Now showing items 311-330 of 2368

    • Clinical utility of breath ammonia for evaluation of ammonia physiology in healthy and cirrhotic adults 

      Spacek, Lisa A.; Mudalel, Matthew; Tittel, Frank; Risby, Terence H.; Solga, Steven F. (2015)
      Blood ammonia is routinely used in clinical settings to assess systemic ammonia in hepatic encephalopathy and urea cycle disorders. Despite its drawbacks, blood measurement is often used as a comparator in breath studies ...
    • A Closed-Form Technique for the Reliability and Risk Assessment of Wind Turbine Systems 

      Mensah, Akwasi F.; Dueñas-Osorio, Leonardo (2012)
      This paper proposes a closed-form method to evaluate wind turbine system reliability and associated failure consequences. Monte Carlo simulation, a widely used approach for system reliability assessment, usually requires ...
    • CMOS Processor Element For A Fault-Tolerant SVD Array 

      Kota, Kishore; Cavallaro, Joseph R. (1993-07-20)
      This paper describes the VLSI implementation of a CORDIC based processor element for use in a fault-reconfigurable systolic array to compute the Singular Value Decomposition (SVD) of a matrix. The chip implements a time ...
    • CO2 Adsorption by para-Nitroaniline Sulfuric Acid-Derived Porous Carbon Foam 

      Andreoli, Enrico; Barron, Andrew R. (2016)
      The expansion product from the sulfuric acid dehydration of para-nitroaniline has been characterized and studied for CO2 adsorption. The X-ray photoelectron spectroscopy (XPS) characterization of the foam indicates that ...
    • Cobalt Nanoparticles Embedded in Nitrogen-Doped Carbon for the Hydrogen Evolution Reaction 

      Fei, Huilong; Yang, Yang; Peng, Zhiwei; Ruan, Gedeng; Zhong, Qifeng; Li, Lei; Samuel, Errol L.G.; Tour, James M. (2015)
      There is great interest in renewable and sustainable energy research to develop low-cost, highly efficient, and stable electrocatalysts as alternatives to replace Pt-based catalysts for the hydrogen evolution reaction ...
    • Code design and multiuser detection for code division multiple access systems with continuous phase modulation 

      Papasakellariou, Aristides (1996)
      The proliferation of wireless communications services combined with the limited spectrum availability have placed the bandwidth utilization as a major performance measure. Consequently, the bandwidth allocation technique ...
    • Code design for multiple-antenna systems 

      Memarzadeh, Mahsa (2001)
      We propose a systematic method for the design of space-time codes for AWGN slowly and fast Rayleigh fading channels. This can be accomplished by adopting a concatenated space-time code structure, where an orthogonal transmit ...
    • Code Design for Multiple-Antenna Systems 

      Memarzadeh, Mahsa (2001-04-20)
      We propose a systematic method for the design of space-time codes for AWGN slowly and fast Rayleigh fading channels. This can be accomplished by adopting a concatenated space-time code structure, where an orthogonal transmit ...
    • Code design for the relay channel 

      Chakrabarti, Arnab (2007)
      The design of wireless communication networks is based on the premise that networks are collections of reliable point-to-point links between communicating nodes. Such a communication model, although simple, is inefficient ...
    • Code Transformations to Improve Memory Parallelism 

      Pai, Vijay S.; Adve, Sarita V. (1999-11-20)
      None
    • Code Transformations to Improve Memory Parallelism 

      Pai, Vijay S.; Adve, Sarita V. (2000-05-20)
      Current microprocessors incorporate techniques to exploit instruction-level parallelism (ILP). However, previous work has shown that these ILP techniques are less effective in removing memory stall time than CPU time, ...
    • Coding for Phase Change Memory Performance Optimization 

      Mirhoseini, Azalia (2012-09-05)
      Over the past several decades, memory technologies have exploited continual scaling of CMOS to drastically improve performance and cost. Unfortunately, charge-based memories become unreliable beyond 20 nm feature sizes. ...
    • Coding Theoretic Approach to Image Segmentation 

      Ndili, Unoma; Nowak, Robert David; Figueiredo, Mario (2001-10-20)
      In this paper, using a coding theoretic approach, we implement Rissanen's concept of minimum description length (MDL) for segmenting an image into piecewise homogeneous regions. Our image model is a Gaussian random field ...
    • Coding Theoretic Approach to Image Segmentation 

      Ndili, Unoma (2001-05-20)
      Using a coding theoretic approach, we achieve unsupervised image segmentation by implementing Rissanen's concept of Minimum Description Length for estimating piecewise homogeneous regions in images. MDL offers a mathematical ...
    • Coding-spreading tradeoff for lattice codes 

      Khoshnevis, Ahmad (2001)
      A fixed bandwidth expansion can be achieved either by coding or spreading, while each have different effect on the resultant signal space. Coding increases both Shannon and Fourier bandwidth whereas spreading only increases ...
    • Coding-Spreading Tradeoff for Lattice Codes 

      Khoshnevis, Ahmad (2001-04-20)
      A fixed bandwidth expansion can be achieved either by coding or spreading, while each have different effect on the resultant signal space. Coding increases both Shannon and Fourier bandwidth whereas spreading only increases ...
    • Cofactor engineering for advancing chemical biotechnology 

      Wang, Yipeng; San, Ka-Yiu; Bennett, George N. (2013)
      Cofactors provide redox carriers for biosynthetic reactions, catabolic reactions and act as important agents in transfer of energy for the cell. Recent advances in manipulating cofactors include culture conditions or ...
    • Coherent Fano resonances in a plasmonic nanocluster enhance optical four-wave mixing 

      Zhang, Yu; Wen, Fangfang; Zhen, Yu-Rong; Nordlander, Peter; Halas, Naomi J. (2013)
      Plasmonic nanoclusters, an ordered assembly of coupled metallic nanoparticles, support unique spectral features known as Fano resonances due to the coupling between their subradiant and superradiant plasmon modes. Within ...
    • Coherent Image Processing using Quaternion Wavelets 

      Chan, Wai Lam; Choi, Hyeokho; Baraniuk, Richard G. (2005-08-01)
      We develop a quaternion wavelet transform (QWT) as a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant, tight frame representation whose coefficients sport a magnitude and three ...
    • Coherent Multiscale Image Processing using Quaternion Wavelets 

      Chan, Wai Lam; Choi, Hyeokho; Baraniuk, Richard G. (2006-10-01)
      The quaternion wavelet transform (QWT) is a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant tight frame representation whose coefficients sport a magnitude and three phases: ...