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Creator | Title | Description | Subject | Date |
451 |
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Foreman, K. Kenneth; Ballard, D. James | Amplification of fall risk in Parkinsons disease: the influence of comorbidities | Long term studies examining the progression of Parkinson's disease (PD) report the mean age of diagnosis to be in the mid sixties.' The diagnosis of PD typically .occurs after the presentation of motor deficits such as resting tremor, rigidity, hypokinesia, or postural instability. 2 Parkinson's di... | | 2010 |
452 |
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Vardeny, Zeev Valentine; Gellermann, Werner | Amplified resonant Raman scattering in conducting polymer thin films | Using picosecond pulsed laser excitation, we investigate the optical emission characteristics of poly(2,5-dioctyloxy-p-phenylenevinylene), (DOO-PPV), thin films at high excitation intensities (~1-90 MW/cm2). We observe the presence of amplified resonance Raman scattering in the emission spectra of c... | Amplified resonant Raman scattering; High excitation intensities; pi-conjugated polymers | 1998 |
453 |
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Vardeny, Zeev Valentine | Amplified spontaneous emission and lasing in conducting polymers and fluorescent dyes in opals as photonic crystals | Spectral narrowing of photoluminescence (PL) and evolution of sharp emission lines upon optical excitation have been observed in opals made of SiO2 spheres infiltrated with conducting polymers such as OOPPV and MDDOPPV and also fluorescent dyes such as rhodamine 6G, NK-3483, and coumarin 120. Their ... | Amplified spontaneous emission; Lasing; Fluorescent dyes | 1999 |
454 |
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Vardeny, Zeev Valentine; Ehrenfreund, Eitan A. | Amplitude and phase modes in trans-polyacetylene: resonant Raman scattering and induced infrared activity | The resonant Raman scattering (RRS) from the three Ag modes of trans-polyacetylene and the charged-induced ir modes are analyzed with use of the amplitude- and phase-mode theories. It is shown that the observed phonon frequencies and the relative intensities of all modes obtained at various laser ex... | Induced infrared activity; Ag modes; Amplitude modes; Phase modes; Trans-polyacetylene | 1987-07 |
455 |
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Stevens, Kenneth | An A-FPGA architecture for relative timing based asynchronous designs | This paper presents an asynchronous FPGA architecture that is capable of implementing relative timing based asynchronous designs. The architecture uses the Xilinx 7-Series architecture as a starting point and proposes modifications that would make it asynchronous design capable while keeping it full... | | 2014-01-01 |
456 |
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George, Lal | An abstract machine for parallel graph reduction | An abstract machine suitable for parallel graph reduction on a shared memory multiprocessor is described. Parallel programming is plagued with subtle race conditions resulting in deadlock or fatal system errors. Due to the nondeterministic nature of program execution the utilization of resources ma... | Parallel graph reduction; Abstract machines | 1989 |
457 |
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George, Lal | An abstract machine for parallel graph reduction | An abstract machine for parallel graph reduction on a shared memory multiprocessor is described. This is intended primarily for normal order (lazy) evaluation of functional programs. It is absolutely essential in such a design to adapt an efficient sequential model since during execution under limit... | Parallel graph reduction | 1989 |
458 |
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Mathews, V. John | An adaptive channel estimator for CDMA systems in multipath fading channels | ABSTRACT CDMA systems in multipath fading channels need to estimate channel parameters for coherent detection of the transmitted signals. In this paper we present a simple but effective channel estimation algorithm that can be incorporated into most types of multiuser receivers to obtain good dete... | | 2001 |
459 |
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Subrahmanyam, P.A. | An algebraic formulation of seitz's weak conditions for self timed circuits | Two fairly intuitive conditions are given that serve to algebraically characterize Seitz's "weak conditions" for self timed circuits. It is shown that these two conditions embody the 12 temporal logic conditions (developed b y Owicki and Malachi) which are intended to express both the weak condition... | Seitz's weak conditions; Self-timed circuits | 1982 |
460 |
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Sanderson, Allen Reed | An alternative formulation of lyapunov exponents for computing lagrangian coherent structures | Lagrangian coherent structures are time-evolving surfaces that highlight areas in flow fields where neighboring advected particles diverge or converge. The detection and understanding of such structures is an important part of many applications such as in oceanography where there is a need to predic... | | 2014-01-01 |
461 |
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Sokolsky, Pierre | An analog light scattering experiment of hexagonal icelike particles. part I: experimental apparatus and test measurements | An experimental apparatus to measure the scattering properties of hexagonal icelike particles in the analog manner at the helium neon laser wavelength of 0.633 mm has been designed and built. The instrument consists of an array of 36 highly sensitive and linear photodiode detectors that are positi... | | 1999 |
462 |
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Sokolsky, Pierre | An analog light scattering experiment of hexagonal icelike particles. part II: experimental and theoretical results | The scattering properties of hexagonal icelike crystals as measured in the analog manner by the experimental apparatus described in Part I are presented. The crystals are made out of sodium fluoride (NaF), which has an index of refraction similar to that of water ice. The experimentally determined... | | 1999 |
463 |
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Mader, Emily Marie | An analysis of foundation giving in Utah, 2007-2009 | | | 2011 |
464 |
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Warner, Homer R. | An Analysis of Granulocyte Kinetics in Blood and Bone Marrow | Biomedical Informatics | | 1964 |
465 |
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Warner, Homer R. | An Analysis of Leukocyte Radioactivity Curves Obtained with Radioactive Disssopropylflourophosphate (DFP) | Biomedical Informatics | | 1959 |
466 |
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Mathews, V. John | An analytical model of the perceptual threshold function for multichannel image compression | ABSTRACT The human observer is often the final judge of the quality of compressed images. One way to design a compression system that attempts to reduce or eliminate subjective distortions in the coded images is to incorporate a perceptual threshold function model into the compression system. The... | | 1998 |
467 |
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Shirley, Peter S. | An anisotropic phong light reflection model | We present a new BRDF model that attempts to combine the advantages of the various empirical models currently in use. In particular, it has intuitive parameters, is anisotropic, energy-conserving, reciprocal, has an appropriate non-Lambertian diffuse term, and is well-suited for use in a Monte Carlo... | BRDF model; Anisotropic; Phong light reflection model | 2000 |
468 |
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Henderson, Thomas C. | An annotated bibligraphy of multisensor integration | In this paper we give an annotated bibliography of the multisensor integration literature. | Multisensor integration; Bibligraphy | 1988 |
469 |
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Edmunds, George F. Jr. | An annotated key to the nymphs of the families and subfamilies of mayflies | Attempts to provide keys to the families and subfamilies of Ephemeroptera nymphs in general entomology textbooks (i.e. Essig (1942), Chu (1949), and Brues, Melander and Carpenter (1954)) have been far from satisfactory. This difficulty exists largely because of the failure of specialists of the Ephe... | | 1963-06 |
470 |
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Greenfield, Harvey | An application of computer graphics: two concurrent investigations within the medical field | The aim of this project is to apply new or recently developed computer graphic techniques to a particular discipline with the thought of broadening its research capabilities. The discipline chosen, that of medicine, has emphasis places on the area of hemodynamics. It is seen that computer graphics m... | Computer graphic techniques | 1971 |
471 |
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Keller, Robert M. | An approach to determinacy proofs | It is known that any parallel program graph composed of continuous operators itself represents a continuous function. In other words, the network is determinate in the sense that for a given input, the output is unique, independent of the timing of the constituent operators. This result is applied t... | Parallel program graph; Determinacy proofs | 1978 |
472 |
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Warner, Homer R. | An Approach to Evaluating the Completeness of a Medical Knowledge Base | Biomedical Informatics | | 1989 |
473 |
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Henderson, Thomas C. | An approach to three-dimensional scene databases | Current image database research is concerned for the most part with the encoding and processing of two-dimensional images. However, the most successful approach to computer vision is based on 3-dimensional information, organized as either stacks of 2-D images (e.g., the intrinsic images of Barrow an... | Image databases; Three-dimensional; Scene databases | 1987 |
474 |
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Keller, Robert M.; Lindstrom, Gary E. | An architecture for a loosely-coupled parallel processor | An architecture for a large (e. g. 1000 processor) parallel computer is presented. The processors are loosely-coupled, in the sense that communication among them is fully asynchronous, and each processor is generally not unduly delayed by any immediate need for specific data values. The network supp... | Loosely-coupled; Parallel processors | 1978 |
475 |
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Myers, Chris J. | An asynchronous implementations of the MAXLIST algorithm | ABSTRACT We present an efficient asynchronous VLSI architecture for calculating running maximum or minimum values over a sliding window. Running maximums or minimums are very useful for many signal and image processing tasks. Our architecture performs the calculation using the MAXLIST algorithm. In... | | 1997 |