Now showing items 21-30 of 639
(Virginia Tech, 2000)
This is the alumni magazine of the Department of Chemistry at Virginia Tech. Inside: Gary Cook reveals the places a chemist can go. Plus: Harry Dorn helps create a new molecule family: a wheel within a ball.
chaotic advection, diffusion, and reactions in open flows
(AIP Publishing, 2000-03)
We review and generalize recent results on advection of particles in open time-periodic hydrodynamical flows. First, the problem of passive advection is considered, and its fractal and chaotic nature is pointed out. Next, ...
Complexity, fractals, disease time, and cancer
(American Physical Society, 2004-12)
Despite many years of research, a method to precisely and quantitatively determine cancer disease state remains elusive. Current practice for characterizing solid tumors involves the use of varying systems of tumor grading ...
Breathing dynamics in heteropolymer DNA
(CELL PRESS, 2007-04)
While the statistical mechanical description of DNA has a long tradition, renewed interest in DNA melting from a physics perspective is nourished by measurements of the fluctuation dynamics of local denaturation bubbles ...
Convergence theorems for intermediate problems. II
(Cambridge University Press, 2002)
Convergence theorems for the practical eigenvector free methods of Gay and Goerisch are obtained under a variety of hypotheses, so that our theorems apply to both traditional boundary-value problems and atomic problems. ...
Texture and structural refinement using neutron diffraction data from molybdite (MoO3) and calcite (CaCO3) powders and a Ni-rich Ni50.7Ti49.30 alloy
(Cambridge University Press, 2009-12)
Preferred orientation or texture is a common feature of experimental powder patterns. The mathematics of two commonly used models for preferred orientation-the March-Dollase and the generalized spherical-harmonic models-is ...
In situ structural and texture analyses of monoclinic phase for polycrystalline Ni-rich T49.86Ni50.14 alloy from neutron diffraction data
(Cambridge University Press, 2008-03)
Phase transformation temperatures of a polycrystalline Ni-rich Ti49.86Ni50.14 shape memory alloy were investigated using a differential scanning calorimeter. In situ structural and texture analyses of the monoclinic ...
Growth of functions in cercles de remplissage
(Cambridge University Press, 2002-02)
Suppose that f is meromorphic in the plane, and that there is a sequence z(n) --> infinity and a sequence of positive numbers epsilon(n) --> 0, such that epsilon(n)\z(n)f(#)(z(n))/log\z(n)\ --> infinity. It is shown that ...
Spatial variation in soil active-layer geochemistry across hydrologic margins in polar desert ecosystems
(Copernicus Publications, 2009)
Polar deserts are characterized by severe spatial-temporal limitations of liquid water. In soil active layers of the Antarctic Dry Valleys, liquid water is infrequently available over most of the arid terrestrial landscape. ...
A hybrid collocation method for volterra integral equations with weakly singular kernels
(Siam Publications, 2003)
The commonly used graded piecewise polynomial collocation method for weakly singular Volterra integral equations may cause serious round-off error problems due to its use of extremely nonuniform partitions and the sensitivity ...