the physico-chemical characteristics and physiological qualities of palm (phoenix dactylifera) fruit strongly depend on the storage conditions. storage environment and packaging type are the factors most influencing on the quality of dates during their storage. date fruits were packed within an aerobic atmosphere, vacuumed in pa/pe pouches and stored at different temperatures (-20, 4, 25 and 40...

A lot of metallurgical processes take places in shaft furnaces, where reacting gas carrying powders flows up in packed bed of descending metallurgical materials. Gas + powder two phase flow in fixed packed bed has been investigated by author for many years 1 . At present author undertakes the investigations with moving bed. Physical model with glass bed and glass powders was constructed. The ex...

Pullulanase from Bacillus acidopullulyticus was purified on a packed bed and a fluidized bed of calcium alginate beads. The binding of enzyme activity to the medium was found to follow Langmuir isotherm pattern. The maximum binding capacity was 1476 U ml(-1) matrix and the dissociation constant was 142 U ml(-1). The dynamic binding capacities at 5% breakthrough in the packed and fluidized beds ...

The waste heat potential from industrial processes is tremendous and if it can be utilized may significantly contribute to the mitigation of climate change. A packed bed thermal energy storage system a low-cost technology that employed enable utilization processes. This used store excess release this when needed at later time. To ensure efficient operation storage, its characteristics in standb...