in the present study, the onset of double diffusive reaction-convection in a uid layer with viscous fluid, heated and salted from below subject to chemical equilibrium on the boundaries, has been investigated. linear and nonlinear stability analysis have been performed. for linear analysis normal mode technique is used and for nonlinear analysis minimal representation of truncated fourier serie...

Singular limit problems of reaction-diffusion systems have been studied in cases where the effects reaction terms are very large compared with those other terms. Such appear literature various fields such as chemistry, ecology, biology, geology and approximation theory. In this paper, we deal singular a general system including many literature. We formulate problem,...

Diffusion-controlled bimolecular reactions arise in various branches of natural sciences [1], chemically reacting systems [2], and contaminant transport [3]. Based on the kinetics of the chemical reaction, they are broadly classifi ed in to three categories: fast, moderate, and slow [4]. Herein, we are interested in the dynamics of a (fast/ moderate/slow) bimolecular reaction given by the follo...

We analyse the fast reaction limit in reaction-diffusion system with nonmonotone function and one nondiffusing component. As speed of tends to infinity, concentration component exhibits oscillations. identify precisely its Young measure which, as a by-product, proves strong convergence diffusing component, result that is not obvious from priori estimates. Our work based on an analysis regulariz...

the aim of this research is preparation of sno2 nanowires by means of thermal chemical reaction vapor transport deposition (tcrvtd) method from sno powders. the morphology, chemical composition and microstructure properties of the nanowires are characterized using field emission scanning electron microscope (fe-sem), eds, and xrd. the xrd diffraction patterns reveal that the sno2 nanowires have...

Bingo is a data cartridge for Oracle database that provides the industry’s next-generation, fast, scalable, and efficient storage and searching solution for chemical information. Bingo seamlessly integrates the chemistry into Oracle databases. Its extensible indexing is designed to enable scientists to store, index, and search chemical moieties alongside numbers and text within one underlying r...

Modern total protein synthesis has evolved from the ‘chemical ligation’ methods introduced by the Kent laboratory [Kent SBH. Total chemical synthesis of proteins. Chemical Society Reviews 2009; 38: 338-51.]. Unprotected synthetic peptide segments, spanning the amino acid sequence of the mature polypeptide chain derived from a predicted open reading frame, are covalently joined to one another by...

Fast self sustained waves of chemical or phase transformations, observed in several contexts in condensed matter effectively result in “gasless detonation”. The phenomenon is modelled by coupling the reaction diffusion equation, describing chemical or phase transformations, and the wave equation, describing elastic perturbations. The coupling considered in this work involves (i) a dependence of...