查询词典 curvature form

The space-like hypersurfaces with constant scalar curvature in a de Sitter space were studied and a pinching theorem on the square of the norm of the second fundamental form was obtained.

研究de Sitter空间中具有常数量曲率的类空超曲面，将Cheng-Yau的自共轨运算元口作用在对称张量T上，得到了这类超曲面关於第二基本形式模长平方的一个拼挤定理，加强了已有的相应结果。

Let x be an immersion of a compact Willmore surface M into the n-dimensional unit sphere Sn. In this thesis we first consider the Willmore surfaces in the unit 3-sphere, and establish an integral inequality for the square of the length of the trace free part of the second fundamental form and the mean curvature.

令x是一个从紧致威尔摩曲面M到n 维单位球面Sn的浸入，在本论文中我们首先考虑3维单位球面中的威尔摩曲面并建立一个包含第二基本型式迹为零部份的张量长度平方与平均曲率之积分不等式。

On the basis of Prof. S. Knothe's expression for arbitrary point in subsidence trough, the equations are derived with probabilistic integration for calculation of slope, curvature, horizontal movement, horizontal deformation, torsion and form deformation at arbitrary direction and point in subsidence trough.

本文在克诺特建立的地表下沉盆地任意点表达式的基础上，导出用概率积分法计算下沉盆地任意点任意方向的倾斜、曲率、水平移动、水平变形、扭曲和形变公式，并得出主剖面计算公式是任意点任意方向移动与变形计算公式的特例。

Shen prove a short time existence theorem for manifolds with umbilical boundary. He also derived the Simons' identity for the boundary under the Ricci flow. And as a corollary, Shen show that any three-manifolds with totally geodesic boundary which admits positive Ricci curvature can be deformed to a space form with totally geodesic

而带边流形上的Ricci流的研究始于Shen，在1996年，Shen在中考虑带边三维流形上的黎曼度量的Ricci形变，证明了如果初始三维流形的黎曼度量具有正Ricci曲率和全测地边界，则此三维黎曼流形上存在着常正曲率的黎曼度量。

Tectonization effects on Aran anticline exhibited as the follows: Aran anticline begin form rudiment in Ml member of URF; stronger compressive aggrandized extent of uplift in M2 member of URF; the strongest Tectonization aggrandized ultimately extent, especially in curvature of Aran anticline in later Quaternary sediment, Aran anticline finalized the design.

晚阿尔卑斯构造运动对Aran背斜地区的具体影响为：上红组M_1段沉积末，Aran背斜已经形成雏形；M_2段开始沉积到结束，构造挤压活动强度有所加大，Aran背斜隆起幅度相对有所增大；第四系以后发生了一次强烈的构造运动使Aran背斜的褶皱幅度、特别是曲度明显的加大，至此Aran背斜基本定型。

They exhibit bending deformation following the direction of the nanotube curvature. At room temperature, a nanoparticle smaller than Au 70 often escapes from the carbon nanotube surface and can be captured again by the nanotube or coalesces with other nanoparticles to form a larger nanoparticle.

纳米颗粒在碳纳米管上形成以后，小于Au 70的纳米颗粒有可能脱离碳纳米管运动，它们在脱离后可能再度被碳纳米管俘获或者跟其他纳米颗粒结合并被重新吸附到碳纳米管上来。

The Electric Dust Remover works like this:on the positive and negative pole which two metal curvature diameter's difference is abvious , put through the high voltage direct current and form a static electricity field in which gas is made to ionize.

电除尘器是在两个曲率半径相差较大的金属阳极和阴极上，通过高压直流电，维持一个足以使气体电离的静电场。

Structure form adopts converse triangle beam double-hole connection welded by general electric trolley wall plate and steel plate, connection shaft, triangle beam bottom is connected with girder by nut and thrust bearing, triangle beam could rotate 360 degrees horizontally, thus realize whole set electric trolley horizontal rotation, largely reduce curve track curvature radius of electric hoist traveling mechanism.

结构形式采取通用电动小车墙板与一个钢板和连接轴组焊的倒三角形吊梁双孔连接，三角吊梁下面通过螺母及推力轴承与一个横梁连接，三角吊梁相对横梁可在水平方向做360度旋转，从而实现电动小车的整体水平方向转动，大大减小了电动葫芦运行机构弧形轨道曲率半径。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。