Results 31 to 40 of about 66,556 (207)

Pipelike current-carrying vortices in two-component condensates

open access: yes, 2010
We study straight vortices with global longitudinal currents in the Bogomol'ny limit of the Abelian Higgs model with two charged scalar fields. The model possesses global SU(2) and local electromagnetic U(1) symmetries spontaneously broken to global U(1)
A. S. Nedelin   +8 more
core   +3 more sources

Generation of Arbitrary Longitudinal Polarization Vortices by Pupil Function Manipulation

open access: yesAdvanced Photonics Research, 2021
The properties of optical vortex provide new insights into a wide range of optical and physical phenomena, giving rise to numerous applications in multiple disciplines. Notably, as much as the associated technologies have become increasingly flexible, it
Xin Liu   +6 more
doaj   +1 more source

Energy Backflow in Tightly Focused Fractional Order Vector Vortex Beams with Binary Topological Charges

open access: yesPhotonics, 2023
Using the Richards–Wolf diffraction integral, the longitudinal energy evolution on the focal plane of the fractional order vector vortex (FOVV) beams was studied. These beams possessed a vortex topological charge n and a polarization topological charge m,
Yan Wu, Xiaobo Hu, Yuhua Li, Ruipin Chen
doaj   +1 more source

The Impact of Polar Vortex Strength on the Longitudinal Structure of the Noontime Mid-Latitude Ionosphere and Thermosphere

open access: yesRemote Sensing
Ground-based ionospheric, CHAMP/STAR, and GOCE satellite neutral density ρ observations under deep solar minimum conditions were used to find whether there is a dependence of longitudinal variations on polar vortex strength. Ionospheric stations at fixed-
Loredana Perrone, Andrey Mikhailov
doaj   +1 more source

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

Study on Flow Structure Characteristics Along the Latticework Duct Subchannels and Classification Boundary Prediction

open access: yesAerospace
To reasonably divide the types of flow units along the latticework subchannel, one must prepare for the establishment of a one-dimensional fluid network model of the latticework in the middle region of the turbine blade.
Minlong Li   +4 more
doaj   +1 more source

Effect of perforated concave delta winglet vortex generators on heat transfer augmentation of fluid flow inside a rectangular channel: An experimental study

open access: yesMATEC Web of Conferences, 2018
Compact heat exchanger with gas as a heat exchange medium is widely used in power plants, automotive, air conditioning, and others. However, the gas has a low thermal conductivity resulting in high thermal resistance causing a low rate of heat transfer ...
Syaiful   +4 more
doaj   +1 more source

Active control of flows around a bluff body with yaw angle by inducing longitudinal vortices using plasma actuators

open access: yesNihon Kikai Gakkai ronbunshu
Active control of flow separation on a bluff body model utilizing dielectric barrier discharge plasma actuators (DBD-PAs) was experimentally demonstrated at Re = 28,000. The model consisting of a flat side plate and a quarter cylinder with a radius of 84.
Ryuya IMAI, Takehiko SEGAWA
doaj   +1 more source

Hall Anomaly and Vortex-Lattice Melting in Superconducting Single Crystal YBa2Cu3O7-d

open access: yes, 1998
Sub-nanovolt resolution longitudinal and Hall voltages are measured in an ultra pure YBa2Cu3O7-d single crystal. The Hall anomaly and the first-order vortex-lattice melting transition are observed simultaneously.
A. Erb   +35 more
core   +2 more sources

Universality of Longitudinal Vortices Shedding from a Cruciform Two Circular Cylinder System in Uniform Flow

open access: yesJournal of Fluid Science and Technology, 2010
Earlier wind tunnel experiments supported by visualization in water flow carried out by the present authors showed that two types of longitudinal vortices shed periodically from a cruciform two identical circular cylinder system in uniform flow.
Tuananh NGUYEN   +3 more
doaj   +1 more source

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