@inproceedings{ButenwegMeyerFehling2014,
  author    = {Butenweg, Christoph and Meyer, Udo and Fehling, Ekkehard},
  title     = {INSYSME: first activities of the German partners},
  series = {9th International Masonry Conference 2014 in Guimaraes, Portugal, 2014},
  booktitle = {9th International Masonry Conference 2014 in Guimaraes, Portugal, 2014},
  year      = {2014},
  language  = {en}
}
@inproceedings{ButenwegMistler2006,
  author    = {Butenweg, Christoph and Mistler, Michael},
  title     = {Seismic resistance of unreinforced masonry buildings},
  series = {Proceedings of the Eighth International Conference on Computational Structures Technology : [Las Palmas de Cran Canaria, 12-15 September 2006] / ed. by B. H. V. Topping ...},
  booktitle = {Proceedings of the Eighth International Conference on Computational Structures Technology : [Las Palmas de Cran Canaria, 12-15 September 2006] / ed. by B. H. V. Topping ...},
  publisher = {Civil-Comp Press},
  address   = {Stirling},
  organization    = {International Conference on Computational Structures Technology <8, 2006, Las Palmas>},
  isbn      = {1-905088-06-X},
  doi       = {10.4203/ccp.83.9},
  pages     = {Paper 9},
  year      = {2006},
  language  = {en}
}
@inproceedings{ButenwegNorda2013,
  author    = {Butenweg, Christoph and Norda, Hannah},
  title     = {Nonlinear analysis of masonry structures according to Eurocode 8},
  series = {Proceedings - Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics 2013 (VEESD 2013)},
  booktitle = {Proceedings - Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics 2013 (VEESD 2013)},
  editor    = {Adam, Christoph and Heuer, Rudolf and Lenhardt, Wolfgang and Schranz, Christian},
  isbn      = {978-3-902749-04-8},
  year      = {2013},
  language  = {en}
}
@inproceedings{ButenwegRajan2014,
  author    = {Butenweg, Christoph and Rajan, Sreelakshmy},
  title     = {Design and construction techniques of AAC masonry buildings in earthquakes regions},
  series = {10 years Xella research in Building Materials : Symposium on the 4th and 5th of September, Potsdam 2014},
  booktitle = {10 years Xella research in Building Materials : Symposium on the 4th and 5th of September, Potsdam 2014},
  year      = {2014},
  language  = {en}
}
@article{ButenwegRosinHoller2017,
  author    = {Butenweg, Christoph and Rosin, Julia and Holler, Stefan},
  title     = {Analysis of cylindrical granular material silos under seismic excitation},
  series = {Buildings},
  volume    = {7},
  journal   = {Buildings},
  number    = {3},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2075-5309},
  doi       = {10.3390/buildings7030061},
  pages     = {1 -- 12},
  year      = {2017},
  abstract  = {Silos generally work as storage structures between supply and demand for various goods, and their structural safety has long been of interest to the civil engineering profession. This is especially true for dynamically loaded silos, e.g., in case of seismic excitation. Particularly thin-walled cylindrical silos are highly vulnerable to seismic induced pressures, which can cause critical buckling phenomena of the silo shell. The analysis of silos can be carried out in two different ways. In the first, the seismic loading is modeled through statically equivalent loads acting on the shell. Alternatively, a time history analysis might be carried out, in which nonlinear phenomena due to the filling as well as the interaction between the shell and the granular material are taken into account. The paper presents a comparison of these approaches. The model used for the nonlinear time history analysis considers the granular material by means of the intergranular strain approach for hypoplasticity theory. The interaction effects between the granular material and the shell is represented by contact elements. Additionally, soil-structure interaction effects are taken into account.},
  language  = {en}
}
@inproceedings{ButenwegRosinKubalski2013,
  author    = {Butenweg, Christoph and Rosin, Julia and Kubalski, Thomas},
  title     = {Seismic response of conventional and base-isolated liquid storage tanks},
  series = {International Conference on Earthquake Engineering : 29.-31.05.2013, Skopje, Mazedonien},
  booktitle = {International Conference on Earthquake Engineering : 29.-31.05.2013, Skopje, Mazedonien},
  organization    = {International Conference on Earthquake Engineering <2013, Skopje>},
  pages     = {1 -- 8},
  year      = {2013},
  language  = {en}
}
@incollection{ButenwegThierauf1999,
  author    = {Butenweg, Christoph and Thierauf, G.},
  title     = {Automatic design of reinforced concrete structures with parallel computing},
  series = {Innovative computational methods for structural mechanics},
  booktitle = {Innovative computational methods for structural mechanics},
  editor    = {Papadrakakis, M. and Topping, B.H.V.},
  publisher = {Saxe-Coburg Publication},
  address   = {Edinburgh},
  isbn      = {1-874672-05-9},
  doi       = {10.4203/csets.1.14},
  pages     = {305 -- 318},
  year      = {1999},
  abstract  = {A concept for the analysis and optimal design of reinforced concrete structures is described. It is based on a nonlinear optimization algorithm and a finite element program for linear and nonlinear analysis of structures. With the aim of minimal cost design a two stage optimization using efficient gradient algorithm is developed. The optimization problems on global (structural) and local (crosssectional) level are formulated. A parallelization concept for solving the two stage optimization problem in minimal time is presented. Examples are included to illustrate the practical use and the effectively of the parallelization in the area of engineering design.},
  language  = {en}
}
@inproceedings{ButenwegThierauf1997,
  author    = {Butenweg, Christoph and Thierauf, Georg},
  title     = {Optimum cost design of reinforced concrete structures using parallel computing},
  series = {Advances in computational mechanics with parallel and distributed processing : research papers presented at The First Euro-Conference on Parallel and Distributed Computing for Computational Mechanics, held at Lochinver, Scotland, between 26 April and 1 May 1997 / ed. by B. H. V. Topping},
  booktitle = {Advances in computational mechanics with parallel and distributed processing : research papers presented at The First Euro-Conference on Parallel and Distributed Computing for Computational Mechanics, held at Lochinver, Scotland, between 26 April and 1 May 1997 / ed. by B. H. V. Topping},
  publisher = {Saxe-Coburg Publication},
  address   = {Edinburgh},
  organization    = {Euro-Conference on Parallel and Distributed Computing for Computational Mechanics <1, 1997, Lochinver, Scotland>},
  isbn      = {0-948749-47-4},
  pages     = {197 -- 202},
  year      = {1997},
  language  = {en}
}
@inproceedings{ButenwegThierauf1998,
  author    = {Butenweg, Christoph and Thierauf, Georg},
  title     = {Optimum design of reinforced concrete structures},
  series = {Advances in computational structural mechanics : this volume contains a selection of papers presented at The First International Conference on Engineering Computational Technology and The Fourth International Conference on Computational Structures Technology, held in Edinburgh from 18-21 August 1998 / edited by B. H. V. Topping},
  booktitle = {Advances in computational structural mechanics : this volume contains a selection of papers presented at The First International Conference on Engineering Computational Technology and The Fourth International Conference on Computational Structures Technology, held in Edinburgh from 18-21 August 1998 / edited by B. H. V. Topping},
  publisher = {Civil-Comp Press},
  address   = {Edinburgh},
  organization    = {International Conference on Computational Structures Technology <4, 1998, Edinburgh>},
  isbn      = {0-948749-57-1},
  pages     = {447 -- 458},
  year      = {1998},
  language  = {en}
}
@inproceedings{BuxbaumHessRingbeck2001,
  author    = {Buxbaum, Bernd and Hess, Holger and Ringbeck, Thorsten},
  title     = {The photonic mixer device : new perspectives in optical wireless communication},
  series = {International Workshop on Optical MEMS and Integrated Optics : Universit{\"a}t Dortmund, Universit{\"a}tskolleg Bommerholz, 11. \& 12. June 2001},
  booktitle = {International Workshop on Optical MEMS and Integrated Optics : Universit{\"a}t Dortmund, Universit{\"a}tskolleg Bommerholz, 11. \& 12. June 2001},
  editor    = {Voges, Edgar},
  publisher = {Univ.},
  address   = {Dortmund},
  pages     = {(12)1 -- (12)5},
  year      = {2001},
  language  = {en}
}
@inproceedings{BuxbaumSchwarteRingbeck2000,
  author    = {Buxbaum, Bernd and Schwarte, Rudolf and Ringbeck, Thorsten},
  title     = {Synchronization in spread spectrum laser radar systems based on PMD-DLL},
  series = {Laser radar technology and applications V : 26 - 28 April 2000, Orlando, USA. - (SPIE proceedings series ; 4035)},
  booktitle = {Laser radar technology and applications V : 26 - 28 April 2000, Orlando, USA. - (SPIE proceedings series ; 4035)},
  editor    = {Kamerman, Gary W.},
  publisher = {SPIE},
  address   = {Bellingham, Wash.},
  isbn      = {0-8194-3661-5},
  issn      = {0038-7355},
  pages     = {204 -- 216},
  year      = {2000},
  language  = {en}
}
@inproceedings{BuxbaumSchwarteRingbeck1999,
  author    = {Buxbaum, Bernd and Schwarte, Rudolf and Ringbeck, Thorsten},
  title     = {PMD-PLL: receiver structure for incoherent communication and ranging systems},
  series = {Optical wireless communications II / [SPIE Conference on Optical Wireless Communications II], 22 September 1999, Boston, Massachusetts. - (SPIE proceedings series ; 3850)},
  booktitle = {Optical wireless communications II / [SPIE Conference on Optical Wireless Communications II], 22 September 1999, Boston, Massachusetts. - (SPIE proceedings series ; 3850)},
  editor    = {Korevaar, Eric John},
  publisher = {SPIE},
  address   = {Bellingham, Wash.},
  isbn      = {0-8194-3443-4},
  issn      = {0038-7355},
  pages     = {116 -- 130},
  year      = {1999},
  language  = {en}
}
@inproceedings{BuxbaumSchwarteRingbecketal.1998,
  author    = {Buxbaum, Bernd and Schwarte, Rudolf and Ringbeck, Thorsten and [u.a.],},
  title     = {A new approach in optical broadband communication systems : a high integrated optical phase locked loop based on a mixing and correlating sensor, the Photonic Mixer Device (PMD)},
  series = {Proceedings / OPTO 98, Internationaler Kongress und Fachausstellung f{\"u}r Optische Sensorik, Messtechnik und Elektronik, 18. - 20. Mai 1998, Kongresszentrum Erfurt},
  booktitle = {Proceedings / OPTO 98, Internationaler Kongress und Fachausstellung f{\"u}r Optische Sensorik, Messtechnik und Elektronik, 18. - 20. Mai 1998, Kongresszentrum Erfurt},
  publisher = {ACS Organisations GmbH},
  address   = {Wunsdorf},
  pages     = {59 -- 64},
  year      = {1998},
  language  = {en}
}
@inproceedings{BuxbaumSchwarteRingbecketal.2001,
  author    = {Buxbaum, Bernd and Schwarte, Rudolf and Ringbeck, Thorsten and [u.a.],},
  title     = {Wireless LAN based on optical CDMA using a new high-speed correlation receiver (MSM-PMD)},
  series = {Optical wireless communications IV : 21-22 August, 2001, Denver, USA. - (SPIE proceedings series ; 4530)},
  booktitle = {Optical wireless communications IV : 21-22 August, 2001, Denver, USA. - (SPIE proceedings series ; 4530)},
  editor    = {Korevaar, Eric John},
  publisher = {SPIE},
  address   = {Bellingham, Wash.},
  isbn      = {0-8194-4254-2},
  pages     = {168 -- 178},
  year      = {2001},
  language  = {en}
}
@inproceedings{BuxbaumSchwarteRingbecketal.2002,
  author    = {Buxbaum, Bernd and Schwarte, Rudolf and Ringbeck, Thorsten and [u.a.],},
  title     = {MSM-PMD as correlation receiver in a new 3D-ranging system},
  series = {Laser radar ranging and atmospheric lidar techniques III : 17 - 18 September 2001, Toulouse, France. - (SPIE proceedings series ; 4546)},
  booktitle = {Laser radar ranging and atmospheric lidar techniques III : 17 - 18 September 2001, Toulouse, France. - (SPIE proceedings series ; 4546)},
  editor    = {Schreiber, Ulrich},
  publisher = {SPIE},
  address   = {Bellingham, Wash.},
  isbn      = {0-8194-4271-2},
  issn      = {0038-7355},
  pages     = {145 -- 154},
  year      = {2002},
  language  = {en}
}
@inproceedings{BuxbaumSchwarteXuetal.1999,
  author    = {Buxbaum, Bernd and Schwarte, Rudolf and Xu, Zhanping and Ringbeck, Thorsten and [u.a.],},
  title     = {Charge Transfer Simulation in PMD-Structures},
  series = {Sensor 99 : proceedings / 9th Int'l Fair and Conference for Sensors, Transducers \& Systems, May 18 - 20, 1999, Exhibition Centre N{\"u}rnberg/Germany. - Vol. 2},
  booktitle = {Sensor 99 : proceedings / 9th Int'l Fair and Conference for Sensors, Transducers \& Systems, May 18 - 20, 1999, Exhibition Centre N{\"u}rnberg/Germany. - Vol. 2},
  publisher = {AMA Service GmbH},
  address   = {Wunsdorf},
  pages     = {427 -- 432},
  year      = {1999},
  language  = {en}
}
@article{BussEckenWinkelsetal.2000,
  author    = {Buß, G. and Ecken, H. and Winkels, S. and Sch{\"o}ning, Michael Josef and L{\"u}th, H. and Schultze, J. W.},
  title     = {Galvanic modifications of multifunctional silicon-based microelectrode arrays},
  series = {Electrochemical technology applications in electronics : proceedings of the third international symposium / [International Symposium on Electrochemical Technology Applications in Electronics, held during October 20 - 22, 1999, Honolulu, Hawaii]. Electrodeposition Division. Ed.: L. T. Romankiw},
  journal   = {Electrochemical technology applications in electronics : proceedings of the third international symposium / [International Symposium on Electrochemical Technology Applications in Electronics, held during October 20 - 22, 1999, Honolulu, Hawaii]. Electrodeposition Division. Ed.: L. T. Romankiw},
  publisher = {Electrochemical Society},
  address   = {Pennington, NJ},
  isbn      = {1566772575},
  pages     = {209 -- 215},
  year      = {2000},
  language  = {en}
}
@article{BaeckerBegingBisellietal.2009,
  author    = {B{\"a}cker, Matthias and Beging, Stefan and Biselli, Manfred and Poghossian, Arshak and Wang, J. and Zang, Werner and Wagner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {Concept for a solid-state multi-parameter sensor system for cell-culture monitoring},
  series = {Electrochimica Acta. 54 (2009), H. 25 Sp. Iss. SI},
  journal   = {Electrochimica Acta. 54 (2009), H. 25 Sp. Iss. SI},
  publisher = {Elsevier},
  address   = {Amsterdam},
  isbn      = {0013-4686},
  pages     = {6107 -- 6112},
  year      = {2009},
  language  = {en}
}
@article{BaeckerDellePoghossianetal.2011,
  author    = {B{\"a}cker, Matthias and Delle, L. and Poghossian, Arshak and Biselli, Manfred and Zang, Werner and Wagner, P. and Sch{\"o}ning, Michael Josef},
  title     = {Electrochemical sensor array for bioprocess monitoring},
  series = {Electrochimica Acta (2011)},
  volume    = {56},
  journal   = {Electrochimica Acta (2011)},
  number    = {26},
  publisher = {Elsevier},
  address   = {Amsterdam},
  pages     = {9673 -- 9678},
  year      = {2011},
  language  = {en}
}
@inproceedings{BaeckerKochGeigeretal.2016,
  author    = {B{\"a}cker, Matthias and Koch, C. and Geiger, F. and Eber, F. and Gliemann, H. and Poghossian, Arshak and Sch{\"o}ning, Michael Josef},
  title     = {A New Class of Biosensors Based on Tobacco Mosaic Virus and Coat Proteins as Enzyme Nanocarrier},
  series = {Procedia Engineering},
  volume    = {Vol. 168},
  booktitle = {Procedia Engineering},
  issn      = {1877-7058},
  doi       = {10.1016/j.proeng.2016.11.228},
  pages     = {618 -- 621},
  year      = {2016},
  language  = {en}
}
@article{BaeckerKochEibenetal.2017,
  author    = {B{\"a}cker, Matthias and Koch, Claudia and Eiben, Sabine and Geiger, Fania and Eber, Fabian and Gliemann, Hartmut and Poghossian, Arshak and Wege, Christina and Sch{\"o}ning, Michael Josef},
  title     = {Tobacco mosaic virus as enzyme nanocarrier for electrochemical biosensors},
  series = {Sensors and Actuators B: Chemical},
  volume    = {238},
  journal   = {Sensors and Actuators B: Chemical},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0925-4005},
  doi       = {10.1016/j.snb.2016.07.096},
  pages     = {716 -- 722},
  year      = {2017},
  abstract  = {The conjunction of (bio-)chemical recognition elements with nanoscale biological building blocks such as virus particles is considered as a very promising strategy for the creation of biohybrids opening novel opportunities for label-free biosensing. This work presents a new approach for the development of biosensors using tobacco mosaic virus (TMV) nanotubes or coat proteins (CPs) as enzyme nanocarriers. Sensor chips combining an array of Pt electrodes loaded with glucose oxidase (GOD)-modified TMV nanotubes or CP aggregates were used for amperometric detection of glucose as a model system for the first time. The presence of TMV nanotubes or CPs on the sensor surface allows binding of a high amount of precisely positioned enzymes without substantial loss of their activity, and may also ensure accessibility of their active centers for analyte molecules. Specific and efficient immobilization of streptavidin-conjugated GOD ([SA]-GOD) complexes on biotinylated TMV nanotubes or CPs was achieved via bioaffinity binding. These layouts were tested in parallel with glucose sensors with adsorptively immobilized [SA]-GOD, as well as [SA]-GOD crosslinked with glutardialdehyde, and came out to exhibit superior sensor performance. The achieved results underline a great potential of an integration of virus/biomolecule hybrids with electronic transducers for future applications in biosensorics and biochips.},
  language  = {en}
}
@article{BaeckerKramerHucketal.2014,
  author    = {B{\"a}cker, Matthias and Kramer, F. and Huck, Christina and Poghossian, Arshak and Bratov, A. and Abramova, N. and Sch{\"o}ning, Michael Josef},
  title     = {Planar and 3D interdigitated electrodes for biosensing applications: The impact of a dielectric barrier on the sensor properties},
  series = {Physica Status Solidi (A) - Applications and Materials Science},
  volume    = {211},
  journal   = {Physica Status Solidi (A) - Applications and Materials Science},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-396X (E-Journal); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print)},
  doi       = {10.1002/pssa.201330416},
  pages     = {1357 -- 1363},
  year      = {2014},
  abstract  = {Planar and three-dimensional (3D) interdigitated electrodes (IDE) with electrode digits separated by an insulating barrier of different heights were electrochemically characterized and compared in terms of their sensing properties. Due to the impact of the surface resistance, both types of IDE structures display a non-linear behavior in low-ionic strength solutions. The experimental data were fitted to an electrical equivalent circuit and interpreted taking into account the surface-charge-governed properties. The effect of a charged polyelectrolyte layer electrostatically assembled onto the sensor surface on the surface resistance in solutions with different KCl concentration is studied. In case of the same electrode footprint, 3D-IDEs show a larger cell constant and a higher sensitivity to molecular adsorption than that of planar IDEs. The obtained results demonstrate the potential of 3D-IDEs as a new transducer structure for a direct label-free sensing of charged molecules.},
  language  = {en}
}
@article{BaeckerPoghossianAbouzaretal.2010,
  author    = {B{\"a}cker, Matthias and Poghossian, Arshak and Abouzar, Maryam H. and Wenmackers, Sylvia and Janssens, Stoffel D. and Haenen, Ken and Wagner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {Capacitive field-effect (bio-)chemical sensors based on nanocrystalline diamond films},
  series = {Diamond Electronics and Bioelectronics — Fundamentals to Applications III, edited by P. Bergonzo, [u.a.]},
  journal   = {Diamond Electronics and Bioelectronics — Fundamentals to Applications III, edited by P. Bergonzo, [u.a.]},
  pages     = {1 -- 6},
  year      = {2010},
  language  = {en}
}
@article{BaeckerPouyeshmanSchnitzleretal.2011,
  author    = {B{\"a}cker, Matthias and Pouyeshman, S. and Schnitzler, Thomas and Poghossian, Arshak and Wagner, Patrick and Biselli, Manfred and Sch{\"o}ning, Michael Josef},
  title     = {A silicon-based multi-sensor chip for monitoring of fermentation processes},
  series = {Physica status solidi (a) : applications and material science. 208 (2011), H. 6},
  journal   = {Physica status solidi (a) : applications and material science. 208 (2011), H. 6},
  publisher = {Wiley},
  address   = {Weinheim},
  isbn      = {1862-6319},
  pages     = {1364 -- 1369},
  year      = {2011},
  language  = {en}
}
@article{BaeckerRakowskiPoghossianetal.2013,
  author    = {B{\"a}cker, Matthias and Rakowski, D. and Poghossian, Arshak and Biselli, Manfred and Wagner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {Chip-based amperometric enzyme sensor system for monitoring of bioprocesses by flow-injection analysis},
  series = {Journal of Biotechnology},
  volume    = {163},
  journal   = {Journal of Biotechnology},
  number    = {4},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0168-1656},
  doi       = {10.1016/j.jbiotec.2012.03.014},
  pages     = {371 -- 376},
  year      = {2013},
  abstract  = {A microfluidic chip integrating amperometric enzyme sensors for the detection of glucose, glutamate and glutamine in cell-culture fermentation processes has been developed. The enzymes glucose oxidase, glutamate oxidase and glutaminase were immobilized by means of cross-linking with glutaraldehyde on platinum thin-film electrodes integrated within a microfluidic channel. The biosensor chip was coupled to a flow-injection analysis system for electrochemical characterization of the sensors. The sensors have been characterized in terms of sensitivity, linear working range and detection limit. The sensitivity evaluated from the respective peak areas was 1.47, 3.68 and 0.28 μAs/mM for the glucose, glutamate and glutamine sensor, respectively. The calibration curves were linear up to a concentration of 20 mM glucose and glutamine and up to 10 mM for glutamate. The lower detection limit amounted to be 0.05 mM for the glucose and glutamate sensor, respectively, and 0.1 mM for the glutamine sensor. Experiments in cell-culture medium have demonstrated a good correlation between the glutamate, glutamine and glucose concentrations measured with the chip-based biosensors in a differential-mode and the commercially available instrumentation. The obtained results demonstrate the feasibility of the realized microfluidic biosensor chip for monitoring of bioprocesses.},
  language  = {en}
}
@article{BaeckerRaueSchusseretal.2012,
  author    = {B{\"a}cker, Matthias and Raue, Markus and Schusser, Sebastian and Jeitner, C. and Breuer, L. and Wagner, P. and Poghossian, Arshak and F{\"o}rster, Arnold and Mang, Thomas and Sch{\"o}ning, Michael Josef},
  title     = {Microfluidic chip with integrated microvalves based on temperature- and pH-responsive hydrogel thin films},
  series = {Physica Status Solidi (a)},
  volume    = {209},
  journal   = {Physica Status Solidi (a)},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1862-6319},
  doi       = {10.1002/pssa.201100763},
  pages     = {839 -- 845},
  year      = {2012},
  abstract  = {Two types of microvalves based on temperature-responsive poly(N-isopropylacrylamide) (PNIPAAm) and pH-responsive poly(sodium acrylate) (PSA) hydrogel films have been developed and tested. The PNIPAAm and PSA hydrogel films were prepared by means of in situ photopolymerization directly inside the fluidic channel of a microfluidic chip fabricated by combining Si and SU-8 technologies. The swelling/shrinking properties and height changes of the PNIPAAm and PSA films inside the fluidic channel were studied at temperatures of deionized water from 14 to 36 °C and different pH values (pH 3-12) of Titrisol buffer, respectively. Additionally, in separate experiments, the lower critical solution temperature (LCST) of the PNIPAAm hydrogel was investigated by means of a differential scanning calorimetry (DSC) and a surface plasmon resonance (SPR) method. Mass-flow measurements have shown the feasibility of the prepared hydrogel films to work as an on-chip integrated temperature- or pH-responsive microvalve capable to switch the flow channel on/off.},
  language  = {en}
}
@inproceedings{BaeckerSchusserLeinhosetal.2014,
  author    = {B{\"a}cker, Matthias and Schusser, Sebastian and Leinhos, Marcel and Poghossian, Arshak and Sch{\"o}ning, Michael Josef},
  title     = {Sensor system for the monitoring of degradation processes of biodegradable biopolymers},
  series = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  booktitle = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  publisher = {VDE-Verl.},
  address   = {D{\"u}sseldorf},
  organization    = {VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik},
  isbn      = {978-3-8007-3622-5},
  pages     = {1 -- 4},
  year      = {2014},
  language  = {en}
}
@article{BecretGrossenTrillaetal.2007,
  author    = {B{\´e}cret, P. and Grossen, J. and Trilla, J. and Robinson, A. and Bosschaerts, W. and Funke, Harald and Hendrick, P.},
  title     = {Testing and numerical study of a 10 kW hydrogen micro combustor},
  series = {International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications <7, 2007, Freiburg, Breisgau> ; PowerMEMS ; 7},
  journal   = {International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications <7, 2007, Freiburg, Breisgau> ; PowerMEMS ; 7},
  pages     = {367 -- 370},
  year      = {2007},
  language  = {en}
}
@inproceedings{BoehmHellmannsBackesetal.2006,
  author    = {B{\"o}hm, Stefan and Hellmanns, Mark and Backes, Andreas and Dilger, Klaus},
  title     = {Lock-in thermography based NDT of automotive parts},
  series = {Proceedings of the 3rd World Congress on Adhesion and Related Phenomena : WCARP-III, October 15 -18, 2006, Beijing, China},
  booktitle = {Proceedings of the 3rd World Congress on Adhesion and Related Phenomena : WCARP-III, October 15 -18, 2006, Beijing, China},
  publisher = {Beijing Adhesion Society of China},
  address   = {Beijing},
  pages     = {382 -- 384},
  year      = {2006},
  language  = {en}
}
@article{BoehmHellmannsBackesetal.2006,
  author    = {B{\"o}hm, Stefan and Hellmanns, Mark and Backes, Andreas and Dilger, Klaus},
  title     = {Lock-in thermography based NDT of parts for the automotive industry},
  series = {Journal of adhesion and interface},
  volume    = {Vol. 7},
  journal   = {Journal of adhesion and interface},
  number    = {No. 4},
  pages     = {10 -- 12},
  year      = {2006},
  language  = {en}
}
@article{BoehnischBraunMuscarelloetal.2024,
  author    = {B{\"o}hnisch, Nils and Braun, Carsten and Muscarello, Vincenzo and Marzocca, Pier},
  title     = {About the wing and whirl flutter of a slender wing-propeller system},
  series = {Journal of Aircraft},
  journal   = {Journal of Aircraft},
  publisher = {American Institute of Aeronautics and Astronautics},
  issn      = {1533-3868},
  doi       = {10.2514/1.C037542},
  pages     = {1 -- 14},
  year      = {2024},
  abstract  = {Next-generation aircraft designs often incorporate multiple large propellers attached along the wingspan (distributed electric propulsion), leading to highly flexible dynamic systems that can exhibit aeroelastic instabilities. This paper introduces a validated methodology to investigate the aeroelastic instabilities of wing-propeller systems and to understand the dynamic mechanism leading to wing and whirl flutter and transition from one to the other. Factors such as nacelle positions along the wing span and chord and its propulsion system mounting stiffness are considered. Additionally, preliminary design guidelines are proposed for flutter-free wing-propeller systems applicable to novel aircraft designs. The study demonstrates how the critical speed of the wing-propeller systems is influenced by the mounting stiffness and propeller position. Weak mounting stiffnesses result in whirl flutter, while hard mounting stiffnesses lead to wing flutter. For the latter, the position of the propeller along the wing span may change the wing mode shapes and thus the flutter mechanism. Propeller positions closer to the wing tip enhance stability, but pusher configurations are more critical due to the mass distribution behind the elastic axis.},
  language  = {en}
}
@phdthesis{Boerner2013,
  author    = {B{\"o}rner, Sebastian},
  title     = {Optimization and testing of a low NOx hydrogen fuelled gas turbine},
  publisher = {Universit{\´e} Libre de Bruxelles},
  address   = {Bruxelles},
  pages     = {XVI, 144 S.},
  year      = {2013},
  language  = {en}
}
@article{BoernerFunkeHendricketal.2010,
  author    = {B{\"o}rner, Sebastian and Funke, Harald and Hendrick, P. and Recker, E.},
  title     = {Control system modifications for a hydrogen fuelled gas-turbine},
  series = {ISROMAC 13, 13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, HI, US, Apr 4-7, 2010},
  journal   = {ISROMAC 13, 13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, HI, US, Apr 4-7, 2010},
  publisher = {Curran},
  address   = {Red Hook, NY},
  isbn      = {978-1-617-38848-4},
  pages     = {665 -- 670},
  year      = {2010},
  language  = {en}
}
@inproceedings{BoernerFunkeHendricketal.2009,
  author    = {B{\"o}rner, Sebastian and Funke, Harald and Hendrick, P. and Recker, E.},
  title     = {LES of Jets In Cross-Flow and Application to the "Micromix" Hydrogen Combustion},
  series = {XIX International Symposium on Air Breathing Engines 2009 (ISABE 2009) : Proceedings of a meeting held 7-11 September 2009, Montreal, Canada},
  booktitle = {XIX International Symposium on Air Breathing Engines 2009 (ISABE 2009) : Proceedings of a meeting held 7-11 September 2009, Montreal, Canada},
  isbn      = {9781615676064},
  pages     = {1555 -- 1561},
  year      = {2009},
  language  = {en}
}
@inproceedings{BueckingPfaffDirksmeier2018,
  author    = {B{\"u}cking, Henrik and Pfaff, Raphael and Dirksmeier, Roger},
  title     = {Sensor positioning and thermal model for condition monitoring of pressure gas reservoirs in vehicles},
  series = {Proceedings of the Fourth European Conference of the Prognostics and Health Management Society, Utrecht, Netherlands, 2018},
  booktitle = {Proceedings of the Fourth European Conference of the Prognostics and Health Management Society, Utrecht, Netherlands, 2018},
  pages     = {5 Seiten},
  year      = {2018},
  language  = {en}
}
@inproceedings{BuehlerLeandroBungetal.2015,
  author    = {B{\"u}hler, P. and Leandro, J. and Bung, Daniel B. and Lopes, P. and Carvalho, R.},
  title     = {Measuring void fraction of a stepped spillway with non-intrusive methods using different image resolutions},
  series = {2nd International Workshop on Hydraulic Structures : Data Validation : Coimbra, Portugal, 8-9 May 2015},
  booktitle = {2nd International Workshop on Hydraulic Structures : Data Validation : Coimbra, Portugal, 8-9 May 2015},
  organization    = {International Workshop on Hydraulic Structures : Data Validation <2, 2015, Coimbra>},
  pages     = {1 -- 8},
  year      = {2015},
  language  = {en}
}
@article{BuehlerChristenKowalskietal.2011,
  author    = {B{\"u}hler, Yves and Christen, Marc and Kowalski, Julia and Bartelt, Perry},
  title     = {Sensitivity of snow avalanche simulations to digital elevation model quality and resolution},
  series = {Annals of Glaciology},
  volume    = {52},
  journal   = {Annals of Glaciology},
  number    = {58},
  publisher = {Cambridge University Press},
  address   = {Cambridge},
  isbn      = {1727-5644},
  pages     = {72 -- 80},
  year      = {2011},
  abstract  = {Digital elevation models (DEMs), represent the three-dimensional terrain and are the basic input for numerical snow avalanche dynamics simulations. DEMs can be acquired using topographic maps or remote-sensing technologies, such as photogrammetry or lidar. Depending on the acquisition technique, different spatial resolutions and qualities are achieved. However, there is a lack of studies that investigate the sensitivity of snow avalanche simulation algorithms to the quality and resolution of DEMs. Here, we perform calculations using the numerical avalance dynamics model RAMMS, varying the quality and spatial resolution of the underlying DEMs, while holding the simulation parameters constant. We study both channelized and open-terrain avalanche tracks with variable roughness. To quantify the variance of these simulations, we use well-documented large-scale avalanche events from Davos, Switzerland (winter 2007/08), and from our large-scale avalanche test site, Valĺee de la Sionne (winter 2005/06). We find that the DEM resolution and quality is critical for modeled flow paths, run-out distances, deposits, velocities and impact pressures. Although a spatial resolution of ~25 m is sufficient for large-scale avalanche modeling, the DEM datasets must be checked carefully for anomalies and artifacts before using them for dynamics calculations.},
  language  = {en}
}
@inproceedings{BuesgenKloeserKohletal.2022,
  author    = {B{\"u}sgen, Andr{\´e} and Kl{\"o}ser, Lars and Kohl, Philipp and Schmidts, Oliver and Kraft, Bodo and Z{\"u}ndorf, Albert},
  title     = {Exploratory analysis of chat-based black market profiles with natural language processing},
  series = {Proceedings of the 11th International Conference on Data Science, Technology and Applications},
  booktitle = {Proceedings of the 11th International Conference on Data Science, Technology and Applications},
  isbn      = {978-989-758-583-8},
  issn      = {2184-285X},
  doi       = {10.5220/0011271400003269},
  pages     = {83 -- 94},
  year      = {2022},
  abstract  = {Messenger apps like WhatsApp or Telegram are an integral part of daily communication. Besides the various positive effects, those services extend the operating range of criminals. Open trading groups with many thousand participants emerged on Telegram. Law enforcement agencies monitor suspicious users in such chat rooms. This research shows that text analysis, based on natural language processing, facilitates this through a meaningful domain overview and detailed investigations. We crawled a corpus from such self-proclaimed black markets and annotated five attribute types products, money, payment methods, user names, and locations. Based on each message a user sends, we extract and group these attributes to build profiles. Then, we build features to cluster the profiles. Pretrained word vectors yield better unsupervised clustering results than current state-of-the-art transformer models. The result is a semantically meaningful high-level overview of the user landscape of black market chatrooms. Additionally, the extracted structured information serves as a foundation for further data exploration, for example, the most active users or preferred payment methods.},
  language  = {en}
}
@inproceedings{BuesgenKloeserKohletal.2023,
  author    = {B{\"u}sgen, Andr{\´e} and Kl{\"o}ser, Lars and Kohl, Philipp and Schmidts, Oliver and Kraft, Bodo and Z{\"u}ndorf, Albert},
  title     = {From cracked accounts to fake IDs: user profiling on German telegram black market channels},
  series = {Data Management Technologies and Applications},
  booktitle = {Data Management Technologies and Applications},
  editor    = {Cuzzocrea, Alfredo and Gusikhin, Oleg and Hammoudi, Slimane and Quix, Christoph},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-031-37889-8 (Print)},
  doi       = {10.1007/978-3-031-37890-4_9},
  pages     = {176 -- 202},
  year      = {2023},
  abstract  = {Messenger apps like WhatsApp and Telegram are frequently used for everyday communication, but they can also be utilized as a platform for illegal activity. Telegram allows public groups with up to 200.000 participants. Criminals use these public groups for trading illegal commodities and services, which becomes a concern for law enforcement agencies, who manually monitor suspicious activity in these chat rooms. This research demonstrates how natural language processing (NLP) can assist in analyzing these chat rooms, providing an explorative overview of the domain and facilitating purposeful analyses of user behavior. We provide a publicly available corpus of annotated text messages with entities and relations from four self-proclaimed black market chat rooms. Our pipeline approach aggregates the extracted product attributes from user messages to profiles and uses these with their sold products as features for clustering. The extracted structured information is the foundation for further data exploration, such as identifying the top vendors or fine-granular price analyses. Our evaluation shows that pretrained word vectors perform better for unsupervised clustering than state-of-the-art transformer models, while the latter is still superior for sequence labeling.},
  language  = {en}
}
@inproceedings{CacciatoreButenweg2020,
  author    = {Cacciatore, Pamela and Butenweg, Christoph},
  title     = {Seismic safety of cylindrical granular material steel silos under seismic loading},
  series = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  booktitle = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  isbn      = {978-3-86359-729-0},
  pages     = {231 -- 244},
  year      = {2020},
  language  = {en}
}
@incollection{CalliessKrollLudwigs2015,
  author    = {Calliess, Gralf-Peter and Kroll-Ludwigs, Kathrin},
  title     = {Art. 6 Rome III-Regulation (consent and material validity)},
  series = {Rome Regulations : commentary},
  booktitle = {Rome Regulations : commentary},
  publisher = {Wolters Kluwer},
  isbn      = {9789041147547},
  year      = {2015},
  language  = {en}
}
@inproceedings{CaminosSchmitzAttietal.2022,
  author    = {Caminos, Ricardo Alexander Chico and Schmitz, Pascal and Atti, Vikrama and Mahdi, Zahra and Teixeira Boura, Cristiano Jos{\´e} and Sattler, Johannes Christoph and Herrmann, Ulf and Hilger, Patrick and Dieckmann, Simon},
  title     = {Development of a micro heliostat and optical qualification assessment with a 3D laser scanning method},
  series = {SOLARPACES 2020},
  booktitle = {SOLARPACES 2020},
  number    = {2445 / 1},
  publisher = {AIP conference proceedings / American Institute of Physics},
  address   = {Melville, NY},
  isbn      = {978-0-7354-4195-8},
  issn      = {1551-7616 (online)},
  doi       = {10.1063/5.0086262},
  pages     = {8 Seiten},
  year      = {2022},
  abstract  = {The Solar-Institut J{\"u}lich (SIJ) and the companies Hilger GmbH and Heliokon GmbH from Germany have developed a small-scale cost-effective heliostat, called "micro heliostat". Micro heliostats can be deployed in small-scale concentrated solar power (CSP) plants to concentrate the sun's radiation for electricity generation, space or domestic water heating or industrial process heat. In contrast to conventional heliostats, the special feature of a micro heliostat is that it consists of dozens of parallel-moving, interconnected, rotatable mirror facets. The mirror facets array is fixed inside a box-shaped module and is protected from weathering and wind forces by a transparent glass cover. The choice of the building materials for the box, tracking mechanism and mirrors is largely dependent on the selected production process and the intended application of the micro heliostat. Special attention was paid to the material of the tracking mechanism as this has a direct influence on the accuracy of the micro heliostat. The choice of materials for the mirror support structure and the tracking mechanism is made in favor of plastic molded parts. A qualification assessment method has been developed by the SIJ in which a 3D laser scanner is used in combination with a coordinate measuring machine (CMM). For the validation of this assessment method, a single mirror facet was scanned and the slope deviation was computed.},
  language  = {en}
}
@article{CampenKowalskiLyonsetal.2019,
  author    = {Campen, R. and Kowalski, Julia and Lyons, W.B. and Tulaczyk, S. and Dachwald, Bernd and Pettit, E. and Welch, K. A. and Mikucki, J.A.},
  title     = {Microbial diversity of an Antarctic subglacial community and high-resolution replicate sampling inform hydrological connectivity in a polar desert},
  series = {Environmental Microbiology},
  journal   = {Environmental Microbiology},
  number    = {accepted article},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1462-2920},
  doi       = {10.1111/1462-2920.14607},
  year      = {2019},
  language  = {en}
}
@inproceedings{CapitainHeringTippkoetteretal.2016,
  author    = {Capitain, C. and Hering, T. and Tippk{\"o}tter, Nils and Ulber, R.},
  title     = {Enzymatic polymerization of lignin model compounds and solubilized lignin in an aqueous ethanol extract},
  series = {New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany},
  booktitle = {New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany},
  publisher = {DECHEMA},
  address   = {Frankfurt am Main},
  pages     = {151 -- 152},
  year      = {2016},
  language  = {en}
}
@article{CapitainRossJonesMoehringetal.2020,
  author    = {Capitain, Charlotte and Ross-Jones, Jesse and M{\"o}hring, Sophie and Tippk{\"o}tter, Nils},
  title     = {Differential scanning calorimetry for quantification of polymer biodegradability in compost},
  series = {International Biodeterioration \& Biodegradation},
  volume    = {149},
  journal   = {International Biodeterioration \& Biodegradation},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0964-8305},
  doi       = {10.1016/j.ibiod.2020.104914},
  pages     = {In Press, Article number 104914},
  year      = {2020},
  abstract  = {The objective of this study is the establishment of a differential scanning calorimetry (DSC) based method for online analysis of the biodegradation of polymers in complex environments. Structural changes during biodegradation, such as an increase in brittleness or crystallinity, can be detected by carefully observing characteristic changes in DSC profiles. Until now, DSC profiles have not been used to draw quantitative conclusions about biodegradation. A new method is presented for quantifying the biodegradation using DSC data, whereby the results were validated using two reference methods. The proposed method is applied to evaluate the biodegradation of three polymeric biomaterials: polyhydroxybutyrate (PHB), cellulose acetate (CA) and Organosolv lignin. The method is suitable for the precise quantification of the biodegradability of PHB. For CA and lignin, conclusions regarding their biodegradation can be drawn with lower resolutions. The proposed method is also able to quantify the biodegradation of blends or composite materials, which differentiates it from commonly used degradation detection methods.},
  language  = {en}
}
@article{CapitainWagnerHummeletal.2021,
  author    = {Capitain, Charlotte and Wagner, Sebastian and Hummel, Joana and Tippk{\"o}tter, Nils},
  title     = {Investigation of C-N Formation Between Catechols and Chitosan for the Formation of a Strong, Novel Adhesive Mimicking Mussel Adhesion},
  series = {Waste and Biomass Valorization},
  volume    = {12},
  journal   = {Waste and Biomass Valorization},
  publisher = {Springer Nature},
  address   = {Cham},
  issn      = {1877-265X},
  doi       = {10.1007/s12649-020-01110-5},
  pages     = {1761 -- 1779},
  year      = {2021},
  language  = {en}
}
@article{CapriMorsianiSantoroetal.2019,
  author    = {Capri, Miriam and Morsiani, Cristina and Santoro, Aurelia and Moriggi, Manuela and Conte, Maria and Martucci, Morena and Bellavista, Elena and Fabbri, Cristina and Giampieri, Enrico and Albracht, Kirsten and Fl{\"u}ck, Martin and Ruoss, Severin and Brocca, Lorenza and Canepari, Monica and Longa, Emanuela and Giulio, Irene Di and Bottinelli, Roberto and Cerretelli, Paolo and Salvioli, Stefano and Gelfi, Cecilia and Franceschi, Claudio and Narici, Marco and Rittweger, J{\"o}rn},
  title     = {Recovery from 6-month spaceflight at the International Space Station: muscle-related stress into a proinflammatory setting},
  series = {The FASEB journal : official publication of the Federation of American Societies for Experimental Biology},
  volume    = {33},
  journal   = {The FASEB journal : official publication of the Federation of American Societies for Experimental Biology},
  number    = {4},
  doi       = {10.1096/fj.201801625R},
  pages     = {5168 -- 5180},
  year      = {2019},
  language  = {en}
}
@inproceedings{CarzanaDachwaldNoomen2017,
  author    = {Carzana, Livio and Dachwald, Bernd and Noomen, Ron},
  title     = {Model and trajectory optimization for an ideal laser-enhanced solar sail},
  series = {68th International Astronautical Congress},
  booktitle = {68th International Astronautical Congress},
  year      = {2017},
  abstract  = {A laser-enhanced solar sail is a solar sail that is not solely propelled by solar radiation but additionally by a laser beam that illuminates the sail. This way, the propulsive acceleration of the sail results from the combined action of the solar and the laser radiation pressure onto the sail. The potential source of the laser beam is a laser satellite that coverts solar power (in the inner solar system) or nuclear power (in the outer solar system) into laser power. Such a laser satellite (or many of them) can orbit anywhere in the solar system and its optimal orbit (or their optimal orbits) for a given mission is a subject for future research. This contribution provides the model for an ideal laser-enhanced solar sail and investigates how a laser can enhance the thrusting capability of such a sail. The term "ideal" means that the solar sail is assumed to be perfectly reflecting and that the laser beam is assumed to have a constant areal power density over the whole sail area. Since a laser beam has a limited divergence, it can provide radiation pressure at much larger solar distances and increase the radiation pressure force into the desired direction. Therefore, laser-enhanced solar sails may make missions feasible, that would otherwise have prohibitively long flight times, e.g. rendezvous missions in the outer solar system. This contribution will also analyze exemplary mission scenarios and present optimial trajectories without laying too much emphasis on the design and operations of the laser satellites. If the mission studies conclude that laser-enhanced solar sails would have advantages with respect to "traditional" solar sails, a detailed study of the laser satellites and the whole system architecture would be the second next step},
  language  = {en}
}
@article{CehreliAkpinarTemizArtmannetal.2015,
  author    = {Cehreli, Ruksan and Akpinar, Hale and Temiz Artmann, Ayseg{\"u}l and Sagol, Ozgul},
  title     = {Effects of Glutamine and Omega-3 Fatty Acids on Erythrocyte Deformability and Oxidative Damage in Rat Model of Enterocolitis},
  series = {Gastroenterology Research},
  volume    = {8},
  journal   = {Gastroenterology Research},
  number    = {5},
  issn      = {1918-2813},
  doi       = {10.14740/gr683w},
  pages     = {265 -- 273},
  year      = {2015},
  language  = {en}
}
@article{CesariRennekampffVinterstenetal.2004,
  author    = {Cesari, Francesca and Rennekampff, Verena and Vintersten, Kristina and Vuong, Lam Giang and Seibler, Jost and Bode, J{\"u}rgen and Wiebel, Franziska F. and Nordheim, Alfred},
  title     = {Elk-1 knock-out mice engineered by Flp recombinase-mediated cassette exchange},
  series = {Genesis : The Journal of Genetics and Development},
  volume    = {38},
  journal   = {Genesis : The Journal of Genetics and Development},
  number    = {2},
  issn      = {1526-968X},
  doi       = {10.1002/gene.20003},
  pages     = {87 -- 92},
  year      = {2004},
  language  = {en}
}
@inproceedings{ChaiybounTrauteKiesewetteretal.2006,
  author    = {Chaiyboun, Ali and Traute, R{\"u}diger and Kiesewetter, Olaf and Ahlers, Simon and M{\"u}ller, Gerhard and Doll, Theodor},
  title     = {Modular analytical multicomponent analysis in gas sensor arrays},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1358},
  year      = {2006},
  abstract  = {A multi-sensor system is a chemical sensor system which quantitatively and qualitatively records gases with a combination of cross-sensitive gas sensor arrays and pattern recognition software. This paper addresses the issue of data analysis for identification of gases in a gas sensor array. We introduce a software tool for gas sensor array configuration and simulation. It concerns thereby about a modular software package for the acquisition of data of different sensors. A signal evaluation algorithm referred to as matrix method was used specifically for the software tool. This matrix method computes the gas concentrations from the signals of a sensor array. The software tool was used for the simulation of an array of five sensors to determine gas concentration of CH4, NH3, H2, CO and C2H5OH. The results of the present simulated sensor array indicate that the software tool is capable of the following: (a) identify a gas independently of its concentration; (b) estimate the concentration of the gas, even if the system was not previously exposed to this concentration; (c) tell when a gas concentration exceeds a certain value. A gas sensor data base was build for the configuration of the software. With the data base one can create, generate and manage scenarios and source files for the simulation. With the gas sensor data base and the simulation software an on-line Web-based version was developed, with which the user can configure and simulate sensor arrays on-line.},
  subject      = {Biosensor},
  language  = {en}
}
@inproceedings{ChajanSchulteTiggesRekeetal.2021,
  author    = {Chajan, Eduard and Schulte-Tigges, Joschua and Reke, Michael and Ferrein, Alexander and Matheis, Dominik and Walter, Thomas},
  title     = {GPU based model-predictive path control for self-driving vehicles},
  series = {IEEE Intelligent Vehicles Symposium (IV)},
  booktitle = {IEEE Intelligent Vehicles Symposium (IV)},
  publisher = {IEEE},
  isbn      = {978-1-7281-5394-0},
  doi       = {10.1109/IV48863.2021.9575619},
  pages     = {1243 -- 1248},
  year      = {2021},
  abstract  = {One central challenge for self-driving cars is a proper path-planning. Once a trajectory has been found, the next challenge is to accurately and safely follow the precalculated path. The model-predictive controller (MPC) is a common approach for the lateral control of autonomous vehicles. The MPC uses a vehicle dynamics model to predict the future states of the vehicle for a given prediction horizon. However, in order to achieve real-time path control, the computational load is usually large, which leads to short prediction horizons. To deal with the computational load, the control algorithm can be parallelized on the graphics processing unit (GPU). In contrast to the widely used stochastic methods, in this paper we propose a deterministic approach based on grid search. Our approach focuses on systematically discovering the search area with different levels of granularity. To achieve this, we split the optimization algorithm into multiple iterations. The best sequence of each iteration is then used as an initial solution to the next iteration. The granularity increases, resulting in smooth and predictable steering angle sequences. We present a novel GPU-based algorithm and show its accuracy and realtime abilities with a number of real-world experiments.},
  language  = {en}
}
@incollection{ChansonBungMatos2015,
  author    = {Chanson, Hubert and Bung, Daniel B. and Matos, J.},
  title     = {Stepped spillways and cascades},
  series = {Energy dissipation in hydraulic structures / Hubert Chanson (ed.)},
  booktitle = {Energy dissipation in hydraulic structures / Hubert Chanson (ed.)},
  publisher = {CRC Press},
  address   = {Boca Raton, Fla. [u.a.]},
  isbn      = {978-1-138-02755-8 (print) ; 978-1-315-68029-3 (e-Book)},
  pages     = {45 -- 64},
  year      = {2015},
  language  = {en}
}
@inproceedings{ChavezBermudezCruzCastanonRuchayetal.2022,
  author    = {Chavez Bermudez, Victor Francisco and Cruz Castanon, Victor Fernando and Ruchay, Marco and Wollert, J{\"o}rg},
  title     = {Rapid prototyping framework for automation applications based on IO-Link},
  series = {Tagungsband AALE 2022},
  booktitle = {Tagungsband AALE 2022},
  editor    = {Leipzig, Hochschule f{\"u}r Technik, Wirtschaft und Kultur},
  address   = {Leipzig},
  isbn      = {978-3-910103-00-9},
  doi       = {10.33968/2022.28},
  pages     = {8 Seiten},
  year      = {2022},
  abstract  = {The development of protype applications with sensors and actuators in the automation industry requires tools that are independent of manufacturer, and are flexible enough to be modified or extended for any specific requirements. Currently, developing prototypes with industrial sensors and actuators is not straightforward. First of all, the exchange of information depends on the industrial protocol that these devices have. Second, a specific configuration and installation is done based on the hardware that is used, such as automation controllers or industrial gateways. This means that the development for a specific industrial protocol, highly depends on the hardware and the software that vendors provide. In this work we propose a rapid-prototyping framework based on Arduino to solve this problem. For this project we have focused to work with the IO-Link protocol. The framework consists of an Arduino shield that acts as the physical layer, and a software that implements the IO-Link Master protocol. The main advantage of such framework is that an application with industrial devices can be rapid-prototyped with ease as its vendor independent, open-source and can be ported easily to other Arduino compatible boards. In comparison, a typical approach requires proprietary hardware, is not easy to port to another system and is closed-source.},
  language  = {en}
}
@inproceedings{ChavezBermudezWollert2022,
  author    = {Chavez Bermudez, Victor Francisco and Wollert, J{\"o}rg},
  title     = {10BASE-T1L industry 4.0 smart switch for field devices based on IO-Link},
  series = {2022 IEEE 18th International Conference on Factory Communication Systems (WFCS)},
  booktitle = {2022 IEEE 18th International Conference on Factory Communication Systems (WFCS)},
  publisher = {IEEE},
  isbn      = {978-1-6654-1086-1},
  doi       = {10.1109/WFCS53837.2022.9779176},
  pages     = {4 Seiten},
  year      = {2022},
  abstract  = {The recent amendment to the Ethernet physical layer known as the IEEE 802.3cg specification, allows to connect devices up to a distance of one kilometer and delivers a maximum of 60 watts of power over a twisted pair of wires. This new standard, also known as 10BASE-TIL, promises to overcome the limits of current physical layers used for field devices and bring them a step closer to Ethernet-based applications. The main advantage of 10BASE- TIL is that it can deliver power and data over the same line over a long distance, where traditional solutions (e.g., CAN, IO-Link, HART) fall short and cannot match its 10 Mbps bandwidth. Due to its recentness, IOBASE- TIL is still not integrated into field devices and it has been less than two years since silicon manufacturers released the first Ethernet-PHY chips. In this paper, we present a design proposal on how field devices could be integrated into a IOBASE-TIL smart switch that allows plug-and-play connectivity for sensors and actuators and is compliant with the Industry 4.0 vision. Instead of presenting a new field-level protocol for this work, we have decided to adopt the IO-Link specification which already includes a plug-and-play approach with features such as diagnosis and device configuration. The main objective of this work is to explore how field devices could be integrated into 10BASE-TIL Ethernet, its adaption with a well-known protocol, and its integration with Industry 4.0 technologies.},
  language  = {en}
}
@inproceedings{ChavezBermudezWollert2019,
  author    = {Chavez Bermudez, Victor Francisco and Wollert, J{\"o}rg},
  title     = {Gateway for Automation Controllers and Cloud based Voice Recognition Services},
  series = {KommA, 10. Jahreskolloquium Kommunikation in der Automation},
  booktitle = {KommA, 10. Jahreskolloquium Kommunikation in der Automation},
  publisher = {Institut f{\"u}r Automation und Kommunikation},
  address   = {Magdeburg},
  organization    = {KommA, 2019, Jahreskolloquium Kommunikation in der Automation, 10., Lemgo, DE, 2019-11-20 - 2019-11-21},
  isbn      = {978-3-944722-85-6},
  pages     = {1 -- 8},
  year      = {2019},
  language  = {en}
}
@inproceedings{ChavezBermudezWollert2020,
  author    = {Chavez Bermudez, Victor Francisco and Wollert, J{\"o}rg},
  title     = {Arduino based Framework for Rapid Application Development of a Generic IO-Link interface},
  series = {Kommunikation und Bildverarbeitung in der Automation},
  booktitle = {Kommunikation und Bildverarbeitung in der Automation},
  publisher = {Springer Vieweg},
  address   = {Berlin},
  isbn      = {978-3-662-59895-5},
  doi       = {10.1007/978-3-662-59895-5_2},
  pages     = {21 -- 33},
  year      = {2020},
  abstract  = {The implementation of IO-Link in the automation industry has increased over the years. Its main advantage is it offers a digital point-to-point plugand-play interface for any type of device or application. This simplifies the communication between devices and increases productivity with its different features like self-parametrization and maintenance. However, its complete potential is not always used. The aim of this paper is to create an Arduino based framework for the development of generic IO-Link devices and increase its implementation for rapid prototyping. By generating the IO device description file (IODD) from a graphical user interface, and further customizable options for the device application, the end-user can intuitively develop generic IO-Link devices. The peculiarity of this framework relies on its simplicity and abstraction which allows to implement any sensor functionality and virtually connect any type of device to an IO-Link master. This work consists of the general overview of the framework, the technical background of its development and a proof of concept which demonstrates the workflow for its implementation.},
  language  = {en}
}
@article{CheenakulaGriebelMontagetal.2023,
  author    = {Cheenakula, Dheeraja and Griebel, Kai and Montag, David and Gr{\"o}mping, Markus},
  title     = {Concept development of a mainstream deammonification and comparison with conventional process in terms of energy, performance and economical construction perspectives},
  series = {Frontiers in Microbiology},
  volume    = {14},
  journal   = {Frontiers in Microbiology},
  number    = {11155235},
  editor    = {Huang, Xiaowu},
  publisher = {Frontiers},
  issn      = {1664-302X},
  doi       = {10.3389/fmicb.2023.1155235},
  pages     = {1 -- 15},
  year      = {2023},
  abstract  = {Deammonification for nitrogen removal in municipal wastewater in temperate and cold climate zones is currently limited to the side stream of municipal wastewater treatment plants (MWWTP). This study developed a conceptual model of a mainstream deammonification plant, designed for 30,000 P.E., considering possible solutions corresponding to the challenging mainstream conditions in Germany. In addition, the energy-saving potential, nitrogen elimination performance and construction-related costs of mainstream deammonification were compared to a conventional plant model, having a single-stage activated sludge process with upstream denitrification. The results revealed that an additional treatment step by combining chemical precipitation and ultra-fine screening is advantageous prior the mainstream deammonification. Hereby chemical oxygen demand (COD) can be reduced by 80\% so that the COD:N ratio can be reduced from 12 to 2.5. Laboratory experiments testing mainstream conditions of temperature (8-20°C), pH (6-9) and COD:N ratio (1-6) showed an achievable volumetric nitrogen removal rate (VNRR) of at least 50 gN/(m3∙d) for various deammonifying sludges from side stream deammonification systems in the state of North Rhine-Westphalia, Germany, where m3 denotes reactor volume. Assuming a retained Norganic content of 0.0035 kgNorg./(P.E.∙d) from the daily loads of N at carbon removal stage and a VNRR of 50 gN/(m3∙d) under mainstream conditions, a resident-specific reactor volume of 0.115 m3/(P.E.) is required for mainstream deammonification. This is in the same order of magnitude as the conventional activated sludge process, i.e., 0.173 m3/(P.E.) for an MWWTP of size class of 4. The conventional plant model yielded a total specific electricity demand of 35 kWh/(P.E.∙a) for the operation of the whole MWWTP and an energy recovery potential of 15.8 kWh/(P.E.∙a) through anaerobic digestion. In contrast, the developed mainstream deammonification model plant would require only a 21.5 kWh/(P.E.∙a) energy demand and result in 24 kWh/(P.E.∙a) energy recovery potential, enabling the mainstream deammonification model plant to be self-sufficient. The retrofitting costs for the implementation of mainstream deammonification in existing conventional MWWTPs are nearly negligible as the existing units like activated sludge reactors, aerators and monitoring technology are reusable. However, the mainstream deammonification must meet the performance requirement of VNRR of about 50 gN/(m3∙d) in this case.},
  language  = {en}
}
@article{CheenakulaHoffstadtKrafftetal.2022,
  author    = {Cheenakula, Dheeraja and Hoffstadt, Kevin and Krafft, Simone and Reinecke, Diana and Klose, Holger and Kuperjans, Isabel and Gr{\"o}mping, Markus},
  title     = {Anaerobic digestion of algal-bacterial biomass of an Algal Turf Scrubber system},
  series = {Biomass Conversion and Biorefinery},
  volume    = {13},
  journal   = {Biomass Conversion and Biorefinery},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {2190-6823},
  doi       = {10.1007/s13399-022-03236-z},
  pages     = {15 Seiten},
  year      = {2022},
  abstract  = {This study investigated the anaerobic digestion of an algal-bacterial biofilm grown in artificial wastewater in an Algal Turf Scrubber (ATS). The ATS system was located in a greenhouse (50°54′19ʺN, 6°24′55ʺE, Germany) and was exposed to seasonal conditions during the experiment period. The methane (CH4) potential of untreated algal-bacterial biofilm (UAB) and thermally pretreated biofilm (PAB) using different microbial inocula was determined by anaerobic batch fermentation. Methane productivity of UAB differed significantly between microbial inocula of digested wastepaper, a mixture of manure and maize silage, anaerobic sewage sludge, and percolated green waste. UAB using sewage sludge as inoculum showed the highest methane productivity. The share of methane in biogas was dependent on inoculum. Using PAB, a strong positive impact on methane productivity was identified for the digested wastepaper (116.4\%) and a mixture of manure and maize silage (107.4\%) inocula. By contrast, the methane yield was significantly reduced for the digested anaerobic sewage sludge (50.6\%) and percolated green waste (43.5\%) inocula. To further evaluate the potential of algal-bacterial biofilm for biogas production in wastewater treatment and biogas plants in a circular bioeconomy, scale-up calculations were conducted. It was found that a 0.116 km2 ATS would be required in an average municipal wastewater treatment plant which can be viewed as problematic in terms of space consumption. However, a substantial amount of energy surplus (4.7-12.5 MWh a-1) can be gained through the addition of algal-bacterial biomass to the anaerobic digester of a municipal wastewater treatment plant. Wastewater treatment and subsequent energy production through algae show dominancy over conventional technologies.},
  language  = {en}
}
@article{CheenakulaPaulsenOttetal.2023,
  author    = {Cheenakula, Dheeraja and Paulsen, Svea and Ott, Fabian and Gr{\"o}mping, Markus},
  title     = {Operational window of a deammonifying sludge for mainstream application in a municipal wastewater treatment plant},
  series = {Water and Environment Journal},
  journal   = {Water and Environment Journal},
  number    = {Early View},
  publisher = {Wiley},
  address   = {Chichester},
  issn      = {1747-6593},
  doi       = {10.1111/wej.12898},
  pages     = {1 -- 12},
  year      = {2023},
  abstract  = {The present work aimed to study the mainstream feasibility of the deammonifying sludge of side stream of municipal wastewater treatment plant (MWWTP) in Kaster, Germany. For this purpose, the deammonifying sludge available at the side stream was investigated for nitrogen (N) removal with respect to the operational factors temperature (15-30°C), pH value (6.0-8.0) and chemical oxygen demand (COD)/N ratio (≤1.5-6.0). The highest and lowest N-removal rates of 0.13 and 0.045 kg/(m³ d) are achieved at 30 and 15°C, respectively. Different conditions of pH and COD/N ratios in the SBRs of Partial nitritation/anammox (PN/A) significantly influenced both the metabolic processes and associated N-removal rates. The scientific insights gained from the current work signifies the possibility of mainstream PN/A at WWTPs. The current study forms a solid basis of operational window for the upcoming semi-technical trails to be conducted prior to the full-scale mainstream PN/A at WWTP Kaster and WWTPs globally.},
  language  = {en}
}
@article{ChenSchoembergKraffetal.2016,
  author    = {Chen, Bixia and Schoemberg, Tobias and Kraff, Oliver and Dammann, Philipp and Bitz, Andreas and Schlamann, Marc and Quick, Harald H. and Ladd, Mark E. and Sure, Ulrich and Wrede, Karsten H.},
  title     = {Cranial fixation plates in cerebral magnetic resonance imaging: a 3 and 7 Tesla in vivo image quality study},
  series = {Magnetic Resonance Materials in Physics, Biology and Medicine},
  volume    = {29},
  journal   = {Magnetic Resonance Materials in Physics, Biology and Medicine},
  number    = {3},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1352-8661},
  doi       = {10.1007/s10334-016-0548-1},
  pages     = {389 -- 398},
  year      = {2016},
  abstract  = {Objective This study assesses and quantifies impairment of postoperative magnetic resonance imaging (MRI) at 7 Tesla (T) after implantation of titanium cranial fixation plates (CFPs) for neurosurgical bone flap fixation. Materials and methods The study group comprised five patients who were intra-individually examined with 3 and 7 T MRI preoperatively and postoperatively (within 72 h/3 months) after implantation of CFPs. Acquired sequences included T₁-weighted magnetization-prepared rapid-acquisition gradient-echo (MPRAGE), T₂-weighted turbo-spin-echo (TSE) imaging, and susceptibility-weighted imaging (SWI). Two experienced neurosurgeons and a neuroradiologist rated image quality and the presence of artifacts in consensus reading. Results Minor artifacts occurred around the CFPs in MPRAGE and T2 TSE at both field strengths, with no significant differences between 3 and 7 T. In SWI, artifacts were accentuated in the early postoperative scans at both field strengths due to intracranial air and hemorrhagic remnants. After resorption, the brain tissue directly adjacent to skull bone could still be assessed. Image quality after 3 months was equal to the preoperative examinations at 3 and 7 T. Conclusion Image quality after CFP implantation was not significantly impaired in 7 T MRI, and artifacts were comparable to those in 3 T MRI.},
  language  = {en}
}
@article{ChenJostVolkeretal.2017,
  author    = {Chen, Chao and Jost, Peter and Volker, Hanno and Kaminski, Marvin and Wirtssohn, Matti R. and Engelmann, Ulrich M. and Kr{\"u}ger, K. and Schlich, Franziska F. and Schlockermann, Carl and Lobo, Ricardo P.S.M. and Wuttig, Matthias},
  title     = {Dielectric properties of amorphous phase-change materials},
  series = {Physical Review B},
  volume    = {95},
  journal   = {Physical Review B},
  number    = {9},
  issn      = {2469-9950},
  doi       = {10.1103/PhysRevB.95.094111},
  pages     = {Article number 094111},
  year      = {2017},
  language  = {en}
}
@article{ChenClauserMarquartetal.2015,
  author    = {Chen, Tao and Clauser, Christoph and Marquart, Gabriele and Willbrand, Karen and Mottaghy, Darius},
  title     = {A new upscaling method for fractured porous media},
  series = {Advances in Water Resources},
  volume    = {80},
  journal   = {Advances in Water Resources},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0309-1708},
  doi       = {10.1016/j.advwatres.2015.03.009},
  pages     = {60 -- 68},
  year      = {2015},
  language  = {en}
}
@article{ChengWollertChenetal.2023,
  author    = {Cheng, Chi-Tsun and Wollert, J{\"o}rg and Chen, Xi and Fapojuwo, Abraham O.},
  title     = {Guest Editorial : Circuits and Systems for Industry X.0 Applications},
  series = {IEEE Journal on Emerging and Selected Topics in Circuits and Systems},
  volume    = {13},
  journal   = {IEEE Journal on Emerging and Selected Topics in Circuits and Systems},
  edition   = {2},
  publisher = {IEEE},
  address   = {New York},
  issn      = {2156-3357 (Print)},
  doi       = {10.1109/JETCAS.2023.3278843},
  pages     = {457 -- 460},
  year      = {2023},
  language  = {en}
}
@inproceedings{ChircuCzarneckiFriedmannetal.2023,
  author    = {Chircu, Alina and Czarnecki, Christian and Friedmann, Daniel and Pomaskow, Johanna and Sultanow, Eldar},
  title     = {Towards a Digital Twin of Society},
  series = {Proceedings of the 56th Hawaii International Conference on System Sciences 2023},
  booktitle = {Proceedings of the 56th Hawaii International Conference on System Sciences 2023},
  publisher = {University of Hawai'i},
  address   = {Honolulu},
  isbn      = {978-0-9981331-6-4},
  pages     = {6748 -- 6757},
  year      = {2023},
  abstract  = {This paper describes the potential for developing a digital twin of society- a dynamic model that can be used to observe, analyze, and predict the evolution of various societal aspects. Such a digital twin can help governmental agencies and policy makers in interpreting trends, understanding challenges, and making decisions regarding investments or policies necessary to support societal development and ensure future prosperity. The paper reviews related work regarding the digital twin paradigm and its applications. The paper presents a motivating case study- an analysis of opportunities and challenges faced by the German federal employment agency, Bundesagentur f¨ur Arbeit (BA), proposes solutions using digital twins, and describes initial proofs of concept for such solutions.},
  language  = {en}
}
@article{ChloeMalyaranCraveiroetal.2022,
  author    = {Chlo{\´e}, Radermacher and Malyaran, Hanna and Craveiro, Rogerio Bastos and Peglow, Sarah and Behbahani, Mehdi and Pufe, Thomas and Wolf, Michael and Neuss, Sabine},
  title     = {Mechanical loading on cementoblasts: a mini review},
  series = {Osteologie},
  volume    = {31},
  journal   = {Osteologie},
  number    = {2},
  publisher = {Thieme},
  address   = {Stuttgart},
  issn      = {1019-1291},
  doi       = {10.1055/a-1826-0777},
  pages     = {111 -- 118},
  year      = {2022},
  abstract  = {Orthodontic treatments are concomitant with mechanical forces and thereby cause teeth movements. The applied forces are transmitted to the tooth root and the periodontal ligaments which is compressed on one side and tensed up on the other side. Indeed, strong forces can lead to tooth root resorption and the crown-to-tooth ratio is reduced with the potential for significant clinical impact. The cementum, which covers the tooth root, is a thin mineralized tissue of the periodontium that connects the periodontal ligament with the tooth and is build up by cementoblasts. The impact of tension and compression on these cells is investigated in several in vivo and in vitro studies demonstrating differences in protein expression and signaling pathways. In summary, osteogenic marker changes indicate that cyclic tensile forces support whereas static tension inhibits cementogenesis. Furthermore, cementogenesis experiences the same protein expression changes in static conditions as static tension, but cyclic compression leads to the exact opposite of cyclic tension. Consistent with marker expression changes, the singaling pathways of Wnt/ß-catenin and RANKL/OPG show that tissue compression leads to cementum degradation and tension forces to cementogenesis. However, the cementum, and in particular its cementoblasts, remain a research area which should be explored in more detail to understand the underlying mechanism of bone resorption and remodeling after orthodontic treatments.},
  language  = {en}
}
@article{ChoiFelderFelderetal.2020,
  author    = {Choi, Chang-Hoon and Felder, Tim and Felder, J{\"o}rg and Tellmann, Lutz and Hong, Suk-Min and Wegener, Hans-Peter and Shah, N Jon and Ziemons, Karl},
  title     = {Design, evaluation and comparison of endorectal coils for hybrid MR-PET imaging of the prostate},
  series = {Physics in Medicine \& Biology},
  volume    = {65},
  journal   = {Physics in Medicine \& Biology},
  number    = {11},
  publisher = {IOP},
  address   = {Bristol},
  issn      = {0031-9155},
  doi       = {10.1088/1361-6560/ab87f8},
  year      = {2020},
  abstract  = {Prostate cancer is one of the most common cancers among men and its early detection is critical for its successful treatment. The use of multimodal imaging, such as MR-PET, is most advantageous as it is able to provide detailed information about the prostate. However, as the human prostate is flexible and can move into different positions under external conditions, it is important to localise the focused region-of-interest using both MRI and PET under identical circumstances. In this work, we designed five commonly used linear and quadrature radiofrequency surface coils suitable for hybrid MR-PET use in endorectal applications. Due to the endorectal design and the shielded PET insert, the outer face of the coils investigated was curved and the region to be imaged was outside the volume of the coil. The tilting angles of the coils were varied with respect to the main magnetic field direction. This was done to approximate the various positions from which the prostate could be imaged. The transmit efficiencies and safety excitation efficiencies from simulations, together with the signal-to-noise ratios from the MR images were calculated and analysed. Overall, it was found that the overlapped loops driven in quadrature were superior to the other types of coils we tested. In order to determine the effect of the different coil designs on PET, transmission scans were carried out, and it was observed that the differences between attenuation maps with and without the coils were negligible. The findings of this work can provide useful guidance for the integration of such coil designs into MR-PET hybrid systems in the future.},
  language  = {en}
}
@article{ChristHollendungLarueetal.2004,
  author    = {Christ, D. and Hollendung, A. and Larue, H. and Parl, C. and Streun, M. and Weber, S. and Ziemons, Karl and Halling, H.},
  title     = {Homogenization of the MultiChannel PM gain by inserting light attenuating masks},
  series = {2003 IEEE Nuclear Science Symposium Conference Record, Vol. 4},
  journal   = {2003 IEEE Nuclear Science Symposium Conference Record, Vol. 4},
  issn      = {1082-3654},
  pages     = {2382 -- 2385},
  year      = {2004},
  abstract  = {MultiChannel Photomultipliers (PM), like the R7600-00-M64 or R5900-00-M64 from Hamamatsu, are often chosen as photodetectors in high-resolution positron emission tomography (PET). A major problem of this PM is the nonuniform channel gain. In order to solve this problem, light attenuating masks were created. The aim of the masks is a homogenization of the output of all 64 channels using different hole sizes at the channel positions. The hole area, which is individually defined for the different channels, is inversely proportional to the channel gain. The measurements by inserting light attenuating masks improved a homogenization to a ratio of 1:1.2.},
  language  = {en}
}
@article{ChristenBarteltKowalski2010,
  author    = {Christen, Marc and Bartelt, Perry and Kowalski, Julia},
  title     = {Back calculation of the In den Arelen avalanche with RAMMS: Interpretation of model results},
  series = {Annals of Glaciology},
  volume    = {51},
  journal   = {Annals of Glaciology},
  number    = {54},
  publisher = {Cambridge University Press},
  address   = {Cambridge},
  isbn      = {1727-5644},
  doi       = {10.3189/172756410791386553},
  pages     = {161 -- 168},
  year      = {2010},
  abstract  = {Two- and three-dimensional avalanche dynamics models are being increasingly used in hazard-mitigation studies. These models can provide improved and more accurate results for hazard mapping than the simple one-dimensional models presently used in practice. However, two- and three-dimensional models generate an extensive amount of output data, making the interpretation of simulation results more difficult. To perform a simulation in three-dimensional terrain, numerical models require a digital elevation model, specification of avalanche release areas (spatial extent and volume), selection of solution methods, finding an adequate calculation resolution and, finally, the choice of friction parameters. In this paper, the importance and difficulty of correctly setting up and analysing the results of a numerical avalanche dynamics simulation is discussed. We apply the two-dimensional simulation program RAMMS to the 1968 extreme avalanche event In den Arelen. We show the effect of model input variations on simulation results and the dangers and complexities in their interpretation.},
  language  = {en}
}
@inproceedings{ChristenBarteltKowalskietal.2008,
  author    = {Christen, Marc and Bartelt, Perry and Kowalski, Julia and Stoffel, Lukus},
  title     = {Calculation of dense snow avalanches in three-dimensional terrain with the numerical simulation programm RAMMS},
  series = {Proceedings ISSW 2008 ; International Snow Science Workshop. Whistler 2008},
  booktitle = {Proceedings ISSW 2008 ; International Snow Science Workshop. Whistler 2008},
  pages     = {709 -- 716},
  year      = {2008},
  abstract  = {Numerical models have become an essential part of snow avalanche engineering. Recent advances in understanding the rheology of flowing snow and the mechanics of entrainment and deposition have made numerical models more reliable. Coupled with field observations and historical records, they are especially helpful in understanding avalanche flow in complex terrain. However, the application of numerical models poses several new challenges to avalanche engineers. A detailed understanding of the avalanche phenomena is required to specify initial conditions (release zone dimensions and snowcover entrainment rates) as well as the friction parameters, which are no longer based on empirical back-calculations, rather terrain roughness, vegetation and snow properties. In this paper we discuss these problems by presenting the computer model RAMMS, which was specially designed by the SLF as a practical tool for avalanche engineers. RAMMS solves the depth-averaged equations governing avalanche flow with first and second-order numerical solution schemes. A tremendous effort has been invested in the implementation of advanced input and output features. Simulation results are therefore clearly and easily visualized to simplify their interpretation. More importantly, RAMMS has been applied to a series of well-documented avalanches to gauge model performance. In this paper we present the governing differential equations, highlight some of the input and output features of RAMMS and then discuss the simulation of the Gatschiefer avalanche that occurred in April 2008, near Klosters/Monbiel, Switzerland.},
  language  = {en}
}
@article{ChristenKowalskiBartelt2010,
  author    = {Christen, Marc and Kowalski, Julia and Bartelt, Perry},
  title     = {RAMMS: Numerical simulation of dense snow avalanches in three-dimensional terrain},
  series = {Cold Regions Science and Technology},
  volume    = {63},
  journal   = {Cold Regions Science and Technology},
  number    = {1-2},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-7441},
  doi       = {10.1016/j.coldregions.2010.04.005},
  pages     = {1 -- 14},
  year      = {2010},
  abstract  = {Numerical avalanche dynamics models have become an essential part of snow engineering. Coupled with field observations and historical records, they are especially helpful in understanding avalanche flow in complex terrain. However, their application poses several new challenges to avalanche engineers. A detailed understanding of the avalanche phenomena is required to construct hazard scenarios which involve the careful specification of initial conditions (release zone location and dimensions) and definition of appropriate friction parameters. The interpretation of simulation results requires an understanding of the numerical solution schemes and easy to use visualization tools. We discuss these problems by presenting the computer model RAMMS, which was specially designed by the SLF as a practical tool for avalanche engineers. RAMMS solves the depth-averaged equations governing avalanche flow with accurate second-order numerical solution schemes. The model allows the specification of multiple release zones in three-dimensional terrain. Snow cover entrainment is considered. Furthermore, two different flow rheologies can be applied: the standard Voellmy-Salm (VS) approach or a random kinetic energy (RKE) model, which accounts for the random motion and inelastic interaction between snow granules. We present the governing differential equations, highlight some of the input and output features of RAMMS and then apply the models with entrainment to simulate two well-documented avalanche events recorded at the Vall{\´e}e de la Sionne test site.},
  language  = {en}
}
@article{ChristiaensAbouzarPoghossianetal.2007,
  author    = {Christiaens, P. and Abouzar, Maryam H. and Poghossian, Arshak and Wagner, Torsten and Bijnens, N. and Williams, O. A. and Daenen, M. and Haenen, K. and Douth{\´e}ret, O. and Haen, J. d´ and Mekhalif, Z. and Sch{\"o}ning, Michael Josef and Wagner, P.},
  title     = {pH sensitivity of nanocrystalline diamond films},
  series = {Physica status solidi (A). 204 (2007), H. 9},
  journal   = {Physica status solidi (A). 204 (2007), H. 9},
  isbn      = {0031-8965},
  pages     = {2925 -- 2930},
  year      = {2007},
  language  = {en}
}
@article{ChristiaensAbouzarPoghossianetal.2007,
  author    = {Christiaens, P. and Abouzar, Maryam H. and Poghossian, Arshak and Wagner, Torsten and Bijnens, N. and Williams, O. A. and Daenen, M. and Haenen, K. and Sch{\"o}ning, Michael Josef and Wagner, P.},
  title     = {Nanocrystalline diamond-based field-effect capacitive pH sensor},
  series = {Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)},
  journal   = {Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)},
  publisher = {IEEE},
  address   = {Piscataway},
  isbn      = {1-4244-0841-5},
  pages     = {1891 -- 1894},
  year      = {2007},
  language  = {en}
}
@inproceedings{ChristianMontagSchubaetal.2018,
  author    = {Christian, Esser and Montag, Tim and Schuba, Marko and Allhof, Manuel},
  title     = {Future critical infrastructure and security - cyberattacks on charging stations},
  series = {31st International Electric Vehicle Symposium \& Exhibition and International Electric Vehicle Technology Conference (EVS31 \& EVTeC 2018)},
  booktitle = {31st International Electric Vehicle Symposium \& Exhibition and International Electric Vehicle Technology Conference (EVS31 \& EVTeC 2018)},
  publisher = {Society of Automotive Engineers of Japan (JSAE)},
  address   = {Tokyo},
  isbn      = {978-1-5108-9157-9},
  pages     = {665 -- 671},
  year      = {2018},
  language  = {en}
}
@article{ChristophBahrenbergVryetal.2008,
  author    = {Christoph, Thomas and Bahrenberg, Gregor and Vry, Jean de and Englberger, Werner and Erdmann, Volker A. and Frech, Moritz and K{\"o}gel, Babette and R{\"o}hl, Thomas and Schiene, Klaus and Schr{\"o}der, Wolfgang and Seibler, Jost and Kurreck, Jens},
  title     = {Investigation of TRPV1 loss-of-function phenotypes in transgenic shRNA expressing and knockout mice},
  series = {Molecular and Cellular Neuroscience},
  volume    = {37},
  journal   = {Molecular and Cellular Neuroscience},
  number    = {3},
  issn      = {1044-7431},
  doi       = {10.1016/j.mcn.2007.12.006},
  pages     = {579 -- 589},
  year      = {2008},
  language  = {en}
}
@inproceedings{ChudobaButenwegKuhlmann2002,
  author    = {Chudoba, Rostislav and Butenweg, Christoph and Kuhlmann, Wolfram},
  title     = {Technical information system for collaborative material research},
  series = {Sixth International Conference on Computational Structures Technology : [Prague, Czech Republic, 4 - 6 September 2002]},
  booktitle = {Sixth International Conference on Computational Structures Technology : [Prague, Czech Republic, 4 - 6 September 2002]},
  organization    = {International Conference on Computational Structures Technology <6, 2002, Prag>},
  pages     = {1 -- 11},
  year      = {2002},
  language  = {en}
}
@article{ChudobaButenwegPeiffer2004,
  author    = {Chudoba, Rostislav and Butenweg, Christoph and Peiffer, F.},
  title     = {Technical information system for collaborative material research},
  series = {Advances in engineering software},
  volume    = {Volume 35},
  journal   = {Advances in engineering software},
  number    = {Issue 10-11},
  issn      = {1873-5339 (E-Journal); 0965-9978 (Print)},
  doi       = {10.1016/j.advengsoft.2004.03.021},
  pages     = {747 -- 756},
  year      = {2004},
  language  = {en}
}
@inproceedings{ChudobaButenwegPfeiffer2003,
  author    = {Chudoba, Rostislav and Butenweg, Christoph and Pfeiffer, Frank},
  title     = {Textile reinforced concrete. Part I: Process model for collaborative research and development},
  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 -- 8},
  year      = {2003},
  language  = {en}
}
@inproceedings{ChudobaKonradSchleseretal.2009,
  author    = {Chudoba, Rostislav and Konrad, Martin and Schleser, Markus and Meskouris, Konstantin and Reisgen, Uwe},
  title     = {Parametric study of tensile response of TRC specimens reinforced with epoxy-penetrated multi-filament yarns},
  series = {Textilbeton - Theorie und Praxis : Tagungsband zum 4. Kolloquium zu textilbewehrten Tragwerken (CTRS4) und zur 1. Anwendertagung, Dresden, 3.6.2009 - 5.6.2009},
  booktitle = {Textilbeton - Theorie und Praxis : Tagungsband zum 4. Kolloquium zu textilbewehrten Tragwerken (CTRS4) und zur 1. Anwendertagung, Dresden, 3.6.2009 - 5.6.2009},
  editor    = {Curbach, Manfred},
  publisher = {Techn. Univ.},
  address   = {Dresden},
  isbn      = {978-3-86780-122-5},
  pages     = {87 -- 98},
  year      = {2009},
  language  = {en}
}
@inproceedings{ChurilovDumovaJovanoskaButenweg2013,
  author    = {Churilov, Sergej and Dumova-Jovanoska, Elena and Butenweg, Christoph},
  title     = {Seismic verification of existing masonry buildings and strengthening with reinforced concrete jackets},
  series = {Proceedings - Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics 2013 (VEESD 2013)},
  booktitle = {Proceedings - Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics 2013 (VEESD 2013)},
  editor    = {Adam, Christoph and Heuer, Rudolf and Lenhardt, Wolfgang and Schranz, Christian},
  isbn      = {978-3-902749-04-8},
  year      = {2013},
  abstract  = {A methodology for assessment, seismic verification and strengthening of existing masonry buildings is presented in this paper. The verification is performed using a calculation model calibrated with the results from ambient vibration measurements. The calibrated model serves as an input for a deformation-based verification procedure based on the Capacity Spectrum Method (CSM). The bearing capacity of the building is calculated from experimental capacity curves of the individual walls idealized with bilinear elastic-perfectly plastic curves. The experimental capacity curves were obtained from in-plane cyclic loading tests on unreinforced and strengthened masonry walls with reinforced concrete jackets. The seismic action is compared with the load-bearing capacity of the building considering non-linear material behavior with its post-peak capacity. The application of the CSM to masonry buildings and the influence of a traditional strengthening method are demonstrated on the example of a public school building in Skopje, Macedonia.},
  language  = {en}
}
@book{ChwallekFelden2006,
  author    = {Chwallek, Constanze and Felden, Birgit},
  title     = {RatingCheck : Wertsch{\"o}pfungskette / Chwallek, Constanze ; Felden, Birgit},
  publisher = {Deutscher Sparkassen Verlag},
  address   = {Stuttgart},
  year      = {2006},
  language  = {en}
}
@article{CiobanuStaatRahimi2008,
  author    = {Ciobanu, Octavian and Staat, Manfred and Rahimi, Alireza},
  title     = {The use of open source software in biomechanical finite element analysis},
  series = {Buletinul Institutului Politehnic din Ia{\c{s}}i / Universitatea Tehnică Gh. Asachi, Ia{\c{s}}i Secţia 5, Construcţii de ma{\c{s}}ini = Machine construction = Bulletin of the Polytechnic Institute of Jassy = Izvestija Jasskogo Politechničeskogo Instituta},
  volume    = {54},
  journal   = {Buletinul Institutului Politehnic din Ia{\c{s}}i / Universitatea Tehnică Gh. Asachi, Ia{\c{s}}i Secţia 5, Construcţii de ma{\c{s}}ini = Machine construction = Bulletin of the Polytechnic Institute of Jassy = Izvestija Jasskogo Politechničeskogo Instituta},
  number    = {7/8},
  issn      = {1011-2855},
  pages     = {213 -- 220},
  year      = {2008},
  language  = {en}
}
@article{CiritsisHorbachStaatetal.2018,
  author    = {Ciritsis, Alexander and Horbach, Andreas and Staat, Manfred and Kuhl, Christiane K. and Kraemer, Nils Andreas},
  title     = {Porosity and tissue integration of elastic mesh implants evaluated in vitro and in vivo},
  series = {Journal of Biomedical Materials Research: Part B: Applied Biomaterials},
  volume    = {106},
  journal   = {Journal of Biomedical Materials Research: Part B: Applied Biomaterials},
  number    = {2},
  publisher = {Wiley},
  address   = {New York, NY},
  issn      = {1552-4981},
  doi       = {10.1002/jbm.b.33877},
  pages     = {827 -- 833},
  year      = {2018},
  abstract  = {Purpose In vivo, a loss of mesh porosity triggers scar tissue formation and restricts functionality. The purpose of this study was to evaluate the properties and configuration changes as mesh deformation and mesh shrinkage of a soft mesh implant compared with a conventional stiff mesh implant in vitro and in a porcine model. Material and Methods Tensile tests and digital image correlation were used to determine the textile porosity for both mesh types in vitro. A group of three pigs each were treated with magnetic resonance imaging (MRI) visible conventional stiff polyvinylidene fluoride meshes (PVDF) or with soft thermoplastic polyurethane meshes (TPU) (FEG Textiltechnik mbH, Aachen, Germany), respectively. MRI was performed with a pneumoperitoneum at a pressure of 0 and 15 mmHg, which resulted in bulging of the abdomen. The mesh-induced signal voids were semiautomatically segmented and the mesh areas were determined. With the deformations assessed in both mesh types at both pressure conditions, the porosity change of the meshes after 8 weeks of ingrowth was calculated as an indicator of preserved elastic properties. The explanted specimens were examined histologically for the maturity of the scar (collagen I/III ratio). Results In TPU, the in vitro porosity increased constantly, in PVDF, a loss of porosity was observed under mild stresses. In vivo, the mean mesh areas of TPU were 206.8 cm2 (± 5.7 cm2) at 0 mmHg pneumoperitoneum and 274.6 cm2 (± 5.2 cm2) at 15 mmHg; for PVDF the mean areas were 205.5 cm2 (± 8.8 cm2) and 221.5 cm2 (± 11.8 cm2), respectively. The pneumoperitoneum-induced pressure increase resulted in a calculated porosity increase of 8.4\% for TPU and of 1.2\% for PVDF. The mean collagen I/III ratio was 8.7 (± 0.5) for TPU and 4.7 (± 0.7) for PVDF. Conclusion The elastic properties of TPU mesh implants result in improved tissue integration compared to conventional PVDF meshes, and they adapt more efficiently to the abdominal wall. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 827-833, 2018.},
  language  = {en}
}
@article{ClaerFerreinSchiffer2019,
  author    = {Claer, Mario and Ferrein, Alexander and Schiffer, Stefan},
  title     = {Calibration of a Rotating or Revolving Platform with a LiDAR Sensor},
  series = {Applied Sciences},
  volume    = {Volume 9},
  journal   = {Applied Sciences},
  number    = {issue 11, 2238},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2076-3417},
  doi       = {10.3390/app9112238},
  pages     = {18 Seiten},
  year      = {2019},
  language  = {en}
}
@article{ClaessensFuchsbergerGuentheretal.2003,
  author    = {Claessens, J. and Fuchsberger, A. and G{\"u}nther, C. and Horn, G. and Howker, K. and Hulsebosch, R.J. and Mitchell, C. and Paterson, K. and Preneel, B. and Schellekens, D. and Schuba, Marko},
  title     = {Pioneering Advanced Mobile Privacy and Security},
  pages     = {1 -- 17},
  year      = {2003},
  language  = {en}
}
@article{CollPeralesSchulteTiggesRondinoneetal.2022,
  author    = {Coll-Perales, Baldomero and Schulte-Tigges, Joschua and Rondinone, Michele and Gozalvez, Javier and Reke, Michael and Matheis, Dominik and Walter, Thomas},
  title     = {Prototyping and evaluation of infrastructure-assisted transition of control for cooperative automated vehicles},
  series = {IEEE Transactions on Intelligent Transportation Systems},
  volume    = {23},
  journal   = {IEEE Transactions on Intelligent Transportation Systems},
  number    = {7},
  publisher = {IEEE},
  issn      = {1524-9050 (Print)},
  doi       = {10.1109/TITS.2021.3061085},
  pages     = {6720 -- 6736},
  year      = {2022},
  abstract  = {Automated driving is now possible in diverse road and traffic conditions. However, there are still situations that automated vehicles cannot handle safely and efficiently. In this case, a Transition of Control (ToC) is necessary so that the driver takes control of the driving. Executing a ToC requires the driver to get full situation awareness of the driving environment. If the driver fails to get back the control in a limited time, a Minimum Risk Maneuver (MRM) is executed to bring the vehicle into a safe state (e.g., decelerating to full stop). The execution of ToCs requires some time and can cause traffic disruption and safety risks that increase if several vehicles execute ToCs/MRMs at similar times and in the same area. This study proposes to use novel C-ITS traffic management measures where the infrastructure exploits V2X communications to assist Connected and Automated Vehicles (CAVs) in the execution of ToCs. The infrastructure can suggest a spatial distribution of ToCs, and inform vehicles of the locations where they could execute a safe stop in case of MRM. This paper reports the first field operational tests that validate the feasibility and quantify the benefits of the proposed infrastructure-assisted ToC and MRM management. The paper also presents the CAV and roadside infrastructure prototypes implemented and used in the trials. The conducted field trials demonstrate that infrastructure-assisted traffic management solutions can reduce safety risks and traffic disruptions.},
  language  = {en}
}
@article{ColomboDriraFrotscheretal.2022,
  author    = {Colombo, Daniele and Drira, Slah and Frotscher, Ralf and Staat, Manfred},
  title     = {An element-based formulation for ES-FEM and FS-FEM models for implementation in standard solid mechanics finite element codes for 2D and 3D static analysis},
  series = {International Journal for Numerical Methods in Engineering},
  volume    = {124},
  journal   = {International Journal for Numerical Methods in Engineering},
  number    = {2},
  publisher = {Wiley},
  address   = {Chichester},
  issn      = {1097-0207},
  doi       = {10.1002/nme.7126},
  pages     = {402 -- 433},
  year      = {2022},
  abstract  = {Edge-based and face-based smoothed finite element methods (ES-FEM and FS-FEM, respectively) are modified versions of the finite element method allowing to achieve more accurate results and to reduce sensitivity to mesh distortion, at least for linear elements. These properties make the two methods very attractive. However, their implementation in a standard finite element code is nontrivial because it requires heavy and extensive modifications to the code architecture. In this article, we present an element-based formulation of ES-FEM and FS-FEM methods allowing to implement the two methods in a standard finite element code with no modifications to its architecture. Moreover, the element-based formulation permits to easily manage any type of element, especially in 3D models where, to the best of the authors' knowledge, only tetrahedral elements are used in FS-FEM applications found in the literature. Shape functions for non-simplex 3D elements are proposed in order to apply FS-FEM to any standard finite element.},
  language  = {en}
}
@techreport{ConanD'HaeyerBeguinetal.2006,
  author    = {Conan, Yulian and D'Haeyer, R. and B{\´e}guin, P. and D{\"o}ring, Bernd and Kuhnhenne, Markus and Bayo, E.},
  title     = {Steel in low-rise building : a symbiosis of cold formed sections and light rolled profiles : final report. Contract-No. 7215-PP/070. EUR 22080 en},
  publisher = {Office for Official Publications of the European Communities},
  address   = {Luxembourg},
  isbn      = {92-79-02082-X},
  pages     = {200 S.},
  year      = {2006},
  language  = {en}
}
@article{ConzenAlbannaWeissetal.2018,
  author    = {Conzen, Catharina and Albanna, Walid and Weiss, Miriam and K{\"u}rten, David and Vilser, Walthard and Kotliar, Konstantin and Z{\"a}ske, Charlotte and Clusmann, Hans and Schubert, Gerrit Alexander},
  title     = {Vasoconstriction and Impairment of Neurovascular Coupling after Subarachnoid Hemorrhage: a Descriptive Analysis of Retinal Changes},
  series = {Translational Stroke Research},
  journal   = {Translational Stroke Research},
  number    = {9},
  publisher = {Springer Nature},
  address   = {Cham},
  issn      = {1868-601X},
  doi       = {10.1007/s12975-017-0585-8},
  pages     = {284 -- 293},
  year      = {2018},
  abstract  = {Impaired cerebral autoregulation and neurovascular coupling (NVC) contribute to delayed cerebral ischemia after subarachnoid hemorrhage (SAH). Retinal vessel analysis (RVA) allows non-invasive assessment of vessel dimension and NVC hereby demonstrating a predictive value in the context of various neurovascular diseases. Using RVA as a translational approach, we aimed to assess the retinal vessels in patients with SAH. RVA was performed prospectively in 24 patients with acute SAH (group A: day 5-14), in 11 patients 3 months after ictus (group B: day 90 ± 35), and in 35 age-matched healthy controls (group C). Data was acquired using a Retinal Vessel Analyzer (Imedos Systems UG, Jena) for examination of retinal vessel dimension and NVC using flicker-light excitation. Diameter of retinal vessels—central retinal arteriolar and venular equivalent—was significantly reduced in the acute phase (p < 0.001) with gradual improvement in group B (p < 0.05). Arterial NVC of group A was significantly impaired with diminished dilatation (p < 0.001) and reduced area under the curve (p < 0.01) when compared to group C. Group B showed persistent prolonged latency of arterial dilation (p < 0.05). Venous NVC was significantly delayed after SAH compared to group C (A p < 0.001; B p < 0.05). To our knowledge, this is the first clinical study to document retinal vasoconstriction and impairment of NVC in patients with SAH. Using non-invasive RVA as a translational approach, characteristic patterns of compromise were detected for the arterial and venous compartment of the neurovascular unit in a time-dependent fashion. Recruitment will continue to facilitate a correlation analysis with clinical course and outcome.},
  language  = {en}
}
@inproceedings{CordesGligorevicBlicharski2019,
  author    = {Cordes, Sven and Gligorevic, Snjezana and Blicharski, Peter},
  title     = {Analysis of sine precision influence on DOA estimation using the MUSIC algorithm},
  series = {2019 20th International Radar Symposium (IRS)},
  booktitle = {2019 20th International Radar Symposium (IRS)},
  isbn      = {978-3-7369-9860-5},
  doi       = {10.23919/IRS.2019.8768162},
  pages     = {1 -- 10},
  year      = {2019},
  language  = {en}
}
@article{CornelisGivanoudiYongabietal.2019,
  author    = {Cornelis, Peter and Givanoudi, Stella and Yongabi, Derick and Iken, Heiko and Duw{\´e}, Sam and Deschaume, Olivier and Robbens, Johan and Dedecker, Peter and Bartic, Carmen and W{\"u}bbenhorst, Michael and Sch{\"o}ning, Michael Josef and Heyndrickx, Marc and Wagner, Patrick},
  title     = {Sensitive and specific detection of E. coli using biomimetic receptors in combination with a modified heat-transfer method},
  series = {Biosensors and Bioelectronics},
  volume    = {136},
  journal   = {Biosensors and Bioelectronics},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0956-5663},
  doi       = {10.1016/j.bios.2019.04.026},
  pages     = {97 -- 105},
  year      = {2019},
  language  = {en}
}
@article{CosmaKesslerGebhardtetal.2020,
  author    = {Cosma, Cosmin and Kessler, Julia and Gebhardt, Andreas and Campbell, Ian and Balc, Nicolae},
  title     = {Improving the Mechanical Strength of Dental Applications and Lattice Structures SLM Processed},
  series = {Materials},
  volume    = {13},
  journal   = {Materials},
  number    = {4},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {1996-1944},
  doi       = {10.3390/ma13040905},
  pages     = {1 -- 18},
  year      = {2020},
  abstract  = {To manufacture custom medical parts or scaffolds with reduced defects and high mechanical characteristics, new research on optimizing the selective laser melting (SLM) parameters are needed. In this work, a biocompatible powder, 316L stainless steel, is characterized to understand the particle size, distribution, shape and flowability. Examination revealed that the 316L particles are smooth, nearly spherical, their mean diameter is 39.09 μm and just 10\% of them hold a diameter less than 21.18 μm. SLM parameters under consideration include laser power up to 200 W, 250-1500 mm/s scanning speed, 80 μm hatch spacing, 35 μm layer thickness and a preheated platform. The effect of these on processability is evaluated. More than 100 samples are SLM-manufactured with different process parameters. The tensile results show that is possible to raise the ultimate tensile strength up to 840 MPa, adapting the SLM parameters for a stable processability, avoiding the technological defects caused by residual stress. Correlating with other recent studies on SLM technology, the tensile strength is 20\% improved. To validate the SLM parameters and conditions established, complex bioengineering applications such as dental bridges and macro-porous grafts are SLM-processed, demonstrating the potential to manufacture medical products with increased mechanical resistance made of 316L.},
  language  = {en}
}
@incollection{CresserHaegerLeuchsetal.1982,
  author    = {Cresser, J. D. and H{\"a}ger, J. and Leuchs, G. and Rateike, Franz-Matthias and Walther, H.},
  title     = {Resonance fluorescence of atoms in strong monochromatic laser fields},
  series = {Dissipative systems in quantum optics. Ed. by Rodolfo Bonifacio. Topics in current physics. Vol. 27},
  booktitle = {Dissipative systems in quantum optics. Ed. by Rodolfo Bonifacio. Topics in current physics. Vol. 27},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-642-81719-9},
  doi       = {10.1007/978-3-642-81717-5_3},
  pages     = {21 -- 59},
  year      = {1982},
  abstract  = {The investigation of atomic resonance fluorescence has always been of special interest as a means for the determination of atomic parameters. In addition, information on the interaction mechanism between atoms and radiation can be obtained. In the standard fluorescence experiment the frequency distribution of the incident photons is larger than the natural width of the respective transition; as a consequence the correlation time in the photon-atom interaction is determined by the lifetime of the atoms in the excited state. With the development of lasers and especially of tunable dye lasers in recent years it became possible to study the case where the incident radiation has a spectral distribution which is narrower than the natural width. This corresponds to a correlation time of the incoming light wave which is much longer than the excited-state lifetime. In this chapter a survey of experiments on the resonance fluorescence of atoms in monochromatic laser fields will be given.},
  language  = {en}
}
@incollection{CroonCzarnecki2021,
  author    = {Croon, Philipp and Czarnecki, Christian},
  title     = {Liability for loss or damages caused by RPA},
  series = {Robotic process automation : Management, technology, applications},
  booktitle = {Robotic process automation : Management, technology, applications},
  editor    = {Czarnecki, Christian and Fettke, Peter},
  publisher = {De Gruyter},
  address   = {Oldenbourg},
  isbn      = {9783110676778},
  doi       = {10.1515/9783110676693-202},
  pages     = {135 -- 151},
  year      = {2021},
  abstract  = {Intelligent autonomous software robots replacing human activities and performing administrative processes are reality in today's corporate world. This includes, for example, decisions about invoice payments, identification of customers for a marketing campaign, and answering customer complaints. What happens if such a software robot causes a damage? Due to the complete absence of human activities, the question is not trivial. It could even happen that no one is liable for a damage towards a third party, which could create an uncalculatable legal risk for business partners. Furthermore, the implementation and operation of those software robots involves various stakeholders, which result in the unsolvable endeavor of identifying the originator of a damage. Overall it is advisable to all involved parties to carefully consider the legal situation. This chapter discusses the liability of software robots from an interdisciplinary perspective. Based on different technical scenarios the legal aspects of liability are discussed.},
  language  = {en}
}
@incollection{Czarnecki2018,
  author    = {Czarnecki, Christian},
  title     = {Establishment of a central process governance organization combined with operational process improvements : Insights from a BPM Project at a leading telecommunications operator in the Middle East},
  series = {Business process management cases : digital innovation and business transformation in practice},
  booktitle = {Business process management cases : digital innovation and business transformation in practice},
  editor    = {vom Brocke, Jan and Mendling, Jan},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-58306-8},
  doi       = {10.1007/978-3-319-58307-5},
  pages     = {57 -- 76},
  year      = {2018},
  abstract  = {Because of customer churn, strong competition, and operational inefficiencies, the telecommunications operator ME Telco (fictitious name due to confidentiality) launched a strategic transformation program that included a Business Process Management (BPM) project. Major problems were silo-oriented process management and missing cross-functional transparency. Process improvements were not consistently planned and aligned with corporate targets. Measurable inefficiencies were observed on an operational level, e.g., high lead times and reassignment rates of the incident management process.},
  language  = {en}
}
@inproceedings{CzarneckiDietze2017,
  author    = {Czarnecki, Christian and Dietze, Christian},
  title     = {Domain-Specific reference modeling in the telecommunications industry},
  series = {DESRIST 2017: Designing the Digital Transformation},
  booktitle = {DESRIST 2017: Designing the Digital Transformation},
  editor    = {Maedche, Alexander and vom Brocke, Jan and Hevner, Alan},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-59144-5},
  doi       = {10.1007/978-3-319-59144-5_19},
  pages     = {313 -- 329},
  year      = {2017},
  abstract  = {The telecommunications industry is currently going through a major transformation. In this context, the enhanced Telecom Operations Map (eTOM) is a domain-specific process reference model that is offered by the industry organization TM Forum. In practice, eTOM is well accepted and confirmed as de facto standard. It provides process definitions and process flows on different levels of detail. This article discusses the reference modeling of eTOM, i.e., the design, the resulting artifact, and its evaluation based on three project cases. The application of eTOM in three projects illustrates the design approach and concrete models on strategic and operational levels. The article follows the Design Science Research (DSR) paradigm. It contributes with concrete design artifacts to the transformational needs of the telecommunications industry and offers lessons-learned from a general DSR perspective.},
  language  = {en}
}
@book{CzarneckiDietze2017,
  author    = {Czarnecki, Christian and Dietze, Christian},
  title     = {Reference architecture for the telecommunications industry: Transformation of strategy, organization, processes, data, and applications},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-46755-9 (Print)},
  doi       = {10.1007/978-3-319-46757-3},
  pages     = {XXII, 253 Seiten},
  year      = {2017},
  abstract  = {This book reflects the tremendous changes in the telecommunications industry in the course of the past few decades - shorter innovation cycles, stiffer competition and new communication products. It analyzes the transformation of processes, applications and network technologies that are now expected to take place under enormous time pressure. The International Telecommunication Union (ITU) and the TM Forum have provided reference solutions that are broadly recognized and used throughout the value chain of the telecommunications industry, and which can be considered the de facto standard. The book describes how these reference solutions can be used in a practical context: it presents the latest insights into their development, highlights lessons learned from numerous international projects and combines them with well-founded research results in enterprise architecture management and reference modeling. The complete architectural transformation is explained, from the planning and set-up stage to the implementation. Featuring a wealth of examples and illustrations, the book offers a valuable resource for telecommunication professionals, enterprise architects and project managers alike.},
  language  = {en}
}
@incollection{CzarneckiFettke2021,
  author    = {Czarnecki, Christian and Fettke, Peter},
  title     = {Robotic process automation : Positioning, structuring, and framing the work},
  series = {Robotic process automation : Management, technology, applications},
  booktitle = {Robotic process automation : Management, technology, applications},
  editor    = {Czarnecki, Christian and Fettke, Peter},
  publisher = {De Gruyter},
  address   = {Oldenbourg},
  isbn      = {978-3-11-067668-6 (Print)},
  doi       = {10.1515/9783110676693-202},
  pages     = {3 -- 24},
  year      = {2021},
  abstract  = {Robotic process automation (RPA) has attracted increasing attention in research and practice. This chapter positions, structures, and frames the topic as an introduction to this book. RPA is understood as a broad concept that comprises a variety of concrete solutions. From a management perspective RPA offers an innovative approach for realizing automation potentials, whereas from a technical perspective the implementation based on software products and the impact of artificial intelligence (AI) and machine learning (ML) are relevant. RPA is industry-independent and can be used, for example, in finance, telecommunications, and the public sector. With respect to RPA this chapter discusses definitions, related approaches, a structuring framework, a research framework, and an inside as well as outside architectural view. Furthermore, it provides an overview of the book combined with short summaries of each chapter.},
  language  = {en}
}
@inproceedings{CzarneckiHeuserSpiliopoulou2009,
  author    = {Czarnecki, Christian and Heuser, Marcus and Spiliopoulou, Myra},
  title     = {How does the implementation of a next generation network influence a telecommunication company?},
  series = {European and Mediterranean Conference on Information Systems},
  booktitle = {European and Mediterranean Conference on Information Systems},
  editor    = {Irani, Zahir},
  publisher = {Brunel University},
  address   = {London},
  isbn      = {9781902316697},
  pages     = {1 -- 11},
  year      = {2009},
  abstract  = {As the potential of a Next Generation Network (NGN) is recognized, telecommunication companies consider switching to it. Although the implementation of an NGN seems to be merely a modification of the network infrastructure, it may trigger or require changes in the whole company and even influence the company strategy. To capture the effects of NGN we propose a framework based on concepts of business engineering and technical recommendations for the introduction of NGN technology. The specific design of solutions for the layers "Strategy", "Processes" and "Information Systems" as well as their interdependencies are an essential characteristic of the developed framework. We have per-formed a case study on NGN implementation and observed that all layers captured by our framework are influenced by the introduction of an NGN.},
  language  = {en}
}
@incollection{CzarneckiHongSchmitzetal.2021,
  author    = {Czarnecki, Christian and Hong, Chin-Gi and Schmitz, Manfred and Dietze, Christian},
  title     = {Enabling digital transformation through cognitive robotic process automation at Deutsche Telekom Services Europe},
  series = {Digitalization Cases Vol. 2 : Mastering digital transformation for global business},
  booktitle = {Digitalization Cases Vol. 2 : Mastering digital transformation for global business},
  editor    = {Urbach, Nils and R{\"o}glinger, Maximilian and Kautz, Karlheinz and Alias, Rose Alinda and Saunders, Carol and Wiener, Martin},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-030-80002-4 (Print)},
  doi       = {10.1007/978-3-030-80003-1},
  pages     = {123 -- 138},
  year      = {2021},
  abstract  = {Subject of this case is Deutsche Telekom Services Europe (DTSE), a service center for administrative processes. Due to the high volume of repetitive tasks (e.g., 100k manual uploads of offer documents into SAP per year), automation was identified as an important strategic target with a high management attention and commitment. DTSE has to work with various backend application systems without any possibility to change those systems. Furthermore, the complexity of administrative processes differed. When it comes to the transfer of unstructured data (e.g., offer documents) to structured data (e.g., MS Excel files), further cognitive technologies were needed.},
  language  = {en}
}