Filters: Department: "Electrical & Computer Engineering" Collection: "ir_uspace" Format: "application/pdf"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 301 |
 |
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 |
| 302 |
 |
Mathews, V. John | A stability result for RLS adaptive bilinear filters | Abstract- This letter considers recursive least squares (RLS) adaptive nonlinear filtering using bilinear system models. It is shown that the extended RLS adaptive bilinear filter, as well as the equation-error RLS adaptive bilinear filter, are guaranteed to be stable in the sense that the time aver... | 1994 | |
| 303 |
 |
Khan, Faisal Habib | Universal multilevel DC-DC converter with variable conversion ratio, high compactness factor and limited isolation feature | A multilevel dc-dc converter with programmable conversion ratio (CR) is presented in this paper. This converter is a modified version of the MMCCC converter. A universal version of the MMCCC is developed in this paper, and the CR can be easily changed within a wide range. The MMCCC converter is bas... | 2008-02 | |
| 304 |
 |
Tasdizen, Tolga; Whitaker, Ross T. | A geometric multigrid approach to solving the 2D inhomogeneous laplace equation with internal drichlet boundary conditions | The inhomogeneous Laplace (Poisson) equation with internal Dirichlet boundary conditions has recently appeared in several applications to image processing and analysis. Although these approaches have demonstrated quality results, the computational burden of solution demands an efficient solver. Desi... | 2005 | |
| 305 |
 |
Tasdizen, Tolga; Whitaker, Ross T. | Geometric surface smoothing via anisotropic diffusion of normals | This paper introduces a method for smoothing complex, noisy surfaces, while preserving (and enhancing) sharp, geometric features. It has two main advantages over previous approaches to feature preserving surface smoothing. First is the use of level set surface models, which allows us to process ver... | 2002 | |
| 306 |
 |
Mathews, V. John | Adaptive nonlinear digital filter with sequential regression algorithm | The purpose of this paper is to introduce an adaptive nonlinear digital filtering algorithm which use the sequential regression (SER) method to update the second order Volterra filter coefficients in a recursive way. Conventionally, the SER method has been used to invert large matrices which result ... | 1984 | |
| 307 |
 |
Mathews, V. John; Dubow, Joel | 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 work, the static nonlinearity is modeled using a polynomial system and the linear f... | 2002 | |
| 308 |
 |
Furse, Cynthia M.; Gandhi, Om P.; Lazzi, Gianluca | FDTD computation of power deposition in the head for cellular telephones | The finite-difference time-domain method is used to calculate radiation pattern and specific absorption rate (SAR) in the human head due to cellular telephones. For realistic simulation of the ordinary positions of holding the phone, the ear of the model is pressed against the head, the head is tilt... | Finite-difference time-domain method; FDTD; Specific absorption rate; Radiation patterns; Human head model; Power deposition | 1996 |
| 309 |
 |
Furse, Cynthia M. | Electromagnetics education in North America | This paper starts with a description of the activities of the education committees of the IEEE Antennas and Propagation, Microwave Theory and Techniques, and Electromagnetic Compatibility societies and the United States National Committee of the International Union of Radio Science (USNC/URSI).We t... | 2005 | |
| 310 |
 |
Khan, Faisal Habib | Multilevel modular capacitor clamped DC-DC converter | A novel topology of multilevel modular capacitor clamped dc-dc converter (MMCCC) will be presented in this paper. In contrast to the conventional flying capacitor multilevel dc-dc converter (FCMDC), this new topology is completely modular and requires a simpler gate drive circuit. Moreover, the new ... | Capacitor-clamped converter; DC-DC converter; MMCCC; Multilevel modular capacitor | 2006-12 |
| 311 |
 |
Tasdizen, Tolga; Whitaker, Ross T. | Curvature-based transfer functions for direct volume rendering: methods and applications | Direct volume rendering of scalar fields uses a transfer function to map locally measured data properties to opacities and colors. The domain of the transfer function is typically the one-dimensional space of scalar data values. This paper advances the use of curvature information in multi-dimensio... | 2003 | |
| 312 |
 |
Stringfellow, Gerald B. | Effect of growth rate on step structure and ordering in GaInP | CuPt ordering is widely observed in GaInP epitaxial layers grown by organometallic vapor phase epitaxy. The formation of this spontaneously ordered structure during epitaxial growth is intimately related to the atomic-scale physical processes occurring on the surface, specifically surface reconst... | Atomic force microscopy; Organometallic vapor phase; Crystallographic plane | 1997 |
| 313 |
 |
Furse, Cynthia M. | Utah's engineers: a statewide initiative for growth | Imagine finding a place where inventors gather to create their inventions. Envision getting a sneak peek at the latest technological innovations in engineering and computer science. Can you see yourself as an inventor? Join us on February 20 for Meet an Inventor Day sponsored by the students of... | 2010-10-06 | |
| 314 |
 |
Mathews, V. John | A fast recursive least-squares adaptive nonlinear filter | This paper presents a fast, recursive least-squares (RLS) adaptive nonlinear filter. The nonlinearity in the system is modeled using the Hammerstein model, which consists of a memoryless polynomial nonlinearity followed by a finite impulse response linear system. The complexity of our method is abou... | 1988 | |
| 315 |
 |
Khan, Faisal Habib | A 5 kW Bi-directional multilevel modular DC-DC converter (MMCCC) featuring built in power management for fuel cell and hybrid electric automobiles | Abstract- A new capacitor clamped modular dc-dc converter with bi-directional power handling capability will be presented in this paper. This inductor-free design is modular, and it is possible to integrate multiple loads and sources simultaneously in the converter. Moreover, this 5 kW dc-dc convert... | 2007 | |
| 316 |
 |
Harrison, Reid R. | Biologically inspired analog IC for visual collision detection | We have designed and tested a single-chip analog VLSI sensor that detects imminent collisions by measuring radially expanding optic flow. The design of the chip is based on a model proposed to explain leg-extension behavior in flies during landing approaches. We evaluated a detailed version of thi... | Visual collision detection; VLSI | 2005-11 |
| 317 |
 |
Stevens, Kenneth; Myers, Chris J. | Average-case optimized technology mapping of one-hot domino circuits | This paper presents a technology mapping technique for optimizing the average-case delay of asynchronous combinational circuits implemented using domino logic and one-hot encoded outputs. The technique minimizes the critical path for common input patterns at the possible expense of making less commo... | 1998 | |
| 318 |
 |
Myers, Chris J. | Synthesis of timed asynchronous circuits | Abstract-In this paper we present a systematic procedure to synthesize timed asynchronous circuits using timing constraints dictated by system integration, thereby facilitating natural interaction between synchronous and asynchronous circuits. In addition, our timed circuits also tend to be more & d... | 1993 | |
| 319 |
 |
Stringfellow, Gerald B.;Inglefield, Colin E.;Taylor, P. Craig | Characterization of unicompositional GaInP2 ordering heterostructures grown by variation of V/III ratio | Photoluminescence (PL) and photoluminescence excitation (PLE) spectroscopies are employed to investigate single heterostructures based on two GaInP2 layers that have the same composition but different degrees of order on the cation sublattice. Four sample configurations are studied: two complemen... | Heterostructures; Growth parameters; Growth temperature | 1997 |
| 320 |
 |
Stringfellow, Gerald B. | Mechanism for liquid phase epitaxial growth of nonequilibrium compositions producing a coherent interface | A model is presented for growth by so-called composition pulling, wherein an epitaxial deposit grows coherently but with a composition different from that which would be in bulk equilibrium with the liquid phase from which growth occurs. The breakdown of coherent growth occurs when a dislocation nuc... | Lattice-matching overgrowths; Composition pulling; Dislocation interface | 1977 |
| 321 |
 |
Tasdizen, Tolga | Boundary estimation from intensity/color images with algebraic curve models | A new concept and algorithm are presented for noniterative robust estimation of piecewise smooth curves of maximal edge strength in small image windows - typically 8 x 8 to 32 x 32. This boundary-estimation algorithm has the nice properties that it uses all the data in the window and thus can find l... | 2000 | |
| 322 |
 |
Harrison, Reid R. | HermesC: low-power wireless neural recording system for freely moving primates | Neural prosthetic systems have the potential to restore lost functionality to amputees or patients suffering from neurological injury or disease. Current systems have primarily been designed for immobile patients, such as tetraplegics functioning in a rather static, carefully tailored environment.... | Brain-machine interface; Low power; Neural prosthetics; Telemetry; Wireless; Neural recording; HermesC | 2009-08 |
| 323 |
 |
Khan, Faisal Habib | Switching cells and their implications for power electronic circuits | This paper will introduce two basic switching cells, P-cell and N-cell, along with their implications and applications in power electronic circuits. The concept of switching cells in power electronic circuits started in the late 1970's. The basic cells presented in this paper have one switching ele... | 2009-05 | |
| 324 |
 |
Furse, Cynthia M. | Leaky fields from damaged shields | In a world where wireless devices appear to dominate society, it is wires that truly rule and connect our lives. Certainly the spread of cellular phones, Bluetooth technology, wireless sensor networks, and advances of ion-lithium battery capabilities have made common daily devices more disconnecte... | 2011 | |
| 325 |
 |
Stringfellow, Gerald B. | Surfactant controlled growth of GaInP by organometallic vapor phase epitaxy | The effect of the surfactant Sb has been studied for GaInP semiconductor alloys grown by organometallic vapor phase epitaxy. Dramatic changes in the optical and electrical properties of GaInP with CuPt ordering have been observed. A small concentration of triethylantimony TESb in the vapor is fou... | Semiconductors; Surface active agents | 2000 |