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How do birds breathe so efficiently? Looped airways facilitate air flows（图）
birds breathe efficiently Looped airways facilitate air flows
2021/4/9
Birds breathe with greater efficiency than humans because of the structure of their lungs --looped airways that facilitate air flows that go in one direction -- a team of researchers has found. The re...
Thawing permafrost affects Alaska's land-to-ocean river flows（图）
Thawing permafrost Alaska land-to-ocean river flows
2020/1/21
A new analysis of the hydrologic cycle across the North Slope of Alaska reveals significant increases in subsurface runoff and cold season discharge -- changes scientists say reflect thawing permafros...
Dispersion of swimming algae in laminar and turbulent channel flows: theory and simulations
algae swimming microorganisms Taylor dispersion DNS turbulent transport bioreactors
2012/5/31
Algal swimming is often biased by environmental cues, e.g. gravitational and viscous torques drive cells towards downwelling fluid (gyrotaxis). In view of biotechnological applications, it is importan...
3-D Numerical Simulations of Biofilm Flows
Biofilm Cahn-Hilliard equation phase filed finite difference method multiphase flow
2014/5/28
We study the biofilm-flow interaction resulting in biofilm growth and deformation in a water channel in a 3-D setting using the phase field model developed recently [28, 29]. In this biofilm model, th...
Flows in complex biochemical networks: Role of low degree nodes
Flows complex biochemical networks low degree nodes
2011/1/5
Metabolic networks have two properties that are generally regarded as unrelated: One, they have metabolic reactions whose single knockout is lethal for the organism, and two, they have correlated sets...