• 若其初值指数方式衰退,且空间可微,则此之后时间内将以指数方式衰退。

    The decay rate of the corresponding strong solution at infinity is also given for some kinds of initial data with exponential decay.

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  • 本文研究平面震波对静止零攻角二维对称绕射问题,求得

    An analytical solution is obtained for the diffraction of strong detonation waves by a stationary two-dimensional thin airfoil.

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  • 提出了非线性空间飞行器系统采用滑动模态控制方法非线性的空间飞行器系统通道交叉影响进行耦。

    A control method with sliding mode of nonlinear spacecraft system is provided in this paper, in which the interactive influences among channels of strong nonlinear spacecraft system are decoupled.

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  • 设备具有能力、碎时间、操作维修方便、对浆料只有作用没有切断作用等优点。

    This equipment has strong pulp ability, short time and convenient maintaining. it is only dissociating function and not cutting off to the thick liquid material.

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  • 针对新型自由度无轴承异步电动机多变量非线性耦合的系统采用系统的方法进行控制

    A decoupling control approach based on inverse system has been used for the innovative five degree-of-freedom bearing less induction motor, which is multi-variable, nonlinear and high coupling.

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  • 通过大量仿真比较,表明算法复杂非线性优选具有快速、高效棒性特点全局范围内有效搜索所有

    Through simulation and large, the algorithm shown in a complex nonlinear optimization is fast, efficient, robust features of the strong, and the global scope effective search all the optimal solution.

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  • 讨论一类次线性时滞微分方程振动性质,建立了三个新的振动性定理。推广改进已知一些结果

    The oscillation of a class of second order strongly sublinear delay differential equations is discussed. Three new theorems are established. The results generalize and improve some known ones.

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  • 本文主要研究高维空间带有退化粘性标量守恒方程的光滑的整体存在性,以及逼近平面稀疏衰减

    This paper is concerned with the decay rates of the solution to the strong planar rarefaction waves for scalar conservation laws with degenerate viscosity in several space dimensions.

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  • 针对多变量耦合被控系统提出了简化控制设计方法

    In view of strong coupling system, a kind of simple internal model decoupling control designing method is presented.

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  • 适当条件下,证明完全广义非线性拟变分包含存在唯一性并且得到迭代算法的收敛几乎稳定性

    Under suitable conditions, the existence and uniqueness of solutions of the that inclusion and the convergence and almost stability of the sequence generated by the iterative al.

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  • 讨论一类次线性时滞微分方程振动性质,建立了三个新的振动性定理。

    The oscillation of a class of second order strongly sublinear delay differential equations is discussed. Three new theorems are established.

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  • 采用模糊方法好地决了烤房温湿度耦合问题

    The method of fuzzy decoupling can solve the coupling problem between temperature and humidity in tobacco barn.

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  • 格式对于计算方程包含简单黎曼很好的,对于计算压差方程包含简单波的数值是不适用的。

    According to our numerical experiments, this scheme is good for computing the Riemann solution consist of only strong simple waves, but bad for the Riemann solution which contains weak simple w.

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  • 算法充分利用了实数遗传算法全局搜索能力和鲁棒性等优点从而较快地得到最优

    This alogrithm makes the ful use of RGA 's advantages of real genetic alogrithm thereby obtaining the optimal solution or accurate solution as quickly as possible.

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  • 讨论了一类次线性微分方程振动性质,获得三个新的振动性定理,推广改进了相关文献结果。

    The oscillation for solutions of the class of the second order strongly sublinear differential equation are discussed and three new oscillation theorems are obtained.

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  • 公式具有渐进对偶特性并且可以保证找到原问题的最

    This formulation possesses an asymptotic strong duality property and guarantees a success for identifying an optimum solution.

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  • 阐述利用最新提出同伦分析方法阻尼非线性振动方程,得到方程近似

    In this paper, the sixth-order approximate analytical solutions of the strong nonlinear oscillation with positive damping are obtained by using newly developed homotopy analysis method.

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  • 格式对于计算方程包含简单黎曼适合的,对于计算压差方程包含简单波的黎曼则不适用。

    According to our numerical experiments, this scheme is good for computing the Riemann solution consist of only strong simple waves, but bad for the Riemann solution which contains weak simple waves.

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  • 针对舰船消磁系统快速准确算、通用性设计要求磁体模拟理论基础提出了基于磁体模拟法的舰船磁场补偿技术

    Aim at the requirements of accuracy, speediness and applicability in vessel's degaussing process, a magnetic field compensation method is presented based on the magnet simulation theory.

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  • 回波消除问题本质难点是由于多路输入信号之间相关性而导致自适应滤波器唯一问题

    Multi channel acoustic echo cancellation (AEC) systems suffer from the non uniqueness problem of the adaptive identification solution because of the correlation of the input signals.

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  • 研究具有声学边界条件非线性波动方程初边值问题,得到整体存在惟一性。

    The existence and uniqueness of global solution for the nonlinear wave equations with acoustic boundary conditions are obtained.

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  • 研究一类退化线性抛物方程重整,在一定假设条件得到了这广义存在惟一性

    The existence and uniqueness of renormalized solutions of a class of strongly degenerate quasilinear parabolic equations under certain assumptions are discussed.

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  • 针对新型自由度无轴承异步电动机多变量非线性耦合的系统采用系统的方法进行控制

    A decoupling control approach based on inverse system has been used for the innovative five degree-of-freedom bearingless induction motor, which is multi-variable, nonlinear and high coupling.

    youdao

  • 信号检测才能日害删,中快跳频体忙蒙到做扰的攻打

    With the development of signal detection technique, slow frequency-hopping systems are vulnerable to jamming attacks.

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  • 实例分析表明,对于一般的非比例阻尼结构抗震设计规范采用方法具有较好的精度

    Meanwhile, the forced mode uncoupling method widely used in seismic design code also has good approximation, even though the relatively simple example structure is strongly non-proportional.

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  • 目的观察氟西汀(商品名百优)对卒中治疗效果

    Objective To estimate the effectiveness of fluoxatine treatment in patients with pathological crying and pathological laughing after brain stroke.

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  • 利用方程组的来定义框图格式等价性,等价、等价以及等价。

    We consider three kinds of equivalence, i. e. complete equivalence, strong equivalence, and weak equivalence.

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  • 研究一类耦合线性退化抛物方程组初边值问题正古典局部存在全局存在全局存在性。

    Local existence, global existence and nonexistence of classical solutions for a degenerate and strongly coupled quasilinear parabolic system were studied.

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  • 相当弱条件下扩散系数退化时,证明了方程的不合流性。

    Under the general conditions on the coefficients, when the drift coefficients are non degenerate, the non confluent property are proved.

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  • 相当弱条件下扩散系数退化时,证明了方程的不合流性。

    Under the general conditions on the coefficients, when the drift coefficients are non degenerate, the non confluent property are proved.

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