The École Polytechnique de Montréal is an engineering school/faculty affiliated with the Université de Montréal in Montreal, Quebec, Canada. It ranks first in Canada for the scope of its engineering research. It is occasionally referred to as Montreal Polytechnic, although in Quebec English its French name is more commonly used. The school offers graduate and postgraduate training, and is very active in research. Following tradition, new bachelors of engineering graduating from the École Polytechnique receive an Iron Ring, during the Canadian Ritual of the Calling of an Engineer ceremony. Wikipedia.
Ecole Polytechnique de Montréal and PepsiCo | Date: 2014-02-11
PET nanocomposite materials exhibit improved physical properties in a PET composite as a result of the intercalation of non smectite-type clay materials while maintaining transparency and barrier properties. In some aspects, kaolin particles are modified with potassium acetate (KAc) to increase interlamellar distances and improve particle dispersion. In other aspects, calcined kaolin particles are used and may be chemically treated by an aqueous alcohol solutions method. Any loss in the molecular weight of PET composite can be offset by the further incorporation of surface compatibilizers such as silane coupling agents and other process additives such as molecular chain extenders.
Ecole Polytechnique de Montréal | Date: 2013-05-13
It has been discovered that compositions comprising magnetically heatable entities (MHEs), therapeutic agents and optional carriers such as hydrogels can be piloted from an injection point in a blood vessel to a specific location of the blood-brain barrier (BBB) using for example, a magnetic resonance imaging (MRI) device for propelling, steering and tracking of MHEs. Once the MHEs have reached their target location at or near the desired blood vessel of the BBB, an alternating magnetic field causes the MHEs to controllably heat up, thereby reversibly increasing the permeability of the BBB and allowing the therapeutic (or cytotoxic) agent to enter brain tissue.
Ecole Polytechnique de Montréal | Date: 2013-06-14
A drain catheter comprises a proximal drain tube having a proximal end adapted to outlet drained liquids and a distal end. A tube interface is at a distal end of the proximal drain tube, the tube interface having at least two canals open to a distal end of the proximal drain tube, the at least two canals being in fluid communication with the proximal drain tube. Two or more distal drain tubes each having a proximal end and a distal end, the proximal end of each said distal drain tube being connected to a corresponding one of the canals such that the distal drain tubes are each in fluid communication with the corresponding one of the canals, the distal end of each said distal drain tube being open to collect liquids, a lumen of the distal drain tubes being smaller than a lumen of the proximal drain tube.
Ecole Polytechnique de Montréal | Date: 2014-11-14
A gas turbine engine shroud for surrounding one of a rotor and a stator having a plurality of radially extending airfoils is provided. The shroud includes an annular body defining an axial and a radial direction. The body has a radially inner surface and a plurality of indentations is annularly defined therein. Each of the plurality of indentations has a depth of an order of magnitude of a clearance between the one of the rotor and the stator and the inner surface. The plurality of indentations is defined in a region of the inner face defined axially between projections of leading and trailing edges of the airfoils onto the inner surface of the annular body.
Federal Mogul Corporation and Ecole Polytechnique de Montréal | Date: 2015-09-16
A powder metal composition for high wear and temperature applications is made by atomizing a melted iron based alloy including 3.0 to 7.0 wt. % carbon; 10.0 to 25.0 wt. % chromium; 1.0 to 5.0 wt. % tungsten; 3.5 to 7.0 wt. % vanadium; 1.0 to 5.0 wt. % molybdenum; not greater than 0.5 wt. % oxygen; and at least 40.0 wt. % iron. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming elements to oxidize during atomization. The powder metal composition includes metal carbides in an amount of at least 15 vol. %. The microhardness of the powder metal composition increases with increasing amounts of carbon and is typically about 800 to 1,500 Hv50.