Results 31 to 40 of about 704,101 (306)
A rapid and simple method for assessing and representing genome sequence relatedness
Peer Community Journal, 2021 Coherent genomic groups are frequently used as a proxy for bacterial species delineation through computation of overall genome relatedness indices (OGRI).
Briand, M +5 more
doaj +1 more source
On a combinatorial curvature for surfaces with inversive distance circle packing metrics [PDF]
Journal of Functional Analysis, 2017 In this paper, we introduce a new combinatorial curvature on triangulated surfaces with inversive distance circle packing metrics. Then we prove that this combinatorial curvature has global rigidity.
Huabin Ge, Xu Xu
semanticscholar +1 more source
Dense packings of congruent circles in a circle
Discrete Mathematics, 1998 Two methods based on the maximization of the minimum pairwise distance \(d\) among \(n\) points spread in a circle are proposed to generate packings of congruent circles in the circle. To overcome the difficulty caused by the nonsmoothness of that objective function, in the first method it is approximated by a smooth one, which can be regarded as a ...
Ronald L. Graham +3 more
openaire +1 more source
AIP Advances, 2020 In the present study, we theoretically investigate the far infrared (FIR) spectrum of clusters formed by AlxGa1−xAs/GaAs, GaN/AlN, InSb/GaSb, and ZnSe/CdSe semiconductor hetero-structure quantum dots (QDs).
M. Solaimani, Davood Haji Taghi Tehrani
doaj +1 more source
Investigation of algorithms for coagulate arrangement in fundus images [PDF]
Компьютерная оптика, 2018 Diabetic retinopathy is one of the most frequent complications of diabetes, which leads to severe consequences, including rapid and irreversible vision loss.
Aleksandr Shirokanev +3 more
doaj +1 more source
Counter examples to invariant circle packing [PDF]
Annales De L Institut Henri Poincare-probabilites Et Statistiques, 2019 In this work, a unimodular random planar triangulation is constructed that has no invariant circle packing. This disputes a problem asked in [arXiv:1910.01614].
Ali Khezeli
semanticscholar +1 more source
Estimating random close packing density from circle radius distributions. [PDF]
Physical Review ECircles of a single size can pack together densely in a hexagonal lattice, but adding in size variety disrupts the order of those packings. We conduct simulations which generate dense random packings of circles with specified size distributions and ...
David J. Meer +3 more
semanticscholar +1 more source
Radial Density in Apollonian Packings [PDF]
, 2014 Given an Apollonian Circle Packing $\mathcal{P}$ and a circle $C_0 = \partial B(z_0, r_0)$ in $\mathcal{P}$, color the set of disks in $\mathcal{P}$ tangent to $C_0$ red.
Athreya, Jayadev S. +2 more
core +1 more source
Unimodular hyperbolic triangulations: circle packing and random walk [PDF]
Inventiones Mathematicae, 2016 We show that the circle packing type of a unimodular random plane triangulation is parabolic if and only if the expected degree of the root is six, if and only if the triangulation is amenable in the sense of Aldous and Lyons [1].
Omer Angel +3 more
semanticscholar +2 more sources
Multi-component layout design with coupled shape and topology optimization [PDF]
International Journal for Simulation and Multidisciplinary Design Optimization, 2008 A Coupled Shape and Topology Optimization (CSTO) method is proposed here to deal with the layout design of the multi-component system. Considering a complex packing system for which several components will be placed in a container of specific shape ...
Zhu J. H., Zhang W. H., Beckers P.
doaj +1 more source