نتایج جستجو برای: capillary transport
تعداد نتایج: 310458 فیلتر نتایج به سال:
Trees transport water from roots to crown—a height that can exceed 100 m. The physics of tree hydraulics can be conveyed with simple fluid dynamics based upon the Hagen–Poiseuille equation and Murray’s law. Here the conduit structure is modelled as conical pipes and as branching pipes. The force required to lift sap is generated mostly by transpiration or capillary action; we investigate the ef...
We have sought to identify a high-capacity transport system that mediates transcytosis of proteins from the blood to the brain. The 39 kDa receptor-associated protein (RAP) functions as a specialized endoplasmic reticulum chaperone assisting in the folding and trafficking of members of the low-density lipoprotein (LDL) receptor family. RAP efficiently binds to these receptors and antagonizes bi...
conclusions the early signs and symptoms of iscls may be subtle; therefore the diagnosis can easily be missed and prompt treatment of the syndrome may be postponed. thus, the clinician must consider iscls in differential diagnosis in cases of hypotension, hemoconcentration, and hypoalbuminemia. case presentation we present a 58-year-old female who presented with peripheral edema, leg pain, and ...
We show experimentally that the sliding friction on sand is greatly reduced by the addition of some-but not too much-water. The formation of capillary water bridges increases the shear modulus of the sand, which facilitates the sliding. Too much water, on the other hand, makes the capillary bridges coalesce, resulting in a decrease of the modulus; in this case, we observe that the friction coef...
Lung diffusing capacity (DL) for carbon monoxide (DLCO), nitric oxide (DLNO) or oxygen (DLO2) increases from rest to peak exercise without reaching an upper limit; this recruitment results from interactions among alveolar volume (VA), and cardiac output (q), as well as changing physical properties and spatial distribution of capillary erythrocytes, and is critical for maintaining a normal arter...
We have developed an optofluidic device that improves the sensitivity of surface enhanced Raman spectroscopy (SERS) when compared to other SERS approaches. This device has a pinched and step microchannel-nanochannel junction that can trap and assemble nanoparticles/target molecules into optically enhanced SERS active clusters by using capillary force. These SERS active clusters provide an elect...
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