Morphogenesis in precipitation processes

Warm Rain Precipitation Processes

Precipitation processes in the Middle East

A regional climate model, RegCM2, is used to investigate the relative importance of storm tracks and topography in generating precipitation in the Middle East. The model is run for five years (1990 thru 1994) at 25km horizontal resolution forced at the boundaries by the ECMWF-TOGA analysis. Six subregions that exhibit precipitation regimes disparate from one-another are identified and examined....

Cloud Systems and Precipitation Processes in Pacific Coast Storms

From the records obtained during the Weather Bureau Artificial Cloud Nucleation Project carried out in western Washington State during the winters of 1952-53 and 1953-54, i t is possible to study the nature of some of the precipitation processes evident in that locality, and to form a preliminary generalized picture of certain types of cloud systems involved. Evidence is presented of natural se...

Stoichiometric hydroxyapatite obtained by precipitation and sol gel processes

Se describen tres métodos para obtener hidroxiapatita (HA). La HA es una cerámica muy interesante por sus múltiples aplicaciones médicas. Los primeros dos métodos de precipitación parten de compuestos de calcio y fósforo, mientras que el tercer método es un proceso sol-gel que usa alcóxidos. Los productos fueron caracterizados y comparados entre sı́. Las diferencias observadas son importantes pa...

Some Basic Aspects of Reaction Engineering of Precipitation Processes

Analysis of precipitation reactions is extremely important in the technology of production of fine particles from the liquid phase. The control of composition and particle size in precipitation processes requires careful analysis of the several reactions that comprise the precipitation system. Since precipitation systems involve several, rapid ionic dissociation reactions among other slower one...