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Skip to Search Results- 4Rankin, Robert
- 2Nokes, Charles D. A.
- 1Aftergood, Olivia SR
- 1Blake, J. Bernard
- 1Blouin, Karen D
- 1Brown, Daniel M.
- 6Graduate and Postdoctoral Studies (GPS), Faculty of
- 6Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 5Physics, Department of
- 4Physics, Department of/Journal Articles (Physics)
- 1Renewable Resources, Department of
- 1Renewable Resources, Department of/Journal Articles (Renewable Resources)
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Charged particle behavior in the growth and damping stages of ultralow frequency waves: Theory and Van Allen Probes observations
Download2016
Wygant, John R., Zong, Qui-Gang, Kletzing, Craig A., Blake, J. Bernard, Kivelson, Margaret G., Zhou, Xuzhi, Chen, Xing-Ran, Rankin, Robert, Wang, Zi-Han
Ultralow frequency (ULF) electromagnetic waves in Earth's magnetosphere can accelerate charged particles via a process called drift resonance. In the conventional drift resonance theory, a default assumption is that the wave growth rate is time independent, positive, and extremely small. However,...
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Development of an Experimental Apparatus for Studying the Effects of Acoustic Excitation on Viscosity
DownloadFall 2012
An experimental apparatus was developed capable of measuring changes in fluid viscosity occurring due to acoustic stimulation. Controls allowed measurements at simulated oil sand reservoir pressures and temperatures with near real-time data visualization. Calibration was performed...
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Fall 2013
Ultrasonic guided waves have been exploited to study long bones using the axial transmission technique. The application of phased array (PA) technology to bone study is uncommon and the conventional technique involves the employment of a pair of angled beam transducers, which is laborious....
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Identifying and analyzing spatial and temporal patterns of lightning-ignited wildfires in Western Canada from 1981-2018.
DownloadSpring 2021
This study looked at the spatial and temporal patterns of lightning-ignited wildfires in Western Canada from 1981 to 2018. Studying patterns of lightning fires over space and time can provide great insight into understanding, highlighting, and quantifying these sequences. This is of great...
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Kelvin‐Helmholtz unstable magnetotail flow channels: Deceleration and radiation of MHD waves
Download2014
Turkakin, Hava, Rankin, Robert, Mann, Ian R.
The Kelvin-Helmholtz instability (KHI) of magnetotail flow channels associated with bursty bulk flows (BBFs) is investigated. MHD oscillations of the channel in both kink and sausage modes are investigated for KHI, and both the primary and secondary KHIs are found that drive MHD waves. These...
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2006
Kochtubajda, B., Nguyen, T.V., Stewart, R.E., Logan, K.A., Gyakum, J.R., Flannigan, M.D.
Lightning and fire characteristics within the Northwest Territories (NWT) jurisdiction of the Mackenzie Basin between 1994 and 1999 are examined using data from the lightning detection network operating in the NWT and from the national Large Fire Database maintained by the Canadian Forest...
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Spring 2019
The ionospheric Alfvén resonator (IAR) is an area of space that, due to sharp Alfvén speed gradients, has the ability to trap electromagnetic plasma wave energy, where it bounces in the Alfvén mode between near-Earth space and the lower ionosphere. Here we present research that, by comparing...
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Spring 2014
Lightning is widely acknowledged as a major cause of wildland fires in Canada. On average, 250,000 cloud-to-ground lightning strikes occur in Alberta every year. Lightning-caused wildland fires in remote areas have considerably larger suppression costs and a much greater chance of escaping...
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MATLAB functions for Lightning Excitation of the Ionospheric Alfvén Resonator by Charles Nokes
MATLAB functions for Lightning Excitation of the Ionospheric Alfvén Resonator by Charles Nokes
Download2019-01-01
Code for the analysis in the thesis titled "Lightning Excitation of the Ionospheric Alfvén Resonator" by Charles Nokes was written in Matlab. 26 Matlab functions were created in all. lightningandiar.m is the function in which all the main input parameters are set. It then calls the next...
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2010
Kabin, Konstantin, Rankin, Robert, Fenrich, Frances R., Rae, I. Johnathan., Degeling, Alex W.
This paper presents the results of a linear model for global scale magneto-hydrodynamic (MHD) waves in a compressed dipole model magnetosphere. We examine scenarios where a localized monochromatic source along the magnetopause boundary launches MHD fast mode ultralow frequency (ULF) waves into...