this study aims to investigate and optimize the effects of the main parameters including the particle size, gravity and magnetic separation combination, high gradient magnetic separation, magnetic field intensity, shaking table slope, washing water flow, and electrostatic separation upon the rare earth element (ree) recoveries from iron mine waste. the electron microprobe showed that high amoun...

Viscoelastic flow-based particle manipulation techniques enable bio-particle focusing, separation, and enrichment by precisely tuning the rheological parameters, flow conditions, microchannel geometry. In this study, we fabricated a PDMS-based single inlet/outlet to separate bio-particles their size ranging from 1-10 μm. Flow conditions properties are optimized using 2 μm 4 Polystyrene beads re...

An arithmetic circuit or formula is multilinear if the polynomial computed at each of its wires is multilinear. We give an explicit polynomial f (x1, . . . ,xn) with coefficients in {0,1} such that over any field: 1. f can be computed by a polynomial-size multilinear circuit of depth O(log2 n). 2. Any multilinear formula for f is of size nΩ(logn). This gives a superpolynomial gap between multil...

We review recent developments in size separation in vibrated granular materials. Motivated by a need in industry to handle granular materials efficiently and a desire to make fundamental advances in non-equilibrium physics, experimental and theoretical investigations have shown size separation to be a complex phenomenon. Large particles in a vibrated granular system normally rise to the top. Ho...