Now showing items 358-377 of 597

    • Nanoscale studies of CVD graphene and poly(3-hexylthiophene) thin films. 

      Rai, Chaitra (2014-04-21)
      Transparent solar cell systems have garnered a great deal of attention as possible alternatives to silicon-based solar cells. While conventional silicon-based solar cells absorb solar energy in limited frequency ranges, ...
    • Narrowband Photodetection in the Short-wavelength Infrared with a Plasmon-induced Hot Electron Device 

      Sobhanikhakestar, Ali (2014-04-21)
      In gratings, incident light can couple strongly to plasmons propagating through periodically spaced slits in a metal film, resulting in a strong, resonant absorption whose frequency is determined by the nanostructure ...
    • Nested QoS: Providing flexible SLAs in shared storage systems 

      Wang, Hui (2012)
      The increasing popularity of storage and server consolidation introduces new challenges for resource management, capacity provisioning, and application performance guaranteeing. In addition, the bursty nature of storage ...
    • Network tomography in theory and practice 

      Tsang, Yau-Yau Yolanda (2005)
      Network tomography has recently emerged as a promising method for indirectly inferring network state information from end-to-end measurements. In this thesis, I present novel methodologies for several challenging network ...
    • New approaches to modeling multi-port scattering parameters 

      Lefteriu, Sanda (2009)
      This work addresses the problem of building a macromodel from frequency response measurements by means of a stable and passive linear dynamical system in state-space representation. The proposed algorithms are based on a ...
    • New Metrics on Image Articulation Manifolds Using Optical Flow 

      Nagaraj, Sriram (2011)
      Image articulation manifolds (IAMs) arise in a wide variety of contexts in image processing and computer vision applications. IAMs are a natural nonlinear model for image ensembles generated by the variation of imaging ...
    • New techniques for digital filter design 

      Selesnick, Ivan William (1996)
      Several new techniques for open problems in the frequency domain design of FIR and IIR digital filters, both iterative and analytic, are presented. This thesis begins by putting forth the notion that explicitly specified ...
    • Noise suppression and motion estimation in medical ultrasound imaging 

      Yue, Yong (2007)
      Echocardiographic imaging is a primary modality in the diagnosis of heart disease. Compared to other imaging techniques, such as X-Ray, MRI, and PET, ultrasound imaging owes its great popularity to the fact that it is a ...
    • Non-coherent and partially coherent space-time constellations 

      Borran, Mohammed Jaber (2004)
      With the rapid growth of wireless networks and multimedia applications, next generation cellular systems are expected to support data rates that are orders of magnitude higher than those currently available. Due to the ...
    • Non-Gaussian Markov time series 

      Rao, Srinivasa Patibandla (1988)
      Time series are often modeled as filtered versions of white noise, the filter being linear. We study non-Gaussian processes by modeling them similarly, but allowing the possibility of the filter being non-linear. These ...
    • Non-invasive IC tomography using spatial correlations 

      Shamsi, Davood (2010)
      We introduce a new methodology for post-silicon characterization of the gate-level variations in a manufactured Integrated Circuit (IC). The estimated characteristics are based on the power and the delay measurements that ...
    • Noncoherent image denoising 

      Hua, Gang (2005)
      The techniques of Translation Invariant (TI) denoising and statistical modeling are widely used in image denoising. This thesis studies how these techniques exploit location information in images and identifies a class of ...
    • Nonlinear neural codes 

      Yang, Qianli (2015-12-03)
      Most natural task-relevant variables are encoded in the early sensory cortex in a form that can only be decoded nonlinearly. Yet despite being a core function of the brain, nonlinear population codes are rarely studied and ...
    • Nonlinear Signal Models: Geometry, Algorithms, and Analysis 

      Hegde, Chinmay (2013-07-24)
      Traditional signal processing systems, based on linear modeling principles, face a stifling pressure to meet present-day demands caused by the deluge of data generated, transmitted and processed across the globe. Fortunately, ...
    • Nonparametric prediction of mixing time series 

      Lee, Yuan Kang (1992)
      Prediction of future time-series values, based on a finite set of available observations, is a prevalent problem in many branches of science and engineering. By making the assumption that the time series is either Gaussian ...
    • Nonresonant surface enhanced Raman optical activity 

      Brinson, Bruce E. (2009)
      Nanoshells (NS) and nanoparticles (NP) are tunable plasmonic particles that can be precisely engineered for specific applications including surface enhanced spectroscopies. A new, general method for the synthesis of ...
    • Novel dual-threshold voltage FinFETs for circuit design and optimization 

      Rostami, Masoud (2011)
      A great research effort has been invested on finding alternatives to CMOS that have better process variation and subthreshold leakage. From possible candidates, FinFET is the most compatible with respect to CMOS and it has ...
    • Novel laser-based gas sensors for trace gas detection in a spacecraft habitat 

      Leleux, Darrin Paul (2002)
      The principal objective of this research has been the development of advanced data reduction techniques and their application to real-time detection and precise concentration measurement of trace gases for use in spacecraft ...
    • Novel symmetric and asymmetric plasmonic nanostructures 

      Mirin, Nikolay A. (2010)
      Metal-dielectric nanostructures capable of supporting electromagnetic resonances at optical frequencies are the vital component of the emerging technology called plasmonics. Plasmon is the electromagnetic wave confined at ...