Results 41 to 50 of about 1,103,131 (296)

Classical aspects of Hawking radiation verified in analogue gravity experiment

, 2013
There is an analogy between the propagation of fields on a curved spacetime and shallow water waves in an open channel flow. By placing a streamlined obstacle into an open channel flow we create a region of high velocity over the obstacle that can ...
A. Einsten, C. Barceló, C. Barceló, E.W. Tedford, G. Rousseaux, G. Rousseaux, G.A. Lawrence, H.A. Haus, K.V. Kheruntsyan, R. Brout, R. Schützhold, R.J. Adrian, S. Corley, S.B. Carr, S.W. Hawking, T. Jacobson, W.G. Unruh, W.G. Unruh, W.G. Unruh, W.G. Unruh, W.G. Unruh   +20 more
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Simulation of solute transport in Pingjiang karst underground river

Shuiwen dizhi gongcheng dizhi
The flow rate of the Pingjiang Underground River exhibits rapid fluctuations during rainy seasons, yet the variation patterns of solute transport with flow changes remain unclear.
Jiang LIANG, Weichang BEI, Huanjun ZHENG, Qinjun ZHANG, Zhiqiang KANG, Xiaoer ZHAO   +5 more
doaj   +1 more source

Compact fluid-flow restrictor [PDF]

, 1970
Fluid-flow restrictor has degree of restriction easily and accurately controlled during manufacture. Restrictor's flow channel is machined square thread around a solid slug which is shrink-fitted to cylindrical case.
Sheere, R. W.
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Explicit equations for critical depth in open channels with complex compound cross sections. A discussion [PDF]

, 2013
In open channel hydraulics, the notion of critical flow conditions and critical depth are not restricted to open channel flows with hydrostatic pressure distributions. This contribution shows an extension of the concept of critical flow conditions linked
Bakhmeteff, Chanson, Chanson, Chanson, Henderson, Hubert Chanson, Liggett   +6 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Quantifying flow and velocity distributions in open channels with varied roughness and slopes: a modelling approach

Water Science, 2023
Understanding flow and velocity distributions in open channels is important for designing various hydraulic structures. This study focuses on modeling the flow and velocity distributions along with different open channel roughness (steel and concrete ...
Hajir Al Hindasi, Eyad Abushandi
doaj   +1 more source

Influence of hydraulic resistance on flow features in an open channel confluence [PDF]

, 2014
A numerical model based on the 3D shallow water equations is set up for a 90° angle open channel confluence. The model is first calibrated and validated using experimental data by (Shumate, 1998).
Creëlle, Stéphan, De Mulder, Tom, Schindfessel, Laurent, Van Oyen, Tomas   +3 more
core  

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source