Now showing items 1760-1779 of 1829

  • VALID: Custom ASIC Verification and FPGA Education Platform 

    Murphy, Patrick; Welsh, Erik; Frantz, Patrick; Hardy, Ricky; Mohsenin, Tinoosh; Cavallaro, Joseph R. (2003-06-01)
    This paper describes VALID, a platform for testing student designed ASICs and for teaching the basics of FPGA design. VALID is designed to maximize ease of use from a student?s perspective while maintaining enough flexibility ...
  • Variable-Rate Universal Slepian-Wolf Coding with Feedback 

    Sarvotham, Shriram; Baron, Dror; Baraniuk, Richard G. (2005-11-01)
    Traditional Slepian-Wolf coding assumes known statistics and relies on asymptotically long sequences. However, in practice the statistics are unknown, and the input sequences are of finite length. In this finite regime, ...
  • Variations in optical coherence tomography resolution and uniformity: a multi-system performance comparison 

    Fouad, Anthony; Pfefer, T. Joshua; Chen, Chao-Wei; Gong, Wei; Agrawal, Anant; Tomlins, Peter H.; Woolliams, Peter D.; Drezek, Rebekah A.; Chen, Yu (2014)
    Point spread function (PSF) phantoms based on unstructured distributions of sub-resolution particles in a transparent matrix have been demonstrated as a useful tool for evaluating resolution and its spatial variation across ...
  • Vertical and in-plane heterostructures from WS2/MoS2 monolayers 

    Gong, Yongji; Lin, Junhao; Wang, Xingli; Shi, Gang; Lei, Sidong; Lin, Zhong; Zou, Xiaolong; Ye, Gonglan; Vajtai, Robert; Yakobson, Boris I.; Terrones, Humberto; Terrones, Mauricio; Tay, Beng Kang; Lou, Jun; Pantelides, Sokrates T.; Liu, Zheng; Zhou, Wu; Ajayan, Pulickel M. (2014)
    Layer-by-layer stacking or lateral interfacing of atomic monolayers has opened up unprecedented opportunities to engineer two-dimensional heteromaterials. Fabrication of such artificial heterostructures with atomically ...
  • Visualizing oil displacement with foam in a microfluidic device with permeability contrast 

    Conn, Charles A.; Ma, Kun; Hirasaki, George J.; Biswal, Sibani Lisa (2014)
    Foam mobility control and novel oil displacement mechanisms were observed in a microfluidic device representing a porous media system with layered permeability. Foam was pre-generated using a flow focusing microfluidic ...
  • Vital-dye-enhanced multimodal imaging of neoplastic progression in a mouse model of oral carcinogenesis 

    Hellebust, Anne; Rosbach, Kelsey; Wu, Jessica Keren; Nguyen, Jennifer; Gillenwater, Ann; Vigneswaran, Nadarajah; Richards-Kortum, Rebecca (2013)
    In this longitudinal study, a mouse model of 4-nitroquinoline 1-oxide chemically induced tongue carcinogenesis was used to assess the ability of optical imaging with exogenous and endogenous contrast to detect neoplastic ...
  • VITURBO: A reconfigurable architecture for ubiquitous wireless networks 

    Vaya, Mani Bhadra (2003)
    A run-time reconfigurable architecture for ubiquitous wireless networks has been designed and implemented. Reconfigurable architectures have the ability to change themselves dynamically thus presenting a viable proposition ...
  • VITURBO: A Reconfigurable Architecture for Ubiquitous Wireless Networks 

    Vaya, Mani (2002-08-01)
    A run-time reconfigurable architecture for ubiquitous wireless networks has been designed and implemented. Reconfigurable architectures have the ability to change themselves dynamically thus presenting a viable proposition ...
  • VITURBO: A Reconfigurable Architecture for Viterbi and Turbo Decoding 

    Cavallaro, Joseph R.; Vaya, Mani (2003-04-20)
    A runtime reconfigurable architecture for high speed Viterbi and Turbo decoding is designed and implemented on an FPGA. The architecture can be reconfigured to decode a range of convolutionally coded data with constraint ...
  • VLSI Architectures and Rapid Prototyping Testbeds for Wireless Systems 

    Cavallaro, Joseph R. (2005-06-01)
    The rapid evolution of wireless access is creating an ever changing variety of standards for indoor and outdoor environments. The real-time processing demands of wireless data rates in excess of 100 Mbps is a challenging ...
  • VLSI Architectures for Multitier Wireless Systems 

    Cavallaro, Joseph R. (1999-11-20)
    Next-generation computing systems will be highly integrated using wireless networking. The Rice Everywhere NEtwork (RENÃ ) project is exploring the integration of WCDMA cellular systems, high speed wireless LANs, and home ...
  • VLSI Decoder Architecture for High Throughput, Variable Block-size and Multi-rate LDPC Codes 

    Sun, Yang; Karkooti, Marjan; Cavallaro, Joseph R. (2007-05-01)
    A low-density parity-check (LDPC) decoder architecture that supports variable block sizes and multiple code rates is presented. The proposed architecture is based on the structured quasi-cyclic (QC-LDPC) codes whose ...
  • VLSI Implementation of a CORDIC SVD Processor 

    Cavallaro, Joseph R.; Keleher, Michael P.; Price, Russell H.; Thomas, Gregory S. (1991-06-20)
    The design and custom CMOS VLSI implementation of a CORDIC SVD processor is presented. Special-purpose parallel processor arrays have many important applications in real-time signal processing. The processor architecture ...
  • VLSI Implementation of Mallat's Fast Discrete Wavelet 

    Guo, Yuanbin; Zhang, Hongzhou; Wang, Xuguang; Cavallaro, Joseph R. (2001-11-20)
    This paper proposes a novel VLSI architecture to compute the DWT (discrete wavelet transform) coefficients using Mallat's algorithm with reduced complexity. We studied the commonality embedded in the mirror filters of the ...
  • VLSI implementation of the multistage detector for next generation wideband CDMA receivers 

    Xu, Gang; Rajagopal, Sridhar; Cavallaro, Joseph R.; Aazhang, Behnaam (2002-03-20)
    The multistage detection algorithm has been proposed as an effective interference cancellation scheme for next generation Wideband Code Division Multiple Access (W-CDMA) base stations. In this paper, we propose a real-time ...
  • Volcano-shape glycerol oxidation activity of palladium-decorated gold nanoparticles 

    Zhao, Zhun; Arentz, Joni; Pretzer, Lori A.; Limpornpipat, Pongsak; Clomburg, James M.; Gonzalez, Ramon; Schweitzer, Neil M.; Wu, Tianpin; Miller, Jeffrey T.; Wong, Michael S. (2014)
    Bimetallic PdAu catalysts are more active than monometallic ones for the selective oxidation of alcohols, but the reasons for improvement remain insufficiently detailed. A metal-on-metal material can probe the structure–catalysis ...
  • Voltage tuning of vibrational mode energies in single-molecule junctions 

    Li, Yajing; Doak, Peter; Kronik, Leeor; Neaton, Jeffrey B.; Natelson, Douglas (2014)
    Vibrational modes of molecules are fundamental properties determined by intramolecular bonding, atomic masses, and molecular geometry, and often serve as important channels for dissipation in nanoscale processes. Although ...
  • Volterra Filter Identification Using Penalized Least Squares 

    Nowak, Robert David (1996-05-20)
    Volterra filters have been applied to many nonlinear system identification problems. However, obtaining good filter estimates from short and/or noisy data records is a difficult task. We propose a penalized least squares ...
  • VOLUME CONDUCTED CURRENTS AND POTENTIALS FROM EXCITABLE CELLS OF CYLINDRICAL GEOMETRY (NERVE FIBERS, SKELETAL MUSCLE) 

    GANAPATHY, NIRMALA (1986)
    The dissertation deals with the evaluation of currents and potentials from a variety of excitable cells of cylindrical geometry. Specifically, the cells considered are the unmyelinated and myelinated nerve fibers and the ...
  • W-CDMA real-time algorithm implementation and evaluation 

    Jones, Bryan Allen (2000-05-20)
    This paper describes a platform to enable and explore the design and implementation of next-generation CDMA wireless base stations. A DSP and FPGA-based multiprocessor board is integrated into a Simulink-based wireless ...