Results 51 to 60 of about 66,556 (207)
Light: Science & Applications, 2023 Femtosecond vortex beams are of great scientific and practical interest because of their unique phase properties in both the longitudinal and transverse modes, enabling multi-dimensional quantum control of light fields.
Hongyu Liu +8 more
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Longitudinal magnetic field increases critical current in superconducting strip
, 2008 The critical state of the vortex lattice in a thin strip is considered for the case when first a perpendicular magnetic field is applied, then a longitudinal field, and then again the perpendicular field is increased. This longitudinal field can strongly
Brandt, Ernst Helmut, Mikitik, Grigorii
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Singular modes in Rayleigh instability of three-dimensional streamwise-vortex flows [PDF]
, 2002 The upper-branch neutral modes of inviscid instability in a boundary-layer flow with significant longitudinal vortices present are shown to possess typically a logarithmically singular, non-inflectional, critical layer.
Smith, FT, Timoshin, SN
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Vortex trapping and expulsion in thin-film YBCO strips [PDF]
, 2008 A scanning SQUID microscope was used to image vortex trapping as a function of the magnetic induction during cooling in thin-film YBCO strips for strip widths W from 2 to 50 um.
A. G. P. Troeman +13 more
core +3 more sources
Magnetic domain-wall velocity enhancement induced by a transverse magnetic field
, 2011 Spin dynamics of field-driven domain walls (DWs) guided by Permalloy nanowires are studied by high-speed magneto-optic polarimetry and numerical simulations.
Allwood +31 more
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Longitudinal Vortices in Granular Flows
, 2001 We present a new instability observed in rapid granular flows down rough inclined planes. For high inclinations and flow rates, the free surface of the flow experiences a regular deformation in the transverse direction.
Forterre, Yoel, Pouliquen, Olivier
core +4 more sources
Visualizing Spacetime Curvature via Frame-Drag Vortexes and Tidal Tendexes III. Quasinormal Pulsations of Schwarzschild and Kerr Black Holes [PDF]
, 2012 In recent papers, we and colleagues have introduced a way to visualize the full vacuum Riemann curvature tensor using frame-drag vortex lines and their vorticities, and tidal tendex lines and their tendicities.
Aaron Zimmerman +11 more
core +2 more sources
STABILITY MECHANISM AND CONTROL OF LONGITUDINAL VORTEX STREETS
PROCEEDINGS OF HYDRAULIC ENGINEERING, 1993 Boundary effects on the stability of the street of longitudinal vortices with their alternately changing direction are investigated by using the vortex filament model. The analysis shows that the longitudinal vortex street is unstable to a infinitesimal disturbance in both the infinite and the semi-infinite regions over a flat bed, whereas it is stable
Terunori OHMOTO, Muneo HIRANO
openaire +2 more sources
, 2011 Dynamical counterflow effects on vortex evolution under the truncated Gross-Pitaevskii equation are investigated. Standard longitudinal mutual friction effects are produced and a dilatation of vortex rings is obtained at large counterflow.
D. Gottlieb +4 more
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Nanomaterials, 2019 We demonstrate a vortex beam generator meta-surface that consists of silver structures and graphene layers. The miniature material is just a few microns in size and the working part is only a few hundred nanometers thick.
Zhuo Yang, Dengfeng Kuang
doaj +1 more source