Now showing items 31-40 of 75
Effect of micronization on the extent of drug absorption from suspensions in humans
(Springer, 1995)
A microscopic mass balance approach has shown that the initial saturation (Is), absorption
number (An), dose number (Do), and dissolution number (Dn) are four fundamental dimensionless parameters that can be used to ...
Simulation of fluidized beds and other fluid-particle systems using statistical mechanics
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1996-03)
The expansion behavior and structural phenomena of fluid-particle systems was simulated using a method analogous to the Monte Carlo method for molecular systems. Individual particles are moved, and the resulting moves are ...
Fundamental study of the dissolution of calcium phosphonates from porous media
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1996-10)
Phosphonate-scale inhibitors are commonly used to prevent scale formation in many industrial processes involving high-salinity brine solutions. To effectively prevent scale formation in these industrial processes, one must ...
Reactions of polycyclic alkylaromatics: 5. pyrolysis of methylanthracenes
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1993-08)
1-, 2- and 9-methylanthracene were pyrolyzed neat at temperatures between 350 and 450°C for batch holding times up to 300 min. The pyrolysis proceeded through three parallel primary reaction pathways: one led to anthracene ...
Unified network model for adsorption–desorption in systems with hysteresis
(Wiley Subscription Services, Inc., A Wiley Company, 1999-04)
The problem of equilibrium and kinetics for adsorption–desorption of condensable vapors in porous media is studied experimentally and theoretically. For adsorption, the network model for diffusion based on pore blocking ...
Thermocapillary pumping of discrete drops in microfabricated analysis devices
(Wiley Subscription Services, Inc., A Wiley Company, 1999-02)
A nonmechanical pumping mechanism, thermocapillary pumping (TCP), is described for moving nanoliter- and picoliter-sized drops of liquid within microfabricated flow channels. In TCP, one end of a single drop is heated to ...
Role of water in formic acid decomposition
(Wiley Subscription Services, Inc., A Wiley Company, 1998-02)
Formic acid decomposes primarily to CO and H 2 O in the gas phase, but to CO 2 and H 2 in the aqueous phase. Ab-initio quantum chemical calculations were performed, using Hartree-Fock and density functional methods, to ...
Reaction kinetics of photoactive defects in semiconductor dissolution
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1996-08)
Uniformity and predictability are the principal qualities sought for all wet chemical etches. The establishment of these qualities, however, is hindered by a number of factors, such as nonuniformities in the starting ...
Charge-coupled device imaging of rapid calcium transients in cultured arterial smooth muscle cells
(Elsevier, 1990)
Transient changes in the concentration of intracellular free calcium are associated with the transduction of primary signals and the subsequent employment of Ca2+ as a second messenger in a multitude of cell types. These ...
2-Chlorophenol oxidation in supercritical water: Global kinetics and reaction products
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1993-01)
2-Chlorophenol (2CP) was oxidized in near-critical and supercritical water in a high-pressure plug-flow reactor. The global kinetics for 2CP disappearance were described by a rate law that was 0.88±0.06 order in 2CP, ...