hyperbolic

Two fdmilies Of characteristic lines in the hyperbolic region are not orthogonal.

在双曲型区域两族特征线互不正交.

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The results obtained shows the intrinsic difference of the neutral hyperbolic equations from hyperbolic equation.

这些结果充分揭示了中立型双曲方程与双曲型方程存在质的差异.

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Hamiltonian schemes of four order rod vibration equation are considered and hyperbolic function tanh ( x) is applied.

考虑四阶杆振动方程的哈密顿方程组。

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At last, by utilizing the property of hyperbolic tangent saturation function and MRP, the attitude regulation and tracking control algorithms are designed.

最后利用双曲正切函数的性质和MRP自身的性质，分别设计了控制输入受限情况下的姿态调节和跟踪控制算法。

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The authors showthe hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces.

单叶双曲面和双曲抛物面是直线曲面.

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This model consists the hyperbolic partial differential equations, boundary conditions and cyclical conditions of the system.

该模型由描述系统振动的双曲型偏微分方程组及相应的边界条件和周期性条件组成.

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The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces.

作者证实:单叶双曲面和双曲抛物面是直线曲面.

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Super convergence of semidiscretization interpolation coefficients of quasilinear hyperbolic equations is discussed by using GFEM.

讨论了拟线性双曲方程的半离散插值系数有限元的超收敛性.

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To overcome the false result with piecewise constant regions produced by the binary zero-crossing decision process, a hyperbolic tangent function is used to substitute the symbol function, governing softly the varieties of gray levels of pixels beside the zero-crossing of edges.

为了克服二值的零交叉决策过程导致的虚假的分片常数图像，利用双曲正切函数代替符号函数，柔和地控制边缘的零交叉点两侧像素的灰度值变化。

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We investigate the characteristic boundary value problems for first and second order complex hyperbolic equations.

讨论了一阶和二阶双曲复方程的特征边值问题.

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In the collinear geometry, there are always some non-conjugate component in the reflected wave, and the functional relation between reflection coefficient of amplitude and the thickness of sample can have the form of tangent function, hyperbolic tangent function and linear function;

在共线装置中，在反射波中总含有一定的非共扼的成分，振幅反射系数与样品厚度的关系可能是正切、双曲正切或线性函数关系；

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Based on CORDIC algorithm, research reveals how to calculate hyperbolic function by simple hardware.

研究基于CORDIC算法 如何应用简单的硬件实现双曲正弦/余弦函数的计算.

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Figure 11.3.3–3 Family of hyperbolic flow potentials in the meridional stress plane.

这个连续而光滑的流势保证了流向总是为唯一确定的.图11.3.3-3显示了材料应力平面内的一族双曲线势,图11.3.3-4显示了偏应力平面内的流势.

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Popp and some experiments, biological photon delayed radiation intensity obeys the hyperbolic function with time.

考虑到声子和光子的相互作用,并通过实验和计算机模拟验证这一结果.

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The relationship between suction strength and suction was a hyperbolic feature.

同时研究发现非饱和重塑膨胀土的的吸力强度与吸力的双曲特性.

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In order to let the system run smoothly and let the signals in the system tend to be smooth, the hyperbolic tangent function, instead of sign function, is adopted in design of the robust control terms.

其中，在设计鲁棒控制项时，采用双曲正切函数代替常用的符号函数，使得系统信号趋于光滑，运行更顺利。

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The results show that the model has good fitting precision. It is more reasonable than traditional modified arc tangent function or hyperbolic function model for the saturation characteristic of transformer.

结果表明，与已有的修正反正切函数或双曲函数模型相比，该模型不仅具有较高的精度，而且对变压器饱和特性的模拟也更为合理。

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Image Compression of BP Neural Network with Hyperbolic Tangent Non-linear Function and Adding Mean Quantization Algorithm

双曲正切非线性函数和加均值量化算法对BP神经网络图像压缩处理的影响

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The hyperbolic conservation laws with relaxation appear in many physical systems floodwith friction, magnetohydrodynamics, etc.

带松弛项的双曲型守恒律组出现在诸多的物理系统中.

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The hyperbolic orbit of and its mass the visual binary star ADS9446 is determined as an example.

作为例子，我们计算了目视双星ADS9446的双曲线轨道。

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Finally, we construct 3 D highly directive antenna based on the hyperbolic medium.

最后, 在基于双曲线介质来构造3D高指向天线.

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We define the distance from a point to a hyperbolic pattern such that detection becomes feasible.

在此系统中,我们定义了点到双曲线的距离使得系统能够成功的运作.

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Iterative methods were constructed for implicit symplectic schemes of schrodinger equations of high order, the schemes were formed by using hyperbolic function tanh, and its conditions of convergence were discussed.

本文对以tanh（x）为基础构造的schrodinger方程的隐式辛格式建立一种迭代解法，并讨论了此代解法的收敛条件。

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In this article holomorphic curves in the complex hyperbolic space are discussed.

研究复双曲空间中的全纯曲线.

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Karl Gauss pioneered hyperbolic geometry.

卡尔·高斯开辟了双曲线几何学.

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Part I, a hyperbolic initial boundary value problem in unbounded domains in two dimensions is studied.

第一部分, 研究求解无界区域上二维双曲型方程初边值问题的数值方法.

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Meanwhile, the similar results are obtained for hyperbolic equation under semidiscrete scheme with above elements.

同时将其应用到双曲方程,在半离散格式下展开误差估计,得到了和抛物方程类似的结果.

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Hyperbolic gear oil is recommended to be used in the differential gears in driving axles.

汽车驱动桥的差速器齿轮应采用双曲线齿轮油来润滑.

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Arps presented the hyperbolic decline theory in 1945, a lot of solutions have been given.

Arps于 1945年提出双曲递减理论以来, 人们围绕这个理论提出了许多解法.

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This general solution consists of either the combinations of trigonometric and hyperbolic functions, or algebraic polynomials.

一般解包括三角函数和双曲线函数组成的解, 还有代数多项式解.

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