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@ARTICLE{Patriarca:15978,
      author       = {Patriarca, C. and Lambot, S. and Mahmoudzadeh, M.R. and
                      Minet, J. and Slob, E.},
      title        = {{R}econstruction of sub-wavelength fractures and physical
                      properties of masonry media using full-waveform inversion of
                      proximal penetrating radar},
      journal      = {Journal of applied geophysics},
      volume       = {74},
      issn         = {0926-9851},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-15978},
      pages        = {26 - 37},
      year         = {2011},
      note         = {The research leading to these results has received funding
                      from the European Community's Seventh Framework Programme
                      [FP7/2007-2013] under grant agreement no. 213651. The
                      research was further supported by the DIGISOIL project,
                      financed by the EC under the 7th Framework Programme for
                      Research and Technology Development, Area "Environment",
                      Activity 6.3 "Environmental Technologies" and FNRS
                      (Belgium). We also thank the editor and two unknown
                      reviewers for their helpful comments.},
      abstract     = {High-frequency, ultra-wideband penetrating radar has the
                      potential to be used as a non-invasive inspection technique
                      for buildings, providing high-resolution images of
                      structures and possible fractures affecting constructions.
                      To test this possibility, numerical and laboratory
                      experiments have been conducted using a proximal,
                      stepped-frequency continuous-wave radar system operating in
                      zero-offset mode, spanning the 3-8 GHz frequency range. The
                      reconstruction of the material electrical properties is
                      achieved by resorting to full-waveform inverse modeling.
                      Numerical experiments showed that for typical electric
                      permittivity and electrical conductivity values of concrete
                      and plaster, it is possible to retrieve the physical
                      properties of the material and to detect fractures less than
                      1 mm thick Laboratory experiments were conducted on
                      non-reinforced concrete and plaster test slabs in different
                      configurations. The results showed the good potential of
                      this method: (1) to provide a thorough fracture response
                      model in buildings or artworks and (2) to non-invasively
                      characterize the samples in terms of their electromagnetic
                      properties. (C) 2011 Elsevier B.V. All rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {IBG-3},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {Terrestrische Umwelt / STONECORE - Stone conservation for
                      the refurbishment of buildings (213651)},
      pid          = {G:(DE-Juel1)FUEK407 / G:(EU-Grant)213651},
      shelfmark    = {Geosciences, Multidisciplinary / Mining $\&$ Mineral
                      Processing},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000291291300004},
      doi          = {10.1016/j.jappgeo.2011.03.001},
      url          = {https://juser.fz-juelich.de/record/15978},
}