Now showing items 1138-1157 of 2239

    • Maximum Likelihood Multipath Channel Parameter Estimation in CDMA Systems Using Antenna Arrays 

      Sengupta, Chaitali; Cavallaro, Joseph R.; Aazhang, Behnaam (1998-09-20)
      The problem addressed in this paper is the estimation of the chan-nel parameters in a Code Division Multiple Access (CDMA) communication system, in the presence of multipath effects and multiple sensors at the base station ...
    • Maximum Weight Basis Decoding of Convolutional Codes 

      Das, Suman; Erkip, Elza; Cavallaro, Joseph R.; Aazhang, Behnaam (2000-06-20)
      The effectiveness of the convolutional code increases with the constraint length of the code. Unfortunately the decoding complexity of Viterbi algorithm grows exponentially with the constraint length. In this paper we ...
    • Maximum Weight Basis Decoding of Convolutional Codes 

      Das, Suman; Erkip, Elza; Cavallaro, Joseph R.; Aazhang, Behnaam (2002-11-01)
      In this paper we describe a new suboptimal decoding technique for linear codes based on the calculation of maximum weight basis of the code. The idea is based on estimating the maximum number locations in a codeword which ...
    • A Maxwell’s fish eye lens for the terahertz region 

      Liu, Jingbo; Mendis, Rajind; Mittleman, Daniel M. (2013-07-15)
      We implement a two-dimensional Maxwell’s fish eye lens using a waveguide-based artificial dielectric. The Maxwell’s fish eye lens consists of two metallic cylindrical plates sandwiching a free-space region, with the inner ...
    • Measurement Driven Deployment of a Two-Tier Urban Mesh Access Network 

      Camp, Joseph; Robinson, Joshua; Steger, Christopher; Knightly, Edward (2006-06-01)
      Multihop wireless mesh networks can provide Internet access over a wide area with minimal infrastructure expenditure. In this work, we present a measurement driven deployment strategy and a data-driven model to study the ...
    • Measurement driven deployment of a two-tier urban mesh access network 

      Camp, Joseph D. (2006)
      Multihop wireless mesh networks can provide Internet access over a wide area with minimal infrastructure expenditure. In this work, we investigate key issues involved in deploying such networks including individual link ...
    • Measurement of Filling-Factor-Dependent Magnetophonon Resonances in Graphene Using Raman Spectroscopy 

      Kim, Y.; Poumirol, J. M.; Lombardo, A.; Kalugin, N. G.; Georgiou, T.; Kim, Y. J.; Novoselov, K. S.; Ferrari, A. C.; Kono, J.; Kashuba, O.; Fal’ko, V. I.; Smirnov, D. (2013-05-29)
      We perform polarization-resolved Raman spectroscopy on graphene in magnetic fields up to 45 T. This reveals a filling-factor-dependent, multicomponent anticrossing structure of the Raman G peak, resulting from magnetophonon ...
    • Measurement of mechanical tractions exerted by cells within three-dimensional matrices 

      Legant, Wesley R.; Miller, Jordan S.; Blakely, Brandon L.; Cohen, Daniel M.; Genin, Guy M.; Chen, Christopher S. (2010)
      Quantitative measurements of cell-generated forces have heretofore required that cells be cultured on two-dimensional substrates. We describe a technique to quantitatively measure three-dimensional traction forces exerted ...
    • Measurement-based admission control in integrated-services networks 

      Qiu, Jingyu (1998)
      To satisfy the quality of service requirements of real-time multimedia applications, networks must employ resource reservation and admission control. In this paper, we describe a new Measurement-Based Admission Control ...
    • Measurements vs. Bits: Compressed Sensing meets Information Theory 

      Sarvotham, Shriram; Baron, Dror; Baraniuk, Richard G. (2006-09-01)
      Compressed sensing is a new framework for acquiring sparse signals based on the revelation that a small number of linear projections (measurements) of the signal contain enough information for its reconstruction. The ...
    • Measuring Time-Frequency Information and Complexity using the Renyi Entropies 

      Baraniuk, Richard G.; Flandrin, Patrick; Michel, Olivier (1995-09-01)
      In search of a nonparametric indicator of deterministic signal complexity, we link the Renyi entropies to time-frequency representations. The resulting measures show promise in several situations where concepts like the ...
    • Measuring Time-Frequency Information Content using the Renyi Entropies 

      Baraniuk, Richard G.; Flandrin, Patrick; Janssen, A. J. E. M.; Michel, Olivier (2001-05-01)
      The generalized entropies of Renyi inspire new measures for estimating signal information and complexity in the time-frequency plane. When applied to a time-frequency representation (TFR) from Cohen's class or the affine ...
    • Mechanical Activation of a Multimeric Adhesive Protein Through Domain Conformational Change 

      Wijeratne, Sithara S.; Botello, Eric; Yeh, Hui-Chun; Zhou, Zhou; Bergeron, Angela L.; Frey, Eric W.; Patel, Jay M.; Nolasco, Leticia; Turner, Nancy A.; Moake, Joel L.; Dong, Jing-fei; Kiang, Ching-Hwa (2013)
      The mechanical force-induced activation of the adhesive protein von Willebrand factor (VWF), which experiences high hydrodynamic forces, is essential in initiating platelet adhesion. The importance of the mechanical ...
    • Mechanism for Collective Cell Alignment inᅠ Myxococcus xanthus Bacteria 

      Balagam, Rajesh; Igoshin, Oleg A. (2015)
      Myxococcus xanthusᅠcells self-organize into aligned groups, clusters, at various stages of their lifecycle. Formation of these clusters is crucial for the complex dynamic multi-cellular behavior of these bacteria. However, ...
    • Mechanism of Graphene Oxide Formation 

      Dimiev, Ayrat M.; Tour, James M. (2014)
      Despite intensive research, the mechanism of graphene oxide (GO) formation remains unclear. The role of interfacial interactions between solid graphite and the liquid reaction medium, and transport of the oxidizing agent ...
    • Mechanisms of Hearing Loss after Blast Injury to the Ear 

      Cho, Sung-Il; Gao, Simon S.; Xia, Anping; Wang, Rosalie; Salles, Felipe T.; Raphael, Patrick D.; Abaya, Homer; Wachtel, Jacqueline; Baek, Jongmin; Jacobs, David; Rasband, Matthew N.; Oghalai, John S. (2013)
      Given the frequent use of improvised explosive devices (IEDs) around the world, the study of traumatic blast injuries is of increasing interest. The ear is the most common organ affected by blast injury because it is the ...
    • The Mechanistic Basis of Myxococcus xanthus Rippling Behavior and Its Physiological Role during Predation 

      Zhang, Haiyang; Vaksman, Zalman; Litwin, Douglas B.; Shi, Peng; Kaplan, Heidi B.; Igoshin, Oleg A. (2012)
      Myxococcus xanthus cells self-organize into periodic bands of traveling waves, termed ripples, during multicellular fruiting body development and predation on other bacteria. To investigate the mechanistic basis of rippling ...
    • Membrane Cholesterol Strongly Influences Confined Diffusion of Prestin 

      Kamar, R.I.; Organ-Darling, L.E.; Raphael, R.M. (2012-10)
      Prestin is the membrane motor protein that drives outer hair cell (OHC) electromotility, a process that is essential for mammalian hearing. Prestin function is sensitive to membrane cholesterol levels, and numerous studies ...
    • Memory Access Scheduling 

      Rixner, Scott; Dally, William J.; Kapasi, Ujval J.; Mattson, Peter; Owens, John D. (2000-06-20)
      The bandwidth and latency of a memory system are strongly dependent on the manner in which accesses interact with the "3-D" structure of banks, rows, and columns characteristic of contemporary DRAM chips. There is nearly ...
    • Meniscus-Mask Lithography for Fabrication of Narrow Nanowires 

      Abramova, Vera; Slesarev, Alexander S.; Tour, James M. (2015)
      We demonstrate the efficiency of meniscus-mask lithography (MML) for fabrication of precisely positioned nanowires in a variety of materials. Si, SiO2, Au, Cr, W, Ti, TiO2, and Al nanowires are fabricated and characterized. ...