For many quantum information implementations with trapped ions, effective shuttling operations are important. Here, we discuss the efficient separation and recombination of ions in surface ion trap geometries. The maximum speed of separation and recombination of trapped ions for adiabatic shuttling operations depends on the secular frequencies the trapped ion experiences in the process. Higher ...

In spite of interest in the dynamics of the billiards family of games for example, pool and snooker , experiments using present-day inexpensive and easily accessible cameras have not been reported. We use a single high-speed camera and image processing techniques to track the trajectory of snooker balls to 1 mm accuracy. Successive ball positions are used to measure the dynamical parameters inv...

Phase separation in polymer blends is an important process. However, the compositions of the coexisting phases can only be predicted by numerical methods. We provide simple analytical expressions which serve as good approximations for the compositions after phase separation of binary homopolymer blends. These approximations are obtained by a stationary dynamics approach: we calculate the compos...

The rapidly growing field of biotechnology has created a critical need for simple, fast andhigh-throughput processes for the separation and purification of biomolecules from biologicalmatrices. In recent years, several bioseparation techniques have been proposed as advancedalternatives to the classical separation methods. These modern processes emphasize ultrahighselective and sensitive analysi...

Numerical geodynamo simulations with parameters close to an Earth-like regime would be of great interest for understanding the dynamics Earth's liquid outer core and associated geomagnetic field. Such are far too computationally demanding owing large range in spatiotemporal scales. This paper explores application a multi-scale timestepping method asymptotic model generation magnetic field fluid...

Recently, pervaporation separation processes have gained much attention in the separation of azeotropic and close boiling point organic-organic mixtures due to its high separation efficiency, economy, safety, and energy saving potentials. In this work, the effects of experimental factors such as feed composition and operating temperature on the performance of a commercial poly vinyl alcohol mem...