Pumice and the Moringa oleifera (MO) seed were investigated as alternative natural materials for drinking water treatment based on problems identified at the Stretta Vaudetto water treatment plant in Eritrea. Lab and pilot scale studies showed that pumice was a suitable alternative material for dual media filtration. Conversion of the sand filters at Stretta Vaudetto to pumice-sand media would ...

Collaboration among distributed workgroup members is hampered by the lack of good tools to support informal interactions. These tools either fail to provide teleawareness or enable smooth transitions into and out of informal interactions. Video media spaces—always-on video links—have been proposed as a solution to this problem. However, the “always-on” nature of video media spaces results in a ...

Collaboration among distributed workgroup members is hampered by the lack of good tools to support informal interactions. These tools either fail to provide teleawareness or enable smooth transitions into and out of informal interactions. Video media spaces—always-on video links—have been proposed as a solution to this problem. However, the “always-on” nature of video media spaces results in a ...

Cases of variant Creutzfeldt-Jakob disease in people who had consumed contaminated meat products from cattle with bovine spongiform encephalopathy emphasize the need for measures aimed at preventing the transmission of the pathogenic prion protein (PrPSc) from materials derived from cattle. Highly stringent scrutiny is required for fetal bovine serum (FBS), a growth-medium supplement used in th...

The article presents a three-dimensional mathematical model of the gas filtration process in porous media and numerical algorithm for solving initial-boundary value problem. developed is described using nonlinear differential equation partial derivatives with appropriate initial boundary conditions. proposed apparatus makes it possible to carry out hydrodynamic calculations taking into account ...

Introduction Dissolved gases,with dissolved oxygen serving as the primary marker,have been widely documented to influence dissolution experiments. The dissolved gases can cause changes in the performance of the dissolution medium by changing pH,forming bubbles on the dosage form or altering the interaction of the medium and the active pharmaceutical ingredient [1]. Extensive studies have been p...