Results 21 to 30 of about 400,303 (304)

Kinetic determination of lysine in pharmaceutical sample [PDF]

open access: yesJournal of the Serbian Chemical Society, 2002
Akinetic method for the determination of micro quantities of the amino acid lysine (Lys) is described in this paper. The catalytic activity of cobalt in the reaction of the oxidation of purpurin (1,2,4-trihydroxyanthraquinone PP) by hydrogen peroxide in ...
Mitić Snežana S.   +3 more
doaj   +1 more source

Numerical methods for kinetic equations [PDF]

open access: yesActa Numerica, 2014
In this survey we consider the development and mathematical analysis of numerical methods for kinetic partial differential equations. Kinetic equations represent a way of describing the time evolution of a system consisting of a large number of particles.
DIMARCO, Giacomo, PARESCHI, Lorenzo
openaire   +3 more sources

Enzymatic kinetic method for determination of propranolol hydrochloride in pharmaceuticals based on its inhibitory effect on cholinesterase [PDF]

open access: yesHemijska Industrija, 2012
Propranolol, a widely used beta-blocker, inhibits the reaction of enzyme cholinesterase hydrolysis. Measurements of the hydrolysis rate differences between and inhibited reactions, allows the development of a kinetic method for its determination. Both
Mandić Ljuba M.   +4 more
doaj   +1 more source

Development and Comparison of Thermodynamic Equilibrium and Kinetic Approaches for Biomass Pyrolysis Modeling

open access: yesEnergies, 2022
Biomass pyrolysis is considered as a thermochemical conversion system that is performed under oxygen-depleted conditions. A large body of literature exists in which thermodynamic equilibrium (TE) and kinetic approaches have been applied to predict ...
Sahar Safarian   +2 more
doaj   +1 more source

Conservative numerical methods for model kinetic equations [PDF]

open access: yes, 2007
A new conservative discrete ordinate method for nonlinear model kinetic equations is proposed. The conservation property with respect to the collision integral is achieved by satisfying at the discrete level approximation conditions used in deriving the ...
Titarev, Vladimir A.
core   +1 more source

The Activation-Relaxation Technique : ART nouveau and kinetic ART [PDF]

open access: yes, 2012
The evolution of many systems is dominated by rare activated events that occur on timescale ranging from nanoseconds to the hour or more. For such systems, simulations must leave aside the full thermal description to focus specifically on mechanisms that
Brommer, Peter   +8 more
core   +1 more source

Direct numerical simulation of complex viscoelastic flows via fast lattice-Boltzmann solution of the Fokker–Planck equation [PDF]

open access: yes, 2013
Micro–macro simulations of polymeric solutions rely on the coupling between macroscopic conservation equations for the fluid flow and stochastic differential equations for kinetic viscoelastic models at the microscopic scale.
Izquierdo, S.   +6 more
core   +1 more source

A kinetic method for the determination of phenol [PDF]

open access: yesJournal of the Serbian Chemical Society, 2002
Akinetic method for the determination of phenol is proposed. The method is based on the inhibiting effect of phenol on the Mn(II) catalysis of the oxidation of malachite green with potassium periodate.
Mitić Snežana S.   +1 more
doaj   +3 more sources

Link-wise Artificial Compressibility Method [PDF]

open access: yes, 2012
The Artificial Compressibility Method (ACM) for the incompressible Navier-Stokes equations is (link-wise) reformulated (referred to as LW-ACM) by a finite set of discrete directions (links) on a regular Cartesian mesh, in analogy with the Lattice ...
Ohwada, T.   +4 more
core   +1 more source

A kinetic-based stopped-flow DPPH• method

open access: yesScientific Reports, 2023
The reaction kinetics of antioxidants with free radicals is crucial to screen their functionality. However, studying antioxidant-radical interactions is very challenging for fast electron-donor substances, such as ascorbic acid, because the reaction ends
Lucrezia Angeli   +2 more
doaj   +1 more source

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