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Estimation Dun Champ De Permeabilite A Partir De Mesures De Charge Hydraulique
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Book Synopsis ESTIMATION D'UN CHAMP DE PERMEABILITE A PARTIR DE MESURES DE CHARGE HYDRAULIQUE by : Etienne Castelier
Download or read book ESTIMATION D'UN CHAMP DE PERMEABILITE A PARTIR DE MESURES DE CHARGE HYDRAULIQUE written by Etienne Castelier and published by . This book was released on 1995 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: EN HYDROGEOLOGIE, UN MILIEU POREUX EST PRINCIPALEMENT CARACTERISE PAR SON CHAMP DE PERMEABILITE, DONT LES VALEURS SONT RELIEES AUX VALEURS DE PRESSION DU FLUIDE TRAVERSANT LE MILIEU. L'ESTIMATION DU CHAMP DE PERMEABILITE A PARTIR DE QUELQUES MESURES DE PRESSION EST UN PROBLEME INVERSE. LES PROBLEMES INVERSES SONT MAL POSES AU SENS MATHEMATIQUE DU TERME, CE QUI EN REND LA RESOLUTION NUMERIQUEMENT INSTABLE. DEPUIS UNE QUARANTAINE D'ANNEES, ILS FONT L'OBJET DE NOMBREUX TRAVAUX, ET LES METHODES DE RESOLUTION SONT EN CONSTANTE EVOLUTION. EN HYDROGEOLOGIE, CES METHODES SE CLASSENT EN TROIS APPROCHES: LES METHODES DIRECTES, LES METHODES INDIRECTES ET LES METHODES STOCHASTIQUES. LA METHODE DE RESOLUTION ADOPTEE ICI EST UNE METHODE DIRECTE: ELLE REPOSE SUR LA RESOLUTION DIRECTE DE L'EQUATION QUI RELIE LE CHAMP DE PERMEABILITE AU CHAMP DE PRESSION. ELLE PEUT SE DECOMPOSER EN PLUSIEURS ETAPES: INTERPOLATION DES MESURES DE PRESSION, CONSTRUCTION DES TUBES DE COURANT DE L'ECOULEMENT, CONSERVATION DU FLUX DANS LES TUBES DE COURANT, ET CALCUL DES VALEURS DE PERMEABILITES PAR UNE METHODE DE MOINDRES CARRES. LA PREMIERE ETAPE, L'INTERPOLATION DES MESURES DE PRESSION, EST DETERMINANTE. ELLE NECESSITE DES TECHNIQUES DE REGULARISATION POUR STABILISER LES CALCULS NUMERIQUES. ELLE EST REALISEE PAR UN KRIGEAGE. ELLE PEUT S'INTERPRETER, DANS LE DOMAINE PHYSIQUE, EN TERMES DE PERMEABILITES EQUIVALENTES. POUR VALIDER EN PRATIQUE L'ALGORITHME PROPOSE, DES DONNEES SYNTHETIQUES DE PRESSION SONT CALCULEES PAR UN LOGICIEL D'ECOULEMENT SUR DES CHAMPS DE PERMEABILITE DONNES A PRIORI. LES VALEURS DE PERMEABILITE SONT RETROUVEES PAR L'ALGORITHME ETUDIE, PUIS COMPAREES AUX VALEURS A PRIORI. CE TEST PERMET D'EVALUER L'INFLUENCE DU NOMBRE ET DE LA PRECISION DES MESURES SUR LES RESULTATS D'INVERSION. LA METHODE EST ENFIN APPLIQUEE A DES DONNEES MESUREES DANS UN BARRAGE EN TERRE
Book Synopsis Multivariate Geostatistics by : Hans Wackernagel
Download or read book Multivariate Geostatistics written by Hans Wackernagel and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised third edition introduces geostatistics by emphasising the multivariate aspects for scientists, engineers and statisticians. Geostatistics offers a variety of models, methods and techniques for the analysis, estimation and display of multivariate data distributed in space or time. The text contains a brief review of statistical concepts, a detailed introduction to linear geostatistics, and an account of 3 basic methods of multivariate analysis. Applications from different areas of science, as well as exercises with solutions, are provided to help convey the general ideas. The introductory chapter has been divided into two separate sections for clarity. The final section deals with non-stationary geostatistics.
Download or read book L’eau dans le sol written by and published by Ed. Techniques Ingénieur. This book was released on 2001 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ESTIMATION DE PARAMETRES GEOSTATISTIQUES A PARTIR DE TESTS DE PUITS by : Yann Gautier
Download or read book ESTIMATION DE PARAMETRES GEOSTATISTIQUES A PARTIR DE TESTS DE PUITS written by Yann Gautier and published by . This book was released on 1997 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES CARACTERISTIQUES LOCALES D'UN RESERVOIR SOUS-TERRAIN (PETROLIER OU HYDROLOGIQUE) SONT EN GENERAL MAL CONNUES. EN PARTICULIER, LE NOMBRE DE DONNEES RELATIVES A LA PERMEABILITE EST INSUFFISANT POUR REFLETER SA REPARTITION DANS LE SOUS-SOL. ON EST AMENE DE PLUS EN PLUS SOUVENT A UTILISER L'OUTIL GEOSTATISTIQUE, AFIN DE MODELISER UN CHAMP DE PERMEABILITE QUI EST ALORS CONSIDERE COMME UNE REALISATION PARTICULIERE D'UNE VARIABLE ALEATOIRE DEPENDANT DE PLUSIEURS PARAMETRES GEOSTATISTIQUES PARMI LESQUELS LA VARIANCE ET LA LONGUEUR DE CORRELATION. CETTE THESE SE SEPARE EN DEUX PARTIES INTIMEMENT LIEES. DANS LA PREMIERE PARTIE, EN INTRODUISANT LE CONCEPT DE LA PERMEABILITE APPARENTE, ON ETUDIE LA RELATION ENTRE L'EVOLUTION DE LA PRESSION AU PUITS EN REGIME TRANSITOIRE (LE TEST DE PUITS) ET LE CHAMP DE PERMEABILITE STOCHASTIQUE. LE TEST DE PUITS CORRESPOND A UN PROCESSUS D'HOMOGENEISATION DES PERMEABILITES SPATIALES SUR DES VOLUMES DE PLUS EN PLUS GRANDS AU COURS DU TEMPS. LA PERMEABILITE APPARENTE, QUI EST EGALE A LA PERMEABILITE CONSTANTE DU MILIEU QUAND IL EST HOMOGENE, TEND VERS LA PERMEABILITE DE LA REGION PROCHE DU PUITS AUX TEMPS COURTS ET, VERS LA PERMEABILITE EQUIVALENTE DU MILIEU EN REGIME PERMANENT AUX TEMPS LONGS. PAR CONSEQUENT, ELLE DOIT CONTENIR DE L'INFORMATION RELATIVE A LA STRUCTURE SPATIALE DU CHAMP DE PERMEABILITE. C'EST CETTE INFORMATION QUI EST RECHERCHEE DANS LA SECONDE PARTIE OU NOUS CONSIDERONS UN PROBLEME INVERSE : ESTIMER DES PARAMETRES GEOSTATISTIQUES A PARTIR DE TESTS DE PUITS. ON SE PLACE DANS UN CADRE BAYESIEN. LES PARAMETRES SONT DETERMINES A L'AIDE DU PRINCIPE DU MAXIMUM DE VRAISEMBLANCE EN MAXIMISANT LA DENSITE DE PROBABILITE DES DONNEES DE TESTS DE PUITS PAR RAPPORT AUX PARAMETRES GEOSTATISTIQUES. CETTE METHODE, QUI IMPLIQUE L'UTILISATION D'UNE ESTIMATION RAPIDE DU TEST DE PUITS, PERMET D'EVALUER LA VARIANCE ET LA LONGUEUR DE CORRELATION A PARTIR DE TESTS DE PUITS EFFECTUES SUR DIFFERENTES REALISATIONS D'UN CHAMP DE PERMEABILITE.
Book Synopsis Comptes rendus de l'Académie des sciences by :
Download or read book Comptes rendus de l'Académie des sciences written by and published by . This book was released on 1999 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow and Contaminant Transport in Fractured Rock by : Jacob Bear
Download or read book Flow and Contaminant Transport in Fractured Rock written by Jacob Bear and published by Academic Press. This book was released on 2012-12-02 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past two or three decades, fractured rock domains have received increasing attention not only in reservoir engineering and hydrology, but also in connection with geological isolation of radioactive waste. Locations in both the saturated and unsaturated zones have been under consideration because such repositories are sources of heat and potential sources of groundwater contamination. Thus, in addition to the transport of mass of fluid phases in single and multiphase flow, the issues of heat transport and mass transport of components have to be addressed.
Book Synopsis Groundwater Dynamics in Hard Rock Aquifers by : Shakeel Ahmed
Download or read book Groundwater Dynamics in Hard Rock Aquifers written by Shakeel Ahmed and published by Springer Science & Business Media. This book was released on 2008-11-18 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the results and findings of the advanced research carried out in a pilot area with a thorough investigation of the structure and functioning of an aquifer in a granitic formation. It characterizes the hard rock aquifer system and examines its properties and behavior as well as systematically details the geophysical, geological and remote sensing applications to conceptualize such an aquifer system.
Book Synopsis Adhesion between polymers and concrete / Adhésion entre polymères et béton by : H. R. Sasse
Download or read book Adhesion between polymers and concrete / Adhésion entre polymères et béton written by H. R. Sasse and published by Springer. This book was released on 2013-11-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.
Book Synopsis Acoustics of Porous Media by : Thierry Bourbié
Download or read book Acoustics of Porous Media written by Thierry Bourbié and published by Editions TECHNIP. This book was released on 1987 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Faecal Sludge Management by : Linda Strande
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Book Synopsis Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit by : Stuart Hill
Download or read book Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multivariate Geostatistics by : Hans Wackernagel
Download or read book Multivariate Geostatistics written by Hans Wackernagel and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to geostatistics stressing the multivariate aspects for scientists, engineers and statisticians. The book presents a brief review of statistical concepts, a detailed introduction to linear geostatistics, and an account of three basic methods of multivariate analysis. Applications from very different areas of science, as well as exercises with solutions, are provided to help convey the general ideas. In this second edition, the chapters regarding normal kriging and cokriging have been restructured and the section on non-stationary geostatistics has been entirely rewritten.
Book Synopsis How to Design Wastewater Systems for Local Conditions in Developing Countries by : David M. Robbins
Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.
Book Synopsis Progress in Landslide Science by : Kyoji Sassa
Download or read book Progress in Landslide Science written by Kyoji Sassa and published by Springer Science & Business Media. This book was released on 2007-12-29 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents current progress in landslide science and consists of four parts: progress in landslide science, landslide dynamics, landslide monitoring, and landslide risk assessment. It provides useful information to those working on landslide risk-mitigation planning. It can be also used as an introductory textbook for college students who wish to learn fundamental scientific achievements in the field of landslide disaster reduction.
Book Synopsis Landslide Risk Assessment by : David Cruden
Download or read book Landslide Risk Assessment written by David Cruden and published by Routledge. This book was released on 2018-05-02 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 25 papers collected together in this volume present comprehensive coverage of all major aspects of landslide risk assessment, including the risk assessment framework, and methods for estimating probability of landsliding vulnerability and risk.
Book Synopsis Mineral and Thermal Groundwater Resources by : M. Albu
Download or read book Mineral and Thermal Groundwater Resources written by M. Albu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is it not generally believed that our town is a healthy place . . . a place highly com mended on this score both for the sick andfor the healthy? . . And then these Baths - the so-called 'artery' of the town, or the 'nerve centre' . . . Do you know what they are in reality, these great and splendid and glorious Baths that have cost so much money? . . A most serious danger to health! All that filth up in Melledal, where there's such an awful stench - it's all seeping into the pipes that lead to the pump-room! Henrik Ibsen, An Enemy of the People, 1882 Henrik Ibsen gave the 'truth about mineral water' more than 100 years ago in An Enemy of the People. His examples came not from the decadent bathing spas of Bohemia or Victorian Britain, but from the very edge of polite society, subarctic Norway! His masterpiece illustrates the central role that groundwaters and, in particular, mineral waters have played in the history of humanity: their economic importance for towns, their magnetism for pilgrims searching for cures, the political intrigues, the arguments over purported beneficent or maleficent health effects and, finally, their contami nation by anthropogenic activity, in Ibsen's case by wastes from a tannery. This book addresses the occurrence, properties and uses of mineral and thermal groundwaters. The use of these resources for heating, personal hygiene, curative and recreational purposes is deeply integrated in the history of civilization.
