From pervasive computing, to smart power systems, Virginia Tech ECE faculty and students delve into all major areas of electrical and computer engineering. The main campus is in Blacksburg, and the department has additional research and teaching facilities in Arlington, Falls Church, and Hampton, Virginia.

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  • Endothelial cell sensing, restructuring, and invasion in collagen hydrogel structures 

    Hosseini, Yahya; Agah, Masoud; Verbridge, Scott S. (The Royal Society of Chemistry, 2015-09-03)
    Experimental tools to model cell-tissue interactions will likely lead to new ways to both understand and treat cancer. While the mechanical properties and regulation of invasion have been recently studied for tumor cells, ...
  • The impact of sphingosine kinase inhibitor-loaded nanoparticles on bioelectrical and biomechanical properties of cancer cells 

    Babahosseini, Hesam; Srinivasaraghavan, Vaishnavi; Zhao, Zongmin; Gillam, Frank; Childress, Elizabeth; Strobl, Jeannine S.; Santos, Webster L.; Zhang, Chenming; Agah, Masoud (The Royal Society of Chemistry, 2015-11-19)
    Cancer progression and physiological changes within the cells are accompanied by alterations in the biophysical properties. Therefore, the cell biophysical properties can serve as promising markers for cancer detection and ...
  • GC-on-chip: integrated column and photoionization detector 

    Akbar, Muhammad; Shakeel, Hamza; Agah, Masoud (The Royal Society of Chemistry, 2015-02-04)
    This paper reports a unique GC-on-chip module comprising a monolithically integrated semi-packed micro separation column (μSC) and a highly sensitive micro helium discharge photoionization detector (μDPID). While semi-packed ...
  • Transcriptome-wide functional characterization reveals novel relationships among differentially expressed transcripts in developing soybean embryos 

    Aghamirzaie, Delasa; Batra, Dhruv; Heath, Lenwood S; Schneider, Andrew; Grene, Ruth; Collakova, Eva (2015-11-14)
    Abstract Background Transcriptomics reveals the existence of transcripts of different coding potential and strand orientation. Alternative splicing (AS) can yield proteins ...
  • Knowledge-fused differential dependency network models for detecting significant rewiring in biological networks 

    Tian, Ye; Zhang, Bai; Hoffman, Eric P; Clarke, Robert; Zhang, Zhen; Shih, Ie-Ming; Xuan, Jianhua; Herrington, David M; Wang, Yue (2014-07-24)
    Modeling biological networks serves as both a major goal and an effective tool of systems biology in studying mechanisms that orchestrate the activities of gene products in cells. Biological networks are context-specific ...
  • High-frequency irreversible electroporation (H-FIRE) for non-thermal ablation without muscle contraction 

    Arena, Christopher B; Sano, Michael B.; Rossmeisl, John H.; Caldwell, John L; Garcia, Paulo A.; Rylander, Marissa N; Davalos, Rafael V. (2011-11-21)
    Abstract Background Therapeutic irreversible electroporation (IRE) is an emerging technology for the non-thermal ablation of tumors. The technique involves delivering a series of unipolar electric pulses to permanently ...
  • SIMAT: GC-SIM-MS data analysis tool 

    Nezami Ranjbar, Mohammad R; Poto, Cristina D; Wang, Yue; Ressom, Habtom W (2015-08-19)
    Abstract Background Gas chromatography coupled with mass spectrometry (GC-MS) is one of the technologies widely used for qualitative and quantitative analysis of small molecules. In particular, GC coupled to single quadrupole ...
  • Acoustic X-wave reflection and transmission at a planar interface: Spectral analysis 

    Shaarawi, Amr M.; Besieris, Ioannis M.; Attiya, Ahmed M.; El-Diwany, Essam (Acoustical Society of America, 2000-01-01)
    The spectral structure of a three-dimensional X-wave pulse incident on a planar surface of discontinuity is examined. Introducing a novel superposition of azimuthally dependent pulsed plane waves, it is shown for oblique ...
  • A transport-theoretic analysis of pulse propagation through ocean sediments 

    Besieris, Ioannis M.; Kohler, Werner E.; Freese, Herbert (Acoustical Society of America, 1982-09-01)
    The reflection of pulsed acoustic plane waves from ocean sedimentary layers is studied using a stochastic transport theory originally introduced by Barabanenkov et. al. [Izv. Vyssh. Uchebn. Zaved., Radiofiz 15, 1852 (1972)]. ...
  • Active suppression of acoustic radiation from impulsively excited structures 

    Baumann, William T.; Saunders, William R.; Robertshaw, Harry H. (Acoustical Society of America, 1991-12-01)
    The objective is to use active control to suppress the acoustic energy that is radiated to the far field from a structure that has been excited by a short-duration pulse. The problem is constrained by the assumption that ...
  • A Markov process model of ocean sediments 

    Sockell, Michael; Besieris, Ioannis M.; Kohler, Werner E.; Freese, Herbert (Acoustical Society of America, 1985-01-01)
    Monochromatic plane-wave illumination of a randomly stratified, laterally homogeneous sediment layer is considered. The deposition process creating the stochastic layering is assumed to be a continuous parameter, finite ...
  • Aperture synthesis of time-limited X waves and analysis of their propagation characteristics 

    Chatzipetros, Argyrios A.; Shaarawi, Amr M.; Besieris, Ioannis M.; Abdel-Rahman, Mohamed A. (Acoustical Society of America, 1998-05-01)
    The feasibility of exciting a localized X-wave pulse from a finite aperture is addressed. Also, the possibility of using a finite-time excitation of a dynamic aperture to generate a finite-energy approximation to an X-wave ...
  • Characterization of a nonrigid sphere using the backscattered fields of acoustic X waves 

    Moawad, Maged F.; Shaarawi, Amr M.; Besieris, Ioannis M. (Acoustical Society of America, 2004-06-01)
    The scattering of acoustic ultra-wideband X-wave pulses by a nonrigid sphere is simulated for purposes of material identification and characterization. Using the backscattered spectrum of the X-wave pulses, a procedure is ...
  • Microbend loss fiber optic direction and amplitude sensors for underwater applications 

    Vengsarkar, Ashish M.; Murphy, Kent A.; Tran, Tuan A.; Claus, Richard O. (Acoustical Society of America, 1990-07-01)
    Dual purpose fiber optic microbend loss sensors have been developed for measurement of underwater acousticwave amplitudes and for detection of the direction of wave propagation. Three different construction schemes for ...
  • Gaussian decomposition of beams and other functions 

    Dewolf, David A. (American Institute of Physics, 1989-06-15)
    The Gabor expansion of a function f_(x) decomposes it into a double sum over integers m and n of a product of basis functions g(x_m X) and Fourier_series exponentials exp(2πi n/X) for given spacing X. The choice of basis ...
  • Computer simulation of electron beams. I. Space charge algorithm for asymmetric beams 

    Dewolf, David A. (American Institute of Physics, 1985)
    Longitudinal space_charge forces can be neglected in computer simulations of slowly curving quasilaminar electron beams. A particle mesh type algorithm for transverse space charge forces is developed, and great simplification ...
  • Single-thermal-source formation of Zn x Cd1-x S thin films 

    Burton, Larry C.; Hench, T. L.; Meakin, J. D. (American Institute of Physics, 1979)
    Thermal sublimation of atomically homogeneous Zn x Cd1_x S powders from a single source results in films that are nonuniform in a direction normal to the substrate. This is attributed to initial preferential sublimation ...
  • Computer simulation of electron beams. II. Low cost beam current reconstruction 

    Dewolf, David A. (American Institute of Physics, 1985)
    Reconstruction of current density in electron beams is complicated by distortion of phase space which can require very fine discretization of the beam into trajectories. An efficient discretization of phase space is ...
  • Localized energy pulse trains launched from an open, semi-infinite, circular waveguide 

    Shaarawi, Amr M.; Besieris, Ioannis M.; Ziolkowski, R. W. (American Institute of Physics, 1989-01-15)
    A new decomposition of exact solutions to the scalar wave equation into bidirectional, backward and forward traveling plane waves is described. These elementary blocks constitute a natural basis for synthesizing Brittinghamlike ...
  • Compositional depth profiles of chemiplated Cu2S/(Zn,Cd)S heterojunction solar cells 

    Uppal, P. N.; Burton, Larry C.; Rivaud, L.; Greene, J. E. (American Institute of Physics, 1983)
    Atomic absorption spectroscopy combined with controlled chemical etching and Auger electron spectroscopy profiling with ion beametching have been used to obtain composition versus depth analyses of Cu2S/(Zn,Cd)S ...

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