@article{BremerWollweberWeigandetal.,
  author    = {Bremer, K. and Wollweber, M. and Weigand, F. and Rahlves, M. and Kuhne, Michael and Helbig, R. and Roth, B.},
  title     = {Fibre Optic Sensors for the Structural Health Monitoring of Building Structures},
  series = {Procedia Technology 26},
  journal   = {Procedia Technology 26},
  doi       = {10.1016/j.protcy.2016.08.065},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170331-30912},
  pages     = {524 -- 529},
  abstract  = {In this work different fibre optic sensors for the structural health monitoring of civil engineering structures are reported. A fibre optic crack sensor and two different fibre optic moisture sensors have been designed to detect the moisture ingress in concrete based building structures. Moreover, the degeneration of the mechanical properties of optical glass fibre sensors and hence their long-term stability and reliability due to the mechanical and chemical impact of the concrete environment is discussed as well as the advantage of applying a fibre optic sensor system for the structural health monitoring of sewerage tunnels is demonstrated.},
  subject      = {Structural Health Monitoring},
  language  = {en}
}
@phdthesis{Kuhne1998,
  author    = {Kuhne, Michael},
  title     = {Modellierung des Energietransports durch Verglasungen},
  doi       = {10.25643/bauhaus-universitaet.43},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20040220-458},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {1998},
  abstract  = {Es werden sowohl analytische als auch numerische Verfahren zur Berechnung der W{\"a}rmeverluste von Verglasungen vorgestellt, wobei alle am Energietransport beteiligten Prozesse, die W{\"a}rmeleitung, die thermisch getriebenen Konvektionsstr{\"o}mungen und die infrarote Strahlungswechselwirkung, korrekt und vollst{\"a}ndig ber{\"u}cksichtigt werden. Mit Hilfe numerischer Str{\"o}mungssimulation werden Verglasungen systematisch hinsichtlich der F{\"u}llgasart, der Infrarotverspiegelung, der Einbaulage und des Scheibenabstandes sowie der Anzahl der Gaszwischenr{\"a}ume (Zwei-, Drei- und Vierscheiben-Verglasung) untersucht und verglichen. Die Abh{\"a}ngigkeit des k-Wertes von den Temperaturen der angrenzenden Klimate (Atmosph{\"a}re und Innenraum) wird dargestellt.},
  subject      = {Verglasung},
  language  = {de}
}
@article{BecherVoelkerRodehorstetal.,
  author    = {Becher, Lia and V{\"o}lker, Conrad and Rodehorst, Volker and Kuhne, Michael},
  title     = {Background-oriented schlieren technique for two-dimensional visualization of convective indoor air flows},
  series = {Optics and Lasers in Engineering},
  volume    = {2020},
  journal   = {Optics and Lasers in Engineering},
  number    = {Volume 134, article 106282},
  doi       = {https://doi.org/10.1016/j.optlaseng.2020.106282},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220810-46972},
  pages     = {9},
  abstract  = {This article focuses on further developments of the background-oriented schlieren (BOS) technique to visualize convective indoor air flow, which is usually defined by very small density gradients. Since the light rays deflect when passing through fluids with different densities, BOS can detect the resulting refractive index gradients as integration along a line of sight. In this paper, the BOS technique is used to yield a two-dimensional visualization of small density gradients. The novelty of the described method is the implementation of a highly sensitive BOS setup to visualize the ascending thermal plume from a heated thermal manikin with temperature differences of minimum 1 K. To guarantee steady boundary conditions, the thermal manikin was seated in a climate laboratory. For the experimental investigations, a high-resolution DLSR camera was used capturing a large field of view with sufficient detail accuracy. Several parameters such as various backgrounds, focal lengths, room air temperatures, and distances between the object of investigation, camera, and structured background were tested to find the most suitable parameters to visualize convective indoor air flow. Besides these measurements, this paper presents the analyzing method using cross-correlation algorithms and finally the results of visualizing the convective indoor air flow with BOS. The highly sensitive BOS setup presented in this article complements the commonly used invasive methods that highly influence weak air flows.},
  subject      = {Raumklima},
  language  = {en}
}