Results 11 to 20 of about 14,623 (104)
A Kirchhoff-like conservation law in Regge calculus [PDF]
, 2008 Simplicial lattices provide an elegant framework for discrete spacetimes. The inherent orthogonality between a simplicial lattice and its circumcentric dual yields an austere representation of spacetime which provides a conceptually simple form of ...
Gentle, Adrian P. +3 more
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Grid Vertex-Unfolding Orthogonal Polyhedra
, 2006 An edge-unfolding of a polyhedron is produced by cutting along edges and flattening the faces to a *net*, a connected planar piece with no overlaps. A *grid unfolding* allows additional cuts along grid edges induced by coordinate planes passing through ...
Damian, Mirela +2 more
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Polyhedra, Complexes, Nets and Symmetry [PDF]
, 2014 Skeletal polyhedra and polygonal complexes in ordinary Euclidean 3-space are finite or infinite 3-periodic structures with interesting geometric, combinatorial, and algebraic properties.
Schulte, Egon
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On the computation of foldings [PDF]
FME Transactions, 2017 The process of determining the development (or net) of a polyhedron or of a developable surface is called unfolding and has a unique result, apart from the placement of different components in the plane.
Stachel Hellmuth
doaj
Nonorthogonal Polyhedra Built from Rectangles [PDF]
, 2002 We prove that any polyhedron of genus zero or genus one built out of rectangular faces must be an orthogonal polyhedron, but that there are nonorthogonal polyhedra of genus seven all of whose faces are rectangles. This leads to a resolution of a question
Donoso, Melody, O'Rourke, Joseph
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, 1997 A procedure is described for efficiently finding the ground state energy and configuration for a Frenkel-Kontorova model in a periodic potential, consisting of N parabolic segments of identical curvature in each period, through a numerical solution of ...
H. J. Schellnhuber +8 more
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ARIATIONS OF CONCAVE PYRAMIDS OF SECOND SORT WITH AN EVEN NUMBER OF BASE SIDES
Journal of Industrial Design and Engineering Graphics, 2015 Concave pyramids of second sort (CP II) are formed similarly to concave cupolae of second sort (CC II) with a comparable logic of emergence to the regular-faced convex pyramids.
Marija Obradovic +2 more
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Journal of Modern Power Systems and Clean EnergyTo provide guidance for photovoltaic (PV) system integration in net-zero distribution systems (DSs), this paper proposes an analytical method for delineating the feasible region for PV integration capacities (PVICs), where the impact of battery energy ...
Shida Zhang +4 more
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The Rigidity of Spherical Frameworks: Swapping Blocks and Holes [PDF]
, 2009 A significant range of geometric structures whose rigidity is explored for both practical and theoretical purposes are formed by modifying generically isostatic triangulated spheres. In the block and hole structures (P, p), some edges are removed to make
Finbow, Wendy +2 more
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Convex Analysis and Optimization with Submodular Functions: a Tutorial [PDF]
, 2010 Set-functions appear in many areas of computer science and applied mathematics, such as machine learning, computer vision, operations research or electrical networks.
Bach, Francis
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