Results 31 to 40 of about 2,249 (157)
Flow field through a gate valve installed in a circular pipe and loss coefficient
Nihon Kikai Gakkai ronbunshu, 2015 The loss coefficient and the flow fields downstream of the typical models of gate valves are investigated experimentally from the surface pressure and velocity distributions measured in the air-pipe flow at Reynolds number 4×104 and the various ...
Hidemi YAMADA +2 more
doaj +1 more source
Polarization shaping for control of nonlinear propagation [PDF]
, 2016 We study the nonlinear optical propagation of two different classes of space-varying polarized light beams -- radially symmetric vector beams and Poincar\'e beams with lemon and star topologies -- in a rubidium vapour cell.
Bouchard, Frédéric +8 more
core +2 more sources
Orbital angular momentum beam instabilities in engineered nonlinear colloidal media
, 2017 In this letter, we experimentally demonstrate the evolution of the optical vortex beams of different topological charges propagating in engineered nano-colloidal suspension of negative polarizability with saturable nonlinearities.
Johnson, Eric +5 more
core +1 more source
Soliton molecules in trapped vector Nonlinear Schrodinger systems [PDF]
, 2002 We study a new class of vector solitons in trapped Nonlinear Schrodinger systems modelling the dynamics of coupled light beams in GRIN Kerr media and atomic mixtures in Bose-Einstein condensates.
A.S. Desyatnikov +20 more
core +1 more source
Two-dimensional solitons with hidden and explicit vorticity in bimodal cubic-quintic media
, 2004 We demonstrate that two-dimensional two-component bright solitons of an annular shape, carrying vorticities $(m,\pm m)$ in the components, may be stable in media with the cubic-quintic nonlinearity, including the \textit{hidden-vorticity} (HV) solitons ...
A. S. Desyatnikov +9 more
core +1 more source
Necklacelike Pattern of Vortex Bound States
Physical Review XA vortex is a topological defect in the superconducting condensate when a magnetic field is applied to a type-II superconductor, as elucidated by the Ginzburg-Landau theory. Because of the confinement of the quasiparticles by a vortex, it exhibits a circular-shaped pattern of bound states with discrete energy levels, as predicted by the Caroli–de ...
Zhiyong Hou +10 more
openaire +3 more sources
Small Structures, Volume 7, Issue 4, April 2026.This review establishes a dimensional engineering paradigm for MOF‐derived absorbers, transitioning from discrete 0D units to 3D composite architectures. It highlights dimension–structure–performance correlations and provides insights into data‐driven and sustainable design for future high‐efficiency microwave absorption, aiming to guide the ...
Wangsheng Lai +16 more
wiley +1 more source
Arrays of optical vortices formed by "fork" holograms [PDF]
, 2014 Singular light beams with optical vortices (OV) are often generated by means of thin binary gratings with groove bifurcation ("fork holograms") that produce a set of diffracted beams with different OV charges. Usually, only single separate beams are used
Bekshaev, A. S. +2 more
core +1 more source
Graph potentials and topological quantum field theories
Proceedings of the London Mathematical Society, Volume 132, Issue 4, April 2026.Abstract We introduce a new functional equation in birational geometry, whose solutions can be used to construct two‐dimensional topological quantum field theories (2d TQFTs), infinite‐dimensional in many interesting examples. The solutions of the equation give rise to a hierarchy of graph potentials, which, in the simplest setup, are Laurent ...
Pieter Belmans +2 more
wiley +1 more source
Journal of Flow Control, Measurement & Visualization, 2015 Various properties of a necklace vortex system formed around a rectangular plate standing vertically on a flat ground wall were investigated by visualizations produced by injecting fluorescent dye into a water channel flow. As a result, it was found that the necklace vortex pattern had three steady systems depending on the Reynolds number Reh, the ...
Yasuhiro Nakahara, Hidemi Yamada
openaire +2 more sources