Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-9799 Konferenzveröffentlichung Kern, Alexander, a.kern@fh-aachen.de; Imani Vashiani, Anahita, ; Timmermanns, Tobias, Threat for human beings due to touch voltages and body currents caused by direct lightning strikes in case of non-isolated lightning protection systems using natural components For typical cases of non-isolated lightning protection systems (LPS) the impulse currents are investigated which may flow through a human body directly touching a structural part of the LPS. Based on a basic LPS model with conventional down-conductors especially the cases of external and internal steel columns and metal façades are considered and compared. Numerical simulations of the line quantities voltages and currents in the time domain are performed with an equivalent circuit of the entire LPS. As a result it can be stated that by increasing the number of conventional down-conductors and external steel columns the threat for a human being can indeed be reduced, but not down to an acceptable limit. In case of internal steel columns used as natural down-conductors the threat can be reduced sufficiently, depending on the low-resistive connection of the steel columns to the lightning equipotential bonding or the earth termination system, resp. If a metal façade is used the threat for human beings touching is usually very low, if the façade is sufficiently interconnected and multiply connected to the lightning equipotential bonding or the earth termination system, resp. IEEE 2021 8 Seiten 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA) 978-1-6654-2346-5 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA), 20-26 Sept. 2021, Colombo, Sri Lanka 10.1109/ICLPandSIPDA54065.2021.9627465 campus 10.1109/ICLPandSIPDA54065.2021.9627465 Fachbereich Energietechnik OPUS4-6065 Wissenschaftlicher Artikel Schlieper, G., ; Brandenburg, V., ; Djuric, Z., ; Damjanovic, T., ; Markovic, N., ; Schurgers, L., ; Krüger, T., ; Westenfeld, R., ; Ackermann, D., ; Haselhuhn, Angelika, haselhuhn@fh-aachen.de; Dimkovic, S., ; Ketteler, M., ; Floege, J., ; Dimkovic, N., Risk factors for cardiovascular calcifications in non-diabetic Caucasian haemodialysis patients 2009 7 Kidney & blood pressure research Vol. 32 161 168 weltweit http://dx.doi.org/10.1159/000221064 Freshman Institute OPUS4-6064 Wissenschaftlicher Artikel Boettcher, Martin, ; Haselhuhn, Angelika, haselhuhn@fh-aachen.de; Jakse, Gerhard, ; Brehmer, Bernhard, ; Kirschner-Hermanns, Ruth, Overactive bladder syndrome: an underestimated long-term problem after treatment of patients with localized prostate cancer? In this study we observed courses of micturition symptoms and differentiated degrees of symptoms for each point in time while also considering the impact of bothersomeness. Our data show that not only significantly more patients who have undergone BT suffer from OAB than those who have undergone RP, but also that those affected show significantly higher values for severity of OAB symptoms throughout the whole observation period of 36 months. Our data analysis further shows that variability of OAB symptoms as well as fluctuation of severity of OAB symptoms vary to a significantly higher degree after BT than after RP. Looking only at mean figures at a given point in time clearly underestimates the underlying problem. This fact is not reflected in the literature. Oxford Wiley-Blackwell 2012 6 BJU international 109 12 1824 1830 10.1111/j.1464-410X.2011.10623.x campus https://doi.org/10.1111/j.1464-410X.2011.10623.x Freshman Institute OPUS4-6063 Wissenschaftlicher Artikel Kirschner-Hermanns, Ruth, ; Klementz, T., ; Haselhuhn, Angelika, haselhuhn@fh-aachen.de; Jakse, Gerhard, ; Heidenreich, A., ; Brehmer, Bernhard, Drangsymptomatik nach onkologisch erfolgreicher Prostatakarzinomtherapie : prospektive Studie zum Einfluss von Therapiemodalität, Morbidität und epidemiologischen Faktoren auf die Lebensqualität Berlin Springer 2011 7 Der Urologe Vol. 50 Iss. 11 1412 1419 campus http://dx.doi.org/10.1007/s00120-011-2709-1 Freshman Institute OPUS4-6055 Wissenschaftlicher Artikel Hellwig, Angelika, haselhuhn@fh-aachen.de; Volkmann, Lutz, Sufficient conditions for λ′-optimality in graphs of diameter 2 2004 7 Discrete mathematics Vol. 283 Iss. 1-3 113 120 campus http://dx.doi.org/10.1016/j.disc.2004.01.008 Freshman Institute OPUS4-6054 Wissenschaftlicher Artikel Hellwig, Angelika, haselhuhn@fh-aachen.de; Volkmann, Lutz, Neighborhood and degree conditions for super-edge-connected bipartite digraphs 2004 13 Results in mathematics Vol. 45 Iss. 1-2 45 58 campus http://dx.doi.org/10.1007/BF03322996 Freshman Institute OPUS4-6053 Wissenschaftlicher Artikel Hellwig, Angelika, haselhuhn@fh-aachen.de; Volkmann, Lutz, Maximally local-edge-connected graphs and digraphs 2004 11 Ars combinatoria Vol. 72 295 306 Freshman Institute OPUS4-6052 Wissenschaftlicher Artikel Hellwig, Angelika, haselhuhn@fh-aachen.de; Rautenbach, Dieter, ; Volkmann, Lutz, Note on the connectivity of line graphs 2004 3 Information processing letters Vol. 91 Iss. 1 7 10 campus http://dx.doi.org/10.1016/j.ipl.2004.03.013 Freshman Institute OPUS4-6051 Wissenschaftlicher Artikel Xu, Jung-Ming, ; Lü, Min, ; Ma, Meijie, ; Hellwig, Angelika, haselhuhn@fh-aachen.de Super connectivity of line graphs 2005 4 Information processing letters Vol. 94 Iss. 4 191 195 campus http://dx.doi.org/10.1016/j.ipl.2005.02.001 Freshman Institute OPUS4-6050 Wissenschaftlicher Artikel Hellwig, Angelika, haselhuhn@fh-aachen.de; Volkmann, Lutz, Sufficient conditions for graphs to be λ′-optimal, super-edge-connected, and maximally edge-connected 2005 18 Journal of graph theory Vol. 48 Iss. 3 228 246 campus http://dx.doi.org/10.1002/jgt.20053 Freshman Institute