A multi-country Schumpeterian growth model is constructed. Because of technology transfer, all R&D-performing countries converge to parallel growth paths. All other countries stagnate. Any parameter change that would have raised a country’s growth rate in standard Schumpeterian theory will permanently raise its productivity and per-capita income relative to other countries and raise the world g...

This paper attempted a numerical examination of the problem of unsteady free convection with heat and mass transfer from an isothermal vertical flat plate to a non-newtonian fluid saturated porous medium. The flow in the porous medium was described via the Darcy-BrinkmanForchheimer model. The simultaneous development of the problem of boundary layers was obtained numerically by finite differenc...

The role of fast protein dynamics in enzyme catalysis has been of great interest in the past decade. Recent "heavy enzyme" studies demonstrate that protein mass-modulated vibrations are linked to the energy barrier for the chemical step of catalyzed reactions. However, the role of fast dynamics in the overall catalytic mechanism of an enzyme has not been addressed. Protein mass-modulated effect...

The Continuously Operating Raw Pan Simulation and Evaluation (CORPSE) is a steady-state computerised simulation of such a pan, based on the solution by the Newton-Raphson method of simultaneous algebraic equations which describe the mass and heat transfer within and the material balances over each compartment. Each compartment is considered as a stirred tank reactor, with unknown components bei...

In this paper, we propose a generalized framework for modeling the behavior of prominent congestioncontrol protocols. Specifically, we define a general class of loss-based congestion-control (LB-CC) mechanisms and demonstrate that many variants of TCP, including those being proposed for high-speed networks, belong to this class. Second, we develop a stochastic model to predict the transfer time...

An improved PEMFC model is developed. The improvement of the model includes modification for electrochemical reaction and mass transfer limitation at cathode and anode side. Global sensitivity analysis is used for evaluating the sensitivity of the model in parameter estimation. The simulation results reveal that estimated mass transfer coefficients depend on current density. The comparison show...

The bidirectional transport of calcium in rat liver was studied using slices labeled with Ca(47) in a closed two compartment system. Steady-state conditions were observed with influx and efflux transfer coefficients of 0.070 and 0.018 per minute, respectively. The rapidly exchanging cell fraction of calcium existed at a concentration three times higher than the average cell concentration of cal...

Nomenclature a = stoichiometric coefficient av = surface-to-volume ratio C;, Cb; = surface and bulk concentration, vol % Da = Damkohler number Eif R = activation energy, K F = steady-state function h = heat-transfer coefficient K, = adsorption equilibrium coefficient k, k0 = reaction rate constant and preexponential factor, respectively kc = mass-transfer coefficient l = apparent reaction order...

The objective of this study is to find the temperature distribution of a slab as it moves through the pusher-type preheat furnaces. First, the imaginary planes method (IPM) as a new and applicable method for calculation of radiation heat transfer in industrial furnaces is studied, and the two-dimensional form of this method is used to calculate heat flux and temperature distribution in the furn...