@article{KernKloetersPferdmenges2009, author = {Kern, Alexander and Kl{\"o}ters, Georg and Pferdmenges, J{\"o}rg}, title = {Blitzschutzoptimierung in der LST an nicht-elektrifizierten Strecken}, series = {Signal und Draht. 101 (2009), H. 4}, journal = {Signal und Draht. 101 (2009), H. 4}, publisher = {DVV Media Group}, address = {Hamburg}, isbn = {0037-4997}, pages = {17 -- 21}, year = {2009}, language = {de} } @article{KernSchelthoffMathieu2011, author = {Kern, Alexander and Schelthoff, Christof and Mathieu, Moritz}, title = {Calculation of interception efficiencies for airterminations using a dynamic electro-geometrical model}, publisher = {IEEE}, address = {New York}, pages = {1 -- 6}, year = {2011}, language = {en} } @article{KernWiesingerZischank1991, author = {Kern, Alexander and Wiesinger, J. and Zischank, Wolfgang J.}, title = {Calculation of the longitudinal voltage along metal tubes caused by lightning currents and protection measures}, series = {Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30 1991}, journal = {Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30 1991}, publisher = {Techn. Univ.}, address = {Dresden}, year = {1991}, language = {en} } @article{HelsperFissanKasper1984, author = {Helsper, Christoph and Fißan, H. J. and Kasper, W.}, title = {Calibration of Optical Particle Counters with Respect to Particle Size / Fißan, H. J. ; Helsper, C.; Kasper, W.}, series = {Particle and Particle Systems Characterization. 1 (1984), H. 1984}, journal = {Particle and Particle Systems Characterization. 1 (1984), H. 1984}, isbn = {1521-4117}, pages = {108 -- 111}, year = {1984}, language = {en} } @article{HelsperFissan1983, author = {Helsper, Christoph and Fißan, H. J.}, title = {Calibration of the Polytec HC-15 and HC-70 Optical Particle Counters / Fißan, H. J. ; Helsper, C.}, series = {Aerosols in the mining and industrial work environments, Vol. 3. Instrumentation, Marple, Virgil A. ; Liu, Benjamin Y.}, journal = {Aerosols in the mining and industrial work environments, Vol. 3. Instrumentation, Marple, Virgil A. ; Liu, Benjamin Y.}, publisher = {Ann Arbor Science}, address = {Ann Arbor, Mich.}, pages = {825 -- 829}, year = {1983}, language = {en} } @article{HoffstadtPohenDickeetal.2020, author = {Hoffstadt, Kevin and Pohen, Gino D. and Dicke, Max D. and Paulsen, Svea and Krafft, Simone and Zang, Joachim W. and Fonseca-Zang, Warde A. da and Leite, Athaydes and Kuperjans, Isabel}, title = {Challenges and prospects of biogas from energy cane as supplement to bioethanol production}, series = {Agronomy}, volume = {10}, journal = {Agronomy}, number = {6}, publisher = {MDPI}, address = {Basel}, issn = {2073-4395}, doi = {10.3390/agronomy10060821}, year = {2020}, abstract = {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.}, language = {en} } @article{Thielemann1997, author = {Thielemann, Frank}, title = {Chancen durch Online-Dienste?}, series = {OP DruckMagazin. 39 (1997), H. 1-2}, journal = {OP DruckMagazin. 39 (1997), H. 1-2}, isbn = {0030-0594}, pages = {26 -- f.}, year = {1997}, language = {de} } @article{SchwarzerSilva2008, author = {Schwarzer, Klemens and Silva, Maria Eugenia Vieira da}, title = {Characterisation and design methods of solar cookers / Schwarzer, Klemens ; Silva, Maria Eugenia Vieira da}, series = {Solar energy. 82 (2008), H. 2}, journal = {Solar energy. 82 (2008), H. 2}, isbn = {0038-092X}, pages = {157 -- 163}, year = {2008}, language = {en} } @article{HelsperMoelter1991, author = {Helsper, Christoph and M{\"o}lter, W.}, title = {Characteristics of a Nebulizer with Cyclone Preseparator / M{\"o}lter, W. ; Helsper, C.}, series = {Aerosols, their generation, behaviour and applications. Annual Conference of the Aerosol Society / Aerosol Society (UK) ; 5.}, journal = {Aerosols, their generation, behaviour and applications. Annual Conference of the Aerosol Society / Aerosol Society (UK) ; 5.}, address = {Loughborough}, pages = {89 -- 94}, year = {1991}, language = {en} } @article{FoersterMorvicBetkoetal.1999, author = {F{\"o}rster, Arnold and Morvic, M. and Betko, J. and Novak, J.}, title = {Characterization of low-temperature GaAs by conductivity, Hall effect and magnetoresistance measurements. Morvic, M., Betko, J.; Novak, J.; F{\"o}rster, A.; Kordos, P.}, series = {2nd Symposium on Non-Stoichiometric III-V Compounds : [4th - 6th October 1999, Erlangen] / [ed. by T. Marek ...] Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg}, journal = {2nd Symposium on Non-Stoichiometric III-V Compounds : [4th - 6th October 1999, Erlangen] / [ed. by T. Marek ...] Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg}, publisher = {Lehrstuhl f{\"u}r Mikrocharakterisierung}, address = {Erlangen}, isbn = {3-932392-19-1}, pages = {79 -- 85}, year = {1999}, language = {en} } @article{FoersterNovakKuceraetal.1997, author = {F{\"o}rster, Arnold and Novak, J. and Kucera, M. and Morvic, M.}, title = {Characterization of low-temperature GaAs by galvanomagnetic an photoluminescence measurements / J. Nov{\´a}k ; M. Kucera ; M. Morvic ... A. F{\"o}rster ...}, series = {Materials science and engineering B: Solid\&\#150; state materials for advanced technology. 44 (1997), H. 1-3}, journal = {Materials science and engineering B: Solid\&\#150; state materials for advanced technology. 44 (1997), H. 1-3}, isbn = {0921-5107}, pages = {341 -- 344}, year = {1997}, language = {en} } @article{HelsperLuetkemeierWiedensohler1986, author = {Helsper, Christoph and L{\"u}tkemeier, E. and Wiedensohler, A.}, title = {Charge Distribution by Unipolar Charging of Small Aerosol Particles / L{\"u}tkemeier, E. ; Helsper, C. ; Wiedensohler, A.}, series = {Aerosols : formation and reactivity ; proceedings of the second International Aerosol Conference, 22-26 Sept. 1986, Berlin (West) / Gesellschaft f{\"u}r Aerosolforschung (GAeF) ; American Association for Aerosol Research (AAAR)}, journal = {Aerosols : formation and reactivity ; proceedings of the second International Aerosol Conference, 22-26 Sept. 1986, Berlin (West) / Gesellschaft f{\"u}r Aerosolforschung (GAeF) ; American Association for Aerosol Research (AAAR)}, publisher = {Pergamon Press}, address = {Oxford [u.a.]}, pages = {474 -- 478}, year = {1986}, language = {en} } @article{FoersterLachenmannFriedrich1997, author = {F{\"o}rster, Arnold and Lachenmann, S. G. and Friedrich, I.}, title = {Charge transport in superconductor/semiconductor/normal-conductor step junctions / S. G. Lachenmann ; I. Friedrich ; A. F{\"o}rster ...}, series = {Physical review / B, Condensed matter and materials physics. 56 (1997), H. 21}, journal = {Physical review / B, Condensed matter and materials physics. 56 (1997), H. 21}, isbn = {1095-3795}, pages = {14108 -- 14115}, year = {1997}, language = {en} } @article{SommerGerlingPredel1984, author = {Sommer, F. and Gerling, Ulrich and Predel, Bruno}, title = {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 regul{\"a}ren assoziierten L{\"o}sungen' von S. Lele, G.V.S. Sastry und P. Ramachandrarao}, series = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 75, H. 6}, journal = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 75, H. 6}, issn = {0044-3093 ; 0179-4841}, pages = {449 -- 454}, year = {1984}, language = {en} } @article{HoffschmidtFendJorgensenetal.2003, author = {Hoffschmidt, Bernhard and Fend, Thomas and Jorgensen, Gary and K{\"u}ster, Harald}, title = {Comparative assessment of solar concentrator materials / Fend, Thomas ; Hoffschmidt, Bernhard ; Jorgensen, Gary ; K{\"u}ster, Harald ; Kr{\"u}ger, Dirk ; Pitz-Paal, Robert ; Riebrock, Peter ; Riffelmann, Klaus-J{\"u}rgen}, series = {Solar energy. 74 (2003), H. 2}, journal = {Solar energy. 74 (2003), H. 2}, isbn = {0038-092X}, pages = {149 -- 155}, year = {2003}, language = {en} } @article{HoffschmidtFendJorgensen2002, author = {Hoffschmidt, Bernhard and Fend, Thomas and Jorgensen, Gary}, title = {Comparative assessment of solar concentrator materials / Thomas Fend ; Bernhard Hoffschmidt ; Gary Jorgensen ...}, series = {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}, journal = {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}, address = {Bologna}, isbn = {88-900893-0-X}, pages = {paper_125.pdf}, year = {2002}, language = {en} } @article{FoersterHardtdegenUngermanns1995, author = {F{\"o}rster, Arnold and Hardtdegen, Hilde and Ungermanns, C.}, title = {Comparative investigation of electrical and optical characteristics of AlxGa1-xAs/GaAs structures deposited by LP-MOVPE and MBE / H. Hardtdegen ; M. Hollfelder ; C. Ungermanns ... A. F{\"o}rster ...}, series = {Compound semiconductors, 1994 : proceedings of the twenty-first International Symposium on Compound Semiconductors held in San Diego, California, 18 - 22 September, 1994 / ed. by Herb Goronkin ... - (Conference series / Institute of Physics ; 141)}, journal = {Compound semiconductors, 1994 : proceedings of the twenty-first International Symposium on Compound Semiconductors held in San Diego, California, 18 - 22 September, 1994 / ed. by Herb Goronkin ... - (Conference series / Institute of Physics ; 141)}, publisher = {Institute of Physics}, address = {Bristol [u.a.]}, isbn = {0-7503-0226-7}, pages = {81 -- ff.}, year = {1995}, language = {en} } @article{BeckerFrauenrathHezeletal.2010, author = {Becker, Meike and Frauenrath, Tobias and Hezel, Fabian and Krombach, Gabriele A. and Kremer, Ute and Koppers, Benedikt and Butenweg, Christoph and Goemmel, Andreas and Utting, Jane F. and Schulz-Menger, Jeanette and Niendorf, Thoralf}, title = {Comparison of left ventricular function assessment using phonocardiogram- and electrocardiogram-triggered 2D SSFP CINE MR imaging at 1.5 T and 3.0 T}, series = {European Radiology}, volume = {20}, journal = {European Radiology}, publisher = {Springer}, address = {Berlin}, issn = {1432-1084 (Onlineausgabe)}, doi = {10.1007/s00330-009-1676-z}, pages = {1344 -- 1355}, year = {2010}, abstract = {Objective: As high-field cardiac MRI (CMR) becomes more widespread the propensity of ECG to interference from electromagnetic fields (EMF) and to magneto-hydrodynamic (MHD) effects increases and with it the motivation for a CMR triggering alternative. This study explores the suitability of acoustic cardiac triggering (ACT) for left ventricular (LV) function assessment in healthy subjects (n=14). Methods: Quantitative analysis of 2D CINE steady-state free precession (SSFP) images was conducted to compare ACT's performance with vector ECG (VCG). Endocardial border sharpness (EBS) was examined paralleled by quantitative LV function assessment. Results: Unlike VCG, ACT provided signal traces free of interference from EMF or MHD effects. In the case of correct Rwave recognition, VCG-triggered 2D CINE SSFP was immune to cardiac motion effects—even at 3.0 T. However, VCG-triggered 2D SSFP CINE imaging was prone to cardiac motion and EBS degradation if R-wave misregistration occurred. ACT-triggered acquisitions yielded LV parameters (end-diastolic volume (EDV), endsystolic volume (ESV), stroke volume (SV), ejection fraction (EF) and left ventricular mass (LVM)) comparable with those derived fromVCG-triggered acquisitions (1.5 T: ESVVCG=(56± 17) ml, EDVVCG=(151±32)ml, LVMVCG=(97±27) g, SVVCG=(94± 19)ml, EFVCG=(63±5)\% cf. ESVACT= (56±18) ml, EDVACT=(147±36) ml, LVMACT=(102±29) g, SVACT=(91± 22) ml, EFACT=(62±6)\%; 3.0 T: ESVVCG=(55±21) ml, EDVVCG=(151±32) ml, LVMVCG=(101±27) g, SVVCG=(96±15) ml, EFVCG=(65±7)\% cf. ESVACT=(54±20) ml, EDVACT=(146±35) ml, LVMACT= (101±30) g, SVACT=(92±17) ml, EFACT=(64±6)\%). Conclusions: ACT's intrinsic insensitivity to interference from electromagnetic fields renders}, language = {en} } @article{KernThomsen1994, author = {Kern, Alexander and Thomsen, M.}, title = {Comparison of single point and equipotential bonding for I\&C systems of large-area industrial sites}, series = {Volume of proceedings : Budapest, Hungary, September 19-23, 1994 / organized by: Technical University of Budapest}, journal = {Volume of proceedings : Budapest, Hungary, September 19-23, 1994 / organized by: Technical University of Budapest}, publisher = {Techn. Univ.}, address = {Budapest}, pages = {Getr. Z{\"a}hlung [ca. 610 S.]}, year = {1994}, language = {en} } @article{SpaeteFaberSchwarzeretal.2004, author = {Sp{\"a}te, Frank and Faber, Christian and Schwarzer, Klemens and Hartz, Thomas}, title = {Comparison of solar hot water systems in solar settlements - decentralized or centralized systems?}, series = {Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol. 1}, journal = {Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol. 1}, publisher = {PSE}, address = {Freiburg [Breisgau]}, isbn = {3-9809656-1-9}, pages = {1-666-1-671}, year = {2004}, language = {en} }