The removal of nitrogen oxides emitted by diesel and lean burn engines is one of the most important targets in catalytic exhaust aftertreatment research. Besides the selective catalytic reduction (SCR) reaction with ammonia the most promising approach is the NOx Storage and Reduction Catalyst (NSR) which utilizes the nitrogen oxides storage on barium sites to form nitrates during the lean phase...

Catalytic steam reforming of glycerol for H(2) production has been evaluated experimentally in a continuous flow fixed-bed reactor. The experiments were carried out under atmospheric pressure within a temperature range of 400-700 degrees C. A commercial Ni-based catalyst and a dolomite sorbent were used for the steam reforming reactions and in situ CO(2) removal. The product gases were measured...

earth dam is a structure as homogeneous or non-homogeneous forms for raising water level or water supply. earth dam consist of different parts that one of the main parts is clay core. choosing an optimal non permeable core which causes reduction of seepage through dam body and also being stable is necessary. the objective of this research is to optimize the geometry of earth dam clay core such ...

We present a numerical case study for modeling and simulation of upstream downstream processes monoclonal antibody (mAb) production. apply systematic intuitive methodology an existing process process. The resulting models are based on differential mass balances kinetic expressions the reactions adsorption. Mass fedbatch reactor yield model consisting five ordinary equations (ODEs). is conducted...

Tree-based models provide an alternative to linear models for classification and regression data. They are used primarily for exploratory analysis of complex data or as a diagnostic tool following a linear model analysis. They are also used as the end product in certain applications, such as speech recognition, medical diagnoses, and other instances where repeated fast classifications are requi...

The problem of equilibrium and kinetics for adsorption] desorption of condensable ®apors in porous media is studied experimentally and theoretically. For adsorption, the ( network model for diffusion based on pore blocking theory with percolation in the ) network added by effecti®e medium approximation is further impro®ed. A new predicti®e model based on properties of the Bethe lattices is prop...