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JS Wang

Publications and source records attributed to JS Wang.

At least 19 recordsLinked to original sources
PubMed2000

Unequal intralayer coupling in a bilayer driven lattice gas

The system under study is a twin-layered lattice gas at half filling, being driven to nonequilibrium steady states by a large, finite "electric" field. By making intralayer couplings unequal, we were able to extend the phase diagram obtained by Hill, Zia, and Schmittmann and found some interesting effects. Many transient phases to the strip phase were found to be long lived. We also attempted to test whether the driven lattice gas with negative interlayer coupling is still in the Ising universality class. Simulation results suggest a value of 1.75 for the exponent gamma but a value closer to 2.0 for the ratio gamma/nu. We suspect a different susceptibility has to be used due to the presence of two phases near criticality.

Journal Article↗
PubMed1999

Prediction of photosynthetic production rate of ethylene using a recombinant cyanobacterium

A model of substrate inhibition for enzyme kinetics is applied to photosynthetic production of ethylene by a recombinant cyanobacterium, which exhibits light inhibition behavior. Kinetic parameters of the model were evaluated from a linear plot of the data. Parameter values obtained in this way described well the light-intensity dependence of ethylene production rate. The inhibition model was then extended to predict the production rate at higher cell concentrations, taking account of the light absorption effect by the bacteria. An explicit expression for the production rate was derived and the predicted results agreed with experimental data. An expression is also derived for the optimum light intensity which will result in a maximum production rate. In addition, predicted features of light-intensity dependence of total production conformed to reported results of another photosynthetic product. The approach of the present work may be applicable to a number of other photosynthetic processes. Copyright 1999 Academic Press

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