@article{GerhardsSkorupaSanderetal.2011,
  author    = {Gerhards, M. and Skorupa, Sascha and Sander, Volker and Belloum, Adam and Vesunin, D. and Benabdelkader, A.},
  title     = {HisT/PLIER : A Two-Fold Provenance Approach for Grid-Enabled Scientific Workflows Using WS-VLAM},
  series = {12th IEEE/ACM International Conference on Grid Computing (GRID), 2011},
  journal   = {12th IEEE/ACM International Conference on Grid Computing (GRID), 2011},
  publisher = {IEEE},
  address   = {New York},
  doi       = {10.1109/Grid.2011.39},
  pages     = {224 -- 225},
  year      = {2011},
  language  = {en}
}
@article{FredebeulKrein2010,
  author    = {Fredebeul-Krein, Markus},
  title     = {Die Abschaffung der Studiengeb{\"u}hren ist der falsche Weg!},
  series = {Der Ordnungspolitische Kommentar},
  journal   = {Der Ordnungspolitische Kommentar},
  year      = {2010},
  language  = {de}
}
@article{EmontsBuyel2023,
  author    = {Emonts, Jessica and Buyel, Johannes Felix},
  title     = {An overview of descriptors to capture protein properties - Tools and perspectives in the context of QSAR modeling},
  series = {Computational and Structural Biotechnology Journal},
  journal   = {Computational and Structural Biotechnology Journal},
  number    = {21},
  publisher = {Research Network of Computational and Structural Biotechnology},
  address   = {Gotenburg},
  issn      = {2001-0370 (online-ressource)},
  doi       = {10.1016/j.csbj.2023.05.022},
  pages     = {3234 -- 3247},
  year      = {2023},
  abstract  = {Proteins are important ingredients in food and feed, they are the active components of many pharmaceutical products, and they are necessary, in the form of enzymes, for the success of many technical processes. However, production can be challenging, especially when using heterologous host cells such as bacteria to express and assemble recombinant mammalian proteins. The manufacturability of proteins can be hindered by low solubility, a tendency to aggregate, or inefficient purification. Tools such as in silico protein engineering and models that predict separation criteria can overcome these issues but usually require the complex shape and surface properties of proteins to be represented by a small number of quantitative numeric values known as descriptors, as similarly used to capture the features of small molecules. Here, we review the current status of protein descriptors, especially for application in quantitative structure activity relationship (QSAR) models. First, we describe the complexity of proteins and the properties that descriptors must accommodate. Then we introduce descriptors of shape and surface properties that quantify the global and local features of proteins. Finally, we highlight the current limitations of protein descriptors and propose strategies for the derivation of novel protein descriptors that are more informative.},
  language  = {en}
}
@article{FredebeulKrein2010,
  author    = {Fredebeul-Krein, Markus},
  title     = {Sollen die Studiengeb{\"u}hren wieder abgeschafft werden?},
  series = {Bildungsgerechtigkeit in der Begabtenf{\"o}rderung. Ein Widerspruch in sich?},
  journal   = {Bildungsgerechtigkeit in der Begabtenf{\"o}rderung. Ein Widerspruch in sich?},
  editor    = {Bartoldus, Beate and John-Ohnesorg, Marei},
  publisher = {Friedrich-Ebert-Stiftung},
  address   = {Berlin},
  isbn      = {978-3-86872-423-3},
  pages     = {124 -- 129},
  year      = {2010},
  abstract  = {In den letzten Jahren haben in Deutschland mehrere Bundesl{\"a}nder Studiengeb{\"u}hren eingef{\"u}hrt. Seitdem wird in der Politik heftig {\"u}ber das F{\"u}r und Wider diskutiert. Von den Gegnern wird h{\"a}ufig das Argument vorgebracht, Studiengeb{\"u}hren seien sozial ungerecht und w{\"u}rden insbesondere einkommensschwache Bev{\"o}lkerungsschichten von einem Studium abhalten. Best{\"a}tigt werden sie von den Zahlen aus Umfragen, denen zufolge {\"u}ber 70 Prozent derjenigen, die sich gegen ein Studium entscheiden, finanzielle Gr{\"u}nde f{\"u}r einen Studienverzicht anf{\"u}hren. Bef{\"u}rworter halten dem entgegen, Studiengeb{\"u}hren seien angesichts knapper {\"o}ffentlicher Kassen unbedingt notwendig, da nur so die Qualit{\"a}t der Lehre aufrechterhalten bzw. verbessert werden k{\"o}nne. Zudem w{\"u}rden Studiengeb{\"u}hren die sozialen Bildungsbarrieren keineswegs erh{\"o}hen, was auch daran erkennbar sei, dass infolge der Studiengeb{\"u}hren die Zahl der Studierenden nicht zur{\"u}ckgegangen ist. Der vorliegende Artikel leistet einen Beitrag zu dieser Debatte, indem er die an einer Hochschule in Nordrhein-Westfalen gesammelten Erfahrungen mit Studiengeb{\"u}hren auswertet},
  language  = {de}
}
@article{HirschfeldLustfeldReisseletal.2010,
  author    = {Hirschfeld, Julian A. and Lustfeld, Hans and Reißel, Martin and Steffen, Bernhard},
  title     = {A novel scheme for precise diagnostics and effective stabilization of currents in a fuel cell stack},
  series = {International Journal of Energy Research},
  volume    = {34},
  journal   = {International Journal of Energy Research},
  number    = {3},
  publisher = {Wiley},
  address   = {London},
  issn      = {0363-907X},
  doi       = {10.1002/er.1662},
  pages     = {293 -- 301},
  year      = {2010},
  abstract  = {A novel scheme for detecting inhomogeneous internal currents in a fuel cell stack is presented. In this paper the scheme is investigated for the case that the flow field plates consist of graphite. Then plates of high conductivity, e.g. aluminium between the flow field plates together with small slits in these plates have three effects: (a) Whenever a local inhomogeneity of the electric current occurs at a particular cell in the stack, this will induce a surface current close to that cell perpendicular to the averaged current. This current can be detected. (b) The plates of high conductivity completely prevent the inhomogeneities from spreading to neighbouring cells. (c) Even at the particular cell the inhomogeneity is suppressed as far as possible. Thus this scheme leads to much better diagnostic possibilities and at the same time reduces electric instabilities to an extent, where they probably become harmless. This scheme will first be explained for a simple model to clarify the idea. However, very precise three dimensional computations using realistic parameters are presented, corroborating the results of the simple model.},
  language  = {en}
}
@article{ScholzLeyDachwaldetal.2010,
  author    = {Scholz, A. and Ley, Wilfried and Dachwald, Bernd and Miau, J. J. and Juang, J. C.},
  title     = {Flight results of the COMPASS-1 picosatellite mission},
  series = {Acta Astronautica},
  volume    = {76},
  journal   = {Acta Astronautica},
  number    = {9-10},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0094-5765},
  doi       = {10.1016/j.actaastro.2010.06.040},
  pages     = {1289 -- 1298},
  year      = {2010},
  abstract  = {The mission of the COMPASS-1 picosatellite is to take pictures of the earth, to validate a space-borne GPS receiver developed by the German Aerospace Center, and to verify the proper operation of the magnetic attitude control system in orbit. The spacecraft was launched on April 28, 2008 from the Indian space port Sriharikota, as part of the PSLV-C9 world record launch that simultaneously brought ten satellites into orbit. The mission operations were carried out from the ground stations in Aachen and Tainan. Arising difficulties in the communication link were overcome with the support of individuals from the amateur radio community. After several months of mission operation, abundant housekeeping and mission data has been commanded, received and analyzed and is presented in this paper.},
  language  = {en}
}
@article{HirschfeldLustfeldReisseletal.2010,
  author    = {Hirschfeld, Julian A. and Lustfeld, Hans and Reißel, Martin and Steffen, Bernhard},
  title     = {Tomographic diagnostics of current distributions in a fuel cell stack},
  series = {International Journal of Energy Research},
  volume    = {34},
  journal   = {International Journal of Energy Research},
  number    = {3},
  publisher = {Wiley},
  address   = {London},
  issn      = {0363-907X},
  doi       = {10.1002/er.1634},
  pages     = {284 -- 292},
  year      = {2010},
  abstract  = {A novel tomographic scheme for analysing the state of any single membrane electrode assembly (MEA) in a stack is suggested. Plates of very high conductivity placed between every fuel cell and slitted in an appropriate manner cause surface currents at well-defined locations of the stack. We show that knowing these surface currents, information about anomalies of the currents in a MEA can be obtained using the methods of tomography. The results are mathematically not unique. However, when assuming plausible defect structures, one can exclude improbable deficiencies by applying a special form of simulated annealing. We present numerical calculations of typical examples demonstrating that the essential defects of the MEA in any single cell of the stack can be detected and their extent can be determined.},
  language  = {en}
}
@article{HeinrichsPietrzykZiemons2003,
  author    = {Heinrichs, U. and Pietrzyk, Uwe and Ziemons, Karl},
  title     = {Design optimization of the PMT-ClearPET prototypes based on simulation studies with GEANT3},
  series = {IEEE Transactions on Nuclear Science},
  volume    = {50},
  journal   = {IEEE Transactions on Nuclear Science},
  number    = {5},
  isbn      = {0018-9499},
  pages     = {1428 -- 1432},
  year      = {2003},
  abstract  = {Within the Crystal Clear Collaboration (CCC), four centers are developing second generation high performance small animal positron emission tomography (PET) scanners for different kinds of animals and medical applications. The first prototypes are photomultiplier tube (PMT)-based systems including depth of interaction (DOI) detection by using a phoswich layer of lutetium oxyorthosilicate (LSO) and lutetium yttrium aluminum perovskite (LuYAP). The aim of these simulation studies is to optimize sensitivity and spatial resolution of given designs, which vary in fields of view (FOVs) caused by different detector configurations (ring/octagon) and sizes. For this purpose the simulation tool GEANT3 (CERN, Geneva, Switzerland) was used.},
  language  = {en}
}
@phdthesis{Emonts2013,
  author    = {Emonts, Jessica},
  title     = {Searching for many defective edges in hypergraphs},
  publisher = {Rheinisch-Westf{\"a}lischen Technischen Hochschule Aachen},
  address   = {Aachen},
  pages     = {VIII, 104 Seiten : Ill.},
  year      = {2013},
  language  = {en}
}
@article{FredebeulKrein2010,
  author    = {Fredebeul-Krein, Markus},
  title     = {Studiengeb{\"u}hren sind sozial gerecht},
  series = {INSM-{\"O}konomenblog},
  journal   = {INSM-{\"O}konomenblog},
  publisher = {INSM},
  address   = {Berlin},
  year      = {2010},
  language  = {de}
}