Now showing documents 1-10 of 32
Organization of silicon nanocrystals by localized electrochemical etching
Abstract : An approach to form a monolayer of organized silicon nanocrystals on a monocrystalline Si wafer is reported. Ordered arrays of nanoholes in a silicon nitride layer were obtained by combining electron beam ...
Fabrication of x-ray masks using evaporated electron sensitive layers for back patterning of membranes
Abstract : A process aimed at fabricating proximity x-ray lithography masks is presented. In this technique, the Ta absorber layer is deposited and patterned on the back side of the membrane and nonspin-coated electron ...
Source separation with one ear : proposition for an anthropomorphic approach
Abstract : We present an example of an anthropomorphic approach, in which auditory-based cues are combined with temporal correlation to implement a source separation system. The auditory features are based on spectral ...
Biotic methane oxidation within an instrumented experimental landfill cover
Other titre : Methane oxidation within an experimental landfill cover
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) ...
Evolution of biodegradation of deinking by-products used as alternative cover material
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 ...
Modeling methane migration and oxidation in landfill cover materials with TOUGH2-LGM
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 ...
Measurement of gas diffusion through soils: Comparison of laboratory methods
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. ...
Water retention curve and hydraulic conductivity function of highly compressible materials
Other titre : Courbe de rétention d’eau et fonction de conductivité hydraulique des matériaux hautement compressibles
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 ...
Determination of the diffusion coefficient of oxygen for a cover system including a pulp and paper by-product
ABSTRACT: Among the several solutions that have been proposed to curb the problem posed by the generation of acid rock drainage (ARD), the placement of covers with capillary barrier effect (CCBE) has received particular ...
Design of inclined covers with capillary barrier effect
Abstract: A design procedure is proposed to minimize water infiltration into landfills in optimizing the water diversion length of inclined covers with capillary barrier effect (CCBE). This design procedure aims at ...