Results 51 to 60 of about 7,146,269 (348)

Velocity Correlations in Dense Granular Flows [PDF]

Physical Review Letters, 2004
Velocity fluctuations of grains flowing down a rough inclined plane are experimentally studied. The grains at the free surface exhibit fluctuating motions, which are correlated over few grains diameters. The characteristic correlation length is shown to depend on the inclination of the plane and not on the thickness of the flowing layer.
openaire   +4 more sources

Fish responses to flow velocity and turbulence in relation to size, sex and parasite load

Journal of the Royal Society Interface, 2014
Riverine fish are subjected to heterogeneous flow velocities and turbulence and may use this to their advantage by selecting regions that balance energy expenditure for station holding while maximizing energy gain through feeding opportunities.
F. A. Hockley, C. Wilson, A. Brew, J. Cable   +3 more
semanticscholar   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Aerodynamic Characteristics of High-speed Train Pantographs Based on Jet Flow Control [PDF]

Journal of Applied Fluid Mechanics
The pantograph is a critical instrument that significantly affects the aerodynamics of high-speed trains, posing a considerable challenge to the energy conservation and environmental protection of trains.
S. Huang, B. D. Zhang, Z. W. Li, J. P. Zhao, W. J. Peng, J. R. Lin   +5 more
doaj   +1 more source

Three-Dimensional Relativistic Magnetohydrodynamic Simulations of Current-Driven Instability with A Sub-Alfvenic Jet: Temporal Properties

, 2011
We have investigated the influence of a velocity shear surface on the linear and non-linear development of the CD kink instability of force-free helical magnetic equilibria in 3D.
Aloy, Anile, Antón, Appl, Bateman, Baty, Beckwith, Begelman, Blandford, Blandford, Bromberg, Carey, De Villiers, De Villiers, Georganopoulos, Gómez, Hardee, Hawley, Istomin, Istomin, Ken-Ichi Nishikawa, Lery, Lyubarsky, McKinney, Mizuno, Mizuno, Mizuno, Mizuno, Mizuno, Mészáros, Nakamura, Nakamura, Narayan, Ouyed, Philip E. Hardee, Weisskopf, Yosuke Mizuno   +36 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Method for driving two-phase turbines with enhanced efficiency [PDF]

, 1985
A method for driving a two phase turbine characterized by an output shaft having at least one stage including a bladed rotor connected in driving relation with the shaft is described.
Elliott, D. G.
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Increased macular choroidal blood flow velocity during systemic corticosteroid therapy in a patient with acute macular neuroretinopathy

Clinical Ophthalmology, 2012
Yuki Hashimoto,1 Wataru Saito,1,2 Shohei Mori,1 Michiyuki Saito,1 Susumu Ishida1,21Department of Ophthalmology, 2Department of Ocular Circulation and Metabolism, Hokkaido University Graduate School of Medicine, Sapporo, JapanPurpose: The precise ...
Hashimoto Y, Saito W, Mori S, Saito M, Ishida S   +4 more
doaj  

Force-velocity correlations in a dense, collisional, granular flow [PDF]

, 2005
We report measurements in a 2-dimensional, gravity-driven, collisional, granular flow of the normal force delivered to the wall and of particle velocity at several points in the flow. The wall force and the flow velocity are negatively correlated.
Dragulin, Sonia, Easwar, Nalini, Gardel, Emily, Keene, Ellen, Menon, Narayanan   +4 more
core   +2 more sources