Now showing items 396-415 of 506

    • RapidRadio: A Domain-Specific Productivity Enhancing Framework 

      Surís, Jorge A.; Recio, Adolfo; Athanas, Peter (Hindawi, 2011-02-14)
      The RapidRadio framework for signalclassification and receiver deployment is discussed. The frameworkis a productivity enhancing tool that reduces the requiredknowledge-base for implementing a receiver on an FPGA-basedSDR ...
    • Rayleigh-Ritz Optimization Of The Structure-Function For A Kolmogorov Power-Density And an Approximate Analytical Solution For The 2-Point Electric-Field Correlation-Function 

      Chatterjee, M. R.; Quinn, L. H.; Banerjee, P. P.; Poon, Ting-Chung (Optical Society of America, 1989-04-01)
      Beginning with the exact Kolmogorov power spectrum for an extended random medium (such as interstellar space), the structure function is first expressed as an inverse Fourier-Bessel transform. An approximate series ...
    • Reactive ion etching of lead zirconate titanate and ruthenium oxide thin films 

      Electrical and Computer Engineering; Materials Science and Engineering (MSE); Cedraeus Incorporated; Virginia Tech Intellectual Properties, Inc.; Sharp Kabushiki Kaisha; Desu, Seshu B.; Pan, Wei; Vijay, Dilip P. (United States Patent and Trademark Office, 1996-03-05)
      A method of reactive ion etching both a lead zirconate titanate ferroelectric dielectric and a RuO.sub.2 electrode, and a semiconductor device produced in accordance with such process. The dielectric and electrode are ...
    • Real-time prediction of patient immune cell modulation during irreversible electroporation therapy 

      Beitel-White, N.; Martin, R. C. G.; Li, Y.; Brock, R. M.; Allen, Irving C.; Davalos, R. V. (2019-11-28)
      Immunotherapies have demonstrated limited efficacy in pancreatic ductal adenocarcinoma (PDAC) patients despite their success in treating other tumor types. This limitation is largely due to the relatively immunosuppressive ...
    • Real-time relighting of digital holograms based on wavefront recording plane method 

      Tsang, Peter Wai Ming; Cheung, K. W. K.; Poon, Ting-Chung (Optical Society of America, 2012-03-01)
      Relighting is an important technique in photography which enables the optical properties of a picture to be modified without retaking it again. However, different from an optical image, a digital hologram cannot be relit ...
    • A realistic radar data simulator for the Super Dual Auroral Radar Network 

      Ribeiro, A. J.; Ponomarenko, P. V.; Ruohoniemi, J. Michael; Baker, Joseph B. H.; Clausen, Lasse B. N.; Greenwald, R. A.; de Larquier, S. (American Geophysical Union, 2013-05-01)
      The Super Dual Auroral Radar Network (SuperDARN) is a chain of HF radars for monitoring plasma flows in the high and middle latitude E and F regions of the ionosphere. The targets of SuperDARN radars are plasma irregularities ...
    • Reconstruction of Gene Regulatory Modules in Cancer Cell Cycle by Multi-Source Data Integration 

      Zhang, Yuji; Xuan, Jianhua; de los Reyes, Benildo G.; Clarke, Robert; Ressom, Habtom W. (PLOS, 2010-04-21)
      Background Precise regulation of the cell cycle is crucial to the growth and development of all organisms. Understanding the regulatory mechanism of the cell cycle is crucial to unraveling many complicated diseases, ...
    • Reconstruction Of Sectional Images in Holography Using Inverse Imaging 

      Zhang, X.; Lam, Edmund Y.; Poon, Ting-Chung (Optical Society of America, 2008-01-01)
      This paper discusses the reconstruction of sectional images from a hologram generated by optical scanning holography. We present a mathematical model for the holographic image capture, which facilitates the use of inverse ...
    • Recursive Motif Analyses Identify Brain Epigenetic Transcription Regulatory Modules 

      Banerjee, Sharmi; Wei, Xiaoran; Xie, Hehuang (Elsevier, 2019-04-09)
      DNA methylation is an epigenetic modification modulating the structure of DNA molecule and the interactions with its binding proteins. Accumulating large-scale methylation data motivates the development of analytic tools ...
    • Reduced erbium-doped ceria nanoparticles: one nano-host applicable for simultaneous optical down- and up-conversions 

      Shehata, Nader; Meehan, Kathleen; Hassounah, Ibrahim; Hudait, Mantu; Jain, Nikhil; Clavel, Michael; Elhelw, Sarah; Madi, Nabil (Springer, 2014-05-13)
      This paper introduces a new synthesis procedure to form erbium-doped ceria nanoparticles (EDC NPs) that can act as an optical medium for both up-conversion and down-conversion in the same time. This synthesis process results ...
    • Region-based progressive localization of cell nuclei in microscopic images with data adaptive modeling 

      Song, Yang; Cai, Weidong; Huang, Heng; Wang, Yue; Feng, David D; Chen, Mei (2013-06-02)
      Background Segmenting cell nuclei in microscopic images has become one of the most important routines in modern biological applications. With the vast amount of data, automatic localization, i.e. detection and segmentation, ...
    • Reimagining Human Capacity For Location-Aware Aural Pattern Recognition: A Case For Immersive Exocentric Sonification 

      Bukvic, Ivica Ico; Earle, Gregory D. (Georgia Institute of Technology, 2018-06)
      The following paper presents a cross-disciplinary snapshot of 21st century research in sonification and leverages the review to identify a new immersive exocentric approach to studying human capacity to perceive spatial ...
    • Relationship between sawtooth events and magnetic storms 

      Cai, Xia; Zhang, J. C.; Clauer, C. R.; Liemohn, M. W. (American Geophysical Union, 2011-07-01)
      The relationship between sawtooth events and magnetospheric substorms has been discussed extensively. However, the relationship between sawtooth events and magnetic storms has not been systematically examined. Using the ...
    • Resiliency of Distribution Systems Incorporating Asynchronous Information for System Restoration 

      Bedyao, Juan C.; Xie, Jing; Wang, Yubo; Zhang, Xi; Liu, Chen-Ching (IEEE, 2019)
      Resiliency of distribution systems under extreme operating conditions is critical, especially when the utility is not available. With the large-scale deployment of distributed resources, it becomes possible to restore ...
    • Resistive volatile/non-volatile floating electrode logic/memory cell 

      Bradley Department of Electrical and Computer Engineering; Virginia Tech Patents; Virginia Tech Intellectual Properties, Inc.; Liu, Tong; Orlowski, Marius K.; Verma, Mohini; Kang, Yuhong (United States Patent and Trademark Office, 2017-10-17)
      A resistive floating electrode device (RFED) provides a logic cell or non-volatile storage or dynamic or static random access memory on an extremely compact matrix with individual cells scalable to the minimum available ...
    • Resolution-Dependent Depth Of Focus For an Incoherent Imaging-System 

      Pieper, Ronald J.; Park, Jinwoo; Poon, Ting-Chung (Optical Society of America, 1988-11-01)
      Through the application of the Rayleigh criterion for a two-point resolution, the dependence of the depth of focus on the resolution in the image is determined for a rectangular, a Gaussian, and an annular lens aperture. ...
    • Retinal-input-induced epigenetic dynamics in the developing mouse dorsal lateral geniculate nucleus 

      He, Jianlin; Xu, Xiguang; Monavarfeshani, Aboozar; Banerjee, Sharmi; Fox, Michael A.; Xie, Hehuang (2019-02-14)
      Abstract DNA methylation plays important roles in the regulation of nervous system development and in cellular responses to environmental stimuli such as light-derived signals. Despite great efforts in ...
    • Reverse convection potential saturation during northward IMF under various driving conditions 

      Wilder, F. D.; Clauer, C. R.; Baker, Joseph B. H. (American Geophysical Union, 2009-08-01)
      We report the results of an investigation of the reverse convection potentials in the dayside high-latitude ionosphere during periods of steady northward interplanetary magnetic field ( IMF). While it has been demonstrated ...
    • Reverse engineering module networks by PSO-RNN hybrid modeling 

      Zhang, Yuji; Xuan, Jianhua; de los Reyes, Benildo G.; Clarke, Robert; Ressom, Habtom W. (2009-07-07)
      Background Inferring a gene regulatory network (GRN) from high throughput biological data is often an under-determined problem and is a challenging task due to the following reasons: (1) thousands of genes are involved ...
    • Review of the accomplishments of mid-latitude Super Dual Auroral Radar Network (SuperDARN) HF radars 

      Nishitani, Nozomu; Ruohoniemi, John M.; Lester, Mark; Baker, Joseph B. H.; Koustov, Alexandre V.; Shepherd, Simon G.; Chisham, Gareth; Hori, Tomoaki; Thomas, Evan G.; Makarevich, Roman A.; Marchaudon, Aurélie; Ponomarenko, Pavlo; Wild, James A.; Milan, Stephen E.; Bristow, William A.; Devlin, John; Miller, Ethan; Greenwald, Raymond A.; Ogawa, Tadahiko; Kikuchi, Takashi (2019-03-18)
      The Super Dual Auroral Radar Network (SuperDARN) is a network of high-frequency (HF) radars located in the high- and mid-latitude regions of both hemispheres that is operated under international cooperation. The network ...