Monte Carlo simulations within the grand canonical ensemble are used to obtain the joint distribution of density and energy fluctuations pL(ρ, u) for two model fluids: a decorated lattice gas and a polymer system. In the near critical region the form of pL(ρ, u) is analysed using a mixed field finite-size-scaling theory that takes account of liquidvapour asymmetry. Field mixing transformations ...

The Momentum Dependence of the ρ − ω Mixing Amplitude in a Hadronic Model. We calculate the momentum dependence of the ρ−ω mixing amplitude in a purely hadronic model. The basic assumption of the model is that the mixing amplitude is generated by N ¯ N loops and thus driven entirely by the neutron-proton mass difference. The value of the amplitude at the ω-meson point is expressed in terms of o...

Two-equation turbulence models, such as the k–epsilon (k–ε) and shear stress transport (SST) have limited accuracy in calculating film cooling effectiveness. Previous studies focused on modifying turbulent Prandtl number from perspective of thermal diffusion to improve prediction simulations. However, flow jet is crucial for simulating cooling. The calculated effectiveness differs experimental ...

A systematic theoretical study of the electronic and optical properties of Ga1−xInxAs self-assembled quantum-wires (QWR’s) made of short-period superlattices (SPS) with strain-induced lateral ordering is presented. The theory is based on the effective bond-orbital model (EBOM) combined with a valence-force field (VFF) model. Valence-band anisotropy, band mixing, and effects due to local strain ...

Nuclear binding energies and two-neutron separation energies are analysed starting from the liquid-drop model and the nuclear shell model in order to describe the global trends of the above observables. We subsequently concentrate on the Interacting Boson Model (IBM) and discuss a new method in order to provide a consistent description of both, ground-state and excited-state properties. We addr...