Results 31 to 40 of about 13,400 (188)
The proper motion of the Magellanic Clouds, I: first results and description of the program [PDF]
, 2009 We present the first results of a ground-based program to determine the proper motion of the Magellanic Clouds (MCs) relative to background quasars (QSO), being carried out using the Iréneé du Pont 2.5 m telescope at Las Campanas Observatory, Chile ...
Baume, Gustavo Luis +7 more
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Orthorectification of Skin Nevi Images by Means of 3D Model of the Human Body
Sensors, 2021 Melanoma is the most lethal form of skin cancer, and develops from mutation of pigment-producing cells. As it becomes malignant, it usually grows in size, changes proportions, and develops an irregular border. We introduce a system for early detection of
Piotr M. Szczypiński, Katarzyna Sprawka
doaj +1 more source
Relativistic Reference Frames for Astrometry and Navigation in the Solar System [PDF]
, 2006 Astrophysical space missions deliver invaluable information about our universe, stellar dynamics of our galaxy, and motion of celestial bodies in the solar system. Astrometric space missions SIM and Gaia will determine distances to stars and cosmological
Kopeikin, Sergei
core +4 more sources
An Introduction to Hyperbolic Barycentric Coordinates and their Applications
, 2013 Barycentric coordinates are commonly used in Euclidean geometry. The adaptation of barycentric coordinates for use in hyperbolic geometry gives rise to hyperbolic barycentric coordinates, known as gyrobarycentric coordinates.
A. Einstein +30 more
core +1 more source
Физика волновых процессов и радиотехнические системыBackground. In the article, the concept of external barycentric coordinates is introduced to generalize the applicability of the barycentric method in solving external boundary value and initial boundary value problems of mathematical physics. Aim of the
Ivan S. Polyansky
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Small grid embeddings of 3-polytopes [PDF]
, 2009 We introduce an algorithm that embeds a given 3-connected planar graph as a convex 3-polytope with integer coordinates. The size of the coordinates is bounded by $O(2^{7.55n})=O(188^{n})$.
A. Ribó Mor +35 more
core +3 more sources
Научно-технический вестник информационных технологий, механики и оптикиThe paper describes three ways of calculating the k-dimensional volume of the k-dimensional simplex in the n-dimensional Euclidean space (n ≥ k) in the canonical barycentric coordinate system.
M. A. Stepanova
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Hybrid Modulation for Modular Voltage Source Inverters with Coupled Reactors
Energies, 2020 This paper proposes and discusses a concept of a hybrid modulation for the control of modular voltage source inverters with coupled reactors. The use of coupled reactors as the integrating elements leads to significant reduction in the size and weight of
Krzysztof Jakub Szwarc +5 more
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Can interestingness measures be usefully visualized?
International Journal of Applied Mathematics and Computer Science, 2015 The paper presents visualization techniques for interestingness measures. The process of measure visualization provides useful insights into different domain areas of the visualized measures and thus effectively assists their comprehension and selection ...
Susmaga Robert, Szczęch Izabela
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An opportunistic indoors positioning scheme based on estimated positions [PDF]
, 2009 The localization requirements for mobile nodes in wireless (sensor) networks are increasing. However, most research works are based on range measurements between nodes which are often oversensitive to the measurement error.
Diaz, Michel +2 more
core +6 more sources