curvature of space 中文意思是什麼
curvature of space
解釋
空間曲率-
For geodesic triangle in 2 - dimensional constant curvature space, the author improves some geometric inequalities on its interior angle by theory of majorization
摘要對於二維常高斯曲率空間上的測地三角形，研究了其內角的優超關系，並運用優超理論得到了若干新的關于其三內角的幾何不等式。 -
Description : a synthesized poetic & calligraphic exhibition, using the curvature appearance and the combinational construction of words with the help of spatial installations to present poetry in divinatory symbols and the scenes of space - time variations
簡述：綜合書法以線條、造形、文字結構以及空間實物藉以表現詩的易象與時空變化場景。 -
Basically like “ adaptive approach ”, the method can control triangulation density with respect to the change of normal curvature of the surface generating a small number of triangular facets, and thiny triangles, degenerate triangles and “ cracks ” in 3d space will not occur, but the speed of the algorithm is higher than that of adaptive one
該方法基本上可以像「自適應」方法一樣，根據曲面的法曲率變化來控制三角化剖分的密度，生成的三角片數量較少，並且可以避免在三維空間產生狹長的三角形、退化三角形與「裂縫」 ，運行速度明顯比自適應方法快。 -
The convergence of error brought about by the curvature of earth's surface obviously has no counterpart in free space.
地球表面曲率產生的誤差是收斂的，顯然，在自由空間沒有類似的情況。 -
The casimir energy can be considered as the polarization of the vacuum energy of quantized fields due to the distortion caused by the presence of boundaries, curvature of the space - time manifold or some background fields
Casimir能量本質上是由於邊界的出現、時空的彎曲或是某些背景場的存在而引起的量子場真空能量。 -
Also, general relativity defines non - inertia space - time as a space of riemann. for riemann space has positive curvature, we have to doubt about where the minus curvature space is
廣義相對論把非慣性時空定義為黎曼空間，但由於黎曼幾何是正曲率空間，既然廣義時空是對稱的，我們必然要問，負曲率空間到哪去了？ -
We could first create a " sock " in the curvature of space, fold gently the space outside the sock in hyperspace, tear holes in the toe of the sock and in the space just below it, and finally " sew " the holes together to form a wormhole
天鵝座x - 1便是最早發現的懷疑黑洞。這物體的伴星是一顆o型星，質量下限是七個太陽質量，並會放射出x射線。一切證據都顯示它極有可能是黑洞。 -
9. by the research of metric tensor and riemann tensor on riemann manifold, we get the inherent curvature of configuration space belonging to parallel mechanism. so the relative coordinates and generalized coordinates are inevitable choice for parallel mechanism. 10
9 、通過對度量張量和riemann張量的研究，得出並聯機構運動可達子空間的內在「彎曲」性質，指出使用相對坐標系和廣義坐標是研究並聯機構運動學和動力學問題的必然選擇。 -
Abstract : with adopting of a frame of the principal fibre bundle. the article constructs a unified model of gravity and electromagnetic with torsion both in internal sp ace and in four - demensional space - time. the curvature on the bunde is calcula ted using connection theory in the principle fibre bundle. the action is construc tod with the curvature. the field equations are achieved. finally a discussion is made
文摘:應用纖維叢理論，在內部空間和四維時空引入撓率，建立了引力與電磁場的統一模型.利用纖維叢聯絡論求出主叢的標曲率，由它構造作用量，求得場方程，最後作一些討論 -
How the universe evolves is affected by three factors, namely the mean density of mass - energy, the space - time curvature and a mysterious factor, the cosmological constant
宇宙尺度的變化受三個因素影響：宇宙中質量-能量的平均密度宇宙的時空曲率與及一個神秘因素宇宙常數。 -
The future of the universe is mainly determined by the mean density of mass - energy and the space - time curvature, while cosmological constant does not carry any weight among popular cosmological theories
現在流行的宇宙論都不考慮宇宙常數，宇宙的未來完全由質量能量的平均密度及宇宙的時空曲率來決定。 -
This paper contains three chapters. we discuss the pinching problems on the length of the second fundamental form of compact space - like submanifolds mn with unit parallel mean curvature vector in the de sitter space spn + p. in particular, a sufficient condition for mn with constant scalar curvature to be totally umbilical is given
討論desitter空間s _ p ~ （ n + p ）中具有平行的單位平均曲率向量的緊致類空子流形m ~ n的第二基本形式長度拼擠問題，給出了具有常數量曲率的這種子流形是全臍球面的一個充分條件。 -
In chapter one, we investigate the influence of the boundary on the shape of the space - like hypersurface with constant mean curvature or constant scalar curvature in the lorentz - minkowski space ln + 1
第一章對于lorentz - minkowski空間中的常平均曲率或常純量曲率的類空超曲面，探討了邊界對超曲面形狀的影響。 -
In the second part, we investigate the compact submanifolds m with the parallel isoperimetric section in the real space forms rm ( c ) and prove that if there exists a parallel isoperimetric section on m, and the sectional curvature of m is always greater than zero, then m is contained in a hyper - sphere ; and get that the gauss curvature of the compact surfaces m with constant mean curvature in constant curvature space r4 ( c ) is always greater than zero, then m is a totally geodesic surface or a sphere, where an isoperimetric on m means a unit normal vector field defined globally on m with m1 ( ) = constant
（ 2 ）研究了實空間形式r ~ m （ c ）中具有平行等參截面的緊致子流形m ，證明了具有一平行等參截面的子流形m ，如果m的截面曲率恆正，則m包含在r ~ m （ c ）的一個超球面內；對于常曲率空間及r ~ 4 （ c ）中具有常平均曲率的緊致曲面m ，如果m的高斯曲率處處大於零，則m或為r ~ m （ c ）中的全測地曲面或為一球面。這里m上的等參截面是m上整體定義的單位法向量場，使得m關於它的平均曲率m _ 1 （ ）是常數。 -
Geometric distortion is traditionally corrected by an image resampling operation which is applied as a post - processing step to pfa. the scene size limits of pfa presented by range curvature qpe, can be alleviated by using an efficient image domain space - vairant post - filter
通常採用圖像域插值的方法校正幾何失真，而利用空變濾波器使散焦的點重新聚焦，這些校正方法可以減輕距離彎曲對成像范圍的限制。 -
The sixth chapter discusses the method for space transformation, which considers the curvature of the earth surface. the author first demonstrates that it is necessary to use ellipsoidal model for the system and educes the transform formula
第六章討論了考慮到地球曲率情況下的精確空間對齊問題。這一章中首先論證了應用大地橢球模型的必要性，然後推導出橢球面上的局部坐標間的坐標轉換公式。 -
If the density of matter and energy in the universe is less than the critical density, the space curvature will be negative
事實上，宇宙中暗物質和暗能量的多寡決定了宇宙的幾何結構。假若宇宙中的物質和能量的總密度低於臨界密度，它是一個空間曲率 -
Without space - time curvature, there is no meaning to general relativity, ie., classical gravity. without classical gravity, what is the meaning of quantizing it
或許在一個時空彎曲不再是必須條件的情況下，能夠成功的將引力量子化。
分享友人