A multiphase model for liquid-solid and solid-liquid phase transitions is developed using the framework of the general equation for the nonequilibrium reversible-irreversible coupling (GENERIC). The morphology is described by the cluster size distribution function, including both unstable embryos as well as stable crystallites, for which a diffusion equation is proposed. The driving forces ther...

Using heuristic arguments based on the trace formulas, we analytically calculate the semiclassical two-point correlation form factor for a family of rectangular billiards with a barrier of height irrational with respect to the side of the billiard and located at any rational position p/q from the side. To do this, we first obtain the asymptotic density of lengths for each family of periodic orb...

In this paper we address again the issue of the scale anomaly in quantum mechanical models with inverse square potential. In particular we examine the interplay between the classical and quantum aspects of the system using in both cases an operatorial approach.

Reduction of dimensionality is crucial for the deeper understanding of the mechanism for large-amplitude conformational transitions of complex molecules. By taking up a six-atom cluster as an illustrative example, we present a general methodology to understand conformational transitions of molecules in terms of the low-dimensional dynamics of molecular gyration radii. The dynamics of gyration r...

The complexity of ERP implementation can create high profile failures. Technology transfer scholars identify a difference in culture, either organizational or national, as a potential barrier to successful implementation of any complex technology. We explore this barrier to ERP system quality and consider user support, top management support and consultant quality as possible factors for success.

Based on a single particle model which describes the time evolution of the wave function during tunneling across a one dimensional potential barrier we study the proton decay of Pb from excited states with non-vanishing angular momentum `. Several quantities of interest in this process like the decay rate , the period of oscillation Tosc, the transient time ttr, the tunneling time ttun and the ...

High rainfall condition, especially in tropical countries, often cause flooding or inundation on road section, urban road. Puddles that do not enter are hampered can damage to the This be overcome by inlet design of drainage channel is suitable for conditions field. By paying attention distance between inlets, dimensions, and types adjusted rainwater discharge width existing Street Inlet a hole...

temporomandibular joint ankylosis causes limitation in mouth opening and establishes severe deformity and asymmetry in patient’s face, especially in children. surgery is the only treatment. this study was conducted to compare the effect of two surgical approaches, gap arthropasty and interpositional gap arthroplasty, on rate of maximum interincisal opening in temporomandibular joint ankylosis. ...

Introduction: Angle and internal position of lateral pterygoid muscle leads to contraction over two half of the mandible in maximum opening and protrusion position so it can affects impression prosthetic procedures. The aim of this study was to evaluate the mandibular flexure in two transverse and antro-posterior dimensions. Methods: Seventy edentulous patients at Mashhad Faculty of Dentistry a...