Vacancy-induced flow of solid helium

2016 ◽  
Vol 93 (10) ◽  
Author(s):  
Giorgio Benedek ◽  
Anton Kalinin ◽  
Pablo Nieto ◽  
J. Peter Toennies
Keyword(s):  
Solid Helium ◽  
Induced Flow

Mobility of ions in solid helium

1973 ◽  
Vol 34 (11-12) ◽  
pp. 989-999 ◽  
Author(s):  
D. Marty ◽  
F.I.B. Williams
Keyword(s):  
Solid Helium ◽  
Mobility Of Ions

Relaxation-induced flow in a smooth fracture for Ellis rheology

2021 ◽  
pp. 103914
Author(s):  
Valentina Ciriello ◽  
Alessandro Lenci ◽  
Sandro Longo ◽  
Vittorio Di Federico
Keyword(s):  
Induced Flow

Focal TLR4 activation mediates disturbed flow-induced endothelial inflammation

2019 ◽  
Vol 116 (1) ◽  
pp. 226-236 ◽  
Author(s):  
Dan Qu ◽  
Li Wang ◽  
Mingyu Huo ◽  
Wencong Song ◽  
Chi-Wai Lau ◽  
...  
Keyword(s):  
Vascular Inflammation ◽  
Subsequent Development ◽  
Tlr4 Expression ◽  
Disturbed Flow ◽  
Atherosclerotic Lesions ◽  
Endothelial Inflammation ◽  
En Face ◽  
Induced Flow ◽  
Tlr4 Activation

Abstract Aims Disturbed blood flow at arterial branches and curvatures modulates endothelial function and predisposes the region to endothelial inflammation and subsequent development of atherosclerotic lesions. Activation of the endothelial Toll-like receptors (TLRs), in particular TLR4, contributes to vascular inflammation. Therefore, we investigate whether TLR4 can sense disturbed flow (DF) to mediate the subsequent endothelial inflammation. Methods and results En face staining of endothelium revealed that TLR4 expression, activation, and its downstream inflammatory markers were elevated in mouse aortic arch compared with thoracic aorta, which were absent in Tlr4mut mice. Similar results were observed in the partial carotid ligation model where TLR4 signalling was activated in response to ligation-induced flow disturbance in mouse carotid arteries, and such effect was attenuated in Tlr4mut mice. DF in vitro increased TLR4 expression and activation in human endothelial cells (ECs) and promoted monocyte-EC adhesion, which were inhibited in TLR4-knockdown ECs. Among endogenous TLR4 ligands examined as candidate mediators of DF-induced TLR4 activation, fibronectin containing the extra domain A (FN-EDA) expressed by ECs was increased by DF and was revealed to directly interact with and activate TLR4. Conclusion Our findings demonstrate the indispensable role of TLR4 in DF-induced endothelial inflammation and pinpoint FN-EDA as the endogenous TLR4 activator in this scenario. This novel mechanism of vascular inflammation under DF condition may serve as a critical initiating step in atherogenesis.

Binary alloy solidification and freckle formation: Effect of shrinkage induced flow on solutal instability and macro-segregation

2021 ◽  
Vol 33 (3) ◽  
pp. 037108
Author(s):  
Aniket D. Monde ◽  
Amit Shrivastava ◽  
Amman Jakhar ◽  
Prodyut R. Chakraborty
Keyword(s):  
Binary Alloy ◽  
Alloy Solidification ◽  
Freckle Formation ◽  
Induced Flow

The benefits of induced flow solar powered water pumps

Solar Energy ◽  
2003 ◽  
Vol 74 (1) ◽  
pp. 77-84 ◽  
Author(s):  
T.D Short ◽  
J.D Burton
Keyword(s):  
Induced Flow ◽  
Solar Powered ◽  
Water Pumps

Investigation of methods for modeling propeller-induced flow fields

1993 ◽  
Author(s):  
G. SCHIPHOLT ◽  
N. VOOGT ◽  
J. VAN HENGST
Keyword(s):  
Flow Fields ◽  
Induced Flow

Chaotic mixing by oscillating a Stokeslet in a circular Hele-Shaw microfluidic device

2016 ◽  
Vol 5 (1) ◽  
pp. 1-8
Author(s):  
Yasser Aboelkassem
Keyword(s):  
Mathematical Modeling ◽  
Stream Function ◽  
Microfluidic Device ◽  
Fourier Expansion ◽  
Expansion Method ◽  
Small Oscillation ◽  
Chaotic Mixing ◽  
Mixing Efficiency ◽  
Induced Flow ◽  
Mixing Patterns

AbstractChaotic mixing by oscillating a Stokeslet in a circular Hele-Shaw microffluidic device is presented in this article. Mathematical modeling for the induced flow motions by moving a Stokeslet along the x-axis is derived using Fourier expansion method. The solution is formulated in terms of the velocity stream function. The model is then used to explore different stirring dynamics as function of the Stokeslet parameters. For instance, the effects of using various oscillation amplitudes and force strengths are investigated. Mixing patterns using Poincaré maps are obtained numerically and have been used to characterize the mixing efficiency. Results have shown that, for a given Stokeslet’s strength, efficient mixing can be obtained when small oscillation amplitudes are used. The present mixing platform is expected to be useful for many of biomicrofluidic applications.

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