Results 101 to 110 of about 1,584,375 (297)

Taylor–Couette flow of a fractional second grade fluid in an annulus due to a time-dependent couple

Nonlinear Analysis, 2011
Exact solutions for the velocity field and the associated shear stress, corresponding to the flow of a fractional second grade fluid between two infinite coaxial cylinders, are determined by means of Laplace and finite Hankel transforms.
M. Imran, M. Kamran, M. Athar, A. A. Zafar   +3 more
doaj  

Contribution of PPP with Ambiguity Resolution to the Maintenance of Terrestrial Reference Frame

Remote Sensing
Precise Point Positioning (PPP) provides static positioning at the millimeter level and kinematic positioning ranging from millimeters to decimeters globally.
Ruyuan Wang, Junping Chen, Yize Zhang, Weijie Tan, Xinhao Liao   +4 more
doaj   +1 more source

Study of vortex state of the atmosphere

Наука. Инновации. Технологии, 2022
The earth's atmosphere as a whole has a very complex system of movements, changing over time. The main features of these movements from year to year are repeated and are well represented on medium and climate maps, which are the source for conclusions ...
Julia Alexandrovna Semenova, Robert Gurgenovich Zakinayn, Julia Leontievna Smerek, Nina Evgenevna Danilova, Arthur Robertovich Zakinayn   +4 more
doaj  

Investigation into the selection of viewing configurations for three-component planar Doppler velocimetry measurements. [PDF]

, 2007
A method for the calculation of three orthogonal velocity components in planar Doppler velocimetry (PDV) using four or more measured velocity components (to the three typically used) is presented.
Charrett, Thomas O. H., Nobes, David S., Tatam, Ralph P.   +2 more
core  

Velocity fluctuations in cooling granular gases

, 2003
We study the formation and the dynamics of correlations in the velocity field for 1D and 2D cooling granular gases with the assumption of negligible density fluctuations (``Homogeneous Velocity-correlated Cooling State'', HVCS).
Baldassarri, Andrea, Marconi, Umberto Marini Bettolo, Puglisi, Andrea   +2 more
core   +2 more sources

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Study of the Discharge Stream from a Standard Rushton turbine impeller

Acta Polytechnica, 2004
The discharge stream from a standard Rushton turbine impeller exhibits special flow properties different from the characteristics of the velocity field in other parts of the volume of an agitated liquid in a cylindrical baffled vessel, e.g.
J. Kratěna, I. Fořt
doaj  

Ordering dynamics of self-propelled particles in an inhomogeneous medium

, 2018
Ordering dynamics of self-propelled particles in an inhomogeneous medium in two-dimensions is studied. We write coarse-grained hydrodynamic equations of motion for coarse-grained density and velocity fields in the presence of an external random disorder ...
Das, Rakesh, Mishra, Shradha, Puri, Sanjay   +2 more
core   +1 more source

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp, Ludwig Karrasch, Helena Breitenstein, Andreas Straube, Katharina Kamm   +4 more
wiley   +1 more source

The Hierarchical Structure and Dynamics of Voids

, 2012
Contrary to the common view voids have very complex internal structure and dynamics. Here we show how the hierarchy of structures in the density field inside voids is reflected by a similar hierarchy of structures in the velocity field.
A. S. Szalay, Aaronson, Aragon-Calvo, Aragon-Calvo, Aragón-Calvo, Bardeen, Beacom, Bernardeau, Bertschinger, Bertschinger, Biswas, Blumenthal, Bond, Bond, Ceccarelli, Chongchitnan, Colberg, Colberg, Colberg, Colless, Dekel, Doroshkevich, Dressler, Dubinski, Einasto, Einasto, Einasto, Einasto, Einasto, Fillmore, Florack, Furlanetto, Gauch, Geller, Gottlöber, Hausman, Hoffman, Icke, Joeveer, Karachentsev, Kereš, Kirshner, Klypin, Klypin, Klypin, Kofman, Kreckel, Kreckel, Kreckel, Lacey, Lavaux, Lee, Little, Lynden-Bell, M. A. Aragon-Calvo, Mathis, Melott, Melott, Melott, Moore, Nasonova, Neyrinck, Padilla, Paranjape, Park, Patiri, Peebles, Peimbert, Platen, Platen, Romano-Diaz, Romano-Díaz, Sahni, Sato, Schaap, Schaap, Shandarin, Shaya, Sheth, Sheth, Slezak, Sousbie, Springel, Springel, Stanonik, Suhhonenko, Suto, Szomoru, Szomoru, Szomoru, Tarenghi, Tifft, Tully, Tully, van de Weygaert, van de Weygaert, van de Weygaert, van de Weygaert, van de Weygaert, Weistrop, Weistrop, Wong, Zel'dovich, Zeldovich   +103 more
core   +1 more source