18 research outputs found
A theoretical comparison of spontaneous Raman and Brillouin based fibre optic distributed temperature sensors
No full textPresent day commercially available fibre optic distributed temperature sensors exploit the temperature dependence of spontaneous Raman scattering. Spontaneous Brillouin scattering is also temperature dependent and provides a signal which is an order of magnitude greater. Advances in narrow bandwidth pulsed laser technology and low loss all fibre filters allow the Brillouin signal to be separated from the Rayleigh signal. Theoretical analysis now demonstrates that distributed temperature sensing based on Brillouin scattering offers considerably increased range beyond the theoretical limit of the spontaneous Raman based sensor
Computer simulations of homeward-migrating Fraser River sockeye salmon: is compass orientation a sufficient direction-finding mechanism in the north-east Pacific Ocean?
No full textMarine and freshwater climatic factors affecting interannual variation in the timing of return migration to fresh water of sockeye salmon (Oncorhynchus nerka)
No full textSite fidelity of spawning sockeye salmon (Oncorhynchus nerka W.) in the presence and absence of olfactory cues
No full textCovariation between the average lengths of mature coho (Oncorhynchus kisutch) and Chinook salmon (O. tshawytscha) and the ocean environment
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Rediscovering Quetelet, Again: The “Aging” Offender and the Prediction of Reoffending in a Sample of Adult Sex Offenders
No full textSeasonal and comparative aspects of chemical stratification in some tropical crater lakes, Ethiopia
No full textStock-Specific Movement and Distribution of Juvenile Chinook Salmon, Oncorhynchus tshawytscha, in Sandy Beach Surf Zones of Oregon and Washington, USA
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