查询词典 hilbert cube

We study the recursive structure of the twisted-cube connected network sufficiently, and prove that the twisted-cube connected network is an n regular graph with connectivity n: point out that the twisted-cube connected network is a cube-free network, which is an essential distinction with the hypercube and other variations of the hypercube; prove that the diameter of n dimensional twisted-cube connected network is [ (n+1)/2] , which is almost the half of hypercube's.

首先对其结构的递归性进行充分地研究，证明它是连通度为n的n正则图；指出扭立方体连接网络无立方体子图，这是扭立方体连接网络与超立方体及其其它变种的本质差别；证明了n维扭立方体连接网络的直径为[（n+1）/2]，它几乎是超立方体直径的一半；最后，给出超立方体及其变种的等价定义，并对它们的结构递归性、网络参数和拓扑性质等作了简单的分析、综合和比较。

Considering that magic cube is easy to disarrange and hard to solve, I designed the Magic Cube Stream Cipher: the main part is a virtual cube filled with data; by turning the magic cube many times, original data are disarranged and new ones are generated; new data serve as current secret key, which is a part of the key stream.

我根据魔方"打乱容易恢复难"的特性，设计了魔方流密码算法：主体是一个由数据构成的虚拟魔方；利用多次魔方变换改变数据"魔方"的整体状态并生成新的数据；以此作为本次加密运算的密钥。

Considering that magic cube is easy to disarrange and hard to solve, I designed the Magic Cube Stream Cipher: the main part is a virtual cube filled with data; by turning the magic cube many times, original data are disarranged and new ones are generated; new data serve as current secret key, which is a part of the key stream.

我根据魔方&打乱容易恢复难&的特性，设计了魔方流密码算法：主体是一个由数据构成的虚拟魔方；利用多次魔方变换改变数据&魔方&的整体状态并生成新的数据；以此作为本次加密运算的密钥。

Use Left mouse button to drag cube face or roll wheel to screw one face of cube, hold middle mouse button or left button in background space to rotate cube integrally, roll wheel in background space to zoom cube, press SHUT or Alt+F4 to quit.

在魔方表面使用鼠标左键拖拽或滚轮旋转来转动魔方，按住中键或在背景处按住左键移动鼠标整体旋转魔方，在背景处用滚轮缩放，SHUT按钮或Alt+F4退出。

Operation Instruct操作方法Use Left mouse button to drag cube face or roll wheel to screw one face of cube, hold middle mouse button or left button in background space to rotate cube integrally, roll wheel in background space to zoom cube, press SHUT or Alt+F4 to quit.

在魔方表面使用鼠标左键拖拽或滚轮旋转来转动魔方，按住中键或在背景处按住左键移动鼠标整体旋转魔方，在背景处用滚轮缩放，SHUT按钮或Alt+F4退出。

The research of this thesis focuses on the infimum and supremun of self-adjoint operators in a complex Hilbert space with respect to the Gudder order, the infimum and supremun of operators in a complex Hilbert space with respect to the *-order and theΓ-inverse of operators in a complex Hilbert space.

本文研究内容涉及Hilbert空间上自伴算子关于Gudder序的上确界和下确界，Hilbert空间上算子关于~*-序的上确界和下确界以及Hilbert空间上算子的Γ-广义逆这三个方面的内容。

Firstly, Wavelet-Galerkin algorithm for solving the first kind of singular integral equation with the Hilbert kernel is proposed, we use the characteristic of periodic wavelet on L~2([0,1]) and Hilbert kernel to solve and make stiff matrix lower dimensions and become sparser through thresholding,thus the cost of computation is reduced. Because of the singularity of Hilbert kernel we use Tikhonov regularization method to solve the system of stiff equation. At last the convergence and numerical result of approximate solution are given. Secondly, an approach of regularization based on Fourier is presented for sideways heat equation; we give the theory proof and error estimate.

首先，提出了含Hilbert核的第一类奇异积分方程的小波伽辽金(Wavelet-Galerkin)数值算法，该算法中利用了L~2([0，1])上的周期小波和Hilbert核的特点进行处理，使得刚性矩阵维数降低并且通过阈值使得它更加稀疏，减少了计算量；由于Hilbert核的奇异性，通过Tikhonov正则化方法求解所得到的刚性方程组，给出了收敛性和数值结果；其次，对标准的一维逆热传导方程给出了一种基于Fourier正则化方法，给出了理论证明及其误差估计，解决了文献中算法与理论误差估计的不相匹配的现象，该正则化方法不仅保留了测量数据的部分高频成份，且与文献中的算法具有同样的计算量和误差估计。

Translated Description: Welcome to the wonderful world of magic cube, Rubik's Cube of playing a variety of formulas to do the Rubik's Cube Paradise tutorial, I hope you get eight hours from outside the relaxation.

Description：欢迎您来到这个奇妙的魔方世界，各种魔方的玩法公式教程尽在魔方乐园，希望您能从中得到八小时以外的放松。

We play about space imagination, imagine yourself in the center of a cube, we have to out of the cube, we got out of the path is a cube of space, our movement, our path through time and events decision, this path can imagine into a movie.

大家发挥一下空间想象力，设想自己处在一个立方体的中心，我们要冲出立方体，我们冲出的路径是由立方体的空间、我们的运动、我们通过的时间和路径中事件决定的，这个路径可以想象成电影。

The network is based on a W〓Cu〓 cube-like unit with eight 〓 anions at the corners of the distorted cube and twelve 〓 cations at the middle of the edges, in which a coordination anion 〓 acting as template is capsulated in the cavity of the W〓Cu〓 cube.

该结构中的基本单元可看成是一个类似立方体的W〓Cu〓结构，其中八个〓阴离子位于立方体的顶角，十二个〓阳离子处于立方体的边上，并且有一个〓阴离子作为模板被包裹在此立方体所形成的空腔中。

The three party leaders have agreed to serve, either in the War Cabinet or inhigh executive office.

三党领袖已经同意加入战时内阁，或者担任国家高级行政职务。

In addition to neurons, the nervous system is populated with another category of cells, glial cells.

说植物的 classification 很难，一些特性比较特殊的植物特别是这个样子。