Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Duffe, P."'
Autor:
Nagel, Andrew M., Webster, Anne, Henry, Christopher, Storie, Christopher, Sanchez, Ignacio San-Miguel, Tsui, Olivier, Duffe, Jason, Dean, Andy
In Canada's northern regions, linear disturbances such as roads, seismic exploration lines, and pipelines pose a significant threat to the boreal woodland caribou population (Rangifer tarandus). To address the critical need for management of these di
Externí odkaz:
http://arxiv.org/abs/2409.12817
Autor:
Morgan Hrynyk, Amir Behnamian, Sarah Banks, Zhaohua Chen, Taylor Harmer, Patrick Kirby, Lori White, Jon Pasher, Jason Duffe
Publikováno v:
Drone Systems and Applications, Vol 12, Iss , Pp 1-13 (2024)
This study produced a high-accuracy remotely piloted aircraft system (RPAS) imagery classification method for identifying the invasive reed Phragmites australis (Cav.) Trin. Ex Steud subsp. australis using random forest (RF) machine learning. RPAS im
Externí odkaz:
https://doaj.org/article/b2f1e4ef4b87422991b2f2fc519891d1
Akademický článek
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Publikováno v:
Opuntia Brava, Vol 14, Iss 1, Pp 262-276 (2022)
La situación pedagógica actual ha impuesto la inserción de dispositivos digitales en las aulas y en todo el contexto universitario. Ello ha abierto nuevos caminos a la inserción tecnológica en las clases de lenguas extranjeras, acrecentado con l
Externí odkaz:
https://doaj.org/article/4831de78c1174b24bc02edeea0b12ac0
Publikováno v:
Canadian Journal of Remote Sensing, Vol 49, Iss 1 (2023)
Arctic amplification has many impacts on sea-ice extent, thickness, and flux. It becomes critical to monitor sea-ice conditions at finer spatio-temporal resolution. We used a simple convolutional neural network (CNN) on the RADARSAT-2 dual-polarized
Externí odkaz:
https://doaj.org/article/85d573f39c6942e7834ea5413f0d33f6
Akademický článek
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Autor:
Zhaohua Chen, Sarah Banks, Amir Behnamian, Lori White, Benoit Montpetit, Jon Pasher, Jason Duffe
Publikováno v:
Canadian Journal of Remote Sensing, Vol 46, Iss 6, Pp 765-783 (2020)
We investigated the potential of using Synthetic Aperture Radar (SAR) imagery from three different frequencies: X-, C-, and L-band, to characterize coastal wetlands in the Great Lakes. Three sets of SAR data acquired over the Bay of Quinte, Ontario,
Externí odkaz:
https://doaj.org/article/14103a67c0e74053800b760548bd40d7
Publikováno v:
Canadian Journal of Remote Sensing, Vol 46, Iss 3, Pp 376-385 (2020)
We compared traditional spatial filters and multi-temporal filters to remove speckle from synthetic aperture radar (SAR) data for mapping Phragmites australis. SAR constellations, with more rapid revisit capability, allow one to generate stacks of SA
Externí odkaz:
https://doaj.org/article/4cc81aeb07cb44448156cd0542f601c5
Autor:
Duffe, S., Uhrig, G. S.
Publikováno v:
Eur. Phys. J B 84, 475-490 (2011)
The hole-doped antiferromagnetic spin-1/2 two-leg ladder is an important model system for the high-$T_c$ superconductors based on cuprates. Using the technique of self-similar continuous unitary transformations we derive effective Hamiltonians for th
Externí odkaz:
http://arxiv.org/abs/1103.0162
Publikováno v:
EPL 96 (2011) 47001
Sufficiently dimerized quantum antiferromagnets display elementary S=1 excitations, triplon quasiparticles, protected by a gap at low energies. At higher energies, the triplons may decay into two or more triplons. A strong enough magnetic field induc
Externí odkaz:
http://arxiv.org/abs/1009.3375