Results 241 to 250 of about 1,100,093 (284)

Derivation of Pseudo-First-Order, Pseudo-Second-Order and Modified Pseudo-First-Order rate equations from Langmuir and Freundlich isotherms for adsorption

Chemical Engineering Journal, 2020
Abstract The kinetics of adsorption for Langmuir and Freundlich isotherms has been explored theoretically on the basis of Statistical Rate Theory (SRT). The Modified Pseudo-First-Order (MPFO) and Pseudo-First-Order (PFO) models were derived from Freundlich isotherm on the basis of Statistical Rate Theory at c 0 ≫ c e and at close to ...
Rohollah Ezzati
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What’s wrong with Lagergreen pseudo first order model for adsorption kinetics?

Chemical Engineering Journal, 2016
Abstract Adsorption processes can be modeled on the basis of phenomenological principles using conservation, equilibrium and transport kinetics equations. However many times an empirical approach is followed using pseudo first order and pseudo second order models to describe adsorption kinetics.
Rodrigues, Alirio E., Silva, Carlos Manuel   +1 more
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Thermoluminescence with pseudo first-order kinetics

Journal of Physics D: Applied Physics, 1982
In the context of thermoluminescence emission, first-order kinetics is defined formally as the case where every electron, having escaped from a trap, recombines with a trapped hole without first being re-trapped. Rather surprisingly, most studies of the kinetic order of thermoluminescence report first order. Two previously recognised conditions leading
J Hagekyriakou, R J Fleming
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Pseudo - first - order phase transitions in one dimension

Physical Review A, 1974
The effect of fluctuations on a Landau-Ginzburg model of a first-order phase transition in one dimension is studied. Extremely sharp pseudotransitions can be obtained. The critical region or width of the transition is found to vanish exponentially with the effective number of interacting units across a cross section of the system.
Y. Imry, D. J. Scalapino
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First-order and pseudo-first-order elimination kinetics

Science of The Total Environment, 1991
There is evidence that, for a number of chemicals, the elimination characteristics during bioconcentration do not follow monophasic first-order kinetics. In the first part of the present communication, a simple mathematical formula is presented that allows a clear-cut distinction between monophasic (pseudo-) and first-order and morephasic or higher ...
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Pseudo first-order kinetics

Journal of Chemical Education, 1972
A kinetic study of second-order reactions under first-order conditions can yield accurate second-order rate constants provided an empirical allowance is made for the depletion of the reactant in ex...
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Exact Asymptotic Relaxation of Pseudo-First-Order Reversible Reactions

Physical Review Letters, 1997
The relaxation kinetics of the diffusion-influenced reversible reaction $A+B\ensuremath{\rightleftharpoons}C$ is studied in the pseudo-first-order limit $([B]\ensuremath{\gg}[A])$ when A and C are static and the B's move independently with diffusion coefficient D. For the initial condition $[A(0)]\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1$, $[
Wolfgang Naumann, Nikolai V. Shokhirev, Attila Szabo   +2 more
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Determination of Eukaryotic Peptidyltransferase Activity by Pseudo-First-Order Kinetic Analysis

Analytical Biochemistry, 1997
We have developed an in vitro system for the determination of peptidyltransferase activity in rabbit reticulocyte ribosomes. Using this system, a detailed kinetic analysis of a model reaction for peptidyltransferase is described, with AcPhe-tRNA as the peptidyl donor and puromycin as the acceptor.
M, Ioannou, C, Coutsogeorgopoulos, D, Drainas   +2 more
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Solving First Order Formulae of Pseudo-Regular Theory

2005
In this paper, we study the class of pseudo-regular relations which is an extension of regular relations that weakens some restrictions on the ”synchronization” between tuple components of the relation. We choose logic programming as formalism to describe tree tuple languages (i.e.
Sébastien Limet, Pierre Pillot
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The pseudo-first-order Stark effect and the orientation of HXeI molecules

Journal of Modern Optics, 2003
We show that the gas-phase HXeI molecules can be strongly oriented via a pseudo-first-order Stark effect. This occurs owing to combined electrostatic and non-resonant laser fields acting synergically on the induced and permanent dipole moments of the molecule.
Friedrich, B., Nahler, N., Buck, U.
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