Results 51 to 60 of about 1,417 (115)

Tight Focusing of Partially Coherent Vortex Beams

International Journal of Optics, 2012
Tight focusing of partially polarized vortex beams has been studied. Compact form of the coherence matrix has been derived for polarized vortex beams.
Rakesh Kumar Singh
doaj   +1 more source

New Frontiers in Heart Rate Variability and Social Coherence Research: Techniques, Technologies, and Implications for Improving Group Dynamics and Outcomes

Frontiers in Public Health, 2017
Concepts embraced by the term coherence have been identified as central to fields such as quantum physics, physiology, and social science. There are different types of coherence, although the term always implies a harmonious relationship, correlations ...
Rollin McCraty
doaj   +1 more source

Polarization diffractive elements analyzed with the Fourier transform Jones matrix and with the beam coherence polarization matrix [PDF]

EPJ Web of Conferences
We analyze polarization diffractive elements with the Fourier transform Jones (FTJ) matrix integrated with the beam coherence-polarization (BCP) matrix.
Marco David, Sánchez-López María del Mar, Lizana Angel, Campos Juan, Moreno Ignacio   +4 more
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Temporal coherence among tropical coastal lagoons: a search for patterns and mechanisms

Brazilian Journal of Biology
Temporal coherence (i.e., the degree of synchronicity of a given variable among ecological units within a predefined space) has been shown for several limnological features among temperate lakes, allowing predictions about the structure and function of ...
A. Caliman, LS. Carneiro, JM. Santangelo, RD. Guariento, APF. Pires, AL. Suhett, LB. Quesado, V. Scofield, ES. Fonte, PM. Lopes, LF. Sanches, FD. Azevedo, CC. Marinho, RL. Bozelli, FA. Esteves, VF. Farjalla   +15 more
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Entanglement between atoms succesively passing the cavity with thermal field

Физика волновых процессов и радиотехнические системы, 2015
In the present paper the entanglement dynamics of two atoms succesively passing the one-atom maser cavity with finite temperature has been considered. The influence of the initial atomic coherence and intensity of the thermal cavity field on the degree ...
E.K. Bashkirov, T.S. Mastyugina
doaj  

Decoding covert visual attention to motion direction using graph theory features of EEG signals and quadratic discriminant analysis

Computers in Human Behavior Reports
Visual attention is a type of selective attention that plays an important role in prioritizing and processing the information received from the visual scenes around us.
Zeinab Rezaei, Mohammad-Mahdi Mohammadi, Mohammad Reza Daliri   +2 more
doaj   +1 more source

A Probabilistic Model to Determine the Coherence of Texts in Interactive Question Answering Systems

Iranian Journal of Information Processing & Management, 2018
Evaluation plays an important role in interactive question answering systems like many computational linguistics fields. The coherence between the questions and the answers exchanged between the user and the system is one of the important criteria in ...
Mohammad Mehdi Hosseini, Morteza Zahedi
doaj  

The influence of dipole-dipole interaction on dynamics of entangled superconducting flux qubits interacting with thermal noise

Физика волновых процессов и радиотехнические системы, 2013
The dynamics of two initially entangled artificial atoms with degenerate two-photon transitions interacting with superconducting LC -circuit in the thermal state has been investigated.
E.K. Bashkirov, M.S. Mastyugin
doaj  

Electromagnetic Coherence Theory, Universality Results and Effective Degree of Coherence

, 2013
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Complex degree of coherence for partially coherent general beams in atmospheric turbulence

Journal of the Optical Society of America A, 2007
With the use of the general beam formulation, the modulus of the complex degree of coherence for partially coherent cosh-Gaussian, cos-Gaussian, Gaussian, annular and higher-order Gaussian optical beams is evaluated in atmospheric turbulence. For different propagation lengths in horizontal atmospheric links, the moduli of the complex degree of ...
Halil T, Eyyuboğlu, Yahya, Baykal, Yangjian, Cai   +2 more
openaire   +4 more sources