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Properties of biobased epoxy resins from epoxidized linseed oil (ELO) crosslinked with a mixture of cyclic anhydride and maleinized linseed oil
Model for ancient Greek and Roman coinage production
International audience Coinage production of ancient powers such as Athens and Rome is usually inferred from die statistics of monetary issues. The present work applies a Kaplan-Meier analysis of resistance to failure to 29 sets of well-documented monetary issues. The failure rate function assumes a...
Repair of critical size defects in the rat cranium using ceramic-reinforced PLA scaffolds obtained by supercritical gas foaming
Bioresorbable scaffolds made of poly(L-lactic acid) (PLA) obtained by supercritical gas foaming were recently described as suitable for tissue engineering, portraying biocompatibility with primary osteoblasts in vitro and interesting mechanical properties when reinforced with ceramics. The behavior...
Dynamic Visual Servoing of Rotary Wing Unmanned Aerial Vehicles
Specialization: Control Systems Degree: Doctor of Philosophy Abstract: Visual servoing uses camera feedback to control a robot's motion. In particular, Image-based Visual Servoing (IBVS) laws minimize an error signal defined in the image space. This thesis considers IBVS design for rotary-wing Unman...
Reliability Study and Maintenance Decision Making of Wheel Temperature Detectors
Specialization: Engineering Management Degree: Master of Science Abstract: In 2011, Canadian Pacific (CP) Railway decided to replace the visual No.1 Air Brake test with a new Automated Train Brake Effectiveness (ATBE) for condition monitoring of rail cars through both physical inspection and measure...
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Instrumentation Design, System Identification, and LQR/LQG Control of a Small Scale Helicopter
Degree: Master of Science Abstract: The interest of Unmanned Aerial Vehicles (UAV) for civil application has increased dramatically in recent years. With improvement in computer hardware, lightweight sensors, and light material, the cost of UAVs has reduced significantly. UAVs with vertical takeoff...
Queuing Networks and the Topological Design of Supply Chain Systems
International audience Manufacturing firms are linking their internal processes to external suppliers and customers. The resulting supply chain is often a very large network of activities and resources. Modeling and optimization of such complex systems is a new area of research for which exact analy...
Experimental study of libration-driven zonal flows in a straight cylinder
International audience Forced longitudinal librations are oscillatory perturbations of the rotation rate of a planet resulting from a gravitational coupling with orbital partners. In the present study we report the first experimental evidence that a librating cylindrical container can viscously driv...
Seismic characterization of fractured rocks based on Biot's theory of poroelasticity
La présence de fractures dans les formations géologiques influence leurs propriétés méca¬niques et hydrauliques. Cela confère à l'imagerie et à la caractérisation des fractures une importance particulière pour de nombreuses applications dans les sciences de la Terre, de l'environnement et de l'ingén...
Sustainability problems of the Giza pyramids
Abstract The Pyramids complex in Giza consists of three main pyramids in addition to the famous Sphinx and small queen’s pyramids. Recently, the pyramids of Cheops (Khufu), Chephren (Khafre) and Mykerinos (Menkaure) on the Giza plateau have been threatened by a rising groundwater table resulting fro...
“Mirabili visioni”: from movable books to movable texts
This contribution reconstructs the history of movable books, books created for a wide range of different purposes (teaching, mnemonics, play, divining, etc.) including mechanical or paratextual devices demanding or soliciting the interaction of the reader. The investigation runs from hand-written bo...
Development and Characterization of Polyester and Acrylate-Based Composites with Hydroxyapatite and Halloysite Nanotubes for Medical Applications
An Experimental and Theoretical Study of the Rate of Adsorption in Porous Media
Degree: Master of Science Abstract: In the development of a numerical model for the water cycle on Mars, adsorption of water vapour in the Martian regolith acts as a significant sink and retards the transport of mass. Adsorption on Mars cannot be studied directly, so a numerical model was created, a...
Investigation and Application of Voussoir Beam Theory for the Stability Evaluation of Underground Excavations
Specialization: Mining Engineering Degree: Doctor of Philosophy Abstract: Voussoir beam theory, also named as arching action, has been widely accepted and applied in design and construction of both surface and underground structures. This investigation focused on its underground applications with mo...
Micro/Nano Devices for Chemical Analysis
Since the concept of micro total analysis systems (µ-TAS) has been advocated, various kinds of micro/nano devices have been developed by researchers in many fields, such as in chemistry, chemical engineering, mechanical engineering, electric engineering, biology, and medicine, among others. The anal...
Modeling Rogue Waves with the Kadomtsev-Petviashvili Equation
Specialization: Applied Mathematics Degree: Master of Science Abstract: In this thesis, we will study singular solutions of the Kadomtsev-Petviashvili equation (u_t+6uu_x+u_xxx)_x+3α^2 u_yy=0, α^2=±1 that will help improve our understanding and if possible give indicators to the occurrence of rogue...
Kinematics of active deformation across the Western Kunlun mountain range (Xinjiang, China), and potential seismic hazards within the southern Tarim Basin.
International audience The Western Kunlun mountain range is a slowly converging intracontinental orogen where deformation rates are too low to be properly quantified from geodetic techniques. This region has recorded little seismicity, but the recent July 2015 (M w 6.4) Pishan earthquake shows that...
In vitro mechanical fatigue behavior of poly-epsilon-caprolactone macroporous scaffolds for cartilage tissue engineering: Influence of pore filling by a poly(vinyl alcohol) gel
Mechanical and Shape-Memory Properties of Poly(mannitol sebacate)/Cellulose Nanocrystal Nanocomposites
Oenological characteristics of Vitis vinifera L. Cabernet Sauvignon grapes from vineyards treated with ozonated water
Investigation of Ultrasonic Acoustic Standing Wave Separation of Particles in a Multi-wavelength Macro-scale Resonator
Degree: Doctor of Philosophy Abstract: This thesis presents an investigation of macro-scale (>5mm) multi-wavelength acoustophoresis. This is a technique used for the filtration of micro-particles from the containing suspension. It uses the primary acoustic force generated by an ultrasonic acoustic p...
Solid and Fluid Coupling in Discrete Element Method
Specialization: Geotechnical Engineering Degree: Doctor of Philosophy Abstract: The Discrete Element Method (DEM) has been developed and used in modelling dry granular materials with or without cohesive bonding between particles. The incorporation of fluid flow in the DEM analysis is difficult since...
Subtle variations in polymer chemistry modulates substrate stiffness and fibronectin activity
Numerical experiments of flow and transport in a variable-aperture fracture subject to effective normal stresses
International audience This paper investigates numerically characteristics of the fluid flow and solute transport in variable-aperture fractures under effective normal stress conditions. In order to represent a nonlinear relationship between the supported effective normal stress and the fracture ape...
Saturated regulation with derivative variable gain for robot manipulators