Results 51 to 60 of about 4,829,865 (391)
Persistent Laminar Flow at Reynolds Numbers Exceeding 100,000 [PDF]
arXiv, 2022 Accurate prediction of the transition from laminar flow to turbulence remains an unresolved challenge despite its importance for understanding a variety of environmental, biological, and industrial phenomena. Well over a century of concerted effort has aimed toward a quantitative, mechanistic explanation of Osborne Reynolds' seminal observation of ...
arxiv
High Pressure Torsion: from Laminar Flow to Turbulence
, 2017 We analyzed experimentally and theoretically deviations from the simple High Pressure Torsion (HPT) scheme. We showed that the nature of the plastic flow and the deformed state of the sample under HPT depends on the structure and mechanical properties of
R. Kulagin +4 more
semanticscholar +1 more source
Stem Cell Research & TherapyBackground The therapeutic status of allogeneic stem cell transplantation (allo-SCT) as a post-remission treatment for patients with high-risk acute myeloid leukemia (AML) was well-accepted. However, the optimal treatment for patients with low/favorable-
Wu Ye +7 more
doaj +1 more source
Visualizing the spatiotemporal map of Rac activation in bovine aortic endothelial cells under laminar and disturbed flows. [PDF]
PLoS ONE, 2017 Disturbed flow can eliminate the alignment of endothelial cells in the direction of laminar flow, and significantly impacts on atherosclerosis in collateral arteries near the bifurcation and high curvature regions. While shear stress induced Rac polarity
Shuai Shao +5 more
doaj +1 more source
On the nature of laminar-turbulence intermittency in shear flows [PDF]
Physical Review E 87(6), 063012 (2013), 2013 In pipe, channel and boundary layer flows turbulence first occurs intermittently in space and time: at moderate Reynolds numbers domains of disordered turbulent motion are separated by quiescent laminar regions. Based on direct numerical simulations of pipe flow we here argue that the spatial intermittency has its origin in a nearest neighbor ...
arxiv +1 more source
Natural Laminar Flow Design for Wings with Moderate Sweep
, 2016 A new method for the aerodynamic design of wings with natural laminar flow is under development at the NASA Langley Research Center. The approach involves the addition of new flow constraints to an existing knowledge-based design module for use with ...
R. L. Campbell, Michelle N. Lynde
semanticscholar +1 more source
FEBS Open Bio, EarlyView.The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik +3 more
wiley +1 more source
Intermittency in the transition to turbulence [PDF]
, 2003 It is commonly known that the intermittent transition from laminar to turbulent flow in pipes occurs because, at intermediate values of a prescribed pressure drop, a purely laminar flow offers too little resistance, but a fully turbulent one offers too ...
Fowler, A. C., Howell, P. D.
core +2 more sources
Advanced Biology, EarlyView.In this article, the establishment and characterization of a self‐assembled 3D BBB spheroid model using human induced pluripotent stem cell (hiPSC)‐derived and primary cells is reported. Spheroids demonstrate in‐vivo like tight junction ultrastructure and, in comparison to 2D mono‐cultures, higher transcript expression of BBB specific genes.
Sanjana Mathew‐Schmitt +10 more
wiley +1 more source
The History of the Slotted Natural-Laminar-Flow Airfoil for Improved Fuel Efficiency
AerospaceIt is well established that increasing vehicle efficiency enables the achievement of N + 3 sustainable air travel goals. To this end, the integration of a slotted natural-laminar-flow airfoil with a transonic, truss-based commercial wing configuration is
Sreya Kumpatla +2 more
doaj +1 more source