This study aimed to quantify the effect of membrane surface porosity on particulate fouling predicted by MFI-UF method at constant flux. Firstly, polyethersulfone UF membranes (5–100 kDa) was determined using ultra-high resolution SEM. Thereafter, measured suspensions polystyrene particles (75 nm), which were pre-washed remove surfactant and particle fractions smaller than pores membranes, thus...

The classical Poisson functor associates to every infinite measure preserving dynamical system (X, μ, T) a probability (X*, μ*, T*) called the suspension of T. In this paper we generalize construction: subgroup Aut2(X, μ) μ-nonsingular transformations T X is specified as largest for which T* μ*-nonsingular. topological structure studied. We show that generic element in ergodic and Krieger type ...

Modeling and direct numerical simulation of particle-laden flows have a tremendous variety applications in science engineering across vast spectrum scales from pollution dispersion the atmosphere, to fluidization combustion process, aerosol deposition spray medication, along with many others. Due their strongly nonlinear multiscale nature, above complex phenomena still raise very steep challeng...

A method is described for estimating the cell concentration of bacterial suspensions by measurement of the column lengths of packed cells centrifuged into a capillary tube of fine bore. The total error, under the experimental conditions employed, checked by direct count, was >2 per cent for dense suspensions and about 5 per cent for light suspensions. The method is suitable for work requiring r...

This paper takes as its catalyst a series of live art events that took place between London and Manchester in 2019. Thinking conversation with Erin Manning’s propositions for “minor movements” the Duchampian “infrathin”, we explore potential to temporarily suspend thresholds perceptibility permissibility public realm. We argue artful techniques improvisation carry capitalistic orderings time by...

We introduce the (2+1)-spacetimes with compact space of genus g ≥ 0 and r gravitating particles which arise by Minkowskian suspensions of flat or hyperbolic cone surfaces, by distinguished deformations of hyperbolic suspensions and by patchworking of suspensions. Similarly to the matter-free case, these spacetimes have nice properties with respect to the canonical Cosmological Time Function. Wh...

Rheological behavior of aqueous suspensions containing nanometer-sized powders is of relevance to many branches of industry. Unusually high viscosities observed for suspensions of nanoparticles compared to those of micron size powders cannot be explained by current viscosity models. Formation of so-called hydration layer on alumina nanoparticles in water was hypothesized, but never observed exp...