Results 41 to 50 of about 482,948 (211)

Securitization of the Mexican Membership in the UNASUR

Obrana a Strategie, 2017
The article tries to determine whether and to what degree the qualitative change of the Latin American regional-security complex occurred due to the occurrence of UNASUR and the CDS.
Jana Tůmová, Miroslav Jurásek
doaj   +1 more source

Echo scattering characteristics: Vortex beams reflected by rough surface in ocean turbulence

Results in Physics
Optical field echo scattering characteristic is one of the essential technologies for the future integration of underwater laser communication and detection. Vortex beam (e.g.
PengFei Wu, ZhuoRan Zhang, SiChen Lei, Jiao Wang, ZhenKun Tan   +4 more
doaj   +1 more source

Shearing Interferometer for Quantifying the Coherence of Hard X-Ray Beams [PDF]

, 2005
We report a quantitative measurement of the full transverse coherence function of the 14.4 keV x-ray radiation produced by an undulator at the Swiss Light Source. An x-ray grating interferometer consisting of a beam splitter phase grating and an analyzer
Bunk, O, David, C, Diaz, A, Pfeiffer, F, Robinson, IK, Schulze-Briese, C, vanderVeen, JF, Vartanyants, I, Weitkamp, T   +8 more
core  

Orbital superfluidity in the $P$-band of a bipartite optical square lattice

, 2010
The successful emulation of the Hubbard model in optical lattices has stimulated world wide efforts to extend their scope to also capture more complex, incompletely understood scenarios of many-body physics.
A Browaeys, A Hemmerich, A Hemmerich, A Isacsson, A Kuklov, Andreas Hemmerich, C Wu, C Wu, C Wu, C Xu, CC Loois, D Jaksch, GB Partridge, Georg Wirth, I Bloch, J Klinner, JB Marston, L-K Lim, L-K Lim, M Anderlini, M Greiner, M Köhl, M Lewenstein, Matthias Ölschläger, MPA Fisher, MW Zwierlein, RP Feynman, T Müller, V Scarola, V Scarola, VM Stojanović, W Liu, WS Bakr   +32 more
core   +1 more source

Spatial fragmentation of a Bose-Einstein condensate in a double-well potential [PDF]

, 1998
We present a theoretical study of the ground state of a Bose-Einstein condensate with repulsive inter-particle interactions in a double-well potential, using a restricted variational principle. Within such an approach, there is a transition from a single
A. L. Fetter, A. Röhrl, B. D. Esry, D. Jaksch, E. V. Goldstein, G. J. Milburn, J. E. Sipe, J. I. Cirac, J. I. Cirac, J. Javanainen, J. Javanainen, M. J. Steel, M. Naraschewski, M. R. Andrews, N. K. Wilkin, P. Nozières, R. W. Spekkens, R. W. Spekkens   +17 more
core   +2 more sources

Complex degree of mutual polarization of biological tissue coherent images for the diagnostics of their physiological state [PDF]

Journal of Biomedical Optics, 2005
This is the first attempt devoted to the 1st-4th order statistic analysis of the complex degree of mutual polarization of biological tissues coherent images. The ensemble of diagnostic criteria (skewness and kurtosis of two-dimensional distributions of complex degree of mutual polarization) of pathological changes of muscular and connective (skin derma)
Oleg V, Angelsky, Alexander G, Ushenko, Yevheniya G, Ushenko   +2 more
openaire   +2 more sources

Error Analysis of Polarimetric Interferometric SAR under Different Processing Modes in Urban Areas

Leida xuebao, 2022
Polarimetric Interferometric Synthetic Aperture Radar (PolInSAR) simultaneously has interferometric height measurement and full-polarized detection capabilities, which can better reflect the structural properties of feature targets.
Zexin LYU, Xiaolan QIU, Zhe ZHANG, Chibiao DING   +3 more
doaj   +1 more source

Synchronisation of stochastic oscillators in biochemical systems

, 2013
A formalism is developed which describes the extent to which stochastic oscillations in biochemical models are synchronised. It is based on the calculation of the complex coherence function within the linear noise approximation. The method is illustrated
Challenger, Joseph D., McKane, Alan J.
core   +1 more source

Detection of partially coherent optical emission sources [PDF]

, 2000
Detection of airborne optical emission sources in Infrared Search and Track (IRST) systems is usually carried out using the blackbody temperature or emissivity difference between the emission source and the background.
Coutinho, RC, French, HA, Selviah, DR
core  

Water Window Ptychographic Imaging with Characterized Coherent X-rays [PDF]

, 2015
We report on a ptychographical coherent diffractive imaging experiment in the water window with focused soft X-rays at $500~\mathrm{eV}$. An X-ray beam with high degree of coherence was selected for ptychography at the P04 beamline of the PETRA III ...
Dzhigaev, Dmitry, Gorniak, Thomas, Gorobtsov, Oleg, Rose, Max, Rosenhahn, Axel, Senkbeil, Tobias, Shabalin, Anatoly, Skopintsev, Petr, Vartanyants, Ivan, Viefhaus, Jens, von Gundlach, Andreas   +10 more
core   +2 more sources