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Skip to Search Results- 77Gänzle, Michael G.
- 52Mark A. Lewis
- 49Kumar, Amit
- 38Hogan, James D.
- 37Serpe, Michael J.
- 24Fayek, Aminah Robinson
- 116Agricultural, Food and Nutritional Science, Department of
- 116Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
- 99Mechanical Engineering, Department of
- 98Mechanical Engineering, Department of/Journal Articles (Mechanical Engineering)
- 88Civil and Environmental Engineering, Department of
- 82Chemistry, Department of
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Computational investigation of the effect of microstructure on the scratch resistance of tungsten-carbide nickel composite coatings
Download2021-08-15
Parsazadeh, Mohammad, Fisher, Gary, McDonald, André, Hogan, James D.
Sliding wear was simulated for tungsten carbide-nickel (WC-Ni) composites with different WC particle sizes and volume fractions under various normal forces. Johnson-Cook and Johnson-Holmquist models were employed to simulate the mechanical behaviour of the Ni and WC phases, respectively. Using...
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Computational modelling of the effect of microstructure on the abrasive wear resistance of tungsten-carbide nickel composite coatings under sub-critical cyclic impact loading
Download2022-05-15
Parsazadeh, Mohammad, Fisher, Gary, McDonald, André, Hogan, James D.
Abrasive wear was simulated for tungsten carbide-nickel (WC–Ni) composite coatings with different volume fractions of reinforcing particles under abrasive cyclic loading. Using parallelized computing approaches, for the first time in the literature, the effects of reinforcing particle and normal...
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2020-07-31
Dean Koch, Subhash Lele, Mark A. Lewis
When working with contemporary spatial ecological datasets, statistical modellers are often confronted by two major challenges: (I) the need for covariance models with the flexibility to accomodate directional patterns of anisotropy; and (II) the computational effort demanded by high-dimensional...
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Computations Reveal That Electron-Withdrawing Leaving Groups Facilitate Intramolecular Conjugate Displacement Reactions by Negative Hyperconjugation.
Download2016-01-01
Noey, Elizabeth L., Jiménez-Osés, Gonzalo, Clive, Derrick J. L., Houk, K. N.
Intramolecular conjugate displacement (ICD) reactions, developed by the Clive group, form carbocycles and cyclic amines by intramolecular nucleophilic attack on a Michael acceptor with an allylic leaving group. Quantum mechanical investigations with density functional theory show that ICDs...
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Concordance between pre-service teachers’ personal responsibilities and intended instructional practices
Download2016-01-01
Daniels, Lia M, Radil, Amanda, Wagner, Amanda K
During their education, pre-service teachers begin to assume professional responsibilities and gain pedagogical knowledge. However, the question remains if pre-service teachers intend to use instructional practices that are effective in meeting their assumed responsibilities. Thus, we examined...
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2019-07-15
Nicewicz, P., Sano, T., Hogan, James D.
The quasi-static compaction response of granular stainless steel 316 was studied under triaxial loading conditions using a confined crucible experiment apparatus, specifically looking at effects of the particle size (127 ± 34 μm, 309 ± 88 μm, 487 ± 98 μm)on mechanical behavior. The material...
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Consequences of mountain pine beetle outbreak on forest ecosystem services in western Canada
Download2016-01-01
Dhar, Amalesh, Parrott, Lael, Heckbert, Scott
After affecting millions of hectares of pine forests in western Canada , the mountain pine beetle (MPB; Dendroctonous ponderosae Hopkins) is spreading out of its native range and into Canada's boreal forest . Impacts of outbreaks can be environmental, economic, and social, and an ecosystem...
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Conservation Reserve Program is a key element for managing white-tailed deer populations at multiple spatial scales
Download2019-01-01
Mariana B. Nagy-Reis, Mark A. Lewis, William F. Jensen, Mark S. Boyce
Understanding the underlying mechanisms driving population demographics such as species-habitat relationships and the spatial scale in which these relationships occur is essential for developing optimal management strategies. Here we evaluated how landscape characteristics and winter severity...
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2016-01-01
Mojtaba Rahimi, Dave Chan, Alireza Nouri
This paper presents a constitutive model for describing the stress-strain response of sands under cyclic loading. The model, formulated using the critical state theory within the bounding surface plasticity framework, is an upgraded version of an existing model developed for monotonic behavior...
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2015-05-01
The present paper investigates the effects of word position, stress and vowel phonation on the duration of ejective fricatives in Upper Necaxa Totonac (UNT), a Totonacan language of northern Puebla, Mexico. Duration measurements were taken of frication and periods of silence occurring between...