The article provides an overview of the results research purification processes gas and solution media from organic (tetrachloromethane, 1,4-dichlorobenzene 2,4-di-chlorophenol, etc.) inorganic (Cr(VI), Mn(VII), Cu2+, Fe2+3+, Zn2+, Cd2+, Ni2+, substances, as well synthesis oxide materials based on above metals under action a dielectric barrier discharge (DBD) atmospheric pressure DC discharge. ...

A large fraction of studies on GAs emphasize finding a globally optimal solution. Some other investigations have also been made for detecting multiple solutions. If a global optimal solution is very sensitive to noise or perturbations in the environment then there may be cases where it is not good to use this solution. In this paper, we propose a new scheme which extends the application of GAs ...

INTRODUCTION High concentrations of CO2 in natural gas affect its calorific value and corrode the equipment and pipelines related to its transportation and usage. Therefore, strict control over the H2S and CO2 contents in natural gas is essential. CO2 is an important industrial gas that can bring a great deal of economic profit when it is fully utilized. CASE DESCRIPTION The natural gas produ...

This paper is a density functional theory (DFT) calculation of intramolecular proton transfer (IPT) in 6-hydroxypicolinic acid (6HPA, 6-hydroxypyridine-2-carboxylic acid) tautomeric forms. The transition state for the enol-to-keto transition is reported in the gas phase and in four different solvents. The planar and non-planar dimer forms of 6HPA keto and enol, respectively, were also studied i...

PURPOSE To present a physical model for intraocular absorption of an inert gas used as a tamponade. METHODS The absorption kinetics of gas in contact with the retinal surface is examined, including the changing geometry of the shrinking gas bubble inside the eye. RESULTS An analytic solution is derived that predicts how the bubble dimensions change with time, yielding a formula for the life...

Introduce electronic control exhaust gas recirculation EGR system in the passenger cars and light duty vehicles was made because of fuel direct injectionengines. In this engines temperature combustion process is a higher then other type engine and in this connections NO, emissions were higher to. Simultaneously was appearing problems to electronic exhaust gas recirculation control in connection...

comIn the present study, CO2 removal from natural gas stream has been studied using a flat sheet membrane contactor. A three dimensional mathematical model is developed to describe the process. The model considers the transport of a gas mixture containing carbon dioxide and methane through a flat sheet membrane contactor module. The model is based on the non-wetted mode of operation, in which t...

Thermodynamic equations are de®eloped for adsorption of multicomponent gas mixtures in microporous adsorbents based on the principles of solution thermodynamics. The con®entional spreading pressure and surface area ®ariables, which describe 2-D films, must be abandoned for adsorption in micropores, in which spreading pressure cannot be measured experimentally or calculated from intermolecular f...

The use of genetic algorithms (GAs) to solve combinatorial optimization problems often produces a population of infeasible solutions because of optimization problem constraints. A solution pool with a large number of infeasible solutions results in poor search performance of a GA, or worse, the algorithm ceases to run. In such cases, the methods of penalty function and multi-objective optimizat...