@inproceedings{LahrsKrisamHerrmann2023, author = {Lahrs, Lennart and Krisam, Pierre and Herrmann, Ulf}, title = {Envisioning a collaborative energy system planning platform for the energy transition at the district level}, series = {The 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems}, booktitle = {The 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems}, publisher = {Procedings of ECOS 2023}, doi = {10.52202/069564-0284}, pages = {3163 -- 3170}, year = {2023}, abstract = {Residential and commercial buildings account for more than one-third of global energy-related greenhouse gas emissions. Integrated multi-energy systems at the district level are a promising way to reduce greenhouse gas emissions by exploiting economies of scale and synergies between energy sources. Planning district energy systems comes with many challenges in an ever-changing environment. Computational modelling established itself as the state-of-the-art method for district energy system planning. Unfortunately, it is still cumbersome to combine standalone models to generate insights that surpass their original purpose. Ideally, planning processes could be solved by using modular tools that easily incorporate the variety of competing and complementing computational models. Our contribution is a vision for a collaborative development and application platform for multi-energy system planning tools at the district level. We present challenges of district energy system planning identified in the literature and evaluate whether this platform can help to overcome these challenges. Further, we propose a toolkit that represents the core technical elements of the platform. Lastly, we discuss community management and its relevance for the success of projects with collaboration and knowledge sharing at their core.}, language = {en} } @article{KuertenMottaghyZiegler2015, author = {K{\"u}rten, Sylvia and Mottaghy, Darius and Ziegler, Martin}, title = {A new model for the description of the heat transfer for plane thermo-active geotechnical systems based on thermal resistances}, series = {Acta Geotechnica}, volume = {10}, journal = {Acta Geotechnica}, number = {2}, publisher = {Springer}, address = {Berlin}, issn = {1861-1133}, doi = {10.1007/s11440-014-0311-6}, pages = {219 -- 229}, year = {2015}, language = {en} } @article{KuertenMottaghyZiegler2015, author = {K{\"u}rten, Sylvia and Mottaghy, Darius and Ziegler, Martin}, title = {Design of plane energy geostructures based on laboratory tests and numerical modelling}, series = {Energy and Buildings}, volume = {107}, journal = {Energy and Buildings}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0378-7788}, doi = {10.1016/j.enbuild.2015.08.039}, pages = {434 -- 444}, year = {2015}, language = {en} } @inproceedings{KumaranGopinathanRazalietal.2013, author = {Kumaran, P. and Gopinathan, M. and Razali, N. M. and Kuperjans, Isabel and Hariffin, B. and Hamdan, H.}, title = {Preliminary evaluation of atomization characteristics of improved biodiesel for gas turbine application}, series = {IOP Conference Series: Earth and Environmental Science (EES)}, volume = {16}, booktitle = {IOP Conference Series: Earth and Environmental Science (EES)}, number = {1}, publisher = {Institute of Physics Publishing (IOP)}, address = {London [u.a.]}, issn = {1755-1315}, doi = {10.1088/1755-1315/16/1/012014}, pages = {012014/1 -- 012014/4}, year = {2013}, language = {en} } @inproceedings{KuhlmannButenwegLopezetal.2004, author = {Kuhlmann, Wolfram and Butenweg, Christoph and Lopez, Marijen and Fernandez, Sebastian}, title = {Seismic vulnerability assessment of the historic Aachen Cathedral}, series = {Conference proceedings / 13th World Conference on Earthquake Engineering [Vancouver, British Columbia, Canada, August 1 - 6, 2004] / [hosted by CAEE/ACGP, Canadian Association for Earthquake Engineering]}, booktitle = {Conference proceedings / 13th World Conference on Earthquake Engineering [Vancouver, British Columbia, Canada, August 1 - 6, 2004] / [hosted by CAEE/ACGP, Canadian Association for Earthquake Engineering]}, publisher = {CAEE}, address = {Vancouver}, organization = {World Conference on Earthquake Engineering <13, 2004, Vancouver>}, pages = {1 -- 14}, year = {2004}, language = {en} } @inproceedings{KubalskiMarinkovićButenweg2016, author = {Kubalski, T. and Marinković, Marko and Butenweg, Christoph}, title = {Numerical investigation of masonry infilled R.C. frames}, series = {Brick and Block Masonry. Proceedings of the 16th International Brick and Block Masonry Conference, Padova, Italy, 26-30 June 2016}, booktitle = {Brick and Block Masonry. Proceedings of the 16th International Brick and Block Masonry Conference, Padova, Italy, 26-30 June 2016}, editor = {Modena, Claudio}, publisher = {CRC Press}, address = {Leiden}, isbn = {9781315374963}, pages = {1219 -- 1226}, year = {2016}, language = {en} } @inproceedings{KubalskiButenwegMarinkovićetal.2017, author = {Kubalski, T. and Butenweg, Christoph and Marinković, Marko and Klinkel, S.}, title = {Investigation Of The Seismic Behaviour Of Infill Masonry Using Numerical Modelling Approaches}, series = {16th World Conference on Earthquake Engineering, 16WCEE 2017 Santiago Chile, January 9th to 13th 2017}, booktitle = {16th World Conference on Earthquake Engineering, 16WCEE 2017 Santiago Chile, January 9th to 13th 2017}, publisher = {Chilean Association on Seismology and Earthquake Engineering (ACHISINA)}, pages = {1 -- 11}, year = {2017}, abstract = {Masonry is a widely spread construction type which is used all over the world for different types of structures. Due to its simple and cheap construction, it is used as non-structural as well as structural element. In frame structures, such as reinforced concrete frames, masonry may be used as infill. While the bare frame itself is able to carry the loads when it comes to seismic events, the infilled frame is not able to warp freely due to the constrained movement. This restraint results in a complex interaction between the infill and the surrounding frame, which may lead to severe damage to the infill as well as the surrounding frame. The interaction is studied in different projects and effective approaches for the description of the behavior are still lacking. Experimental programs are usually quite expensive, while numerical models, once validated, do offer an efficient approach for the investigation of the interaction when horizontally loaded. In order to study the numerous parameters influencing the seismic load bearing behavior, numerical models may be used. Therefore, this contribution presents a numerical approach for the simulation of infill masonry in reinforced concrete frames. Both parts, the surrounding frame as well as the infill are represented by micro modelling approaches to correctly take into account the different types of failure. The adopted numerical model describes the inelastic behavior of the system, as indicated by the obtained results of the overall structural response as well as the formation of damage in the infilled wall. Comparison of the numerical and experimental results highlights the valuable contribution of numerical simulations in the study and design of infilled frames. As damage of the infill masonry may occur in-plane due to the interaction as well as out-of-plane due to the low vertical load, both directions of loading are investigated.}, language = {en} } @article{KrafftFoersterHartetal.2001, author = {Krafft, B. and F{\"o}rster, Arnold and Hart, A. van der and Sch{\"a}pers, T.}, title = {Control of Aharonov-Bohm oscillations in a AlGaAs/GaAs ring by asymmetric and symmetric gate biasing}, series = {Physica E: Low-dimensional Systems and Nanostructures. 9 (2001), H. 4}, journal = {Physica E: Low-dimensional Systems and Nanostructures. 9 (2001), H. 4}, isbn = {1386-9477}, pages = {635 -- 641}, year = {2001}, language = {en} } @inproceedings{KonradChudobaButenwegetal.2003, author = {Konrad, M. and Chudoba, Rostislav and Butenweg, Christoph and Bruckermann, O.}, title = {Textile reinforced concrete. Part II: Multi-level modeling concept}, series = {Digital proceedings / IKM 2003, proceedings 16th International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering [Elektronische Ressource : 10. - 12. Juni 2003, Weimar] / Bauhaus-Universit{\"a}t Weimar. Ed.: K. G{\"u}rlebeck; L. Hempel; C. K{\"o}nke}, booktitle = {Digital proceedings / IKM 2003, proceedings 16th International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering [Elektronische Ressource : 10. - 12. Juni 2003, Weimar] / Bauhaus-Universit{\"a}t Weimar. Ed.: K. G{\"u}rlebeck; L. Hempel; C. K{\"o}nke}, publisher = {IKM}, address = {Weimar}, organization = {Internationales Kolloquium {\"u}ber Anwendungen der Informatik und Mathematik in Architektur und Bauwesen <16, 2003, Weimar>}, pages = {1 -- 11}, year = {2003}, language = {en} } @inproceedings{KobGoemmelButenwegetal.2006, author = {Kob, Malte and G{\"o}mmel, Andreas and Butenweg, Christoph and Niendorf, Thoralf}, title = {Training of a combined model of larynx and vocal folds with data from MRI measurements}, series = {The 5th International Conference on Voice Physiology and Biomechanics: Variations across Cultures and Species, July 12-14, 2006, Tokyo, Japan. Proceedings}, booktitle = {The 5th International Conference on Voice Physiology and Biomechanics: Variations across Cultures and Species, July 12-14, 2006, Tokyo, Japan. Proceedings}, organization = {International Conference on Voice Physiology and Biomechanics <5, 2006, Tokyo>}, pages = {45 -- 46}, year = {2006}, language = {en} } @inproceedings{KobButenweg2004, author = {Kob, Malte and Butenweg, Christoph}, title = {A finite element model of the interaction between intra-and extralaryngeal muscles}, series = {International Conference on Voice Physiology and Biomechanics, August 18-20, 2004, Marseille, France}, booktitle = {International Conference on Voice Physiology and Biomechanics, August 18-20, 2004, Marseille, France}, organization = {International Conference on Voice Physiology and Biomechanics <2004, Marseille>}, pages = {1 -- 2}, year = {2004}, language = {en} } @book{KlinkelButenwegLinetal.2014, author = {Klinkel, Sven and Butenweg, Christoph and Lin, Gao and Holtschoppen, Britta}, title = {Seismic design of industrial facilities : Proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF) / Sven Klinkel, Christoph Butenweg, Gao Lin, Britta Holtschoppen Editors}, publisher = {Springer Vieweg}, address = {Wiesbaden}, organization = {International Conference on Seismic Design of Industrial Facilities }, isbn = {978-3-658-02809-1 (Print) ; 978-365-80281-0-7 (E-Book)}, doi = {10.1007/978-3-658-02810-7}, pages = {XIII, 450 S.}, year = {2014}, language = {en} } @article{KleinButenwegKlinkel2017, author = {Klein, Michel and Butenweg, Christoph and Klinkel, Sven}, title = {The Influence of Soil-Structure-Interaction on the Fatigue Analysis in the Foundation Design of Onshore Wind Turbines}, series = {Procedia Engineering}, volume = {199}, journal = {Procedia Engineering}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1877-7058}, doi = {10.1016/j.proeng.2017.09.325}, pages = {3218 -- 3223}, year = {2017}, language = {en} } @article{KhedimSchwarzerFaberetal.2004, author = {Khedim, Ahmed and Schwarzer, Klemens and Faber, Christian and M{\"u}ller, Christoph}, title = {Production d{\´e}centralis{\´e}e de l'eau potable {\`a} l'{\´e}nergie solaire}, series = {Desalination. 168 (2004), H. 1-3}, journal = {Desalination. 168 (2004), H. 1-3}, isbn = {0011-9164}, pages = {13 -- 20}, year = {2004}, language = {en} } @article{KernZischankHeidleretal.1998, author = {Kern, Alexander and Zischank, Wolfgang J. and Heidler, Fridolin and Wiesinger, J. [u.a.]}, title = {Shielding effectiveness of reinforced concrete cable ducts carrying partial lightning currents}, series = {Conference proceedings : 14th - 18th September 1998, [Burlington Hotel, Birmingham, United Kingdom] / organised by: School of Engineering and Advanced Technology, Staffordshire University, United Kingdom}, journal = {Conference proceedings : 14th - 18th September 1998, [Burlington Hotel, Birmingham, United Kingdom] / organised by: School of Engineering and Advanced Technology, Staffordshire University, United Kingdom}, address = {Birmingham}, year = {1998}, language = {en} } @article{KernZischank1992, author = {Kern, Alexander and Zischank, Wolfgang J.}, title = {The effect of parallel wires on the longitudinal voltage drop along shielded cables}, series = {Conference proceedings : 21st International Conference on Lightning Protection, Berlin Congress Center (BCC) Germany, September 22 - 25, 1992 = 21. Internationale Blitzschutzkonferenz / [proceedings ed. staff: J. Pilling ...]}, journal = {Conference proceedings : 21st International Conference on Lightning Protection, Berlin Congress Center (BCC) Germany, September 22 - 25, 1992 = 21. Internationale Blitzschutzkonferenz / [proceedings ed. staff: J. Pilling ...]}, publisher = {VDE-Verl.}, address = {Berlin [u.a.]}, isbn = {3-8007-1885-5}, pages = {570 S : Ill., graph. Darst., Kt.}, year = {1992}, language = {en} } @article{KernZischank1988, author = {Kern, Alexander and Zischank, Wolfgang J.}, title = {Melting effects on metal sheets and air termination wires caused by direct lightning strikes}, series = {Conference proceedings : Graz, {\"O}sterreich, 25. - 29. April 1988 / Gesamtorganisation: {\"O}sterr. Verb. f{\"u}r Elektrotechnik ({\"O}VE), Fachausschuß Blitzschutz ... [Red.: G. Diendorfer ...]}, journal = {Conference proceedings : Graz, {\"O}sterreich, 25. - 29. April 1988 / Gesamtorganisation: {\"O}sterr. Verb. f{\"u}r Elektrotechnik ({\"O}VE), Fachausschuß Blitzschutz ... [Red.: G. Diendorfer ...]}, publisher = {Eigenverl. des {\"O}VE}, address = {Wien}, isbn = {3-85133-001-3}, year = {1988}, 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{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{KernSchelthoffMathieu2010, author = {Kern, Alexander and Schelthoff, Christof and Mathieu, Moritz}, title = {Probability of lightning strikes to air-terminations of structures using the electro-geometrical model theory and the statistics of lightning current parameters}, pages = {750-1 -- 750-8}, year = {2010}, language = {en} } @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{KernSchelthoffMathieu2011, author = {Kern, Alexander and Schelthoff, Christof and Mathieu, Moritz}, title = {Probability of lightning strikes to air-terminations of structures using the electro-geometrical model theory and the statistics of lightning current parameters}, series = {Atmospheric Research. 104 (2011)}, journal = {Atmospheric Research. 104 (2011)}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {0169-8095}, year = {2011}, language = {en} } @inproceedings{KernSchelthoffMathieu2012, author = {Kern, Alexander and Schelthoff, Christof and Mathieu, Moritz}, title = {Calculation of interception efficiencies for mesh-type air-terminations according to IEC 62305-3 using a dynamic electro-geometrical model}, series = {International Conference on Lightning Protection (ICLP) : 2 - 7 Sept. 2012, Vienna}, booktitle = {International Conference on Lightning Protection (ICLP) : 2 - 7 Sept. 2012, Vienna}, publisher = {IEEE}, address = {Piscataway, NJ}, organization = {International Conference on Lightning Protection <2012, Wien>}, isbn = {978-1-4673-1896-9 (E-Book) ; 978-1-4673-1898-3 (Print)}, pages = {1 -- 6}, year = {2012}, language = {en} } @article{KernRothWiedmann1992, author = {Kern, Alexander and Roth, J. and Wiedmann, J.}, title = {Comparison of the damage for various types of fibre reinforced composites due to different lightning test standards (MIL-STD 1757 A, German military VG-standard 96903)}, series = {Proceedings of the 1992 International Aerospace and Ground Conference on Lightning and Static Electricity : October 6-8, 1992, Trump Taj Mahal, Atlantic City, NJ.}, journal = {Proceedings of the 1992 International Aerospace and Ground Conference on Lightning and Static Electricity : October 6-8, 1992, Trump Taj Mahal, Atlantic City, NJ.}, publisher = {U.S. Dept. of Transportation, Federal Aviation Administration}, address = {[Atlantic City, N.J.]}, pages = {Getr. Z{\"a}hl. : Ill. + addendum}, year = {1992}, language = {en} } @article{KernLangWiesingeretal.1989, author = {Kern, Alexander and Lang, U. and Wiesinger, J. and Zischank, Wolfgang J.}, title = {The longitudinal voltage of cable tubes with a screening mesh caused by partial lightning currents}, series = {Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA}, journal = {Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA}, publisher = {Mississippi State University}, address = {Mississippi State, Miss.}, year = {1989}, language = {en} } @article{KernKrichelNeskakisetal.2001, author = {Kern, Alexander and Krichel, Frank and Neskakis, Apostolos and M{\"u}ller, Klaus-Peter (u.a.)}, title = {Lightning protection design of a renewable energy hybrid-system without power mains connection}, year = {2001}, language = {en} } @inproceedings{KernKrichelMueller2001, author = {Kern, Alexander and Krichel, Frank and M{\"u}ller, Klaus-Peter}, title = {Lightning protection design of a renewable energy hybrid-system without power mains connection}, year = {2001}, abstract = {In the year 2000 a direct lightning strike to the hybridsystem without power mains connection VATALI on the Greek island Crete results in the destruction and damage of some mechanical and electrical components. The hybrid-system VATALI was not lightning protected at that time. The hardware damage costs are approx. 60,000 €. The exposed site of the hybrid-system on top of a mountain was and still is the reason for a high risk of lightning strikes. Also in the future further lightning strikes have to be taken into consideration. In the paper a fundamental lightning protection design concept for renewable energy hybrid-systems without power mains connection and protection measures against direct strikes and overvoltages are shown in detail. The design concept was realized exemplarily for the hybrid-system VATALI. The hardware costs for the protection measures were about 15,000 €. About 50\% of the costs are due to protection measures against direct strikes, 50\% are due to overvoltage protection. Future extensions, new installations, or modifications have to be included into the lightning protection design concept of the hybrid-system.}, language = {en} } @article{KernKrichel2004, author = {Kern, Alexander and Krichel, Frank}, title = {Considerations about the lightning protection system of mains independent renewable energy hybrid-systems - practical experiences}, series = {Journal of electrostatics. 60 (2004), H. 2-4}, journal = {Journal of electrostatics. 60 (2004), H. 2-4}, isbn = {0304-3886}, pages = {257 -- 263}, year = {2004}, language = {en} } @inproceedings{KernKrichel2002, author = {Kern, Alexander and Krichel, Frank}, title = {Considerations about the lightning protection system of mains independent renewable energy hybrid-systems - practical experiences}, year = {2002}, abstract = {In the paper a lightning protection design concept for renewable energy hybrid-systems without power mains connection is described. Based on a risk analysis protection measures against direct strikes and overvoltages are shown in an overview. The design concept is realized exemplarily for the hybrid-system VATALI on the Greek island Crete. VATALI, not lightning protected at that time, was a victim of a lightning strike in the year 2000 causing destructions and damages of some mechanical and electrical components with costs of approx. 60.000 €. The hardware costs for the protection measures were about 15.000 €: about 50\% of the costs are due to protection measures against direct strikes, 50\% are due to overvoltage protection.}, language = {en} } @article{KernKloetersPferdemenges2010, author = {Kern, Alexander and Kl{\"o}ters, Georg and Pferdemenges, J{\"o}rg}, title = {Optimised protection against lightning for the signalling and safety systems of level crossings on non-electrified railway lines}, series = {RTR : European Rail Technology Review}, volume = {50}, journal = {RTR : European Rail Technology Review}, number = {2}, isbn = {0079-9548}, year = {2010}, language = {en} } @inproceedings{KernImaniVashianiTimmermanns2021, author = {Kern, Alexander and Imani Vashiani, Anahita and Timmermanns, Tobias}, title = {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}, series = {35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA)}, booktitle = {35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA)}, publisher = {IEEE}, isbn = {978-1-6654-2346-5}, doi = {10.1109/ICLPandSIPDA54065.2021.9627465}, pages = {8 Seiten}, year = {2021}, abstract = {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 fa{\c{c}}ades 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 fa{\c{c}}ade is used the threat for human beings touching is usually very low, if the fa{\c{c}}ade is sufficiently interconnected and multiply connected to the lightning equipotential bonding or the earth termination system, resp.}, language = {en} } @article{KernHeidlerZischanketal.2002, author = {Kern, Alexander and Heidler, Fridolin and Zischank, Wolfgang J. and Frentzel, Ralf}, title = {Lightning current distribution and coupling to control cables in power plants or large industrial facilites}, year = {2002}, language = {en} } @inproceedings{KernHeidlerSeeversetal.2004, author = {Kern, Alexander and Heidler, Fridolin and Seevers, M. and Zischank, Wolfgang J.}, title = {Magnetic Fields and Induced Voltages in case of a Direct Strike - Comparison of Results obtained from Measurements at a Scaled Building to those of IEC 62305-4}, isbn = {0304-3886}, year = {2004}, abstract = {In the paper the results obtained from experiments at a modelled reinforced building in case of a direct lightning strike are compared with calculations. The comparison includes peak values of the magnetic field Hmax, its derivative (dH/dt)max and of induced voltages umax in typical cable routings. The experiments are performed at a 1:6 scaled building and the results are extrapolated using the similarity relations theory. The calculations are based on the approximate formulae given in IEC 62305-4 and have to be supplemented by a rough estimation of the additional shielding effect of a second reinforcement layer. The comparison shows, that the measured peak values of the magnetic field and its derivative are mostly lower than the calculated. The induced voltages are in good agreement. Hence, calculations of the induced voltages based on IEC 62305-4 are a good method for lightning protection studies of buildings, where the reinforcement is used as a grid-like electromagnetic shield.}, subject = {Blitz}, language = {en} } @article{KernHeidlerZischank1998, author = {Kern, Alexander and Heidler, F. and Zischank, W.}, title = {Induced overvoltages in cable ducts taking into account the current flow into earth / F. Heidler ; W. Zischank ... A. Kern ...}, series = {Conference proceedings : 14th - 18th September 1998, [Burlington Hotel, Birmingham, United Kingdom] / organised by: School of Engineering and Advanced Technology, Staffordshire University, United Kingdom}, journal = {Conference proceedings : 14th - 18th September 1998, [Burlington Hotel, Birmingham, United Kingdom] / organised by: School of Engineering and Advanced Technology, Staffordshire University, United Kingdom}, address = {Birmingham}, year = {1998}, language = {en} } @article{KernFrentzelBehrens2010, author = {Kern, Alexander and Frentzel, Ralf and Behrens, J{\"o}rg}, title = {Simulation of the transient voltages in the auxiliary power network of a large power plant in case of a direct lightning strike to the high-voltage overhead transmission line}, pages = {749-1 -- 749-7}, year = {2010}, language = {en} } @article{KernDrumm1994, author = {Kern, Alexander and Drumm, F.}, title = {Survey of the lightning threat for aircraft based on natural lightning data and fixed in the German Standard DIN VG 95371 / Part 10}, series = {Proceedings of the 1994 International Aerospace and Ground Conference on Lightning and Static Electricity : May 14 - 27, 1994, Bundesakademie f{\"u}r Wehrverwaltung und Wehrtechnik Mannheim ; final report / [conference chairman Jan Luiken TerHaseborg]}, journal = {Proceedings of the 1994 International Aerospace and Ground Conference on Lightning and Static Electricity : May 14 - 27, 1994, Bundesakademie f{\"u}r Wehrverwaltung und Wehrtechnik Mannheim ; final report / [conference chairman Jan Luiken TerHaseborg]}, publisher = {Bundesakad. f{\"u}r Wehrverwaltung und Wehrtechnik}, address = {Mannheim}, pages = {IX, 492 S : Ill., graph. Darst}, year = {1994}, language = {en} } @inproceedings{KernDikta2009, author = {Kern, Alexander and Dikta, Gerhard}, title = {Probability of damage of electrical and electronic systems due to indirect lightning flashes - investigation of data from German insurance companies}, year = {2009}, abstract = {In the presented paper data collected from the field related to damage statistics of electrical and electronic apparatus in household are reported and investigated. These damages (total number approx. 74000 cases), registered by five German insurance companies in 2005 and 2006, were adviced by customers as caused by lightning overvoltages. With the use of stochastical methods it is possible, to reasses the collected data and to distinguish between cases, which are with high probability caused by lightning overvoltages, and those, which are not. If there was an indication for a direct strike, this case was excluded, so the focus was only on indirect lightning flashes, i.e. only flashes to ground near the structure and flashes to or nearby an incoming service line were investigated. The data from the field contain the location of damaged apparatus (residence of the policy holder) and the distances of the nearest cloud-to-ground stroke to the location of the damage registered by the German lightning location network BLIDS at the date of damage. The statistical data along with some complementary numerical simulations allow to verify the correspondence of the Standards rules used for IEC 62305-2 with the field data and to define some correction needs. The results could lead to a better understanding whether a damage reported to an insurance company is really caused by indirect lightning, or not.}, subject = {Blitzschutz}, language = {en} } @inproceedings{KernBraun2014, author = {Kern, Alexander and Braun, Christian}, title = {Risk management according to IEC 62305-2 edition 2: 2010-12 assessment of structures with a risk of explosion}, series = {2014 International Conference on Lightning Protection (ICLP), Shanghai, China}, booktitle = {2014 International Conference on Lightning Protection (ICLP), Shanghai, China}, organization = {International Conference on Lightning Protection <2014, Shanghai>}, pages = {1237 -- 1242}, year = {2014}, abstract = {Risk management for structures with a risk of explosion should be considered very carefully when performing a risk analysis according to IEC 62305-2. In contrast to the 2006 edition of the standard, the 2010 edition describes the topic "Structures with a risk of explosion" in more detail. Moreover, in Germany separate procedures and parameters are defined for the risk analysis of structures with a risk of explosion (Supplement 3 of the German DIN EN 62305-2 standard). This paper describes the contents and the relevant calculations of this Supplement 3, together with a numerical example.}, language = {en} } @article{Kern1991, author = {Kern, Alexander}, title = {Simulation and measurement of melting effects on metal sheets caused by direct lightning strikes}, series = {1991 International Aerospace and Ground Conference on Lightning and Static Electricity : proceedings of a conference ... held at Cocoa Beach, Florida, April 16-19, 1991 / NASA}, journal = {1991 International Aerospace and Ground Conference on Lightning and Static Electricity : proceedings of a conference ... held at Cocoa Beach, Florida, April 16-19, 1991 / NASA}, address = {Washington, DC}, year = {1991}, language = {en} } @article{Kern1990, author = {Kern, Alexander}, title = {The heating of metal sheets caused by direct lightning strikes-model and measurement}, series = {20th ICPL / International Conference on Lightning Protection, Congress-Center Casino Interlaken, Switzerland, September 24-28, 1990 = Internationale Blitzschutzkonferenz, Congress-Center Casino Interlaken, Schweiz, 24.-28. September 1990}, journal = {20th ICPL / International Conference on Lightning Protection, Congress-Center Casino Interlaken, Switzerland, September 24-28, 1990 = Internationale Blitzschutzkonferenz, Congress-Center Casino Interlaken, Schweiz, 24.-28. September 1990}, publisher = {Schweizerischer Elektrotechnischer Verein}, address = {[Z{\"u}rich]}, pages = {[522] S. (getr. Z{\"a}hl.) : Ill.}, year = {1990}, language = {en} } @article{Kern1989, author = {Kern, Alexander}, title = {Time dependent temperature distribution in metal sheets caused by direct lightning strikes}, series = {Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA}, journal = {Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA}, publisher = {Mississippi State University}, address = {Mississippi State, Miss.}, year = {1989}, language = {en} } @article{KellerRathBruckmannetal.2020, author = {Keller, Johannes and Rath, Volker and Bruckmann, Johanna and Mottaghy, Darius and Clauser, Christoph and Wolf, Andreas and Seidler, Ralf and B{\"u}cker, H. Martin and Klitzsch, Norbert}, title = {SHEMAT-Suite: An open-source code for simulating flow, heat and species transport in porous media}, series = {SoftwareX}, volume = {12}, journal = {SoftwareX}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2352-7110}, doi = {10.1016/j.softx.2020.100533}, pages = {9}, year = {2020}, abstract = {SHEMAT-Suite is a finite-difference open-source code for simulating coupled flow, heat and species transport in porous media. The code, written in Fortran-95, originates from geoscientific research in the fields of geothermics and hydrogeology. It comprises: (1) a versatile handling of input and output, (2) a modular framework for subsurface parameter modeling, (3) a multi-level OpenMP parallelization, (4) parameter estimation and data assimilation by stochastic approaches (Monte Carlo, Ensemble Kalman filter) and by deterministic Bayesian approaches based on automatic differentiation for calculating exact (truncation error-free) derivatives of the forward code.}, language = {en} } @inproceedings{KarimiButenwegToll2005, author = {Karimi, Iman and Butenweg, Christoph and Toll, Britta}, title = {Vulnerability assessment of industrial facilities}, series = {Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping}, booktitle = {Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping}, publisher = {Civil-Comp Press}, address = {Stirling}, organization = {International Conference on Civil, Structural and Environmental Engineering Computing <10, 2005, Rome>}, isbn = {1-905088-00-0}, doi = {10.4203/ccp.81.34}, pages = {34, 73 -- 75}, year = {2005}, language = {en} } @inproceedings{KalkerTollHolleretal.2004, author = {Kalker, Ines and Toll, B. and Holler, Stefan and Butenweg, Christoph and Topping, B. H. V. and Mota Soares, C. A.}, title = {Capacity analysis of textile retrofitted unreinforced masonry}, series = {Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping ...}, booktitle = {Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping ...}, publisher = {Civil-Comp Press}, address = {Stirling}, organization = {International Conference on Computational Structures Technology <7, 2004, Lissabon>}, isbn = {0-948749-95-4}, doi = {10.4203/ccp.79.194}, pages = {431 -- 432}, year = {2004}, language = {en} } @inproceedings{KalkerNeumannButenwegetal.2005, author = {Kalker, Ines and Neumann, M. and Butenweg, Christoph and Holler, Stefan}, title = {Modelling of textile strengthened masonry}, series = {Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping}, booktitle = {Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping}, publisher = {Civil-Comp Press}, address = {Stirling}, organization = {International Conference on Civil, Structural and Environmental Engineering Computing <10, 2005, Rome>}, isbn = {1-905088-00-0}, doi = {10.4203/ccp.81.184}, pages = {447 -- 448}, year = {2005}, language = {en} } @article{KahmannRauschPluemeretal.2022, author = {Kahmann, Stephanie L. and Rausch, Valentin and Pl{\"u}mer, Jonathan and M{\"u}ller, Lars P. and Pieper, Martin and Wegmann, Kilian}, title = {The automized fracture edge detection and generation of three-dimensional fracture probability heat maps}, series = {Medical Engineering \& Physics}, volume = {2022}, journal = {Medical Engineering \& Physics}, number = {110}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1350-4533}, pages = {7 Seiten}, year = {2022}, abstract = {With proven impact of statistical fracture analysis on fracture classifications, it is desirable to minimize the manual work and to maximize repeatability of this approach. We address this with an algorithm that reduces the manual effort to segmentation, fragment identification and reduction. The fracture edge detection and heat map generation are performed automatically. With the same input, the algorithm always delivers the same output. The tool transforms one intact template consecutively onto each fractured specimen by linear least square optimization, detects the fragment edges in the template and then superimposes them to generate a fracture probability heat map. We hypothesized that the algorithm runs faster than the manual evaluation and with low (< 5 mm) deviation. We tested the hypothesis in 10 fractured proximal humeri and found that it performs with good accuracy (2.5 mm ± 2.4 mm averaged Euclidean distance) and speed (23 times faster). When applied to a distal humerus, a tibia plateau, and a scaphoid fracture, the run times were low (1-2 min), and the detected edges correct by visual judgement. In the geometrically complex acetabulum, at a run time of 78 min some outliers were considered acceptable. An automatically generated fracture probability heat map based on 50 proximal humerus fractures matches the areas of high risk of fracture reported in medical literature. Such automation of the fracture analysis method is advantageous and could be extended to reduce the manual effort even further.}, language = {en} } @article{JildehWagnerSchoeningetal.2015, author = {Jildeh, Zaid B. and Wagner, Torsten and Sch{\"o}ning, Michael Josef and Pieper, Martin}, title = {Simulating the electromagnetic-thermal treatment of thin aluminium layers for adhesion improvement}, series = {Physica status solidi (a)}, volume = {Vol. 212}, journal = {Physica status solidi (a)}, number = {6}, publisher = {Wiley}, address = {Weinheim}, issn = {1862-6319}, doi = {10.1002/pssa.201431893}, pages = {1234 -- 1241}, year = {2015}, abstract = {A composite layer material used in packaging industry is made from joining layers of different materials using an adhesive. An important processing step in the production of aluminium-containing composites is the surface treatment and consequent coating of adhesive material on the aluminium surface. To increase adhesion strength between aluminium layer and the adhesive material, the foil is heat treated. For efficient heating, induction heating was considered as state-of-the-art treatment process. Due to the complexity of the heating process and the unpredictable nature of the heating source, the control of the process is not yet optimised. In this work, a finite element analysis of the process was established and various process parameters were studied. The process was simplified and modelled in 3D. The numerical model contains an air domain, an aluminium layer and a copper coil fitted with a magnetic field concentrating material. The effect of changing the speed of the aluminium foil (or rolling speed) was studied with the change of the coil current. Statistical analysis was used for generating a general control equation of coil current with changing rolling speed.}, language = {en} } @article{JablonowskiKollmannNabeletal.2016, author = {Jablonowski, Nicolai David and Kollmann, Tobias and Nabel, Moritz and Damm, Tatjana and Klose, Holger and M{\"u}ller, Michael and Bl{\"a}sing, Marc and Seebold, S{\"o}ren and Krafft, Simone and Kuperjans, Isabel and Dahmen, Markus and Schurr, Ulrich}, title = {Valorization of Sida (Sida hermaphrodita) biomass for multiple energy purposes}, series = {GCB [Global Change Biology] Bioenergy}, volume = {9}, journal = {GCB [Global Change Biology] Bioenergy}, number = {1}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1757-1707 (online)}, doi = {10.1111/gcbb.12346}, pages = {202 -- 214}, year = {2016}, abstract = {The performance and biomass yield of the perennial energy plant Sida hermaphrodita (hereafter referred to as Sida) as a feedstock for biogas and solid fuel was evaluated throughout one entire growing period at agricultural field conditions. A Sida plant development code was established to allow comparison of the plant growth stages and biomass composition. Four scenarios were evaluated to determine the use of Sida biomass with regard to plant development and harvest time: (i) one harvest for solid fuel only; (ii) one harvest for biogas production only; (iii) one harvest for biogas production, followed by a harvest of the regrown biomass for solid fuel; and (iv) two consecutive harvests for biogas production. To determine Sida's value as a feedstock for combustion, we assessed the caloric value, the ash quality, and melting point with regard to DIN EN ISO norms. The results showed highest total dry biomass yields of max. 25 t ha⁻¹, whereas the highest dry matter of 70\% to 80\% was obtained at the end of the growing period. Scenario (i) clearly indicated the highest energy recovery, accounting for 439 288 MJ ha⁻¹; the energy recovery of the four scenarios from highest to lowest followed this order: (i) ≫ (iii) ≫ (iv) > (ii). Analysis of the Sida ashes showed a high melting point of >1500 °C, associated with a net calorific value of 16.5-17.2 MJ kg⁻¹. All prerequisites for DIN EN ISO norms were achieved, indicating Sida's advantage as a solid energy carrier without any post-treatment after harvesting. Cell wall analysis of the stems showed a constant lignin content after sampling week 16 (July), whereas cellulose had already reached a plateau in sampling week 4 (April). The results highlight Sida as a promising woody, perennial plant, providing biomass for flexible and multipurpose energy applications.}, language = {en} } @inproceedings{HoeflerKneerGrossetal.2015, author = {H{\"o}fler, M. and Kneer, R. and Groß, Rolf Fritz and Kehrmann, K.}, title = {Chemical determination of oxygen transfer rates, transfer efficiencies and interphases evoked by aeration elements for liquid flows}, series = {Computational Methods in Multiphase Flow VIII. - (WIT Transactions on Engineering Sciences ; Volume 89)}, booktitle = {Computational Methods in Multiphase Flow VIII. - (WIT Transactions on Engineering Sciences ; Volume 89)}, editor = {Vorobieff, P.}, publisher = {WIT Press}, address = {Southampton}, isbn = {978-1-84564-946-3 (Print-Ausgabe)}, issn = {1746-4471}, pages = {89 -- 101}, year = {2015}, language = {en} } @article{HoylerWhiteHoff1998, author = {Hoyler, Friedrich and White, D.H. and Hoff, R. W.}, title = {Nuclear structure of 241Pu from neutron-capture, (d,p)-, and (d,t)-reaction measurements / D. H. White ; R. W. Hoff ... F. Hoyler ...}, series = {Physical review / C. 57 (1998), H. 3}, journal = {Physical review / C. 57 (1998), H. 3}, isbn = {0556-2813}, pages = {1112 -- 1133}, year = {1998}, language = {en} } @article{HoylerShiSchreckenbacketal.1999, author = {Hoyler, Friedrich and Shi, Z. R. and Schreckenback, K. and Aprahamian, A.}, title = {Complete spectroscopy and the 162Dy nucleus / Z. R. Shi ; K. Schreckenbach ; A. Aprahamian ... F. Hoyler ...}, series = {AIP conference proceedings (1999)}, journal = {AIP conference proceedings (1999)}, isbn = {0094-243X}, pages = {237 -- 238}, year = {1999}, language = {en} } @article{HoylerProkofjevsBondarenko1997, author = {Hoyler, Friedrich and Prokofjevs, P. and Bondarenko, V.}, title = {Study of nuclear structure of 164Dy in (n, gamma) and(n, n' gamma) reactions / P. Prokofjevs ; V. Bondarenko ; F. Hoyler ...}, isbn = {1122-1437}, pages = {759}, year = {1997}, language = {en} } @article{HoylerPetkovAndrejtscheff1988, author = {Hoyler, Friedrich and Petkov, P. and Andrejtscheff, W.}, title = {Absolute E0, E1 and E2 transition rates in even-even nuclei obtained in thermal neutron capture / P. Petkov ; W. Andrejtscheff ... F. Hoyler ...}, series = {Journal of Physics G. 14 (1988), H. S}, journal = {Journal of Physics G. 14 (1988), H. S}, isbn = {0305-4616}, pages = {S97 -- S102}, year = {1988}, language = {en} } @article{HoylerMohrStaudt1994, author = {Hoyler, Friedrich and Mohr, P. and Staudt, G.}, title = {Alpha-cluster states of 212po in a realistic potential model}, series = {Physical review / C. 50 (1994), H. 5}, journal = {Physical review / C. 50 (1994), H. 5}, isbn = {0556-2813}, pages = {2631 -- 2634}, year = {1994}, language = {en} } @article{HoylerKesslerGreene1988, author = {Hoyler, Friedrich and Kessler, E. G. and Greene, G. L.}, title = {High accuracy, absolute wavelength determination of capture gamma-ray energies for E\&\#8804;5 MeV and the direct determination of binding energies in light nuclei / E.G. Kessler ; G. L. Greene ... F. Hoyler}, series = {Journal of Physics G. 14 (1988), H. S}, journal = {Journal of Physics G. 14 (1988), H. S}, isbn = {0305-4616}, pages = {S167 -- S174}, year = {1988}, language = {en} } @article{HoylerHoffBoerner1996, author = {Hoyler, Friedrich and Hoff, R. W. and B{\"o}rner, H. G.}, title = {Nuclear structure of 170Tm from neutron-capture and (d,p)-reaction measurements / R. W. Hoff ; H. G. B{\"o}rner ... F. Hoyler ...}, series = {Physical review / C. 54 (1996), H. 1}, journal = {Physical review / C. 54 (1996), H. 1}, isbn = {0556-2813}, pages = {78 -- 116}, year = {1996}, language = {en} } @article{HoylerHamadaHamilton1987, author = {Hoyler, Friedrich and Hamada, S. A. and Hamilton, W. D.}, title = {Gamma-gamma directional correlation measurements in 84Kr following thermal neutron capture by natural krypton / S. A. Hamada ; W. D. Hamilton ; F. Hoyler}, series = {Journal of physics / G. 13 (1987), H. 9}, journal = {Journal of physics / G. 13 (1987), H. 9}, isbn = {0305-4616}, pages = {1143 -- 1163}, year = {1987}, language = {en} } @article{HoylerDrissiTercier1997, author = {Hoyler, Friedrich and Drissi, S. and Tercier, P. A.}, title = {The 112Cd laboratory - An extension : EO strengths, multiphonon states and coupled vibrations / S. Drissi ; P. A. Tercier ... F. Hoyler ...}, series = {Nuclear physics / A. 614 (1997), H. 2}, journal = {Nuclear physics / A. 614 (1997), H. 2}, isbn = {0375-9474}, pages = {137 -- 182}, year = {1997}, language = {en} } @article{HoylerCorminboeufJolie1997, author = {Hoyler, Friedrich and Corminboeuf, F. and Jolie, J.}, title = {Kp=4+ double-gvibration in 164Dy / F. Corminboeuf ; J. Jolie ... F. Hoyler ...}, series = {Physical review / C. 56 (1997), H. 3}, journal = {Physical review / C. 56 (1997), H. 3}, isbn = {0556-2813}, pages = {R1201}, year = {1997}, language = {en} } @article{HoylerColvinRobinson1988, author = {Hoyler, Friedrich and Colvin, G. G. and Robinson, S. J.}, title = {100Ru studied by thermal neutron capture / G. G. Colvin ; S. J. Robinson ; F. Hoyler}, series = {Journal of Physics G. 14 (1988), H. 11}, journal = {Journal of Physics G. 14 (1988), H. 11}, isbn = {0305-4616}, pages = {1411 -- 1421}, year = {1988}, language = {en} } @article{HoylerColvinRobinson1987, author = {Hoyler, Friedrich and Colvin, G. G. and Robinson, S. J.}, title = {E0 transitions in 106Pd studied by neutron capture / G. G. Colvin ; F. Hoyler ; S. J. Robinson}, series = {Journal of physics / G. 13 (1987), H. 2}, journal = {Journal of physics / G. 13 (1987), H. 2}, isbn = {0305-4616}, pages = {191 -- 204}, year = {1987}, language = {en} } @article{HoylerCollinsEid1989, author = {Hoyler, Friedrich and Collins, S. P. and Eid, S. A.}, title = {A search for mixed-symmetry states in the mass A approximately 50 region / S. P. Collins ; S. A. Eid ... F. Hoyler}, series = {Journal of Physics G. 15 (1989), H. 3}, journal = {Journal of Physics G. 15 (1989), H. 3}, isbn = {0954-3899}, pages = {321 -- 332}, year = {1989}, language = {en} } @article{HoylerCizewskiColvin1988, author = {Hoyler, Friedrich and Cizewski, J. A. and Colvin, G. G.}, title = {Neutron capture on 193Ir and \&\#963;<\&\#963; SUB>max states in 195Ir / J. A. Cizewski ; G. G. Colvin ... F. Hoyler ...}, series = {Journal of Physics G. 14 (1988), H. S}, journal = {Journal of Physics G. 14 (1988), H. S}, isbn = {0305-4616}, pages = {S103 -- S108}, year = {1988}, language = {en} } @article{HoylerCataDanilGuazzoni1996, author = {Hoyler, Friedrich and Cata-Danil, G. and Guazzoni, P.}, title = {(p,t) transition strengths for nuclei around Z = 50 and the IBA model / G. Cata-Danil ; P. Guazzoni ... F. Hoyler ...}, series = {Journal of physics / G. 22 (1996), H. 1}, journal = {Journal of physics / G. 22 (1996), H. 1}, isbn = {0305-4616}, pages = {107 -- 114}, year = {1996}, language = {en} } @article{HoylerBoernerRobinson1988, author = {Hoyler, Friedrich and B{\"o}rner, H. G. and Robinson, S.}, title = {Recent developments at the ILL (n,\&\#947;)-facility}, series = {Journal of Physics G. 14 (1988), H. S}, journal = {Journal of Physics G. 14 (1988), H. S}, isbn = {0305-4616}, pages = {S161 -- S165}, year = {1988}, language = {en} } @article{HoylerBauskeArias1993, author = {Hoyler, Friedrich and Bauske, I. and Arias, J. M.}, title = {First observation of scissors mode states in an odd-mass nucleus / I. Bauske ; J. M. Arias ... F. Hoyler ...}, series = {Physical review letters. 71 (1993), H. 7}, journal = {Physical review letters. 71 (1993), H. 7}, isbn = {0031-9007}, pages = {975 -- 978}, year = {1993}, language = {en} } @article{HoylerBalodisProkofjevs1998, author = {Hoyler, Friedrich and Balodis, M. and Prokofjevs, P.}, title = {Level scheme of 194Ir / M. Balodis ; P. Prokofjevs ... F. Hoyler ...}, series = {Nuclear physics / A. 641 (1998), H. 2}, journal = {Nuclear physics / A. 641 (1998), H. 2}, isbn = {0375-9474}, pages = {133 -- 187}, year = {1998}, language = {en} } @article{HoylerAprahamianWuetal.2006, author = {Hoyler, Friedrich and Aprahamian, A. and Wu, X. and Lesher, S. R.}, title = {Complete spectroscopy of the 162Dy nucleus / Aprahamian, A. ; Wu, X. ; Lesher, S. R. ; Warner, D. D. ; Gelletly, W. ; B{\"o}rner, H. G. ; Hoyler, F. ; Schreckenbach, K. ; Carsten R. F. ; Shi, Z. R. ; Kusnezov, D. ; Ibrahim, M. ; Macchiavelli, A. O. ; Brinkman}, series = {Nuclear physics / A. 764 (2006)}, journal = {Nuclear physics / A. 764 (2006)}, isbn = {0375-9474}, pages = {42 -- 78}, year = {2006}, language = {en} } @article{HoylerAndrejtscheffPetkov1986, author = {Hoyler, Friedrich and Andrejtscheff, W. and Petkov, P.}, title = {A mixed symmetry or quasineutron pair interpretation of the Kpi =03+ level in 172Yb / W. Andrejtscheff ; P. Petkov ... F. Hoyler}, series = {Journal of physics / G. 12 (1986), H. 6}, journal = {Journal of physics / G. 12 (1986), H. 6}, isbn = {0305-4616}, pages = {L151 -- L156}, year = {1986}, language = {en} } @article{Hoyler1985, author = {Hoyler, Friedrich}, title = {Microscopic and semimicroscopic analysis of the reaction 27al- (p,\#ga)24mg in the energy range between 20 and 45 mev}, series = {Physical review / C, nuclear physics. 31 (1985), H. 1}, journal = {Physical review / C, nuclear physics. 31 (1985), H. 1}, isbn = {0556-2813}, pages = {17}, year = {1985}, language = {en} } @article{HoskensRoerTolstikhinetal.2000, author = {Hoskens, R.C.P. and Roer, T.G. van de and Tolstikhin, V.I. and F{\"o}rster, Arnold}, title = {Hot electron injection laser: vertically integrated transistor-laser structure for high-speed, low-chirp direct modulation}, series = {LEOS 2000 : 2000 IEEE annual meeting conference proceedings; 13th annual meeting; IEEE Lasers and Electro-Optics Society 2000 annual meeting; 13-16 November 2000, The Westin Rio Mar Beach, Rio Grande, Puerto Rico. Vol. 2}, journal = {LEOS 2000 : 2000 IEEE annual meeting conference proceedings; 13th annual meeting; IEEE Lasers and Electro-Optics Society 2000 annual meeting; 13-16 November 2000, The Westin Rio Mar Beach, Rio Grande, Puerto Rico. Vol. 2}, publisher = {IEEE Service Center}, address = {Piscataway, NJ}, isbn = {0-7803-5947-X}, pages = {444 -- 445}, year = {2000}, language = {en} } @article{HoskensTolstikhinFoersteretal.2000, author = {Hoskens, R. C. P. and Tolstikhin, V.I. and F{\"o}rster, Arnold and Roer, T.G. van de}, title = {Vertically integrated transistor-laser structure, take 2}, series = {WOCSDICE 2000, 24th Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe : May 29 - June 02, 2000, Aegean Sea, Greece.}, journal = {WOCSDICE 2000, 24th Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe : May 29 - June 02, 2000, Aegean Sea, Greece.}, publisher = {Univ. of Michigan}, address = {Ann Arbor, Mich.}, isbn = {0970311109}, pages = {Getr. Z{\"a}hlung [ca. 200 S.]}, year = {2000}, language = {en} } @article{HoltschoppenButenwegMeskouris2009, author = {Holtschoppen, Britta and Butenweg, Christoph and Meskouris, Konstantin}, title = {Seismic design of non-structural components in industrial facilities}, series = {International journal of engineering under uncertainty}, volume = {Volume 1}, journal = {International journal of engineering under uncertainty}, issn = {0975-4806}, pages = {1 -- 13}, year = {2009}, language = {en} } @article{HollerButenwegNohetal.2004, author = {Holler, S. and Butenweg, Christoph and Noh, S.-Y. and Meskouris, Konstantin}, title = {Computational model of textile-reinforced concrete structures}, series = {Computers \& structures : an international journal}, volume = {Volume 82}, journal = {Computers \& structures : an international journal}, number = {Issues 23-26}, issn = {1879-2243 (E-Journal); 0045-7949 (Print)}, doi = {10.1016/j.compstruc.2004.03.076}, pages = {1971 -- 1979}, year = {2004}, language = {en} } @inproceedings{HollerButenwegNohetal.2002, author = {Holler, S. and Butenweg, Christoph and Noh, S.-Y. and Meskouris, Konstantin}, title = {Numerical simulation of textile-reinforced concrete structures}, series = {Proceedings of the Sixth International Conference on Computational Structures Technology : [Prague, Czech Republic, 4 - 6 September 2002] / ed. by B. H. V. Topping and Z. Bittnar. (Civil-Comp Press books on computational engineering)}, booktitle = {Proceedings of the Sixth International Conference on Computational Structures Technology : [Prague, Czech Republic, 4 - 6 September 2002] / ed. by B. H. V. Topping and Z. Bittnar. (Civil-Comp Press books on computational engineering)}, publisher = {Civil-Comp Press}, address = {Stirling}, organization = {International Conference on Computational Structures Technology <6, 2002, Prag>}, isbn = {0-948749-83-0}, pages = {287 -- 288}, year = {2002}, 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{HoffstadtCheenakulaNikolauszetal.2023, author = {Hoffstadt, Kevin and Cheenakula, Dheeraja and Nikolausz, Marcell and Krafft, Simone and Harms, Hauke and Kuperjans, Isabel}, title = {Design and construction of a new reactor for flexible biomethanation of hydrogen}, series = {Fermentation}, volume = {9}, journal = {Fermentation}, number = {8}, publisher = {MDPI}, address = {Basel}, issn = {2311-5637}, doi = {10.3390/fermentation9080774}, pages = {1 -- 16}, year = {2023}, abstract = {The increasing share of renewable electricity in the grid drives the need for sufficient storage capacity. Especially for seasonal storage, power-to-gas can be a promising approach. Biologically produced methane from hydrogen produced from surplus electricity can be used to substitute natural gas in the existing infrastructure. Current reactor types are not or are poorly optimized for flexible methanation. Therefore, this work proposes a new reactor type with a plug flow reactor (PFR) design. Simulations in COMSOL Multiphysics ® showed promising properties for operation in laminar flow. An experiment was conducted to support the simulation results and to determine the gas fraction of the novel reactor, which was measured to be 29\%. Based on these simulations and experimental results, the reactor was constructed as a 14 m long, 50 mm diameter tube with a meandering orientation. Data processing was established, and a step experiment was performed. In addition, a kLa of 1 h-1 was determined. The results revealed that the experimental outcomes of the type of flow and gas fractions are in line with the theoretical simulation. The new design shows promising properties for flexible methanation and will be tested.}, language = {en} } @article{HoffschmidtTellezValverdeetal.2003, author = {Hoffschmidt, Bernhard and T{\´e}llez, F{\´e}lix M. and Valverde, Antonio and Fernandez, Valerio and Fernandez, Jesus}, title = {Performance evaluation of the 200-kWth HiTRec-II open volumetric air receiver}, series = {Journal of solar energy engineering}, volume = {Vol. 125}, journal = {Journal of solar energy engineering}, number = {Iss. 1}, pages = {87 -- 94}, year = {2003}, language = {en} } @article{HoffschmidtRiffelmannKroedeletal.2001, author = {Hoffschmidt, Bernhard and Riffelmann, K.-J. and Kr{\"o}del, M. and Rietbrock, P.}, title = {PHITREC - pressurized volumetric air receiver for high temperature solar applications / K.-J. Riffelmann ; B. Hofschmidt ...}, series = {Forschungsbericht : DLR FB. 10 (2001)}, journal = {Forschungsbericht : DLR FB. 10 (2001)}, isbn = {0939-2963}, pages = {73 -- 74}, year = {2001}, language = {en} } @article{HoffschmidtPitzPaalBoehmer1999, author = {Hoffschmidt, Bernhard and Pitz-Paal, Robert and B{\"o}hmer, M.}, title = {A new closed/open volumetric receiver concept for parabolictrough collectors (test results)}, series = {Journal de physique. 9 (1999), H. 3}, journal = {Journal de physique. 9 (1999), H. 3}, isbn = {1155-4339}, pages = {3}, year = {1999}, language = {en} } @article{HoffschmidtPitzPaalBoehmer1997, author = {Hoffschmidt, Bernhard and Pitz-Paal, R. and B{\"o}hmer, M.}, title = {Experimental and numerical evaluation of the performance and flow stability of different types of open volumetric absorbers under non-homogeneous irradiation / R. Pitz-Pahl ; B. Hofschmidt ; M. B{\"o}hmer ...}, series = {Solar energy. 60 (1997), H. 3-4}, journal = {Solar energy. 60 (1997), H. 3-4}, isbn = {0038-092X}, pages = {135 -- 150}, year = {1997}, language = {en} } @article{HoffschmidtKruegerHennecke2000, author = {Hoffschmidt, Bernhard and Kr{\"u}ger, D. and Hennecke, K.}, title = {Results from parabolic trough systems for process heat at the DLR Cologne / D. Kr{\"u}ger ; B. Hoffschmidt ; K. Hennecke ...}, series = {Solar thermal 2000 : proceedings of the 10th SolarPACES International Symposium on Solar Thermal Concentrating Technologies, Sydney, Australia, 8 - 10 March 2000 ; part of the}, journal = {Solar thermal 2000 : proceedings of the 10th SolarPACES International Symposium on Solar Thermal Concentrating Technologies, Sydney, Australia, 8 - 10 March 2000 ; part of the}, address = {Sydney}, pages = {113 -- 120}, year = {2000}, language = {en} } @article{HoffschmidtFernandezKonstandopoulus2001, author = {Hoffschmidt, Bernhard and Fernandez, V. and Konstandopoulus, A. G.}, title = {Development of ceramic volumetric receiver technology}, series = {Forschungsbericht : DLR FB. 10 (2001)}, journal = {Forschungsbericht : DLR FB. 10 (2001)}, isbn = {0939-2963}, pages = {51 -- 61}, year = {2001}, language = {en} } @article{HoffschmidtFendPitzPaaletal.2004, author = {Hoffschmidt, Bernhard and Fend, Thomas and Pitz-Paal, Robert and Reutter, Oliver}, title = {Two novel high-porosity materials as volumetric receivers for concentrated solar radiation / Thomas Fend ; Robert Pitz-Paal ; Oliver Reutter ... Bernhard Hoffschmidt}, series = {Solar energy materials \& solar cells. 84 (2004), H. 1}, journal = {Solar energy materials \& solar cells. 84 (2004), H. 1}, isbn = {0927-0248}, pages = {291 -- 304}, year = {2004}, language = {en} } @article{HoffschmidtFendPitzPaaletal.2004, author = {Hoffschmidt, Bernhard and Fend, Thomas and Pitz-Paal, Robert and Reutter, Oliver}, title = {Porous materials as open volumetric solar receivers - Experimental determination of thermophysical and heat transfer properties / Thomas Fend ; Bernhard Hoffschmidt ...}, series = {Energy. 29 (2004), H. 5}, journal = {Energy. 29 (2004), H. 5}, isbn = {0360-5442}, pages = {823 -- 834}, year = {2004}, 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{HoffschmidtBuckFend2001, author = {Hoffschmidt, Bernhard and Buck, R. and Fend, Thomas}, title = {Porous materials as volumetric solar receivers : experimental approach towards a detailed characterisation of instability problems / R. Buck ; T. Fend ; B. Hoffschmidt ...}, series = {Forschungsbericht : DLR FB. 10 (2001)}, journal = {Forschungsbericht : DLR FB. 10 (2001)}, isbn = {0939-2963}, pages = {71 -- 72}, year = {2001}, language = {en} } @article{HoffschmidtBeckerFend2006, author = {Hoffschmidt, Bernhard and Becker, M. and Fend, Thomas}, title = {Theoretical and numerical investigation of flow stability in porous materials applied as volumetric solar receivers / M. Becker ; T. Fend ; B. Hoffschmidt ...}, series = {Solar energy. 80 (2006), H. 10}, journal = {Solar energy. 80 (2006), H. 10}, isbn = {0038-092X}, pages = {1241 -- 1248}, year = {2006}, language = {en} } @incollection{HoffschmidtAlexopoulosRauetal.2022, author = {Hoffschmidt, Bernhard and Alexopoulos, Spiros and Rau, Christoph and Sattler, Johannes, Christoph and Anthrakidis, Anette and Teixeira Boura, Cristiano Jos{\´e} and O'Connor, B. and Chico Caminos, R.A. and Rend{\´o}n, C. and Hilger, P.}, title = {Concentrating solar power}, series = {Comprehensive Renewable Energy (Second Edition) / Volume 3: Solar Thermal Systems: Components and Applications}, booktitle = {Comprehensive Renewable Energy (Second Edition) / Volume 3: Solar Thermal Systems: Components and Applications}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {978-0-12-819734-9}, pages = {670 -- 724}, year = {2022}, abstract = {The focus of this chapter is the production of power and the use of the heat produced from concentrated solar thermal power (CSP) systems. The chapter starts with the general theoretical principles of concentrating systems including the description of the concentration ratio, the energy and mass balance. The power conversion systems is the main part where solar-only operation and the increase in operational hours. Solar-only operation include the use of steam turbines, gas turbines, organic Rankine cycles and solar dishes. The operational hours can be increased with hybridization and with storage. Another important topic is the cogeneration where solar cooling, desalination and of heat usage is described. Many examples of commercial CSP power plants as well as research facilities from the past as well as current installed and in operation are described in detail. The chapter closes with economic and environmental aspects and with the future potential of the development of CSP around the world.}, language = {en} } @incollection{HoffschmidtAlexopoulosRauetal.2021, author = {Hoffschmidt, Bernhard and Alexopoulos, Spiros and Rau, Christoph and Sattler, Johannes, Christoph and Anthrakidis, Anette and Teixeira Boura, Cristiano Jos{\´e} and O'Connor, B. and Caminos, R.A. Chico and Rend{\´o}n, C. and Hilger, P.}, title = {Concentrating Solar Power}, series = {Earth systems and environmental sciences}, booktitle = {Earth systems and environmental sciences}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {978-0-12-409548-9}, doi = {10.1016/B978-0-12-819727-1.00089-3}, year = {2021}, abstract = {The focus of this chapter is the production of power and the use of the heat produced from concentrated solar thermal power (CSP) systems. The chapter starts with the general theoretical principles of concentrating systems including the description of the concentration ratio, the energy and mass balance. The power conversion systems is the main part where solar-only operation and the increase in operational hours. Solar-only operation include the use of steam turbines, gas turbines, organic Rankine cycles and solar dishes. The operational hours can be increased with hybridization and with storage. Another important topic is the cogeneration where solar cooling, desalination and of heat usage is described. Many examples of commercial CSP power plants as well as research facilities from the past as well as current installed and in operation are described in detail. The chapter closes with economic and environmental aspects and with the future potential of the development of CSP around the world.}, language = {en} } @incollection{HoffschmidtAlexopoulosGoettscheetal.2022, author = {Hoffschmidt, Bernhard and Alexopoulos, Spiros and G{\"o}ttsche, Joachim and Sauerborn, Markus and Kaufhold, O.}, title = {High Concentration Solar Collectors}, series = {Comprehensive Renewable Energy (Second Edition) / Volume 3: Solar Thermal Systems: Components and Applications}, booktitle = {Comprehensive Renewable Energy (Second Edition) / Volume 3: Solar Thermal Systems: Components and Applications}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {978-0-12-819734-9}, doi = {10.1016/B978-0-12-819727-1.00058-3}, pages = {198 -- 245}, year = {2022}, abstract = {Solar thermal concentrated power is an emerging technology that provides clean electricity for the growing energy market. To the solar thermal concentrated power plant systems belong the parabolic trough, the Fresnel collector, the solar dish, and the central receiver system. For high-concentration solar collector systems, optical and thermal analysis is essential. There exist a number of measurement techniques and systems for the optical and thermal characterization of the efficiency of solar thermal concentrated systems. For each system, structure, components, and specific characteristics types are described. The chapter presents additionally an outline for the calculation of system performance and operation and maintenance topics. One main focus is set to the models of components and their construction details as well as different types on the market. In the later part of this article, different criteria for the choice of technology are analyzed in detail.}, language = {en} } @article{HodelOrzatiMarsoetal.2000, author = {Hodel, U. and Orzati, A. and Marso, M. and Homann, O. and Fox, A. and Hart, A. v. d. and F{\"o}rster, Arnold and Kordos, P. and L{\"u}th, H.}, title = {A novel InAlAs/InGaAs layer structure for monolithically integrated photoreceiver}, series = {Conference Proceedings: 2000 International Conference on Indium Phosphide and related materials}, journal = {Conference Proceedings: 2000 International Conference on Indium Phosphide and related materials}, publisher = {IEEE Service Center}, address = {Piscataway, NJ}, isbn = {0-7803-6320-5}, pages = {466 -- 469}, year = {2000}, language = {en} } @incollection{HinkeVervierBrauneretal.2022, author = {Hinke, Christian and Vervier, Luisa and Brauner, Philipp and Schneider, Sebastian and Steuer-Dankert, Linda and Ziefle, Martina and Leicht-Scholten, Carmen}, title = {Capability configuration in next generation manufacturing}, series = {Forecasting next generation manufacturing : digital shadows, human-machine collaboration, and data-driven business models}, booktitle = {Forecasting next generation manufacturing : digital shadows, human-machine collaboration, and data-driven business models}, publisher = {Springer}, address = {Cham}, isbn = {978-3-031-07733-3}, doi = {10.1007/978-3-031-07734-0_6}, pages = {95 -- 106}, year = {2022}, abstract = {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.}, language = {en} } @article{HenriquesJuradoGrieseretal.2020, author = {Henriques, A. and Jurado, B. and Grieser, M. and Denis-Petit, D. and Chiron, T. and Gaudefroy, L. and Glorius, J. and Langer, Christoph and Litvinov, Yu. A. and Mathieu, L. and Meot, V. and Perez-Sanchez, R. and Pibernat, J. and Reifarth, R. and Roig, O. and Thomas, B. and Thomas, B. A. and Thomas, J. C. and Tsekhanovich, I.}, title = {Indirect measurements of neutron cross-secti at heavy-ion storage rings}, series = {Journal of Physics: Conference Series}, volume = {1668}, journal = {Journal of Physics: Conference Series}, number = {Art. 012019}, publisher = {IOP}, address = {Bristol}, doi = {10.1088/1742-6596/1668/1/012019}, year = {2020}, abstract = {Cross sections for neutron-induced reactions of short-lived nuclei are essential for nuclear astrophysics since these reactions in the stars are responsible for the production of most heavy elements in the universe. These reactions are also key in applied domains like energy production and medicine. Nevertheless, neutron-induced cross-section measurements can be extremely challenging or even impossible to perform due to the radioactivity of the targets involved. Indirect measurements through the surrogate-reaction method can help to overcome these difficulties. The surrogate-reaction method relies on the use of an alternative reaction that will lead to the formation of the same excited nucleus as in the neutron-induced reaction of interest. The decay probabilities (for fission, neutron and gamma-ray emission) of the nucleus produced via the surrogate reaction allow one to constrain models and the prediction of the desired neutron cross sections. We propose to perform surrogate reaction measurements in inverse kinematics at heavy-ion storage rings, in particular at the CRYRING@ESR of the GSI/FAIR facility. We present the conceptual idea of the most promising setup to measure for the first time simultaneously the fission, neutron and gamma-ray emission probabilities. The results of the first simulations considering the 238U(d,d') reaction are shown, as well as new technical developments that are being carried out towards this set-up.}, language = {en} } @article{HelsperWiedensohlerWeiseetal.1986, author = {Helsper, Christoph and Wiedensohler, A. and Weise, W. and L{\"u}tkemeier, E.}, title = {Determination of the Bipolar Charge Equilibrium in Pure Gases / Wiedensohler, A. ; Weise, W. ; Helsper, C. ; L{\"u}tkemeier, E.}, 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 = {383 -- 386}, year = {1986}, language = {en} } @article{HelsperWiedensohlerLuetkemeieretal.1986, author = {Helsper, Christoph and Wiedensohler, A. and L{\"u}tkemeier, E. and Feldpausch, M.}, title = {Investigation on the Bipolar Charge Distribution at Various Gas Conditions / Wiedensohler, A.; L{\"u}tkemeier, E.; Feldpausch, M. ; Helsper, C.}, series = {Journal of Aerosol Science. 17 (1986), H. 3}, journal = {Journal of Aerosol Science. 17 (1986), H. 3}, isbn = {0021-8502}, pages = {413 -- 416}, year = {1986}, language = {en} } @article{HelsperNiessnerRoenicke1984, author = {Helsper, Christoph and Nießner, R. and R{\"o}nicke, G.}, title = {Application of a Multistep Condensation Nuclei Counter as a Detector for Particle Surface Composition / Nießner, R.; Helsper, C.; R{\"o}nicke, G.}, series = {Aerosols : science, technology, and industr. applications of airborne particles ; proceedings of the 1. Internat. Aerosol Conference held Sept. 17-21, 1984, Minneapolis, Minn., U.S.A / ed.: Benjamin Y. H. Liu}, journal = {Aerosols : science, technology, and industr. applications of airborne particles ; proceedings of the 1. Internat. Aerosol Conference held Sept. 17-21, 1984, Minneapolis, Minn., U.S.A / ed.: Benjamin Y. H. Liu}, publisher = {Elsevier}, address = {New York [u.a.]}, isbn = {0444009477}, pages = {63 -- 66}, year = {1984}, language = {en} } @article{HelsperNiessner1985, author = {Helsper, Christoph and Nießner, R.}, title = {Application of a Multistep Condensation Nuclei Counter as a Detector for Particle Surface Composition / Nießner, R. ; Helsper, C.}, series = {Journal of Aerosol Science. 16 (1985), H. 3}, journal = {Journal of Aerosol Science. 16 (1985), H. 3}, isbn = {0021-8502}, pages = {201 -- 209}, year = {1985}, language = {en} } @article{HelsperNiessner1985, author = {Helsper, Christoph and Nießner, R.}, title = {On the Influence of the Vapour Substance on the Behaviour of an Expansion Type Condensation Nucleus Counter}, series = {Journal of Aerosol Science. 16 (1985), H. 5}, journal = {Journal of Aerosol Science. 16 (1985), H. 5}, isbn = {0021-8502}, pages = {457 -- 461}, year = {1985}, language = {en} }