Zobrazeno 1 - 10
of 57
pro vyhledávání: '"David Duchesne"'
Autor:
David, Duchesne, Marcello, Ferrera, Luca, Razzari, Roberto, Morandotti, Brent, Little, T., Chu, Sai, J., Moss, David
Publikováno v:
Cognitive Radio Systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::953f338be48393884f8a2f043fd981bc
http://www.intechopen.com/articles/show/title/adaptive-subband-selection-in-ofdm-basedcognitive-radios
http://www.intechopen.com/articles/show/title/adaptive-subband-selection-in-ofdm-basedcognitive-radios
Autor:
Frédéric Bilodeau, Deborah J. Wilson, Gilles Gauthier, Donald G. Reid, David Duchesne, Charles J. Krebs, Alice J. Kenney, Scott Gilbert
Publikováno v:
Journal of Mammalogy. 93:87-92
Lemmings construct nests of grass and moss under the snow during winter, and counting these nests in spring is 1 method of obtaining an index of winter density and habitat use. We counted winter nests after snow melt on fixed grids on 5 areas scatter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb6897bfc7736b22baa4571054fa6cb2
https://doi.org/10.1644/11-mamm-a-137.1
https://doi.org/10.1644/11-mamm-a-137.1
Publikováno v:
Oecologia. 167:967-980
Snow cover has dramatic effects on the structure and functioning of Arctic ecosystems in winter. In the tundra, the subnivean space is the primary habitat of wintering small mammals and may be critical for their survival and reproduction. We have inv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2de32bbe27f38ac8dda6b309d534f0f6
https://doi.org/10.1007/s00442-011-2045-6
https://doi.org/10.1007/s00442-011-2045-6
Publikováno v:
Journal of Mammalogy. 92:511-516
Winter breeding under the snow is a critical ecological adaptation of lemmings and a key demographic process in their periodic multiannual fluctuations in abundance. However, logistic constraints limit our ability to quantify lemming winter reproduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b88eb9ae69f72c3cc9cbbacbe636920
https://doi.org/10.1644/10-mamm-a-279.1
https://doi.org/10.1644/10-mamm-a-279.1
Autor:
Marcello Ferrera, Sai T. Chu, David J. Moss, David Duchesne, Roberto Morandotti, Luca Razzari, Brent E. Little
Publikováno v:
Nature Photonics. 4:41-45
Integrated multiple-wavelength laser sources, critical for important applications such as high-precision broadband sensing and spectroscopy1, molecular fingerprinting2, optical clocks3 and attosecond physics4, have recently been demonstrated in silic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0111c3cf0b059f17a3359fbccbf030b5
https://doi.org/10.1038/nphoton.2009.236
https://doi.org/10.1038/nphoton.2009.236
Autor:
Zhenyu Yang, Luca Razzari, Brent E. Little, Marcello Ferrera, Marco Liscidini, David J. Moss, David Duchesne, John E. Sipe, Sai T. Chu, Roberto Morandotti
Publikováno v:
Nature Photonics. 2:737-740
Photonic integrated circuits are a key component1 of future telecommunication networks, where demands for greater bandwidth, network flexibility, and low energy consumption and cost must all be met. The quest for all-optical components has naturally
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::662626ce1943ab8d9a34706cf013c903
https://doi.org/10.1038/nphoton.2008.228
https://doi.org/10.1038/nphoton.2008.228
Publikováno v:
CLEO: 2015.
Parabolic pulses with durations ranging from the picosecond to the sub-nanosecond range (100-ps reported here) were generated through frequency-to-time mapping. A virtual timelens was applied in the spectral shaping stage in order to relax the constr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83b1ff39b02c984737641191137a2c6c
https://doi.org/10.1364/cleo_si.2015.sm2p.6
https://doi.org/10.1364/cleo_si.2015.sm2p.6
Autor:
Daniele Modotto, D. N. Christodoulides, François Légaré, Andrea Locatelli, Richard Arès, Gregory J. Salamo, David Duchesne, Vincent Aimez, Katarzyna A. Rutkowska, C. De Angelis, Roberto Morandotti, Sebastien Delprat, Marc Sorel, Mohamed Chaker, Maite Volatier
Publikováno v:
Optics express. 19(13)
We report modal phase matched (MPM) second harmonic generation (SHG) in high-index contrast AlGaAs sub-micron ridge waveguides, by way of sub-mW continuous wave powers at telecommunication wavelengths. We achieve an experimental normalized conversion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a302120ca566234c136465f6921c3e62
https://pubmed.ncbi.nlm.nih.gov/21716479
https://pubmed.ncbi.nlm.nih.gov/21716479
Autor:
Elizabeth J. Hofer, B. Scott Gilbert, Frédéric Bilodeau, Gilles Gauthier, Charles J. Krebs, Alice J. Kenney, Maria C.-Y. Leung, David Duchesne, Donald G. Reid
Publikováno v:
Oecologia. 168(4)
The insulative value of early and deep winter snow is thought to enhance winter reproduction and survival by arctic lemmings (Lemmus and Dicrostonyx spp). This leads to the general hypothesis that landscapes with persistently low lemming population d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c64bc735a3bdf54085c53eaca54cce0
https://pubmed.ncbi.nlm.nih.gov/22042523
https://pubmed.ncbi.nlm.nih.gov/22042523
Autor:
Alessia Pasquazi, David Duchesne, Dave J. Moss, Roberto Morandotti, Sai T. Chu, Luca Razzari, Marco Peccianti, Marcello Ferrera, Brent E. Little
Publikováno v:
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC).
All-optical signal processing has been demonstrated extensively in Si including demultiplexing at 160Gb/s via four-wave mixing (FWM) [1] and optical regeneration [2], as well as in chalcogenide glass (ChG) waveguides[3]. The efficiency of all-optical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28ae1ab6771b29fc0089ba817742e1cd
https://doi.org/10.1109/cleoe.2011.5942691
https://doi.org/10.1109/cleoe.2011.5942691