Abstract Nature is never at a steady state. Natural history generated by ever-new and ever-interacting forces that produce continuous changes. At virtually all timescales, the geological record shows these changes do not cancel each other out and, thus, state utopic. However, we need of equilibrium as starting point for modelling Nature, steady-state condition widely used reference in idealisat...

The cross-stream migration of a deformable drop in two-dimensional Poiseuille flow at finite Reynolds numbers is studied numerically. In the limit of a small Reynolds number (<1), the motion of the drop depends strongly on the ratio of the viscosity of the drop fluid to the viscosity of the suspending fluid. For a viscosity ratio 0.125, the drop moves toward the centre of the channe while for t...

The goal of this talk will be to familiarize the audience with the nature and prevalence of anxiety disorders and document their impact on society. Anxiety is the most common form of psychopathology affecting an estimated one in four people at some point during their lifetimes. In comparison to all types of diseases and injuries, a 2013 JAMA report indicated that anxiety disorders were the fift...

We consider a two-echelon inventory system where the exogenous demands occur only at the retailer locations, and the demand rates are functions of an underlying continuoustime Markov chain. This underlying process may represent, for example, general economic conditions, the number of active users in the system, etcetera. Each retailer location follows a base-stock policy that is independent of ...

Product form Markov chains are a class of compositional Markovian models that can be proved to benefit from a decomposed solution of the steady-state distribution (i.e. the steady-state distribution is given by the product of the components’ steady-state distributions). In this paper we focus on the Boucherie product processes, a specific class of product form Continuous Time Markov Chains. We ...

materials exhibit significant creep behavior at temperatures above 40% of their absolute melt temperature. lead, tin and their alloys are such materials which experience significant creep behavior in room temperature. one of the most important applications of the tin-lead alloys is soldering electronic circuits in electronic industry, and for lead are isolation walls and wet batteries. room tem...

In this paper, transient solution of two dimensional asymmetric thermal and mechanical stresses for a hollow cylinder made of piezoelectric material is developed. Transient temperature distribution, as function of radial and circumferential directions and time with general thermal boundary-conditions, is analytically obtained, using the method of separation of variables and<br...