@inproceedings{FingerBraunBil2018,
  author    = {Finger, Felix and Braun, Carsten and Bil, Cees},
  title     = {Case studies in initial sizing for hybrid-electric general aviation aircraft},
  series = {2018 AIAA/IEEE Electric Aircraft Technologies Symposium, Cincinnati, Ohio},
  booktitle = {2018 AIAA/IEEE Electric Aircraft Technologies Symposium, Cincinnati, Ohio},
  doi       = {10.2514/6.2018-5005},
  year      = {2018},
  language  = {en}
}
@article{DethloffKrollLudwigs2006,
  author    = {Dethloff, Nina and Kroll-Ludwigs, Kathrin},
  title     = {The Constitutional Court as Driver of Reforms in German Family Law},
  series = {International Survey of Family Law},
  journal   = {International Survey of Family Law},
  pages     = {217 -- 234},
  year      = {2006},
  language  = {en}
}
@article{DethloffKrollLudwigs2008,
  author    = {Dethloff, Nina and Kroll-Ludwigs, Kathrin},
  title     = {Strengthening Children's Rights in German Family Law},
  series = {The International Survey of Family Law},
  journal   = {The International Survey of Family Law},
  pages     = {119 -- 136},
  year      = {2008},
  language  = {en}
}
@article{KrollLudwigs2007,
  author    = {Kroll-Ludwigs, Kathrin},
  title     = {The Reform of German Maintenance Law},
  series = {The International Survey of Family Law},
  journal   = {The International Survey of Family Law},
  pages     = {85 -- 100},
  year      = {2007},
  language  = {en}
}
@article{KramerValeroChansonetal.2019,
  author    = {Kramer, Matthias and Valero, Daniel and Chanson, Hubert and Bung, Daniel Bernhard},
  title     = {Towards reliable turbulence estimations with phase-detection probes: an adaptive window cross-correlation technique},
  series = {Experiments in Fluids},
  volume    = {60},
  journal   = {Experiments in Fluids},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1432-1114},
  doi       = {10.1007/s00348-018-2650-9},
  year      = {2019},
  language  = {en}
}
@article{HueningHeuermannWache2018,
  author    = {H{\"u}ning, Felix and Heuermann, Holger and Wache, Franz-Josef},
  title     = {Wireless CAN without WLAN or Bluetooth},
  series = {CAN Newsletter},
  journal   = {CAN Newsletter},
  number    = {December 2018},
  pages     = {44 -- 46},
  year      = {2018},
  abstract  = {In two developed concepts, dual-mode radio enables CAN participants to be integrated wirelessly into a CAN network. Constructed from a few components, a protocol-free, real-time transmission and thus transparent integration into CAN is provided.},
  language  = {en}
}
@techreport{ViethHammerMaier2005,
  type      = {Working Paper},
  author    = {Vieth, Matthias and Hammer, A. and Maier, F.},
  title     = {A critical analysis of the co-plot method},
  series = {International University in Germany, School of Business Administration / Working paper},
  journal   = {International University in Germany, School of Business Administration / Working paper},
  number    = {32},
  publisher = {School of Business Administration, Intern. Univ. in Germany},
  address   = {Bruchsal},
  pages     = {22 Bl{\"a}tter},
  year      = {2005},
  language  = {en}
}
@inproceedings{BehbahaniRibleMoulinecetal.2015,
  author    = {Behbahani, Mehdi and Rible, Sebastian and Moulinec, Charles and Fournier, Yvan and Nicolai, Mike and Crosetto, Paolo},
  title     = {Simulation of the FDA Centrifugal Blood Pump Using High Performance Computing},
  series = {World Academy of Science, Engineering and Technology International Journal of Mechanical and Mechatronics Engineering},
  volume    = {9},
  booktitle = {World Academy of Science, Engineering and Technology International Journal of Mechanical and Mechatronics Engineering},
  number    = {5},
  year      = {2015},
  language  = {en}
}
@inproceedings{Behbahani2014,
  author    = {Behbahani, Mehdi},
  title     = {An Experimental Study of Thrombocyte Reactions in Response to Biomaterial Surfaces and Varying Shear Stress},
  series = {Proceedings of the International Conference on Biomedical Engineering and Systems Prague, Czech Republic, August 14-15, 2014},
  booktitle = {Proceedings of the International Conference on Biomedical Engineering and Systems Prague, Czech Republic, August 14-15, 2014},
  pages     = {Paper 125},
  year      = {2014},
  language  = {en}
}
@inproceedings{FingerBraunBil2018,
  author    = {Finger, Felix and Braun, Carsten and Bil, Cees},
  title     = {An Initial Sizing Methodology for Hybrid-Electric Light Aircraft},
  series = {AIAA AVIATION Forum 2018 Aviation Technology, Integration, and Operations Conference, Atlanta, Georgia, June 25 - 29, 2018},
  booktitle = {AIAA AVIATION Forum 2018 Aviation Technology, Integration, and Operations Conference, Atlanta, Georgia, June 25 - 29, 2018},
  doi       = {10.2514/6.2018-4229},
  year      = {2018},
  language  = {en}
}
@inproceedings{FingerBraunBil2017,
  author    = {Finger, Felix and Braun, Carsten and Bil, Cees},
  title     = {A Review of Configuration Design for Distributed Propulsion Transitioning VTOL Aircraft},
  series = {Asia-Pacific International Symposium on Aerospace Technology 2017, APISAT 2017, Seoul, Korea},
  booktitle = {Asia-Pacific International Symposium on Aerospace Technology 2017, APISAT 2017, Seoul, Korea},
  pages     = {15 Seiten},
  year      = {2017},
  language  = {en}
}
@inproceedings{FingerBraunBil2017,
  author    = {Finger, Felix and Braun, Carsten and Bil, Cees},
  title     = {The Impact of Electric Propulsion on the Performance of VTOL UAVs},
  series = {Deutscher Luft- und Raumfahrtkongress 2017, DLRK , M{\"u}nchen},
  booktitle = {Deutscher Luft- und Raumfahrtkongress 2017, DLRK , M{\"u}nchen},
  year      = {2017},
  language  = {en}
}
@inproceedings{Finger2016,
  author    = {Finger, Felix},
  title     = {Comparative Performance and Benefit Assessment of VTOL and CTOL UAVs},
  series = {Deutscher Luft- und Raumfahrtkongress (DLRK) 2016, 13.-15.9.2016},
  booktitle = {Deutscher Luft- und Raumfahrtkongress (DLRK) 2016, 13.-15.9.2016},
  pages     = {10 Seiten},
  year      = {2016},
  language  = {en}
}
@article{Tran2014,
  author    = {Tran, Duc Hung},
  title     = {Multiple corporate governance attributes and the cost of capital - Evidence from Germany},
  series = {The British Accounting Review},
  volume    = {46},
  journal   = {The British Accounting Review},
  number    = {2},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0890-8389},
  doi       = {https://doi.org/10.1016/j.bar.2014.02.003},
  pages     = {179 -- 197},
  year      = {2014},
  abstract  = {This paper investigates the extent to which corporate governance affects the cost of debt and equity capital of German exchange-listed companies. I examine corporate governance along three dimensions: financial information quality, ownership structure and board structure. The results suggest that firms with high levels of financial transparency and bonus compensations face lower cost of equity. In addition, block ownership is negatively related to firms' cost of equity when the blockholders are other firms, managers or founding-family members. Consistent with the conjecture that agency costs increase with firm size, I find significant cost of debt effects only in the largest German companies. Here, the creditors demand lower cost of debt from firms with block ownerships held by corporations or banks. My findings demonstrate that a uniform set of governance attributes is unlikely to satisfy suppliers of debt and equity capital equally.},
  language  = {en}
}
@article{SchneiderTran2015,
  author    = {Schneider, Felix and Tran, Duc Hung},
  title     = {On the relation between the fair value option and bid-ask spreads: descriptive evidence on the recognition of credit risk changes under IFRS},
  series = {Journal of Business Economics},
  volume    = {85},
  journal   = {Journal of Business Economics},
  number    = {9},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1861-8928},
  doi       = {10.1007/s11573-015-0776-2},
  pages     = {1049 -- 1081},
  year      = {2015},
  language  = {en}
}
@article{BalakirskiKotliarPaulyetal.2018,
  author    = {Balakirski, Galina and Kotliar, Konstantin and Pauly, Karolin J. and Krings, Laura K. and R{\"u}bben, Albert and Baron, Jens M. and Schmitt, Laurenz},
  title     = {Surgical Site Infections After Dermatologic Surgery in Immunocompromised Patients: A Single-Center Experience},
  series = {Dermatologic Surgery},
  journal   = {Dermatologic Surgery},
  number    = {44 (12)},
  publisher = {Wolters Kluwer},
  doi       = {10.1097/DSS.0000000000001615},
  pages     = {1525 -- 1536},
  year      = {2018},
  abstract  = {BACKGROUND Immunosuppression is often considered as an indication for antibiotic prophylaxis to prevent surgical site infections (SSI) while performing skin surgery. However, the data on the risk of developing SSI after dermatologic surgery in immunosuppressed patients are limited. PATIENTS AND METHODS All patients of the Department of Dermatology and Allergology at the University Hospital of RWTH Aachen in Aachen, Germany, who underwent hospitalization for a dermatologic surgery between June 2016 and January 2017 (6 months), were followed up after surgery until completion of the wound healing process. The follow-up addressed the occurrence of SSI and the need for systemic antibiotics after the operative procedure. Immunocompromised patients were compared with immunocompetent patients. The investigation was conducted as a retrospective analysis of patient records. RESULTS The authors performed 284 dermatologic surgeries in 177 patients. Nineteen percent (54/284) of the skin surgery was performed on immunocompromised patients. The most common indications for surgical treatment were nonmelanoma skin cancer and malignant melanomas. Surgical site infections occurred in 6.7\% (19/284) of the cases. In 95\% (18/19), systemic antibiotic treatment was needed. Twenty-one percent of all SSI (4/19) were seen in immunosuppressed patients. CONCLUSION According to the authors' data, immunosuppression does not represent a significant risk factor for SSI after dermatologic surgery. However, larger prospective studies are needed to make specific recommendations on the use of antibiotic prophylaxis while performing skin surgery in these patients. The available data on complications after dermatologic surgery have improved over the past years. Particularly, additional risk factors have been identified for surgical site infections (SSI). Purulent surgical sites, older age, involvement of head, neck, and acral regions, and also the involvement of less experienced surgeons have been reported to increase the risk of the SSI after dermatologic surgeries.1 In general, the incidence of SSI after skin surgery is considered to be low.1,2 However, antibiotics in dermatologic surgeries, especially in the perioperative setting, seem to be overused,3,4 particularly regarding developing antibiotic resistances and side effects. Immunosuppression has been recommended to be taken into consideration as an additional indication for antibiotic prophylaxis to prevent SSI after skin surgery in special cases.5,6 However, these recommendations do not specify the exact dermatologic surgeries, and were not specifically developed for dermatologic surgery patients and treatments, but adopted from other surgical fields.6 According to the survey conducted on American College of Mohs Surgery members in 2012, 13\% to 29\% of the surgeons administered antibiotic prophylaxis to immunocompromised patients to prevent SSI while performing dermatologic surgery on noninfected skin,3 although this was not recommended by Journal of the American Academy of Dermatology Advisory Statement. Indeed, the data on the risk of developing SSI after dermatologic surgery in immunosuppressed patients are limited. However, it is possible that due to the insufficient evidence on the risk of SSI occurrence in this patient group, dermatologic surgeons tend to overuse perioperative antibiotic prophylaxis. To make specific recommendations on the use of antibiotic prophylaxis in immunosuppressed patients in the field of skin surgery, more information about the incidence of SSI after dermatologic surgery in these patients is needed. The aim of this study was to fill this data gap by investigating whether there is an increased risk of SSI after skin surgery in immunocompromised patients compared with immunocompetent patients.},
  language  = {en}
}
@inproceedings{StopforthDavrajhFerrein2017,
  author    = {Stopforth, Riaan and Davrajh, Shaniel and Ferrein, Alexander},
  title     = {Design considerations of the duo fugam dual rotor UAV},
  series = {2017 Pattern Recognition Association of South Africa and Robotics and Mechatronics (PRASA-RobMech)},
  booktitle = {2017 Pattern Recognition Association of South Africa and Robotics and Mechatronics (PRASA-RobMech)},
  isbn      = {978-1-5386-2314-5},
  doi       = {10.1109/RoboMech.2017.8261115},
  pages     = {7 -- 13},
  year      = {2017},
  language  = {en}
}
@inproceedings{FateriGebhardtRenftle2015,
  author    = {Fateri, Miranda and Gebhardt, Andreas and Renftle, Georg},
  title     = {Additive manufacturing of drainage segments for cooling system of crucible melting furnaces},
  series = {Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials II, International Symposium on Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials, ICACC 15, 39th International Conference on Advanced Ceramics and Composites, Daytona Beach, FL, US, Jan 25-30, 2015},
  booktitle = {Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials II, International Symposium on Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials, ICACC 15, 39th International Conference on Advanced Ceramics and Composites, Daytona Beach, FL, US, Jan 25-30, 2015},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {0196-6219},
  doi       = {10.1002/9781119211662.ch14},
  pages     = {123 -- 131},
  year      = {2015},
  language  = {en}
}
@article{TekinAshikagaHorikawaetal.2018,
  author    = {Tekin, Nurettin and Ashikaga, Mitsugu and Horikawa, Atsushi and Funke, Harald},
  title     = {Enhancement of fuel flexibility of industrial gas turbines by development of innovative hydrogen combustion systems},
  series = {Gas for energy},
  journal   = {Gas for energy},
  number    = {2},
  publisher = {Vulkan-Verlag},
  address   = {Essen},
  pages     = {4},
  year      = {2018},
  abstract  = {For fuel flexibility enhancement hydrogen represents a possible alternative gas turbine fuel within future low emission power generation, in case of hydrogen production by the use of renewable energy sources such as wind energy or biomass. Kawasaki Heavy Industries, Ltd. (KHI) has research and development projects for future hydrogen society; production of hydrogen gas, refinement and liquefaction for transportation and storage, and utilization with gas turbine / gas engine for the generation of electricity. In the development of hydrogen gas turbines, a key technology is the stable and low NOx hydrogen combustion, especially Dry Low Emission (DLE) or Dry Low NOx (DLN) hydrogen combustion. Due to the large difference in the physical properties of hydrogen compared to other fuels such as natural gas, well established gas turbine combustion systems cannot be directly applied for DLE hydrogen combustion. Thus, the development of DLE hydrogen combustion technologies is an essential and challenging task for the future of hydrogen fueled gas turbines. The DLE Micro-Mix combustion principle for hydrogen fuel has been in development for many years to significantly reduce NOx emissions. This combustion principle is based on cross-flow mixing of air and gaseous hydrogen which reacts in multiple miniaturized "diffusion-type" flames. The major advantages of this combustion principle are the inherent safety against flashback and the low NOx-emissions due to a very short residence time of the reactants in the flame region of the micro-flames.},
  language  = {en}
}
@article{GoettenFingerHavermannetal.2018,
  author    = {G{\"o}tten, Falk and Finger, Felix and Havermann, Marc and Braun, Carsten and Gomez, Francisco and Bill, C.},
  title     = {On the flight performance impact of landing gear drag reduction methods for unmanned air vehicles},
  series = {Deutscher Luft- und Raumfahrtkongress 2018},
  journal   = {Deutscher Luft- und Raumfahrtkongress 2018},
  publisher = {DGLR},
  address   = {Bonn},
  doi       = {10.25967/480058},
  pages     = {11 S.},
  year      = {2018},
  abstract  = {The flight performance impact of three different landing gear configurations on a small, fixed-wing UAV is analyzed with a combination of RANS CFD calculations and an incremental flight performance algorithm. A standard fixed landing gear configuration is taken as a baseline, while the influence of retracting the landing gear or applying streamlined fairings is investigated. A retraction leads to a significant parasite drag reduction, while also fairings promise large savings. The increase in lift-to-drag ratio is reduced at high lift coefficients due to the influence of induced drag. All configurations are tested on three different design missions with an incremental flight performance algorithm. A trade-off study is performed using the retracted or faired landing gear's weight increase as a variable. The analysis reveals only small mission performance gains as the aerodynamic improvements are negated by weight penalties. A new workflow for decision-making is presented that allows to estimate if a change in landing gear configuration is beneficial for a small UAV.},
  language  = {en}
}
@inproceedings{LudowicyRingsFingeretal.2018,
  author    = {Ludowicy, Jonas and Rings, Ren{\´e} and Finger, Felix and Braun, Carsten},
  title     = {Sizing Studies of Light Aircraft with Parallel Hybrid Propulsion Systems},
  series = {Deutscher Luft- und Raumfahrtkongress 2018},
  booktitle = {Deutscher Luft- und Raumfahrtkongress 2018},
  doi       = {10.25967/480227},
  pages     = {15 S.},
  year      = {2018},
  language  = {en}
}
@inproceedings{FingerGoettenBraun2018,
  author    = {Finger, Felix and G{\"o}tten, Falk and Braun, Carsten},
  title     = {Initial Sizing for a Family of Hybrid-Electric VTOL General Aviation Aircraft},
  series = {67. Deutscher Luft- und Raumfahrtkongress 2018},
  booktitle = {67. Deutscher Luft- und Raumfahrtkongress 2018},
  pages     = {14 S.},
  year      = {2018},
  language  = {en}
}
@inproceedings{LudowicyRingsFingeretal.2018,
  author    = {Ludowicy, Jonas and Rings, Ren{\´e} and Finger, Felix and Braun, Carsten},
  title     = {Sizing Studies of Light Aircraft with Serial Hybrid Propulsion Systems},
  series = {Luft- und Raumfahrt - Digitalisierung und Vernetzung : Deutscher Luft- und Raumfahrtkongress 2018. 4. - 6. September 2018 - Friedrichshafen},
  booktitle = {Luft- und Raumfahrt - Digitalisierung und Vernetzung : Deutscher Luft- und Raumfahrtkongress 2018. 4. - 6. September 2018 - Friedrichshafen},
  pages     = {11 S.},
  year      = {2018},
  language  = {en}
}
@article{JayaramanMummidisettyLoeschetal.2019,
  author    = {Jayaraman, Chandrasekaran and Mummidisetty, Chaitanya Krishna and Loesch, Alexandra and Kaur, Sandi and Hoppe-Ludwig, Shenan and Staat, Manfred and Jayaraman, Arun},
  title     = {Postural and metabolic benefits of using a forearm support walker in older adults with impairments},
  series = {Archives of Physical Medicine and Rehabilitation},
  volume    = {Volume 100},
  journal   = {Archives of Physical Medicine and Rehabilitation},
  number    = {Issue 4},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0003-9993},
  doi       = {10.1016/j.apmr.2018.10.001},
  pages     = {638 -- 647},
  year      = {2019},
  language  = {en}
}
@article{AlbannaKotliarLuekeetal.2018,
  author    = {Albanna, Walid and Kotliar, Konstantin and L{\"u}ke, Jan Niklas and Alpdogan, Serdar and Conzen, Catharina and Lindauer, Ute and Clusmann, Hans and Hescheler, J{\"u}rgen and Vilser, Walthard and Schneider, Toni and Schubert, Gerrit Alexander},
  title     = {Non-invasive evaluation of neurovascular coupling in the murine retina by dynamic retinal vessel analysis},
  series = {Plos one},
  volume    = {13},
  journal   = {Plos one},
  number    = {10},
  publisher = {PLOS},
  address   = {San Francisco},
  doi       = {10.1371/journal.pone.0204689},
  pages     = {e0204689},
  year      = {2018},
  abstract  = {Background Impairment of neurovascular coupling (NVC) was recently reported in the context of subarachnoid hemorrhage and may correlate with disease severity and outcome. However, previous techniques to evaluate NVC required invasive procedures. Retinal vessels may represent an alternative option for non-invasive assessment of NVC. Methods A prototype of an adapted retinal vessel analyzer was used to assess retinal vessel diameter in mice. Dynamic vessel analysis (DVA) included an application of monochromatic flicker light impulses in predefined frequencies for evaluating NVC. All retinae were harvested after DVA and electroretinograms were performed. Results A total of 104 retinal scans were conducted in 21 male mice (90 scans). Quantitative arterial recordings were feasible only in a minority of animals, showing an emphasized reaction to flicker light impulses (8 mice; 14 scans). A characteristic venous response to flicker light, however, could observed in the majority of animals. Repeated measurements resulted in a significant decrease of baseline venous diameter (7 mice; 7 scans, p < 0.05). Ex-vivo electroretinograms, performed after in-vivo DVA, demonstrated a significant reduction of transretinal signaling in animals with repeated DVA (n = 6, p < 0.001). Conclusions To the best of our knowledge, this is the first non-invasive study assessing murine retinal vessel response to flicker light with characteristic changes in NVC. The imaging system can be used for basic research and enables the investigation of retinal vessel dimension and function in control mice and genetically modified animals.},
  language  = {en}
}
@inproceedings{ValeroVogelSchmidtetal.2018,
  author    = {Valero, Daniel and Vogel, Jochen and Schmidt, Daniel and Bung, Daniel Bernhard},
  title     = {Three-dimensional flow structure inside the cavity of a non-aerated stepped chute},
  series = {7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May},
  booktitle = {7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May},
  isbn      = {978-0-692-13277-7},
  doi       = {10.15142/T3GH17},
  pages     = {12 Seiten},
  year      = {2018},
  language  = {en}
}
@inproceedings{BungTullis2018,
  author    = {Bung, Daniel Bernhard and Tullis, Blake},
  title     = {Hydraulic Structures - ISHS2018 in Perspective},
  series = {7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May},
  booktitle = {7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May},
  isbn      = {978-0-692-13277-7},
  doi       = {10.15142/T3WH2B},
  pages     = {9 seiten},
  year      = {2018},
  language  = {en}
}
@incollection{YoshinobuKrauseMiyamotoetal.2018,
  author    = {Yoshinobu, Tatsuo and Krause, Steffi and Miyamoto, Ko-ichiro and Werner, Frederik and Poghossian, Arshak and Wagner, Torsten and Sch{\"o}ning, Michael Josef},
  title     = {(Bio-)chemical Sensing and Imaging by LAPS and SPIM},
  series = {Label-free biosensing: advanced materials, devices and applications},
  booktitle = {Label-free biosensing: advanced materials, devices and applications},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-75219-8},
  pages     = {103 -- 132},
  year      = {2018},
  abstract  = {The light-addressable potentiometric sensor (LAPS) and scanning photo-induced impedance microscopy (SPIM) are two closely related methods to visualise the distributions of chemical species and impedance, respectively, at the interface between the sensing surface and the sample solution. They both have the same field-effect structure based on a semiconductor, which allows spatially resolved and label-free measurement of chemical species and impedance in the form of a photocurrent signal generated by a scanning light beam. In this article, the principles and various operation modes of LAPS and SPIM, functionalisation of the sensing surface for measuring various species, LAPS-based chemical imaging and high-resolution sensors based on silicon-on-sapphire substrates are described and discussed, focusing on their technical details and prospective applications.},
  language  = {en}
}
@book{SchoeningPoghossian2018,
  author    = {Sch{\"o}ning, Michael Josef and Poghossian, Arshak},
  title     = {Label-free biosensing: advanced materials, devices and applications},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-75219-8},
  pages     = {xii, 480 Seiten ; Illustrationen, Diagramme},
  year      = {2018},
  language  = {en}
}
@article{RodriguesMoraisNordietal.2018,
  author    = {Rodrigues, Raul T. and Morais, Paulo V. and Nordi, Cristina S. F. and Sch{\"o}ning, Michael Josef and Siqueira Jr., Jos{\´e} R. and Caseli, Luciano},
  title     = {Carbon Nanotubes and Algal Polysaccharides To Enhance the Enzymatic Properties of Urease in Lipid Langmuir-Blodgett Films},
  series = {Langmuir},
  volume    = {34},
  journal   = {Langmuir},
  number    = {9},
  publisher = {ACS Publications},
  address   = {Washington, DC},
  issn      = {1520-5827},
  doi       = {10.1021/acs.langmuir.7b04317},
  pages     = {3082 -- 3093},
  year      = {2018},
  abstract  = {Algal polysaccharides (extracellular polysaccharides) and carbon nanotubes (CNTs) were adsorbed on dioctadecyldimethylammonium bromide Langmuir monolayers to serve as a matrix for the incorporation of urease. The physicochemical properties of the supramolecular system as a monolayer at the air-water interface were investigated by surface pressure-area isotherms, surface potential-area isotherms, interfacial shear rheology, vibrational spectroscopy, and Brewster angle microscopy. The floating monolayers were transferred to hydrophilic solid supports, quartz, mica, or capacitive electrolyte-insulator-semiconductor (EIS) devices, through the Langmuir-Blodgett (LB) technique, forming mixed films, which were investigated by quartz crystal microbalance, fluorescence spectroscopy, and field emission gun scanning electron microscopy. The enzyme activity was studied with UV-vis spectroscopy, and the feasibility of the thin film as a urea sensor was essayed in an EIS sensor device. The presence of CNT in the enzyme-lipid LB film not only tuned the catalytic activity of urease but also helped to conserve its enzyme activity. Viability as a urease sensor was demonstrated with capacitance-voltage and constant capacitance measurements, exhibiting regular and distinctive output signals over all concentrations used in this work. These results are related to the synergism between the compounds on the active layer, leading to a surface morphology that allowed fast analyte diffusion owing to an adequate molecular accommodation, which also preserved the urease activity. This work demonstrates the feasibility of employing LB films composed of lipids, CNT, algal polysaccharides, and enzymes as EIS devices for biosensing applications.},
  language  = {en}
}
@article{RoehlenPilasDahmenetal.2018,
  author    = {R{\"o}hlen, Desiree and Pilas, Johanna and Dahmen, Markus and Keusgen, Michael and Selmer, Thorsten and Sch{\"o}ning, Michael Josef},
  title     = {Toward a Hybrid Biosensor System for Analysis of Organic and Volatile Fatty Acids in Fermentation Processes},
  series = {Frontiers in Chemistry},
  journal   = {Frontiers in Chemistry},
  number    = {6},
  publisher = {Frontiers},
  address   = {Lausanne},
  doi       = {10.3389/fchem.2018.00284},
  pages     = {Artikel 284},
  year      = {2018},
  abstract  = {Monitoring of organic acids (OA) and volatile fatty acids (VFA) is crucial for the control of anaerobic digestion. In case of unstable process conditions, an accumulation of these intermediates occurs. In the present work, two different enzyme-based biosensor arrays are combined and presented for facile electrochemical determination of several process-relevant analytes. Each biosensor utilizes a platinum sensor chip (14 × 14 mm²) with five individual working electrodes. The OA biosensor enables simultaneous measurement of ethanol, formate, d- and l-lactate, based on a bi-enzymatic detection principle. The second VFA biosensor provides an amperometric platform for quantification of acetate and propionate, mediated by oxidation of hydrogen peroxide. The cross-sensitivity of both biosensors toward potential interferents, typically present in fermentation samples, was investigated. The potential for practical application in complex media was successfully demonstrated in spiked sludge samples collected from three different biogas plants. Thereby, the results obtained by both of the biosensors were in good agreement to the applied reference measurements by photometry and gas chromatography, respectively. The proposed hybrid biosensor system was also used for long-term monitoring of a lab-scale biogas reactor (0.01 m³) for a period of 2 months. In combination with typically monitored parameters, such as gas quality, pH and FOS/TAC (volatile organic acids/total anorganic carbonate), the amperometric measurements of OA and VFA concentration could enhance the understanding of ongoing fermentation processes.},
  language  = {en}
}
@article{MuellerBeckersMussmannetal.2018,
  author    = {M{\"u}ller, Janina and Beckers, Mario and Mußmann, Nina and Bongaerts, Johannes and B{\"u}chs, Jochen},
  title     = {Elucidation of auxotrophic deficiencies of Bacillus pumilus DSM 18097 to develop a defined minimal medium},
  series = {Microbial Cell Factories},
  volume    = {17},
  journal   = {Microbial Cell Factories},
  number    = {1},
  publisher = {BioMed Central},
  issn      = {1475-2859},
  doi       = {10.1186/s12934-018-0956-1},
  pages     = {Article No. 106},
  year      = {2018},
  abstract  = {Background Culture media containing complex compounds like yeast extract or peptone show numerous disadvantages. The chemical composition of the complex compounds is prone to significant variations from batch to batch and quality control is difficult. Therefore, the use of chemically defined media receives more and more attention in commercial fermentations. This concept results in better reproducibility, it simplifies downstream processing of secreted products and enable rapid scale-up. Culturing bacteria with unknown auxotrophies in chemically defined media is challenging and often not possible without an extensive trial-and-error approach. In this study, a respiration activity monitoring system for shake flasks and its recent version for microtiter plates were used to clarify unknown auxotrophic deficiencies in the model organism Bacillus pumilus DSM 18097. Results Bacillus pumilus DSM 18097 was unable to grow in a mineral medium without the addition of complex compounds. Therefore, a rich chemically defined minimal medium was tested containing basically all vitamins, amino acids and nucleobases, which are essential ingredients of complex components. The strain was successfully cultivated in this medium. By monitoring of the respiration activity, nutrients were supplemented to and omitted from the rich chemically defined medium in a rational way, thus enabling a systematic and fast determination of the auxotrophic deficiencies. Experiments have shown that the investigated strain requires amino acids, especially cysteine or histidine and the vitamin biotin for growth. Conclusions The introduced method allows an efficient and rapid identification of unknown auxotrophic deficiencies and can be used to develop a simple chemically defined tailor-made medium. B. pumilus DSM 18097 was chosen as a model organism to demonstrate the method. However, the method is generally suitable for a wide range of microorganisms. By combining a systematic combinatorial approach based on monitoring the respiration activity with cultivation in microtiter plates, high throughput experiments with high information content can be conducted. This approach facilitates media development, strain characterization and cultivation of fastidious microorganisms in chemically defined minimal media while simultaneously reducing the experimental effort.},
  language  = {en}
}
@article{LapitanRogatkinPersheyevetal.2018,
  author    = {Lapitan, Denis G. and Rogatkin, Dmitrii A. and Persheyev, Sydulla K. and Kotliar, Konstantin},
  title     = {False spectra formation in the differential two-channel scheme of the laser Doppler flowmeter},
  series = {Biomedizinische Technik},
  volume    = {63},
  journal   = {Biomedizinische Technik},
  number    = {4},
  publisher = {De Gruyter},
  address   = {Berlin},
  issn      = {0013-5585},
  doi       = {10.1515/bmt-2017-0060},
  pages     = {439 -- 444},
  year      = {2018},
  abstract  = {Noise in the differential two-channel scheme of a classic laser Doppler flowmetry (LDF) instrument was studied. Formation of false spectral components in the output signal due to beating of electrical signals in the differential amplifier was found out. The improved block-diagram of the flowmeter was developed allowing to reduce the noise.},
  language  = {en}
}
@article{EckertRudolphGuoetal.2018,
  author    = {Eckert, Alexander and Rudolph, Tobias and Guo, Jiaqi and Mang, Thomas and Walther, Andreas},
  title     = {Exceptionally Ductile and Tough Biomimetic Artificial Nacre with Gas Barrier Function},
  series = {Advanced Materials},
  volume    = {30},
  journal   = {Advanced Materials},
  number    = {32},
  publisher = {Wiley-VCH},
  doi       = {10.1002/adma.201802477},
  pages     = {Article number 1802477},
  year      = {2018},
  abstract  = {Synthetic mimics of natural high-performance structural materials have shown great and partly unforeseen opportunities for the design of multifunctional materials. For nacre-mimetic nanocomposites, it has remained extraordinarily challenging to make ductile materials with high stretchability at high fractions of reinforcements, which is however of crucial importance for flexible barrier materials. Here, highly ductile and tough nacre-mimetic nanocomposites are presented, by implementing weak, but many hydrogen bonds in a ternary nacre-mimetic system consisting of two polymers (poly(vinyl amine) and poly(vinyl alcohol)) and natural nanoclay (montmorillonite) to provide efficient energy dissipation and slippage at high nanoclay content (50 wt\%). Tailored interactions enable exceptional combinations of ductility (close to 50\% strain) and toughness (up to 27.5 MJ m⁻³). Extensive stress whitening, a clear sign of high internal dynamics at high internal cohesion, can be observed during mechanical deformation, and the materials can be folded like paper into origami planes without fracture. Overall, the new levels of ductility and toughness are unprecedented in highly reinforced bioinspired nanocomposites and are of critical importance to future applications, e.g., as barrier materials needed for encapsulation and as a printing substrate for flexible organic electronics.},
  language  = {en}
}
@article{BungValero2018,
  author    = {Bung, Daniel Bernhard and Valero, Daniel},
  title     = {Re-aeration on stepped spillways with special consideration of entrained and entrapped air},
  series = {Geosciences},
  volume    = {8},
  journal   = {Geosciences},
  number    = {9},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2076-3263},
  pages     = {Article number 333},
  year      = {2018},
  abstract  = {As with most high-velocity free-surface flows, stepped spillway flows become self-aerated when the drop height exceeds a critical value. Due to the step-induced macro-roughness, the flow field becomes more turbulent than on a similar smooth-invert chute. For this reason, cascades are oftentimes used as re-aeration structures in wastewater treatment. However, for stepped spillways as flood release structures downstream of deoxygenated reservoirs, gas transfer is also of crucial significance to meet ecological requirements. Prediction of mass transfer velocities becomes challenging, as the flow regime differs from typical previously studied flow conditions. In this paper, detailed air-water flow measurements are conducted on stepped spillway models with different geometry, with the aim to estimate the specific air-water interface. Re-aeration performances are determined by applying the absorption method. In contrast to earlier studies, the aerated water body is considered a continuous mixture up to a level where 75\% air concentration is reached. Above this level, a homogenous surface wave field is considered, which is found to significantly affect the total air-water interface available for mass transfer. Geometrical characteristics of these surface waves are obtained from high-speed camera investigations. The results show that both the mean air concentration and the mean flow velocity have influence on the mass transfer. Finally, an empirical relationship for the mass transfer on stepped spillway models is proposed.},
  language  = {en}
}
@article{MiyamotoSekiSutoetal.2018,
  author    = {Miyamoto, Koichiro and Seki, Kosuke and Suto, Takeyuki and Werner, Frederik and Wagner, Torsten and Sch{\"o}ning, Michael Josef and Yoshinobu, Tatsuo},
  title     = {Improved spatial resolution of the chemical imaging sensor with a hybrid illumination that suppresses lateral diffusion of photocarriers},
  series = {Sensor and Actuators B: Chemical},
  volume    = {273},
  journal   = {Sensor and Actuators B: Chemical},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0925-4005},
  doi       = {10.1016/j.snb.2018.07.016},
  pages     = {1328 -- 1333},
  year      = {2018},
  abstract  = {The chemical imaging sensor is a semiconductor-based chemical sensor capable of visualizing pH and ion distributions. The spatial resolution depends on the lateral diffusion of photocarriers generated by illumination of the semiconductor substrate. In this study, two types of optical setups, one based on a bundle of optical fibers and the other based on a binocular tube head, were developed to project a hybrid illumination of a modulated light beam and a ring-shaped constant illumination onto the sensor plate. An improved spatial resolution was realized by the ring-shaped constant illumination, which suppressed lateral diffusion of photocarriers by enhanced recombination due to the increased carrier concentration.},
  language  = {en}
}
@article{RittwegerAlbrachtFluecketal.2018,
  author    = {Rittweger, J{\"o}rn and Albracht, Kirsten and Fl{\"u}ck, Martin and Ruoss, Severin and Brocca, Lorenza and Longa, Emanuela and Moriggi, Manuela and Seynnes, Olivier and Di Giulio, Irene and Tenori, Leonardo and Vignoli, Alessia and Capri, Miriam and Gelfi, Cecilia and Luchinat, Claudio and Franceschi, Claudio and Bottinelli, Roberto and Cerretelli, Paolo and Narici, Marco},
  title     = {Sarcolab pilot study into skeletal muscle's adaptation to longterm spaceflight},
  series = {npj Microgravity},
  volume    = {4},
  journal   = {npj Microgravity},
  number    = {1},
  publisher = {Nature Portfolio},
  issn      = {2373-8065},
  doi       = {10.1038/s41526-018-0052-1},
  pages     = {1 -- 9},
  year      = {2018},
  language  = {en}
}
@inproceedings{BeckerEggertWinkelmannetal.2011,
  author    = {Becker, J{\"o}rg and Eggert, Mathias and Winkelmann, Axel and Knackstedt, Ralf},
  title     = {Towards a Contingency Theory based Model of the Influence of Regulation on MIS},
  series = {Proceedings of the Seventeenth Americas Conference on Information Systems, Detroit, Michigan August 4th -7 th 2011},
  booktitle = {Proceedings of the Seventeenth Americas Conference on Information Systems, Detroit, Michigan August 4th -7 th 2011},
  year      = {2011},
  language  = {en}
}
@inproceedings{BeckerBergenerDelfmannetal.2011,
  author    = {Becker, J{\"o}rg and Bergener, Philipp and Delfmann, Patrick and Eggert, Mathias and Weiss, Burkhard},
  title     = {Supporting Business Process Compliance in Financial Institutions - A Model-Driven Approach},
  series = {Proceedings of the 10th International Conference on Wirtschaftsinformatik : 16 - 18 February 2011, Zurich, Switzerland},
  booktitle = {Proceedings of the 10th International Conference on Wirtschaftsinformatik : 16 - 18 February 2011, Zurich, Switzerland},
  pages     = {355 -- 364},
  year      = {2011},
  language  = {en}
}
@inproceedings{BeckerBergenerBreukeretal.2011,
  author    = {Becker, J{\"o}rg and Bergener, Philipp and Breuker, Dominic and Delfmann, Patrick and Eggert, Mathias},
  title     = {An Efficient Business Process Compliance Checking Approach},
  series = {Governance and Sustainability in Information Systems. Managing the Transfer and Diffusion of IT : IFIP WG 8.6 International Working Conference, Hamburg, Germany, September 22-24, 2011. Proceedings},
  booktitle = {Governance and Sustainability in Information Systems. Managing the Transfer and Diffusion of IT : IFIP WG 8.6 International Working Conference, Hamburg, Germany, September 22-24, 2011. Proceedings},
  publisher = {Springer},
  address   = {Berlin, Heidelberg},
  doi       = {10.1007/978-3-642-24148-2_19},
  pages     = {282 -- 287},
  year      = {2011},
  language  = {en}
}
@inproceedings{RosemannEggertVoigtetal.2012,
  author    = {Rosemann, Michael and Eggert, Mathias and Voigt, Matthias and Beverungen, Daniel},
  title     = {Leveraging Social Network Data for Analytical CRM Strategies - The Introduction of Social BI.},
  series = {ECIS 2012 Proceedings},
  booktitle = {ECIS 2012 Proceedings},
  pages     = {12 S.},
  year      = {2012},
  language  = {en}
}
@inproceedings{KnackstedtEggertHeddieretal.2013,
  author    = {Knackstedt, Ralf and Eggert, Mathias and Heddier, Marcel and Chasin, Friedrich and Becker, J{\"o}rg},
  title     = {The Relationship of IS and Law - Insights into the German Online Car Registration Case},
  series = {ECIS 2013 Completed Research. 18. Proceedings of the 21st European Conference on Information Systems},
  booktitle = {ECIS 2013 Completed Research. 18. Proceedings of the 21st European Conference on Information Systems},
  pages     = {13 S.},
  year      = {2013},
  language  = {en}
}
@inproceedings{KnackstedtEggertFleischer2012,
  author    = {Knackstedt, Ralf and Eggert, Mathias and Fleischer, Stefan},
  title     = {The Legal Perspective on Business to Government Reporting - A Conceptual Modeling Approach and Its Application in the Financial Sector},
  series = {45th Hawaii International Conference on System Sciences 2012},
  booktitle = {45th Hawaii International Conference on System Sciences 2012},
  isbn      = {978-0-7695-4525-7},
  doi       = {10.1109/HICSS.2012.576},
  pages     = {2309 -- 2318},
  year      = {2012},
  language  = {en}
}
@inproceedings{BeckerEggertSchwittay2012,
  author    = {Becker, J{\"o}rg and Eggert, Mathias and Schwittay, Sebastian},
  title     = {How to Evaluate the Practical Relevance of Business Process Compliance Checking Approaches?},
  series = {Multikonferenz Wirtschaftsinformatik 2012 - Tagungsband der MKWI 2012},
  booktitle = {Multikonferenz Wirtschaftsinformatik 2012 - Tagungsband der MKWI 2012},
  editor    = {Mattfeld, Dirk Christian},
  publisher = {Institut f{\"u}r Wirtschaftsinformatik},
  address   = {Braunschweig},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:084-13011115376},
  pages     = {849 -- 862},
  year      = {2012},
  language  = {en}
}
@inproceedings{BeckerEggertHeddieretal.2012,
  author    = {Becker, J{\"o}rg and Eggert, Mathias and Heddier, Marcel and Knackstedt, Ralf},
  title     = {Merging Conceptual Modeling and Law for Legally Compliant Information Systems Design - A Framework-Based Research Agenda},
  series = {45th Hawaii International Conference on System Sciences 2012},
  booktitle = {45th Hawaii International Conference on System Sciences 2012},
  isbn      = {978-0-7695-4525-7},
  doi       = {10.1109/HICSS.2012.428},
  pages     = {5241 -- 5248},
  year      = {2012},
  language  = {en}
}
@article{BeckerDelfmannEggertetal.2012,
  author    = {Becker, J{\"o}rg and Delfmann, Patrick and Eggert, Mathias and Schwittay, Sebastian},
  title     = {Generalizability and Applicability of Model-Based Business Process Compliance-Checking Approaches — A State-of-the-Art Analysis and Research Roadmap},
  series = {Business Research : BuR},
  volume    = {5},
  journal   = {Business Research : BuR},
  number    = {2},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {1866-8658},
  doi       = {10.1007/BF03342739},
  pages     = {221 -- 247},
  year      = {2012},
  abstract  = {With a steady increase of regulatory requirements for business processes, automation support of compliance management is a field garnering increasing attention in Information Systems research. Several approaches have been developed to support compliance checking of process models. One major challenge for such approaches is their ability to handle different modeling techniques and compliance rules in order to enable widespread adoption and application. Applying a structured literature search strategy, we reflect and discuss compliance-checking approaches in order to provide an insight into their generalizability and evaluation. The results imply that current approaches mainly focus on special modeling techniques and/or a restricted set of types of compliance rules. Most approaches abstain from real-world evaluation which raises the question of their practical applicability. Referring to the search results, we propose a roadmap for further research in model-based business process compliance checking.},
  language  = {en}
}
@inproceedings{KnackstedtEggertHeddieretal.2013,
  author    = {Knackstedt, Ralf and Eggert, Mathias and Heddier, Marcel and Chasin, Friedrich and Becker, J{\"o}rg},
  title     = {The Relationship Of Is And Law - The Perspective Of And Implications For IS Research},
  series = {ECIS 2013 Completed Research. 18},
  booktitle = {ECIS 2013 Completed Research. 18},
  pages     = {13 S.},
  year      = {2013},
  language  = {en}
}
@inproceedings{EggertWinkelmannLohmannetal.2013,
  author    = {Eggert, Mathias and Winkelmann, Axel and Lohmann, Patrick and Knackstedt, Ralf},
  title     = {The Regulatory Influence On Management Information Systems - A Contingency Perspective},
  series = {ECIS 2013 Completed Research. 9},
  booktitle = {ECIS 2013 Completed Research. 9},
  pages     = {13 S.},
  year      = {2013},
  language  = {en}
}
@inproceedings{BeckerEggertSaatetal.2013,
  author    = {Becker, J{\"o}rg and Eggert, Mathias and Saat, Jan and Dirding, Philipp},
  title     = {The Influence of Regulation on Data Warehouse Engineering - Investigating an IT Consulting Case in the Financial Service Industry},
  series = {Proceedings of the Nineteenth Americas Conference on Information Systems, Chicago, Illinois, August 15-17, 2013.},
  booktitle = {Proceedings of the Nineteenth Americas Conference on Information Systems, Chicago, Illinois, August 15-17, 2013.},
  pages     = {1 -- 8},
  year      = {2013},
  language  = {en}
}
@inproceedings{BeckerEggertBruningetal.2013,
  author    = {Becker, J{\"o}rg and Eggert, Mathias and Bruning, Dennis and Saat, Jan},
  title     = {Applicability of Business Process Model Analysis Approaches - A Case Study in Financial Services Consulting},
  series = {Wirtschaftsinformatik Proceedings 2013},
  booktitle = {Wirtschaftsinformatik Proceedings 2013},
  pages     = {1181 -- 1195},
  year      = {2013},
  language  = {en}
}