نتایج جستجو برای: chemical kinetics

تعداد نتایج: 465706  

Journal: :CoRR 2014
Azam S. Zavar Moosavi Adrian Sandu

This paper discusses new simulation algorithms for stochastic chemical kinetics that exploit the linearity of the chemical master equation and its matrix exponential exact solution. These algorithms make use of various approximations of the matrix exponential to evolve probability densities in time. A sampling of the approximate solutions of the chemical master equation is used to derive accele...

2009
Alessandra Basso Loris Sinigoi Lucia Gardossi Sabine Flitsch

Peptide bond synthesis was performed on PEGA beads under microwave radiations. Classical chemical coupling as well as thermolysin catalyzed synthesis was studied, and the effect of microwave radiations on reaction kinetics, beads' integrity, and enzyme activity was assessed. Results demonstrate that microwave radiations can be profitably exploited to improve reaction kinetics in solid phase pep...

2016
Bal'azs Boros Josef Hofbauer Stefan Muller

Chemical reaction networks with generalized mass-action kinetics lead to power-law dynamical systems. As a simple example, we consider the Lotka reactions with two chemical species and arbitrary power-law kinetics. We study existence, uniqueness, and stability of the positive equilibrium, in particular, we characterize its global asymptotic stability in terms of the kinetic orders.

The effect of chemical reactions on the blast initiation of detonation in gaseous media has been investigated in this paper. Analytical method is based on the numerical solution of onedimensional reactive Euler equations. So far, analyses on the blast initiation of detonation have modeled the combustion process as a one-step chemical reaction, which follows the Arrhenius rate law. Previous stud...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان 1386

چکیده ندارد.

Journal: :The Journal of General Physiology 2008
John F. Nagle John C. Mathai Mark L. Zeidel Stephanie Tristram-Nagle

Recently measured water permeability through bilayers of different lipids is most strongly correlated with the area per lipid A rather than with other structural quantities such as the thickness. This paper presents a simple three-layer theory that incorporates the area dependence in a physically realistic way and also includes the thickness as a secondary modulating parameter. The theory also ...

2001
D. RAMKRISHNA

AMIt is shown that two problems, one which has become a classic in chemical kinetics developed by Wei and Prater and the other a more prosaic development in multicomponent rectification, when cast in the proper mathematical framework become amenable to a more direct solution. This involves the. selection of the proper inner product on a tlnite dimensional vector space so that the linear operato...

Journal: :The Journal of chemical physics 2013
Rory M Donovan Andrew J Sedgewick James R Faeder Daniel M Zuckerman

We apply the "weighted ensemble" (WE) simulation strategy, previously employed in the context of molecular dynamics simulations, to a series of systems-biology models that range in complexity from a one-dimensional system to a system with 354 species and 3680 reactions. WE is relatively easy to implement, does not require extensive hand-tuning of parameters, does not depend on the details of th...

Journal: :ACS nano 2012
Feng Miao Wei Yi Ilan Goldfarb J Joshua Yang Min-Xian Zhang Matthew D Pickett John Paul Strachan Gilberto Medeiros-Ribeiro R Stanley Williams

TaO(x)-based memristors have recently demonstrated both subnanosecond resistance switching speeds and very high write/erase switching endurance. Here we show that the physical state variable that enables these properties is the oxygen concentration in a conduction channel, based on the measurement of the thermal coefficient of resistance of different TaO(x) memristor states and a set of referen...

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