Search
Skip to Search Results- 233Mechanical Engineering, Department of
- 233Mechanical Engineering, Department of/Journal Articles (Mechanical Engineering)
- 1Earth and Atmospheric Sciences, Department of
- 1Earth and Atmospheric Sciences, Department of/Journal Articles (Earth and Atmospheric Sciences)
- 1Physics, Department of
- 1Physics, Department of/Journal Articles (Physics)
- 52Kumar, Amit
- 46Hogan, James D.
- 30Carey, Jason P.
- 17Major, Paul W.
- 15Hogan, James
- 13Melenka, Garrett W.
- 12Life Cycle Assessment
- 8Brittle failure
- 8Digital image correlation
- 8Dynamic fragmentation
- 7Boron carbide
- 7GHG Emissions
-
Impact Deposition Behavior of Al/B4C Cold-Sprayed Composite Coatings: Understanding the Role of Porosity on Particle Retention
Download2023-03-22
Farid, Hannaneh Manafi, McDonald, André, Hogan, James David
This study explores the role of porosity in the impact deposition of a ceramic-reinforced metal-matrix (i.e., Al/B4 C) composite coating fabricated via cold spraying. The Johnson–Holmquist–Beissel constitutive law and the modified Gurson–Tvergaard–Needleman model were used to describe the high...
-
Impact Failure of Planetary Materials: Lateral Field Ejecta Measurements using Particle Image Velocimetry
Download2014
Schneider, Markus, Spray, John, Rogers, Robert, Hogan, James, Vincent, Gregory
The dynamic fragmentation of a fine grained granitoid material has been examined. Target thicknesses ranged from 7 to 40 mm and impact energies from 12 to 2,500 J. Combined particle image velocimetry and image enhancement techniques are introduced and have been used to measure the size and...
-
2015-01-01
Singh, Shikhar, Kumar, Amit, Jain, Siddharth
The production of biofuels (e.g., ethanol and biodiesel) requires a significant amount of water during feedstock production, transportation, and its conversion into biofuels. Therefore present study devoted to study the impact of biofuel production on water demand in Alberta. In scenario #1, it...
-
In Situ Synchrotron X-Ray Diffraction Analysis of Phase Transformation in Epitaxial Metastable hcp Nickel Thin Films, Prepared via Plasma-Enhanced Atomic Layer Deposition
Download2018-01-01
Motamedi, Pouyan, Bosnick, Ken, Cadien, Ken, Hogan, James D.
Ultrathin metal films have a wide variety of applications, especially in microelectronics. A key method to deposit these films is plasma-enhanced atomic layer deposition (PEALD), which is known for its ability to deposit thin films conformally and at relatively low temperatures. Building on the...
-
In-situ visualisation of dynamic fracture and fragmentation of an L-type ordinary chondrite by combined synchrotron X-ray radiography and microtomography
Download2021-05-01
Farbaniec, Lukasz, Chapman, David J., Patten, Jack R.W., Smith, Liam C., Hogan, James D., Rack, Alexander, Eakins, Daniel
The relationship between the dynamic mechanical properties of stony meteorites and their microstructures was investigated in-situ for an L-type ordinary chondrite using a split-Hopkinson pressure bar apparatus and ultra-high speed phase-contrast X-ray radiography at the European Synchrotron...
-
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,...
-
Integrated techno-economic and environmental assessments of sixty scenarios for co-firing biomass with coal and natural gas
Download2016-01-01
Agbor, Ezinwa, Oyedun, Adetoyese Olajire, Zhang, Xiaolei, Kumar, Amit
Displacement of fossil fuel-based power through biomass co-firing could reduce the greenhouse gas (GHG) emissions from fossil fuels. In this study, data-intensive techno-economic models were developed to evaluate different co-firing technologies as well as the configurations of these...
-
Investigating mechanisms of laser pulse-induced reflectivity modulations in photoacoustic remote sensing with a 10 million frames-per-second camera
Download2023-03-07
Haven, Nathaniel J. M., Martell, Matthew T., Li, Haoyang, Hogan, James D., Zemp, Roger J.
Photoacoustic remote sensing has been recently developed as an all-optical imaging modality capable of imaging a variety of endogenous contrast agents label-free. Initially predicted laser pulse-induced refractive index perturbation-based interrogation beam reflectivity modulations have been...
-
Investigation into the effects of stainless steel ligature ties on the mechanical characteristics of conventional and self-ligated brackets subjected to torque
Download2014
Heo, Giseon, Nobes, David S., Al Fakir, Hussam, Major, Paul W., Melenka, Garrett W., Carey, Jason P.
Objective: Torque is applied to orthodontic brackets in order to alter the buccal-lingual angulation of a tooth. One factor that can affect torque is the ligation mode used to retain the archwire in the bracket slot. The objective of this study was to investigate the effects of stainless steel...
-
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...