@inproceedings{LangohrBungCrookston2022,
  author    = {Langohr, Philipp and Bung, Daniel Bernhard and Crookston, Brian M.},
  title     = {Hybrid investigation of labyrinth weirs: Discharge capacity and energy dissipation},
  series = {Proceedings of the 39th IAHR World Congress},
  booktitle = {Proceedings of the 39th IAHR World Congress},
  editor    = {Ortega-S{\´a}nchez, Miguel},
  publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)},
  address   = {Madrid},
  isbn      = {978-90-832612-1-8},
  issn      = {2521-7119 (print)},
  doi       = {10.3850/IAHR-39WC252171192022738},
  pages     = {2313 -- 2318},
  year      = {2022},
  abstract  = {The replacement of existing spillway crests or gates with labyrinth weirs is a proven techno-economical means to increase the discharge capacity when rehabilitating existing structures. However, additional information is needed regarding energy dissipation of such weirs, since due to the folded weir crest, a three-dimensional flow field is generated, yielding more complex overflow and energy dissipation processes. In this study, CFD simulations of labyrinth weirs were conducted 1) to analyze the discharge coefficients for different discharges to compare the Cd values to literature data and 2) to analyze and improve energy dissipation downstream of the structure. All tests were performed for a structure at laboratory scale with a height of approx. P = 30.5 cm, a ratio of the total crest length to the total width of 4.7, a sidewall angle of 10° and a quarter-round weir crest shape. Tested headwater ratios were 0.089 ≤ HT/P ≤ 0.817. For numerical simulations, FLOW-3D Hydro was employed, solving the RANS equations with use of finite-volume method and RNG k-ε turbulence closure. In terms of discharge capacity, results were compared to data from physical model tests performed at the Utah Water Research Laboratory (Utah State University), emphasizing higher discharge coefficients from CFD than from the physical model. For upstream heads, some discrepancy in the range of ± 1 cm between literature, CFD and physical model tests was identified with a discussion regarding differences included in the manuscript. For downstream energy dissipation, variable tailwater depths were considered to analyze the formation and sweep-out of a hydraulic jump. It was found that even for high discharges, relatively low downstream Froude numbers were obtained due to high energy dissipation involved by the three-dimensional flow between the sidewalls. The effects of some additional energy dissipation devices, e.g. baffle blocks or end sills, were also analyzed. End sills were found to be non-effective. However, baffle blocks with different locations may improve energy dissipation downstream of labyrinth weirs.},
  language  = {en}
}
@book{Laack2022,
  author    = {Laack, Walter van},
  title     = {Schnittstelle Tod: Was lernen wir durch Corona {\"u}ber Leben und Tod?},
  publisher = {van Laack GmbH},
  address   = {Aachen},
  isbn      = {978-3-936624-53-3},
  pages     = {108 Seiten},
  year      = {2022},
  language  = {de}
}
@book{Laack2022,
  author    = {Laack, Walter van},
  title     = {Aufruf zum Nachdenken: Corona und neue Kriege - Wie kann die Menschheit {\"u}berleben?},
  publisher = {van Laack GmbH},
  address   = {Aachen},
  isbn      = {978-3-936624-56-4},
  pages     = {56 Seiten},
  year      = {2022},
  language  = {de}
}
@book{Laack2022,
  author    = {Laack, Walter van},
  title     = {Greater Than the Entire Universe},
  publisher = {van Laack GmbH},
  address   = {Aachen},
  isbn      = {978-3-936624-52-6},
  pages     = {120 Seiten},
  year      = {2022},
  language  = {en}
}
@book{KurzSchwer2022,
  author    = {Kurz, Melanie and Schwer, Thilo},
  title     = {Geschichte des Designs},
  edition   = {1. Auflage},
  publisher = {Beck},
  address   = {M{\"u}nchen},
  isbn      = {978-3-406-78813-0},
  pages     = {128 Seiten},
  year      = {2022},
  abstract  = {Dieser Band bietet einen kompakten {\"U}berblick {\"u}ber die wichtigsten Stationen des Produktdesigns vom Beginn der Industrialisierung bis heute. Im Zentrum stehen ikonische Alltagsgegenst{\"a}nde vom Thonet-Stuhl bis zum iPhone. Anschaulich und kenntnisreich nehmen Melanie Kurz und Thilo Schwer dabei auch die gesellschaftspolitische Situation, in der die Objekte entstanden sind, in den Blick.},
  language  = {de}
}
@book{KurzSchwer2022,
  author    = {Kurz, Melanie and Schwer, Thilo},
  title     = {Raster, Regeln, Ratio : Systematiken und Normungen im Design des 20. Jahrhunderts / herausgegeben von Melanie Kurz und Thilo Schwer},
  series = {Schriften / Gesellschaft f{\"u}r Designgeschichte},
  journal   = {Schriften / Gesellschaft f{\"u}r Designgeschichte},
  publisher = {avedition},
  address   = {Stuttgart},
  isbn      = {978-3-89986-380-2},
  pages     = {155 Seiten},
  year      = {2022},
  language  = {de}
}
@incollection{Kurz2022,
  author    = {Kurz, Melanie},
  title     = {Vom Werkbundstreit bis zur Papierformatnormung - welche Rolle der Chemie-Nobelpreistr{\"a}ger Friedrich Wilhelm Ostwald bei Typisierungsbestrebungen im Design spielt},
  series = {Raster, Regeln, Ratio : Systematiken und Normungen des 20. Jahrhunderts},
  volume    = {2022},
  booktitle = {Raster, Regeln, Ratio : Systematiken und Normungen des 20. Jahrhunderts},
  publisher = {avedition},
  address   = {Stuttgart},
  isbn      = {978-3-89986-380-2},
  pages     = {6 -- 17},
  year      = {2022},
  language  = {de}
}
@article{KubalskiButenwegElDeib2022,
  author    = {Kubalski, Thomas and Butenweg, Christoph and El-Deib, Khaled},
  title     = {Vereinfachte Ber{\"u}cksichtigung der Rahmentragwirkung in Mauerwerksgeb{\"a}uden},
  series = {Bautechnik},
  volume    = {99},
  journal   = {Bautechnik},
  number    = {12},
  editor    = {Jesse, Dirk},
  publisher = {Ernst \& Sohn},
  address   = {Berlin},
  issn      = {0932-8351},
  doi       = {10.1002/bate.202200081},
  pages     = {865 -- 928},
  year      = {2022},
  abstract  = {Aufgrund der gestiegenen Anforderungen durch h{\"o}here Ein-wirkungen aus Wind und Erdbeben ist eine Verbesserung und Optimierung der Berechnungs- und Bemessungsans{\"a}tze f{\"u}r Mauerwerksbauten erforderlich. Eine bessere Ausnutzung der Tragwerksreserven ist durch die Ber{\"u}cksichtigung der Rah-mentragwirkung mit einer Aktivierung der Deckenscheiben in den Rechenmodellen m{\"o}glich, die in der Praxis aufgrund der Komplexit{\"a}t der Wand-Decken-Interaktion bislang nicht aus-genutzt wird. Im vorliegenden Aufsatz wird ein vereinfachter Ansatz auf Grundlage der mitwirkenden Plattenbreite von Schubw{\"a}nden aus Mauerwerk vorgestellt, der die wesentli-chen Einfl ussfaktoren in parametrisierten Tabellen erfasst. Damit steht den Tragwerksplanern ein einfach anwendbares Werkzeug zur Verf{\"u}gung, um die Rahmentragwirkung in der Mauerwerksbemessung anzusetzen.},
  language  = {de}
}
@masterthesis{Krebs2022,
  type      = {Bachelor Thesis},
  author    = {Krebs, Benedikt},
  title     = {Das Online-Ich : Erlebnis-Installation zur Reflexion {\"u}ber das digitale Selbst},
  publisher = {FH Aachen},
  address   = {Aachen},
  school      = {Fachhochschule Aachen},
  pages     = {38 Seiten},
  year      = {2022},
  abstract  = {Soziale Netzwerke geh{\"o}ren zu den gr{\"o}ßten Konzernen der Welt. Hier werden min{\"u}tlich Millionen von Nachrichten verschickt. Das Internet spielt eine stetig wachsende Rolle in der zwischenmenschlichen Kommunikation. Und doch funktioniert dort nicht nur die Sprache anders, auch die Pers{\"o}nlichkeit der Menschen kann sich auch ver{\"a}ndern. Diese Arbeit besch{\"a}ftigt sich mit dem „Online-Ich", das jeder in sich tragen soll. H{\"a}ufig ist dieses offener, hilfsbereiter und selbstloser, aber eben auch reizbarer, aggressiver und energetischer. Um auf diese Ver{\"a}nderung aufmerksam zu machen, werden die analoge und digitale Pers{\"o}nlichkeit verglichen. Dazu sch{\"o}pft die Arbeit aus den vielf{\"a}ltigen M{\"o}glichkeiten von Virtual Reality, um Betrachtende in die Arbeit miteinzubeziehen.},
  language  = {de}
}
@misc{KrafftKukaUlberetal.2022,
  author    = {Krafft, Simone and Kuka, Katrin and Ulber, Roland and Tippk{\"o}tter, Nils},
  title     = {Utilization of Lolium perenne varieties as a renewable substrate for single-cell proteins, lactate, and composite materials},
  series = {Chemie Ingenieur Technik},
  volume    = {94},
  journal   = {Chemie Ingenieur Technik},
  number    = {9},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0009-286X},
  doi       = {10.1002/cite.202255306},
  pages     = {1303 -- 1304},
  year      = {2022},
  abstract  = {Lolium perenne (perennial ryegrass) is aproductive and high-quality forage grass indigenous to Southern Europe, temperate Asia, and North Africa. Nowadays it is widespread and the dominant grass species on green areas in temperate climates. This abundant source of biomass is suitable for the development of bioeconomic processes because of its high cellulose and water-soluble carbohydrate content. In this work, novel breeds of the perennial ryegrass are being examined with regards to their quality parameters and biotechnological utilization options within the context of bioeconomy. Three processing operations are presented. In the first process, the perennial ryegrass is pretreated by pressing or hydrothermal extraction to derive glucosevia subsequent enzymatic hydrolysis of cellulose. A yield of up to 82 \% glucose was achieved when using the hydrothermal ex-traction as pretreatment. In a second process, the ryegrass is used to produce lactic acid in high concentrations. The influence of the growth conditions and the cutting time on the carboxylic acid yield is investigated. A yield of lactic acid of above 150 g kg⁻¹ dry matter was achieved. The third process is to use Lolium perenne as a substrate in the fermentation of K. marxianus for the microbial production of single-cell proteins. The perennial ryegrass is screw-pressed and the press juice is used as medium. When supplementing the press juice with yeast media components, a biomass concentration of up to 16 g L⁻¹ could be achieved.},
  language  = {en}
}