Self-assembly of surface-active agents at solid–liquid interfaces is critical for many processes in nature and technology, including the stability of suspension, detergency, wetting and mineral separation. Historically, a detailed understanding of nanometerscale layers has emerged. However, surprisingly little is known about their dynamics—the key to non-equilibrium phenomena. Even in equilibri...

This paper develops a dynamic general equilibrium model which tries to reconcile the observation that aggregate movements of exports and imports are "disconnected" from real exchange rate movements, while …rm-level exports co-move signi…cantly with the real exchange rate. Firms are heterogenous, facing recurrent aggregate and product-speci…c productivity shocks, choose which goods to export, an...

We develop a model for solute transport in porous media, which takes into account equilibrium and non-equilibrium multiple-site adsorption. Binary ion exchange is included. Adsorption rate formulations and their isotherms are reviewed and their mathematical properties investigated. This forms the basis of the study of travelling wave solutions in the second part of the paper.

The exchange rate regime in Iran is practically fixed. The Central Bank of Iran (CBI) has committed itself to trying to bring about a particular exchange rate regime to meet two important targets: 1. Sustaining competitiveness of the economy, 2. Acquiring the share of foreign reserves in monetary base in a predetermined level. Since 2001 the share of foreign reserves in monetary base has i...

making capital and investment is the main driving forces of economic development. based on the investment sensitivity to the changes of some of macro-economic variables and risk and uncertainty, the present study evaluated the effective factors on investment in private sector in iran during 1980-2007. at first, the uncertainty variables of real informal exchange rate, nominal interest rate and ...

     The aim of the present research was to study the effects of weak cation exchange resins, polacrilex with exchangeable H+ and polacrillin potassium and strong cation exchange resin sodium polystyrene sulfonate on water uptake behavior of ranitidine hydrochloride. Drug resin complexes (DRC) were prepared and evaluated for the percentage of moisture gain when placed in a humidity c...

one of the ways to be informed on the extent of activities in various industries is to measure the rate of nominal protection. this paper tries to calculate the nominal and effective protection in order to examine the exchange rate unification impacts on the protection of pulp and paper industries with the aim of performing the exchange rate unification policy. therefore, nominal protection rat...