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Now showing items 131-140 of 187
A high performance biometric system based on image morphological analysis
(2014)
At present, many of the algorithms used and proposed for digital imaging biometric systems are based on mathematical complex models, and this fact is directly related to the performance of any computer implementation of ...
Landau-Zener and Rabi oscillations in the spin-dependent conductance
(2014)
We describe the spin-dependent quantum conductance in a wire where a magnetic field is spatially modulated. The changes in direction and intensity of the magnetic field acts as a perturbation that mixes spin projections. ...
Interpolation of geometric structures compatible with a pseudo Riemannian metric
(2016)
Let (M, g) be a pseudo Riemannian manifold. We consider four geometric structures on M compatible with g: two almost complex and two almost product structures satisfying additionally certain integrability conditions. For ...
Spherical analysis on homogeneous vector bundles of the 3-dimensional euclidean motion group
(2018)
We consider R3 as a homogeneous manifold for the action of the motion group given by rotations and translations. For an arbitrary τ∈SO(3)ˆ, let Eτ be the homogeneous vector bundle over R3 associated with τ. An interesting ...
Structure constrained by metadata in networks of chess players
(2017)
Chess is an emblematic sport that stands out because of its age, popularity and complexity. It has served to study human behavior from the perspective of a wide number of disciplines, from cognitive skills such as memory ...
Unified framework to determine Gaussian states in continuous-variable systems
(2017)
Gaussian states are the backbone of quantum information protocols with continuous-variable systems whose power relies fundamentally on the entanglement between the different modes. In the case of global pure states, knowledge ...
Problem of quantifying quantum correlations with non-commutative discord
(2017)
In this work we analyze a non-commutativity measure of quantum correlations recently proposed by Y. Guo [Sci. Rep. 6, 25241 (2016)]. By resorting to a systematic survey of a two-qubit system, we detected an undesirable ...
Very fast dissolving acid carboxymethylcellulose-rifampicin matrix : development and solid-state characterization
(2017)
One of the main obstacles to the successful treatment of tuberculosis is the poor and variable oral bioavailability of rifampicin (RIF), which is mainly due to its low hydrophilicity and dissolution rate. The aim of this ...
Effects of rainfall on Culex mosquito population dynamics
(2017)
The dynamics of a mosquito population depends heavily on climatic variables such as temperature and precipitation. Since climate change models predict that global warming will impact on the frequency and intensity of ...
Distinguishability notion based on Wootters statistical distance : application to discrete maps
(2017)
We study the distinguishability notion given by Wootters for states represented by probability density functions. This presents the particularity that it can also be used for defining a statistical distance in chaotic ...