@inproceedings{Bung2010,
  author    = {Bung, Daniel B.},
  title     = {A comparative study of self-aerated stepped spillway and smooth invert chute flow: the effect of step-induced macro roughness},
  series = {5th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering : CG JOINT 2010},
  booktitle = {5th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering : CG JOINT 2010},
  publisher = {Univ. Press},
  address   = {Tianjin},
  organization    = {Chinese-German Joint Symposium on Hydraulic and Ocean Engineering <5, 2010, Tianjin>},
  isbn      = {978-7-5618-3671-2},
  pages     = {451 -- 456},
  year      = {2010},
  language  = {en}
}
@article{Hoettges1992,
  author    = {H{\"o}ttges, J{\"o}rg},
  title     = {A Full Finite Element Solution for the Unsteady Advection-Diffusion Equation},
  series = {Computational methods in water resources : [proceedings of the Ninth International Conference on Computational Methods in Water Resources held at the University of Colorado at Denver, U.S.A., in June 1992] / ed.: T. F. Russell},
  journal   = {Computational methods in water resources : [proceedings of the Ninth International Conference on Computational Methods in Water Resources held at the University of Colorado at Denver, U.S.A., in June 1992] / ed.: T. F. Russell},
  publisher = {Computational Mechanics Publications [u.a.]},
  address   = {Southampton [u.a.]},
  isbn      = {185312169X},
  year      = {1992},
  language  = {en}
}
@inproceedings{UibelBlass2010,
  author    = {Uibel, Thomas and Blaß, Hans Joachim},
  title     = {A new method to determine suitable spacings and distances for self-tapping screws},
  series = {Meeting ... / International Council for Research and Innovation in Building and Construction, Working Commission W18 - Timber Structures},
  volume    = {43},
  booktitle = {Meeting ... / International Council for Research and Innovation in Building and Construction, Working Commission W18 - Timber Structures},
  publisher = {Lehrstuhl f{\"u}r Ingenieurholzbau und Baukonstruktionen},
  address   = {Karlsruhe},
  issn      = {1864-1784},
  year      = {2010},
  abstract  = {The determination of spacing, edge and end distance requirements for self-tapping screws requires numerous and comprehensive insertion tests. Yet the results of such tests cannot be transferred to other types of screws or even to screws of different diameter because of differences in shape or geometry. To reduce the effort of insertion tests a new method was developed which allows the estimation of required spacings, distances and timber thickness.},
  language  = {en}
}
@inproceedings{ValeroKramerBungetal.2019,
  author    = {Valero, Daniel and Kramer, Matthias and Bung, Daniel B. and Chanson, Hubert},
  title     = {A stochastic bubble generator for air-water flow research},
  series = {E-proceedings of the 38th IAHR World Congress, September 1-6, 2019, Panama City, Panama},
  booktitle = {E-proceedings of the 38th IAHR World Congress, September 1-6, 2019, Panama City, Panama},
  doi       = {10.3850/38WC092019-0909},
  pages     = {5714 -- 5721},
  year      = {2019},
  language  = {en}
}
@article{Jochim2004,
  author    = {Jochim, Haldor E.},
  title     = {A traffic resistance model of long-distance travel},
  series = {Networks for mobility : 2nd international symposium, September 29 - October 1, 2004, Stuttgart, Germany ; proceedings ; abstracts and CD-ROM / [2nd International Symposium on Networks for Mobility]. FOVUS, Centre of Transportation Research, University of},
  journal   = {Networks for mobility : 2nd international symposium, September 29 - October 1, 2004, Stuttgart, Germany ; proceedings ; abstracts and CD-ROM / [2nd International Symposium on Networks for Mobility]. FOVUS, Centre of Transportation Research, University of},
  publisher = {FOVUS},
  address   = {Stuttgart},
  isbn      = {3-89301-180-3},
  pages     = {X, 84 S. : graph. Darst. + 1 CD-ROM},
  year      = {2004},
  language  = {en}
}
@inproceedings{SiekmannMueller2011,
  author    = {Siekmann, Thomas and M{\"u}ller, Karsten},
  title     = {Adaptive potential of the stormwater management in urban areas faced by the climate change},
  series = {12th International Conference on Urban Drainage, Porto Alegre/Brazil, 11-16 September 2011},
  booktitle = {12th International Conference on Urban Drainage, Porto Alegre/Brazil, 11-16 September 2011},
  pages     = {9 S.},
  year      = {2011},
  language  = {en}
}
@article{BungErpicumTullis2020,
  author    = {Bung, Daniel Bernhard and Erpicum, S{\´e}bastien and Tullis, Blanke P.},
  title     = {Advances in hydraulic structures engineering},
  series = {Journal of Hydraulic Engineering},
  volume    = {147},
  journal   = {Journal of Hydraulic Engineering},
  number    = {1},
  publisher = {ASCE},
  address   = {Reston, Va.},
  issn      = {0733-9429 (Druckausgabe)},
  doi       = {10.1061/(ASCE)HY.1943-7900.0001851},
  pages     = {1 Seite},
  year      = {2020},
  language  = {en}
}
@inproceedings{Bung2013,
  author    = {Bung, Daniel B.},
  title     = {Air-water surface roughness in self-aerated stepped spillway flows},
  series = {35th IAHR world congress : 8.-13.9.2013, Chengdu, China},
  booktitle = {35th IAHR world congress : 8.-13.9.2013, Chengdu, China},
  publisher = {Tsinghua Univ. Press},
  address   = {Beijing},
  organization    = {International Association for Hydraulic Engineering and Research},
  pages     = {Artikelkennnummer: A11045},
  year      = {2013},
  language  = {en}
}
@article{LopesLeandroCarvalhoetal.2017,
  author    = {Lopes, Pedro and Leandro, Jorge and Carvalho, Rita F. and Bung, Daniel B.},
  title     = {Alternating skimming flow over a stepped spillway},
  series = {Environmental Fluid Mechanics},
  volume    = {17},
  journal   = {Environmental Fluid Mechanics},
  number    = {2},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1573-1510},
  doi       = {10.1007/s10652-016-9484-x},
  pages     = {303 -- 322},
  year      = {2017},
  language  = {en}
}
@article{BienerBethkeSasseetal.2003,
  author    = {Biener, Ernst and Bethke, H. and Sasse, T. and Wernhoff, T.},
  title     = {Alternative landfill capping using locally available recycled material},
  series = {Land contamination \& reclamation. 14 (2003), H. 4},
  journal   = {Land contamination \& reclamation. 14 (2003), H. 4},
  isbn      = {0967-0513},
  pages     = {419 -- 427},
  year      = {2003},
  language  = {en}
}
@inproceedings{DoeringFeldmannKuhnhenne2007,
  author    = {D{\"o}ring, Bernd and Feldmann, Markus and Kuhnhenne, Markus},
  title     = {An innovative thermally activated light-weight steel deck system - numerical investigations and practical tests},
  series = {Clima 2007 WellBeing Indoors: 9th Rehva World Congress, 10-14 June 2007, Helsinki, Finland : proceedings},
  booktitle = {Clima 2007 WellBeing Indoors: 9th Rehva World Congress, 10-14 June 2007, Helsinki, Finland : proceedings},
  address   = {Helsinki},
  isbn      = {978-952-99898-2-9},
  pages     = {1 -- 8},
  year      = {2007},
  language  = {en}
}
@article{CheenakulaHoffstadtKrafftetal.2022,
  author    = {Cheenakula, Dheeraja and Hoffstadt, Kevin and Krafft, Simone and Reinecke, Diana and Klose, Holger and Kuperjans, Isabel and Gr{\"o}mping, Markus},
  title     = {Anaerobic digestion of algal-bacterial biomass of an Algal Turf Scrubber system},
  series = {Biomass Conversion and Biorefinery},
  volume    = {13},
  journal   = {Biomass Conversion and Biorefinery},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {2190-6823},
  doi       = {10.1007/s13399-022-03236-z},
  pages     = {15 Seiten},
  year      = {2022},
  abstract  = {This study investigated the anaerobic digestion of an algal-bacterial biofilm grown in artificial wastewater in an Algal Turf Scrubber (ATS). The ATS system was located in a greenhouse (50°54′19ʺN, 6°24′55ʺE, Germany) and was exposed to seasonal conditions during the experiment period. The methane (CH4) potential of untreated algal-bacterial biofilm (UAB) and thermally pretreated biofilm (PAB) using different microbial inocula was determined by anaerobic batch fermentation. Methane productivity of UAB differed significantly between microbial inocula of digested wastepaper, a mixture of manure and maize silage, anaerobic sewage sludge, and percolated green waste. UAB using sewage sludge as inoculum showed the highest methane productivity. The share of methane in biogas was dependent on inoculum. Using PAB, a strong positive impact on methane productivity was identified for the digested wastepaper (116.4\%) and a mixture of manure and maize silage (107.4\%) inocula. By contrast, the methane yield was significantly reduced for the digested anaerobic sewage sludge (50.6\%) and percolated green waste (43.5\%) inocula. To further evaluate the potential of algal-bacterial biofilm for biogas production in wastewater treatment and biogas plants in a circular bioeconomy, scale-up calculations were conducted. It was found that a 0.116 km2 ATS would be required in an average municipal wastewater treatment plant which can be viewed as problematic in terms of space consumption. However, a substantial amount of energy surplus (4.7-12.5 MWh a-1) can be gained through the addition of algal-bacterial biomass to the anaerobic digester of a municipal wastewater treatment plant. Wastewater treatment and subsequent energy production through algae show dominancy over conventional technologies.},
  language  = {en}
}
@inproceedings{BungValero2016,
  author    = {Bung, Daniel B. and Valero, Daniel},
  title     = {Application of the optical flow method to velocity determination in hydraulic structure models},
  series = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016},
  booktitle = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016},
  editor    = {Crookston, B. and Tullis, B.},
  isbn      = {978-1-884575-75-4},
  doi       = {10.15142/T3150628160853},
  pages     = {223 -- 232},
  year      = {2016},
  language  = {en}
}
@article{ValeroBung2017,
  author    = {Valero, Daniel and Bung, Daniel B.},
  title     = {Artificial Neural Networks and pattern recognition for air-water flow velocity estimation using a single-tip optical fibre probe},
  series = {Journal of Hydro-environment Research},
  volume    = {19},
  journal   = {Journal of Hydro-environment Research},
  number    = {3},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1570-6443},
  doi       = {10.1016/j.jher.2017.08.004},
  pages     = {150 -- 159},
  year      = {2017},
  language  = {en}
}
@article{BienerRouve1984,
  author    = {Biener, Ernst and Rouv{\´e}, G.},
  title     = {Behaviour and maintenance of some old masonry gravity dams},
  series = {Safety of dams : proceedings of the International Conference on Safety of Dams, Coimbra, 23-28 April 1984 / ed. by J. Laginha Serafim. - [Hauptbd.]},
  journal   = {Safety of dams : proceedings of the International Conference on Safety of Dams, Coimbra, 23-28 April 1984 / ed. by J. Laginha Serafim. - [Hauptbd.]},
  publisher = {Rotterdam [u.a.]},
  address   = {Balkema},
  isbn      = {90-6191-522-8},
  pages     = {101 -- 106},
  year      = {1984},
  language  = {en}
}
@inproceedings{BungHildebrandtOerteletal.2008,
  author    = {Bung, Daniel B. and Hildebrandt, Arndt and Oertel, Mario and Schlenkhoff, Andreas and Schlurmann, Torsten},
  title     = {Bore propagation over a submerged horizontal plate by physical and numerical simulation},
  series = {Coastal engineering 2008 : proceedings of the 31st international conference; Hamburg, Germany, 31 August - 5 September 2008 ; Vol. 4},
  booktitle = {Coastal engineering 2008 : proceedings of the 31st international conference; Hamburg, Germany, 31 August - 5 September 2008 ; Vol. 4},
  editor    = {McKee Smith, Jane},
  isbn      = {9814277401 ; 9789814277402},
  pages     = {3542 -- 3553},
  year      = {2008},
  language  = {en}
}
@techreport{SansomLawsonTuchoetal.2016,
  author    = {Sansom, M. and Lawson, R.M. and Tucho, R. and Kendrick, C. and Ogden, R. and Resalati, S. and Garay, R. and D{\"o}ring, Bernd and Reger, V. and Gilbert, J. and Heikkinen, J. and Hemmila, K.},
  title     = {Building in active thermal mass into steel structures (BATIMASS) - EUR 28166EN},
  publisher = {Publications Office of the European Union},
  address   = {Luxembourg},
  organization    = {European Commission},
  isbn      = {978-92-79-63176-4},
  issn      = {1831-9424},
  doi       = {10.2777/25999},
  pages     = {147 Seiten},
  year      = {2016},
  abstract  = {The main objective of the BATIMASS project was to address how the energy balance in relatively lightweight steel buildings can be improved by building in 'active thermal mass' (ATM) into the building fabric. This was achieved through concept design, dynamic thermal modelling and testing of a number of potentially viable systems and concepts. A significant programme of thermal simulation modelling was undertaken utilising the thermally equivalent slab (TES) concept to model the passive thermal capacity effect of profiled, composite metal floor decks. It is apparent from the modelling results that thermal mass is a highly complex phenomenon which is highly dependent upon building type, occupancy patterns, climate and many other aspects of the building design and servicing strategy. The ATM systems developed, both conceptually and for prototype testing, focussed on water-cooled composite slabs, the Cofradal floor system and the phase change material (PCM) Energain. In addition to laboratory testing of prototypes, whole building monitoring was undertaken at the Kubik building in Spain and the RWTH test building in Germany. Advanced thermal modelling was also undertaken to estimate the likely benefits of the ATM concept designs developed and for comparison with the test results. In addition to thermal testing, structural tests were conducted on composite floor specimens incorporating embedded water pipes. This Final Report presents the results of the activities carried out under this RFCS contract RFSR CT 2012 00033. The work carried out is reported in six major sections corresponding to the technical Work Packages of the project. Only summaries of the work carried out are provided in this report; all work undertaken is fully reported in the formal project deliverables.},
  language  = {en}
}
@inproceedings{OertelBung2012,
  author    = {Oertel, Mario and Bung, Daniel B.},
  title     = {Characteristics of cross-bar block ramp flows},
  series = {Hydraulic structures into the 21st century : 4th IAHR International Symposium on Hydraulic Structures : 9.-11.2.2012, Porto},
  booktitle = {Hydraulic structures into the 21st century : 4th IAHR International Symposium on Hydraulic Structures : 9.-11.2.2012, Porto},
  organization    = {International Symposium on Hydraulic Structures <4, 2012, Porto>},
  isbn      = {978-989-8509-01-7},
  pages     = {Elektronisch publiziert},
  year      = {2012},
  language  = {en}
}
@article{Jochim2002,
  author    = {Jochim, Haldor E.},
  title     = {Charging rail operators for delays - how not to do it},
  series = {Networks for mobility : International Symposium, September 18 - 20, 2002, Stuttgart, Germany ; proceedings / University of Stuttgart, Centre of Transporation Research (FOVUS). W. M{\"o}hlenbrink ... (eds.)},
  journal   = {Networks for mobility : International Symposium, September 18 - 20, 2002, Stuttgart, Germany ; proceedings / University of Stuttgart, Centre of Transporation Research (FOVUS). W. M{\"o}hlenbrink ... (eds.)},
  publisher = {FOVUS},
  address   = {Stuttgart},
  isbn      = {3893010858},
  year      = {2002},
  language  = {en}
}
@article{ValeroBungCrookston2019,
  author    = {Valero, D. and Bung, Daniel B. and Crookston, B. M.},
  title     = {Closure to "Energy Dissipation of a Type III Basin under Design and Adverse Conditions for Stepped and Smooth Spillways"},
  series = {Journal of Hydraulic Engineering},
  volume    = {146},
  journal   = {Journal of Hydraulic Engineering},
  number    = {2},
  publisher = {ASCE},
  address   = {Reston, Va.},
  doi       = {10.1061/(ASCE)HY.1943-7900.0001669},
  year      = {2019},
  language  = {en}
}
@article{HoettgesArnoldRouve1989,
  author    = {H{\"o}ttges, J{\"o}rg and Arnold, Uwe and Rouv{\´e}, Gerhard},
  title     = {Combined Digital Image and Finite Element Analysis of Mixing in Compound Open Channel Flow / Arnold, U.; J. H{\"o}ttges; G. Rouv{\´e}},
  series = {Refined flow modelling and turbulence measurements : proceedings of the Third International Symposium Tokyo, Japan 26 - 28 July, 1988 / ed. by Y. Iwasa. Scientific Organizing Committee of the Third International Symposium on Refined Flow Modelling and Tur},
  journal   = {Refined flow modelling and turbulence measurements : proceedings of the Third International Symposium Tokyo, Japan 26 - 28 July, 1988 / ed. by Y. Iwasa. Scientific Organizing Committee of the Third International Symposium on Refined Flow Modelling and Tur},
  publisher = {Universal Acad. Press},
  address   = {Tokyo},
  isbn      = {4-946443-03-7},
  pages     = {569 -- 576},
  year      = {1989},
  language  = {en}
}
@inproceedings{OertelBung2013,
  author    = {Oertel, Mario and Bung, Daniel B.},
  title     = {Comparison of 2D dam-break waves with VOF and SPH method},
  series = {Proceedings of the 35th IAHR world congress : 8.-13.9.2013, Chengdu, China},
  booktitle = {Proceedings of the 35th IAHR world congress : 8.-13.9.2013, Chengdu, China},
  publisher = {Tsinghua Univ. Press},
  address   = {Beijing},
  organization    = {International Association for Hydraulic Engineering and Research},
  pages     = {Artikelkennnummer: A11113},
  year      = {2013},
  language  = {en}
}
@article{CheenakulaGriebelMontagetal.2023,
  author    = {Cheenakula, Dheeraja and Griebel, Kai and Montag, David and Gr{\"o}mping, Markus},
  title     = {Concept development of a mainstream deammonification and comparison with conventional process in terms of energy, performance and economical construction perspectives},
  series = {Frontiers in Microbiology},
  volume    = {14},
  journal   = {Frontiers in Microbiology},
  number    = {11155235},
  editor    = {Huang, Xiaowu},
  publisher = {Frontiers},
  issn      = {1664-302X},
  doi       = {10.3389/fmicb.2023.1155235},
  pages     = {1 -- 15},
  year      = {2023},
  abstract  = {Deammonification for nitrogen removal in municipal wastewater in temperate and cold climate zones is currently limited to the side stream of municipal wastewater treatment plants (MWWTP). This study developed a conceptual model of a mainstream deammonification plant, designed for 30,000 P.E., considering possible solutions corresponding to the challenging mainstream conditions in Germany. In addition, the energy-saving potential, nitrogen elimination performance and construction-related costs of mainstream deammonification were compared to a conventional plant model, having a single-stage activated sludge process with upstream denitrification. The results revealed that an additional treatment step by combining chemical precipitation and ultra-fine screening is advantageous prior the mainstream deammonification. Hereby chemical oxygen demand (COD) can be reduced by 80\% so that the COD:N ratio can be reduced from 12 to 2.5. Laboratory experiments testing mainstream conditions of temperature (8-20°C), pH (6-9) and COD:N ratio (1-6) showed an achievable volumetric nitrogen removal rate (VNRR) of at least 50 gN/(m3∙d) for various deammonifying sludges from side stream deammonification systems in the state of North Rhine-Westphalia, Germany, where m3 denotes reactor volume. Assuming a retained Norganic content of 0.0035 kgNorg./(P.E.∙d) from the daily loads of N at carbon removal stage and a VNRR of 50 gN/(m3∙d) under mainstream conditions, a resident-specific reactor volume of 0.115 m3/(P.E.) is required for mainstream deammonification. This is in the same order of magnitude as the conventional activated sludge process, i.e., 0.173 m3/(P.E.) for an MWWTP of size class of 4. The conventional plant model yielded a total specific electricity demand of 35 kWh/(P.E.∙a) for the operation of the whole MWWTP and an energy recovery potential of 15.8 kWh/(P.E.∙a) through anaerobic digestion. In contrast, the developed mainstream deammonification model plant would require only a 21.5 kWh/(P.E.∙a) energy demand and result in 24 kWh/(P.E.∙a) energy recovery potential, enabling the mainstream deammonification model plant to be self-sufficient. The retrofitting costs for the implementation of mainstream deammonification in existing conventional MWWTPs are nearly negligible as the existing units like activated sludge reactors, aerators and monitoring technology are reusable. However, the mainstream deammonification must meet the performance requirement of VNRR of about 50 gN/(m3∙d) in this case.},
  language  = {en}
}
@article{BienerSasse1993,
  author    = {Biener, Ernst and Sasse, T.},
  title     = {Construction and rehabilitation of landfill shafts},
  series = {Sardinia 93 : Fourth International Landfill Symposium "Barrier systems, environmental aspects, upgrading and remediation, siting, monofills, effects of waste pretreatment, landfilling in developing countries" ; 11 - 15 October 1993, S. Margherita di Pula (Cagliari), Sardinia, Italy ; proceedings / coord. by Thomas H. Christensen ... - Bd. 1},
  journal   = {Sardinia 93 : Fourth International Landfill Symposium "Barrier systems, environmental aspects, upgrading and remediation, siting, monofills, effects of waste pretreatment, landfilling in developing countries" ; 11 - 15 October 1993, S. Margherita di Pula (Cagliari), Sardinia, Italy ; proceedings / coord. by Thomas H. Christensen ... - Bd. 1},
  publisher = {CISA, Environmental Sanitary Engineering Centre},
  address   = {Cagliari},
  pages     = {451 -- 460},
  year      = {1993},
  language  = {en}
}
@article{BienerSasse1994,
  author    = {Biener, Ernst and Sasse, T.},
  title     = {Construction of composite lining systems under unfavourable weather conditions},
  series = {Landfilling of waste: barriers / ed. by T. H. Christensen; R. Cossu; R. Stegmann. - 1. Aufl.},
  journal   = {Landfilling of waste: barriers / ed. by T. H. Christensen; R. Cossu; R. Stegmann. - 1. Aufl.},
  publisher = {Spon},
  address   = {London [u.a.]},
  isbn      = {0419159908},
  pages     = {183 -- 200},
  year      = {1994},
  language  = {en}
}
@article{WoliszSchuetzBlankeetal.2017,
  author    = {Wolisz, Henryk and Sch{\"u}tz, Thomas and Blanke, Tobias and Hagenkamp, Markus and Kohrn, Markus and Wesseling, Mark and M{\"u}ller, Dirk},
  title     = {Cost optimal sizing of smart buildings' energy system components considering changing end-consumer electricity markets},
  series = {Energy},
  volume    = {137},
  journal   = {Energy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.energy.2017.06.025},
  pages     = {715 -- 728},
  year      = {2017},
  language  = {en}
}
@inproceedings{JockwerKleiberUibel2018,
  author    = {Jockwer, R. and Kleiber, M. and Uibel, Thomas},
  title     = {Criteria for Evaluating the Simplification of Design Rules for Dowel-type Fasteners},
  series = {International Network on Timber Engineering Research, INTER : proceedings, meeting 51, 10 - 13 August 2016, Tallinn, Estonia},
  booktitle = {International Network on Timber Engineering Research, INTER : proceedings, meeting 51, 10 - 13 August 2016, Tallinn, Estonia},
  editor    = {G{\"o}rlacher, Rainer},
  publisher = {Timber Scientific Publishing, KIT Holzbau und Baukonstruktionen},
  address   = {Karlsruhe},
  pages     = {461 -- 466},
  year      = {2018},
  language  = {en}
}
@article{Bung2011,
  author    = {Bung, Daniel B.},
  title     = {Developing flow in skimming flow regime on embankment stepped spillways},
  series = {Journal of hydraulic research},
  volume    = {Vol. 49},
  journal   = {Journal of hydraulic research},
  number    = {Iss. 5},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {1814-2079 (E-Journal); 0022-1686 (Print)},
  pages     = {639 -- 648},
  year      = {2011},
  language  = {en}
}
@misc{SchulzeBuxlohGrossCheng2020,
  author    = {Schulze-Buxloh, Lina and Groß, Rolf Fritz and Cheng, Kevin Toni},
  title     = {Development and manufacturing of an interactive three-dimensional phase diagram of carbon dioxide for teaching sessions in thermodynamics},
  series = {Proceedings of the International Conference The Future of Education 2020},
  journal   = {Proceedings of the International Conference The Future of Education 2020},
  year      = {2020},
  language  = {en}
}
@article{ValeroBung2016,
  author    = {Valero, Daniel and Bung, Daniel B.},
  title     = {Development of the interfacial air layer in the non-aerated region of high-velocity spillway flows: Instabilities growth, entrapped air and influence on the self-aeration onset},
  series = {International Journal of Multiphase Flow},
  volume    = {84},
  journal   = {International Journal of Multiphase Flow},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0301-9322},
  doi       = {10.1016/j.ijmultiphaseflow.2016.04.012},
  pages     = {66 -- 74},
  year      = {2016},
  abstract  = {Self-aeration is traditionally explained by the water turbulent boundary layer outer edge intersection with the free surface. This paper presents a discussion on the commonly accepted hypothesis behind the computation of the critical point of self-aeration in spillway flows and a new formulation is proposed based on the existence of a developing air flow over the free surface. Upstream of the inception point of self-aeration, some surface roughening has been often reported in previous studies which consequently implies some entrapped air transport and air-water flows coupling. Such air flow is proven in this study by presenting measured air velocities and computing the air boundary layer thickness for a 1V:2H smooth chute flow. Additionally, the growth rate of free surface waves has been analysed by means of Ultrasonic Sensors measurements, obtaining also the entrapped air concentration. High-speed camera imaging has been used for qualitative study of the flow perturbations.},
  language  = {en}
}
@inproceedings{SchulzeBuxlohGrossUlbrich2021,
  author    = {Schulze-Buxloh, Lina and Groß, Rolf Fritz and Ulbrich, Michelle},
  title     = {Digital planning using building information modelling and virtual reality: new approach for students' remote practical training under lockdown conditions in the course of smart building engineering},
  series = {Proceedings of International Conference on Education in Mathematics, Science and Technology 2021},
  booktitle = {Proceedings of International Conference on Education in Mathematics, Science and Technology 2021},
  publisher = {ISTES Organization},
  address   = {San Antonio, TX},
  isbn      = {978-1-952092-17-6},
  pages     = {118 -- 123},
  year      = {2021},
  abstract  = {The worldwide Corona pandemic has severely restricted student projects in the higher semesters of engineering courses. In order not to delay the graduation, a new concept had to be developed for projects under lockdown conditions. Therefore, unused rooms at the university should be digitally recorded in order to develop a new usage concept as laboratory rooms. An inventory of the actual state of the rooms was done first by taking photos and listing up all flaws and peculiarities. After that, a digital site measuring was done with a 360° laser scanner and these recorded scans were linked to a coherent point cloud and transferred to a software for planning technical building services and supporting Building Information Modelling (BIM). In order to better illustrate the difference between the actual and target state, two virtual reality models were created for realistic demonstration. During the project, the students had to go through the entire digital planning phases. Technical specifications had to be complied with, as well as documentation, time planning and cost estimate. This project turned out to be an excellent alternative to on-site practical training under lockdown conditions and increased the students' motivation to deal with complex technical questions.},
  language  = {en}
}
@techreport{KestiBurstrandKnutssonSalvatoreetal.2008,
  author    = {Kesti, J. and Burstrand Knutsson, H. and Salvatore, W. and Saouridis, C. and Odrieres Mer{\´e}, J. and Georgi, H. and Casajus, A. and Butz, C. and Schneider, R. and D{\"o}ring, Bernd},
  title     = {Dissemination of knowledge in the use of steel-intensive dry construction systems in housing : final report. Contract No RFS2-CT-2004-00036. EUR 22849 EN},
  publisher = {Office for Official Publications of the European Communities},
  address   = {Luxembourg},
  organization    = {European Commission / Research Fund for Coal and Steel},
  isbn      = {978-92-79-05973-5},
  pages     = {205 S.},
  year      = {2008},
  language  = {en}
}
@inproceedings{StepkesZimmermannMuelleretal.2007,
  author    = {Stepkes, Hermann and Zimmermann, J. and M{\"u}ller, Karsten and Siekmann, Marko and Pinnekamp, Josef},
  title     = {Economical rehabilitation of sewer systems by ground penetration radar investigations},
  series = {Strategic asset management of water supply and wastewater infrastructures : invited papers from the 2nd IWA Leading Edge Conference on Strategic Asset Management (LESAM), Lisbon, October [17 - 19] 2007 / ed. by Helene Alegre and Maria do C{\´e}u Almeida},
  booktitle = {Strategic asset management of water supply and wastewater infrastructures : invited papers from the 2nd IWA Leading Edge Conference on Strategic Asset Management (LESAM), Lisbon, October [17 - 19] 2007 / ed. by Helene Alegre and Maria do C{\´e}u Almeida},
  publisher = {IWA Publ.},
  address   = {London},
  isbn      = {9781843391869},
  pages     = {501 -- 520},
  year      = {2007},
  language  = {en}
}
@inproceedings{UibelBlass2007,
  author    = {Uibel, Thomas and Blaß, Hans Joachim},
  title     = {Edge Joints with Dowel Type Fasteners in Cross Laminated Timber},
  series = {Proceedings. CIB-W18 Meeting 2007, Bled, Slovenia 2007},
  booktitle = {Proceedings. CIB-W18 Meeting 2007, Bled, Slovenia 2007},
  issn      = {0945-6996},
  pages     = {1 -- 11},
  year      = {2007},
  language  = {en}
}
@techreport{FeldmannKuhnhenneDoeringetal.2013,
  author    = {Feldmann, M. and Kuhnhenne, M. and D{\"o}ring, Bernd and Pyschny, D. and Lawson, R.M. and Chuter, R.D. and Boudjabeur, S. and Lecomte-Labory, F. and Airaksinen, M. and Heikkinen, J. and Laamanen, J. and Albart, P. and D'Haeyer, R. and Chica, J.A. and Maseda, J.M. and Amundarain, A. and Rips, M.O. and Nu{\~n}ez, J.A. and Mac{\´i}as, O. and Beguin, P. and Ben Larbi, A.},
  title     = {Energy and thermal improvements for construction in steel (ETHICS) - EUR 26010},
  publisher = {Publications Office of the European Union},
  address   = {Luxembourg},
  organization    = {European Commission},
  isbn      = {978-92-79-30789-8},
  issn      = {1831-9424},
  doi       = {10.2777/17106},
  pages     = {136 Seiten},
  year      = {2013},
  abstract  = {ETHICS is concerned with evaluating, measuring and making improvements in the thermal and energy performance of steel-clad and steel-framed buildings. It addresses basic building physics performance at a laboratory and full-scale level, and the preparation of design guidance for commercial, industrial and residential buildings. It includes the development of design tools to assist users in assessing whole-building performance, and calibrates these tools against whole-building measurements, which will be obtained from this research. Opportunities for renewable energy and other energy-saving features will be assessed. This project focuses on objectives that are of particular interest for the design of new steel constructions regarding energy efficiency. ETHICS investigates the as-built performance by on-site tests regarding air tightness and heat transfer properties of the building envelope and by monitoring the energy consumption and thermal comfort of selected up-to-date steel buildings. As energy efficiency is a key requirement for design and construction of buildings in the future, this project provides well-founded scientific data, which prove the high energy performance of current steel constructions and work out details for further improvements to maintain and extend the position of steel products in the construction sector.},
  language  = {en}
}
@article{ValeroBungCrookston2018,
  author    = {Valero, Daniel and Bung, Daniel B. and Crookston, B.M.},
  title     = {Energy dissipation of a Type III basin under design and adverse conditions for stepped and smooth spillways},
  series = {Journal of Hydraulic Engineering},
  volume    = {144},
  journal   = {Journal of Hydraulic Engineering},
  number    = {7},
  publisher = {ASCE},
  address   = {Reston, Va.},
  issn      = {0733-9429},
  doi       = {10.1061/(ASCE)HY.1943-7900.0001482},
  year      = {2018},
  abstract  = {New information regarding the influence of a stepped chute on the hydraulic performance of the United States Bureau of Reclamation (Reclamation) Type III hydraulic jump stilling basin is presented for design (steady) and adverse (decreasing tailwater) conditions. Using published experimental data and computational fluid dynamics (CFD) models, this paper presents a detailed comparison between smooth-chute and stepped-chute configurations for chute slopes of 0.8H:1V and 4H:1V and Froude numbers (F) ranging from 3.1 to 9.5 for a Type III basin designed for F = 8. For both stepped and smooth chutes, the relative role of each basin element was quantified, up to the most hydraulic extreme case of jump sweep-out. It was found that, relative to a smooth chute, the turbulence generated by a stepped chute causes a higher maximum velocity decay within the stilling basin, which represents an enhancement of the Type III basin's performance but also a change in the relative role of the basin elements. Results provide insight into the ability of the CFD models [unsteady Reynolds-averaged Navier-Stokes (RANS) equations with renormalization group (RNG) k-ϵ turbulence model and volume-of-fluid (VOF) for free surface tracking] to predict the transient basin flow structure and velocity profiles. Type III basins can perform adequately with a stepped chute despite the effects steps have on the relative role of each basin element. It is concluded that the classic Type III basin design, based upon methodology by reclamation specific to smooth chutes, can be hydraulically improved for the case of stepped chutes for design and adverse flow conditions using the information presented herein.},
  language  = {en}
}
@inproceedings{KerpenBungValeroetal.2016,
  author    = {Kerpen, Nils B. and Bung, Daniel B. and Valero, Daniel and Schlurmann, Torsten},
  title     = {Energy dissipation within the wave run-up at stepped revetments},
  series = {8th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering, Qingdao, China},
  booktitle = {8th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering, Qingdao, China},
  pages     = {6 Seiten},
  year      = {2016},
  language  = {en}
}
@article{KerpenBungValeroetal.2017,
  author    = {Kerpen, Nils B. and Bung, Daniel B. and Valero, Daniel and Schlurmann, Torsten},
  title     = {Energy dissipation within the wave run-up at stepped revetments},
  series = {Journal of Ocean University of China},
  volume    = {16},
  journal   = {Journal of Ocean University of China},
  number    = {4},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1993-5021},
  doi       = {10.1007/s11802-017-3355-z},
  pages     = {649 -- 654},
  year      = {2017},
  language  = {en}
}
@inproceedings{KuhnhenneDoeringPyschnyetal.2012,
  author    = {Kuhnhenne, Markus and D{\"o}ring, Bernd and Pyschny, Dominik and Feldmann, Markus},
  title     = {Energy efficient sandwich construction},
  series = {Proceedings of the VI International Congress on Architectural Envelopes : 20.6. - 22.6.2012, San Sebastian, Spain},
  booktitle = {Proceedings of the VI International Congress on Architectural Envelopes : 20.6. - 22.6.2012, San Sebastian, Spain},
  publisher = {ICAE},
  organization    = {International Congress on Architectural Envelopes <6, 2012, San Sebastian>},
  pages     = {277 -- 285},
  year      = {2012},
  language  = {en}
}
@article{BienerSasse1988,
  author    = {Biener, Ernst and Sasse, T.},
  title     = {Experience with new techniques in slurry cutoff wall construction},
  series = {ISWA 88, proceedings of the 5th International Solid Wastes Conference : September 11 - 16th, 1988, Copenhagen, Denmark / ed. by Lizzi Andersen ... - Vol. 1 : Oral presentations},
  journal   = {ISWA 88, proceedings of the 5th International Solid Wastes Conference : September 11 - 16th, 1988, Copenhagen, Denmark / ed. by Lizzi Andersen ... - Vol. 1 : Oral presentations},
  publisher = {Acad. Press},
  address   = {London [u.a.]},
  isbn      = {0-12-058451-4},
  pages     = {41 -- 46},
  year      = {1988},
  language  = {en}
}
@inproceedings{GogolinCarvalhoBungetal.2013,
  author    = {Gogolin, C. and Carvalho, R. and Bung, Daniel B. and Matos, J.},
  title     = {Experimental and numerical investigation of steady and unsteady flows in roughened channels with cross beams},
  series = {35th IAHR world congress : 8.-13.9.2013, Chengdu, China},
  booktitle = {35th IAHR world congress : 8.-13.9.2013, Chengdu, China},
  publisher = {Tsinghua Univ. Press},
  address   = {Beijing},
  organization    = {International Association for Hydraulic Engineering and Research},
  pages     = {Artikelkennnummer: A10837C},
  year      = {2013},
  language  = {en}
}
@inproceedings{Kirsch2009,
  author    = {Kirsch, Ansgar},
  title     = {Experimental and numerical investigation of the face stability of shallow tunnels in sand},
  series = {Safe tunnelling for the city and environment : proceedings of the World Tunnel Congress 2009, Budapest, Hungary, 23 to 28 September 2009 / organised by International Tunnelling and Underground Space Association ...},
  booktitle = {Safe tunnelling for the city and environment : proceedings of the World Tunnel Congress 2009, Budapest, Hungary, 23 to 28 September 2009 / organised by International Tunnelling and Underground Space Association ...},
  publisher = {Hungarian Tunnelling Association},
  address   = {Budapest},
  organization    = {World Tunnel Congress <2009, Budapest>},
  pages     = {1 -- 8},
  year      = {2009},
  language  = {en}
}
@inproceedings{SchlurmannBung2012,
  author    = {Schlurmann, Torsten and Bung, Daniel B.},
  title     = {Experimental investigation of flow-induced radial gate vibrations at Lower Subansiri dam},
  series = {Sixth Chinese-German Joint Symposium on Hydraulic and Ocean Engineering : JOINT 2012 : 23.-29.9.2012, Keelung},
  booktitle = {Sixth Chinese-German Joint Symposium on Hydraulic and Ocean Engineering : JOINT 2012 : 23.-29.9.2012, Keelung},
  organization    = {Chinese-German Joint Symposium on Hydraulic and Ocean Engineering <6, 2012, Keelung>},
  pages     = {7 -- 14},
  year      = {2012},
  language  = {en}
}
@article{Kirsch2010,
  author    = {Kirsch, Ansgar},
  title     = {Experimental investigation of the face stability of shallow tunnels in sand},
  series = {Acta Geotechnica},
  volume    = {5},
  journal   = {Acta Geotechnica},
  number    = {1},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1861-1125},
  doi       = {10.1007/s11440-010-0110-7},
  pages     = {43 -- 62},
  year      = {2010},
  abstract  = {Various models have been proposed for the prediction of the necessary support pressure at the face of a shallow tunnel. To assess their quality, the collapse of a tunnel face was modelled with small-scale model tests at single gravity. The development of the failure mechanism and the support force at the face in dry sand were investigated. The observed displacement patterns show a negligible influence of overburden on the extent and evolution of the failure zone. The latter is significantly influenced, though, by the initial density of the sand: in dense sand a chimney-wedge-type collapse mechanism developed, which propagated towards the soil surface. Initially, loose sand did not show any discrete collapse mechanism. The necessary support force was neither influenced by the overburden nor the initial density. A comparison with quantitative predictions by several theoretical models showed that the measured necessary support pressure is overestimated by most of the models. Those by Vermeer/Ruse and L{\´e}ca/Dormieux showed the best agreement to the measurements.},
  language  = {en}
}
@inproceedings{SpasovDoeringGriffin2007,
  author    = {Spasov, Yulian and D{\"o}ring, Bernd and Griffin, Allan},
  title     = {Exploiting the thermal mass in an energy efficient building - a comparison exercise between IES Apache and TRNSYS models},
  series = {Clima 2007 WellBeing Indoors: 9th Rehva World Congress, 10-14 June 2007, Helsinki, Finland : proceedings},
  booktitle = {Clima 2007 WellBeing Indoors: 9th Rehva World Congress, 10-14 June 2007, Helsinki, Finland : proceedings},
  address   = {Helsinki},
  isbn      = {978-952-99898-2-9},
  pages     = {1 -- 7},
  year      = {2007},
  language  = {en}
}
@article{HoettgesFeldhausBrockhausetal.1992,
  author    = {H{\"o}ttges, J{\"o}rg and Feldhaus, R. and Brockhaus, T. and Rouv{\´e}, Gerhard},
  title     = {Finite Element Simulation of Flow and Pollution Transport applied to a Part of the River Rhine / Feldhaus, R.; J. H{\"o}ttges, T. Brockhaus; G. Rouv{\´e}},
  series = {Hydraulic and environmental modelling : proceedings of the Second International Conference on Hydraulic and Environmental Modelling of Coastal, Estuarine, and River Waters / [IAHR-AIRH]. Ed. by R. A. Falconer},
  journal   = {Hydraulic and environmental modelling : proceedings of the Second International Conference on Hydraulic and Environmental Modelling of Coastal, Estuarine, and River Waters / [IAHR-AIRH]. Ed. by R. A. Falconer},
  publisher = {Ashgate},
  address   = {Aldershot, Hants, UK [u.a.]},
  year      = {1992},
  language  = {en}
}
@inproceedings{OertelBungSchlenkhoff2009,
  author    = {Oertel, M. and Bung, Daniel B. and Schlenkhoff, Andreas},
  title     = {Flash flood awareness and prevention},
  series = {Water engineering for sustainable environment : 33rd IAHR congress ; 9 - 14 August 2009, Vancouver, British Columbia, Canada},
  booktitle = {Water engineering for sustainable environment : 33rd IAHR congress ; 9 - 14 August 2009, Vancouver, British Columbia, Canada},
  organization    = {International Association for Hydraulic Engineering and Research},
  isbn      = {9789078046080},
  pages     = {1 CD-ROM},
  year      = {2009},
  language  = {en}
}
@inproceedings{BungOertelSchlenkhoffetal.2010,
  author    = {Bung, Daniel B. and Oertel, M. and Schlenkhoff, A. and Schlurmann, Torsten},
  title     = {Flash flood awareness and prevention in Germany},
  series = {Early warning for flash floods : international workshop, Praha 2011 : workshop proceedings},
  booktitle = {Early warning for flash floods : international workshop, Praha 2011 : workshop proceedings},
  editor    = {Obrusnik, Ivan},
  organization    = {Czech Hydrometeorological Institute},
  isbn      = {978-80-86690-91-9},
  pages     = {34 -- 40},
  year      = {2010},
  language  = {en}
}
@inproceedings{DoeringKuhnhenneFeldmann2011,
  author    = {D{\"o}ring, Bernd and Kuhnhenne, Markus and Feldmann, Markus},
  title     = {Floor systems - key elements for sustainable multi-storey buildings},
  series = {SB11 Helsinki World Sustainable Building Conference : 18. - 21.10.2011},
  booktitle = {SB11 Helsinki World Sustainable Building Conference : 18. - 21.10.2011},
  organization    = {World Sustainable Building Conference <2011, Helsinki>},
  pages     = {1 -- 6},
  year      = {2011},
  language  = {en}
}
@incollection{FeldmannDoeringPyschny2016,
  author    = {Feldmann, M. and D{\"o}ring, Bernd and Pyschny, D.},
  title     = {Floor systems; Sustainabilty analyses and assessments of steel bridges},
  series = {Sustainable steel buildings : a practical guide for structures and envelopes},
  booktitle = {Sustainable steel buildings : a practical guide for structures and envelopes},
  publisher = {Wiley Blackwell},
  address   = {Chichester, West Sussex},
  isbn      = {978-1-118-74079-8 (PDF)},
  pages     = {198 -- 223},
  year      = {2016},
  language  = {en}
}
@inproceedings{BungValero2017,
  author    = {Bung, Daniel B. and Valero, Daniel},
  title     = {FlowCV - An open-source toolbox for computer vision applications in turbulent flows},
  series = {Proceedings of the 37th IAHR World Congress August 13 - 18, 2017, Kuala Lumpur, Malaysia},
  booktitle = {Proceedings of the 37th IAHR World Congress August 13 - 18, 2017, Kuala Lumpur, Malaysia},
  issn      = {2521-716X},
  pages     = {5356 -- 5365},
  year      = {2017},
  language  = {en}
}
@inproceedings{MuellerHueben2008,
  author    = {M{\"u}ller, Karsten and H{\"u}ben, Susanne},
  title     = {From rehabilitation strategy up to formation of lots : implementation of a computer-aided decision support system},
  series = {11th International Conference on Urban Drainage, Edinburgh, Scotland, UK, 31st August to 5th September 2008},
  booktitle = {11th International Conference on Urban Drainage, Edinburgh, Scotland, UK, 31st August to 5th September 2008},
  pages     = {12 S. : graph. Darst.},
  year      = {2008},
  language  = {en}
}
@article{KerresGredigkHoffmannJatheetal.2020,
  author    = {Kerres, Karsten and Gredigk-Hoffmann, Sylvia and Jathe, R{\"u}diger and Orlik, Stefan and Sariyildiz, Mustafa and Schmidt, Torsten and Sympher, Klaus-Jochen and Uhlenbroch, Adrian},
  title     = {Future approaches for sewer system condition assessment},
  series = {Water Practice \& Technology},
  journal   = {Water Practice \& Technology},
  number    = {15 (2)},
  publisher = {IWA Publishing},
  address   = {London},
  issn      = {1751-231X},
  doi       = {10.2166/wpt.2020.027},
  pages     = {386 -- 393},
  year      = {2020},
  abstract  = {Different analytical approaches exist to describe the structural substance or wear reserve of sewer systems. The aim is to convert engineering assessments of often complex defect patterns into computational algorithms and determine a substance class for a sewer section or manhole. This analytically determined information is essential for strategic rehabilitation planning processes up to network level, as it corresponds to the most appropriate rehabilitation type and can thus provide decision-making support. Current calculation methods differ clearly from each other in parts, so that substance classes determined by the different approaches are only partially comparable with each other. The objective of the German R\&D cooperation project 'SubKanS' is to develop a methodology for classifying the specific defect patterns resulting from the interaction of all the individual defects, and their severities and locations. The methodology takes into account the structural substance of sewer sections and manholes, based on real data and theoretical considerations analogous to the condition classification of individual defects. The result is a catalogue of defect patterns and characteristics, as well as associated structural substance classifications of sewer systems (substance classes). The methodology for sewer system substance classification is developed so that the classification of individual defects can be transferred into a substance class of the sewer section or manhole, eventually taking into account further information (e.g. pipe material, nominal diameter, etc.). The result is a validated methodology for automated sewer system substance classification.},
  language  = {en}
}
@article{BienerBoykenSasseetal.1999,
  author    = {Biener, Ernst and Boyken, P. and Sasse, T. and Arnold, J.},
  title     = {Geotechnical aspects of the construction of the integrated harbour sludge management system in Bremen-Seehausen / P. Boyken ; E. Biener ; T. Sasse ; J. Arnold},
  series = {Geotechnical engineering for transportation infrastructure : proceedings of the twelfth European Conference on Soil Mechanics and Geotechnical Engineering, Amsterdam, Netherlands, 7 - 10 June 1999 ; theory and practice, planning and design, construction and maintenance. - Vol. 2},
  journal   = {Geotechnical engineering for transportation infrastructure : proceedings of the twelfth European Conference on Soil Mechanics and Geotechnical Engineering, Amsterdam, Netherlands, 7 - 10 June 1999 ; theory and practice, planning and design, construction and maintenance. - Vol. 2},
  publisher = {Balkema},
  address   = {Rotterdam},
  isbn      = {90-5809-049-3},
  pages     = {909 -- 914},
  year      = {1999},
  language  = {en}
}
@inproceedings{KirschFelberMarcheretal.2014,
  author    = {Kirsch, Ansgar and Felber, W. and Marcher, Thomas and Fuchs, W.},
  title     = {Geotechnical challenges during design and construction of a ski resort in Azerbaijan},
  series = {Geotechnics of roads and railways : proceedings of the 15th Danube - European Conference on Geotechnical Engineering : 9-11 September 2014, Vienna, Austria},
  booktitle = {Geotechnics of roads and railways : proceedings of the 15th Danube - European Conference on Geotechnical Engineering : 9-11 September 2014, Vienna, Austria},
  publisher = {{\"O}IAV - {\"O}sterreichischer Ingenieur- und Architekten-Verein},
  address   = {Wien},
  organization    = {Danube - European Conference on Geotechnical Engineering <15, 2014, Wien>},
  isbn      = {978-3-902593-01-6},
  pages     = {757 -- 762},
  year      = {2014},
  language  = {en}
}
@incollection{GrossHeckenRenz1999,
  author    = {Groß, Rolf Fritz and Hecken, M. and Renz, Ulrich},
  title     = {Hot gas filtration with ceramic filter candles: experimental and numerical investigations on fluid flow during element cleaning},
  series = {High temperature gas cleaning. Vol. 2},
  booktitle = {High temperature gas cleaning. Vol. 2},
  editor    = {Dittler, A. and Hemmer, G. and Kasper, G.},
  publisher = {KIT Institut f{\"u}r Mechanische Verfahrenstechnik und Mechanik},
  address   = {Karlsruhe},
  isbn      = {3-9805220-1-6},
  pages     = {862 -- 873},
  year      = {1999},
  abstract  = {Ceramic hot gas filters are widely used in combined cycles based on pressurised fluidised beds. They fulfil most of the demands with respect to cleaning efficiency and long time durability, but their operation regarding the consumption of pulse gas and energy still has to be optimised. Experimental investigations were carried out to measure the flow field, the pressure and the gas temperature inside the filter candle during pulse jet cleaning. These results are compared with the results of a numerical procedure based on a solution of the two - dimensional conservation equations for momentum and energy. The observed difficulties handling different flow regimes like highly turbulent flow as well as Darcy flow simultaneously are discussed.},
  language  = {en}
}
@inproceedings{ValeroBung2015,
  author    = {Valero, Daniel and Bung, Daniel B.},
  title     = {Hybrid investigation of air transport processes in moderately sloped stepped spillway flows},
  series = {E-proceedings of the 36th IAHR World Congress 28 June - 3 July, 2015, The Hague, the Netherlands},
  booktitle = {E-proceedings of the 36th IAHR World Congress 28 June - 3 July, 2015, The Hague, the Netherlands},
  organization    = {IAHR World Congress <36, 2015, Den Haag>},
  pages     = {1 -- 10},
  year      = {2015},
  language  = {en}
}
@inproceedings{BungTullis2018,
  author    = {Bung, Daniel B. and Tullis, Blake},
  title     = {Hydraulic Structures - ISHS2018 in Perspective},
  series = {7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May},
  booktitle = {7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May},
  isbn      = {978-0-692-13277-7},
  doi       = {10.15142/T3WH2B},
  pages     = {9 seiten},
  year      = {2018},
  language  = {en}
}
@article{ErpicumCrookstonBombardellietal.2021,
  author    = {Erpicum, Sebastien and Crookston, Brian M. and Bombardelli, Fabian and Bung, Daniel B. and Felder, Stefan and Mulligan, Sean and Oertel, Mario and Palermo, Michele},
  title     = {Hydraulic structures engineering: An evolving science in a changing world},
  series = {Wires Water},
  volume    = {8},
  journal   = {Wires Water},
  number    = {2},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {2049-1948},
  doi       = {10.1002/wat2.1505},
  year      = {2021},
  language  = {en}
}
@inproceedings{AhmedSchlenkhoffBung2011,
  author    = {Ahmed, H. and Schlenkhoff, A. and Bung, Daniel B.},
  title     = {Hydrodynamic characteristics of vertical slotted wall breakwaters},
  series = {Balance and uncertainty - water in a changing world : proceedings of the 34th IAHR world congress ; 33rd Hydrology and Water Resources Symposium ; 10th Conference on Hydraulics in Water Engineering ; 26 June - 1 July 2011, Brisbane, Australia},
  booktitle = {Balance and uncertainty - water in a changing world : proceedings of the 34th IAHR world congress ; 33rd Hydrology and Water Resources Symposium ; 10th Conference on Hydraulics in Water Engineering ; 26 June - 1 July 2011, Brisbane, Australia},
  organization    = {International Association for Hydraulic Engineering and Research},
  isbn      = {978-0-85825-868-6},
  pages     = {1179 -- 1186},
  year      = {2011},
  language  = {en}
}
@inproceedings{BungValero2015,
  author    = {Bung, Daniel B. and Valero, Daniel},
  title     = {Image processing for bubble image velocimetry in self-aerated flows},
  series = {E-proceedings of the 36th IAHR World Congress 28 June - 3 July, 2015, The Hague, the Netherlands},
  booktitle = {E-proceedings of the 36th IAHR World Congress 28 June - 3 July, 2015, The Hague, the Netherlands},
  organization    = {IAHR World Congress <36, 2015, Den Haag>},
  pages     = {1 -- 8},
  year      = {2015},
  language  = {en}
}
@inproceedings{BungValero2016,
  author    = {Bung, Daniel B. and Valero, Daniel},
  title     = {Image processing techniques for velocity estimation in highly aerated flows: bubble image velocimetry vs. optical flow},
  series = {Sustainable Hydraulics in the Era of Global Change : Proceedings of the 4th IAHR Europe Congress (Liege, Belgium, 27-29 July 2016)},
  booktitle = {Sustainable Hydraulics in the Era of Global Change : Proceedings of the 4th IAHR Europe Congress (Liege, Belgium, 27-29 July 2016)},
  editor    = {Dewals, Benjamin},
  publisher = {CRC Press},
  isbn      = {978-1-138-02977-4},
  doi       = {10.1201/b21902-31},
  pages     = {151 -- 157},
  year      = {2016},
  language  = {en}
}
@inproceedings{DoeringFeldmannKuhnhenneetal.2008,
  author    = {D{\"o}ring, Bernd and Feldmann, Markus and Kuhnhenne, Markus and Hellberg, Jan},
  title     = {Implementing a thermal activation system into a light-weight steel deck element},
  series = {Eurosteel 2008 : 5th European Conference on Steel and Composite Structures ; research, practice, new materials ; 3rd to 5th September 2008, Graz, Austria / ed. by Robert Ofner ...},
  booktitle = {Eurosteel 2008 : 5th European Conference on Steel and Composite Structures ; research, practice, new materials ; 3rd to 5th September 2008, Graz, Austria / ed. by Robert Ofner ...},
  publisher = {ECCS, European Convention for Construction Steelwork},
  address   = {Brussels},
  organization    = {Eurosteel <5, 2008, Graz>},
  isbn      = {92-0147-000-90},
  pages     = {941 -- 946},
  year      = {2008},
  language  = {en}
}
@inproceedings{DoeringSedlacek2004,
  author    = {D{\"o}ring, Bernd and Sedlacek, Gerhard},
  title     = {Improvement of thermal comfort in light weight buildings made of steel with new concepts for slab systems},
  series = {10th Nordic Steel Construction Conference, Copenhagen, Denmark 7-9. June 2004: NSCC 2004 : proceedings},
  booktitle = {10th Nordic Steel Construction Conference, Copenhagen, Denmark 7-9. June 2004: NSCC 2004 : proceedings},
  publisher = {Danish Steel Inst.},
  address   = {Copenhagen},
  organization    = {Nordic Steel Construction Conference <10, 2004, Copenhagen>},
  pages     = {35 -- 44},
  year      = {2004},
  language  = {en}
}
@article{KuhnhenneRegerPyschnyetal.2020,
  author    = {Kuhnhenne, Markus and Reger, Vitali and Pyschny, Dominik and D{\"o}ring, Bernd},
  title     = {Influence of airtightness of steel sandwich panel joints on heat losses},
  series = {E3S Web of Conferences 12th Nordic Symposium on Building Physics (NSB 2020)},
  volume    = {172},
  journal   = {E3S Web of Conferences 12th Nordic Symposium on Building Physics (NSB 2020)},
  number    = {Art. 05008},
  publisher = {EDP Sciences},
  address   = {Les Ulis},
  doi       = {10.1051/e3sconf/202017205008},
  pages     = {6},
  year      = {2020},
  abstract  = {Energy saving ordinances requires that buildings must be designed in such a way that the heat transfer surface including the joints is permanently air impermeable. The prefabricated roof and wall panels in lightweight steel constructions are airtight in the area of the steel covering layers. The sealing of the panel joints contributes to fulfil the comprehensive requirements for an airtight building envelope. To improve the airtightness of steel sandwich panels, additional sealing tapes can be installed in the panel joint. The influence of these sealing tapes was evaluated by measurements carried out by the RWTH Aachen University - Sustainable Metal Building Envelopes. Different installation situations were evaluated by carrying out airtightness tests for different joint distances. In addition, the influence on the heat transfer coefficient was also evaluated using the Finite Element Method (FEM). The combination of obtained air volume flow and transmission losses enables to create an "effective heat transfer coefficient" due to transmission and infiltration. This summarizes both effects in one value and is particularly helpful for approximate calculations on energy efficiency.},
  language  = {en}
}
@inproceedings{ZillerDoering2003,
  author    = {Ziller, Claudia and D{\"o}ring, Bernd},
  title     = {Influence of the external dynamic wind pressure on the ventilation of double facades},
  series = {Research in building physics: proceedings of the Second International Conference on Building Physics : Leuven, Belgium, 14-18 September 2003},
  booktitle = {Research in building physics: proceedings of the Second International Conference on Building Physics : Leuven, Belgium, 14-18 September 2003},
  editor    = {Carmeliet, J. and Hens, H. and Vermeir, G.},
  publisher = {Taylor and Francis},
  address   = {Hoboken},
  organization    = {International Conference on Building Physics <2, 2003, Leuven>},
  isbn      = {9058095657, 9789058095657},
  pages     = {527 -- 533},
  year      = {2003},
  language  = {en}
}
@article{OertelBung2012,
  author    = {Oertel, Mario and Bung, Daniel B.},
  title     = {Initial stage of two-dimensional dam-break waves: laboratory versus VOF},
  series = {Journal of hydraulic research},
  volume    = {50},
  journal   = {Journal of hydraulic research},
  number    = {1},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {1814-2079 (E-Journal); 0022-1686 (Print)},
  doi       = {10.1080/00221686.2011.639981},
  pages     = {89 -- 97},
  year      = {2012},
  abstract  = {Since several decades, dam-break waves have been of main research interest. Mathematical approaches have been developed by analytical, physical and numerical models within the past 120 years. During the past 10 years, the number of research investigations has increased due to improved measurement techniques as well as significantly increased computer memories and performances. In this context, the present research deals with the initial stage of two-dimensional dam-break waves by comparing physical and numerical model results as well as analytical approaches. High-speed images and resulting particle image velocimetry calculations are thereby compared with the numerical volume-of-fluid (VOF) method, included in the commercial code FLOW-3D. Wave profiles and drag forces on placed obstacles are analysed in detail. Generally, a good agreement between the laboratory and VOF results is found.},
  language  = {en}
}
@article{BienerBoykenSasse1997,
  author    = {Biener, Ernst and Boyken, P. and Sasse, T.},
  title     = {Integrated dredged material management system of Bremen-Seehausen},
  series = {Sardinia 97 : proceedings ; [13 - 17 October 1997, S. Margherita di Pula - Cagliari, Sardinia, Italy] / Sixth International Landfill Symposium. Ed.: Thomas H. Christensen... - Bd. 5 : Landfill regulations, waste characteristics, landfilling in middle and lower income countries, industrial wastes and monolandfills},
  journal   = {Sardinia 97 : proceedings ; [13 - 17 October 1997, S. Margherita di Pula - Cagliari, Sardinia, Italy] / Sixth International Landfill Symposium. Ed.: Thomas H. Christensen... - Bd. 5 : Landfill regulations, waste characteristics, landfilling in middle and lower income countries, industrial wastes and monolandfills},
  publisher = {CISA, Environmental Sanitary Engineering Centre},
  address   = {Cagliari},
  pages     = {497 -- 502},
  year      = {1997},
  language  = {en}
}
@inproceedings{SchulzeBuxlohGross2021,
  author    = {Schulze-Buxloh, Lina and Groß, Rolf Fritz},
  title     = {Interdisciplinary Course Smart Building Engineering: A new approach of teaching freshmen in remote teamwork project under pandemic restrictions},
  series = {New Perspectives in Science Education -International Conference (virtual event, 18-19 March 2021)},
  booktitle = {New Perspectives in Science Education -International Conference (virtual event, 18-19 March 2021)},
  publisher = {Filodiritto},
  address   = {Bologna},
  pages     = {4 Seiten},
  year      = {2021},
  abstract  = {In the context of the Corona pandemic and its impact on teaching like digital lectures and exercises a new concept especially for freshmen in demanding courses of Smart Building Engineering became necessary. As there were hardly any face-to-face events at the university, the new teaching concept should enable a good start into engineering studies under pandemic conditions anyway and should also replace the written exam at the end. The students should become active themselves in small teams instead of listening passively to a lecture broadcast online with almost no personal contact. For this purpose, a role play was developed in which the freshmen had to work out a complete solution to the realistic problem of designing, construction planning and implementing a small guesthouse. Each student of the team had to take a certain role like architect, site manager, BIM-manager, electrician and the technitian for HVAC installations. Technical specifications must be complied with, as well as documentation, time planning and cost estimate. The final project folder had to contain technical documents like circuit diagrams for electrical components, circuit diagrams for water and heating, design calculations and components lists. On the other hand construction schedule, construction implementation plan, documentation of the construction progress and minutes of meetings between the various trades had to be submitted as well. In addition to the project folder, a model of the construction project must also be created either as a handmade model or as a digital 3D-model using Computer-aided design (CAD) software. The first steps in the field of Building information modelling (BIM) had also been taken by creating a digital model of the building showing the current planning status in real time as a digital twin. This project turned out to be an excellent training of important student competencies like teamwork, communication skills, and self -organisation and also increased motivation to work on complex technical questions. The aim of giving the student a first impression on the challenges and solutions in building projects with many different technical trades and their points of view was very well achieved and should be continued in the future.},
  language  = {en}
}
@inproceedings{ValeroBung2016,
  author    = {Valero, Daniel and Bung, Daniel B.},
  title     = {Interfacial velocity estimation in highly aerated stepped spillway flows with a single tip fibre optical probe and Artificial Neural Networks},
  series = {6th IAHR International Junior Researcher and Engineer Workshop on Hydraulic Structures, May 30th to June 1st 2016. L{\"u}beck, Germany},
  booktitle = {6th IAHR International Junior Researcher and Engineer Workshop on Hydraulic Structures, May 30th to June 1st 2016. L{\"u}beck, Germany},
  doi       = {10.15142/T3Q590},
  pages     = {13 Seiten},
  year      = {2016},
  abstract  = {Air-water flows can be found in different engineering applications: from nuclear engineering to huge hydraulic structures. In this paper, a single tip fibre optical probe has been used to record high frequency (over 1 MHz) phase functions at different locations of a stepped spillway. These phase functions have been related to the interfacial velocities by means of Artificial Neural Networks (ANN) and the measurements of a classical double tip conductivity probe. Special attention has been put to the input selection and the ANN dimensions. Finally, ANN have shown to be able to link the signal rising times and plateau shapes to the air-water interfacial velocity.},
  language  = {en}
}
@inproceedings{HeinzOertelBung2010,
  author    = {Heinz, G. and Oertel, Mario and Bung, Daniel B.},
  title     = {Investigations on a cooling water system for a gas tubine facility concerning air vortexes and sediment transport},
  series = {Hydraulic structures: useful water harvesting systems or relics? : Third International Junior Researcher and Engineer Workshop on Hydraulic Structures (IJREWHS'10) : Edinburgh, Scotland, U.K., 2-3 May 2010},
  booktitle = {Hydraulic structures: useful water harvesting systems or relics? : Third International Junior Researcher and Engineer Workshop on Hydraulic Structures (IJREWHS'10) : Edinburgh, Scotland, U.K., 2-3 May 2010},
  editor    = {Janssen, Robert},
  publisher = {School of Civil Engineering, The University of Queensland},
  address   = {Brisbane},
  organization    = {International Junior Researcher and Engineer Workshop on Hydraulic Structures <3, 2010, Edinburgh>},
  isbn      = {9781742720159},
  pages     = {109 -- 116},
  year      = {2010},
  language  = {en}
}
@inproceedings{UibelBlass2013,
  author    = {Uibel, Thomas and Blaß, Hans-Joachim},
  title     = {Joints with Dowel Type Fasteners in CLT structures},
  series = {Focus solid timber solutions : European Conference on Cross Laminated Timber (CLT); May 21-22, 2013, Graz University of Technology, Austria},
  booktitle = {Focus solid timber solutions : European Conference on Cross Laminated Timber (CLT); May 21-22, 2013, Graz University of Technology, Austria},
  organization    = {European Conference on Cross Laminated Timber <2013, Graz>},
  isbn      = {978-1-85790-181-8 ; 1-85790-181-9},
  pages     = {119 -- 134},
  year      = {2013},
  language  = {en}
}
@incollection{Bung2015,
  author    = {Bung, Daniel B.},
  title     = {Laboratory models of free-surface flows},
  series = {Rivers - physical, fluvial and environmental processes},
  booktitle = {Rivers - physical, fluvial and environmental processes},
  editor    = {Rowinski, Pawel},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-17718-2 ; 978-3-319-17719-9},
  doi       = {10.1007/978-3-319-17719-9_9},
  pages     = {213 -- 228},
  year      = {2015},
  abstract  = {Hydraulic modeling is the classical approach to investigate and describe complex fluid motion. Many empirical formulas in the literature used for the hydraulic design of river training measures and structures have been developed using experimental data from the laboratory. Although computer capacities have increased to a high level which allows to run complex numerical simulations on standard workstation nowadays, non-standard design of structures may still raise the need to perform physical model investigations. These investigations deliver insight into details of flow patterns and the effect of varying boundary conditions. Data from hydraulic model tests may be used for calibration of numerical models as well. As the field of hydraulic modeling is very complex, this chapter intends to give a short overview on capacities and limits of hydraulic modeling in regard to river flows and hydraulic structures only. The reader shall get a first idea of modeling principles and basic considerations. More detailed information can be found in the references.},
  language  = {en}
}
@inproceedings{FeldmannPyschnyDoeringetal.2012,
  author    = {Feldmann, Markus and Pyschny, D. and D{\"o}ring, Bernd and Kuhnhenne, Markus},
  title     = {Life cycle assessment of steel constructions},
  series = {Life-cycle and sustainability of civil infrastructure systems : proceedings of the Third International Symposium on Life-Cycle Civil Engineering (IALCCE'12) : Vienna, Austria, October 3-6, 2012},
  booktitle = {Life-cycle and sustainability of civil infrastructure systems : proceedings of the Third International Symposium on Life-Cycle Civil Engineering (IALCCE'12) : Vienna, Austria, October 3-6, 2012},
  publisher = {Taylor and Francis},
  address   = {Hoboken},
  organization    = {International Symposium on Life-Cycle Civil Engineering <3, 2012, Wien>},
  isbn      = {978-0-203-10336-4},
  pages     = {321},
  year      = {2012},
  language  = {en}
}
@inproceedings{UibelBlass2006,
  author    = {Uibel, Thomas and Blaß, Hans Joachim},
  title     = {Load Carrying Capacity of Joints with Dowel Type Fasteners in Solid Wood Panels},
  series = {Proceedings. CIB-W18 Meeting 2006, Florence, Italy 2006},
  booktitle = {Proceedings. CIB-W18 Meeting 2006, Florence, Italy 2006},
  issn      = {0945-6996},
  pages     = {1 -- 10},
  year      = {2006},
  language  = {en}
}
@inproceedings{BungOertel2014,
  author    = {Bung, Daniel B. and Oertel, Mario},
  title     = {Manipulation of non-aerated cavity flow on a stepped spillway model},
  series = {3rd European IAHR Congress : April 14 - 16, 2014, Porto},
  booktitle = {3rd European IAHR Congress : April 14 - 16, 2014, Porto},
  publisher = {Univ. of Porto},
  address   = {Porto},
  organization    = {International Association of Hydro-Environment Engineering and Research},
  year      = {2014},
  language  = {en}
}
@article{HoettgesArnoldRouve1994,
  author    = {H{\"o}ttges, J{\"o}rg and Arnold, Uwe and Rouv{\´e}, Gerhard},
  title     = {Measurement of transverse mixing using digital image acquisition},
  series = {Mixing and transport in the environment : a memorial volume for Catherine M. Allen (1954-1991) / ed. by Keith J. Beven},
  journal   = {Mixing and transport in the environment : a memorial volume for Catherine M. Allen (1954-1991) / ed. by Keith J. Beven},
  publisher = {Wiley},
  address   = {Chichester [u.a.]},
  isbn      = {0471941425},
  pages     = {XVI, 458 S., [8] Bl : Ill. (z.T. farb.), graph. Da},
  year      = {1994},
  language  = {en}
}
@article{LeandroBungCarvalho2014,
  author    = {Leandro, J. and Bung, Daniel B. and Carvalho, R.},
  title     = {Measuring void fraction and velocity fields of a stepped spillway for skimming flow using non-intrusive methods},
  series = {Experiments in fluids},
  journal   = {Experiments in fluids},
  number    = {55},
  publisher = {Springer Nature},
  address   = {Heidelberg},
  issn      = {0723-4864 (Print) ; 1432-1114 (Online)},
  doi       = {10.1007/s00348-014-1732-6},
  pages     = {Art. 1732},
  year      = {2014},
  language  = {en}
}
@inproceedings{BuehlerLeandroBungetal.2015,
  author    = {B{\"u}hler, P. and Leandro, J. and Bung, Daniel B. and Lopes, P. and Carvalho, R.},
  title     = {Measuring void fraction of a stepped spillway with non-intrusive methods using different image resolutions},
  series = {2nd International Workshop on Hydraulic Structures : Data Validation : Coimbra, Portugal, 8-9 May 2015},
  booktitle = {2nd International Workshop on Hydraulic Structures : Data Validation : Coimbra, Portugal, 8-9 May 2015},
  organization    = {International Workshop on Hydraulic Structures : Data Validation <2, 2015, Coimbra>},
  pages     = {1 -- 8},
  year      = {2015},
  language  = {en}
}
@book{Kettern1993,
  author    = {Kettern, J{\"u}rgen},
  title     = {Mechanical and biological treatment of waste after separate collection / R. Damiecki; J.T. Kettern. Italian Ministry of Enviroment},
  publisher = {Eigenverlag},
  address   = {Caglieri},
  pages     = {16 S.},
  year      = {1993},
  language  = {en}
}
@inproceedings{SchulzeBuxlohGross2021,
  author    = {Schulze-Buxloh, Lina and Groß, Rolf Fritz},
  title     = {Miniature urban farming plant: a complex educational "Toy" for engineering students},
  series = {The Future of Education 11th Edition 2021},
  booktitle = {The Future of Education 11th Edition 2021},
  pages     = {4 Seiten},
  year      = {2021},
  abstract  = {Urban farming is an innovative and sustainable way of food production and is becoming more and more important in smart city and quarter concepts. It also enables the production of certain foods in places where they usually dare not produced, such as production of fish or shrimps in large cities far away from the coast. Unfortunately, it is not always possible to show students such concepts and systems in real life as part of courses: visits of such industry plants are sometimes not possible because of distance or are permitted by the operator for hygienic reasons. In order to give the students the opportunity of getting into contact with such an urban farming system and its complex operation, an industrial urban farming plant was set up on a significantly smaller scale. Therefore, all needed technical components like water aeriation, biological and mechanical filtration or water circulation have been replaced either by aquarium components or by self-designed parts also using a 3D-printer. Students from different courses like mechanical engineering, smart building engineering, biology, electrical engineering, automation technology and civil engineering were involved in this project. This "miniature industrial plant" was also able to start operation and has now been running for two years successfully. Due to Corona pandemic, home office and remote online lectures, the automation of this miniature plant should be brought to a higher level in future for providing a good control over the system and water quality remotely. The aim of giving the student a chance to get to know the operation of an urban farming plant was very well achieved and the students had lots of fun in "playing" and learning with it in a realistic way.},
  language  = {en}
}
@article{BlankeHagenkampDoeringetal.2021,
  author    = {Blanke, Tobias and Hagenkamp, Markus and D{\"o}ring, Bernd and G{\"o}ttsche, Joachim and Reger, Vitali and Kuhnhenne, Markus},
  title     = {Net-exergetic, hydraulic and thermal optimization of coaxial heat exchangers using fixed flow conditions instead of fixed flow rates},
  series = {Geothermal Energy},
  volume    = {9},
  journal   = {Geothermal Energy},
  number    = {Article number: 19},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {2195-9706},
  doi       = {10.1186/s40517-021-00201-3},
  pages     = {23 Seiten},
  year      = {2021},
  abstract  = {Previous studies optimized the dimensions of coaxial heat exchangers using constant mass fow rates as a boundary condition. They show a thermal optimal circular ring width of nearly zero. Hydraulically optimal is an inner to outer pipe radius ratio of 0.65 for turbulent and 0.68 for laminar fow types. In contrast, in this study, fow conditions in the circular ring are kept constant (a set of fxed Reynolds numbers) during optimization. This approach ensures fxed fow conditions and prevents inappropriately high or low mass fow rates. The optimization is carried out for three objectives: Maximum energy gain, minimum hydraulic efort and eventually optimum net-exergy balance. The optimization changes the inner pipe radius and mass fow rate but not the Reynolds number of the circular ring. The thermal calculations base on Hellstr{\"o}m's borehole resistance and the hydraulic optimization on individually calculated linear loss of head coefcients. Increasing the inner pipe radius results in decreased hydraulic losses in the inner pipe but increased losses in the circular ring. The net-exergy diference is a key performance indicator and combines thermal and hydraulic calculations. It is the difference between thermal exergy fux and hydraulic efort. The Reynolds number in the circular ring is instead of the mass fow rate constant during all optimizations. The result from a thermal perspective is an optimal width of the circular ring of nearly zero. The hydraulically optimal inner pipe radius is 54\% of the outer pipe radius for laminar fow and 60\% for turbulent fow scenarios. Net-exergetic optimization shows a predominant infuence of hydraulic losses, especially for small temperature gains. The exact result depends on the earth's thermal properties and the fow type. Conclusively, coaxial geothermal probes' design should focus on the hydraulic optimum and take the thermal optimum as a secondary criterion due to the dominating hydraulics.},
  language  = {en}
}
@article{BienerSasseArnoldetal.1999,
  author    = {Biener, Ernst and Sasse, T. and Arnold, J. and Woltering, S.},
  title     = {New treatment of harbour sludge in Bremen and Bremerhaven / E. Biener ; T. Sasse ; J. Arnold ; S. Woltering ; N. Binder},
  series = {Characterisation and treatment of sediments : Antwerpen, Belgium, September 15 - 17, 1999 ; [preceded by 12th International Harbour Congress] ; proceedings / CATS 4. Ed.: G. De Schutter. Organized by: Technologisch Instituut, Koninklijke Vlaamse Ingenieursvereniging},
  journal   = {Characterisation and treatment of sediments : Antwerpen, Belgium, September 15 - 17, 1999 ; [preceded by 12th International Harbour Congress] ; proceedings / CATS 4. Ed.: G. De Schutter. Organized by: Technologisch Instituut, Koninklijke Vlaamse Ingenieursvereniging},
  publisher = {Technolog. Inst.},
  address   = {Anvers},
  isbn      = {9076019118},
  pages     = {115 -- 122},
  year      = {1999},
  language  = {en}
}
@article{Bung2013,
  author    = {Bung, Daniel B.},
  title     = {Non-intrusive detection of air-water surface roughness in self-aerated chute flows},
  series = {Journal of hydraulic research},
  volume    = {Vol. 51},
  journal   = {Journal of hydraulic research},
  number    = {Iss. 3},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {1814-2079 (E-Journal); 0022-1686 (Print)},
  pages     = {322 -- 329},
  year      = {2013},
  language  = {en}
}
@inproceedings{Bung2011,
  author    = {Bung, Daniel B.},
  title     = {Non-intrusive measuring of air-water flow properties in self-aerated stepped spillway flow},
  series = {Balance and uncertainty - water in a changing world : proceedings of the 34th IAHR world congress ; 33rd Hydrology and Water Resources Symposium ; 10th Conference on Hydraulics in Water Engineering ; 26 June - 1 July 2011, Brisbane, Australia},
  booktitle = {Balance and uncertainty - water in a changing world : proceedings of the 34th IAHR world congress ; 33rd Hydrology and Water Resources Symposium ; 10th Conference on Hydraulics in Water Engineering ; 26 June - 1 July 2011, Brisbane, Australia},
  organization    = {International Association for Hydraulic Engineering and Research},
  isbn      = {978-0-85825-868-6},
  pages     = {2380 -- 2387},
  year      = {2011},
  language  = {en}
}
@inproceedings{Kirsch2010,
  author    = {Kirsch, Ansgar},
  title     = {Numerical investigation of the face stability of shallow tunnels in sand},
  series = {Numerical methods in geotechnical engineering : (NUMGE 2010) : proceedings of the seventh European Conference on Numerical Methods in Geotechnical Engineering, Trondheim, Norway, 2 - 4 June 2010 / ed. by Thomas Benz ...},
  booktitle = {Numerical methods in geotechnical engineering : (NUMGE 2010) : proceedings of the seventh European Conference on Numerical Methods in Geotechnical Engineering, Trondheim, Norway, 2 - 4 June 2010 / ed. by Thomas Benz ...},
  publisher = {Taylor and Francis},
  address   = {London},
  organization    = {European Conference on Numerical Methods in Geotechnical Engineering <7, 2010, Trondheim>},
  isbn      = {978-0-415-59239-0},
  pages     = {779 -- 784},
  year      = {2010},
  language  = {en}
}
@inproceedings{ValeroBungCrookstonetal.2016,
  author    = {Valero, Daniel and Bung, Daniel B. and Crookston, B. M. and Matos, J.},
  title     = {Numerical investigation of USBR type III stilling basin performance downstream of smooth and stepped spillways},
  series = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016},
  booktitle = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016},
  editor    = {Crookston, B. and Tullis, B.},
  isbn      = {978-1-884575-75-4},
  doi       = {10.15142/T340628160853},
  pages     = {635 -- 646},
  year      = {2016},
  language  = {en}
}
@inproceedings{KirschMarcher2010,
  author    = {Kirsch, Ansgar and Marcher, Thomas},
  title     = {Numerical prediction of time-dependent rock swelling based on an example of a major tunnel project in Ontario/Canada},
  series = {Numerical methods in geotechnical engineering : (NUMGE 2010) : proceedings of the seventh European Conference on Numerical Methods in Geotechnical Engineering, Trondheim, Norway, 2 - 4 June 2010 / ed. by Thomas Benz ...},
  booktitle = {Numerical methods in geotechnical engineering : (NUMGE 2010) : proceedings of the seventh European Conference on Numerical Methods in Geotechnical Engineering, Trondheim, Norway, 2 - 4 June 2010 / ed. by Thomas Benz ...},
  publisher = {Taylor and Francis},
  address   = {London},
  organization    = {European Conference on Numerical Methods in Geotechnical Engineering <7, 2010, Trondheim>},
  isbn      = {978-0-415-59239-0},
  pages     = {297 -- 302},
  year      = {2010},
  language  = {en}
}
@inproceedings{OertelBalmesBung2015,
  author    = {Oertel, Mario and Balmes, Jan P. and Bung, Daniel B.},
  title     = {Numerical simulation of erosion processes on crossbar block ramps},
  series = {E-proceedings of the 36th IAHR World Congress 28 June - 3 July, 2015, The Hague, the Netherlands},
  booktitle = {E-proceedings of the 36th IAHR World Congress 28 June - 3 July, 2015, The Hague, the Netherlands},
  organization    = {IAHR World Congress <36, 2015, Den Haag>},
  pages     = {1 -- 8},
  year      = {2015},
  language  = {en}
}
@article{ValeroVitiGualtieri2019,
  author    = {Valero, Daniel and Viti, Nicolo and Gualtieri, Carlo},
  title     = {Numerical Simulation of Hydraulic Jumps. Part 1: Experimental Data for Modelling Performance Assessment},
  series = {Water},
  volume    = {11},
  journal   = {Water},
  number    = {1},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2073-4441},
  doi       = {10.3390/w11010036},
  pages     = {Art. Nr. 36},
  year      = {2019},
  language  = {en}
}
@article{VitiValeroGualtieri2019,
  author    = {Viti, Nicolo and Valero, Daniel and Gualtieri, Carlo},
  title     = {Numerical Simulation of Hydraulic Jumps. Part 2: Recent Results and Future Outlook},
  series = {Water},
  volume    = {11},
  journal   = {Water},
  number    = {1},
  issn      = {2073-4441},
  doi       = {10.3390/w11010028},
  pages     = {Art. Nr. 28},
  year      = {2019},
  language  = {en}
}
@inproceedings{ValeroBungErpicumetal.2017,
  author    = {Valero, Daniel and Bung, Daniel B. and Erpicum, Sebastien and Dewals, Benjamin},
  title     = {Numerical study of turbulent oscillations around a cylinder: RANS capabilities and sensitivity analysis},
  series = {Proceedings of the 37th IAHR World Congress August 13 - 18, 2017, Kuala Lumpur, Malaysia},
  booktitle = {Proceedings of the 37th IAHR World Congress August 13 - 18, 2017, Kuala Lumpur, Malaysia},
  issn      = {2521-716X},
  pages     = {3126 -- 3135},
  year      = {2017},
  language  = {en}
}
@inproceedings{MuellerFischer2009,
  author    = {M{\"u}ller, Karsten and Fischer, B.},
  title     = {Objective condition assessment of sewer systems},
  series = {Strategic asset management of water supply and wastewater infrastructures : invited papers from the 2nd IWA Leading Edge Conference on Strategic Asset Management (LESAM), Lisbon, October [17 - 19] 2007 / ed. by Helene Alegre and Maria do C{\´e}u Almeida},
  booktitle = {Strategic asset management of water supply and wastewater infrastructures : invited papers from the 2nd IWA Leading Edge Conference on Strategic Asset Management (LESAM), Lisbon, October [17 - 19] 2007 / ed. by Helene Alegre and Maria do C{\´e}u Almeida},
  publisher = {IWA Publ.},
  address   = {London},
  isbn      = {9781843391869},
  pages     = {521 -- 534},
  year      = {2009},
  language  = {en}
}
@inproceedings{Bung2014,
  author    = {Bung, Daniel B.},
  title     = {Observations on non-aerated flow and air entrainment on moderately sloped stepped spillways},
  series = {7th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering : 8. - 12. Sept. 2014, Hannover},
  booktitle = {7th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering : 8. - 12. Sept. 2014, Hannover},
  organization    = {Chinese-German Joint Symposium on Hydraulic and Ocean Engineering <7, 2014, Hannover>},
  pages     = {1 -- 8},
  year      = {2014},
  language  = {en}
}
@article{ZhangValeroBungetal.2018,
  author    = {Zhang, G. and Valero, Daniel and Bung, Daniel B. and Chanson, H.},
  title     = {On the estimation of free-surface turbulence using ultrasonic sensors},
  series = {Flow Measurement and Instrumentation},
  volume    = {60},
  journal   = {Flow Measurement and Instrumentation},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0955-5986},
  doi       = {10.1016/j.flowmeasinst.2018.02.009},
  pages     = {171 -- 184},
  year      = {2018},
  abstract  = {Accurate determination of free-surface dynamics has attracted much research attention during the past decade and has important applications in many environmental and water related areas. In this study, the free-surface dynamics in several turbulent flows commonly found in nature were investigated using a synchronised setup consisting of an ultrasonic sensor and a high-speed video camera. Basic sensor capabilities were examined in dry conditions to allow for a better characterisation of the present sensor model. The ultrasonic sensor was found to adequately reproduce free-surface dynamics up to the second order, especially in two-dimensional scenarios with the most energetic modes in the low frequency range. The sensor frequency response was satisfactory in the sub-20 Hz band, and its signal quality may be further improved by low-pass filtering prior to digitisation. The application of the USS to characterise entrapped air in high-velocity flows is also discussed.},
  language  = {en}
}
@inproceedings{DuranParedesMottaghyHerrmannetal.2020,
  author    = {Duran Paredes, Ludwin and Mottaghy, Darius and Herrmann, Ulf and Groß, Rolf Fritz},
  title     = {Online ground temperature and soil moisture monitoring of a shallow geothermal system with non-conventional components},
  series = {EGU General Assembly 2020},
  booktitle = {EGU General Assembly 2020},
  year      = {2020},
  abstract  = {We present first results from a newly developed monitoring station for a closed loop geothermal heat pump test installation at our campus, consisting of helix coils and plate heat exchangers, as well as an ice-store system. There are more than 40 temperature sensors and several soil moisture content sensors distributed around the system, allowing a detailed monitoring under different operating conditions.In the view of the modern development of renewable energies along with the newly concepts known as Internet of Things and Industry 4.0 (high-tech strategy from the German government), we created a user-friendly web application, which will connect the things (sensors) with the open network (www). Besides other advantages, this allows a continuous remote monitoring of the data from the numerous sensors at an arbitrary sampling rate.Based on the recorded data, we will also present first results from numerical simulations, taking into account all relevant heat transport processes.The aim is to improve the understanding of these processes and their influence on the thermal behavior of shallow geothermal systems in the unsaturated zone. This will in turn facilitate the prediction of the performance of these systems and therefore yield an improvement in their dimensioning when designing a specific shallow geothermal installation.},
  language  = {en}
}
@article{CheenakulaPaulsenOttetal.2023,
  author    = {Cheenakula, Dheeraja and Paulsen, Svea and Ott, Fabian and Gr{\"o}mping, Markus},
  title     = {Operational window of a deammonifying sludge for mainstream application in a municipal wastewater treatment plant},
  series = {Water and Environment Journal},
  journal   = {Water and Environment Journal},
  number    = {Early View},
  publisher = {Wiley},
  address   = {Chichester},
  issn      = {1747-6593},
  doi       = {10.1111/wej.12898},
  pages     = {1 -- 12},
  year      = {2023},
  abstract  = {The present work aimed to study the mainstream feasibility of the deammonifying sludge of side stream of municipal wastewater treatment plant (MWWTP) in Kaster, Germany. For this purpose, the deammonifying sludge available at the side stream was investigated for nitrogen (N) removal with respect to the operational factors temperature (15-30°C), pH value (6.0-8.0) and chemical oxygen demand (COD)/N ratio (≤1.5-6.0). The highest and lowest N-removal rates of 0.13 and 0.045 kg/(m³ d) are achieved at 30 and 15°C, respectively. Different conditions of pH and COD/N ratios in the SBRs of Partial nitritation/anammox (PN/A) significantly influenced both the metabolic processes and associated N-removal rates. The scientific insights gained from the current work signifies the possibility of mainstream PN/A at WWTPs. The current study forms a solid basis of operational window for the upcoming semi-technical trails to be conducted prior to the full-scale mainstream PN/A at WWTP Kaster and WWTPs globally.},
  language  = {en}
}
@inproceedings{MohanGrossMenzeletal.2021,
  author    = {Mohan, Nijanthan and Groß, Rolf Fritz and Menzel, Karsten and Theis, Fabian},
  title     = {Opportunities and Challenges in the Implementation of Building Information Modeling for Prefabrication of Heating, Ventilation and Air Conditioning Systems in Small and Medium-Sized Contracting Companies in Germany - A Case Study},
  series = {WIT Transactions on The Built Environment, Vol. 205},
  booktitle = {WIT Transactions on The Built Environment, Vol. 205},
  publisher = {WIT Press},
  address   = {Southampton},
  issn      = {1743-3509},
  doi       = {10.2495/BIM210101},
  pages     = {117 -- 126},
  year      = {2021},
  abstract  = {FEven though BIM (Building Information Modelling) is successfully implemented in most of the world, it is still in the early stages in Germany, since the stakeholders are sceptical of its reliability and efficiency. The purpose of this paper is to analyse the opportunities and obstacles to implementing BIM for prefabrication. Among all other advantages of BIM, prefabrication is chosen for this paper because it plays a vital role in creating an impact on the time and cost factors of a construction project. The project stakeholders and participants can explicitly observe the positive impact of prefabrication, which enables the breakthrough of the scepticism factor among the small-scale construction companies. The analysis consists of the development of a process workflow for implementing prefabrication in building construction followed by a practical approach, which was executed with two case studies. It was planned in such a way that, the first case study gives a first-hand experience for the workers at the site on the BIM model so that they can make much use of the created BIM model, which is a better representation compared to the traditional 2D plan. The main aim of the first case study is to create a belief in the implementation of BIM Models, which was succeeded by the execution of offshore prefabrication in the second case study. Based on the case studies, the time analysis was made and it is inferred that the implementation of BIM for prefabrication can reduce construction time, ensures minimal wastes, better accuracy, less problem-solving at the construction site. It was observed that this process requires more planning time, better communication between different disciplines, which was the major obstacle for successful implementation. This paper was carried out from the perspective of small and medium-sized mechanical contracting companies for the private building sector in Germany.},
  language  = {en}
}
@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{HoettgesRitterbachEls1987,
  author    = {H{\"o}ttges, J{\"o}rg and Ritterbach, E. and Els, H.},
  title     = {Optical Improvement of LDV-Measurement in Pipe Flow / Ritterbach, E.; J. H{\"o}ttges; H. Els},
  series = {Laser anemometry : advances and applications; proceedings of the 2. International Conference, Strathclyde, Scotland, 21st to 23rd September 1987 / ed. by John Turner ... UK LDA Users Group},
  journal   = {Laser anemometry : advances and applications; proceedings of the 2. International Conference, Strathclyde, Scotland, 21st to 23rd September 1987 / ed. by John Turner ... UK LDA Users Group},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3540187561},
  pages     = {VII, 601 S : Ill., graph. Darst.},
  year      = {1987},
  language  = {en}
}