TY  - CHAP
A1  - Kern, Alexander
A1  - Beierl, Ottmar
A1  - Zischank, Wolfgang
T1  - Calculation of the separation distance according to IEC 62305-3: 2006-10 - Remarks for the application and simplified methods
N2  - [Paper of the X International Symposium on Lightning Protection 9th - 13th November, 2009 - Curitiba, Brazil. 6 pages] The international standard IEC 62305-3, published in 2006, requires as an integral part of the lightning protection system (LPS) the consideration of a separation distance between the conductors of the LPS and metal and electrical installations inside the structure to be protected. IEC 62305-3 gives two different methods for this calculation: a standard, simplified approach and a more detailed approach, which differ especially regarding the treatment of the current sharing effect on the LPS conductors. Hence, different results for the separation distance are possible, leading to some discrepancies in the use of the standard. The standard approach defined in the main part (Clause 6.3) and in Annex C of the standard in some cases may lead to a severe oversizing of the required separation distance. The detailed approach described in Annex E naturally gives more correct results. However, a calculation of the current sharing amongst all parts of the air-termination and downconductor network is necessary, in many cases requiring the use of network analysis programs. In this paper simplified methods for the assessment of the current sharing are presented, which are easy to use as well as sufficiently adequate.
KW  - Blitzschutz
KW  - Lightning protection
Y1  - 2009
N1  - Paper in: [10. International Symposium on Lightning Protection 9. 13. November 2009, Curitiba, Brasilien. 6 Seiten]
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Fißan, H. J.
A1  - Kasper, W.
T1  - Calibration of Optical Particle Counters with Respect to Particle Size / Fißan, H. J. ; Helsper, C.; Kasper, W.
JF  - Particle and Particle Systems Characterization. 1 (1984), H. 1984
Y1  - 1984
SN  - 1521-4117
SP  - 108
EP  - 111
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Fißan, H. J.
T1  - Calibration of the Polytec HC-15 and HC-70 Optical Particle Counters / Fißan, H. J. ; Helsper, C.
JF  - Aerosols in the mining and industrial work environments, Vol. 3. Instrumentation, Marple, Virgil A. ; Liu, Benjamin Y.
Y1  - 1983
N1  - International Symposium on Aerosols in the Mining and Industrial Work Environment ; (1981.11.01-06 : ; Minneapolis/Minn.)
SP  - 825
EP  - 829
PB  - Ann Arbor Science
CY  - Ann Arbor, Mich.
ER  - 
TY  - CHAP
A1  - Hinke, Christian
A1  - Vervier, Luisa
A1  - Brauner, Philipp
A1  - Schneider, Sebastian
A1  - Steuer-Dankert, Linda
A1  - Ziefle, Martina
A1  - Leicht-Scholten, Carmen
T1  - Capability configuration in next generation manufacturing
T2  - Forecasting next generation manufacturing :  digital shadows, human-machine collaboration, and data-driven business models
N2  - Industrial production systems are facing radical change in multiple dimensions. This change is caused by technological developments and the digital transformation of production, as well as the call for political and social change to facilitate a transformation toward sustainability. These changes affect both the capabilities of production systems and companies and the design of higher education and educational programs. Given the high uncertainty in the likelihood of occurrence and the technical, economic, and societal impacts of these concepts, we conducted a technology foresight study, in the form of a real-time Delphi analysis, to derive reliable future scenarios featuring the next generation of manufacturing systems. This chapter presents the capabilities dimension and describes each projection in detail, offering current case study examples and discussing related research, as well as implications for policy makers and firms. Specifically, we discuss the benefits of capturing expert knowledge and making it accessible to newcomers, especially in highly specialized industries. The experts argue that in order to cope with the challenges and circumstances of today’s world, students must already during their education at university learn how to work with AI and other technologies. This means that study programs must change and that universities must adapt their structural aspects to meet the needs of the students.
Y1  - 2022
SN  - 978-3-031-07733-3
U6  - http://dx.doi.org/10.1007/978-3-031-07734-0_6
SP  - 95
EP  - 106
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Kalker, Ines
A1  - Toll, B.
A1  - Holler, Stefan
A1  - Butenweg, Christoph
A1  - Topping, B. H. V.
A1  - Mota Soares, C. A.
T1  - Capacity analysis of textile retrofitted unreinforced masonry
T2  - Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping ...
Y1  - 2004
SN  - 0-948749-95-4
U6  - http://dx.doi.org/10.4203/ccp.79.194
SP  - 431
EP  - 432
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - CHAP
A1  - Butenweg, Christoph
A1  - Gellert, Christoph
A1  - Reindl, Lukas
T1  - Capacity design of masonry buildings under cyclic loading
T2  - Seismic Risk : Earthquakes in North-Western Europe ; international colloquium ; Liège on 11 and 12 September 2008 / Belgian Seismic Group (BeSeiG). Ed.: T. Camlebeeck ...
Y1  - 2008
SN  - 978-2-87456-063-7
SP  - 201
EP  - 208
PB  - Editions de l'Université de Liège
CY  - Liège
ER  - 
TY  - JOUR
A1  - Hoffstadt, Kevin
A1  - Pohen, Gino D.
A1  - Dicke, Max D.
A1  - Paulsen, Svea
A1  - Krafft, Simone
A1  - Zang, Joachim W.
A1  - Fonseca-Zang, Warde A. da
A1  - Leite, Athaydes
A1  - Kuperjans, Isabel
T1  - Challenges and prospects of biogas from energy cane as supplement to bioethanol production
JF  - Agronomy
N2  - Innovative breeds of sugar cane yield up to 2.5 times as much organic matter as conventional breeds, resulting in a great potential for biogas production. The use of biogas production as a complementary solution to conventional and second-generation ethanol production in Brazil may increase the energy produced per hectare in the sugarcane sector. Herein, it was demonstrated that through ensiling, energy cane can be conserved for six months; the stored cane can then be fed into a continuous biogas process. This approach is necessary to achieve year-round biogas production at an industrial scale. Batch tests revealed specific biogas potentials between 400 and 600 LN/kgVS for both the ensiled and non-ensiled energy cane, and the specific biogas potential of a continuous biogas process fed with ensiled energy cane was in the same range. Peak biogas losses through ensiling of up to 27% after six months were observed. Finally, compared with second-generation ethanol production using energy cane, the results indicated that biogas production from energy cane may lead to higher energy yields per hectare, with an average energy yield of up to 162 MWh/ha. Finally, the Farm²CBG concept is introduced, showing an approach for decentralized biogas production.
Y1  - 2020
U6  - http://dx.doi.org/10.3390/agronomy10060821
SN  - 2073-4395
VL  - 10
IS  - 6
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Thielemann, Frank
T1  - Chancen durch Online-Dienste?
JF  - OP DruckMagazin. 39 (1997), H. 1-2
Y1  - 1997
SN  - 0030-0594
SP  - 26
EP  - f.
ER  - 
TY  - JOUR
A1  - Schwarzer, Klemens
A1  - Silva, Maria Eugenia Vieira da
T1  - Characterisation and design methods of solar cookers / Schwarzer, Klemens ; Silva, Maria Eugenia Vieira da
JF  - Solar energy. 82 (2008), H. 2
Y1  - 2008
SN  - 0038-092X
SP  - 157
EP  - 163
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Mölter, W.
T1  - Characteristics of a Nebulizer with Cyclone Preseparator / Mölter, W. ; Helsper, C.
JF  - Aerosols, their generation, behaviour and applications. Annual Conference of the Aerosol Society / Aerosol Society (UK) ; 5.
Y1  - 1991
SP  - 89
EP  - 94
CY  - Loughborough
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Morvic, M.
A1  - Betko, J.
A1  - Novak, J.
T1  - Characterization of low-temperature GaAs by conductivity, Hall effect and magnetoresistance measurements.  Morvic, M., Betko, J.; Novak, J.; Förster, A.; Kordos, P.
JF  - 2nd Symposium on Non-Stoichiometric III-V Compounds : [4th - 6th October 1999, Erlangen] / [ed. by T. Marek ...] Friedrich-Alexander-Universität Erlangen-Nürnberg
Y1  - 1999
SN  - 3-932392-19-1
N1  - Symposium on Non-Stoichiometric III-V Compounds <2, 1999, Erlangen>
SP  - 79
EP  - 85
PB  - Lehrstuhl für Mikrocharakterisierung
CY  - Erlangen
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Novak, J.
A1  - Kucera, M.
A1  - Morvic, M.
T1  - Characterization of low-temperature GaAs by galvanomagnetic an photoluminescence measurements / J. Novák ; M. Kucera ; M. Morvic ... A. Förster ...
JF  - Materials science and engineering B: Solid&#150; state materials for advanced technology. 44 (1997), H. 1-3
Y1  - 1997
SN  - 0921-5107
SP  - 341
EP  - 344
ER  - 
TY  - CHAP
A1  - Kaspar, K.
A1  - Groebel, Simone
A1  - Kuperjans, Isabel
A1  - Dielmann, Klaus-Peter
A1  - Selmer, Thorsten
T1  - Charakterisierung der Biozönose von Biogasfermentern in Abhängigkeit verschiedener Substrate
T2  - Biogas 2013 : 6. Innovationskongress, 23. - 24.05.2013, Osnabrück, Tagungsband
Y1  - 2013
SN  - 978-3-9813776-3-7
SP  - 69
EP  - 74
PB  - Profair Consult+Project
CY  - Hildesheim
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Lütkemeier, E.
A1  - Wiedensohler, A.
T1  - Charge Distribution by Unipolar Charging of Small Aerosol Particles / Lütkemeier, E. ; Helsper, C. ; Wiedensohler, A.
JF  - Aerosols : formation and reactivity ; proceedings of the second International Aerosol Conference, 22-26 Sept. 1986, Berlin (West) / Gesellschaft für Aerosolforschung (GAeF) ; American Association for Aerosol Research (AAAR)
Y1  - 1986
N1  - International Aerosol Conference ; (2, 1986, Berlin (West))
SP  - 474
EP  - 478
PB  - Pergamon Press
CY  - Oxford [u.a.]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Lachenmann, S. G.
A1  - Friedrich, I.
T1  - Charge transport in superconductor/semiconductor/normal-conductor step junctions / S. G. Lachenmann ; I. Friedrich ; A. Förster ...
JF  - Physical review / B, Condensed matter and materials physics. 56 (1997), H. 21
Y1  - 1997
SN  - 1095-3795
SP  - 14108
EP  - 14115
ER  - 
TY  - CHAP
A1  - Höfler, M.
A1  - Kneer, R.
A1  - Groß, Rolf Fritz
A1  - Kehrmann, K.
ED  - Vorobieff, P.
T1  - Chemical determination of oxygen transfer rates, transfer efficiencies and interphases evoked by aeration elements for liquid flows
T2  - Computational Methods in Multiphase Flow VIII. - (WIT Transactions on Engineering Sciences ;  Volume 89)
Y1  - 2015
SN  - 978-1-84564-946-3 (Print-Ausgabe)
SN  - 978-1-84564-947-0 (Online-Ausgabe)
SN  - 1746-4471
SP  - 89
EP  - 101
PB  - WIT Press
CY  - Southampton
ER  - 
TY  - GEN
A1  - Pier, Arnold
A1  - Hummen, Jörg
A1  - Stellberg, Michael
T1  - Chirurgischer Klammerapplikator
Y1  - 1996
N1  - Tag der Offenlegung: 29.8.1996
ER  - 
TY  - JOUR
A1  - Sommer, F.
A1  - Gerling, Ulrich
A1  - Predel, Bruno
T1  - Comments on 'On the evaluation of interchange energies and the equilibrium constant from mixing enthalpies of a regular associated solution' by S. Lele, G.V.S. Sastry, and P. Ramachandrarao = Kommentar zu 'Zur Berechnung der Wechselwirkungsenergien und der Gleichgewichtskonstanten aus Mischungsenthalpien in regulären assoziierten Lösungen' von S. Lele, G.V.S. Sastry und P. Ramachandrarao
JF  - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 75, H. 6
Y1  - 1984
SN  - 0044-3093 ; 0179-4841
SP  - 449
EP  - 454
ER  - 
TY  - JOUR
A1  - Hoffschmidt, Bernhard
A1  - Fend, Thomas
A1  - Jorgensen, Gary
A1  - Küster, Harald
T1  - Comparative assessment of solar concentrator materials / Fend, Thomas ; Hoffschmidt, Bernhard ; Jorgensen, Gary ; Küster, Harald ; Krüger, Dirk ; Pitz-Paal, Robert ; Riebrock, Peter ; Riffelmann, Klaus-Jürgen
JF  - Solar energy. 74 (2003), H. 2
Y1  - 2003
SN  - 0038-092X
SP  - 149
EP  - 155
ER  - 
TY  - JOUR
A1  - Hoffschmidt, Bernhard
A1  - Fend, Thomas
A1  - Jorgensen, Gary
T1  - Comparative assessment of solar concentrator materials / Thomas Fend ; Bernhard Hoffschmidt ; Gary Jorgensen ...
JF  - Renewable energy for local communities of Europe : (toward Rio+10) ; proceedings / EuroSun 2002, the 4th ISES Europe Solar Congress ; Bologna (Italy), 23 - 26 June 2002 / ISES Italia
Y1  - 2002
SN  - 88-900893-0-X
N1  - Eurosun <4, 2002, Bologna> ; International Solar Energy Society
SP  - paper_125.pdf
CY  - Bologna
ER  -