 全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多   凸体 的翻译结果: 查询用时：1.509秒 在分类学科中查询 所有学科 数学 航空航天科学与工程 金属学及金属工艺 计算机软件及计算机应用 更多类别查询 历史查询  凸体   convex body
 Let K be a planar convex body with area|K|,for any triangle r_1r_2r_3 by (r_1r_2r_3)denote its area,andThen theHeilbronn numbers of n points in K are defined byWe provedwhere Δ is any triangular region. 设K是一个具有面积｜K｜的平面凸体。 用（r＿1r＿2r＿3）表示三角形r＿1r＿2r＿3的面积，并令然后将K中n个点的Heilbronn数定义为对于三角形区域Δ，我们证明了 短句来源 A PROBLEM OF GEOMETRIC PROBABILITY FOR RANDOM PAIRS OF NEEDLES INTERSECTING A CONVEX BODY K 随机针偶与凸体K相交的几何概率问题 短句来源 In addition,for each origin-symmetric convex body,applying the Jensen inequality and the monotonicity of the geometric body Γ-pK,the reverses of Lp-version of the Petty's conjectured projection inequality and the Lp-Petty projection inequality were given respectively. 继而对于每一个关于原点对称的凸体,应用Jensen不等式和几何体Γ_pK的单调性,分别给出了投影不等式Petty猜想的Lp-形式的一个逆向不等式和Lp-Petty投影不等式的一个逆向不等式. 短句来源 Let A,p,r,R,d denote the area, perimeter, inradius, ciecumradius, diameter of a convex body K in E2,respectively. 对于平面凸体 ,分别用 A、p、r、R、d表示它的面积、周长、内径、外径、直径 . 短句来源 The Ratio of Affine Invarient and Convex Body's Buffon Problem 仿射不变量之比的极值和凸体的Buffon问题 短句来源 更多 convex bodies
 K, then Quermassintegral difference function of convex bodies K and D was difined: Dw_i(K,D) = W_i(K) -W_i(D), (0 ≤ i ≤ n - 1), and established Minkowski inequality and Brunn-Minkowski inequality for the Quermassintegral difference of convex bodies. Dw_i(K,D)=W_i(K)-W_i(D),(0≤i≤n-1), 并且建立了凸体的均值积分差的Minkowski不等式和Brunn-Minkowski不等式。 短句来源 DVORETZKY THEOREM ON GENERAL CONVEX BODIES 一般凸体Dvoretzky定理(英文) 短句来源 S. Leng first introduces the Quermassintegral difference function of convex bodies: If K, D ∈ K~n and D (?) 上,首次引进了凸体的均值积分差函数:若K,D∈κ~n且D(?) K,则凸体K和D的均值积分差函数定义为: 短句来源 Extremal Problems in Convex Bodies Geometry 凸体几何极值问题 短句来源 Properties and Applications of n-j-Dimensional Section Function of Convex Bodies 凸体的n-j维截面函数的性质及应用 短句来源 更多 convex geometry
 ON THE SPECTRUM OF THE LINEAR TRANSPORT OPERATOR IN A BOUNDED CONVEX GEOMETRY WITH CONTINUOUS ENERGY 有界凸体具连续能量的线性迁移算子的谱(英文) 短句来源 The Approximation of Discrete Ordinate Methods of Critical Equation in Bounded Convex Geometry 有界凸体中一类临界方程的离散纵标逼近 短句来源 In the first aspect, some inequalities and extremum properties are established by applying the asymptotic theory, local theory and integral transforms. The Petty-Schneider problem has attracted the attention of those working in convex geometry. 由于Petty-Schneider问题是凸体几何中一个热点问题，第二章首先推广Petty-Schneider问题到一般的均质积分情形； 短句来源 The main results given by the author are as follows:(i) The monotone property of the projection bodies intersection bodies and centroid bodies is the fundamental property in convex geometry. (1) 关于投影体、相交体、质心体的单调性问题是凸体几何中最基本而又相当重要的问题，其中关于投影体和相交体的单调性问题分别是著名的Shephard问题和Busemann-Petty问题。 我们将原有的结果推广到广义的投影体、相交体、质心体上，其中广义质心体是在本文中首次定义。 短句来源 We investigate the approximation of the discrete ordinate method for transport system in a bounded convex geometry with non-uniform medium and null boundary conditions. We prove the convergence of discrete ordinate method to approximately calculate critical thickness of ball and corresponding non-negative eigenfunction,by using quasi collectively compact operator theory on Banach spaces. 在C空间研究有界凸体迁移系统中一类单能、各向同性、非均匀介质的临界方程,使用Banach空间上的拟总体列紧算子理论,证明了近似计算临界尺寸及其相应的非负本征函数的离散纵标方法的收敛性. 短句来源 “凸体”译为未确定词的双语例句
 The Collision Detection Algorithm for Two Convex Curved Objects Base on the Minkowski Difference 基于Minkowski差构造技术的凸体碰撞检测算法 短句来源 The relationship between Archard' s wear coefficient and the critical number of deformation cycles to fatigue failure was estabished quantitatively. 该理论还提出了非疲劳磨损与疲劳磨损的不同变形和断裂机制,揭示了Archard磨损系数与微凸体发生疲劳断裂的临界受荷周期数之间的定量关系。 短句来源 Pseudoelastic TiNi Alloys Wear Mechanism Based on the Finite Element Analysis of Muti-asperities 基于多微凸体有限元分析的超弹TiNi合金磨损机制 短句来源 6. How to smooth the convex and non-convex bodies defined by discrete points has been described. 6.通过创建相应的分片函数,研究了基于离散点描写的凸体、非凸体的磨光问题。 短句来源 The RCS of the Smooth Convex Object Based on the Rational Bézier Surface 基于有理Bézier曲面任意光滑凸体的雷达散射截面 短句来源 更多 查询“凸体”译词为用户自定义的双语例句

我想查看译文中含有：的双语例句  convex body
 As a simple example, the total cross-sectional area of a convex body is found-the area of its orthogonal projection (geometrical shadow) averaged over all three angular degrees of freedom of a solid body. The uniqueness of the asymptotic type of flow in the neighborhood of a corner point in transonic flow past a convex body is discussed. An analytical method of computing the aerodynamic forces acting on a convex body of revolution whose motion satisfies locality law conditions. A study is made of the problem of hypersonic flow of an inviscid perfect gas over a convex body with continuously varying curvature. The immersion of a three-dimensional blunt convex body in a compressible fluid with nonpositive acceleration is considered in the linear formulation. 更多 convex bodies
 The metrization of classes of convex bodies is generalized to a Minkowski space with unsymmetric metric. A complete description of convex bodies possessing the Markov property Points of smoothness of convex bodies in a separable Banach space Asymptotic volume of Tori and geometry of convex bodies On the multiplicity of illumination of convex bodies by point sources 更多 其他 The matrices of class M have been investigated in detail by Householder.In this paper,we shall discuss the matrices of class M by using the L-norm,instead of the concept of the convex body.A comparatively short and new proof on the suf- ficient condition for a matrix to be of class M is given.When A is a matrix of class M,we find a concrete form of the matrix L such that‖A‖_L=p(A). Having Discussed the stability problems with the matrices of class M,we give a general sufficient condition on stability.First,the... The matrices of class M have been investigated in detail by Householder.In this paper,we shall discuss the matrices of class M by using the L-norm,instead of the concept of the convex body.A comparatively short and new proof on the suf- ficient condition for a matrix to be of class M is given.When A is a matrix of class M,we find a concrete form of the matrix L such that‖A‖_L=p(A). Having Discussed the stability problems with the matrices of class M,we give a general sufficient condition on stability.First,the statement(H)by Kreiss is equivalent to the following:(L)There is a constant C>0 and,for each A ∈,a nonsingular matrix L such that ‖L‖_2·‖L~(-1)‖_2≤C,‖A‖_L≤1.Secondly,let the non- singular matrix V transform A into a Jordan canonical matrix.If‖V‖_2·‖V~(-1)‖_2≤ c~2,where c=const>0,then Von-Neumann condition is also sufficient for stability when A is the matrix of class M.However,if there is a constant r<1,and ρ(A)≤ r<1,then the difference scheme is stable when A is not a matrix of class M. Householder 在中详细讨论过 M 类矩阵.本文不用几何上的凸体概念,而用 Young所引入的 L 模来讨论 M 类矩阵,给出一个 M 类矩阵充分条件的较为简单的新证明.同时,若A 是 M 类矩阵,给出了一类具体的非奇异矩阵 L,使得‖A‖L=■(A).但我们未能找到使得‖A‖L=■(A)的通解 L.然后用 M 类矩阵来讨论差分格式稳定性问题,给出了一个比较一般的实用的稳定性充分条件. According to the concept of multi.dimensional volumes in Banach spaces which wag introduced by E.Silverman   and has been deeply discussed by F.Sullivan  , a now geometrical parameter of Banach space ?? is defined in this paper by and some results about it are given.In particular, a new characterization of uniformly non-square Banach spaces is also obtained. 本文根据E.Silverman引入的,并由F.Sullivan进一步讨论的Banach空间多维凸体的体积概念,引入Banach空间一个新的几何参数?? 并进行了若干讨论,还给出了一致非正方形的Banach空间的一个新特征 This paper concerns the VD2 algorithm proposed by Vidigal and Director in 1982, and used to solve the Design Centering problem. Firstly, some analyses for the quadratic approximation to a quasiconvex (quasiconcave) function are presented. In particular, it is pointed out that their quasiconvexities (locally) are not equivalent. Secondly, the relation between Minkowski convex bodies in the process carrying out the VD2 algorithm is analysed. This contribution is to be replaced after some papers by the present... This paper concerns the VD2 algorithm proposed by Vidigal and Director in 1982, and used to solve the Design Centering problem. Firstly, some analyses for the quadratic approximation to a quasiconvex (quasiconcave) function are presented. In particular, it is pointed out that their quasiconvexities (locally) are not equivalent. Secondly, the relation between Minkowski convex bodies in the process carrying out the VD2 algorithm is analysed. This contribution is to be replaced after some papers by the present authors on the VD2 algorithm , , . Some of new results will be presented in . 所谓 ＶＤ２算法是指由Ｖｉｄｉｇａｌ和 Ｄｉｒｅｃｔｏｒ于１９８２年提出的，用于求解中心设计问题的一种算法［１］．本文对算法中的拟凸（拟凹）的二次近似作一些分析，相出了它的不等价性（局部）并分析了解序列中的 Ｍｉｎｋｏｗｓｋｉ凸体的关系。本文以及由作者所提出的其他几篇报告［６－８］，构成了对ＶＤ２算法的某些数学分析。在［９］中又给出了最近的一些研究结果。 << 更多相关文摘 相关查询

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