isoperimetric 中文意思是什麼

isoperimetric 解釋
等周的
  1. Isoperimetric number of a kind of cartesian product graph

    一類笛卡爾乘積圖的等周數
  2. Programming of isoperimetric quadrilateral element based on matlab

    的四結點等參元的編程
  3. And then, in this part, following the idea of topping [ 51, 52 ], we will show an isoperimetric inequality ( 6. 3. 1 ) on surfaces of non - positive gaussian curvature by means of the curve shortening flow on surfaces, this inequality can be considered as a generalization of the banchoff - pohl inequality in the euclidean plane

    然後,仿照topping [ 51 ]和[ 52 ]利用平均曲率流證明等周不等式的想法,我們利用曲面上的曲線縮短流在gauss曲率非正的曲面上證明了一個等周不等式( 6
  4. 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。
  5. The main work carried out goes as following : ( 1 ) the stiffness matrix of the 8 - noded isoperimetric brick element with equivalent reinforcement membrane is carefully deduced

    本文的主要工作如下: ( 1 )推導了帶鋼筋薄膜的八結點六面體等參數單元的單元剛度矩陣。
  6. In this paper, nonlinear behavior of reinforcement concrete combined torsion members subjected to axial compression, bending moment, shear and torsion is analyzed and researched with nonlinear finite element method. concrete has been modeled using eight - node hexahedral isoperimetric element and reinforcement element are divided into two cases. longitudinal reinforcement has been modeled with discrete element and stirrup has been modeled with smeared element

    在建立鋼筋混凝土的有限元模型時,混凝土採用的單元為八節點六面體等參單元,鋼筋單元分為兩種情況,縱向鋼筋採用分離式鋼筋單元,箍筋採用埋藏式鋼筋單元,即箍筋作為附著在混凝土等參數單元內或單元上的「膜單元」 。
  7. An elementary proof of the isoperimetric problem

    等周問題的一個初等證明
  8. In this paper the introduction of the use cohesive element in concrete structure is given, and a kind of 2 - d isoperimetric cohesive element is deduced. the fracture process of concrete notch beam is calculated by fortran programming. the result shows that the method is feasible

    本文主要對內聚模型在混凝土斷裂數值模擬中的應用做了一些討論,並推導出了一種簡單的二維六結點等參內聚單元,並用fortran語言編寫了含有內聚單元的有限元程序對混凝土切口梁的斷裂過程進行了計算。
  9. He also proposed and discussed the problem of isoperimetric figures.

    他還提出並討論過等周問題。
  10. The isoperimetric inequality in r

    三維空間中的等周不等式
  11. Isoperimetric inequality for sphere and ellipsoid is discussed, and the isoperimetric inequality of some region satisfying certain conditions is given

    摘要討論球面和橢球面上的等周不等式,並給出了球面與橢球面上滿足一定條件的區域的等周不等式。
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