DISSOLUTION ET RETENTION SELECTIVE D'HYDROCARBURES EN MILIEU POREUX SATURE. IMPACT DE L'AIR RESIDUEL ET ROLE DU MATERIAU SOLIDE LORS DE LEUR PROPAGATION PDF Download
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Author: OLIVIER.. RAZAKARISOA
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Book Description
DES EXPERIMENTATIONS CONDUITES AU LABORATOIRE SUR DES MODELES-COLONNES DE MILIEU POREUX, SE FOCALISANT SUR DES ETUDES DE LESSIVAGE DU CORPS D'IMPREGNATION FORME PAR DES MELANGES D'HYDROCARBURES ET DE PROPAGATION DE LEURS TRACES DISSOUTES, ONT PERMIS D'UNE PART DE MONTRER QUE LA DISSOLUTION SELECTIVE ET PROGRESSIVE DES CONSTITUANTS EST FONCTION DE LA NATURE/SPECIFICITE DE LA SOURCE DE POLLUTION ET D'AUTRE PART DE METTRE EN EVIDENCE LE ROLE PREPONDERANT JOUE PAR L'AIR RESIDUEL SUR LA RETENTION DES TRACES SOLUBLES D'ALCANES PENDANT LEUR MIGRATION EN MILIEU POREUX SATURE. LA SOLUBILITE N'EST PAS UN CRITERE SUFFISANT POUR EXPLIQUER LE MODE DE LESSIVAGE SELECTIF ET PROGRESSIF D'UN CORPS D'IMPREGNATION FORME PAR UN MELANGE COMPLEXE D'HYDROCARBURES. LE TRANSPORT DES TRACES SOLUBLES D'ALCANES EST FORTEMENT FREINE PAR LES EFFETS DE L'ECHANGE LIQUIDE-GAZ, MASQUANT LES PROPRIETES ADSORBANTES DE LA MATRICE SOLIDE. POUR LES HYDROCARBURES MONOAROMATIQUES, LE PRINCIPAL PHENOMENE OBSERVE EST L'ECHANGE LIQUIDE-SOLIDE. LORS DE LA PROPAGATION DES TRACES SOLUBLES DES DIVERS CONSTITUANTS D'UNE SOURCE DE CONTAMINATION FORMEE PAR UN MELANGE DE PLUSIEURS ESPECES D'HYDROCARBURES, L'INFLUENCE DES PARAMETRES SOLUBILITE, CONSTANTE DE HENRY ET COEFFICIENT DE DISTRIBUTION DOIVENT ETRE PRIS EN COMPTE SIMULTANEMENT POUR ETUDIER LEUR RETENTION SELECTIVE. PAR DES SIMULATIONS DES RESULTATS EXPERIMENTAUX OBTENUS, DES MODELES DE TRANSPORT ET D'ECHANGES ADAPTES AUX PHENOMENES DE RETENTION RENCONTRES SONT PROPOSES
Author: OLIVIER.. RAZAKARISOA
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Book Description
DES EXPERIMENTATIONS CONDUITES AU LABORATOIRE SUR DES MODELES-COLONNES DE MILIEU POREUX, SE FOCALISANT SUR DES ETUDES DE LESSIVAGE DU CORPS D'IMPREGNATION FORME PAR DES MELANGES D'HYDROCARBURES ET DE PROPAGATION DE LEURS TRACES DISSOUTES, ONT PERMIS D'UNE PART DE MONTRER QUE LA DISSOLUTION SELECTIVE ET PROGRESSIVE DES CONSTITUANTS EST FONCTION DE LA NATURE/SPECIFICITE DE LA SOURCE DE POLLUTION ET D'AUTRE PART DE METTRE EN EVIDENCE LE ROLE PREPONDERANT JOUE PAR L'AIR RESIDUEL SUR LA RETENTION DES TRACES SOLUBLES D'ALCANES PENDANT LEUR MIGRATION EN MILIEU POREUX SATURE. LA SOLUBILITE N'EST PAS UN CRITERE SUFFISANT POUR EXPLIQUER LE MODE DE LESSIVAGE SELECTIF ET PROGRESSIF D'UN CORPS D'IMPREGNATION FORME PAR UN MELANGE COMPLEXE D'HYDROCARBURES. LE TRANSPORT DES TRACES SOLUBLES D'ALCANES EST FORTEMENT FREINE PAR LES EFFETS DE L'ECHANGE LIQUIDE-GAZ, MASQUANT LES PROPRIETES ADSORBANTES DE LA MATRICE SOLIDE. POUR LES HYDROCARBURES MONOAROMATIQUES, LE PRINCIPAL PHENOMENE OBSERVE EST L'ECHANGE LIQUIDE-SOLIDE. LORS DE LA PROPAGATION DES TRACES SOLUBLES DES DIVERS CONSTITUANTS D'UNE SOURCE DE CONTAMINATION FORMEE PAR UN MELANGE DE PLUSIEURS ESPECES D'HYDROCARBURES, L'INFLUENCE DES PARAMETRES SOLUBILITE, CONSTANTE DE HENRY ET COEFFICIENT DE DISTRIBUTION DOIVENT ETRE PRIS EN COMPTE SIMULTANEMENT POUR ETUDIER LEUR RETENTION SELECTIVE. PAR DES SIMULATIONS DES RESULTATS EXPERIMENTAUX OBTENUS, DES MODELES DE TRANSPORT ET D'ECHANGES ADAPTES AUX PHENOMENES DE RETENTION RENCONTRES SONT PROPOSES
Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author: Wade H. Shafer
Publisher: Springer
ISBN: 9780306341205
Category : Science
Languages : en
Pages : 320
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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis· seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac· tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 20 (thesis year 1975) a total of 10,374 theses titles from 28 Canadian and 239 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 20 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.
Author: Mårten T. Landahl
Publisher: Courier Dover Publications
ISBN: 0486832775
Category : Science
Languages : en
Pages : 147
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Book Description
This classic monograph on unsteady transonic flow — the flow of air encountered at speeds at or near the speed of sound — is of continuing interest to students and professionals in aerodynamics, fluid dynamics, and other areas of applied mathematics. After a brief Introduction, Swedish physicist Mårten T. Landahl presents a chapter in which the two-dimensional solution is derived, succeeded by a discussion of its relation to the subsonic and supersonic solutions. Three chapters on low aspect ratio configurations follow, covering triangular wings and similar planforms with curved leading edges, rectangular wings, and cropped delta wings, and low aspect ratio wing-body combinations. The treatment concludes with a consideration of the experimental determination of air forces on oscillating wings at transonic speeds.
Author: Malcolm D Bolton
Publisher: Universities Press
ISBN: 9788173714252
Category : Soil mechanics
Languages : en
Pages : 464
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Book Description
Covers all the soil mechanics and foundation engineering topics that are commonly included in civil engineering degree courses, and provides a number of springboards into related advanced topics. Although it is intended principally to satisfy the needs of student civil engineers, this guide should also prove useful to those practicing engineers who are unaware of the powerful and elegant reconstruction of the subject which has been made possible by the recent concepts of plasticity, dilatancy and critical states.
Author: Terry W. Sturm
Publisher: DIANE Publishing
ISBN: 1428995048
Category : Bridges
Languages : en
Pages : 147
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Book Description
Experimental results and analyses are given in this report on bridge abutment scour in compound channels. Experiments were conducted in a laboratory flume with a cross section consisting of a wide floodplain adjacent to a main channel. The embankment length, discharge, sediment size, and abutment shape were varied, and the resulting equilibrium scour depths were measured. Water-surface profiles, velocities, and scour-hole contours were also measured. In the report, a methodology is developed for estimating abutment scour that takes into account the redistribution of discharge in the bridge contraction, abutment shape, sediment size, and tailwater depth. The independant variables in the proposed scour formula are evaluated at the approach-channel cross section and can be obtained froma one-dimensional water-surface profile computer program such as the Water-Surface Profile Program (WSPRO). The proposed scour evaluation procedure is outlined and illustrated, including consideration of the time required to reach equilibrium scour. The proposed methodology is applied to two cases of measured scour in the field.
Author: Universidade de Coimbra
Publisher:
ISBN: 9789892021577
Category : Fire weather
Languages : en
Pages : 355
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Book Description
