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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Mathews, V. John | A stable adaptive Hammerstein filter employing partial orthogonalization of the input signals | Abstract-This paper presents an algorithm that adapts the parameters of a Hammerstein system model. Hammerstein systems are nonlinear systems that contain a static nonlinearity cascaded with a linear system. In this paper, the static nonlinearity is modeled using a polynomial system, and the linear ... | 2006 | |
| 2 |
 | Stevens, Kenneth | Algorithms for MIS vector generation and pruning | Ignoring the effect of simultaneous switching for logic gates causes silicon failures for high performance microprocessor designs. The main reason to omit this effect is the run time penalty and potential over-conservatism. Run times are directly proportional to the vector sizes. Efficient algorithm... | 2006 | |
| 3 |
 | Furse, Cynthia M.; Cotter, Neil E. | Challenges in curriculum adaptation across institutions of higher education: international and national student transfer | The challenges associated with student transfer between institutions of higher education are investigated. The Utah System of Higher Education (USHE) requires that undergraduate courses from non-ABET accredited institutions are recognized across public universities and colleges in Utah Based on empi... | 2006 | |
| 4 |
 | Mathews, V. John | Design of low-delay nonuniform pseudo QMF banks | ABSTRACT This paper presents a method for designing low-delay nonuniform pseudo QMF banks. The method is motivated by the work of Li, Nguyen and Tantaratana, in which the nonuniform filter bank is realized by combining an appropriate number of adjacent subbands of a uniform pseudo QMF filter ban... | 2006 | |
| 5 |
 | Stringfellow, Gerald B. | Effects of surfactants Sb and Bi on the incorporation of zinc and carbon in III/V materials grown by organometallic vapor-phase epitaxy | The incorporation of both dopants and background impurities during the organometallic vapor phase epitaxial _x0002_OMVPE_x0003_ growth of GaAs, GaInP, and GaP has been significantly altered by the use of the surfactants Sb and Bi. Sb and Bi are isoelectronic with the group V host elements, and so ... | Physical and chemical processes; Surfactants isoelectronic; Electrochemical C-V profilometry | 2006 |
| 6 |
 | Mathews, V. John | Howling suppression in hearing aids using least-squares estimation and perceptually motivated gain control | ABSTRACT Howling is a significant problem even in digital hearing aids equipped with adaptive feedback cancellation. Among the many causes of howling is the inability of the adaptive filter to track rapid changes in the feedback path. Many systems use howling detectors to detect the start of howlin... | 2006 | |
| 7 |
 | Myers, Chris J. | ILP-based scheduling for asynchronous circuits in bundled-data implementation | In this paper, we propose a new scheduling method for asynchronous circuits in bundled-data implementation. The method is based on integer linear programming (ILP) which explores an optimum schedule under resource or time constraints. To schedule descriptions with many operations,our method approx... | 2006 | |
| 8 |
 | Furse, Cynthia M.; Farhang, Behrouz; Richardson, Stephanie | Integrated system-level design in electrical engineering | This paper describes an NSF-sponsored department level curriculum reform project in the Electrical and Computer Engineering Department at the University of Utah. The project focuses on developing system-level design projects (mostly labs, but a few software-only projects) that integrate ideas within... | Curriculum reform; Electrical and Computer Engineering Department; Integrated system-level design | 2006 |
| 9 |
 | Myers, Chris J. | Learning genetic regulatory network connectivity from time series data | Abstract. Recent experimental advances facilitate the collection of time series data that indicate which genes in a cell are expressed. This paper proposes an efficient method to generate the genetic regulatory network inferred from time series data. Our method fi_x000C_rst encodes the data into le... | 2006 | |
| 10 |
 | Tasdizen, Tolga; Awate, Suyash P.; Whitaker, Ross T. | Model-based image reconstruction for dynamic cardiac perfusion MRI from sparse data | The paper presents a novel approach for dynamic magnetic resonance imaging (MRI) cardiac perfusion image reconstruction from sparse k-space data. It formulates the reconstruction problem in an inverse-methods setting. Relevant prior information is incorporated via a parametric model for the perfusi... | 2006 | |
| 11 |
 | Furse, Cynthia M. | Noncontact probes for wire fault location with reflectometry | This paper describes an approach to locate wire faults using reflectometry without physical contact with the wire conductor. This noncontact method is capable of locating faults on both dead and live powered wires with today's reflectometry technologies, and it does not require any modification or ... | Wire fault location; Noncontact probes; Reflectometry; Capacitive coupling; Inductive coupling; Aging aircraft wire | 2006 |
| 12 |
 | Harrison, Reid R. | Polymer based thin film coils as a power module of wireless neural interfaces | For the conventional Utah Electrode Array (UEA) to be able to function without transcutaneous wire connections, a kind of power source is needed in an integrated form with the UEA. To develop such wireless neural interfaces, inductive coupling between two coils was used to deliver power to the integ... | Wireless; Neural interfaces; Thin film coils; Utah Electrode Array | 2006 |
| 13 |
 | Harrison, Reid R. | Power minimization of a 433-MHz LC VCO for an implantable neural recording system | This paper presents a new random-search based integrated inductor optimization algorithm. The algorithm provides the designer with valuable information about design tradeoffs. it is used to design an inductor to minimize power dissopation in an LC VCO. The measured results show that a 53:1 power sav... | 2006 | |
| 14 |
 | Harrison, Reid R. | Power, clock, and data recovery in a wireless neural recording device | For many medical applications, neural recording systems should be fully implantable. Transcutaneous wires must be compleley eliminated, and this necessitates the wireless transfer of power, clock and configuration data to the device. We have developed, fabricated, and tested cirucits that recover po... | 2006 | |
| 15 |
 | Furse, Cynthia M. | Selection criteria of test signals for correlation-based wire fault analysis (preprint) | This paper compares reflectometry signals for location of intermittent faults on live electrical cables. STDR, SSTDR, linear chirp, quadratic chirp, concave-up chirp, convex-down chirp and all frequency randomized phase noise signals were tested. The SSTDR was observed to be the most effective sig... | 2006 | |
| 16 |
 | Harrison, Reid R. | Signal amplification, detection and transmission in a wireless 100-electrode neural recording system | We are developing a fully-implantable neural recording system with wireless power and data transfer. As part of this system, we have developed a low-power integrated circuit that performs power rectification and and regulation, reception of configuration data, neural signal amplification and filt... | 2006 | |
| 17 |
 | Mathews, V. John | Stochastic mean-square performance analysis of an adaptive Hammerstein filter | Abstract-This paper presents an almost sure mean-square performance analysis of an adaptive Hammerstein filter for the case when the measurement noise in the desired response signal is a martingale difference sequence. The system model consists of a series connection of a memoryless nonlinearity fol... | 2006 | |
| 18 |
 | Mathews, V. John | Subband particle filtering for speech enhancement | ABSTRACT Particle filters have recently been applied to speech enhancement when the input speech signal is modeled as a time-varying autoregressive process with stochastically evolving parameters. This type of modeling results in a nonlinear and conditionally Gaussian statespace system that is not ... | 2006 | |
| 19 |
 | Myers, Chris J. | Verification of timed circuits with failure-directed abstractions | Abstract-This paper presents a method to address state explosion in timed-circuit verification by using abstraction directed by the failure model. This method allows us to decompose the verification problem into a set of subproblems, each of which proves that a specific failure condition does not oc... | 2006 | |
| 20 |
 | Furse, Cynthia M. | Broadband and multiband antenna design using the genetic algorithm to create amorphous shapes using ellipses | A method is demonstrated for generating compact, broadband and multiband antennas using ellipses to create new amorphous shapes with greater bandwidth and less return loss that previously demonstrated. Four designs are presented including a tri-band patch antenna optimized for low reflection loss a... | Broadband antenna design; Multiband antenna design; Ellipses | 2006-10 |
| 21 |
 | Khan, Faisal Habib | Deriving new topologies of DC-DC converters featuring basic switching cells | This paper will introduce the two basic switching cells, P-cell and N-cell, and their applications in different power electronic circuits. These basic cells have one switching element and one diode. The P-cell is the mirror circuit of the N-cell and vice-versa, and this paper suggests that any powe... | DC-DC converters; P-cell; N-cell; Switching cells; Cúk converters | 2006-07 |
| 22 |
 | Harrison, Reid R. | Design and implementation of multipattern generators in analog VLSI | In recent years, computational biologists have shown through simulation that small neural networks with fixed connectivity are capable of producing multiple output rhythms in response to transient inputs. It is believed that such networks may play a key role in certain biological behaviors such as d... | 2006-07 | |
| 23 |
 | Furse, Cynthia M. | Invisible fray: a critical analysis of the use of reflectometry for fray location | Significant international research and development efforts have been devoted to methods and equipment for locating wiring faults, particularly those on aging aircraft. Several reflectometry methods that send high frequency signals down the line and analyze the returned reflections have risen to the... | Reflectometry; Fray location; Invisible fray; Fault location; Aging wiring; Spread spectrum reflectometry | 2006-06 |
| 24 |
 | Harrison, Reid R.; Tabib-Azar, Massood | Microcontroller-based wireless recording unit for neurodynamic studies in saltwater | This paper presents the design of a biocompatible implantable neural-recording unit for Aplysia californica, which is a common sea slug. Low-voltage extracellular neural signals (< 250 μV) are recorded using a high-performance low-power low-noise preamplifier that is packaged with programmable dig... | Sea slug; Data acquisition; Implantable; Low-noise amplifier; Low-power circuits; Neural sensor; Telemetry | 2006-10 |
| 25 |
 | Furse, Cynthia M. | Multicarrier reflectometry | A new reflectometry method called multicarrier reflectometry (MCR) for fault location in cables is proposed. MCR combines a weighted set of sinusoidal excitations into a signal that is sent down the wire. The reflected signal from the cable under test is analyzed in order to determine the length of ... | Multicarrier reflectometry; MCR; Fault location | 2006-06 |