Chemical-looping water splitting is a novel and promising technology for hydrogen production with CO2 separation. Its efficiency and performance depend critically on the reduction and oxidation (redox) properties of the oxygen carriers (OC). Ceria is recognized as one of the most promising OC candidates, because of its fast chemistry, high ionic diffusivity, and large oxygen storage capacity. T...

nowadays, we live in a world which quality, speed, accuracy and cost are the most important parameters in parts' design and manufacturing. due to the complexity of part manufacturing, traditional and nontraditional manufacturing techniques are used. aerodynamic tests usually requires one or several models for testing in wind tunnels and these models typically have particular complexities in whi...

The research is designed to improve measurement of fast fragmentation kinetics of surface activated ions, to improve our understanding of how ions fragment and how energy transfers in collisions of ions with surfaces. A new technique, silicon nano-particle assisted laser desorption/ionization (SPALDI), was developed recently and allowed investigation of the kinetics of surfaceinduced dissociati...

the aim of the present work was to assess the feasibility of accononmc8-2ep/nf as a bioadhesive material for developing controlled release gastroretentive microsponges of loratadine. modified emulsion-solvent diffusion method was employed for the preparation of microsponges (f1-f9) based on 32 factorial design. the amount of ethyl cellulose (ec) and polyvinyl alcohol (pva) were selected as inde...

Chromatographic data pertaining to the enantioseparation of L- and D-phenylalanine anilide (PA) on a polymeric stationary phase imprinted with L-PA were studied from the viewpoints of phase equilibrium, mass transfer kinetics, and the thermodynamic properties of this enantiomeric separation system. The concentration dependence of the lumped mass transfer rate coefficient (k(m,L)) previously pub...

The influence of bacterial surface lipopolysaccharides (LPS) on cell transport and adhesion has been examined by use of three mutants of Escherichia coli K12 with well-characterized LPS of different lengths and molecular composition. Two experimental techniques, a packed-bed column and a radial stagnation point flow system, were employed to investigate bacterial adhesion kinetics onto quartz su...

In this review, we emphasize three aspects of the regrowth of ion-implanted amorphous Si layers: (l) orientation dependence of the regrowth kinetics, (2) impurity effects on the regrowth kinetics, and (3) impurity distribution due to regrowth. To account for the orientation dependence there are at least three proposed models: (1) geometric model, (2) stress relaxant model, and (3) surface recon...