Results 41 to 50 of about 419,531 (350)

A Proof of Smarandache-Pătraşcu’s Theorem using Barycentric Coordinates [PDF]

open access: yes, 2010
Proving the Smarandache–Pătraşcu’s Theorem in relation to the inscribed orthohomological triangles using the barycentric ...
Coandă, Claudiu
core   +1 more source

Unsupervised Machine Learning for Improved Delaunay Triangulation

open access: yesJournal of Marine Science and Engineering, 2021
Physical oceanography models rely heavily on grid discretization. It is known that unstructured grids perform well in dealing with boundary fitting problems in complex nearshore regions.
Tao Song   +7 more
doaj   +1 more source

A Multidisciplinary Approach to Triangular Shapes: Philosophy, Art, Mathematical Properties, and Application Purposes for High-Frequency Signal Processing Using Sierpiński Geometry

open access: yesFractal and Fractional
Triangular shapes have been studied from different perspectives over a wide temporal frame since ancient times. Initially, fundamental theorems were formulated to demonstrate their geometrical properties. Philosophy and art leveraged the peculiar aspects
Romolo Marcelli
doaj   +1 more source

Geopolitical Triangles in the Context of International Security

open access: yesКонтуры глобальных трансформаций: политика, экономика, право, 2020
Geopolitical triangles play an important role in changing the balance of power in the international arena in the context of competition between traditional and emerging powers.
A. V. Khudaykulova
doaj   +1 more source

Combinatorial Reciprocity for Monotone Triangles [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
The number of Monotone Triangles with bottom row $k_1 < k_2 < ⋯< k_n$ is given by a polynomial $\alpha (n; k_1,\ldots,k_n)$ in $n$ variables. The evaluation of this polynomial at weakly decreasing sequences $k_1 ≥k_2 ≥⋯≥k_n $turns out to be interpretable
Ilse Fischer, Lukas Riegler
doaj   +1 more source

Counting Triangles in Large Graphs on GPU [PDF]

open access: yesIEEE International Symposium on Parallel & Distributed Processing, Workshops and Phd Forum, 2015
The clustering coefficient and the transitivity ratio are concepts often used in network analysis, which creates a need for fast practical algorithms for counting triangles in large graphs. Previous research in this area focused on sequential algorithms,
Adam Polak
semanticscholar   +1 more source

Teaching Triangles

open access: yesMedEdPORTAL, 2014
Introduction Faculty at Academic Medical Centers are often not formally educated or prepared for their teaching role. Similarly, residents, fellows, nurses, and many other health care teams find themselves in a teaching role while taking care of patients.
Mariah Rudd, Alisa Nagler, Hugh Crumley
doaj   +1 more source

A rational cotangents of the angles of a triangle

open access: yesLietuvos Matematikos Rinkinys, 2014
We investigate how rational values cotangents angles of a triangle influence of its properties. The main result: cotangents of any two angles of a triangle are rational then, and only then, when a triangle similar to a triangle whose squares of sides are
Edmundas Mazėtis   +1 more
doaj   +1 more source

A unique variation of a four-bellied digastric muscle named “real quadrigastric muscle”: a case report and literature review

open access: yesFolia Morphologica, 2023
From a topographical standpoint, the digastric muscle is key to the formation of several triangles of the neck, which are of the utmost clinical significance. Herein, we present a previously unrecognised variation of the digastric muscle: a quadrigastric
B. Landzhov   +4 more
doaj   +1 more source

A novel chiral phase of achiral hard triangles and an entropy-driven demixing of enantiomers. [PDF]

open access: yesSoft Matter, 2015
We investigate the phase behavior of a system of hard equilateral and right-angled triangles in two dimensions using Monte Carlo simulations. Hard equilateral triangles undergo a continuous isotropic-triatic liquid crystal phase transition at packing ...
A. P. Gantapara, Weikai Qi, M. Dijkstra
semanticscholar   +1 more source

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