查询词典 newton

Memoryless quasi Newton method ; slope stability ; the most dangerous slip surface ; the minimum safety factor

无记忆拟牛顿法；边坡稳定性；最危险滑动面；最小安全系数

In this paper,a nonlinear planning method, quasi Newton multiplier method ,is introduced for the optimization of the bracing stiffness in braced frame structures with symmetric bracings.

本文针对设置有对称斜腹杆的钢筋混凝土框架－桁架结构，运用非线性规划方法拟牛顿乘子法，对框架－桁架结构体系中斜撑的刚度进行优化。

Because this book totally negates the issue, argument of special relativity and its mathematical tools, and uses Newton law and light velocity superposition principle to re-explain the important dissent physical experiments in history(including Michelson-Morley experiment).

因为，本书对狭义相对论的论点、论据及其数学工具都进行了全盘否定，并用牛顿定律和光速叠加原理重新解释了历史上重大异议的物理实验(包括 Michelson-Morley 实验)。

"Force :Action that tends to maintain or alter the position of a body or to distort it. It is a vector quantity, having both magnitude and direction. Force is commonly explained in terms of Newton's laws of motion."

&力：力学中指任何使物体保持或改变位置或使物体变形的作用，力是一种矢量，有量值和方向，这一概念通常是按照牛顿运动定律所用的术语来解释的。&

After 3800 Death of the World's top math problems -- Ruler as "arbitrary angle trisection, turning round to square, fold the cube, as is 7-gon, as is 9-gon, as are 10 side of the form, as are 13-gon," The world, where people called mathematicians have challenged the "seven problems" Archimedes Newton Gauss, etc., Are hard to understand in the end.

历经3800年世界顶级数学死题——尺规作&任意角三等分、化圆为方、倍立方体、作正七边形、作正九边形、作正十一边形、作正十三边形&，全球，凡称得上数学家的人都曾挑战过这&七大难题&，阿基米德、牛顿、高斯等等，均以不得其解而告终。

Based on the principle of Hamilton, dividing the main blade, flexbeam and torque tube into several beam elements, the bearingless rotor is nonlinearly modeled in this paper through modal transformation. By Newton-Raphson iteration and temporal finite element method, the above nonlinear equations are solved.

将无轴承旋翼的主桨叶、柔性梁和套管3个部分各自离散成若干梁单元，并将桨叶运动的物理坐标转换为挥舞、摆振、扭转方向的模态坐标，根据Hamilton原理建立旋翼气弹分析的动力学模型。

Since Newton's time, mathematicians and physicist have investigated the tides by considering the response of the oceans to the tide-generating forces.

从牛顿时代以来，数学家和物理学家们就一直通过考虑海洋对引潮力的响应来研究海潮现象。

Since Newton's time, mathematicians and physicist HAs investigated the tides by considering the response of the oceans to the tide-generating forces.

从牛顿时代以来，数学家和物理学家们就一直经过考虑海洋对引潮力的响应来研究海潮显像。

With Newton-Raphson and arc-length calculation method, this paper has made research on effect of various cable style, rise-span ratio and slenderness ratio on ultimate bearing capacity.

文中使用牛顿—拉弗森法和弧长法对荷载—位移平衡路径进行跟踪研究，研究了索对结构极限承载力的影响；分析中考虑了不同矢跨比和长细比等因素对索—拱结构极限承载力的影响。

New algorithms and design strategies greatly imp- rove the XXX87's performance, lots of instructions can be finished in a few clock cycles. Newton-Raphson and Polynomial approximation are used to implement division, square root, and elementary functions.

特点是结合牛顿-拉夫逊迭代算法，采用多项式逼近法对初等函数、除法和平方根进行实现，既有效地利用XXX87片内的浮点加法单元和阵列乘法器，又避免了查找表的使用。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。