Now showing items 31-40 of 1505
Nonclassical crossovers in binary reactions in one-dimensional systems
(Elsevier, 1994-01)
We examine the crossover behavior for the A + A --> O and A + B --> O reactions, which are highly nonclassical for a random initial distribution of reactants. We find that both reactions quickly depart from the ...
Modelling of composition changes during F-region storms: a reassessment
(Elsevier, 1991)
A recalculation of the global changes of thermospheric gas composition, resulting from strong heat inputs in the auroral ovals, shows that (contrary to some previous suggestions) widespread increases of mean molecular mass ...
Use of linear feedback to control relaxation oscillations in a metal-passivation model
(IOP Publishing Ltd, 1996-11-01)
A method of linear feedback is shown to be applicable to the control or suppression of spontaneously occurring relaxation oscillations in a two-dimensional model for the passivation of a metal surface exposed to an aqueous ...
Singlet particle extension of the minimal Higgs sector
(Elsevier, 1993-06-07)
A scalar singlet particle, named U, is coupled to the Higgs sector of the standard model for the purpose of parametrizing the large Higgs mass behaviour of the theory. The radiative corrections to the low-energy parameters ...
Thermal destratification in a cylindrical packed bed
(Elsevier, 1992-03)
Thermal destratification was observed in a cylindrical packed bed 62 cm high and 37.5 cm in diameter filled with 12.6 mm diameter glass spheres and saturated with air. The boundaries were impermeable and covered with 10.2 ...
Including spin in the Raychaudhuri equation
(The American Institute of Physics, 1991-02)
The Raychaudhuri equation for a spin fluid matter content is developed. The equation is applied to the behavior of an irrotational, unaccelerated fluid. The development of singularities in the expansion is studied for ...
Improved 13C-Resolved HSQC-NOESY Spectra in H2O, Using Pulsed Field Gradients
(Elsevier, 1993-10)
A simple synthesis of [11C]methyl triflate
(Elsevier, 1992-11)
[11C]Methyl triflate ([11C]methyl trifluoromethanesulfonate) was formed in high yield when [11C]methyl iodide in a nitrogen carrier was passed at 200[deg]C through a column containing graphitized carbon impregnated with ...
Alternative equations of motion for the radiating electron
(Springer-Verlag, 1995-02)
We have previously written down a simple second-order equation for the radiating electron and pointed out that its solutions are well behaved. A key feature of this equation is the presence of a term involving the time ...
The formation of thick borders on an initially stationary fluid sheet
(The American Institute of Physics, 1999-09)
The formation of thick borders on an initially stationary two-dimensional fluid sheet surrounded by another fluid is examined by numerical simulations. The process is controlled by the density and the viscosity ratios, and ...