In this paper we study the accruement and decay of asset pricing bubbles under the assumption that young agents behave boundedly rational when rst entering the market and then gain more and more experience when growing older, nally reaching a state of perfect rational behavior. Therefore we set up an overlapping generations model where agents form their beliefs about the payo of a risky asset b...

Z. Rapti, A. Smerzi, K. Ø. Rasmussen and A. R. Bishop 1 Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and School of Mathematics, Institute for Advanced Study, Einstein Drive 1, Princeton, New Jersey 08540 2 Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 and 3 Istituto Nazionale di ...

In microfluidic devices, droplets are normally formed using T-junction or flow focus mechanisms. While both afford a high degree of control over drop formation, they are limited in maximum production rate by the jetting transition. Here, we introduce a new drop formation mechanism that is not limited by jetting, allowing much faster drop production.

The rise and deformation of a gas bubble in an otherwise stationary liquid contained in a closed, right vertical cylinder is investigated using a modified volume-of-fluid (VOF) method incorporating surface tension stresses. Starting from a perfectly spherical bubble which is initially at rest, the upward motion of the bubble in a gravitational field is studied by tracking the liquid–gas interfa...

Analytical and numerical methods are applied to investigate the e ect of variable surface tension, induced by the presence of surfactant, on a bubble evolving in 2-D Stokes ow. The evolution is driven by an extensional ow from a four roller mill. Of particular interest is the possible spontaneous occurrence of a cusp singularity on the bubble surface. Using complex variable methods, exact solut...

A high-order accurate shock- and interface-capturing scheme is used to simulate the collapse of a gas bubble in water. In order to better understand the damage caused by collapsing bubbles, the dynamics of the shock-induced and Rayleigh collapse of a bubble near a planar rigid surface and in a free field are analysed. Collapse times, bubble displacements, interfacial velocities and surface pres...

Bubble formation and growth on a water-splitting semiconductor photoelectrode under illumination with above-bandgap radiation provide a direct measurement of the gas-evolving reaction rate. Optical microscopy was used to record the bubble growth on single-crystal strontium titanate immersed in basic aqueous electrolyte and illuminated with UV light at 351/364 nm from a focused argon laser. By a...

This paper analyses adiabatic gas bubble formation, growth, and detachment which are produced from a submerged needle in water with the aim of elucidating the impact of surface tension on bubble properties. A simulation model is utilized to enable examination of the problem for the mentioned parameter. The numerical results are compared with experimental observations on the bubble for validatio...

We study the formation of vortices in a U(1) gauge theory following a firstorder transition proceeding by bubble nucleation, in particular the effect of a low velocity of expansion of the bubble walls. To do this, we use a twodimensional model in which bubbles are nucleated at random points in a plane and at random times and then expand at some velocity vb < c. Within each bubble, the phase ang...