Results 71 to 80 of about 519,355 (198)

Grouping Based Blind Interference Alignment for $K$-user MISO Interference Channels

open access: yes, 2015
We propose a blind interference alignment (BIA) through staggered antenna switching scheme with no ideal channel assumption. Contrary to the ideal assumption that channels remain constant during BIA symbol extension period, when the coherence time of the
Lee, Jungwoo   +2 more
core   +1 more source

magnetic coherence length

open access: yes, 2019
Citation: 'magnetic coherence length' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.M03679 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Horizontal-Transverse Coherence of Bottom-Received Acoustic Field in Deep Water with an Incomplete Sound Channel

open access: yesJournal of Marine Science and Engineering
The horizontal-transverse coherence of low-frequency (300 Hz) and long-range (10–40 km) acoustic fields near the bottom in deep water is investigated based on experimental data obtained from the South China Sea.
Qianyu Wang   +7 more
doaj   +1 more source

Ginzburg-Landau theory of superconductors with short coherence length

open access: yes, 1997
We consider Fermions in two dimensions with an attractive interaction in the singlet d-wave channel of arbitrary strength. By means of a Hubbard-Stratonovich transformation a statistical Ginzburg-Landau theory is derived, which describes the smooth ...
A. J. Leggett   +43 more
core   +1 more source

Laser Coherence Meter Based on Nanostructured Liquid Crystals

open access: yesInternational Journal of Optics, 2013
We present the method for coherence length measurement using coherence meter based on hybrid liquid crystal structures doped with gold nanoparticles. The results indicate that the method is able to determine the coherence length of coherent light sources
A. Anczykowska   +2 more
doaj   +1 more source

Drell-Yan process in $pA$ collisions: the exact treatment of coherence effects

open access: yes, 2016
In this work, we investigate production of Drell-Yan (DY) pairs in proton-nucleus collisions in kinematic regions where the corresponding coherence length does not exceed the nuclear radius, $R_A$, and the quantum coherence effects should be treated with
Goncalves, Victor P.   +3 more
core   +1 more source

Three-dimensional analysis of prebunched electron beams in an x-ray free-electron laser

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2012
The effect of partial prebunching of an electron beam on the saturation length, efficiency, and longitudinal coherence is studied for a nominal x-ray free-electron laser design.
H. P. Freund, D. C. Nguyen, B. Carlsten
doaj   +1 more source

Generation and Propagation of a Hermite-Gaussian Correlated Schell-Model LG0l Beam

open access: yesApplied Sciences, 2019
A partially coherent beam under the combined action of a Hermite-Gaussian correlated function and vortex phase, named the HGCSMLG0l beam has been explored both theoretically and experimentally.
Xiaofeng Peng   +6 more
doaj   +1 more source

Mapping Images with the Coherence Length Diagrams

open access: yes, 2009
Statistical pattern recognition methods based on the Coherence Length Diagram (CLD) have been proposed for medical image analyses, such as quantitative characterisation of human skin textures, and for polarized light microscopy of liquid crystal textures.
Marazzato, R., Sparavigna, A.
core  

Vortex-line liquid phases: Longitudinal superconductivity in the lattice London model

open access: yes, 1997
We study the vortex-line lattice and liquid phases of a clean type-II superconductor by means of Monte Carlo simulations of the lattice London model. Motivated by a recent controversy regarding the presence, within this model, of a vortex-liquid regime ...
%G. Blatter   +40 more
core   +1 more source

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