We present results from experiments and simulation developing a better understanding of systems of particles whose dynamics are coupled to each other through external fields (e.g. electric, hydrodynamic) and/or intrinsic properties (e.g. permanent charge). Focusing on a few real world examples, we show that particle-particle interactions lead to emergent behavior that is not seen in single-part...

From observations of direct numerical simulations (DNS) of twodimensional turbulence with inverse energy cascade, two physical pictures of particle pair diffusion are proposed based on persistent streamline topology associated with stagnation points. One picture describes the step-by-step separation process of individual pairs in a local frame moving with them, whereas the other serves as a sta...

Chemical-mechanical separation of pig slurry into a solid fraction rich in dry matter, P, Cu and Zn and a liquid fraction rich in inorganic N but poor in dry matter may allow farmers to manage surplus slurry by exporting the solid fraction to regions with no nutrient surplus. Pig slurry can be applied to arable land only in certain periods during the year, so it is commonly stored prior to fiel...

The floating gas-solid fluidized bed (FGSFB) is a large-particle fluidized bed confined in a tapered column with inserted grids. By application of two types of particles in an FGSFB, a wide variety of operations can be carried out. The visual appearance and the hydrodynamic behaviour of such binary FGSFBs is reported in this paper. Two extreme types of behaviour were observed in the experimenta...

Acoustic standing wave technology combined with microtechnology opens up new areas for the development of advanced particle and cell separating microfluidic systems. This tutorial review outlines the fundamental work performed on continuous flow acoustic standing wave separation of particles in macro scale systems. The transition to the microchip format is further surveyed, where both fabricati...

The internuclear potential V(r) of a diatomic molecule is spherically symmetric. It depends only on r, the internuclear separation. The internuclear potential v(r) can be determined using the Born-Oppenheimer approximation, where we assume that the motion of the nuclei is very slow compared to that of the electrons. We solve for the energy of ground electronic state as a function of the internu...

We predict quantum correlations between noninteracting particles evolving simultaneously in a disordered medium. While the particle density follows the single-particle dynamics and exhibits Anderson localization, the two-particle correlation develops unique features that depend on the quantum statistics of the particles and their initial separation. On short time scales, the localization of one...

We study how retardation leads to interference effects in radiatively coupled plasmonic nanoparticles. We show that inclined illumination through a glass substrate on two plasmonic particles results in either an enhanced field or an attenuated field localized at the position of the first particle. Periodic intensity blinking of the first particle is observed as a function of the particle separa...

MATERIALS & METHODS 1975). Exploratory tests with TCP in other USDA cerealbased food blends revealed other problems, such as separation in products with larger particle sizes. The objectives of this research were to investigate addition of TCP in combination with soybean oil to other fortified processed cereal products, and to assess the effects on dusting, separation, insect suppression, and p...

The Alpha Magnetic Spectrometer (AMS), to be installed on the International Space Station (ISS) in 2008, is a cosmic ray detector with several subsystems, one of which is a proximity focusing Ring Imaging Čerenkov (RICH) detector. This detector will be equipped with a dual radiator (aerogel+NaF), a lateral conical mirror and a detection plane made of 680 photomultipliers and light guides, enabl...