Now showing items 311-330 of 2310

    • 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: ...
    • Coherent multiscale image processing using quaternion wavelets 

      Chan, Wai Lam (2006)
      This thesis develops 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 ...
    • Collective antenna effects in the terahertz and infrared response of highly aligned carbon nanotube arrays 

      Ren, L.; Zhang, Q.; Pint, C.L.; Wójcik, A.K.; Bunney, M. Jr; Arikawa, T.; Kawayama, I.; Tonouchi, M.; Hauge, R.H.; Belyanin, A.A.; Kono, J. (2013)
      We study macroscopically aligned single-wall carbon nanotube arrays with uniform lengths via polarization-dependent terahertz and infrared transmission spectroscopy. Polarization anisotropy is extreme at frequencies less ...
    • Collective dynamics of processive cytoskeletal motors 

      McLaughlin, R. Tyler; Diehl, Michael R.; Kolomeisky, Anatoly B. (2016)
      Major cellular processes are supported by various biomolecular motors that usually operate together as teams. We present an overview of the collective dynamics of processive cytokeletal motor proteins based on recent ...
    • Colony Expansion of Socially MotileᅠMyxococcus xanthusᅠCells Is Driven by Growth, Motility, and Exopolysaccharide Production 

      Patra, Pintu; Kissoon, Kimberley; Cornejo, Isabel; Kaplan, Heidi B.; Igoshin, Oleg A. (2016)
      Myxococcus xanthus, a model organism for studies of multicellular behavior in bacteria, moves exclusively on solid surfaces using two distinct but coordinated motility mechanisms. One of these, social (S) motility is powered ...
    • Combinatorial Clustering of Residue Position Subsets Predicts Inhibitor Affinity across the Human Kinome 

      Bryant, Drew H.; Moll, Mark; Finn, Paul W.; Kavraki, Lydia E. (2013)
      The protein kinases are a large family of enzymes that play fundamental roles in propagating signals within the cell. Because of the high degree of binding site similarity shared among protein kinases, designing drug ...
    • Combinatorial molecular optimization of cement hydrates 

      Qomi, M.J. Abdolhosseini; Krakowiak, K.J.; Bauchy, M.; Stewart, K.L.; Shahsavari, R.; Jagannathan, D.; Brommer, D.B.; Baronnet, A.; Buehler, M.J.; Yip, S.; Ulm, F.-J; Van Vliet, K.J.; Pellenq, R.J-.M. (2014)
      Despite its ubiquitous presence in the built environment, concrete's molecular-level properties are only recently being explored using experimental and simulation studies. Increasing societal concerns about concrete's ...
    • Communication Processors 

      Rajagopal, Sridhar; Cavallaro, Joseph R. (2005-07-01)
      Communication processors are processors with specific optimizations to support communication sys-tems. Communication processors exist in a wide variety of forms and can be categorized based on the communication system, ...
    • Community Driven Digital Signal Processing Laboratories in Connexions 

      Baraniuk, Richard G.; Choi, Hyeokho; Jones, Douglas L.; Potter, Lee (2004-06-01)
      The conventional textbook is largely inadequate for digital signal processing (DSP) laboratory education due to inherent factors such as a small and fragmented market and rapid hardware obsolescence. Freely available ...
    • Compact Hardware Accelerator for Functional Verification and Rapid Prototyping of 4G Wireless Communication Systems 

      Guo, Yuanbin; McCain, Dennis (2004-11-01)
      In this paper, we propose an FPGA-based hardware accelerator platform with Xilinx Virtex-II V3000 in a compact PCMCIA form factor. By partitioning the complex algorithms in the 4G simulator to the hardware accelerator, ...
    • Compact solar autoclave based on steam generation using broadband light-harvesting nanoparticles 

      Neumann, Oara; Feronti, Curtis; Neumann, Albert D.; Dong, Anjie; Schell, Kevin; Lu, Benjamin; Kim, Eric; Quinn, Mary; Thompson, Shea; Grady, Nathaniel; Nordlander, Peter; Oden, Maria; Halas, Naomi J. (2013)
      The lack of readily available sterilization processes for medicine and dentistry practices in the developing world is a major risk factor for the propagation of disease. Modern medical facilities in the developed world ...
    • Compact TDLAS based sensor design using interband cascade lasers for mid-IR trace gas sensing 

      Dong, Lei; Tittel, Frank K.; Li, Chunguang; Sanchez, Nancy P.; Wu, Hongpeng; Zheng, Chuantao; Yu, Yajun; Sampaolo, Angelo; Griffin, Robert J. (2016)
      Two compact TDLAS sensor systems based on different structural optical cores were developed. The two optical cores combine two recent developments, gallium antimonide (GaSb)-based ICL and a compact multipass gas cell (MPGC) ...