Skip to main content
Ir a la página de inicio de la Comisión Europea (se abrirá en una nueva ventana)
español es
CORDIS - Resultados de investigaciones de la UE
CORDIS
Contenido archivado el 2024-04-15

GEOCHEMICAL MODELLING

Objetivo

TO DEVELOP A VERSTILE AND USERFRIENDLY PROGRAM-PACKAGE FOR GEOCHEMICAL MODELLING. THE PROGRAMS ARE INTENDED FOR PC'S AND SHOULD HAVE A WIDE APPLICABILITY AND TAKE ADVANTAGE OF NEW AND RECENT INSIGHT IN FUNDAMENTAL PROCESSES.
JENSEN is a program for the computation of chemical equilibria in aqueous systems. The structure, function and use of the computer program intended for personal computers (PCs) is described.

The program, which is written in Turbo Pascal, version 4, is fundamentally similar to most other geochemical programs, but combines in 1 program several of the merits these programs have. The intention has been to make an advanced program, which also should be user friendly and fast, and to attain this several new algorithms have been developed and implemented.

The program has a built in database mainly based on the CHEMVAL compilation containing data for 395 soluble species and 149 minerals. The program can find equilibria in the presence of all or some of these soluble species, under conditions of fixed or floating pH and/or pE. In the present version the program can identify which minerals and how much of them there will be formed when equilibrium is established. The program by itself eliminates a bad guess of a candidate for precipitation. Iteration limits and parameters can be changed during a computation, so the program is capable of solving almost any equilibrium problem encountered. To help in these processes the JENSEN program displays several menus, which guide the user to a successful path.

LITTLE JOE is an expert system to support geochemical modelling. The construction of a minor expert system for use in the evaluation of analytical data for the composition of ground waters from limestone formation is described. Although the example given is rather limited in scope, the application of the expert system for the evaluation of the analytical data clearly demonstrates the mature expert knowledge embedded in the system which is contrasted with the uncritical acceptance of analytical or theoretical data.

With the overall neglect of ion exchange and the formation of solid solutions in geochemical calculations, geochemistry is probably not yet advanced to the stage where the development of larger expert systems can be recommended.
1. TO TRANSLATE THE EARLIER WHATIF-PROGRAMS INTO PASCAL. THE PC VERSION TURBO PASCAL 4.0 HAS BEEN FOUND CONVENIENT.
1.1. SIMULTANEOUSLY THE LIMITATIONS OF THE EARLIER VERSION ARE REMOVED TO SECURE THE VERSATILITY AND INCREASED SCOPE FOR APPLICATIONS.
1.2. ALGORITHMS FOR THE CALCULATIONS ON PHENOMENA LIKE MULTIELEMENT ION-EXCHANGE AND COPRECIPITATIONS ARE CONSTRUCTED AND ADDED TO THE MAIN PROGRAM.
2.2. EXPERIMENTAL WORK ON ADSORPTION PHENOMENA ON CALCITE ARE UNDERTAKEN. THE FORMATION OF SOLID SOLUTIONS "IN" SURFACE LAYER IS CONSIDERED A POSSIBILITY.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..

Para utilizar esta función, debe iniciar sesión o registrarse

Programa(s)

Programas de financiación plurianuales que definen las prioridades de la UE en materia de investigación e innovación.

Tema(s)

Las convocatorias de propuestas se dividen en temas. Un tema define una materia o área específica para la que los solicitantes pueden presentar propuestas. La descripción de un tema comprende su alcance específico y la repercusión prevista del proyecto financiado.

Datos no disponibles

Convocatoria de propuestas

Procedimiento para invitar a los solicitantes a presentar propuestas de proyectos con el objetivo de obtener financiación de la UE.

Datos no disponibles

Régimen de financiación

Régimen de financiación (o «Tipo de acción») dentro de un programa con características comunes. Especifica: el alcance de lo que se financia; el porcentaje de reembolso; los criterios específicos de evaluación para optar a la financiación; y el uso de formas simplificadas de costes como los importes a tanto alzado.

CSC - Cost-sharing contracts

Coordinador

RISOE NATIONAL LABORATORY
Aportación de la UE
Sin datos
Dirección
Frederiksborgvej 399
ROSKILDE
Dinamarca

Ver en el mapa

Coste total

Los costes totales en que ha incurrido esta organización para participar en el proyecto, incluidos los costes directos e indirectos. Este importe es un subconjunto del presupuesto total del proyecto.

Sin datos
Mi folleto 0 0