spherical space

By replacing the fifth postulate in the preceding paper with the condition of spherical symmetry of space we again obtain the Friedmann universe in relativistic cosmology.

将前文中第五个假定改为空间具球面的对称性后我们仍遵出费烈特猛宇宙。

Walking freely in spherical virtual space

球面虚拟空间的自由漫游

The traditional clustering algorithms such as k-means and EM algorithm are based on a spherical sample space, when the sample space is not convex, the algorithm will stop at a local optimum.

传统的聚类分析算法最常见的比如k-means算法和EM算法，这些算法都是建立在凸球形的样本空间上，当样本空间不为凸时，算法会陷入局部最优。

Then we discuss the basic topology model of spherical surface digital space. In the end, the 4-intersection model was generalized to spherical surface digital space.

本文给出了球面数字空间的定义和特性，建立了基于流型的球面数字空间的基本拓扑模型，将Egenhofer等人的4交关系模型推广到球面数字空间。

Finite element investigation for hollow spherical joint of space tpuss

网架结构空心球节点的有限元研究

The well-known Pappus theorem and Desargues thorem in the Euclidean plane are extended to the Spherical space, and its applications ate also given out.

1988年左铨如将欧氏平面的Menelaus定理推广到二维球面型空间.本文在此基础上直接证明了二维球面型空间的Desargues定理和Pappus定理，并给出它们的几个应用。

The Study on Acoustics Design of Spherical Indoor Space

球形室内空间声学设计研究

Quantum Effect of Charge Particle in Spherical Symmetry Space Time

有关球对称时空中荷电粒子的一类量子效应

Therefore, for good human-computer interaction, this paper designs a single spherical panoramic space.

因此本文提出了对单个球形全景空间进行贴图的任意漫游系统，具有良好的人机交互性。

A class of Geometric Inequalities in Spherical Space

球面空间中的一类几何不等式

Properties of Jordan Curve and Topological Paradox in Spherical Surface Raster Space

球面栅格空间中的Jordan曲线性质及其拓扑矛盾分析

The convergence on the unit spherical surface in Orlicz space

0rlicz空间单位球面上的收敛性

Calculate the Electric Potential of Spherical Live Object Space with Electric Potential Superposition Principle

利用电位叠加原理求解球形带电体空间的电位

Finite element analysis on compressive bearing capacity of welded hollow spherical joints of space truss

网架焊接空心球节点受压承载力的有限元分析

The construction technology of adopting reversible chain method to manually hoisting of spherical type space truss

倒链人工吊装球型节点网架施工方法

Spherical Map of Space Closed Curve

空间闭曲线的球面映射

The covering-radius of a point set in spherical space is expressed in terms of the minimum of an energy intergral which is determined by the distance function subject to the certain conditions.

将d-1维球面型空间中点集的覆盖半径，用距离函数所确定的某个能量积分在一定条件下的最小值表示出来。

Research on Static and Fatigue Behaviour of Welded Hollow Spherical Joints in Space Trusses

网架焊接空心球节点静力及疲劳性能研究

Analysis of the bearing capacity formula of spherical joints in space trusses by the von Mises theory

用Von-Mises理论分析网架球节点承载力公式

Based on test results, a computation model is proposed for researching the compaction effects of open-ended pipe piles. This model simulates the pile penetration as the expansions of a series of spherical cavities in semi-infinite space.

基于试验结果，建立了开口管桩挤土效应解析计算模型，将桩体的压入过程模拟为半无限体中一系列球孔的扩张。

The Problem for Embedding Elementary Figurates in Spherical Space

初等图形在球面型空间的实现问题

Analysis of Failure Mechanism of Super Large Diameter Welded Hollow Spherical Joint in Space Trusses and Experimental Study of Its Bearing Capacity

网架结构超大直径焊接空心球节点破坏机理分析及其承载能力的试验研究

In the second part, a geometric inequality on finite points set of spherical space Sn is proved.

本文讨论了球面型空间的有关度量问题，并给出了球面型空间有限点集的一个不等式。

The finite boundless closed spherical space has given physical meaning to the super dimensional idea.

球状有限无界闭合空间的提出实际上赋予超维物理意义。

Traditional interactive panoramic digital city system is that the users tour in serials of spherical panoramic space which human-computer interaction is not strong, and it has a strong sense of the jumping.

传统交互式全景数字城市系统是指用户在若干连续的球形全景空间内进行漫游，人机交互性不强，有很强的跳跃感。