Results 11 to 20 of about 893,805 (272)

Triangular Trimers on the Triangular Lattice: an Exact Solution [PDF]

open access: yesPhysical Review Letters, 1999
A model is presented consisting of triangular trimers on the triangular lattice. In analogy to the dimer problem, these particles cover the lattice completely without overlap.
Nienhuis, Bernard, Verberkmoes, Alain
core   +5 more sources

On Triangular Multisets and Triangular Fuzzy Multisets [PDF]

open access: yesMathematics, 2022
The basic set operations between fuzzy sets are defined using the min and max functions; however, later on, new operators were introduced that used other functions, which, nevertheless, had similar properties to functions min and max. The resulting fuzzy
Apostolos Syropoulos
doaj   +2 more sources

Essentially Triangular Algebras [PDF]

open access: yesProceedings of the American Mathematical Society, 1986
If N \mathcal {N} is a nest, then the set of all bounded linear operators T T such that T P − P T P TP - PTP is compact for all P P in N \mathcal {N} is the essentially triangular algebra associated
Erdos, J. A., Hopenwasser, A.
openaire   +2 more sources

Performance Assessment of a Triangular Integrated Collector Using Neural Networks

open access: yesPolytechnic Journal, 2020
A numerical study is achieved on a new shape of temperature saver solar collector using an artificial neural network. The storage collector is a triangle face and a right triangle pyramid for the volumetric shape.
Raid W. Daoud   +2 more
doaj   +1 more source

MODELING OF HEAT EXCHANGE AT TURBULENT FLOW IN FLAT CHANNELS WITH SYMMETRIC TURBULIZERS ON BOTH PARTIES

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives. Mathematical modeling of heat transfer in flat channels with turbulators symmetrically located on both its sides, depending on the cross section of the turbulators.Methods.
I. E. Lobanov
doaj   +1 more source

A case of temporal triangular alopecia

open access: yesTurkderm Turkish Archives of Dermatology and Venereology, 2020
Temporal triangular alopecia (TTA) is a non-cicatricial alopecia characterized by an alopecic patch, usually located in the frontotemporal region, unilateral or bilateral, with an oval or narrow triangular base and no terminal hairs on it.
Emre Zekey, Gülcan Saylam Kurtipek
doaj   +1 more source

Congenital triangular alopecia

open access: yesInternational Journal of Trichology, 2015
Congenital triangular alopecia (CTA) also known as temporal triangular alopecia is a benign noncicatricial pattern of hair loss. It typically affects the frontotemporal region and rarely involves the temporoparietal or occipital scalp. It is a nonprogressive disorder that presents as a triangular, oval or lancet-shaped patch of alopecia.
Yin Li, Vincent Chum   +1 more
openaire   +3 more sources

Meshfree Approach for the Torsional Analysis of Orthotropic and FGM Thin-Walled Open Sections [PDF]

open access: yesMechanics of Advanced Composite Structures
The torsional study of different engineering sections made up of orthotropic and functionally graded material is presented in this paper. Prandtl’s stress function approach is used for the formulation of governing differential equations.
Ram Bilas Prasad   +2 more
doaj   +1 more source

Hierarchical triangular splines [PDF]

open access: yesACM Transactions on Graphics, 2005
Smooth parametric surfaces interpolating triangular meshes are very useful for modeling surfaces of arbitrary topology. Several interpolants based on these kind of surfaces have been developed over the last fifteen years. However, with current 3D acquisition equipments, models are becoming more and more complex.
Yvart, Alex   +2 more
openaire   +3 more sources

Triangular Numerical Semigroups

open access: yesIndian Journal of Pure and Applied Mathematics, 2022
Let \(\mathbb{N}\) denote the set of non-negative integers. A numerical semigroup is an additive submonoid of \(\mathbb{N}\) with finite complement in \(\mathbb{N}\). Every numerical semigroup \(S\) is minimally generated by \(S^*\setminus(S^*+S^*)\). The cardinality of this set is called the embedding dimension of \(S\).
Ana Margarida Neto, Laura Iglésias
openaire   +1 more source

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