Now showing items 627-646 of 816

    • Scalar evolution equations for shear waves in incompressible solids: a simple derivation of the Z, ZK, KZK and KP equations 

      Destrade, Michel (The Royal Society, 2011-07-08)
      We study the propagation of two-dimensional finite-amplitude shear waves in a nonlinear pre-strained incompressible solid, and derive several asymptotic amplitude equations in a simple, consistent and rigorous manner. The ...
    • Scaling behavior of polymers at liquid/liquid interfaces 

      Cheung, David L. (American Chemical Society, 2015-09-14)
      The dynamics of a polymer chain confined in a soft 2D slit formed by two immiscible liquids is studied by means of molecular dynamics simulations. We show that the scaling behavior of a polymer confined between two liquids ...
    • Sea-spray regulates sulfate cloud droplet activation over oceans 

      Fossum, Kirsten N.; Ovadnevaite, Jurgita; Ceburnis, Darius; Preißler, Jana; Snider, Jefferson R.; Huang, Ru-Jin; Zuend, Andreas; O’Dowd, Colin (Nature Research (part of Springer Nature), 2020-04-08)
      Sulfate aerosols are typically the dominant source of cloud condensation nuclei (CCN) over remote oceans and their abundance is thought to be the dominating factor in determining oceanic cloud brightness. Their activation ...
    • A search for brief optical flashes associated with the SETI target KIC 8462852 

      Gillanders, Gary; Lang, Mark (IOP Publishing, 2016-02-18)
      The F-type star KIC. 8462852 has recently been identified as an exceptional target for search for extraterrestrial intelligence (SETI) observations. We describe an analysis methodology for optical SETI, which we have used ...
    • A search for CO+ in planetary nebulae 

      Redman, Matt P. (2007)
      We have carried out a systematic search for the molecular ion CO+ in a sample of 8 protoplanetary and planetary nebulae in order to determine the origin of the unexpectedly strong HCO+ emission previously detected in these ...
    • A Search for Dark Matter Annihilation with the Whipple 10m Telescope 

      Lang, Mark (2008)
      We present observations of the dwarf galaxies Draco and Ursa Minor, the local group galaxies M32 and M33, and the globular cluster M15 conducted with the Whipple 10m gamma-ray telescope to search for the gamma-ray signature ...
    • A search for optical bursts from RRAT J1819-1458: II. Simultaneous ULTRACAM-Lovell Telescope observations 

      Shearer, Andrew (2011)
      The Rotating RAdio Transient (RRAT) J1819-1458 exhibits ~3 ms bursts in the radio every ~3 min, implying that it is visible for only ~1 per day. Assuming that the optical light behaves in a similar manner, long exposures ...
    • A search for pulsations from Geminga above 100 GeV with VERITAS 

      Connolly, M.P.; Gillanders, Gary; Moriarty, P.; Lang, Mark (American Astronomical Society, 2015-02-10)
      We present the results of 71.6 hr of observations of the Geminga pulsar (PSR J0633+1746) with the VERITAS very-high-energy gamma-ray telescope array. Data taken with VERITAS between 2007 November and 2013 February were ...
    • A Search for Pulsed TeV Gamma Ray Emission from the Crab Pulsar 

      Lang, Mark; Gillanders, Gary; Burdett, A. M.; Bond, I. H.; Boyle, P. J.; Bradbury, S. M.; Buckley, J. H.; Carter-Lewis, D. A.; Catanese, M.; Cawley, M. F.; D'Vali, M.; Fegan, D. J.; Fegan, S. J.; Finley, J. P.; Gaidos, J. A.; Gillanders, G. H.; Hall, T. A.; Hillas, A. M.; Kildea, J.; Knapp, J.; Krennrich, F.; Lang, M. J.; LeBohec, S.; Lessard, R. W.; Masterson, C.; Moriarty, P.; Quinn, J.; Rose, H. J.; Samuelson, F. W.; Sembroski, G. H.; Srinivasan, R.; Vassiliev, V. V.; Weekes, T. C. (1999)
      We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 ...
    • A Search for Pulsed TeV Gamma Ray Emission from the Crab Pulsar 

      Lang, Mark; Gillanders, Gary (1999)
      We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 ...
    • Search for Pulsed TeV Gamma-ray Emission from the Crab Pulsar 

      Lang, Mark; Gillanders, Gary; Lessard, R. W.; Bond, I. H.; Bradbury, S. M.; Buckley, J. H.; Burdett, A. M.; Carter-Lewis, D. A.; Catanese, M.; Cawley, M. F.; D'Vali, M.; Fegan, D. J.; Finley, J. P.; Gaidos, J. A.; Gillanders, G. H.; Hall, T.; Hillas, A. M.; Krennrich, F.; Lang, M. J.; Masterson, C.; Moriarty, P.; Quinn, J.; Rose, H. J.; Samuelson, F. W.; Sembroski, G. H.; Srinivasan, R.; Vassiliev, V. V.; Weekes, T. C. (1999)
      We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10 m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 ...
    • Search for Pulsed TeV Gamma-ray Emission from the Crab Pulsar 

      Lang, Mark; Gillanders, Gary (1999)
      We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10 m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 ...
    • Seismic Rayleigh waves on an exponentially graded, orthotropic half-space 

      Destrade, Michel (The Royal Society, 2007)
      Efforts at modelling the propagation of seismic waves in half-spaces with continuously varying properties have mostly been focused on shear-horizontal waves. Here, a sagittally polarized (Rayleigh type) wave travels along ...
    • Selection shapes synonymous stop codon use in mammals 

      Seoighe, Cathal; Kiniry, Stephen J.; Peters, Andrew; Baranov, Pavel V.; Yang, Haixuan (Springer (part of Springer Nature), 2020-07-02)
      Phylogenetic models of the evolution of protein-coding sequences can provide insights into the selection pressures that have shaped them. In the application of these models synonymous nucleotide substitutions, which do not ...
    • Sensitive and selective quantification of glyphosate and aminomethylphosphonic acid (AMPA) in urine of the general population by gas chromatography-tandem mass spectrometry 

      Connolly, Alison; Koslitz, Stephan; Bury, Daniel; Brüning, Thomas; Conrad, André; Kolossa-Gehring, Marike; Coggins, Marie A.; Koch, Holger M. (Elsevier, 2020-08-26)
      Glyphosate is the highest volume herbicide used worldwide, and its main biodegradation product is aminomethylphosphonic acid (AMPA), both are listed as priority substances in the Human Biomonitoring for Europe initiative ...
    • Setting epidemiological cut-off values for bacteria isolated from aquatic animals: a toolbox for designing a 96-well plate for microdilution MIC assays 

      Baron, Sandrine; Smith, Peter; Verner-Jeffreys, David W. (European Association of Fish Pathologists, 2020-06-02)
      A workshop was held at the EAFP meeting in Porto to initiate discussion on the design of studies that could generate the data needed to set epidemiological cut-off values appropriate for application to antimicrobial ...
    • Shear instability in skin tissue 

      Ciarletta, Pasquale; Destrade, Michel; Gower, Artur L. (Oxford University Press, 2013)
      We propose two toy-models to describe, predict and interpret the wrinkles appearing on the surface of skin when it is sheared. With the first model, we account for the lines of greatest tension present in human skin by ...
    • Simple shear is not so simple 

      Destrade, Michel (2012-03)
      For homogeneous, isotropic, non-linearly elastic materials, the form of the homogeneous deformation consistent with the application of a Cauchy shear stress is derived here for both compressible and incompressible materials. ...
    • Simplified approach to the prediction and analysis of temperature inhomogeneity in rapid compression machines 

      Yousefian, Sajjad; Gauthier, François; Morán-Guerrero, Amadeo; Richardson, Robert R.; Curran, Henry J.; Quinlan, Nathan J.; Monaghan, Rory F.D. (American Chemical Society, 2015-11-03)
      Substantial progress has been made in understanding and reducing temperature inhomogeneity in rapid compression machines (RCMs) with the help of computational modeling. To date, however, it has not been possible to investigate ...