We study two widely used algorithms for the Potts model on rectangular subsets of the hypercubic lattice Zd – heat bath dynamics and the Swendsen-Wang algorithm – and prove that, under certain circumstances, the mixing in these algorithms is torpid or slow. In particular, we show that for heat bath dynamics throughout the region of phase coexistence, and for the Swendsen-Wang algorithm at the t...

solubility of hydrocarbons in water is important due to ecological concerns and new restrictions on the existence of organic pollutants in water streams. also, the creation of a thermodynamic model has required an advanced study of the phase equilibrium between water (as a basis for the widest spread muds and amines) and gas hydrocarbon phases in wide temperature and pressure ranges. therefore,...

Flavor changing neutral current processes in B and K decays in the supergravity model are revisited taking into account the recent progress of Higgs boson search experiments at LEP. Possible deviations of B–B 0 mixing, the CP violating K–K 0 mixing parameter ǫK from the standard model predictions are reduced significantly in a small tanβ region due to the constraints on the SUSY parameter space...

Despite its limitations, Prandtl’s mixing length model is widely applied in modelling turbulent free shear flows. extended addresses many of the shortfalls original model, but not so used, part due to additional mathematical complexities that arise derivation and implementation. Furthermore, both models, Prandtl neglects kinematic viscosity on basis it much smaller magnitude than viscosity. Rec...

introductionmountainous region of tuchal, with a height about 3962 meters above sea level, is located in north of tehran,capital of iran. with regards to population growth, and increasing urbanization, and air pollution issues, it isknown as one of the most important recreational area for health recovery and relaxation among people living intehran. as these spaces are known as public goods with...

This paper theoretically and experimentally investigates a micromixer based on combined hydrodynamic focusing and time-interleaved segmentation. Both hydrodynamic focusing and time-interleaved segmentation are used in the present study to reduce mixing path, to shorten mixing time, and to enhance mixing quality. While hydrodynamic focusing reduces the transversal mixing path, time-interleaved s...