The most commonly used theoretical models for describing chemical kinetics are accurate in two limits. When relaxation is fast with respect to reaction time scales, thermal transition state theory (TST) is the theoretical tool of choice. In the limit of slow relaxation, an energy resolved description like RRKM theory is more appropriate. For intermediate relaxation regimes, where much of the ch...

Recently the work by Horn, Jackson, and Feinberg 1 5 has led to a reformulation of polynomial kinetics under the name of general mass-action kinetics. An essential step in this direction was an ingenious new notation which allowed to write down all differential equations in a certain matrix form, called the Horn-equation (by Müller-Herold6). The equation allows to discuss all chemical reaction ...

In this article I intend to give an explanation of the ionic theory of function of nerve centers in connection with propagation of nerve stimulation. The experiments of many authors and our observations ~ show that during continuous action of nerve centers there takes place a periodic process of stimulation which results in a periodic electromotive force. The periods of different centers are no...

Advances in the fields of catalysis and electrochemical energy conversion often involve nanoparticles, which can have kinetics surprisingly different from the bulk material. Classical theories of chemical kinetics assume independent reactions in dilute solutions, whose rates are determined by mean concentrations. In condensed matter, strong interactions alter chemical activities and create vari...

We address via numerical simulation the two-dimensional bimolecular annihilation reaction A+A → ∅ in the presence of quenched, random impurities. Renormalization group calculations have suggested that this reaction displays anomalous kinetics at long times, cA(t) ∼ atδ−1, for certain types of topological or charged reactants and impurities. Both the exponent and the prefactor depend on the stre...

We address via numerical simulation the two-dimensional bimolecular annihilation reaction A+A → ∅ in the presence of quenched, random impurities. Renormalization group calculations have suggested that this reaction displays anomalous kinetics at long times, cA(t) ∼ atδ−1, for certain types of topological or charged species and impurities. Both the exponent and the prefactor depend on the streng...

We address via numerical simulation the two-dimensional bimolecular annihilation reaction A+A → ∅ in the presence of quenched, random impurities. Renormalization group calculations have suggested that this reaction displays anomalous kinetics at long times, cA(t) ∼ atδ−1, for certain types of topological or charged species and impurities. Both the exponent and the prefactor depend on the streng...

We address via numerical simulation the two-dimensional bimolecular annihilation reaction A+A → ∅ in the presence of quenched, random impurities. Renormalization group calculations have suggested that this reaction displays anomalous kinetics at long times, cA(t) ∼ atδ−1, for certain types of topological or charged reactants and impurities. Both the exponent and the prefactor depend on the stre...

photoreactor using solar radiation. The effect of various parameters such as pH, initial concentration of pollutant, catalyst dose, oxidant, and time variation were studied. The determination of the best catalyst was studied amongst the four catalysts (TiO2, ZnO, PSA and SSA) .The kinetics of degradation of isooctane was also studied. The results showed that TiO2 was the best catalyst with a de...

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