abstract in this work, the dry reforming of methane was studied using a corona and glow discharge plasma microreactors. a chemical kinetic model was developed to understand the reaction better. the modelization allowed prediction of the reactants conversion according to the energy transfer to the gas (p×τ). the β value is trait of the energy cost, whatever this value was leeser indicated better...

In this paper we discuss a new concept of a constitutive kinetic equation which represents a quasicontinuum analog of the conventional continuum mechanical concept of a kinetic relation. Kinetic relations link the velocity of the defect with the driving force and are widely used to model dynamical response of dislocations, cracks and phase boundaries. To illustrate the difference between kineti...

We prove Strichartz estimates for the kinetic transport equation employing the techniques of Keel and Tao [11] and Foschi [8]. Our results extend considerably the range of the known Strichartz estimates in the literature for that equation. We show sharpness to most of the estimates that we prove. In particular, in one spatial dimension we find the full range of validity of the Strichartz estima...

We introduce three new examples of kinetic models for chemotaxis, where a kinetic equation for the phase-space density is coupled to a parabolic or elliptic equation for the chemo-attractant, in two or three dimensions. We prove that these models have global-in-time existence and rigorously converge, in the drift-diffusion limit to the Keller–Segel model. Furthermore, the cell density is unifor...

hydrothermal synthesis of nickel-chitosan hybrid  has  been accomplished using ni(ch3coo)2,4h2o, chitosan and water as starting material, template and solvent respectively, followed by calcination at 800 and 900˚c to provide nanoporous nio800  and nio900. the solid products were characterized by x-ray diffraction (xrd), nitrogen adsorption-desorption, scanning electron microscopy (sem) and four...

Mathematical models based on kinetic equations are ubiquitous in the modeling of granular media, population dynamics of biological colonies, chemical reactions and many other scientific problems. These individual-based models are computationally very expensive because the evolution takes place in the phase space. Hybrid simulations can bring down this computational cost by replacing locally in ...

Purpose – The purpose of this paper is to propose a conceptual structural equation model to investigate the relationships among self-directed learning (SDL), organizational learning (OL), knowledge management capability (KMC) and organizational performance (OP) and to demonstrate the direct and indirect effect of SDL on OP from the perspectives of KMC and OL. Design/methodology/approach – An em...

We have studied the Brillouin spectrum of light scattered by the dilute monatomic one component gases xenon and helium and by the xenon-helium binary gas mixture. In a one component monatomic gas the scattered light spectrum for a scattering process with momentum transfer, K, and energy transfer, w, is proportional to the power spectrum, S(K, W), of fluctuations in the density of the gas. In a ...

In this paper a generalized kinetic model for the analysis of population dynamics is given. Starting from the classical kinetic model, we propose an integro-differential equation as suitable generalization of known models, aiming to include, as special cases, the most popular models for population dynamics such as the kinetic model for cells competition [2, 4, 5, 6, 7, 9], the master equations ...