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Статті в журналах з теми "Sols résiduels"
De Kimpe, Christian R., Marc R. Laverdière, Gérard Laflamme, and Michel Rompré. "Formation et évolution des sols sur matériaux calcaires dans le piémont appalachien, Québec." Géographie physique et Quaternaire 39, no. 3 (December 4, 2007): 299–306. http://dx.doi.org/10.7202/032610ar.
Повний текст джерелаSoulat, Patrick, Stephen Bonnet, Mathieu Le Floch, Bernard Tardieu, Daniel Billaux, Claudio Carvajal, Géraldine Rougier, and Alain Pecker. "L’utilisation de sols résiduels tropicaux dans la construction du barrage de Moreau (Guadeloupe)." Revue Française de Géotechnique, no. 160 (2019): 3. http://dx.doi.org/10.1051/geotech/2019015.
Повний текст джерелаBarbier, Jean. "L'évaluation quantitative des anomalies géochimiques en sols résiduels: une aide pour le choix des prospects." Journal of Geochemical Exploration 32, no. 1-3 (April 1989): 445–52. http://dx.doi.org/10.1016/0375-6742(89)90090-3.
Повний текст джерелаYatrabi, A., and A. Nejmeddine. "Fractionnement et mobilité des métaux lourds dans un sol en amont des eaux usées de tanneries." Revue des sciences de l'eau 13, no. 3 (April 12, 2005): 203–12. http://dx.doi.org/10.7202/705391ar.
Повний текст джерелаBertin, G., and M. Schiavon. "Les résidus non extractibles de produits phytosanitaires dans les sols." Agronomie 9, no. 2 (1989): 117–24. http://dx.doi.org/10.1051/agro:19890201.
Повний текст джерелаBouazza, A., and M. T. Ghili. "Etude des caractéristiques résiduelles des sols du site instable de Bouchegouf (Algerie)." Bulletin of Engineering Geology and the Environment 57, no. 3 (March 26, 1999): 295–300. http://dx.doi.org/10.1007/s100640050048.
Повний текст джерелаThiebeau, Pascal. "Relation entre taux de couverture du sol et biomasse de résidus de cultures : une simplification prédictive est envisageable." Cahiers Agricultures 28 (2019): 30. http://dx.doi.org/10.1051/cagri/2019031.
Повний текст джерелаAubert, Guy. "Les teneurs en métaux lourds dans les sols naturels et les sols enrichis en résidus d’épuration urbaine du Sud de la France." Ecologia mediterranea 16, no. 1 (1990): 383–93. http://dx.doi.org/10.3406/ecmed.1990.1678.
Повний текст джерелаVaitilingom, Gilles, Zéphirin Mouloungui, Anthony Benoist, François Broust, Tizane Daho, and Bruno Piriou. "Vers une génération plus « verte » de biodiesels." OCL 28 (2021): 2. http://dx.doi.org/10.1051/ocl/2020067.
Повний текст джерелаHelson, Olivier, Javad Eslami, Anne-Lise Beaucour, Albert Noumowe, and Philippe Gotteland. "Étude parametrique de matériaux modèles : aide au dimensionnement des ouvrages souterrains issus de mélanges sol-ciment." Revue Française de Géotechnique, no. 162 (2020): 2. http://dx.doi.org/10.1051/geotech/2020004.
Повний текст джерелаДисертації з теми "Sols résiduels"
Antseleve, Michel. "Comportement mécanique des sols résiduels tropicaux : cas des latérites et des saprolites de la Nouvelle-Calédonie." Vandoeuvre-les-Nancy, INPL, 1999. http://www.theses.fr/1999INPL095N.
Повний текст джерелаMouali, Lila. "Etude expérimentale et numérique du comportement hydromécanique des sols résiduels tropicaux : application à la modélisation sismique d'un barrage en remblai aux Antilles." Thesis, Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0606.
Повний текст джерелаThe use of residual tropical soils for the construction of embankment dams is an important issue. Dams located in tropical regions are often subject to seismic risk. Most often, foundations with weak characteristics are purged and replaced with compacted soils. Thus, the seismic behavior of the dams located in these regions depend on the dynamic properties of the compacted residual soils. The evaluation of the seismic behavior of a dam is based on the capacity of the models to predict the evolution of the rigidity of the structure during the seismic stress. It is therefore important to have models allowing to predict the shear modulus at small strains, the reduction curve of the normalized shear modulus and the damping curve. The objectives of our research work are to contribute to the improvement of the knowledge of the cyclic mechanical behavior of compacted residual tropical soils and to propose models making it possible to predict their behavior. To answer these, an experimental study of the cyclic properties of soils sampled from the site of a dam under construction in the French West Indies was carried out using undrained cyclic triaxial test objectives and resonant column tests. It is thus shown that the existing equations in the literature are not adapted to our experimental results. Predictive equations for the determination of Gmax, G / Gmax and D are developed. On the basis of the results obtained, nonlinear dynamic numerical simulations were obtained at the scale of the sample and of the structure using the flac software
Schiavon, José Antonio. "Behaviour of helical anchors subjected to cyclic loadings." Thesis, Ecole centrale de Nantes, 2016. http://www.theses.fr/2016ECDN0014/document.
Повний текст джерелаHelical anchors, used widely to resist uplift loading for a variety of applications, including in transmission towers, pipelines, offshore structures, etc., are subjected to environmental cyclic loads that influence the anchor performance and may induce fatigue failure. However, the influence of cyclic loading on helical anchor behaviour is unknown. A comprehensive evaluation of the effect of cyclic loading on the load-displacement response of single-helix anchors in sandy soils is presented here, including an interaction diagram to help designers evaluate the impact of different conditions in cyclic loadings. The experimental work of this thesis includes geotechnical centrifuge modelling and field load tests. The centrifuge model tests were carried out with reduced scale models of helical anchors in sand, at IFSTTAR (Nantes, France). The field load tests were performed on hekical anchors installed in a tropical residual soil of the Experimental Site of the University of Sao Paulo (Sao Carlos, Brazil). In addition, numerical modelling was used to predict the pre- and post-cyclic responses of the single-helix anchors tested in a centrifuge. The main findings of this research are : (a) helical anchor behaviour is governed by helix bearing resistance and no loss of helix bearing capacity was observed in the range of cyclic loadings tested, (b) the degardation of shaft resistance was noticed mainly during the first 100 cycles, when the accumulation of permanent displacements is more significant, (c) an interaction diagramshowing the different conditions of cyclic stability is proposed from the results of the experimental data, (d) modified values of the bearing capacity factor in tension (Nq) are suggested for the estimation of post-cyclic uplift capacity of single-helix anchors in sand, (e) the installation effect of the anchor should be taken into account in the numerical model in order to obtain reliable predictions of the helical anchor performance
Vedere, Charlotte. "Impact du potentiel matriciel sur la biodégradation de résidus végétaux - Evolution spatio-temporelle de la détritusphère." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASB014.
Повний текст джерелаAs a result of the heterogeneous spatial distribution of microorganisms and substrates in soil and restricted accessibility, biodegradation occurs mainly in hot-spots, such as in the detritusphere induced by decomposing plant residues. Knowing the characteristics of the volume of soil involved in decomposition of a given organic substrate would help understand and predict biodegradation, while this information is not yet known for given soil characteristics. Our objectives were: (i) to identify the volume of soil involved in the biodegradation of plant residues and (ii) to determine to what extent this volume is affected by soil moisture under diffusive conditions, by monitoring the mineralisation and spatio-temporal evolution of residues-C and microorganisms in soil at the scale of the microbial habitat. We incubated repacked soil cores, with a central layer of 13C labelled maize residues at three different matric potentials. We monitored the 13C and total C mineralisation over 601 days of incubation, we separated soil slices with increasing distances from the residues at 3, 7, 15 and 45 days and analysed therein the 13C from the residue, the microbial community structure and its activity by processing PLFA and 13C-PLFA but also prepared thin sections for fluorescence and nanoSIMS observations. Mineralisation and priming effect increased with soil moisture, but beyond 70 days, they both become higher than expected in dry conditions. A few mm thick detritusphere was established as fast as the soil humidity was important, with an increasing gradient of 13C, total, 13C PLFA and observed colonies towards the residues layer. Most 13C from the residues was located in the first two millimetres of the detritusphere and little impacted by matric potential. The degrading microbial communities were different from the total communities but similar in wet and dry conditions. Both bacteria and fungi were involved in biodegradation after 7 days of incubation. The use of analysis methods of points repartition between them and according to macropores allowed us to obtain little widespread micro-scale data in soil sciences on the distribution of soil microorganisms. The aggregation of microorganisms seems little affected by the water content and the proximity of the residue. On the other hand, distribution gradients of microorganisms around the macropores were stronger in dry than wet conditions and in contact with the residue. The NanoSIMS observations could not give very reliable results but were consistent with a rapid assimilation of the resources available after a few days of incubation. It seems more generally that in the case of dry soil, part of the processes are slower (establishment of the detritusphere, development of fungi, biodegradation, priming effect, distribution of microorganisms around the pores, etc.), however, their intensity is not lessened
Boupassia, Christian. "Etude des sols et des résidus miniers de la région de Moanda au Sud-Est du Gabon : perspectives de réhabilitation du plateau manganésifère de Bangombé." Dijon, 2004. http://www.theses.fr/2004DIJOS017.
Повний текст джерелаSauvadet, Marie. "Impacts de la qualité et quantité des résidus de culture sur la structure et le fonctionnement des communautés du sol. Application aux systèmes de grandes cultures du Nord-Est de la France." Thesis, Reims, 2016. http://www.theses.fr/2016REIMS041.
Повний текст джерелаCrop residues decomposition is an essential process in cultivated lands since it constitutes the main source of organic matter in these systems. Although the underlying mechanisms of residues degradation of varying qualities and quantities are well-known, their consequences on soil biota and the related functions are less understood. To better understand this process, we chose to follow at key steps of decomposition the evolution of major components of soil diversity (microorganisms, nematodes, micro-arthropods and macrofauna), the evolution of litter quality, the main carbon (C) and nitrogen (N) fluxes and enzyme activities associated, for different quantities and qualities of litter added. The experiments were set up at different spatial and temporal scales (field, mesocosm and microcosm experiments) in function of our objectives.Litter quantity and quality have distinct effects on soil biota. Litter quantity influences the detritivores, and litter quality influences more generally the main functional groups. Labile litter impacts more the bacterial energy channel and the macrodetritivores at the first stages of decomposition, and recalcitrant litter impacts more the fungal energy channel and the mesodetritivores at the latter stage of decomposition. These evolutions are mirrored by the enzymatic dynamics. More specifically, fauna top-down regulations (L.terrestris and nematodes manipulations) exhibit high effects on soil enzymes. Similarly, soil micro-food web initial composition drives enzymatic dynamics. Contrastingly, litter C mineralization depends mainly on its initial quality. This PhD shows the importance of litter management on the biological functions of cultivated soils. Varying litter quality and quantity appear as a mean to influence soil health and some ecosystem services on the long term
Dubé, Jean-Sébastien. "Modifications hydrodynamiques du comportement des métaux lourds dans un sol hétérogène présentant une contamination résiduelle en NAPL : étude sur la contamination mixte des sols." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ65448.pdf.
Повний текст джерелаTonnelat, Stéphane. "Interstices urbains Paris - New York : entre contrôles et mobilités, quatre espaces résiduels de l'aménagement." Paris 12, 2003. https://athena.u-pec.fr/primo-explore/search?query=any,exact,990002133370204611&vid=upec.
Повний текст джерелаSanchez-Hachair, Arnaud. "Solution de remédiation de terrains pollués aux "charrées de chrome" : élaboration d’une méthode d’électrocinétique couplée à la réduction chimique." Thesis, Lille, 2018. http://www.theses.fr/2018LIL1R011.
Повний текст джерелаChromite Ore Processing Residues (COPR) are materials with strongly alcaline pH (>10) containing fairly soluble cement phases bearing hexavalent chromium as a substituted anion. The pore water contains high concentrations of mobile Cr(VI) often above 100 mg/L. The bulk concentration of Cr(VI) is 4 - 7 g /kg COPR. Hexavalent chromium is a toxic compound. Historically, COPR was used for embankments and backfills in construction works. This was the case for an infrastructure in the north of France. In this study we aimed to develop a remediation method suitable for treatment of this backfills in-situ. We coupled the electrokinetics technique with in situ chemical reduction of Cr(VI). In this method, the added reductive compound migrates through the material under the effect of an electric field. We show that Cr(VI) reduction to the less toxic Cr(III) is possible with as high as 97% efficiency. Results show that the crystallized mineral phases are not impacted by the treatment. However, 60 to 70% of the mineral phases are amorphous as quantification studies show. The pH change during treatment fragilizes them, resulting in some dissolution, reprecipitation, electromigration and electrophoretic transport phenomena. Cr(III)-hydroxide, produced during the treatment, also appear to be in a mobile colloidal form. Optimisations of the technique are possible, in particular the control of pH changes and the suppression of colloidal Cr(III) mobility. Industrial perspectives are promising. This method can be adapted to other materials and redox sensitive pollutants
Vian, Jean-François. "Comparaison de différentes techniques de travail du sol en agriculture biologique : effet de la structure et de la localisation des résidus sur les microorganismes du sol et leurs activités de minéralisation du carbone et de l'azote." Phd thesis, AgroParisTech, 2009. http://pastel.archives-ouvertes.fr/pastel-00005158.
Повний текст джерелаКниги з теми "Sols résiduels"
Canada. Dept. of National Defence., Canada Environment Canada, Canada Health Canada, Canada. Indian and Northern Affairs Canada., Macleod Institute for Environmental Analysis., Environmental Management Solutions (EMS) Inc., Canada. Ministère de la défense nationale., Canada. Ministère des Affaires Indiennes et du Nord., Canada Environnement Canada, and Canada Santé Canada, eds. The technical feasibility of landfilling PCB-amended painted materials : 1999 workshop proceedings =: Faisabilité technique de la mise en décharge contrôlée de matériaux enduits de peintures contenant de BPC : compte rendu de l'atelier de 1999. Ottawa, Ont: Government of Canada = Gouvernement du Canada, 2000.
Знайти повний текст джерелаCanada. Dept. of National Defence., Environmental Management Solutions (EMS) Inc., and Macleod Institute for Environmental Analysis., eds. The technical feasibility of landfilling PCB-amended painted materials: 1999 workshop proceedings. [Ottawa]: Govt. of Canada, 2000.
Знайти повний текст джерелаThe technical feasibility of landfilling PCB-amended painted materials: Workshop proceedings synopsis. [Ottawa]: Govt. of Canada, 1998.
Знайти повний текст джерелаCanada. Dept. of National Defence., Canada Environment Canada, Canada. Indian and Northern Affairs Canada., Environmental Management Solutions (EMS) Inc., Canada. Ministère de la défense nationale., Canada Environnement Canada, and Canada. Ministère des affaires indiennes et du Nord Canadien., eds. The technical feasibility of landfilling PCB-amended painted materials : workshop proceedings synopsis =: La faisabilité technique de mise en décharge contrôlée de matériaux enduits de peintures contenant des BPC : compte rendu abrégé de l'atelier. Ottawa, Ont: Government of Canada = Gouvernement du Canada, 1998.
Знайти повний текст джерелаТези доповідей конференцій з теми "Sols résiduels"
de Cidrac, L., L. Radoï, R. Pecorari, and T. Nguyen. "Tumeur à cellules géantes : à propos d’un cas récidivant et agressif à localisation mandibulaire." In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603021.
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