@article{KuhnhenneDoeringKockeretal.2010,
  author    = {Kuhnhenne, Markus and D{\"o}ring, Bernd and Kocker, Ronald and Pyschny, Dominik and Feldmann, Markus},
  title     = {Die {\"O}kobilanz als Baustein der Nachhaltigkeitsbewertung im Industrie- und Gewerbebau},
  series = {Stahlbau},
  volume    = {79},
  journal   = {Stahlbau},
  number    = {6},
  publisher = {Ernst \& Sohn},
  address   = {Berlin},
  issn      = {1437-1049 (E-Journal); 0038-9145 (Print)},
  doi       = {10.1002/stab.201001336},
  pages     = {439 -- 447},
  year      = {2010},
  abstract  = {Im Herbst 2009 wurde das "Deutsche G{\"u}tesiegel Nachhaltiges Bauen" f{\"u}r die Geb{\"a}udetypen Industriebauten und Handelsbauten offiziell vorgestellt. Die {\"O}kobilanz als wichtiger Baustein der Nachhaltigkeitsbewertung wird somit auch im Industrie- und Gewerbebau zuk{\"u}nftig stark an Bedeutung gewinnen. Der vorliegende Beitrag beinhaltet einen Vergleich der Umweltleistung verschiedener Bauweisen des Industrie- und Gewerbebaus, die durch die {\"O}kobilanzierung quantifizierbar wird, anhand von momentan verf{\"u}gbaren Daten und Methoden. Es werden ausgew{\"a}hlte Ergebnisse sowie vorhandene Unsicherheiten und daraus resultierender Forschungsbedarf aufgezeigt.},
  language  = {de}
}
@article{BungValero2016,
  author    = {Bung, Daniel B. and Valero, Daniel},
  title     = {Optical flow estimation in aerated flows},
  series = {Journal of Hydraulic Research},
  volume    = {54},
  journal   = {Journal of Hydraulic Research},
  number    = {5},
  publisher = {Taylor \& Francis},
  address   = {London},
  doi       = {10.1080/00221686.2016.1173600},
  pages     = {575 -- 580},
  year      = {2016},
  abstract  = {Optical flow estimation is known from Computer Vision where it is used to determine obstacle movements through a sequence of images following an assumption of brightness conservation. This paper presents the first study on application of the optical flow method to aerated stepped spillway flows. For this purpose, the flow is captured with a high-speed camera and illuminated with a synchronized LED light source. The flow velocities, obtained using a basic Horn-Schunck method for estimation of the optical flow coupled with an image pyramid multi-resolution approach for image filtering, compare well with data from intrusive conductivity probe measurements. Application of the Horn-Schunck method yields densely populated flow field data sets with velocity information for every pixel. It is found that the image pyramid approach has the most significant effect on the accuracy compared to other image processing techniques. However, the final results show some dependency on the pixel intensity distribution, with better accuracy found for grey values between 100 and 150.},
  language  = {en}
}
@article{OertelBung2015,
  author    = {Oertel, Mario and Bung, Daniel B.},
  title     = {Stability and scour development of bed material on crossbar block ramps},
  series = {International journal of sediment research},
  volume    = {30},
  journal   = {International journal of sediment research},
  number    = {4},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1001-6279},
  doi       = {10.1016/j.ijsrc.2014.12.003},
  pages     = {344 -- 350},
  year      = {2015},
  abstract  = {Block ramps are ecologically oriented drop structures with adequate energy dissipation and partially moderate flow velocities. A special case is given with crossbar block ramps, where the upstream and downstream level difference is reduced by a series of basins. To prevent the total structure from failing, the stability of single boulders within the crossbars and the bed material in between must be guaranteed. The present paper addresses the stability of bed material and scour development for various flow regimes. Any bed material erosion may affect the stability of the crossbar boulders, which in turn can result in major damages of the ramp. Therefore new design approaches are developed to choose an appropriate bed material size and to avoid failures of crossbar block ramp structures.},
  language  = {en}
}
@article{SchmidtHebel2009,
  author    = {Schmidt, Rolf and Hebel, Christoph},
  title     = {Makroskopische Verkehrssimulationsmodelle in der kommunalen Planungspraxis},
  series = {Stadt Region Land (2009)},
  journal   = {Stadt Region Land (2009)},
  publisher = {RWTH Aachen},
  address   = {Aachen},
  isbn      = {0344-9645},
  pages     = {63 -- 72},
  year      = {2009},
  language  = {de}
}