Results 231 to 240 of about 9,171 (262)

Animations of acoustical pulse (time-domain) signal propagation in a realistic waveguide to high frequencies.

The Journal of the Acoustical Society of America, 1996
Recent developments have made it possible to perform propagation calculations in realistic oceans to high frequencies. It is possible to deal with on the order of hundreds of modes rather quickly and by storing the frequency-domain field over some specified range over the water column and for a fine frequency mesh, it is possible by a new Fourier ...
Nataly A. Sidorovskaia, Michael F. Werby
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Time domain optical molecular imaging of small animals in vivo

SPIE Proceedings, 2006
The advent of optical molecular probes has taken optical imaging beyond approaches limited to intrinsic optical contrast mechanisms. Fluorophores are typically used as the source of contrast for optical molecular probes and the field of optical molecular imaging is concerned with measuring and quantifying their in vivo biodistribution and ...
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A time-domain non-contact fluorescence diffuse optical tomography scanner for small animal imaging

Biomedical Optics and 3-D Imaging, 2010
We introduce a novel time-domain multi-view (over 360°) non-contact fluorescence diffuse optical tomography scanner for localizing fluorescent dyes in scattering media, eventually in small animals. Localization results of fluorescent inclusions in 3D are presented.
Yves Bérubé-Lauzière, Eric Lapointe
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Using Time Domain Reflectometry for Evaluating Near-SurfaceSoil-Crop Dynamics of an Animal Waste Amended Soil

2004, Ottawa, Canada August 1 - 4, 2004, 2004
Electromagnetic induction (EMI) mapping techniques have been demonstrated to be useful in monitoring seasonal soil-crop dynamics. These dynamics can be affected by many confounding seasonal changes in the soil profile. Time domain reflectometry (TDR) has been used to measure localized bulk soil electrical conductivity of soil horizons. The objective
null Bryan L. Woodbury, null John A. Nienaber, null Roger A. Eigenberg   +2 more
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Facilitating the understanding of RF circuits through time-domain simulations and animations

2012 42nd European Microwave Conference, 2012
This paper explores new ways of introducing students to the fundamental concepts of RF and Microwave Engineering with the aid of simulation tools and animations. It highlights the importance of enabling students to ‘fiddle’ with their RF circuits, by means of an RF simulator, to gain a better understanding of the subject.
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Volumetric Doppler imaging of small animal brain using spectral and time domain optical coherence tomography

SPIE Proceedings, 2011
In this paper we demonstrate applicability of Optical Coherence Tomography (OCT) for three-dimensional analysis of blood flow in brain of small animals. We proposed scanning protocols that enable receiving both qualitative and quantitative information about flow.
Bukowska, Danuta, Grulkowski, Ireneusz, Wilczynski, Grzegorz, Tamborski, Szymon, Ruminski, Daniel, Wlodarczyk, Jakub, Szlag, Daniel, Szkulmowski, Maciej, Kowalczyk, Andrzej, Wojtkowski, Maciej, SAMPSON, DANUTA   +10 more
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The effect of time domain pose filtering on accuracy of small marker based motion correction in awake animal PET

2011 IEEE Nuclear Science Symposium Conference Record, 2011
Optical motion tracking based on stereo geometry is useful in medical imaging applications to provide input for downstream processing tasks such as motion compensation. For tracking markers containing closely spaced target points, pose measurements exhibit greater jitter than for markers with larger distributions of target points.
Andre Kyme, Julian Maclaren, Steven Meikle, Clive Baldock, Roger Fulton   +4 more
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A multi-view time-domain non-contact diffuse optical tomography scanner with dual wavelength detection for intrinsic and fluorescence small animal imaging

Review of Scientific Instruments, 2012
We present a non-contact diffuse optical tomography (DOT) scanner with multi-view detection (over 360°) for localizing fluorescent markers in scattering and absorbing media, in particular small animals. It relies on time-domain detection after short pulse laser excitation.
Eric, Lapointe, Julien, Pichette, Yves, Bérubé-Lauzière   +2 more
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Radio frequency continuous‐wave and time‐domain EPR imaging and Overhauser‐enhanced magnetic resonance imaging of small animals: instrumental developments and comparison of relative merits for functional imaging

NMR in Biomedicine, 2004
AbstractElectron paramagnetic resonance (EPR) imaging in the continuous wave (CW) and time‐domain modes, as well as Overhauser‐enhanced magnetic resonance imaging in vivo is described. The review is based mainly on the CW and time‐domain EPR instrumentation at 300 MHz developed in our laboratory, and the relative merits of these methods for functional ...
Sankaran, Subramanian, Ken-Ichiro, Matsumoto, James B, Mitchell, Murali C, Krishna   +3 more
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Application of time domain signal coding and artificial neural networks to passive acoustical identification of animals

Applied Acoustics, 2001
Abstract The development of a computer-based system capable of identifying animals automatically from sounds they generate is described. The system uses time domain signal coding techniques and artificial neural networks for discriminating between the sounds of different animal species within a group.
openaire   +1 more source