Search Results - "Markworth, A.J."

A generalized description of the simultaneous processes of scale growth by high-temperature oxidation and removal by erosive impact by Wright, I.G., Sethi, V.K., Markworth, A.J.

“…An approach is proposed for describing the rate of loss from a metal surface subjected to the simultaneous action of high-temperature oxidation and mechanical…”
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The Portevin-Le Ch telier Effect: A Description Based on Time Delay by Gupta, A., Markworth, A.J.

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The Portevin-Le Châtelier Effect: A Description Based on Time Delay by Gupta, A., Markworth, A.J.

“…A mathematical description of the Portevin‐Le Ch�telier (PLC) effect is presented in the form of delay differential equations. Inclusion of a delay time in the…”
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Characterization and control of chaotic stress oscillations in a model for the Portevin-Le Châtelier effect by Markworth, Alan J., Gupta, Arnab, Rollins, Roger W.

“…A four-dimensional model of the PLC effect was used to demonstrate that the spontaneously occurring oscillations of the state variables, that are exhibited…”
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Application of chaos theory to the study of solid state systems having poor processing-related reproducibility by Vertegel, A.A, Tomashevich, K.V, Tretyakov, Yu.D, Markworth, A.J

“…A new approach to obtaining information about a chaotic system is considered. The essence of the method lies in analysis of the statistics of repetitive…”
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Possibility of critical field enhancement due to field penetration in high-T/sub c/ sponges and thin films by Collings, E.W., Markworth, A.J., Marken, K.R.

“…Magnetic susceptibility measurements of a sample of sintered high-T/sub c/ ceramic superconductor of nominal composition Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-y/…”
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Use of neural networks to predict the short-term behavior of chaotic time series, including effects of superimposed noise by Brawley, G.H., Markworth, A.J., Parmananda, P.

“…The predictive capabilities of some simple backpropagation neural networks, as applied to chaotic time series, are investigated using time-series data…”
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Cooling and solidification of liquid-metal drops in a gaseous atmosphere by Mccoy, J. K., Markworth, A. J., Collings, E. W., Brodkey, R. S.

“…The free fall of a liquid-metal drop, heat transfer from the drop to its environment, and solidification of the drop are described for both gaseous and vacuum…”
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Growth of inert-gas bubbles in solids; behaviour of non-uniform size distributions by Markworth, Alan J.

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Eddy-current effects in twisted and wound SSC strands by Marken, K.R., Markworth, A.J., Sumption, M.D., Collings, E.W., Scanlan, R.M.

“…An analysis has been made of the effective pitch (with respect to an applied field transverse to the winding axis) of a pair of filaments that have been first…”
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An approach to modeling simultaneous high-temperature oxidation and erosion by MARKWORTH, A. J, NAGARAJAN, V, WRIGHT, I. G

“…An approach is suggested for describing the rate of degradation of alloys subjected to the combined effects of high-temperature oxidation and erosion. The…”
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Hydrogen Gas Evolution from Cathodically Protected Pipeline Steel Surfaces Exposed to Chloride-Sulfate Solutions by Parkins, R. N., Markworth, A. J., Holbrook, J. H.

“…An experimental study of the conditions for hydrogen discharge and the associated pH changes in chloride-sulfate solutions was conducted for different pipeline…”
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Compacted 1-2-3 ceramic powders treated as superconducting composites by Collings, E.W., Markworth, A.J., Marken, K.R.

“…Magnetization studies of closely spaced fine-filamentary Cu/NbTi composites have shown that, at very low applied field strengths, proximity-effect coupling…”
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An atomistic model of crack extension by kink propagation by MARKWORTH, A.J, HIRTH, J.P

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Use of linear feedback to control chaos in a metal-passivation model by Markworth, A.J., Bloch, A.M.

“…Classic linear control theory is applied to a three-dimensional, highly nonlinear model for the passivation dynamics of a metal surface exposed to an aqueous…”
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Hydrogen Gas Evolution from Cathodically Protected Surfaces by Parkins, R. N., Markworth, A. J., Holbrook, J. H., Fessler, R. R.

“…[Repeated from Corrosion Abstracts, Vol.24, No. 2,…”
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