Browsing Bradley Department of Electrical and Computer Engineering by Title
Now showing items 21-40 of 595
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Aperture synthesis of time-limited X waves and analysis of their propagation characteristics
(Acoustical Society of America, 1998-05-01)The feasibility of exciting a localized X-wave pulse from a finite aperture is addressed. Also, the possibility of using a finite-time excitation of a dynamic aperture to generate a finite-energy approximation to an X-wave ... -
Application of Cybernetics and Control Theory for a New Paradigm in Cybersecurity
(Virginia Tech, 2013-11-01)A significant limitation of current cyber security research and techniques is its reactive and applied nature. This leads to a continuous ‘cyber cycle’ of attackers scanning networks, developing exploits and attacking ... -
Application of Sapphire-Fiber-Bragg-Grating-Based Multi-Point Temperature Sensor in Boilers at a Commercial Power Plant
(MDPI, 2019-07-21)Readily available temperature sensing in boilers is necessary to improve efficiencies, minimize downtime, and reduce toxic emissions for a power plant. The current techniques are typically deployed as a single-point ... -
Applications and Security of Next-Generation, User-Centric Wireless Systems
(MDPI, 2010-07-28)Pervasive wireless systems have significantly improved end-users quality of life. As manufacturing costs decrease, communications bandwidth increases, and contextual information is made more readily available, the role of ... -
Applications of Different Weighting Schemes to Improve Pathway-Based Analysis
(Hindawi, 2011-05-22)Conventionally, pathway-based analysis assumes that genes in a pathway equally contribute to a biological function, thus assigning uniform weight to genes. However, this assumption has been proved incorrect, and applying ... -
Asymmetric independence modeling identifies novel gene-environment interactions
(Springer Nature, 2019-02-21)Most genetic or environmental factors work together in determining complex disease risk. Detecting gene-environment interactions may allow us to elucidate novel and targetable molecular mechanisms on how environmental ... -
The Atmospheric-Ionospheric-Magnetospheric Responses to the 2015 St. Patrick's Day Geomagnetic Storm at High Latitudes
(2016-12-15)The atmospheric-ionospheric-magnetospheric (AIM) system response to extreme solar wind conditions depends on the solar wind driving conditions, ionospheric configurations, and neutral atmospheric transportation. The 17 ... -
Autofocusing in optical scanning holography
(Optical Society of America, 2009-12-01)We present autofocusing in optical scanning holography (OSH) with experimental results. We first record the complex hologram of an object using OSH and then create the Fresnel zone plate (FZP) that codes the object constant ... -
Automated Functional Analysis of Astrocytes from Chronic Time-Lapse Calcium Imaging Data
(Frontiers, 2017-07-14)Recent discoveries that astrocytes exert proactive regulatory effects on neural information processing and that they are deeply involved in normal brain development and disease pathology have stimulated broad interest in ... -
Automated Mapping of Typical Cropland Strips in the North China Plain Using Small Unmanned Aircraft Systems (sUAS) Photogrammetry
(MDPI, 2019-10-10)Accurate mapping of agricultural fields is needed for many purposes, including irrigation decisions and cadastral management. This paper is concerned with the automated mapping of cropland strips that are common in the ... -
Autonomous Low-Power Magnetic Data Collection Platform To Enable Remote High Latitude Array Deployment
(AIP Publishing, 2009-04-01)A major driver in the advancement of geophysical sciences is improvement in the quality and resolution of data for use in scientific analysis, discovery, and for assimilation into or validation of empirical and physical ... -
Avoiding internal switching loss in soft switching cascode structure device
(United States Patent and Trademark Office, 2017-08-15)In a cascode switching device, avalanche breakdown of a control transistor and loss of soft switching or zero voltage switching in a high voltage normally-on depletion mode transistor having a negative switching threshold ... -
BACOM2.0 facilitates absolute normalization and quantification of somatic copy number alterations in heterogeneous tumor
(Springer Nature, 2015-09-09)Most published copy number datasets on solid tumors were obtained from specimens comprised of mixed cell populations, for which the varying tumor-stroma proportions are unknown or unreported. The inability to correct for ... -
BADGE: A novel Bayesian model for accurate abundance quantification and differential analysis of RNA-Seq data
(2014-09-10)Background Recent advances in RNA sequencing (RNA-Seq) technology have offered unprecedented scope and resolution for transcriptome analysis. However, precise quantification of mRNA abundance and identification of ... -
Balanced reconnection intervals: four case studies
(Copernicus Publications, 2008)During steady magnetospheric convection (SMC) events the magnetosphere is active, yet there are no data signatures of a large scale reconfiguration, such as a substorm. While this definition has been used for years it fails ... -
Band offset determination of mixed As/Sb type-II staggered gap heterostructure for n-channel tunnel field effect transistor application
(American Institute of Physics, 2013-01-14)The experimental study of the valence band offset (Delta E-v) of a mixed As/Sb type-II staggered gap GaAs0.35Sb0.65/In0.7Ga0.3As heterostructure used as source/channel junction of n-channel tunnel field effect transistor ... -
Basic Image-Processing Operations By Use Of Acousto-Optics
(Optical Society of America, 1997)We describe some basic optical image-processing operations with acousto-optic (AO) Bragg diffraction. Instead of using frequency-plane filters, we place an AO cell behind the abject. We then realize experimentally ... -
Beam Propagation in Focusing Media with Random Axis Misalignments: Second-Order And Higher-Order Moments
(AIP Publishing, 1978-12-01)A novel statistical technique which allows the asymptotic evaluation of second_ and higher_order averaged observables related to the stochastic complex parabolic equation is applied to the problem of beam propagation in a ... -
Behavior of Random Hole Optical Fibers under Gamma Ray Irradiation and Its Potential Use in Radiation Sensing Applications
(MDPI, 2007-05-24)Effects of radiation on sensing and data transmission components are of greatinterest in many applications including homeland security, nuclear power generation, andmilitary. A new type of microstructured optical fiber ...
