Filters: Department: "Electrical & Computer Engineering" Collection: "ir_uspace" School Or College: "College of Engineering"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 401 |
 |
Stringfellow, Gerald B.; Inglefield, Colin E.; Taylor, P. Craig | Quantum wells due to ordering in GaInP | CuPt ordering results in a reduction of the band-gap energy of GaInP. Thus, heterostructures and quantum wells can be produced by simply varying the order parameter, without changing the solid composition. Changes in the order parameter can be induced by changes in growth conditions. The disorder... | Band-gap energy; Growth temperature; Quantum wells | 1998-12-28 |
| 402 |
 |
Mathews, V. John | Techniques for bilinear time series analysis | This paper reviews the general problem of nonlinear time series analysis. The special case of bilinear time series analysis is discussed in detail. The stability of the estimated nonlinear system models is of particular importance. We discuss a simple sufficient condition for the stability of s... | 1993 | |
| 403 |
 |
Furse, Cynthia M.; Gandhi, Om P. | Simple convolution procedure for calculating currents induced in the human body for exposure to electromagnetic pulses | The finite-difference time-domain (FDTD) and frequency dependent finite difference time-domain (FD)2TD methods have been previously used to calculate internal electric (E) fields and induced currents for exposure of the anatomically based model of the human body to electromagnetic pulses (EMPs) and... | Frequency dependent finite difference time-domain; Finite-difference time-domain; FDTD; Electric fields; Induced current; Electromagnetic pulses; Continuous wave sinusoids | 1994-07 |
| 404 |
 |
Khan, Faisal Habib | Hybrid electric vehicle power management solutions based on isolated and nonisolated configurations of multilevel modular capacitor-clamped converter | Abstract-This paper presents the various configurations of a multilevel modular capacitor-clamped converter (MMCCC), and it reveals many useful and new formations of the original MMCCC for transferring power in either an isolated or nonisolated manner. The various features of the original MMCCC circ... | 2009 | |
| 405 |
 |
Mathews, V. John | Improved convergence analysis of stochastic gradient adaptive filters using the sign algorithm | Abstract-Convergence analysis of stochastic gradient adaptive filters using the sign algorithm is presented in this paper. The methods of analysis currently available in literature assume that the input signals to the filter are white. This restriction is removed for Gaussian signals in our analysis... | 1987 | |
| 406 |
 |
Harrison, Reid R. | HermesC: RF wireless low-power neural recording for freely behaving primates | Neural prosthetics for motor systems is a rapidly growing field with the potential to provide treatment for amputees or patients suffering from neurological injury and disease. To determine whether a physically active patient such as an amputee can take advantage of these systems, we seek to devel... | HermesC; RF wireless; Low-power; Neural recording; Neural prosthetics; Integrated Neural Interface; Macaques | 2008-05 |
| 407 |
 |
Stevens, Kenneth | Concurrency reduction of untimed latch protocols - theory and practice | A systematic investigation into concurrency reduction of untimed asynchronous 4-phase latch controllers is reported. Starting with a state graph that exhibits maximal concurrency, rules are provided for systematically reducing its states and thereby curtailing its behaviors. The rules predict liven... | 2010 | |
| 408 |
 |
Mathews, V. John | Blind identification of bilinear systems | Abstract This paper is concerned with the blind identification of bilinear systems excited by higher-order white noise. Unlike prior work that restricted the bilinear system model to simple forms and required the excitation to be Gaussian distributed, the results of this paper are applicable to a m... | 2001 | |
| 409 |
 |
Furse, Cynthia M.; Gandhi, Om P. | Why the DFT is faster than the FFT for FDTD time-to-frequency domain conversions | Although it is a time-domain method, the finite difference time-domain (FDTD) method has been used extensively for calculating frequency domain parameters such as specific absorption rate, radar cross-section, and S-parameters. When a broad frequency band is of interest, using a broad-band pulsed ... | Discrete Fourier transform; DFT; Fast Fourier transform; FFT; Finite-difference time-domain; FDTD; Frequency domain parameters | 1995-10 |
| 410 |
 |
Myers, Chris J. | Automatic abstraction for synthesis and verification of deterministic timed systems | This paper presents a new approach for synthesis and verification of asynchronous circuits by using abstraction. It attacks the state explosion problem by avoiding the generation of a flat state space for the whole design. Instead, it breaks the design into sub-blocks and conducts synthesis and veri... | 2000 | |
| 411 |
 |
Furse, Cynthia M. | Recovering handset MIMO capacity with polarization-agile antennas | Multiple Input Multiple Output (MIMO) communication systems rely on significant variation between multiple signal paths to create independent channels for communication. Transceiver signal strength to or from a portable handset is subject to large variations due to the "essentially random orientatio... | 2007-06 | |
| 412 |
 |
Tasdizen, Tolga; Jones, Bryan W.; Whitaker, Ross T.; Marc, Robert E. | Ultrastructural mapping of neural circuitry: a computational framework | Complete mapping of neuronal networks requires data acquisition at synaptic resolution with canonical coverage of tissues and robust neuronal classification. Transmission electron microscopy (TEM) remains the optimal tool for network mapping. However, capturing high resolution, large, serial sectio... | 2009 | |
| 413 |
 |
Khan, Faisal Habib | Commercial and industrial applications getting ready for direct-current power distribution | This paper describes design trends in several classes of power-electronic appliances that will increase the appeal for distributing dc power in buildings. In the commercial sector information technology (IT) power conversion architectures are moving from multi- to single-voltage supplies, initially... | Direct current power distribution; Commercial applications | 2004-01-01 |
| 414 |
 |
Furse, Cynthia M. | Antenna optimization for vehicular environments | Abstract? This paper presents a multi-antenna optimization for communication in a Rockwell T-39 Sabreliner, a mid-size aircraft with a metallic body. The aircraft channel at 2.45 GHz is modeled using site specific 3D ray-tracing software. Added effects from system details including the antenna radi... | 2011 | |
| 415 |
 |
Stevens, Kenneth | Designing parallel specifications in CCS | We describe a style of specifying concurrent systems based upon the parallel composition operatorof CCS and apply it to several asynchronous hardware examples. | 1993 | |
| 416 |
 |
Harrison, Reid R. | Designing efficient inductive power links for implantable devices | Due to limited battery life and size limitations, many implantable biomedical devices must be powered inductively. Because of weak coupling between implanted and external coils, obtaining high power efficiency is a challenge. Previous authors have addressed the issue of optimizing power efficiency ... | Inductive power links; Planar spiral coils | 2007-01-01 |
| 417 |
 |
Stevens, Kenneth | Relative timing based verification of timed circuits and systems | Aggressive timed circuits, including synchronous and asynchronous self-resetting circuits, are particularly challenging to design and verify due to complicated timing constraints that must hold to ensure correct operation. Identifying a small, sufficient, and easily verifiable set of relative timin... | 2002 | |
| 418 |
 |
Furse, Cynthia M. | A study on the efficiency of transparent patch antennas designed from conductive oxide films | Abstract? A study on the efficiency of transparent patch antennas designed from indium tin oxide (ITO) films is presented to provide design guidelines for patch type transparent antennas. The trade-offs between optical transparency and antenna efficiency is analyzed by considering typical materia... | 2011 | |
| 419 |
 |
Tasdizen, Tolga | Using sequential context for image analysis | This paper proposes the sequential context inference (SCI) algorithm for Markov random field (MRF) image analysis. This algorithm is designed primarily for fast inference on an MRF model, but its application requires also a specific modeling architecture. The architecture is composed of a sequence ... | 2010 | |
| 420 |
 |
Harrison, Reid R.; Furse, Cynthia M. | Recent advances in biomedical telemetry | Communication systems for implantable medical devices are rapidly advancing. Cardiac, optical, neurological and auditory devices all utilize this technology. Miniaturized antennas and inductive coupling systems provide the radio interface between air and the implantable device. Miniaturized electro... | Wireless telemetry; Transeiver architectures; Inductive coupling; Coils | 2007-09 |
| 421 |
 |
Harrison, Reid R. | Revolution will be prosthetized | It's October at Duke University, in Durham, N.C., and Jonathan Kuniholm is playing "air guitar hero," a variation on Guitar Hero, the Nintendo Wii game that lets you try to keep up with real musicians using a vaguely guitarlike controller. But the engineer is playing without a guitar. More to the p... | 2009 | |
| 422 |
 |
Stevens, Kenneth | Lazy transition systems and asynchronous circuit synthesis with relative timing assumptions | This paper presents a design flow for timed asynchronous circuits. It introduces lazy transitions systems as a new computational model to represent the timing information required for synthesis. The notion of laziness explicitly distinguishes between the enabling and the firing of an event in a tr... | 2002 | |
| 423 |
 |
Stringfellow, Gerald B.; Shurtleff, James Kevin | Use of surfactant Sb to induce triple period ordering in GaInP | A surfactant is used to induce an ordered structure in an epitaxial layer. The addition of small amounts of triethylantimony during the organometallic vapor phase epitaxy growth of GaInP on 001 GaAs substrates is shown to remove CuPt ordering with a resultant increase in band gap energy. Increasi... | Organometallic; Thermodynamics; Surfactant | 2000-03-13 |
| 424 |
 |
Stevens, Kenneth | Energy and performance models for synchronous and asynchronous communication | Communication costs, which have the potential to throttle design performance as scaling continues, are mathematically modeled and compared for various pipeline methodologies. First-order models are created for common pipeline protocols, including clocked flopped, clocked time-borrowing latch, async... | 2010 | |
| 425 |
 |
Furse, Cynthia M.; Bergerson, Amy A. | Work in progress - Utahs engineering initiative | Abstract - In response to a shortage of engineers in Utah an interdisciplinary team at the University of Utah developed an outreach program intended to increase the number of students recruited into the College of Engineering and who complete engineering degrees. An innovative mix of service l... | 2008 |