Now showing items 2226-2245 of 2310

    • 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, ...
    • Variance Spectroscopy 

      Streit, Jason K.; Bachilo, Sergei M.; Sanchez, Stephen R.; Lin, Ching-Wei; Weisman, R. Bruce (2015)
      Spectroscopic analysis and study of nanoparticle samples is often hampered by structural diversity that presents a complex superposition of spectral signatures. By probing the spectra of small volumes within dilute samples, ...
    • 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 ...
    • Ventricular coupling in single ventricle patients: a MRI study of cardiac biomechanics 

      Krishnamurthy, Ramkumar; Noel, Cory V.; Pan, Wei; Jacot, Jeffrey; Lantin-Hermoso, Regina; Krishnamurthy, Rajesh (2016)
    • 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 ...
    • Virtual Ring Buffer for Camera Application Concurrency 

      Reyes, Jose Eduardo (2015-01-26)
      Smartphones with integrated cameras have inspired a growing number of real- time, computer vision applications. Existing camera software architectures, however, do not support concurrency: only one application accesses the ...
    • 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 ...