The dipole potential of a lipid bilayer membrane accounts for its much larger permeability to anions than cations and affects the conformation and function of membrane proteins. The absolute value of the dipole potential has been very difficult to measure, although its value has been estimated to range from 200 to 1,000 mV from ion translocation rates, the surface potential of lipid monolayers,...

In the present attempt, flow behavior and thermal convection of one type of nanofluids in a disc geometry was investigated using Computational Fluid Dynamics (CFD). Influence of gravity induced sedimentation also has been studied. The commercial software, Fluent 6.2, has been employed to solve the governing equations. A user defined function was added to apply a uniform external ma...

We derive the nucleon-nucleon interaction from Skyrme model using second order perturbation theory and dipole approximation to skyrmion dynamics. Unlike previous derivations, our derivation accounts for non-trivial kinetic potential parts of skyrmion-skyrmion lagrangian how they couple in quantum calculation. eight low energy potentials compare them with phenomenological Paris model, finding qu...

Field-induced structures in a ferrofluid with well-defined magnetite nanoparticles with a permanent magnetic dipole moment are analyzed on a single-particle level by in situ cryogenic transmission electron microscopy (2D). The field-induced columnar phase locally exhibits hexagonal symmetry and confirms the structures observed in simulations for ferromagnetic dipolar fluids in 2D. The columns a...

Delineation of oxide and sulfide zones in mineral deposits, especially in gold deposits, is one of the most essential steps in an exploration project that has been traditionally carried out using the drilling results. Since in most mineral exploration projects there is a limited drilling dataset, application of geophysical data can reduce the error in delineation of the sulfide and oxide zones....

The effect of solvent on the configurational characteristics of the polymeric chain is studied for the poly@-chlorostyrene)-benzene system. Among all possible configurations of benzene around the chain unit, two configurations, referred to as the parallel and perpendicular configurations, are found to lead to the lowest energy of interaction. The potential prevailing at the parallel configurati...

We evaluate the electrostatic potential and the electrostatic field created by a point charge and an arbitrarly oriented electrical dipole placed near a grounded perfectly conducting sphere. Induced surface charge distributions and possible variants of the problem are also discussed. PACS numbers: 03.50.De