Recent Submissions

  • Accurate characterization of winter precipitation using multi-angle snowflake camera, visual hull, advanced scattering methods and polarimetric radar 

    Contributor:Notaroš, Branislav M.; Bringi, Viswanathan N.; Kleinkort, Cameron; Kennedy, Patrick; Huang, Gwo-Jong; Thurai, Merhala; Newman, Andrew J.; Bang, Wonbae; Lee, GyuWon
    Date Issued:2016-06-11
    This article proposes and presents a novel approach to the characterization of winter precipitation and modeling of radar observables through a synergistic use of advanced optical disdrometers for microphysical and geometrical ...
  • A study of cloud classification with neural networks using spectral and textural features 

    Contributor:Bian, Bin; Shaikh, Mukhtiar A.; Azimi-Sadjadi, Mahmood R.; Vonder Haar, Thomas H.; Reinke, Donald L.
    Date:1999
    The problem of cloud data classification from satellite imagery using neural networks is considered in this paper. Several image transformations such as singular value decomposition(SVD) and wavelet packet (WP) were used ...
  • Real-time SVD for the control of redundant robotic manipulators 

    Contributor:Maciejewski, Anthony A.
    Date:1989
    By taking advantage of the well-behaved nature of singular values and vectors, the computational expense of determining the SVD of the Jacobian matrix can be reduced to such an extent that on-line calculation becomes ...
  • Identifying the failure-tolerant workspace boundaries of a kinematically redundant manipulator 

    Contributor:Roberts, Rodney G.; Jamisola, Rodrigo S.; Maciejewski, Anthony A.
    Date:2007
    In addition to possessing a number of other important properties, kinematically redundant manipulators are inherently more tolerant to locked-joint failures than nonredundant manipulators. However, a joint failure can still ...
  • Analysis of eigendecomposition for sets of correlated images at different resolutions 

    Contributor:Saitwal, Kishor; Maciejewski, Anthony A.; Roberts, Rodney G.
    Date:2004
    Eigendecomposition is a common technique that is performed on sets of correlated images in a number of computer vision and robotics applications. Unfortunately, the computation of an eigendecomposition can become prohibitively ...
  • The effect of spatial resolution reduction techniques on the temporal properties of video sequences 

    Contributor:Saitwal, Kishor; Maciejewski, Anthony A.; Roberts, Rodney G.
    Date:2005
    Singular value decomposition (SVD) is a common technique that is performed on video sequences in a number of computer vision and robotics applications. The left singular vectors represent the eigenimages, while the right ...
  • Failure-tolerant path planning for the PA-10 robot operating amongst obstacles 

    Contributor:Jamisola, Rodrigo S.; Maciejewski, Anthony A.; Roberts, Rodney G.
    Date:2004
    This work considers kinematic failure tolerance when obstacles are present in the environment. An example is given using a fully spatial redundant robot, the seven degree-of-freedom Mitsubishi PA-10. This article addresses ...
  • Fast eigenspace decomposition of correlated images using their low-resolution properties 

    Contributor:Saitwal, Kishor; Maciejewski, Anthony A.; Roberts, Rodney G.
    Date:2004
    Eigendecomposition is a common technique that is performed on sets of correlated images in a number of computer vision and robotics applications. Unfortunately, the computation of an eigendecomposition can become prohibitively ...
  • A simulation of attempts to influence crowd dynamics 

    Contributor:Kirkland, Joel A.; Maciejewski, Anthony A.
    Date:2003
    An understanding of how to alter crowd dynamics would have a significant impact in a number of scenarios, e.g., during riots or evacuations. The social force model, where individuals are self-driven particles interacting ...
  • Using genetic algorithms to optimize social robot behavior for improved pedestrian flow 

    Contributor:Eldridge, Bryce D.; Maciejewski, Anthony A.
    Date:2005
    This paper expands on previous research on the effect of introducing social robots into crowded situations in order to improve pedestrian flow. In this case, a genetic algorithm is applied to find the optimal parameters ...
  • Eigendecomposition of correlated images characterized by three parameters 

    Contributor:Saitwal, Kishor; Maciejewski, Anthony A.; Roberts, Rodney G.
    Date:2006
    Most eigendecomposition algorithms operate on correlated images that are characterized by only one parameter. Hence they lack the required specifications of fully general 3D image data sets, in which the images need to be ...
  • A path planning strategy for kinematically redundant manipulators anticipating joint failures in the presence of obstacles 

    Contributor:Jamisola, Rodrigo S.; Maciejewski, Anthony A.; Roberts, Rodney G.
    Date:2003
    This work considers the failure tolerant operation of a kinematically redundant manipulator in an environment containing obstacles. In particular, the article addresses the problem of planning a collision-free path for a ...
  • Dense capillary discharge plasma waveguide containing Ag ions 

    Contributor:Wang, Yanting; Luther, Bradley M.; Pedaci, Francesco; Berrill, Mark Allen; Brizuela, Fernando; Marconi, Mario Carlos; Larotonda, M. A.; Shlyaptsev, Vyacheslav N.; Rocca, Jorge, J.
    Date:2005
    Interferometry of plasmas generated by fast discharge excitation of Ag2S microcapillary channels shows the formation of dense plasma waveguides capable of guiding intense laser beams. Discharge ablation of capillaries, 330 ...
  • Shadowgrams of a dense micro-capillary plasma obtained with a table-top soft X-ray laser 

    Contributor:Moreno, C. H.; Marconi, Mario Carlos; Shlyaptsev, Vyacheslav N.; Rocca, Jorge J.
    Date:1999
    A sequence of high resolution shadowgrams that map the evolution of the plasma of a 380 μm diameter microcapillary discharge was obtained using a very compact 46.9 nm laser. These images are the first plasma diagnostics ...
  • Discharge-driven 46.9-nm amplifier with gain-length approaching saturation 

    Contributor:Rocca, Jorge J.; Marconi, Mario Carlos; Chilla, J. L. A.; Clark, D. P.; Tomasel, F. G.; Shlyaptsev, Vyacheslav N.
    Date:1995
    Gain length products up to gl ≈ 14 for the J = 0-1 line of Ne-like Ar at 46.9 nm have been achieved in 15-cm long plasma columns generated by a fast capillary discharge. Amplification in plasma columns up to 20 cm in length ...
  • Table-top soft X-ray laser interferograms of dense laser-created plasma 

    Contributor:Jankowska, E.; Hammarsten, E. C.; Filevich, Jorge; Marconi, Mario Carlos; Rocca, Jorge J.
    Date:2002
    We report soft X-ray interferograms that illustrate the use of a very compact table-top soft X-ray laser in mapping the electron density evolution of a dense plasma. The spatial density distribution of a point-focus ...
  • Highly ionized Ar plasma waveguides generated by a fast capillary discharge 

    Contributor:Luther, Bradley M.; Wang, Yanting; Berrill, Mark Allen; Alessi, David Alan; Marconi, Mario Carlos; Larotonda, M. A.; Rocca, Jorge J.
    Date:2005
    Highly ionized Ar plasma channels were created by a fast capillary discharge and used to guide laser pulses with peak intensities up to 2.2 × 1017 W/cm2 over a 5.5-cm distance. These plasmas are of interest for the generation ...
  • Characteristics of a saturated 18.9-nm tabletop laser operating at 5-Hz repetition rate 

    Contributor:Larotonda, M. A.; Luther, Bradley M.; Wang, Yanting; Liu, Y.; Alessi, David Alan; Berrill, Mark Allen; Dummer, A.; Brizuela, Fernando; Menoni, Carmen S.; Marconi, Mario Carlos; Shlyaptsev, Vyacheslav N.; Dunn, James; Rocca, Jorge J.
    Date:2004
    We report the characteristics of a saturated high-repetition rate Ni-like Mo laser at 18.9 nm. This table-top soft X-ray laser was pumped at a 5-Hz repetition rate by 8-ps 1-J optical laser pulses impinging at grazing ...
  • Application of extremely compact capillary discharge soft x-ray lasers to dense plasma diagnostics 

    Contributor:Rocca, Jorge, J.; Hammarsten, E. C.; Jankowska, E.; Filevich, Jorge; Marconi, Mario Carlos; Moon, Stephen J.; Shlyaptsev, Vyacheslav N.
    Date:2003
    Table-top capillary discharge soft x-ray lasers combine the advantages of a small size and a high repetition rate with an extremely high brightness similar to that of their laboratory-size predecessors. When utilized to ...
  • Electric field distribution in the cathode sheath of an electron beam glow discharge 

    Contributor:Lee, S. A.; Andersen, L.-U. A.; Rocca, Jorge, J.; Marconi, Mario Carlos; Reesor, N. D.
    Date:1987
    We have measured the electric field distribution in the cathode sheath of an electron beam He glow discharge. Laser saturation spectroscopy was used to determine the quadratic Stark shift produced by the electric field. ...

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