- 更多网络例句与牛顿性相关的网络例句 [注：此内容来源于网络，仅供参考]
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But it is a hard task to solve this equation, one reason is that the TV-norm is nondifferentiable when |▽_u|= 0, so we cant apply a linearizationtechnique such as the Newton method. The other reason is that the Euler-Lagrange equation has a highly nonlinear term. The Newton method for such equation is known to have a very small domain of convergence, and it is very difficult to make sure that the initial value such as the observed image belongs to this domain. So the Newton method is not an ideal method for solving this equation.
但是求解它比较困难，主要是因为TV-范数在|▽u|=0处不可微，不能用诸如牛顿法之类的方法将其线性化；且Euler-Lagrange方程含有一个高度非线性的项，牛顿法只有局部收敛性，对于高度非线性问题它的收敛域很小，因此难以保证所取的初始点在它的收敛域内，故一般不用牛顿法直接求解。
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This article introduced Newton iteration method's related concept, Newton iteration method's correlation theorem, as well as when solves the misalignment equation root the theory basis, the astringent analysis, the starting value selection rule and so on.
本文介绍了牛顿迭代法的相关概念，牛顿迭代法的相关定理，以及在求解非线性方程根时的理论依据，收敛性分析，初始值的选取规则等。
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It has been prepared for the investigation of inexact quasi-newton method for operator equations in infinite dimensional space.
文献[1]对有限维空间中非线性方程组的不精确拟牛顿法的收敛性进行了研究，为无穷维空间上的算子方程的不精确拟牛顿法的研究作好了准备。
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To obtain quadratical convergence, however, strict complementarity condition at the Danskin point was used. The condition is too strict to be satisfied in many practical problems such as discrete semi-infinite minimax problem. Another kind of Newton method for finite minimax problems was presented by E. Polak and, without strict complementarity at the Danskin point, superlinear convergence (of order 3/2) was proven.
Polak等人提出了一种直接求解极大极小问题的二阶收敛的牛顿法，但是为获得二阶收敛速度要求在Danskin点处满足严格互补条件，这个条件太强，很多实际问题尤其是半无限极大极小问题的离散化不满足该条件；他们又给出另外一种牛顿法，在不假设严格互补条件成立的情况下，证明了它的超线性（3/2阶）收敛性。
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In the probabilistic model for wind farm, the uncertainties of wind speed is takes into account, and the real power injected and reactive power absorbed by the wind turbine are described as the function of the voltage magnitude, the slip of the induction machine and the circuit parameters of the wind turbines. In the unified iteration method, the slip of induction machine is introduced as the new correction value. The Newton-Raphson algorithm is used to solve the unified iteration of state variable and slip. Thus, the proposed method retains the quadratic convergence of the Newton-Raphson algorithm.
该风电概率模型考虑风速的随机性，将风机输出的随机有功功率和吸收的随机无功功率描述为电压幅值、异步机的滑差和风轮机的电路参数的函数；联合迭代方法中，异步风力发电机的滑差作为新的修正量被引入，使用牛顿-拉夫逊方法求解关于潮流状态变量和滑差的联合迭代，加热器因而迭代过程保持了牛顿-拉夫逊方法的平方收敛性。
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In this paper,several quasi-Newton algorithms are generalized to a class of new quasi-Newton equation,several modified quasi-Newton algorithm s are obtained and their global convergence are proved under the objective function is uniformly convex.
将几个拟牛顿算法推广到一类新拟牛顿方程，得到几个修正拟牛顿算法；在目标函数为一致凸的条件下，证明了它们都具有全局收敛性。
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Combining the fluid mechanics in porous medium and the geometry, the author considers the artificial barrier as a filter cake, research on the vadose rule on the condition of the coercibility and the non-Newtonian fluid flow, establish the formula of artificial barrier pressure drop and thickness, probe the formula of the thickness of artificial barrier for the pressure in the fracture,the coercibility, the smallest stress of barrier and the rheological property of fracturing fluid.
结合渗流力学和几何学，将人工隔层视为滤饼，在对人工隔层中渗流规律的研究中考虑了流体的非牛顿性和人工隔层的可压缩性，建立隔离层压降与厚度之间的关系式，探索人工隔层厚度与缝内压力、人工隔层可压缩性、上下隔层最小主应力、压裂液流变性等之间的关系。
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It is proved that Newton iteration method is still quadratically convergent under a weak condition, and a new point is added to Newton s method , i.
本文讨论求解非线性方程的牛顿法，证明牛顿法在一个弱条件下仍保持局部二阶收敛性，给出牛顿法的一点改进，即一个不带导数的单参数的二阶收敛的迭代法，而且分别得到这两种迭代法的收敛因子，最后进行数值实验
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The compound solution performs as pseudo-fictile fluid, and its visual viscosity is reduced when the shearing velocity increases. The higher the cationic degree of CPAM, the more apparent the rarefying behavior of the polymer-surfactant complex, but it still is pseudo-fictile fluid. In addition, such factors as the molecular weight of CPAM, temperature and PH value etc, have different effect on the properties of the mixed solution, including its visual viscosity, conductivity, rheological behavior and so on.
CPAM／SDS复合体系的表观粘度随剪切速率的增大而下降，即具有剪切变稀行为的特性，表现为拟塑性流体：CPAM的阳离子度越高，它与SDS形成复合体系剪切变稀的行为越明显，但体系的流动类型不发生变化，仍为拟塑性；随着CPAM分子量的提高，复合体系的非牛顿性增强；温度的升高将导致复合体系的粘度显著降低，非牛顿性减弱；对于SDS用量低于等电荷当量的复合体系，pH值的变化对其流变性的影响不显著。
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And trust region type algorithm with memoryless technology not only satisfies new factorized quasi-Newton equation, but also saves much storage and algebraic operations than the original factorized quasi-Newton methods.we prove it posses the global convergence and the local superlinear convergence under some condition.
本文中利用无记忆技术产生的无记忆型信赖域算法不仅满足新分解牛顿方程，具有其所有的良好性质，而且比一般的分裂拟牛顿法节省存储空间，减少计算量。本文证明了在一定假设条件下该算法具有全局收敛性及局部超线性收敛性。
- 更多网络解释与牛顿性相关的网络解释 [注：此内容来源于网络，仅供参考]
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apparent viscosity：表观粘度
(4)表观粘度(Apparent Viscosity) 表示非牛顿液体流动时的内摩擦特征所采用的术语. 亦称相似粘度. (5)粘温系数(Viscosity-temperature Coefficient) 评价润滑油在规定温度范围内粘温性的一个计算值. 粘温系数小,表示油品粘度随温度变化较小.
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apparent viscosity：表观黏度
矿油通常被认为是非牛顿性流体,而复黏度机油则显示了典型的非牛顿性,剪断速度变大时,其表观黏度(Apparent viscosity)会缓慢逐渐下降,最后会接近基础油黏度.
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Newtonian frame of reference：牛顿[性]参考系
牛顿[性]力 Newtonian force | 牛顿[性]参考系 Newtonian frame of reference | 牛顿重力说 Newtonian gravity
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inertial system：惯性系
爱:首先是,两事件的同时性(simultaneity)只能相对于所在的惯性系(inertial system)而定义-- 此即"相对论"(theory of relativity)名词的由来.换言之,我改变了牛顿"绝对时问"的假设.玻:你既假设光速不因惯性系迁变(transformation)而有所迁易,
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Newtonian：牛顿的/牛顿学说的/信仰牛顿学说的人
Newton /牛顿/ | Newtonian /牛顿的/牛顿学说的/信仰牛顿学说的人/ | Newtonianism /牛顿性/
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theory of relativity：相对论
爱:首先是,两事件的同时性(simultaneity)只能相对于所在的惯性系(inertial system)而定义-- 此即"相对论"(theory of relativity)名词的由来.换言之,我改变了牛顿"绝对时问"的假设.玻:你既假设光速不因惯性系迁变(transformation)而有所迁易,
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Newtonianism：牛顿性
Newtonianinnercapacity 牛顿内容量 | Newtonianism 牛顿性 | Newtonianlimitingviscosity 牛顿极限粘度