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Author Külls, C.; Schwarz, O. openurl 
  Title Grundwasseranreicherung in den Waldbeständen der Teninger Allmend bei Freiburg im Breisgau Type Book Chapter
  Year 2000 Publication (up) Beiträge zur Physischen Geographie Abbreviated Journal  
  Volume Issue Pages 67 - 78  
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  Corporate Author Fachbereich Geowissenschaften der Johann Wolfgang Goethe-Universität Frankfurt am Main Thesis  
  Publisher Werner-F. Bär Place of Publication Frankfurt am Main Editor  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number THL @ christoph.kuells @ Serial 72  
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Author Külls, C. openurl 
  Title Rekonstruktion hydrologischer Extreme in der Namibwüste Type Journal Article
  Year 2011 Publication (up) Berichte der naturforschenden Gesellschaft zu Freiburg im Breisgau Abbreviated Journal  
  Volume Issue 101 Pages 69-81  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Serial 71  
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Author Dávila, P.; Külls, C.; Weiler, M. url  openurl
  Title A toolkit for groundwater mean residence time interpretation with gaseous tracers Type Journal Article
  Year 2013 Publication (up) Computers & Geosciences Abbreviated Journal  
  Volume 61 Issue Pages 116-125  
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  Corporate Author Thesis  
  Publisher Pergamon Place of Publication Editor  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Davila2013toolkit Serial 22  
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Author Emparanza, A.R.; Kampmann, R.; Caso, F.D.; Morales, C.; Nanni, A. url  openurl
  Title Durability assessment of GFRP rebars in marine environments Type Journal Article
  Year 2022 Publication (up) Construction and Building Materials Abbreviated Journal  
  Volume 329 Issue Pages 127028  
  Keywords Composite FRP rebar, Durability, Service life, Marine structures, Reinforced concrete  
  Abstract Technologies developed over the last two decades have facilitated the use of glass fiber reinforced polymer (GFRP) bars as internal reinforcement for concrete structures, specially in coastal environments, mainly due to their corrosion resistance. To-date, most durability studies have focused on a single mechanical parameter (tensile strength) and a single aging environment (exposure to high alkalinity). However, knowledge gaps exists in understanding how other mechanical parameters and relevant conditioning environments may affect the durability of GFRP bars. To this end, this study assesses the durability for different physio-mechanical properties of GFRP rebars, post exposure to accelerated conditioning in seawater. Six different GFRP rebar types were submerged in seawater tanks, at various temperatures (23°C, 40°C and 60°C) for different time periods (60, 120, 210 and 365 days). In total six different physio-mechanical properties were assessed, including: tensile strength, E-modulus, transverse and horizontal shear strength, micro-structural composition and lastly, bond strength. It was inferred that rebars with high moisture absorption resulted in poor durability, in that it affected mainly the tensile strength. Based on the Arrhenius model, at 23°C all the rebars that met the acceptance criteria by ASTM D7957 are expected to retain 85% of the tensile strength capacity.  
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  ISSN 0950-0618 ISBN Medium  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Ruizemparanza2022127028 Serial 83  
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Author Jin, Z.; Külls, C. doi  openurl
  Title FDM based OA-ICOS for high accuracy 13C quantification in gaseous CO2 Type Journal Article
  Year 2020 Publication (up) Earth and Environmental Science Abbreviated Journal EES  
  Volume 446 Issue 3 Pages 032061  
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  Series Editor Series Title IOP Conference Series Abbreviated Series Title  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Jin2020fdm Serial 16  
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Author Krüger, N.; Külls, C.; Bruggeman, A.; Eliades, M.; Christophi, C.; Rigas, M.; Eracleous, T. openurl 
  Title Groundwater recharge estimates with soil isotope profiles-is there a bias on coarse-grained hillslopes? Type Conference Article
  Year 2020 Publication (up) EGU General Assembly Conference Abstracts Abbreviated Journal  
  Volume Issue Pages 9840  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Krueger2020groundwater Serial 42  
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Author Tziritis, E.; Aschonitis, V.; Balacco, G.; Daras, P.; Doulgeris, C.; Fidelibus, M.D.; Gaubi, E.; Gueddari, M.; Güler, C.; Hamzaoui, F.; others openurl 
  Title MEDSAL Project-Salinization of critical groundwater reserves in coastal Mediterranean areas: Identification, risk assessment and sustainable management with the use of integrated modelling and smart ICT tools Type Conference Article
  Year 2020 Publication (up) EGU General Assembly Conference Abstracts Abbreviated Journal  
  Volume Issue Pages 2326  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Tziritis2020medsal Serial 43  
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Author Doulgeris, C.; Tziritis, E.; Pisinaras, V.; Panagopoulos, A.; Külls, C. openurl 
  Title Prediction of seawater intrusion to coastal aquifers based on non-dimensional diagrams Type Conference Article
  Year 2020 Publication (up) EGU Geophysical Abstracts Abbreviated Journal  
  Volume Issue Pages 4073  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Doulgeris2020prediction Serial 41  
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Author Gaj, M.; Beyer, M.; Hamutoko, J.; Uugulu, S.; Wanke, H.; Koeniger, P.; Külls, C.; Lohe, C.; Himmelsbach, T. openurl 
  Title How do soil types affect stable isotope ratios of 2H and 18O under evaporation: A Fingerprint of the Niipele subbasin of the Cuvelai-Etosha basin, Namibia Type Conference Article
  Year 2014 Publication (up) EGU Geophysical Abstracts Abbreviated Journal  
  Volume Issue Pages 5890  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Gaj2014soil Serial 44  
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Author Joseph, J.; Külls, C. openurl 
  Title Calibration of 13C and 18O measurements in CO2 using Off-axis Integrated Cavity Output Spectrometer (ICOS) Type Conference Article
  Year 2014 Publication (up) EGU Geophysical Abstracts Abbreviated Journal  
  Volume Issue Pages 659  
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  Notes Approved no  
  Call Number THL @ christoph.kuells @ Joseph2014calibration Serial 45  
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