Results 31 to 40 of about 1,997,150 (223)

Theoretical Model of Tangential Contact Stiffness and Damping of Solid-Liquid Interface in Macroscopic Relative Motion

open access: yesIEEE Access, 2023
The macroscopic relative motion solid-liquid interface widely exists in the contact motion pairs of machine tools and other mechanical equipment. In order to accurately obtain the tangential contact stiffness and damping parameters, the Savkoor asperity ...
Lixia Peng   +5 more
doaj   +1 more source

Tangential Velocity Measurement Using Interferometric MTI Radar [PDF]

open access: yes, 2002
An Interferometric Moving Target Indicator radar can be used to measure the tangential velocity component of a moving target. Multiple baselines, along with the conventional radial velocity measurement, allow estimating the true 3-D velocity vector of a target.
Doerry, Armin W.   +2 more
openaire   +2 more sources

Effects of Tangential Velocity in the Reactive Relativistic Riemann Problem [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract Type I X-ray bursts are thermonuclear burning events that occur on the surfaces of accreting neutron stars. Burning begins in a localized spot in the star’s ocean layer before propagating across the entire surface as a deflagration. On the scale of the entire star, the burning front can be thought of as discontinuity.
A. Harpole, I. Hawke
openaire   +3 more sources

MEAN-LINE FLOW MODEL OF VISCOUS LIQUIDS IN A VORTEX PUMP

open access: yesTASK Quarterly, 2023
The axial, radial and tangential velocity profiles of six fluids were extracted from computational fluid dynamics simulation results at points in a pump chamber 1 mm distant from the blades in a vortex pump at the specific speed of 76.
WENGUANG LI
doaj   +1 more source

Experimental investigation on free surface vortices driven by tangential inlets [PDF]

open access: yes, 2016
Particle Image Velocimetry (PIV) measurements have been carried out in order to analyze the structure of free surface vortices in a promoting geometry with two tangential inlets. Velocity fields associated to the free surface vortex have been obtained at
Caruso, Gianfranco   +3 more
core   +1 more source

Perceptual judgments of duration of parabolic motions

open access: yesScientific Reports, 2021
In a 2-alternative forced-choice protocol, observers judged the duration of ball motions shown on an immersive virtual-reality display as approaching in the sagittal plane along parabolic trajectories compatible with Earth gravity effects.
Björn Jörges   +4 more
doaj   +1 more source

TANGENTIAL VELOCITY OF THE DARK MATTER IN THE BULLET CLUSTER FROM PRECISE LENSED IMAGE REDSHIFTS [PDF]

open access: yes, 2013
We show that the fast-moving component of the “Bullet Cluster” (1E0657-56) can induce potentially resolvable redshift differences between multiply lensed images of background galaxies.
S. Molnar   +31 more
semanticscholar   +1 more source

Galactic rotation curves in modified gravity with non-minimal coupling between matter and geometry [PDF]

open access: yes, 2010
We investigate the possibility that the behavior of the rotational velocities of test particles gravitating around galaxies can be explained in the framework of modified gravity models with non-minimal matter-geometry coupling. Generally, the dynamics of
H. A. Buchdahl   +5 more
core   +2 more sources

The Tangential Velocity Estimation Algorithm for Space-borne SAR

open access: yesJournal of Physics: Conference Series, 2021
Abstract This article presents a discussion of one of the important areas of application of synthetic aperture radars (SAR) – the moving target indication (MTI) mode. The principle of trajectory signal processing in MTI systems is based on the estimation of the Doppler frequency or phase shift of the echo signals due to the movement of ...
K K Khramov, E F Tolstov, V V Kostrov
openaire   +1 more source

R fluids [PDF]

open access: yes, 2007
A theory of collisionless fluids is developed in a unified picture, where nonrotating figures with anisotropic random velocity component distributions and rotating figures with isotropic random velocity component distributions, make adjoints ...
Caimmi, R.
core   +5 more sources

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