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A comparative study between optimal metal and composite rotors for flywheel energy storage systems
Download2018-01-01
Most recent research on flywheel rotors has focused on high-speed composite rotors as the storage element of the flywheel energy storage system (FESS). Literature research indicates that this is primarily due to the high specific energy of composites compared to metals. However, a quantitative...
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A techno-economic assessment of large scale wind-hydrogen production with energy storage in western Canada
Download2016-01-01
Olateju, Babatunde, Kumar, Amit, Secanell, Marc
Hydrogen production via steam methane reforming (SMR) dominates the supply to refining complexes worldwide, resulting in significant greenhouse gas (GHG) emissions. There is a considerable demand for clean hydrogen pathways that are economically competitive with SMR. The development of a 563 MW...
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2014-01-01
Forst, Darren, Nijjar, Simrit, Flores-Mir, Carlos, Carey, Jason, Secanell, Marc, Lagravere, Manuel
The objective of this study is to analyze a set of previously developed and proposed image segmentation protocols for precision in both intra- and inter-rater reliability for in vivo tooth volume measurements using cone-beam computed tomography (CBCT) images. Six 3D volume segmentation procedures...
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Computational Analysis of Gas Transport in Fuel Cell Catalyst Layer under Dry and Partially Saturated Conditions
Download2019-01-01
Sabharwal, M., Pant, L. M., Patel, N., Secanell, Marc
A computational study is performed to analyze oxygen transport in dry and wet stochastically reconstructed catalyst layers (CLs). CL stochastic reconstructions are generated using random penetrating spheres of a given particle size that agree with the statistical correlation functions of a...
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Initial experimental and theoretical investigation of solar molten media methane cracking for hydrogen production
Download2014-01-01
Paxman, D., Trottier, S., Nikoo, M., Secanell, Marc, Ordorica-Garcia, G.
Previous work assessed the fundamental technical and market risks associated with the development and deployment of solar fuels technology in Alberta. It identified methane cracking in solar-molten media as the hydrogen production technology featuring the best combination of technical risk,...
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Investigation of in vivo 3D Cone-Beam Computed Tomography Tooth Volume Measurement Protocols
Download2014
Secanell, Marc, Lagravère, Manuel O., Nijjar, Simrit, Carey, Jason P., Forst, Darren, Flores-Mir, Carlos
Background The objective of this study is to analyze a set of previously developed and proposed image segmentation protocols for precision in both intra- and inter-rater reliability for in vivo tooth volume measurements using cone-beam computed tomography (CBCT) images. Methods Six 3D volume...
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Multi-Objective Optimization Framework for Landmark Measurement Error Correction in Three Dimensional Cephalometric Tomography
Download2013
Lagravère, Manuel O., Carey, Jason P., DeCesare, Alessandro, Secanell, Marc
The purpose of this study is to minimize errors that occur when using a four vs six landmark superimpositioning method in the cranial base to define the co-ordinate system. Cone beam CT volumetric data from ten patients were used for this study. Co-ordinate system transformations were performed....
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2015-01-01
Pant, L. M., Mitra, S. K., Secanell, Marc
A reconstruction methodology based on different-phase-neighbor (DPN) pixel swapping and multigrid hierarchical annealing is presented. The method performs reconstructions by starting at a coarse image and successively refining it. The DPN information is used at each refinement stage to freeze...
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2017-01-01
Secanell, Marc, Jarauta, Alex, Kosakian, Aslan, Sabharwal, Mayank, Zhou, Jie Jeremy
Proton exchange membrane fuel cell (PEMFC) operation involves multiphase mass, charge, and heat transport, complex electrochemical reactions, and physical processes that occur at multiple spatial and time scales, e.g., from double-layer effects occurring in milliseconds to catalyst degradation...