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1 Harrison, Reid R.CMOS imager with on-chip temporal filtering for motion pre-processingRobust motion detection algorithms such as the motion energy model require temporal filtering at the pixel level. We have designed and tested a CMOS imager with integrated, pixel-level temporal filtering necessary for motion detection. This temporal filtering enhances transients and provides a ...2002-01-01
2 Myers, Chris J.Timed state space exploration using POSETsAbstract-This paper presents a new timing analysis algorithm for efficient state space exploration during the synthesis of timed circuits or the verification of timed systems. The source of the computational complexity in the synthesis or verification of a timed system is in finding the reachable ti...2000
3 Mathews, V. JohnAdaptive lattice bilinear filtersAbstract-This paper presents two fast least squares lattice algorithms for adaptive nonlinear filters equipped with bilinear system models. Bilinear models are attractive for adaptive filtering applications because they can approximate a large class of nonlinear systems adequately, and usually with...1993
4 Stringfellow, Gerald B.; Shurtleff, James KevinHeterostructures in GaInP grown using a change in Te dopingIn organometallic vapor phase epitaxy, changes in growth conditions can be used to modulate the extent of CuPt ordering and, hence, the band gap energy of GaInP. One method is to add Te during growth. An increase in the band gap energy of 0.1 eV due to a decrease in ordering has been obtained by ...Heterostructures; Alloys2000
5 Harrison, Reid R.; Rieth, Loren W.; Tathireddy, Prashant; Solzbacher, FlorianLong term in vitro stability of fully integrated wireless neural interfaces based on Utah slant electrode arrayWe herein report in vitro functional stability and recording longevity of a fully integrated wireless neural interface (INI). The INI uses biocompatible Parylene-C as an encapsulation layer, and was immersed in phosphate buffered saline (PBS) for a period of over 150 days. The full functionality ...2010
6 Myers, Chris J.Design of a genetic muller C-elementSynthetic biology uses engineering principles to design circuits out of genetic materials that are inserted into bacteria to perform various tasks. While synthetic combinational Boolean logic gates have been constructed, there are many open issues in the design of sequential logic gates. One such g...2007
7 Rieth, Loren W; Solzbacher, FlorianHigh speed wafer scale bulge testing for the determination of thin film mechanical propertiesA wafer scale bulge testing system has been constructed to study the mechanical properties of thin films and microstructures. The custom built test stage was coupled with a pressure regulation system and optical profilometer which gives high accuracy three-dimensional topographic images collected on...2010
8 Furse, Cynthia M.Capacitance and inductance sensor circuits for detecting the lengths of open- and short-circuited wiresThe length of an open- or short-circuited wire is linearly proportional to the capacitance or inductance of the wire, respectively. Several types of simple and inexpensive circuits are introduced to measure these values. Open-circuited (capacitance) measurements are very effective. Short-circuited ...Aging aircraft wire; Capacitance sensors; Fault detection; Inductance sensors2009-08
9 Stringfellow, Gerald B.; Shurtleff, James KevinBi surfactant effects on ordering in GaInP grown by organometallic vapor-phase epitaxyThe effect of the isoelectronic surfactant Bi on surface structure and ordering has been studied for GaInP semiconductor alloys grown by organometallic vapor-phase epitaxy. A small amount of Bi trimethylbismuth added during growth is found to result in disordering for layers grown using conditions t...Surfactant; Semiconductors; Trimethylbismuth2000
10 Mastrangelo, Carlos H.; Young, Darrin J.Personal navigation via high-resolution gait-corrected inertial measurement unitsAbstract-In this paper, a personal micronavigation system that uses high-resolution gait-corrected inertial measurement units is presented. The goal of this paper is to develop a navigation system that uses secondary inertial variables, such as velocity, to enable long-term precise navigation in th...2010
11 Harrison, Reid R.Local field potential measurement with low-power analog integrated circuitLocal field potentials (LFPs) in the brain are an important source of information for basic research and clinical (i.e., neuroprosthetic) applications. The energy contained in certain bands of LFPs in the 10-100 Hz range has been shown to correlate with specific arm movement parameters in nonhuman ...Local field potentials; Neural recording; Low-power circuit design; Neural prosthesis; VLSI2004-01-01
12 Furse, Cynthia M.Impedance of a short dipole antenna in a magnetized plasma via a finite difference time domain modelThe traditional analytical analysis of plasma probes requires the use of quasi-static approximations, while numerical methods require the use of an equivalent dispersive media, both producing a nontrivial analysis of the plasma environment. On the other hand, a few techniques that combine the plasm...Antenna theory; finite-difference time-domain; FDTD; Plasma covered antennas; Plasma measurements2005-08
13 Tasdizen, Tolga; Whitaker, Ross T.Higher-order nonlinear priors for surface reconstructionAbstract-For surface reconstruction problems with noisy and incomplete range data, a Bayesian estimation approach can improve the overall quality of the surfaces. The Bayesian approach to surface estimation relies on a likelihood term, which ties the surface estimate to the input data, and the prior...2004
14 Stringfellow, Gerald B.Electrical properties of nitrogen doped GaPThe electrical properties namely, electron concentration and mobility, have been investigated in the temperature range from 53 to 400 K for undoped and nitrogen-doped VPE GaP.Electron concentration; Ionization energy; Electron mobility1975
15 Myers, Chris J.Timed event/level structuresThis paper presents timed event/level(TEL) structures, an extension to timed event-rule structures, which allows the general use of signal levels and timing in the specification of an asynchronous circuit. TEL structures can express true OR causality, as well as language constructs that are very dif...1997
16 Furse, Cynthia M.; Gandhi, Om P.State of the science regarding RF dosimetry, measurement and certificationCellular telephones and wireless personal communication systems (PCS) are being introduced into society at a very rapid rate. Whereas the present-day cellular telephones in the United States operate at midband transmission frequencies of about 835 MHz (about 900 MHz in Europe), higher frequencies o...RF dosimetry; Cell phone safety1996
17 Normann, Richard A.; Campbell, Patrick K.; Jones, Kelly E.; Huber, Robert J.; Horch, Kenneth W.Silicon-based, three-dimensional neural interface: manufacturing processes for an intracortical electrode arrayA method has been developed for the manufacture of a "three-dimensional" electrode array geometry for chronic intracortical stimulation. This silicon based array consists of a 4.2 x 4.2 x 0.12 mm thick monocrystalline substrate, from which project 100 conductive, silicon needles sharpened to facilit...Electric Stimulation; Electrodes, Implanted; Sensory Cortex; Intracortical Electrode Array1991
18 Stringfellow, Gerald B.Miscibility gaps and spinodal decomposition in III/V quaternary alloys of the type AxByC1−x−yDThermodynamic concepts have been developed for the calculation of solid-phase miscibility gaps and spinodal decomposition in quaternary alloys of the type AxByC1−x−yD. These concepts have been applied to the analysis of III/V quaternary alloys using the delta-lattice-parameter (DLP) solution mod...Thermodynamics; Quartenary alloys; Coherent decomposition1983-01
19 Mathews, V. JohnNeural decoding using a nonlinear generative model for brain-computer interfaceKalman filters have been used to decode neural signals and estimate hand kinematics in many studies. However, most prior work assumes a linear system model, an assumption that is almost certainly violated by neural systems. In this paper, we show that adding nonlinearities to the decoding algorithm ...2014-01-01
20 Khan, Faisal HabibOn the design of efficient magnetic coils for the stimulation of peripheral nervesNeural stimulators are the key building blocks of current neuroprosthetic systems, such as cochlear and retinal implants. Due to direct current injections and foreign body reactions, conventional current passing electrodes suffer from reduced performance and reduced lifetimes. However, magnetic fiel...2013-01-01
21 Khan, Faisal HabibPV faults: Overview, modeling, prevention and detection techniquesRecent PV faults and subsequent fire-hazards on April 5, 2009, in Bakersfield, California, and April 16, 2011, in Mount Holly, North Carolina provide evidence of a lack of knowledge among PV system manufacturers and installers about different PV faults. The conducted survey within the scope of this ...2013-01-01
22 Khan, Faisal HabibPV ground-fault detection using spread spectrum time domain reflectometry (SSTDR)A PV ground-fault detection technique using spread spectrum time domain reflectometry (SSTDR) method has been introduced in this paper. SSTDR is a reflectometry method that has been commercially used for detecting aircraft wire faults. Unlike other fault detection schemes for a PV system, ground fau...2013-01-01
23 Khan, Faisal HabibReliability analysis and performance degradation of a boost converterIn general, power converters are operated in closed-loop systems, and any characteristic variations in one component will simultaneously alter the operating point of other components, resulting in a shift in overall reliability profile. This interdependence makes the reliability of a converter a com...2014-01-01
24 Tasdizen, TolgaSerial section registration of axonal confocal microscopy datasets for long-range neural circuit reconstructionIn the context of long-range digital neural circuit reconstruction, this paper investigates an approach for registering axons across histological serial sections. Tracing distinctly labeled axons over large distances allows neuroscientists to study very explicit relationships between the brain's com...2012-01-01
25 Stringfellow, Gerald B.Simulation of self-assembled compositional core-shell structures in In xGa 1-xN nanowiresWe report the simulation of compositional core-shell structure formation in epitaxial InGaN nanowires (NWs) and its dependence on kinetic growth mode and epitaxial relation to substrate, based on atomistic-strain-model Monte Carlo simulations. On a lattice mismatched substrate, the layer-by-layer gr...2012-01-01
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