Authors:Zoltán Kovács, Juraj Števek, Miroslav Fikar, and Peter Czermak
both STR and EMR, derive the kineticparameters on the basis of observed experimental data, and compare the catalytic performance of such systems in terms of substrate conversion and productivity. Kinetic modeling In this section we introduce a kinetic
Authors:Lech Nowicki, Anna Antecka, Tomasz Bedyk, Paweł Stolarek, and Stanisław Ledakowicz
equations and kineticparameters for different oxidizing agents (O 2 , H 2 O and CO 2 ) were obtained. Kinetic analysis is mainly used as a tool for extracting valuable information about the gasification step from a series of measurements with many data
Authors:A. Biedunkiewicz, U. Gabriel, P. Figiel, and D. Grzesiak
The analysis of purification and carbonization process in argon with use of nc-TiCx/C powder, obtained by sol–gel method, is presented. TG-DSC measurements were carried out under non-isothermal and isothermal
conditions. The samples were heated up in series to 1473, 1573, 1673, and 1773 K. For this series description of process kinetics
is presented. Four stages of the process have been distinguished. Kinetics was described using Coats-Redfern equation. The
kinetic parameters were determined for particular stages. Using obtained kinetic data, the analysis of the process was performed.
The α(T) and r(α,T) dependencies on heating rate and temperature were investigated. In order to obtain high carbonization degree and carbide
particles of small size, an appropriate temperature and time of process duration have to be determined. Appropriate carbonization
and particles size were obtained for series heated up to 1570 K. It has been demonstrated that the oxygen, present at trace
level in argon, can react with components of the system in certain range of temperature, influencing the quality of obtained
product. The particles have been depicted by TEM method, whereas characterization of structure and particles size was performed
by XRD method. MS method was used to determine evolved gaseous products.
and reaction rate of the second step:
The second assumption for model - based analysis : all kineticparameters like activation energy, pre-exponential factor, order of reaction, and reaction type are assumed constant during the
Authors:B. Hefczyc, T. Siudyga, J. Zawadiak, and A. Mianowski
decomposition of azo-peroxyesters proceeds in two stages reflected by the two peaks on the TG curves. Methods based on Arrhenius-type kinetic equations are usually used to fit thermogravimetric data and to determine kineticparameters [ 9 – 13 ]. These methods
Authors:Saneesh Kumar, Patrick J. Bouic, and Bernd Rosenkranz
as nevirapine metabolized by the CYPs, predominantly CYP3A4 and CYP2B6 [ 16 , 17 ]. Few in vitro studies have assessed K m and V max kineticparameters of rifampicin in human liver microsomes.
RIF-induced CYP3A4 activation and expression
one crucial kineticparameter (peak vertical instantaneous loading rate) was higher in shod dogs than in the barefoot controls.
The ubiquity of dogs as popular companions comes with serious animal welfare costs as it shows in the vast number of
Authors:D. Wyrzykowski, E. Hebanowska, G. Nowak-Wiczk, M. Makowski, and L. Chmurzyński
the case of complex processes, result in a description incompatible with reality; (ii) attempts to determine kineticparameters of a reaction, i.e. activation energy, E a , or exponent in the Arrhenius equation (the Friedman or Ozawa