Now showing items 1267-1286 of 2176

    • Nanoparticles Heat through Light Localization 

      Hogan, Nathaniel J.; Urban, Alexander S.; Ayala-Orozco, Ciceron; Pimpinelli, Alberto; Nordlander, Peter; Halas, Naomi J. (2014)
      Aqueous solutions containing light-absorbing nanoparticles have recently been shown to produce steam at high efficiencies upon solar illumination, even when the temperature of the bulk fluid volume remains far below its ...
    • 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, ...
    • Nanostructure investigations of nonlinear differential conductance in NdNiO3 thin films 

      Hardy, Will J.; Ji, Heng; Mikheev, Evgeny; Stemmer, Susanne; Natelson, Douglas (2014)
      Transport measurements on thin films of NdNiO3 reveal a crossover to a regime of pronounced nonlinear conduction below the well-known metal-insulator transition temperature. The evolution of the transport properties at ...
    • A Nanostructured Synthetic Collagen Mimic for Hemostasis 

      Kumar, Vivek A.; Taylor, Nichole L.; Jalan, Abhishek A.; Hwang, Lyahn K.; Wang, Benjamin K.; Hartgerink, Jeffrey D. (2014)
      Collagen is a major component of the extracellular matrix and plays a wide variety of important roles in blood clotting, healing, and tissue remodeling. Natural, animal derived, collagen is used in many clinical applications ...
    • Nanowire electrodes for high-density stimulation and measurement of neural circuits 

      Robinson, Jacob T.; Jorgolli, Marsela; Park, Hongkun (3/12/2013)
      Brain-machine interfaces (BMIs) that can precisely monitor and control neural activity will likely require new hardware with improved resolution and specificity. New nanofabricated electrodes with feature sizes and densities ...
    • 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 ...
    • ncDNA and drift drive binding site accumulation 

      Ruths, Troy; Nakhleh, Luay (2012)
      Background: The amount of transcription factor binding sites (TFBS) in an organism's genome positively correlates with the complexity of the regulatory network of the organism. However, the manner by which TFBS arise ...
    • Near Best Tree Approximation 

      Baraniuk, Richard G.; DeVore, Ronald A.; Kyriazis, George; Yu, Xiang Ming (2002-01-15)
      Tree approximation is a form of nonlinear wavelet approximation that appears naturally in applications such as image compression and entropy encoding. The distinction between tree approximation and the more familiar ...
    • Near-Far Resistant Code Synchronization For CDMA systems - An Implementation Perspective 

      Haller, Bruno; Cavallaro, Joseph R.; Aazhang, Behnaam (1996-04-20)
      In this paper we evaluate and compare several algorithms based on eigenanalysis techniques for near-far resistant code acquisition and tracking, i.e., delay estimation in multiuser CDMA communication systems under different ...
    • Near-field mapping of three-dimensional surface charge poles for hybridized plasmon modes 

      Huang, Yu; Ringe, Emilie; Hou, Mengjing; Ma, Lingwei; Zhang, Zhengjun (2015)
      We describe a new computational approach to mapping three-dimensional (3D) surface charge poles and thus to determine complicated and hybridized plasmon modes in metallic nanostructures via finite element method (FEM) ...
    • Needle-based fluorescence endomicroscopy via structured illumination with a plastic, achromatic objective 

      Kyrish, Matthew; Dobbs, Jessica; Jain, Shalini; Wang, Xiao; Yu, Dihua; Richards-Kortum, Rebecca; Tkaczyk, Tomasz S. (2013-09)
      In order to diagnose cancer, a sample must be removed, prepared, and examined under a microscope, which is expensive, invasive, and time consuming. Fiber optic fluorescence endomicroscopy, where an image guide is used to ...
    • 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 ...
    • Net greenhouse gas emissions savings from natural gas substitutions in vehicles, furnaces, and power plants 

      Cohan, Daniel S.; Sengupta, Shayak (2016)
      We compare the net greenhouse gas emissions impact of substituting natural gas for other fossil fuels for five purposes: light-duty vehicles, transit buses, residential heating, electricity generation, and export for ...
    • Network and User Driven Alpha-Beta Onâ Off Source Model for Network Traffic 

      Sarvotham, Shriram; Riedi, Rudolf H.; Baraniuk, Richard G. (2005-06-01)
      We shed light on the effect of network resources and user behavior on network traffic through a physically motivated model. The classical onâ off model successfully captures the long-range, second-order correlations of ...
    • Network Channel Estimation in Cooperative Wireless Networks 

      Khoshnevis, Ahmad; Sabharwal, Ashutosh (2003-05-20)
      In distributed wireless networks, where nodes actively participate in helping communication for other nodes, they are typically unaware of their neighourhood and hence have to "estimate" it before sending any useful data. ...
    • Network Loss Inference Using Unicast End-to-End Measurement 

      Coates, Mark J.; Nowak, Robert David (2000-09-20)
      The fundamental objective of this work is to determine the extent to which unicast, end-to-end network measurement is capable of determining internal network losses. The major contributions of this paper are two-fold: we ...
    • 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 ...
    • Network Traffic Modeling using a Multifractal Wavelet Model 

      Riedi, Rudolf H.; Crouse, Matthew; Ribeiro, Vinay Joseph; Baraniuk, Richard G. (1999-02-01)
      In this paper, we describe a new multiscale model for characterizing positive-valued and long-range dependent data. The model uses the Haar wavelet transform and puts a constraint on the wavelet coefficients to guarantee ...
    • Network Traffic Modeling using a Multifractal Wavelet Model 

      Riedi, Rudolf H.; Ribeiro, Vinay Joseph; Crouse, Matthew; Baraniuk, Richard G. (2000-07-01)
      In this paper, we develop a simple and powerful multiscale model for syntheizing nonFaussian, long-range dependent (LRD) network traffic. Although wavelets effectively decorrelate LRD data, wavelet-based models have generally ...
    • Neural Networks of Colored Sequence Synesthesia 

      Tomson, Steffie N.; Narayan, Manjari; Allen, Genevera I.; Eagleman, David M. (2013-08-28)
      Synesthesia is a condition in which normal stimuli can trigger anomalous associations. In this study,weexploit synesthesia to understand how the synesthetic experience can be explained by subtle changes in network properties. ...