منابع مشابه
A new approach for the limit to tree height using a liquid nanolayer model
Liquids in contact with solids are submitted to intermolecular forces inferring density gradients at the walls. The van der Waals forces make liquid heterogeneous, the stress tensor is not any more spherical as in homogeneous bulks and it is possible to obtain stable thin liquid films wetting vertical walls up to altitudes that incompressible fluid models are not forecasting. Application to mic...
متن کاملCorrigendum: The height limit of a siphon
We wish to acknowledge a related 1995 experiment performed by Andrew K Fletcher (http://inclinedbedtherapy. com), in which a 48 m length of 6 mm bore tubing, filled with degassed water was lifted 24 m vertical against Brixham Cliffs. A 50 ml bolus of coloured saline solution in the middle of the 48 m tubing was introduced prior to the tubing being raised to 24 metres vertical by its centre as a...
متن کاملThe height limit of a siphon
The maximum height of a siphon is generally assumed to be dependent on barometric pressure-about 10 m at sea level. This limit arises because the pressure in a siphon above the upper reservoir level is below the ambient pressure, and when the height of a siphon approaches 10 m, the pressure at the crown of the siphon falls below the vapour pressure of water causing water to boil breaking the co...
متن کاملThe height of the Lyndon tree
We consider the set Ln of n-letters long Lyndon words on the alphabet A = {0, 1}. For a random uniform element Ln of the set Ln, the binary tree L(Ln) obtained by successive standard factorization of Ln and of the factors produced by these factorization is the Lyndon tree of Ln. We prove that the height Hn of L(Ln) satisfies
متن کاملLimitations within "The Limits to Tree Height"1.
Koch et al. (Nature 428: 851-854) measured various parameters that were thought to limit the height of Sequoia sempervirens from northern California and concluded that the maximum height for this species is 122-130 m because within this range: (1) Irreversible embolism formation was proposed to occur when the xylem pressure was less than -1.9 MPa. (2) The leaf mass to area ratio exponentially a...
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ژورنال
عنوان ژورنال: BioScience
سال: 1997
ISSN: 0006-3568,1525-3244
DOI: 10.2307/1313091