Isotopic Grand Unification with the Inclusion of Gravity (revised version)

We introduce a dual lifting of unified gauge theories, the first characterized by the isotopies, which are axiom- preserving maps into broader structures with positive-definite generalized units used for the representation of matter under the isotopies of the Poincare' symmetry, and the second characterized by the isodualities, which are anti-isomorphic maps with negative-definite generalized units used for the representation of antimatter under the isodualities of the Poincare' symmetry. We then submit, apparently for the first time, a novel grand unification with the inclusion of gravity for matter embedded in the generalized positive-definite units of unified gauge theories while gravity for antimatter is embedded in the isodual isounit. We then show that the proposed grand unification provides realistic possibilities for a resolution of the axiomatic incompatibilities between gravitation and electroweak interactions due to curvature, antimatter and the fundamental space-time symmetries.Comment: 20 pages, Latex, revised in various details and with added reference

Integrated Modelling: Comparison Of State Variables, Processes And Parameters In Sewer And Waste Water Treatment Models

All the parts of an urban drainage system, i.e. the sewer system, the waste water treatment plant (WWTP) and the river, should be integrated into one single model to assess the performance of the overall system and for the development of design and control strategies assisting in its sustainable and cost effective management. Existing models for the individual components of the system have to be merged in order to develop the integrated tool. One of the problems arising from this methodology is the incompatibility of state variables, processes and parameters used in the different modelling approaches. Optimisation of an urban drainage system and of the waste water treatment process in particular requires a good knowledge of the waste water composition. As important transformations take place between the emission from the household and the arrival at the treatment facility, sewer models should include these transformations in the sewer system. At present, however, research is still need..

An immission based evaluation of the efficiency of the sewer-WWTP-river system under transient conditions

river system, continuous simulation, immissio

AN INTEGRATED METHODOLOGY FOR THE IMPACT ASSESSMENT OF THE DESIGN AND OPERATION OF THE SEWER- WASTE WATER TREATMENT PLANT SYSTEM ON THE RECEIVING WATER QUALITY

The poster deals with an integrated methodology for the assessment of the impacts of alternative sewer and waste water treatment plant (WWTP) management scenario’s on the quality of the receiving waters. The input time series for the flows and concentrations at the combined sewer overflow (CSO) structures and at the treatment plant intake are obtained through a continuous sewer simulation model. The WWTP model is based on a structured dynamic model describing COD removal and final settling. Special emphasis is put on the sludge inventory of the plant since this is considered to be the main problem area under storm conditions. The impacts of the emissions at the CSO structures and from the WWTP is simulated with the help of a river quality model. The methodology is illustrated on the combined sewer network of Brussels. Scenario’s without and with CSO control measures in the sewer are considered. At the treatment plant, the simulation study evaluates the effect of potential control strategies such as ratio control of the RAS, step feed and retention of first flush in a storm tank

Estimation de l’efficacité et de la durabilité par vieillissement naturel des produits protecteurs de la pierre : le programme HYBRIPROTECH

Les monuments en pierre ont traversé les siècles et sont les témoins de l’Histoire. S’ils nous paraissent éternels, ils n’en subissent pas moins des dégradations qu’il faut prendre en compte et y remédier afin de les préserver. La détérioration du bâti est un phénomène naturel et irréversible mais la révolution industrielle et toute la pollution chimique qu’elle a engendrée ont singulièrement accéléré le processus. La restauration des monuments est inévitable mais coûteuse. Elle peut aller d’un simple nettoyage des pierres jusqu’à leur remplacement lorsque les dommages sont trop importants. Afin de ralentir l’altération des pierres, de nombreux produits existent en tant que protecteurs de la pierre, ils ont donc un effet préventif. Dans le cadre du projet HYBRIPROTECH (programme Interreg IV), une collaboration franco-belge tente de mettre au point un produit préventif plus respectueux de l’environnement et aussi efficace et durable que les produits existant actuellement. Un test de vieillissement naturel de la pierre a été mis en place pendant deux ans pour connaître l’efficacité et la durabilité réelles des produits utilisés dans les restaurations. Au cours de ce test, des échantillons traités par deux hydrofuges et un biocide photocatalytique subissent l’effet du temps et de l’environnement. Des d’échantillons sont prélevés tous les six mois sur lesquels des analyses de la couleur, de la teneur en chlorophylle et d’hydrophobicité permettent de quantifier l’évolution de l’efficacité des produits. À l’issue du premier prélèvement, les résultats des analyses montrent un développement des micro-organismes après six mois d’exposition aux intempéries