@article{StrucksWatermannWeberetal.2021, author = {Strucks, Peter and Watermann, Clara and Weber, Konradin and Kaluza, Stefan}, title = {Systematic Investigations of Vibrational and Fluid-Mechanical Stability of Coated Monolithic Catalysts}, series = {Chemie Ingenieur Technik}, volume = {93}, journal = {Chemie Ingenieur Technik}, number = {5}, publisher = {Wiley}, issn = {1522-2640}, doi = {10.1002/cite.202000233}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-28930}, pages = {1 -- 6}, year = {2021}, abstract = {Heterogeneous catalysts usually consist of porous, inorganic materials. Especially in the mobile application, e.g., in exhaust gas catalysis as a part of the gas line of an engine, there are loads due to vibrations and high gas velocities. It can be assumed that physical stress will lead to a loss of the catalytically active coating. The present contribution describes experimental setups and methods for a systematic and reproducible investigation of the main influences to the mass loss due to vibrational and fluid-mechanical stress caused by particle-free gas flows.}, language = {en} } @techreport{AdamDreherEblingetal.2017, author = {Adam, Mario and Dreher, Martina and Ebling, Dirk and Knopp, Reinhold and Neef, Matthias and Niess, Robert and Pohl, Tobias and Stahl, Wilhelm and van Rießen, Anne and Waldow, Friederike and Weber, Konradin and Weis, Stephanie}, title = {LUST Forschungsprojekt - lebenswerte und umweltgerechte Stadt}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, isbn = {978-3-941334-43-4}, doi = {10.20385/978-3-941334-43-4}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-11458}, year = {2017}, abstract = {LUST (lebenswerte und umweltgerechte Stadt) ist ein interdisziplin{\"a}res Projekt der Fachbereiche Architektur, Maschinenbau und Verfahrenstechnik sowie Kultur- und Sozialwissenschaften der Hochschule D{\"u}sseldorf. Mittelpunkt des Projektes ist die fach{\"u}bergreifende Entwicklung neuer Konzepte f{\"u}r eine lebenswerte und umweltgerechte Stadt. Es wurde gef{\"o}rdert vom Land Nordrhein-Westfalen im Rahmen des Programms „FH Struktur".}, language = {de} } @article{PrataDezitterDaviesetal.2016, author = {Prata, A. J. and Dezitter, F. and Davies, I. and Weber, Konradin and Birnfeld, M. and Moriano, D. and Bernardo, C. and Vogel, A. and Prata, G. S. and Mather, T. A. and Thomas, H. E. and Cammas, J. and Weber, M.}, title = {Artificial cloud test confirms volcanic ash detection using infrared spectral imaging}, series = {Scientific reports}, volume = {6}, journal = {Scientific reports}, publisher = {Springer Nature}, doi = {10.1038/srep25620}, year = {2016}, abstract = {Airborne volcanic ash particles are a known hazard to aviation. Currently, there are no means available to detect ash in flight as the particles are too fine (radii < 30 μm) for on-board radar detection and, even in good visibility, ash clouds are difficult or impossible to detect by eye. The economic cost and societal impact of the April/May 2010 Icelandic eruption of Eyjafjallaj{\"o}kull generated renewed interest in finding ways to identify airborne volcanic ash in order to keep airspace open and avoid aircraft groundings. We have designed and built a bi-spectral, fast-sampling, uncooled infrared camera device (AVOID) to examine its ability to detect volcanic ash from commercial jet aircraft at distances of more than 50 km ahead. Here we report results of an experiment conducted over the Atlantic Ocean, off the coast of France, confirming the ability of the device to detect and quantify volcanic ash in an artificial ash cloud created by dispersal of volcanic ash from a second aircraft. A third aircraft was used to measure the ash in situ using optical particle counters. The cloud was composed of very fine ash (mean radii ~10 μm) collected from Iceland immediately after the Eyjafjallaj{\"o}kull eruption and had a vertical thickness of ~200 m, a width of ~2 km and length of between 2 and 12 km. Concentrations of ~200 μg m(-3) were identified by AVOID at distances from ~20 km to ~70 km. For the first time, airborne remote detection of volcanic ash has been successfully demonstrated from a long-range flight test aircraft.}, language = {en} } @article{HeninStelmaszczykPetrarcaetal.2013, author = {Henin, S. and Stelmaszczyk, K. and Petrarca, M. and Rohwetter, P. and Hao, Z. Q. and L{\"u}der, J. and Petit, Y. and Vogel, A. and Weber, Konradin and Kasparian, J. and W{\"o}ste, L. and Wolf, J.-P.}, title = {Laser Filament Induced Water Condensation}, series = {EPJ Web of Conferences}, volume = {41}, journal = {EPJ Web of Conferences}, publisher = {edp sciences}, doi = {10.1051/epjconf/20134112008}, year = {2013}, abstract = {C Owned by the authors, published by EDP Sciences, 2013}, language = {en} } @article{BirmiliRehnVogeletal.2013, author = {Birmili, Wolfram and Rehn, Johanna and Vogel, Andreas and Boehlke, Christoph and Weber, Konradin and Rasch, Fabian}, title = {Micro-scale variability of urban particle number and mass concentrations in Leipzig, Germany}, series = {Meteorologische Zeitschrift}, volume = {22}, journal = {Meteorologische Zeitschrift}, number = {2}, publisher = {Borntr{\"a}ger}, doi = {10.1127/0941-2948/2013/0394}, pages = {155 -- 165}, year = {2013}, language = {en} } @article{CarapezzaBarberiRanaldietal.2012, author = {Carapezza, M. L. and Barberi, F. and Ranaldi, M. and Ricci, T. and Tarchini, L. and Barrancos, J. and Fischer, C. and Granieri, D. and Lucchetti, C. and Melian, G. and Perez, N. and Tuccimei, P. and Vogel, A. and Weber, Konradin}, title = {Hazardous gas emissions from the flanks of the quiescent Colli Albani volcano (Rome, Italy)}, series = {Applied Geochemistry}, volume = {27}, journal = {Applied Geochemistry}, number = {9}, publisher = {Elsevier}, doi = {10.1016/j.apgeochem.2012.02.012}, pages = {1767 -- 1782}, year = {2012}, language = {en} } @article{EliassonPalssonWeber2011, author = {El{\´i}asson, J{\´o}nas and Palsson, Asgeir and Weber, Konradin}, title = {Monitoring ash clouds for aviation}, series = {Nature}, volume = {475}, journal = {Nature}, number = {7357}, publisher = {Springer Nature}, doi = {10.1038/475455b}, pages = {455}, year = {2011}, language = {en} } @article{CarapezzaBarberiRanaldietal.2011, author = {Carapezza, M. L. and Barberi, F. and Ranaldi, M. and Ricci, T. and Tarchini, L. and Barrancos, J. and Fischer, C. and Perez, N. and Weber, Konradin and Di Piazza, A. and Gattuso, A.}, title = {Diffuse CO2 soil degassing and CO2 and H2S concentrations in air and related hazards at Vulcano Island (Aeolian arc, Italy)}, series = {Journal of Volcanology and Geothermal Research}, volume = {207}, journal = {Journal of Volcanology and Geothermal Research}, number = {3-4}, publisher = {Elsevier}, doi = {10.1016/j.jvolgeores.2011.06.010}, pages = {130 -- 144}, year = {2011}, language = {en} } @article{WeberKuttlerWeber2006, author = {Weber, Stephan and Kuttler, Wilhelm and Weber, Konradin}, title = {Flow characteristics and particle mass and number concentration variability within a busy urban street canyon}, series = {Atmospheric Environment}, volume = {40}, journal = {Atmospheric Environment}, number = {39}, publisher = {Elsevier}, doi = {10.1016/j.atmosenv.2006.07.002}, pages = {7565 -- 7578}, year = {2006}, language = {en} }