UScholar Works
 
Filters: Date: "2005" School Or College: "College of Engineering" Collection: ir_uspace
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CreatorTitleDescriptionSubjectDate
1 Brunvand, Erik L.A case for increased operating system support in chip multi-processorsWe identify the operating system as one area where a novel architecture could significantly improve on current chip multi-processor designs, allowing increased performance and improved power efficiency. We first show that the operating system contributes a non-trivial overhead to even the most com...2005
2 Balasubramonian, RajeevA case for increased operating system support in chip multi-processorsWe identify the operating system as one area where a novel architecture could significantly improve on current chip multi-processor designs, allowing increased performance and improved power efficiency. We first show that the operating system contributes a non-trivial overhead to even the most com...2005
3 Tasdizen, Tolga; Whitaker, Ross T.A geometric multigrid approach to solving the 2D inhomogeneous laplace equation with internal drichlet boundary conditionsThe 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
4 Scarpulla, MichaelCarrier concentration dependencies of magnetization & transport in Ga1-xMnxAs1-yTeyWe have investigated the transport and magnetization characteristics of Ga1-xMnxAs intentionally compensated with shallow Te donors. Using ion implantation followed by pulsed-laser melting, we vary the Te compensation and drive the system through a metal-insulator transition (MIT). This MIT is assoc...Gallium arsenide; Ferromagnetic semiconductors; Magnetization; Resistivity2005
5 Furse, Cynthia M.Commission B (fields and waves) international survey about EM educationCommission B has the terms of reference "Fields and waves", which have been well established on the basis of electromagnetism and Maxwell's equations. Experts in this area need a firm basis in mathematics and physics as well as their historical background; though the subjects are sometimes too heav...2005
6 Liu, FengComputational R&D for industrial applicationsRecent advances in high-speed supercomputer and computational algorithms have brought us into a new era of computational materials science. These advances make it possible to investigate many existing materials systems that were previously considered intractable and also predict and design novel mat...Computational materials science2005
7 Freire, JulianaDesigning information-preserving mapping schemes for XMLAn XML-to-relational mapping scheme consists of a procedure for shredding XML documents into relational databases, a procedure for publishing databases back as documents, and a set of constraints the databases must satisfy. In previous work, we discussed two notions of information preservation for m...Losslessness; Validation; Mapping scheme; Edge++; LILO; Lossless Inlining; Lossless Outlining; XML Schema2005
8 Scarpulla, MichaelEffect of film thickness on the incorporation of Mn interstitials in Ga1-xMnxAsWe have investigated the effect of film thickness on the distribution of Mn atoms at various lattice sites in Ga1−xMnxAs thin films. We find that the growth surface acts as a sink facilitating the outdiffusion of Mn interstitials sMnId, and thus reducing its concentration in the film. The outdiffu...Interstitials; Gallium arsenide2005
9 Furse, Cynthia M.Electromagnetics education in North AmericaThis 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
10 Tasdizen, Tolga; Whitaker, Ross T.; Marc, Robert E.; Jones, Bryan W.Enhancement of cell boundaries in transmission electon microscopy imagesTransmission electron microscopy (TEM) is an important modality for the analysis of cellular structures in neurobiology. The computational analysis of neurons entail their segmentation and reconstruction from TEM images. This problem is complicated by the heavily textured nature of cellular TEM ima...2005
11 Tiwari, AshutoshEpitaxial growth and properties of MoOx(2We report the growth of epitaxial molybdenum oxide (MoOx,2<x<2.75) films on c plane of sapphire substrate using pulsed laser deposition in oxygen environment. The structure was characterized using x-ray diffraction, high resolution transmission electron microscopy and x-ray photoelectron spectroscop...Epitaxy; MoO2005
12 Tiwari, AshutoshEpitaxial growth and properties of Zn1-xVxO diluted magnetic semiconductor thin filmsHere we report systematic studies on the epitaxial growth and properties of Zn1−xVxO[x=0.001-0.2] thin films deposited onto sapphire c-plane single crystals. The thin films were deposited using pulsed laser deposition technique and were found to be epitaxial in nature. X-ray diffraction and high ...ZnO; Vanadium2005
13 Bedrov, Dmitro; Smith, Grant D.Equilibrium sampling of self-associating polymer solutions: a parallel selective tempering approachWe present a novel simulation algorithm based on tempering a fraction of relaxation-limiting interactions to accelerate the process of obtaining uncorrelated equilibrium configurations of self-associating polymer solutions. This approach consists of tempering (turning off) the attractive interactio...Equilibrium sampling; Self-associating systems; Parallel selective tempering2005
14 Riloff, Ellen M.Exploiting subjectivity classification to improve information extractionInformation extraction (IE) systems are prone to false hits for a variety of reasons and we observed that many of these false hits occur in sentences that contain subjective language (e.g., opinions, emotions, and sentiments). Motivated by these observations, we explore the idea of using subjecti...Subjectivity classification; Information extraction; Subjectivity analysis; MUC-42005
15 Scarpulla, MichaelFabrication of GaNxAs1-x quantum structures by focused ion beam patterningA novel approach to the fabrication of GaNxAs1-x quantum dots and wires via ion beam patterning is presented. Photomodulated reflectance spectra confirm that N can be released from the As sublattice of an MBE-grown GaNxAs1-x film by amorphization through ion implantation followed by regrowth upon r...Gallium arsenide; Quantum dots; Quantum wires; Thermal annealing2005
16 Harrison, Reid R.Fly like a flyTHIS FALL, several biologist colleagues of mine plan to build a movie theater for houseflies. In fact, it's a miniature IMAX theater-complete with a panoramic screen-inside of which they'll place a tiny rotating cage, a downsized version of the ones that astronauts use to simulate tumbling in spa...2005
17 Normann, Richard A.Functional reorganization of primary visual cortex induced by electrical stimulation in the cat.Compared to the high degree of plasticity observed in a juvenile, mature sensory cortices have long been held to be immutable but, recently, researchers have suggested some plasticity persists in the mature cortex. Cortical reorganization has particular saliency to the development of a cortically ba...Cat; Electrophysiology; Phosphene; Plasticity; Receptive Field; Striate Cortex2005
18 Brunvand, Erik L.HDL modeling for analysis and optimization of asynchronous controllersWe propose a simulation-based technique for analysis and optimization of extended burst-mode (XBM) asynchronous controllers. In asynchronous controllers of this sort, timing information on control signals is significant both for performance enhancement and timing validation. Timing information, ...2005
19 Mathews, V. JohnIdentification of nonlinear, memoryless systems using chebyshev nodesABSTRACT This paper describes an approach for identification of static nonlinearities from input-output measurements. The approach is based on minimax approximation of memoryless nonlinear systems using Chebyshev polynomials. For memoryless nonlinear systems that are finite and continuous with fini...2005
20 Riloff, Ellen M.Identifying sources of opinions with conditional random fields and extraction patternsRecent systems have been developed for sentiment classification, opinion recognition, and opinion analysis (e.g., detecting polarity and strength). We pursue another aspect of opinion analysis: identifying the sources of opinions, emotions, and sentiments. We view this problem as an information ext...Sentiment classification; Opinion recognition; Opinion analysis; Conditional random fields; AutoSlog; Sources of opinions2005
21 Freire, JulianaIMAX: incremental maintenance of schema-based XML statisticsCurrent approaches for estimating the cardinality of XML queries are applicable to a static scenario wherein the underlying XML data does not change subsequent to the collection of statistics on the repository. However, in practice, many XML-based applications are dynamic and involve frequent u...IMAX; Incremental Maintenance of XML statistics; StatiX; Datasets; Statistics2005
22 Parker, Steven G.; Hansen, Charles D.Interactive volume rendering of large datasets using the silicon graphics Onyx4 visualization systemMany recent approaches to interactive volume rendering have focused on leveraging the power of commodity graphics hardware. Though currently limited to relatively small datasets, these approaches have been overwhelmingly successful. As the size of volumetric datasets continues to grow at a rapid pa...Volume visualization; Onyx4; Interactive volume rendering; Parallel volume rendering; Large datasets; Visualization systems2005
23 Liu, FengMechanical stability of ultrathin Ge/Si film on SiO2: the effect of Si/SiO2 interfaceWe perform two-dimensional linear elastic finite element analysis to investigate the mechanical stability of ultrathin Ge/Si film grown on or bonded to SiO2, using imperfect interface elements between Si and SiO2 to model Si/SiO2 interfacial slippage. We demonstrate that the overall composite film i...Ultrathin films; Si/SiO2 interface; Mechanical stability2005
24 Balasubramonian, RajeevMicroarchitectural wire management for performance and power in partitioned architecturesFuture high-performance billion-transistor processors are likely to employ partitioned architectures to achieve high clock speeds, high parallelism, low design complexity, and low power. In such architectures, inter-partition communication over global wires has a significant impact on overall proc...Microarchitecture; Partitioned architectures; Heterogeneous interconnects; Cache access2005
25 Furse, Cynthia M.Miniaturized biocompatible microstrip antenna using genetic algorithmBiocompatible antennas are an area of recent research that can facilitate remote communication with medical implants. This paper shows several possible designs of a "waffle-type" antenna created using genetic algorithms (GAs) that are of a size potentially suitable for cardiac pacemakers in 402-405 ...2005
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