Experimental analysis of the sedimentation velocity of Cryptosporidium parvum oocysts and Giardia lamblia cysts was compared with mathematical description of their sedimentation velocities by using measurements of (oo)cyst size and density and the density and viscosity of the sedimentation medium to determine if the sedimentation kinetics of freely suspended oocysts of C. parvum and cysts of G....

This paper considers a mixture of sedimenting particles at low Reynolds numbers and volume fractions. Simple theoretical arguments have long suggested that for a random suspension of particles in an infinite system, the fluctuations in the velocity about the mean should diverge with system size. On the other hand, experiments have shown no such divergence. The primary goal of this paper is to e...

In their article entitled: “The decrease in erythrocyte sedimentation rate related to general anesthesia”, Clin Hemorheol Microcirc 35 (2006) 459–462, Caglayan and co-workers have investigated the effects of general anesthetic agents on erythrocyte properties, reflected in changes in the Erythrocyte Sedimentation Rate (ESR). In their introduction the authors referred to the one-hour ESR method ...

The article presents measures to improve the quality of cementing production string high-performance wells. relevance proposed technological solutions is substantiated. results experimental studies installation simulating processes occurring during thickening cement slurry under action gravitational forces are presented. An algorithm for creating overpressure on wellhead fastening proposed. com...

An important problem in the study of microparticles in the marine environment, suspended in the water column or deposited as sediment on the ocean bottom, is the determination of provenance of the microparticles-where did they come from and by what processes were they transported to the sampling location? Two techniques of possible interest to those concerned with tracing the origins and disper...