Results 71 to 80 of about 11,997,578 (311)

Turbulence and Singularity of the Velocity Field

open access: yesPublications of the Research Institute for Mathematical Sciences, 1983
The small-scale properties of turbulence are related to the singularity of the velocity field in the inviscid limit. The energy spectrum in the inertial range is expressed in terms of the fractal dimension and Holder's exponent of the singularity. It is pointed out that the entrainment process is important in the dynamics of active
openaire   +3 more sources

VELOCITY GRADIENTS AS A TRACER FOR MAGNETIC FIELDS [PDF]

open access: yesThe Astrophysical Journal, 2017
Strong Alfvénic turbulence develops eddy-like motions perpendicular to the local direction of magnetic fields. This local alignment induces velocity gradients perpendicular to the local direction of the magnetic field. We use this fact to propose a new technique of studying the direction of magnetic fields from observations, the Velocity Gradient ...
González-Casanova, Diego F.   +1 more
openaire   +2 more sources

Score-Based Conditional Flow Models for MIMO Receiver Design With Superimposed Pilots

open access: yesIEEE Open Journal of the Communications Society
Accurate channel state information (CSI) is vital for multiple-input multiple-output (MIMO) systems. However, superimposed pilots (SIP), which reduce overhead, introduce severe pilot contamination and data interference, complicating joint channel ...
Ruhao Zhang   +6 more
doaj   +1 more source

Experimental Investigation on the Influence of a Double-Walled Confined Width on the Velocity Field of a Submerged Waterjet

open access: yesApplied Sciences, 2017
The current research on confined submerged waterjets mainly focuses on the flow field of the impinging jet and wall jet. The double-sided wall vertically confined waterjet, which is widely used in many fields such as mining, cleaning and surface ...
Xiaolong Ding   +4 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

The Velocity Field Olympics: assessing velocity field reconstructions with direct distance tracers

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT The peculiar velocity field of the local Universe provides direct insights into its matter distribution and the underlying theory of gravity, and is essential in cosmological analyses for modelling deviations from the Hubble flow.
Richard Stiskalek   +7 more
openaire   +3 more sources

Comparative study between turbulence models in curved channels

open access: yesRBRH
This paper presents a comparative study between results obtained in two-dimensional computational simulations performed with three different turbulence models: constant viscosity; Elder Model and k˗Ꜫ Model.
José Rodolfo Machado de Almeida   +1 more
doaj   +1 more source

A statistical search for detection of possible rigid blocks in the Arabia-Eurasia oblique collision zone (Iran)

open access: yesJournal of Geodetic Science, 2013
In this research an investigation has been done to determine the possible more rigid blocks in the region of Iran based on the Euler pole estimations.
Nozari M., Voosoghi B., Rastbood A.
doaj   +1 more source

On Optimisation Approach to Velocity Field Determination in Image Processing Problems

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2018
The problem of determining the velocity field is investigated. This problem is considered by many authors in various formulations. The most well-known statement of the problem is proposed with the use of a concept of optical flow of constant distribution
P.V. Bazhanov, E.D. Kotina
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

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