منابع مشابه
Profile of jeffery L. Dangl.
I f you make the mistake, as some do, of calling Jeff Dangl a botanist, his embarrassment is palpable. Trained as a mouse immunologist, he admits to a “certain lack” of botanical knowledge. The John N. Couch distinguished professor of biology and adjunct professor of microbiology and immunology at the University of North Carolina, Chapel Hill, will, however, give you an earful about the lack of...
متن کاملPerturbations of the Coupled Jeffery-stokes Equations
This paper seeks to provide clues as to why experimental evidence for the alignment of fibers in semi-dilute suspensions under shear flows does not match theoretical predictions. This paper posits that it is the coupling between Jeffery’s equation and Stokes’ equation that causes the deviation from theory. It is proposed that if the initial data is slightly non-uniform, then there is feedback v...
متن کاملPerturbations of the Coupled Jeffery-stokes Equations
This paper seeks to provide clues as to why experimental evidence for the alignment of fibers in semi-dilute suspensions under shear flows does not match theoretical predictions. This paper posits that it is the coupling between Jeffery’s equation and Stokes’ equation that causes the deviation from theory. It is proposed that if the initial data is slightly non-uniform, then there is feedback v...
متن کاملOn Pólya’s Orchard Problem
In 1918 Pólya formulated the following problem: “How thick must the trunks of the trees in a regularly spaced circular orchard grow if they are to block completely the view from the center?”(Pólya and Szegő [2]). We study a more general orchard model, namely any domain that is compact and convex, and find an expression for the minimal radius of the trees. As examples, solutions for rhombus-shap...
متن کاملAn Orchard Theorem
We describe a natural way to plant cherryand plumtrees at prescribed generic locations in an orchard.
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ژورنال
عنوان ژورنال: Iraq
سال: 2016
ISSN: 0021-0889,2053-4744
DOI: 10.1017/irq.2016.12