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 estuarine wetland buffer zone of the Fuhe river plays an important role in terms improving water quality Baiyangdian lake. In this study, purification effect and microbial community composition during a low-temperature period were investigated (March, 2021). results indicated that pre-sedimentation ecological pond (Pep), subsurface flow (Sfw), aquatic plant (App) exhibited good removal effe...

The strengthening of a coastal zone considers complex hydrodynamic factors (waves, currents, wind and materials carried by them), climate, rock stability, sedimentation eustatic fluctuations at sea level. terrace on which the urban structures Nessebar are located is formed almost horizontal Miocene limestone sandstones, marl lime stones clays. It limited steeply abraded coast, subjected to dest...

Abstract This paper documents the structure of flow and bed morphology a cutoff meander Danube River in relationship with GIS approach. The cutoffs effect produce changes repartition water sediment fluxes between natural channel manmade canal, direct implications on environmental evolution delta. Dranov de Jos (Lower ‒ LDM) belt seems to be one most affected by rectification works performed Sfâ...

In cell-free extracts from low-aeration suspensions of Rhodospirillum rubrum strain G-9, bacteriochlorophyll a was distributed in two bands after rate-zone sedimentation in sucrose density gradients. From the physicochemical properties of these fractions, it was concluded that the upper band consisted of small membrane fragments, whereas the major band was composed of fragmented vesicular intra...