Simultaneous reactions between solids and gases are very important in the chemical and metallurgical processes. In the modeling, the chemical reaction and diffusion of gases must be considered. Therefore, a set of coupled partial differential equations is found. When the kinetic is a function of solid concentration, there is not any analytical solution for these equations. Therefore, numerical ...

In recent years certain trends from User-Centered design have been seeping into the practice of designing computer games. The balance of power between game designers and players is being renegotiated in order to find a more active role for players and provide them with control in shaping the experiences that games are meant to evoke. A growing player agency can turn both into an increased sense...

base deficit is a non-respiratory indicator of acid base status. aim of this study is to assess relationship between the base deficit value in immediate post operative period of cabg and valvular heart disease with cardiopulmonary and in hospital outcome of patient. a total of 136 consecutive with cabg and valvular heart disease scheduled in study. 20 variables were determined during the pre-in...

the optimization model for evaluating regional and global effects of greenhouse gases reductionpolicies named merge is an actively usable tool for studying some aspects of the problem of climate change.it is first of all destined for the quantitative estimation of emission trajectories and results of applyingabatement measures. in the paper, the emphasis is on the adaptation of the integrated a...

the thermal diffusion factor, at, for a binary gas mixture is calculated on the basis of nonequilibrium thermodynamics. a new formula for at is derived and this factor is given for several paris of gases according to this formula.

This paper contributes to the literature on community response to the announcement of well-established chemical contamination close to their homes. It describes a study of residents' views of chemical contamination on a close and long-standing community in the context of impacts on everyday life. This followed the discovery early in 2000 that houses in Weston Village, in the County of Cheshire,...