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derivative相关的网络例句

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E. , the Frechet derivative is the first order of Zhang's integrated geometric factor. With the help of FEM, the calculation of the Frechet derivative is carried out conveniently, and its efficiency and accuracy are recommendable.

同时给出了均匀背景条件下Frechet导数结果,并且巧妙地解决了利用有限元素法计算Frechet导数的问题,获得了较高的运算效率和计算精度,从而使经典的有限元素法具备了求解测井响应和进行Frechet导数精确计算的双重功能。

The procedure estimating the regularization parameter is the same as that the adaptive Marquardt algorithm used. The Frechet derivative is directly derived from the forward methods: SAM and FEM. With the theory of SAM and Zhang′s geometric factor, the relationship between the Frechet derivative and the geometric factor is established, at the same time, one useful corollary is given, i.

选取正则化因子时,沿用自适应的Marquardt算法中阻尼因子的选取计算方法;计算Frechet导数时,根据逐次逼近解法和张氏几何因子理论,推导出了Frechet导数与张氏几何因子的关系,得出了Frechet导数为张氏一阶积分几何因子的结论。

By means of the Hermite interpolation formula with second derivative,a type of integrating formulas with second derivative is derived.

利用带二阶导数的Hermite插值公式,导出一类具有二阶导数的求积公式。

Higher Mathematics in derivative is a very important concept, is to study an important tool for mathematical problem, while derivative areas in mathematics also have a very wide range of use.

论文摘要翻译,谢谢摘要:导数在高等数学中是一个很重要的概念,是研究数学问题的重要工具,同时导数在数学领域外也有着非常广泛的运用。

The high lever of the financial derivative and high risk, in addition to the imperfect of the financial market, the incomplete of the laws and regulations make the risk of the financial derivative higher and having the expanding effect.

金融衍生工具的高杠杆性和高风险性,再加上金融市场的不健全、法律法规不配套以及监管体制不完善等因素的共同作用,使金融衍生工具交易的风险更高并且有扩大效应。

The results showed that the pressure and pressure derivative of non-newtonian fluid is higher than newtonian one;The power index is more smaller,the pressure and pressure derivative is more higher;The effect of skin factor on transient was different from that of power index;The storativity ratio and inter-porosity flow factor is just same as the newtonian fluid,and the effect of outer-boundary on transient pressure is different from that of newtonian fluid.

结果表明,非牛顿流体的压力及压力导数都明显高于牛顿流体;幂律流指数越小则压力和压力导数越大;表皮系数和非牛顿流体幂律流指数对压力响应的影响有着明显的不同;而弹性储容比和窜流系数的影响和普通三重介质相同,只是由于非牛顿流体的影响其"凹陷"的位置升高;外边界的影响也和牛顿流体的情况明显不同。

Aimed at the calculation complexity of Newton iterative method for solving nonlinear equation,a new iterative method with higher convergence rate and without derivative calculation is presented in this paper.Its convergence rate p is 1.839 and it doesn't need to calculate derivative.

为解决Newton迭代法求非线性方程数值解时必须提供一阶导数值的问题,提出了一个新的迭代方法,该方法不需提供导数值而只需计算函数值,且具有p=1.839的收敛阶,因而是一个收敛速度快且不需要计算导数值的迭代方法。

The study shows that the pressure transient curve of fractured wells in closed circular formation can be divided into six different flow regimes. In condition of the same fracture opening width and fracture length, compared to rectangular fracture, the pressure drop with tapered fracture is bigger, and the dimensionless pressure and pressure derivative curves are higher. In condition of the same fracture opening permeability, compared to linear declining and constant conductivity fractures, the pressure drop with exponential declining conductivity fracture is the biggest, and the dimensionless pressure and pressure derivative curves are the highest.

研究结果表明:圆形封闭地层压裂井的压力动态曲线可以划分为6个流动阶段;在相同裂缝开口宽度和相同裂缝长度的条件下,与矩形裂缝相比,楔形裂缝压力消耗大,表现为无因次压力及压力导数曲线越高;在相同裂缝开口渗透率的条件下,与导流能力呈线性降低的裂缝以及常导流能力裂缝相比,导流能力呈幂指数降低的裂缝压力消耗最大,表现为无因次压力及压力导数曲线最高。

"Economic Mathematics" on the function of the limit, derivative and differential, derivative applications, indefinite integral, integral, integral and infinite binary Series and the first order differential equations, and so forth.

经济数学》介绍了函数、极限、导数与微分、导数的应用、不定积分、定积分、二元积分和无穷级数与一阶微分方程等内容。

Furthermore, in order to overcome the disadvantage of GMC, i.e., it can only apply to the processes with relative order of 1, based on Lie derivative, we propose to let the r th derivative of the process output follow the given reference trajectory, to get the control law expression through solving an optimization problem.

针对GMC方法只适于相对阶r为1的简单过程的缺点,采用Lie导数的概念,令过程输出的r阶导数的轨迹为事先设定的标称轨迹,通过解优化问题得到控制律表达式,把GMC方法推广至相对阶r大于1的复杂多输入多输出过程,从而提出了一种广义一般模型控制方法。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。