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Digital Spectral Separation Methods And Systems For Bioluminescence Imaging
(Optical Society of America, 2008-01-01)
We propose a digital spectral separation (DSS) system and methods to extract spectral information optimally from a weak multispectral signal such as in the bioluminescent imaging (BLI) studies. This system utilizes our ...
On the influence of open magnetic flux on substorm intensity: Ground- and space-based observations
(American Geophysical Union, 2003-06-01)
Using the location of maximum region 1 current determined by the Active Magnetosphere and Planetary Electrodynamics Response Experiment as a proxy for the open/closed field line boundary, we monitor the evolution of the ...
Origin of magnetic and magnetoelastic tweedlike precursor modulations in ferroic materials
(American Physical Society, 2004-05-14)
Based on experimental observations of modulated magnetic patterns in a Co(0.5)Ni(0.205)Ga(0.295) alloy, we propose a model to describe a ( purely) magnetic tweed and a magnetoelastic tweed. The former arises above the Curie ...
Domain-Specific Design of 3D Interaction Techniques: An Approach for Designing Useful Virtual Environment Applications
(MIT Press, 2009-10-01)
Few production virtual environment (VE) applications involve complex three-dimensional (3D) interaction. Our long-term collaboration with architects and engineers in designing 3D user interfaces (3D UIs) has revealed some ...
Non-linear, adaptive array processing for acoustic interference suppression
(Acoustical Society of America, 2009-06-01)
A method is introduced where blind source separation of acoustical sources is combined with spatial processing to remove non-Gaussian, broadband interferers from space-time displays such as bearing track recorder displays. ...
Influence of dc-bias on phase stability in Mn-doped Na0.5Bi0.5TiO3-5.6 at. %BaTiO3 single crystals
(AIP Publishing, 2009-10-01)
Mn-doped Na0.5Bi0.5TiO3-5.6 at. %BaTiO3 (Mn:NBT-5.6% BT) single crystals were grown by a top-seeded solution growth method. Tetragonal and rhombohedral phases were found to coexist in the as-grown condition. The dielectric ...
Fiber Fabry-Perot Sensors For Detection Of Partial Discharges in Power Transformers
(Optical Society of America, 2003-01-01)
A diaphragm-based interferometric fiber optic sensor that uses a low-coherence light source was designed and tested for on-line detection of the acoustic waves generated by partial discharges inside high-voltage power ...
Note: Method for overcoming ductile failure in Munstedt-type extensional rheometers
(AIP Publishing, 2009-05-01)
The purpose of this note is to introduce an experimental technique to overcome ductile failure in uniaxial extensional flow and show a simple illustration of its effectiveness. Ductile failure prevents the rheological ...
X-ray and neutron diffraction investigations of the structural phase transformation sequence under electric field in 0.7Pb(Mg1/3Nb2/3)-0.3PbTiO(3) crystal
(American Institute of Physics, 2004-08-01)
The structural phase transformations of 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) (PMN-30%PT) have been studied using x-ray diffraction (XRD) and neutron scattering as a function of temperature and electric field. We observe the ...
Memory Switches in Chemical Reaction Space
(Public Library of Science, 2008-07-18)
Just as complex electronic circuits are built from simple Boolean gates, diverse biological functions, including signal transduction, differentiation, and stress response, frequently use biochemical switches as a functional ...