Surface areas
نویسندگان
چکیده
منابع مشابه
General Affine Surface Areas
Two families of general affine surface areas are introduced. Basic properties and affine isoperimetric inequalities for these new affine surface areas as well as for Lφ affine surface areas are established. 2000 AMS subject classification: Primary 52A20; Secondary 53A15. Finding the right notion of affine surface area was one of the first questions asked within affine differential geometry. At ...
متن کاملOn Lp-affine surface areas
Let K be a convex body in Rn with centroid at 0 and B be the Euclidean unit ball in Rn centered at 0. We show that limt→0 |K| − |Kt| |B| − |Bt| = Op(K) Op(B) , where |K| respectively |B| denotes the volume of K respectively B, Op(K) respectively Op(B) is the p-affine surface area of K respectively B and {Kt}t≥0, {Bt}t≥0 are general families of convex bodies constructed from K, B satisfying cert...
متن کاملMorphometric Analysis of Volumes and Surface Areas
Stereologic analysis was made of cell surface membrane (PM) and two interrelated cytoplasmic membrane systems, the vacuole membranes (VM) and small vesicle membranes (SVM) . Volumes and surface areas of the three membrane compartments were measured during steady-state pinocytosis, when membrane recycling is rapid, and during phagocytosis, when a shift to a lower rate of membrane uptake by endoc...
متن کاملTRIFORCE: Tessellated Semianalytical Solvent Exposed Surface Areas and Derivatives
We present a new approach to the calculation of solvent-accessible surface areas of molecules with potential application to surface area based methods for determination of solvation free energies. As in traditional analytical and statistical approaches, this new algorithm, called TRIFORCE, reports both component areas and derivatives as a function of the atomic coordinates and radii. Unique to ...
متن کاملSurface Water Flow of Urban Areas and Sustainable Urban Planning
Urban planning is associated with land transformation from natural areas to modified and developed ones which leads to modification of natural environment. The basic knowledge of relationship between both should be ascertained before proceeding for the development of natural areas. Changes on land surface due to build up pavements, roads and similar land cover, affect surface water flow. There ...
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ژورنال
عنوان ژورنال: Nature
سال: 1988
ISSN: 0028-0836,1476-4687
DOI: 10.1038/333812b0