Qiu Z.Y. – TechConnect Briefs

External Field Induced Non-Uniform Growth of Micron Composite Materials in Insulating Liquid: Experimental and Simulating

Tada S., Shen Y., Qiu Z.Y., The City College of New York, US

Numerical simulation is performed of motion and cluster formation of particles in a flowing suspension of particles in corn oil through a 60x120x3.0mm chamber with a spatially periodical electrode array. The chamber is rotated to [...]

Micron Particles Segregation in Lower Electric Field Regions in Very Dilute Neutrally Buoyant Suspensions

Qiu Z.Y., Shen Y., Tada S., Jacqmin D., The City College of New York, US

We use a spatially periodical electrode array in a fluid chamber to generate a high gradient electric field. Neutrally buoyant poly alpha olefin particles in corn oil in the chamber are transported to the lower [...]

Particle Electrophoresis in Closed-both-end Capillary and Likely Charged Particle Aggregation Induced by AC Electric Field

Qiu Z.Y., Shen Y., City College of New York, US

Electroosmosis flow (EOF) is a critical issue in electrophoresis separation techniques. The magnitude of EOF problems and difficult level of its solution are demonstrated by 33 issued US Patents on different methods to suppress or [...]

Scaling Relation between Current through Suspensions of Carbon-doped TiO2 Nanoparticles in Silicone Oil and Reciprocal of Shear Rate under Combined Electric and Shear Fields

Qiu Z.Y., Shen Y., Zhou L.W., Zhu Y.H., City College of New York, US

We synthesize carbon-doped TiO2 nanoparticles by hydrolysis of Tetra-n-butyl titanate Ti(OBu)4 in alcoholic solution. Ddodecylamine (DDA) works as template during synthesis. We accurately control carbon contents in nanoparticles by DDA content and carbonization temperature to [...]