Rate theory modeling

Eyring Rate Theory Model of the Current-Voltage Relationships of Ion Channels in Excitable Membranes "... 

EYRING RATE THEORY MODEL OF THE CURRENT-VOLTAGE RELATIONSHIPS... 

Battery Model GHK Constant Field Formulation GHK with Correction for Fixed Surface Charge Eyring Rate Theory Models of Ionic Currents Ion Pump Ion Exchangers Synapses Calcium as a Second Messenger... 

Eyring Rate Theory Models of Ionic Currents... 

An alternative to the Nernst-Planck models of charge diffusion is the rate theory model, which views ion permeation through a channel or pump from a statistical thermodynamics perspective. In this approach, one or more energy barriers are assumed to exist at fixed points in the channel and ions permeate... 

FIGURE 22.4 Schematic representation of energy barrier in a rate theory model of ionic current A single energy barrier of height Gb located at a fraction of the membrane thickness is assumed in this example. 

Sadler DM, Gilmer GH (1988) Selection of lamellar thickness in polymer crystal growth a rate-theory model. Phys Rev B 38(8) 5684—5693... 

Eyring rate theory models of ionic currents in, 22-7-22-8... 

Rate theory modeling of irradiation-induced segregation in alloys... 

As discussed in Section 7.2.3, radiation can induce segregation of alloy elements at defect sinks such as grain boundaries [101]. Typically, RIS is a result of inverse Kirkendall (IK) effects in which the evolution of defect concentration field drives the evolution of alloy composition field. ID rate theory modeling [44,101] is widely used to describe the coupled evolution between defect flux and composition flux. These rate theory models considered both vacancy-mediated and interstitial-mediated solute transport, as well as point defect recombination and defect loss to dislocations. At steady state, the solute segregation direction depends on the relative diffiisivity of different species-defect coupled diffusion. In austenitic Fe-Cr-Ni alloys, the vacancy-mediated solute diffusion alone is sufficient in describing the RIS trend and the interstitial-mediated solute diffusion is usually assumed to have a neutral contribution to RIS [44]. However, in Fe-Cr F/M alloys, both interstitial- and vacancy-mediated diffusion should be considered [102]. 

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