Results 351 to 360 of about 7,794,127 (372)
Some of the next articles are maybe not open access.
, 2016
Early osseointegration plays a crucial role in determining the therapeutic efficacy of orthopedic implants. Some factors responsible for early osseointegration, such as inherent mechanical properties and surface topology of implants, are well ...
Xiaohan Dai +11 more
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Early osseointegration plays a crucial role in determining the therapeutic efficacy of orthopedic implants. Some factors responsible for early osseointegration, such as inherent mechanical properties and surface topology of implants, are well ...
Xiaohan Dai +11 more
semanticscholar +1 more source
1995
Our aim in this section is to show that a compact orientable surface is homeomorphic to a sphere with handles, under the assumption that the surface can be triangulated. The idea is to “flatten” it out, to realize the surface as a polygon in the plane, with certain identifications on the boundary edges, and then, by cutting and pasting, to simplify ...
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Our aim in this section is to show that a compact orientable surface is homeomorphic to a sphere with handles, under the assumption that the surface can be triangulated. The idea is to “flatten” it out, to realize the surface as a polygon in the plane, with certain identifications on the boundary edges, and then, by cutting and pasting, to simplify ...
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Tumors evade immune cytotoxicity by altering the surface topology of NK cells
Nature Immunology, 2023Xiaohu Zheng +13 more
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The Topology of Elliptic Surfaces
1994In this chapter, we shall complete the classical (i.e., pre-gauge theory) analysis of the C ∞-topology of elliptic surfaces. In particular we shall compare deformation equivalence and diffeomorphism in all cases except when the fundamental group of the elliptic surface is finite cyclic.
John W. Morgan, Robert Friedman
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The surface and the abyss/Rethinking topology
Environment and Planning D: Society and Space, 2015Through a critical deployment of the surface/depth metaphor, this article explores the catalytic potential of topological thinking to establish points of articulation between apparently opposed notions and canons of thought. Starting from a genealogy of mathematical developments and philosophical mediations toward the end point of geography, we ...
Lata I. B., Minca C.
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On-surface synthesis of graphene nanoribbons with zigzag edge topology
Nature, 2015Graphene-based nanostructures exhibit electronic properties that are not present in extended graphene. For example, quantum confinement in carbon nanotubes and armchair graphene nanoribbons leads to the opening of substantial electronic bandgaps that are
P. Ruffieux +13 more
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Combinatorial Topology of Surfaces
Mathematics Magazine, 1955Tlhe first section of this paper will be devoted to the study of two particular surfaces. The methods used to treat thiese surfaces will then be extended to develop a classificationof surfaces, each class consisting of combinatorially eauivalent surfaces.
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Exotic topology on the surface
Science, 2018Topological Matter Analyzing the spatial symmetries of three-dimensional (3D) crystal structures has led to the discovery of exotic types of quasiparticles and topologically nontrivial materials. Wieder et al. focus on the symmetry groups of 2D surfaces of 3D materials—the so-called wallpaper groups—and find that some of them allow for an additional ...
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, 2014
Purpose – The purpose of this paper is to investigate the influence of surface topology on the performance of laser line scanning probe and to suggest methodology for 3D digitization of specular surfaces. Design/methodology/approach – Two different molds,
S. H. Mian, M. A. Mannan, A. Al-Ahmari
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Purpose – The purpose of this paper is to investigate the influence of surface topology on the performance of laser line scanning probe and to suggest methodology for 3D digitization of specular surfaces. Design/methodology/approach – Two different molds,
S. H. Mian, M. A. Mannan, A. Al-Ahmari
semanticscholar +1 more source
Differential Topology of Surfaces
2021Cohomology appears as soon as one wishes to understand globally problems that one can solve locally. The cohomology will be a bookkeeping device for the obstructions preventing the existence of global solutions, provided that there are local solutions.
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