File	Date	Author	Commit
AppletJljp.java	2013-12-21	Doriano Brogioli	[6f36b6] Again structure: improved division between Ion ...
EquationSystem.java	2013-12-24	Doriano Brogioli	[50bf00] the parsing of symbolic expressions is performe...
Example.java	2013-12-21	Doriano Brogioli	[d136ea] Automatic calculation of fluxes phi
Ion.java	2013-12-21	Doriano Brogioli	[6f36b6] Again structure: improved division between Ion ...
IonPanel.java	2013-12-21	Doriano Brogioli	[d136ea] Automatic calculation of fluxes phi
IonSet.java	2014-03-13	Doriano Brogioli	[1ce42d] coordinata x
IonSetPanel.java	2013-12-24	Doriano Brogioli	[e08606] Exception is now thrown when all the concentrat...
Jljp.java	2013-12-21	Doriano Brogioli	[6f36b6] Again structure: improved division between Ion ...
LJPPanel.java	2013-12-27	Doriano Brogioli	[9104f3] Calculate/abort button
README.txt	2020-02-09	Doriano Brogioli	[0f37c3] migration
Solver.java	2013-12-27	Doriano Brogioli	[adf446] Fast solver

Read Me

Important information

This project has been moved here:

https://github.com/swharden/JLJP

The information given in SF site are no more updated.

The package can be used both as single classes (see Example.java) and
a graphical interface: run Jljp.class.

First of all, the ions must be added. In the graphical panel, put the
name of the ion in the text field, and press "Add". Please use names
like "Na", "Cl". Do not put the charge. For ions that can have various
charges, use e.g. FeII and FeIII. If possible, avoid numbers.

For each ion, seven parameters must be defined.


    Name: e.g. Na, Zn, Cl.
    Charge (relative to e): e.g. 1 for sodium, 2 for zinc, -1 for chlorine.
    Mobility, in m/s / N (not the electrokinetic mobility!)
    cdadc: see below.
    c0 (M): concentration at one end of the interface.
    cL (M): concentration at the other end of the interface.

The parameter phi, the flux of the ion, is one of the outputs of the
program. Only the relative value matters.

For some common ions, the program automatically fills in the correct
values of charge and mobility.

The parameter cdadc is cd ln a/dc, i.e. the derivative of the
logarithm of the activity with respect to the concentration,
multiplied by the concentration. The units of "c" and "a" are M,
mole/liter. The quantity c d ln a/dc is dimensionless. In the
approximation of small concentrations, the activities are close to the
concentrations, and c d ln a/dc is approximately 1. It is possible to
put any formula in this field, depending on the concentrations of the
ions, e.g. : "3tan(Na/Cl)".

It is necessary to define two ions as "x" and "last". 
The values of c0 and cL for the ion "last", provided
by the user, are neglected, and are calculated from the values of the
other ions, by imposing the electro-neutrality.

The resulting voltage is displayed in the corresponding text field. It
is also possible to send a table with the concentrations of the ions,
along the liquid junction, to a desired PrintStram.