Results 1 to 10 of about 26,795 (292)

Maximum matching and a polyhedron with 0,1-vertices

open access: bronze, 1965
in a graph C is a subset of edges in C such that no two meet the same node in C. The convex polyhedron C is characterized, where the extreme points of C correspond to the matchings in C.
Jack Edmonds
openalex   +2 more sources

First Moments of a Polyhedron Clipped by a Paraboloid [PDF]

open access: yesSIAM Journal on Scientific Computing, 2022
We provide closed-form expressions for the first moments (i.e., the volume and volume-weighted centroid) of a polyhedron clipped by a paraboloid, that is, of a polyhedron intersected with the subset of the three-dimensional real space located on one side
Fabien Evrard   +4 more
semanticscholar   +1 more source

Development of an interactive PowerPoint to instill a deeper understanding of polyhedron concepts in mathematics class

open access: yesAlifmatika, 2023
Mathematics is generally considered a complex subject by the majority of students in Indonesia. Students tend to rely on simple learning strategies such as memorizing formulas.
Nur Izzati, Nurul Wahyuni, Bony Irawan
doaj   +1 more source

Generating Function Method for Calculating the Potentials of Inhomogeneous Polyhedra

open access: yesFrontiers in Physics, 2022
We propose a method of constructing analytical, closed-form expressions for electrostatic/Newtonian potentials of non-uniform polyhedral bodies, in which the density distributions are polynomials of coordinates.
Alexey Vladimirovich Nenashev   +1 more
doaj   +1 more source

FORM CREATIVITY STRATEGIES IN DISCRETE STRUCTURE MODELING IN DESIGN

open access: yesАрхитектон, 2021
Some current issues in regular discrete structure geometric form generation are considered with reference to different areas of design and architecture, and promising directions/trends in their development are identified.
Korotich Andrey V.
doaj   +1 more source

SOME MORPHOLOGICAL ASPECTS OF FORM IN REGULAR DISCRETE STRUCTURES IN DESIGN

open access: yesАрхитектон, 2021
Some aspects of geometric form generation in regular discrete structures for different spheres of design and architecture are elaborated and the main promising directions/trends in their development are identified.
Korotich Andrey V.
doaj   +1 more source

Asymptotic Forms of Solutions to System of Nonlinear Partial Differential Equations

open access: yesUniverse, 2023
Here, we considerably develop the methods of power geometry for a system of partial differential equations and apply them to two different fluid dynamics problems: computing the boundary layer on a needle in the first approximation and computing the ...
Alexander D. Bruno, Alexander B. Batkhin
doaj   +1 more source

CFD-DEM Simulation of Fluidization of Polyhedral Particles in a Fluidized Bed

open access: yesEnergies, 2021
Fluidization of non-spherical particles is a common process in energy industries and chemical engineering. Understanding the fluidization of non-spherical particles is important to guide relevant processes.
Zihan Liu, Huaqing Ma, Yongzhi Zhao
doaj   +1 more source

Template-Sacrificing Synthesis of Ni-Co Layered Double Hydroxides Polyhedron as Advanced Anode for Lithium Ions Battery

open access: yesFrontiers in Chemistry, 2020
The novel hollowed Ni-Co layered double hydroxide polyhedron (H-(Ni, Co)-LDHP) is synthesized via a template-sacrificing approach using ZIF-67 as template. The morphology, crystallinity, porous texture, and chemical state of H-(Ni, Co)-LDHP are examined.
Youjun Lu, Yingjie Du, Haibo Li
doaj   +1 more source

The Ecclesiology of Pope Francis: A Critical Analysis of the Metaphor of the Church as Polyhedron [PDF]

open access: yesBogoslovni Vestnik, 2023
Pope Francis focuses on essential topics for the Church and society in his pontificate. To describe the relationships between different social subjects, he often uses the metaphor of the polyhedron to highlight the importance of each individual and each
Željko Tanjić, Zoran Turza
doaj   +1 more source

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