Results 251 to 260 of about 302,667 (302)

Feasibility of Golden Angle Spiral Real-Time Phase Contrast MRI at 0.55T: A Single-Center Prospective Study. [PDF]

open access: yesBioengineering (Basel)
Pervaiz S   +9 more
europepmc   +1 more source

Trends in vertical wind velocity variability reveal cloud microphysical feedback. [PDF]

open access: yesNat Commun
Barahona D   +5 more
europepmc   +1 more source

Terminal velocities of ice crystals

Quarterly Journal of the Royal Meteorological Society, 1972
AbstractThe terminal velocities of small plate‐like and columnar ice crystals have been measured experimentally. Good agreement was found between theory and experiment.
K. O. L. F. Jayaweera, B. F. Ryan
openaire   +2 more sources

Acoustically derived ice-fracture velocity in central Arctic pack ice

The Journal of the Acoustical Society of America, 2000
Sounds radiated by fractures in Arctic ice (called acoustic events) are used to estimate fracture velocity. Both speed and orientation are obtained by measuring Doppler shifts induced by source motion. Data from the SIMI experiment of 1994 in the central Arctic are used in the frequency window 10 to 350 Hz.
C, Stamoulis, I, Dyer
openaire   +2 more sources

Ice Velocity Effects and Ice Force Scaling

2001
The paper explores the scaling of velocity effects in ice-structure interaction, and attempts to link it to the underlying mechanics through dimensional analysis. It first examines the well-known example of flow in pipes, and uses that analogy to emphasise that too much should not be expected of scaling, and that any attempt to find a universal scaling
Andrew Palmer, Innes Johnston
openaire   +1 more source

Radial velocity observations of IC 410

Astrophysics and Space Science, 1980
The velocity of the ionized gas has been obtained at many positions over the H II region IC 410 (S 236) using a pressure scanned Fabry-Perot polychromator/imager. The structure of the object is discussed and its possible association with a nearby supernova remnant discounted.
P. G. Johnson, N. J. White
openaire   +1 more source

Ejection Velocity of Ice Impact Fragments

Icarus, 1995
Abstract Laboratory experiments on the impact disruption of ice were carried out to investigate the collisional phenomena of an icy planet. Ice projectiles were impacted on ice targets at impact velocities of 30 to 530 m/sec, and mass ratios of the projectile to the target of 0.1 to 0.0035.
Masahiko Arakawa   +4 more
openaire   +1 more source

The friction of ice on ice at low sliding velocities

Philosophical Magazine A, 2000
Abstract The kinetic coefficient of friction μ has been measured for both freshwater, granular ice and saltwater, columnar ice sliding against itself. The variables were ambient temperature (−3°C to −40°C), sliding velocity (5 × 10−7 −5 × 10−2 ms−1), normal pressure (0.007–1.0 MPa) and grain size (2.5–6.0 mm).
F. E. Kennedy   +2 more
openaire   +2 more sources

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