Affichage des résultats 21-40 de 15664
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Water retention curve and hydraulic conductivity function of highly compressible materials
Autre titre : Courbe de rétention d’eau et fonction de conductivité hydraulique des matériaux hautement compressibles(2007)Abstract: A model capable of describing the suction-induced consolidation curve (void ratio function) and water retention curve (WRC) of highly compressible materials (HCM) is developed, validated and finally applied to ... -
Evolution of biodegradation of deinking by-products used as alternative cover material
(2008)Abstract: Deinking by-products (DBP) have been used as alternative material for the construction of cover systems for municipal waste disposal facilities and acid-producing mine residues. Considering the high organic ... -
Biotic methane oxidation within an instrumented experimental landfill cover
Autre titre : Methane oxidation within an experimental landfill cover(2008)Abstract: An experimental landfill cover composed of a mixture of sand and compost was installed at the St-Nicéphore landfill in Québec (Canada). The mixture was evaluated as a potential substrate to promote methane (CH4) ... -
Measurement of gas diffusion through soils: Comparison of laboratory methods
(2008)Abstract: Gas movement through soils is important for ecosystems and engineering in many ways such as for microbial and plant respiration, passive methane oxidation in landfill covers and oxidation of mine residues. ... -
Causal model to describe the spatial and temporal variation of faecal coliform concentrations in a pilot-scale test consisting of ponds aligned in series
Autre titre : Causal model to describe the variation of faecal coliform concentrations in a pilot-scale test consisting of ponds aligned in series(2009)Abstract: In this study, the application of path analysis was tested to validate a causal model developed to verify the influence on several factors of the variation of faecal coliform concentration in pilot-scale ponds ... -
Methanotrophs and methanotrophic activity in engineered landfill biocovers
(2009)Abstract: The dynamics and changes in the potential activity and community structure of methanotrophs in landfill covers, as a function of time and depth were investigated. A passive methane oxidation biocover (PMOB-1) was ... -
Biocover performance of landfill methane oxidation: Experimental results
(2010)Abstract: An experimental passive methane oxidation biocover (PMOB) was constructed within the existing final cover of the St-Nicéphore landfill. Its substrate consisted of a 0.80-m-thick mixture of sand and compost. The ... -
Quantifying microbial methane oxidation efficiencies in two experimental landfill biocovers using stable isotopes
(2010)Abstract: Stable isotope analyses were performed on gas samples collected within two instrumented biocovers, with the goal of evaluating CH4 oxidation efficiencies (f0). In each of the biocovers, gas probes were installed ... -
Can soil gas profiles be used to assess microbial CH4 oxidation in landfill covers?
(2011)Abstract: A method is proposed to estimate CH(4) oxidation efficiency in landfill covers, biowindows or biofilters from soil gas profile data. The approach assumes that the shift in the ratio of CO(2) to CH(4) in the gas ... -
Modeling methane migration and oxidation in landfill cover materials with TOUGH2-LGM
(2009)Abstract: Methane oxidation within a Passive Methane Oxidation Barrier (PMOB) and the downward migration of molecular O2, whose presence is necessary for the oxidation reaction to occur, were simulated using the finite ... -
Dynamics and diversity of methanotrophs within an experimental landfill cover
Autre titre : Diversity and dynamics of methanotrophs within an experimental landfill cover soil(2009)Abstract: Three experimental biocovers were installed during the summer of 2006 at the St‐Nicéphore landfill in Québec (Canada). The main objectives of the experimental program were to assess the efficiency of these biocovers ... -
Evaluation of methane oxidation in a landfill cover material using a simple indicator approach
(2011)Abstract: Estimates of methane (CH4) oxidation rates (Rg) in biocovers are crucial for development of abatement strategies. Rg values were estimated in a landfill biocover with a simple approach based on gas diffusion ... -
Evaluation of the effectiveness of a cover with capillary barrier effect to control percolation into a waste disposal facility
(2011)Abstract: The goal of an instrumented experimental plot constructed on the Saint-Tite-des-Caps landfill site was to evaluate the field behaviour and the performance of a cover with capillary barrier effect (CCBE) to ... -
Assessment of the design of an experimental cover with capillary barrier effect using 4 years of field data
(2011)Abstract: One important step in the design of inclined covers with capillary barrier effect (CCBE) is the determination of the water diversion length (DL). Numerical simulations can predict the DL more precisely than ... -
Evaluation of methane oxidation efficiency of two biocovers: Field and laboratory results
(2012)Abstract: Biocovers constitute a promising technology to reduce fugitive and residual emissions from landfills throughout their operational life and after gas collection systems are turned off. The aim of this study was ... -
Effect of composts, nitrogen salts and NPK fertilizers on methane oxidation potential at different temperatures
Autre titre : Effects of compost, nitrogen salts and fertilizers on methanotrophic activity(2012)Abstract: The effects of compost, nitrogen salts, and nitrogen-phosphorous-potassium (NPK) fertilizers on the methane oxidation potential (MOP) of landfill cover soil at various temperatures were assessed. For this, we ... -
Evaluating methane oxidation efficiencies in experimental landfill biocovers by mass balance and carbon stable isotopes
(2012)Abstract: Biocovers are an alternative for mitigating fugitive and residual emissions of methane from landfills. In this study, we evaluated the performance of two experimental passive methane oxidation biocovers (PMOBs) ... -
Étude d'une famille d'aminocarbènes de chrome et de son utilisation dans la synthèse de la (±)-lupinine
(Université de Sherbrooke, 2020)Le premier chapitre de ce mémoire traite de la réaction d'insertion C-H formelle entre un aminocarbène de chrome et un alcène libre, et plus particulièrement la portée de cette réaction pour les carbènes possédant un ... -
L’appel du vide (création romanesque), suivi de L’identité masculine : Redéfinir ou perpétuer? Représentations de la masculinité dans Gabriel est perdu de Julien Roy et Nord Alice de Marc Séguin
(Université de Sherbrooke, 2020)Ce mémoire de recherche-création est tout d’abord né d’un questionnement : que signifie « être un homme » dans la société québécoise contemporaine? Sommes-nous encore sous l’emprise de la vision traditionnelle de la ... -
Les pratiques d’enseignement de l’éducation à la santé dans des classes de sciences et technologie au premier cycle du secondaire au Québec
(Université de Sherbrooke, 2020)La thèse est une étude de type exploratoire et descriptif des pratiques d'enseignement de l’éducation à la santé de quatorze enseignants de sciences et technologie du premier cycle du secondaire au Québec. L’étude vise à ...
