied.

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  • 研究了位于对双柱面构成波导管电磁场电子性质,得到了单电子在场中狄拉克方程的新一类精确

    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.

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  • 研究一类边界条件中立脉冲方程振动,得到了每个非零振动的若干充分条件。

    In this paper, the oscillation properties of solutions under a kind of boundary conditions for impulsive hyperbolic differential equation of neutral type are studied.

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  • 本文分别研究线性方程组多维双-抛物方程组时间状态行为

    Here we study the large time behavior of solutions to quasilinear hyperbolic systems in one dimension and hyperbolic-parabolic systems in multi-dimensions.

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  • 考虑了一类具材料阻尼非线性方程问题整体存在性。

    Concerns with the nonexistence of global solutions to the initial boundary value problem for a nonlinear hyperbolic equation with material damping.

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  • 盘算机供那些动力方程效力交闭仿的实时性,所以必要一类更快稳的数值方式

    The speed of solving these formulations in computer is relation to real time of simulation system directly, so it is necessary to use a quick and steady numerical method.

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  • 分析油田防砂过程中的经验教训及要决的关键技术问题;

    This thesis chiefly analyses the experience and lessons in the course of sand exclusion and plugging removing in quit oilfield.

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  • 研究一类具有连续分布滞量非线性中立方程振动性质。

    To study the oscillatory of solutions to a class of nonlinear neutral hyperbolic differential equation with continuous distributed delay.

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  • 考虑一个带有松驰机制守恒组,证明了当初始数据适当小时,整体存在光滑性。

    A hyperbolic system of conservation laws with relaxation is considered, and the existence and smoothness of the solution is proved.

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  • 基本方法是以微分方程组简单为根据的。

    The underlying method is based on the simple wave solutions of a system of hyperbolic partial differential equations.

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  • 本文给出一类双泛函微分方程振动准则

    In this paper, oscillation criteria of solutions for a certain partial functional differential equations are obtained.

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  • 基于线性微分算子理论引入研究了具有非零初始线性双方程的定问题

    Based on theory of hyperbolic linear partial differential operator, the initial value problem of a kind of quasi-linear hyperbolic equations with non-zero initial values was introduced and studied.

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  • 利用扩展正切函数获得了(2 +1)长波短波共振相互作用方程显式精确

    Applying the modified extended tanh-function methods, many types of new explicit traveling wave solutions of the (2 + 1) dimensional long wave-short wave resonance interaction equations are obtained.

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  • 傍轴波动方程出发,给出了短双正割脉冲光束

    By starting from the paraxial wave equation, the analytical expression of the ultrashort Hyperbolic Secant pulsed beam are deduced.

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  • 本文以两个自变量线性方程古尔问题例,应用反函数积分不等式证明了等价积分方程组存在唯一性,同时给出了的存在区域和已知参量的依赖关系。

    In this paper, we show the domain of the existence of the solution on Goursat problem for quasi—linear hyperbolic equation and obtain the Theorem of the existence and uniqueness in above domain.

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  • 函数成功得到非线性浅水长波近似方程组精确孤立

    We successfully derived some exact solitary wave solutions of the nonlinear approximate equations with long waves in shallow water by using the hyperbola function method.

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  • 文中引用复函数,证明上述边值问题一般区域上存在性。

    The so called hyperbolic numbers and hyperbolic complex functions are introduced and used, and the existence of solutions for the above problem in the general domains is proved.

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  • 一定条件,证明一类拟线性伪方程第一问题古典存在性。

    The present paper provides a class of quasilinear pseudohyperbolic equation of the existence of classical solutions of the first boundary value problem under some suitable structure conditions.

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  • 本文证明一类非线性抛物耦合方程组初值问题整体序在唯一性。

    In this paper, we prove the global existence and uniqueness of the solutions of the small initial value problems for a class of second order nonlinear hyperbolic - parabolic coupled systems.

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  • 本文研究一类具有连续偏差变元带中立项的泛函微分方程的H-振动性,给出了判别H-振动的充分条件

    This paper studies the H-oscillations of hyperbolic partial functional in differential equations with deviating arguments and provides it with sufficient conditions.

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  • 所有这些基因都负责熟知药品诸如抗抑郁药精神抑制药包括、舒马安理申等在内的止片)的分子靶标编码

    The genes all encode molecular targets of well-known pharmaceuticals, such as antidepressants, antipsychotics and pain relievers including Prozac, Imitrex, and Aricept.

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  • 提高领导干部情商",知情、情、调情、识移情传情

    There are six steps to improve EQ of leading cadres, which include perceiving emotions, comprehending emotions, regulating emotions, discerning emotions, transferring emotions and conveying emotions.

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  • 该试验采用50%的混合蒸煮,直接加入新型复合工艺另外50%的混合料蒸者后制最后再混匀、发酵。

    We put new type complex enzymes into 50% admixture when it braized, the others 50% were made into leaven by ventilation. Then all of it were put into leaven pool to ferment.

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  • 研究了一类中立型泛函微分方程问题得到判定振动新的方法推广了已有的结果

    In this paper the boundary value problem for a neutral hyperbolic differential equation is studied. A new method for judgement of oscillation solution is obtained and is spreded known results.

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  • 根据边界条件给出三角级数有限条法的近似

    According to the boundary conditions of the curved slab, an analytical solution by trigonometric series and an approximate solution by method of finite strips have been given.

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  • 对于上述齐次守恒律方程组与其近似模型之间比较已经有人得到了相关结果

    There are some results on the comparison of weak solutions of homogeneous hyperbolic system and its approximate model.

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  • 考虑了一类具材料阻尼非线性方程值问题整体的不存在性。

    In this paper, the nonexistence of global solutions to a semi-linear Kirchhoff equation with dynamic boundary conditions is considered.

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  • 考虑了一类具材料阻尼非线性方程值问题整体的不存在性。

    In this paper, the nonexistence of global solutions to a semi-linear Kirchhoff equation with dynamic boundary conditions is considered.

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