HLPWWW (Version 8.7d) JESS copyright (C) 1985-2018 Licensee : Webmaster, Murdoch University, Australia Welcome. Tuesday, 19-Mar-19 13:29 The KEM interface of JESS is a major facility that permits kinetic calulations to be coupled with chemical equilibria. Differential equations that involve terms based on chemical speciation can be set up and solved. A number of algorithms are available, including Runga-Kutta and Bulirsch-Stoer with adaptive stepsize. The KEM interface can thus be used to model multicompartmental systems in which mass transport and/or chemical kinetics are important. You should note that the KEM subsystem is not included in the standard distribution of JESS. This is for various reasons, most difficult of of which is the need for a compiler compatible with with our own Lahey F77L-EM/32 FORTRAN 77 Version 5.10 for 80386/80486 computers). This is because KEM models involve the automatic production of FORTRAN code for the specific equilibrium calculations that are to be performed. Since such calculations can be intensive and tend to be executed very many times, it is impracticable for them to be performed in the more general but much less efficient way of program DOQED. Instead, the necessary mass balance equations, equilibrium constants and other data are embodied in a number of FORTRAN subroutines that must be compiled and linked into a program tailored specifically for each model. Contact the authors for further details about how, if possible, the KEM subsystem may be implemented for you.