@article{YazdanbakhshSolbachBitz2012,
  author    = {Yazdanbakhsh, Pedram and Solbach, Klaus and Bitz, Andreas},
  title     = {Variable power combiner for RF mode shimming in 7-T MR imaging},
  series = {IEEE Transaction on Biomedical Engineering},
  volume    = {59},
  journal   = {IEEE Transaction on Biomedical Engineering},
  number    = {9},
  publisher = {IEEE},
  address   = {New York},
  issn      = {1558-2531},
  doi       = {10.1109/TBME.2012.2205926},
  pages     = {2549 -- 2557},
  year      = {2012},
  abstract  = {This contribution discusses the utilization of RF power in an MRI system with RF mode shimming which enables the superposition of circularly polarized modes of a transmit RF coil array driven by a Butler matrix. Since the required power for the individual modes can vary widely, mode-shimming can result in a significant underutilization of the total available RF power. A variable power combiner (VPC) is proposed to improve the power utilization: it can be realized as a reconfiguration of the MRI transmit system by the inclusion of one additional matrix network which receives the power from all transmit amplifiers at its input ports and provides any desired (combined) power distribution at its output ports by controlling the phase and amplitude of the amplifiers' input signals. The power distribution at the output ports of the VPC is then fed into the "mode" ports of the coil array Butler matrix in order to superimpose the spatial modes at the highest achievable power utilization. The VPC configuration is compared to the standard configuration of the transmit chain of our MRI system with 8 transmit channels and 16 coils. In realistic scenarios, improved power utilization was achieved from 17\% to 60\% and from 14\% to 55\% for an elliptical phantom and a region of interest in the abdomen, respectively, and an increase of the power utilization of 1 dB for a region of interest in the upper leg. In general, it is found that the VPC allows significant improvement in power utilization when the shimming solution demands only a few modes to be energized, while the technique can yield loss in power utilization in cases with many modes required at high power level.},
  language  = {en}
}
@article{YangKriechbaumerAlbrachtetal.2015,
  author    = {Yang, Peng-Fei and Kriechbaumer, Andreas and Albracht, Kirsten and Sanno, Maximilian and Ganse, Bergita and Koy, Timmo and Shang, Peng and Br{\"u}ggemann, Gert-Peter and M{\"u}ller, Lars Peter and Rittweger, J{\"o}rn},
  title     = {On the relationship between tibia torsional deformation and regional muscle contractions in habitual human exercises in vivo},
  series = {Journal of Biomechanics},
  volume    = {48},
  journal   = {Journal of Biomechanics},
  number    = {3},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0021-9290},
  doi       = {10.1016/j.jbiomech.2014.12.031},
  pages     = {456 -- 464},
  year      = {2015},
  language  = {en}
}
@article{YangKriechbaumerAlbrachtetal.2014,
  author    = {Yang, Peng-Fei and Kriechbaumer, Andreas and Albracht, Kirsten and Sanno, Maximilian and Ganse, Bergita and Koy, Timmo and Shang, Peng and br{\"u}ggemann, Gert-Peter and M{\"u}ller, Lars Peter and Rittweger, J{\"o}rn},
  title     = {A novel optical approach for assessing in vivo bone segment deformation and its application in muscle-bone relationship studies in humans},
  series = {Journal of Orthopaedic Translation},
  volume    = {2},
  journal   = {Journal of Orthopaedic Translation},
  number    = {4},
  publisher = {Elsevier},
  address   = {Singapore},
  issn      = {2214-0328},
  doi       = {10.1016/j.jot.2014.07.078},
  pages     = {238 -- 238},
  year      = {2014},
  language  = {en}
}
@inproceedings{XuSchwarteHeinoletal.1998,
  author    = {Xu, Zhanping and Schwarte, Rudolf and Heinol, Horst-Guenther and Buxbaum, Bernd and Ringbeck, Thorsten},
  title     = {Smart pixel : photonic mixer device (PMD) ; new system concept of a 3D-imaging camera-on-a-chip},
  series = {Proceedings : M2VIP '98; Nanjing, China, 10th - 12th September 1998},
  booktitle = {Proceedings : M2VIP '98; Nanjing, China, 10th - 12th September 1998},
  editor    = {Cheung, Edmund H. M.},
  address   = {Hong Kong},
  isbn      = {962-442-129-3},
  pages     = {259 -- 264},
  year      = {1998},
  language  = {en}
}
@article{XuLueMaetal.2005,
  author    = {Xu, Jung-Ming and L{\"u}, Min and Ma, Meijie and Hellwig, Angelika},
  title     = {Super connectivity of line graphs},
  series = {Information processing letters},
  volume    = {Vol. 94},
  journal   = {Information processing letters},
  number    = {Iss. 4},
  issn      = {1872-6119 (E-Journal); 0020-0190 (Print)},
  pages     = {191 -- 195},
  year      = {2005},
  language  = {en}
}
@book{Waehlisch2012,
  author    = {W{\"a}hlisch, Georg},
  title     = {Technisches Zeichnen : L{\"o}sungsvorschl{\"a}ge f{\"u}r das Selbststudium. (Berichte aus dem Maschinenbau)},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {978-3-8440-1159-3},
  pages     = {[138] S. : zahlr. Ill., graph. Darst.},
  year      = {2012},
  language  = {de}
}
@book{Waehlisch2009,
  author    = {W{\"a}hlisch, Georg},
  title     = {Technisches Zeichnen : Vorlesung und {\"U}bungen},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {978-3-8322-8044-4},
  pages     = {IV, 120, 80 S. : Ill., graph. Darst.},
  year      = {2009},
  language  = {de}
}
@inproceedings{WuttkeButenwegRosinetal.2019,
  author    = {Wuttke, Claudia and Butenweg, Christoph and Rosin, Julia and Kubalski, Thomas},
  title     = {Verbesserte seismische Nachweiskonzepte f{\"u}r Mauerwerksbauten in deutschen Erdbebengebieten},
  series = {Adam, Christoph (Hrsg.) ; Univ. Innsbruck: 16. D-A-CH Tagung Erdbebeningenieurwesen \& Baudynamik 2019 : 26. und 27. September 2019, Innsbruck},
  booktitle = {Adam, Christoph (Hrsg.) ; Univ. Innsbruck: 16. D-A-CH Tagung Erdbebeningenieurwesen \& Baudynamik 2019 : 26. und 27. September 2019, Innsbruck},
  address   = {Innsbruck},
  isbn      = {978-3-200-06454-6},
  pages     = {713 -- 722},
  year      = {2019},
  language  = {de}
}
@inproceedings{WulfhorstMerseburgTippkoetter2015,
  author    = {Wulfhorst, Helene and Merseburg, Johannes and Tippk{\"o}tter, Nils},
  title     = {Analyse von Lignocellulose mittels dynamischer Differenzkalorimetrie und Infrarot - Spektrometrie},
  series = {12. Dresdner Sensor-Symposium 2015 2015-12-07 - 2015-12-09},
  booktitle = {12. Dresdner Sensor-Symposium 2015 2015-12-07 - 2015-12-09},
  isbn      = {978-3-9813484-9-1},
  doi       = {10.5162/12dss2015/P6.2},
  pages     = {210 -- 215},
  year      = {2015},
  language  = {de}
}
@article{WulfhorstDuweMerseburgetal.2016,
  author    = {Wulfhorst, Helene and Duwe, Anna-Maria and Merseburg, Johannes and Tippk{\"o}tter, Nils},
  title     = {Compositional analysis of pretreated (beech) wood using differential scanning calorimetry and multivariate data analysis},
  series = {Tetrahedron},
  volume    = {72},
  journal   = {Tetrahedron},
  number    = {46},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.tet.2016.04.029},
  pages     = {7329 -- 7334},
  year      = {2016},
  abstract  = {The composition of plant biomass varies depending on the feedstock and pre-treatment conditions and influences its processing in biorefineries. In order to ensure optimal process conditions, the quantitative proportion of the main polymeric components of the pre-treated biomass has to be determined. Current standard procedures for biomass compositional analysis are complex, the measurements are afflicted with errors and therefore often not comparable. Hence, new powerful analytical methods are urgently required to characterize biomass. In this contribution, Differential Scanning Calorimetry (DSC) was applied in combination with multivariate data analysis (MVA) to detect the cellulose content of the plant biomass pretreated by Liquid Hot Water (LHW) and Organosolv processes under various conditions. Unlike conventional techniques, the developed analytic method enables the accurate quantification of monosaccharide content of the plant biomass without any previous sample preparation. It is easy to handle and avoids errors in sample preparation.},
  language  = {en}
}
@misc{WulfhorstMerseburgTippkoetter2016,
  author    = {Wulfhorst, H. and Merseburg, J. and Tippk{\"o}tter, Nils},
  title     = {Batteriekomponenten aus nachwachsenden Rohstoffen},
  series = {Chemie Ingenieur Technik},
  volume    = {88},
  journal   = {Chemie Ingenieur Technik},
  number    = {9},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0009-286X},
  doi       = {10.1002/cite.201650333},
  pages     = {1234 -- 1235},
  year      = {2016},
  abstract  = {In diesem Beitrag geht es um die Integration von Stoffstr{\"o}men einer Lignocellulose-Bioraffinerie in Verfahren zur Batterieherstellung. Pflanzliche Reststoffe aus der Biokraftstoffherstellung wie Lignin sollen zur Herstellung neuer Batteriematerialien verwendet werden. Hierbei wird das Lignin als Matrix f{\"u}r die vorgraphitischen C-haltigen Einlagerungsverbindungen in den Elektroden genutzt. Die Si-C-Komposite werden durch das Einbetten von Si in eine Ligninmatrix mit anschließender Carbonisierung hergestellt. Das Lignin hierf{\"u}r wird durch die sequentielle hydrothermale Vorbehandlung von Buchenholz bei variablen Bedingungen gewonnen und mit Si-Nanopartikel sowie als Referenz ohne Si-Nanopartikel gef{\"a}llt. Die Ergebnisse zeigen, dass die sequenzielle Vorbehandlung h{\"o}here Ausbeuten im Vergleich zum LHW- oder Organosolv-Aufschluss liefert. Um eine Anode herzustellen, wurde das resultierende Si-C-Kompositmaterial carbonisiert, auf einen Stromsammler aufgetragen und elektro-chemisch charakterisiert. Der Einfluss der Vorbehandlungsschritte auf den Herstellungsprozess und die {\"o}konomische Bewertung des untersuchten Bioraffinerie-Prozesses wurde mithilfe eines Stoffstrommodells analysiert.},
  language  = {de}
}
@inproceedings{WulfhorstDuweMoehringetal.2016,
  author    = {Wulfhorst, H. and Duwe, A. and M{\"o}hring, S. and Jurca, O. and Tippk{\"o}tter, Nils},
  title     = {Analysis of pretreated biomass by differential scanning 132 calorimetry and multivariate data analysis},
  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     = {132},
  year      = {2016},
  language  = {en}
}
@inproceedings{WuKemper2016,
  author    = {Wu, Ziyi and Kemper, Hans},
  title     = {The optimal 48 V - battery pack for a specific load profile of a heavy duty vehicle},
  series = {8. Internationale Fachtagung Kraftwerk Batterie : 26. - 27. April 2016, M{\"u}nster, Deutschland},
  booktitle = {8. Internationale Fachtagung Kraftwerk Batterie : 26. - 27. April 2016, M{\"u}nster, Deutschland},
  year      = {2016},
  language  = {en}
}
@inproceedings{WuPoghossianWerneretal.2013,
  author    = {Wu, Chunsheng and Poghossian, Arshak and Werner, Frederik and Bronder, Thomas and B{\"a}cker, Matthias and Wang, Ping and Sch{\"o}ning, Michael Josef},
  title     = {An application of a scanning light-addressable potentiometric sensor for label-free DNA detection},
  series = {11. Dresdner Sensor-Symposium : 9.-11.12.2013},
  booktitle = {11. Dresdner Sensor-Symposium : 9.-11.12.2013},
  organization    = {Dresdner Sensor-Symposium <11, 2013>},
  isbn      = {978-3-9813484-5-3},
  pages     = {164 -- 168},
  year      = {2013},
  language  = {en}
}
@article{WuPoghossianBronderetal.2016,
  author    = {Wu, Chunsheng and Poghossian, Arshak and Bronder, Thomas and Sch{\"o}ning, Michael Josef},
  title     = {Sensing of double-stranded DNA molecules by their intrinsic molecular charge using the light-addressable potentiometric sensor},
  series = {Sensors and Actuators B: Chemical},
  journal   = {Sensors and Actuators B: Chemical},
  number    = {229},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0925-4005},
  doi       = {10.1016/j.snb.2016.02.004},
  pages     = {506 -- 512},
  year      = {2016},
  abstract  = {A multi-spot light-addressable potentiometric sensor (LAPS), which belongs to the family of semiconductor field-effect devices, was applied for label-free detection of double-stranded deoxyribonucleic acid (dsDNA) molecules by their intrinsic molecular charge. To reduce the distance between the DNA charge and sensor surface and thus, to enhance the electrostatic coupling between the dsDNA molecules and the LAPS, the negatively charged dsDNA molecules were electrostatically adsorbed onto the gate surface of the LAPS covered with a positively charged weak polyelectrolyte layer of PAH (poly(allylamine hydrochloride)). The surface potential changes in each spot of the LAPS, induced by the layer-by-layer adsorption of a PAH/dsDNA bilayer, were recorded by means of photocurrent-voltage and constant-photocurrent measurements. In addition, the surface morphology of the gate surface before and after consecutive electrostatic adsorption of PAH and dsDNA layers was studied by atomic force microscopy measurements. Moreover, fluorescence microscopy was used to verify the successful adsorption of dsDNA molecules onto the PAH-modified LAPS surface. A high sensor signal of 25 mV was registered after adsorption of 10 nM dsDNA molecules. The lower detection limit is down to 0.1 nM dsDNA. The obtained results demonstrate that the PAH-modified LAPS device provides a convenient and rapid platform for the direct label-free electrical detection of in-solution hybridized dsDNA molecules.},
  language  = {en}
}
@article{WuBronderPoghossianetal.2015,
  author    = {Wu, Chunsheng and Bronder, Thomas and Poghossian, Arshak and Werner, Frederik and Sch{\"o}ning, Michael Josef},
  title     = {Label-free detection of DNA using light-addressable potentiometric sensor modified with a positively charged polyelectrolyte layer},
  series = {Nanoscale},
  volume    = {14},
  journal   = {Nanoscale},
  number    = {7},
  publisher = {Royal Society of Chemistry (RSC)},
  address   = {Cambridge},
  doi       = {10.1039/C4NR07225A},
  pages     = {6143 -- 6150},
  year      = {2015},
  abstract  = {A multi-spot (16 spots) light-addressable potentiometric sensor (MLAPS) consisting of an Al-p-Si-SiO2 structure modified with a weak polyelectrolyte layer of PAH (poly(allylamine hydrochloride)) was applied for the label-free electrical detection of DNA (deoxyribonucleic acid) immobilization and hybridization by the intrinsic molecular charge for the first time. To achieve a preferentially flat orientation of DNA strands and thus, to reduce the distance between the DNA charge and MLAPS surface, the negatively charged probe single-stranded DNAs (ssDNA) were electrostatically adsorbed onto the positively charged PAH layer using a simple layer-by-layer (LbL) technique. In this way, more DNA charge can be positioned within the Debye length, yielding a higher sensor signal. The surface potential changes in each spot induced due to the surface modification steps (PAH adsorption, probe ssDNA immobilization, hybridization with complementary target DNA (cDNA), non-specific adsorption of mismatched ssDNA) were determined from the shifts of photocurrent-voltage curves along the voltage axis. A high sensor signal of 83 mV was registered after immobilization of probe ssDNA onto the PAH layer. The hybridization signal increases from 5 mV to 32 mV with increasing the concentration of cDNA from 0.1 nM to 5 μM. In contrast, a small signal of 5 mV was recorded in the case of non-specific adsorption of fully mismatched ssDNA (5 μM). The obtained results demonstrate the potential of the MLAPS in combination with the simple and rapid LbL immobilization technique as a promising platform for the future development of multi-spot light-addressable label-free DNA chips with direct electrical readout.},
  language  = {en}
}
@article{WuBronderPoghossianetal.2014,
  author    = {Wu, Chunsheng and Bronder, Thomas and Poghossian, Arshak and Werner, Frederik and B{\"a}cker, Matthias and Sch{\"o}ning, Michael Josef},
  title     = {Label-free electrical detection of DNA with a multi-spot LAPS: First step towards light-addressable DNA chips},
  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.201330442},
  pages     = {1423 -- 1428},
  year      = {2014},
  abstract  = {A multi-spot (4 × 4 spots) light-addressable potentiometric sensor (MLAPS) consisting of an Al-p-Si-SiO2 structure has been applied for the label-free electrical detection of DNA (deoxyribonucleic acid) immobilization and hybridization by the intrinsic molecular charge for the first time. Single-stranded probe ssDNA molecules (20 bases) were covalently immobilized onto the silanized SiO2 gate surface. The unspecific adsorption of mismatch ssDNA on the MLAPS gate surface was blocked by bovine serum albumin molecules. To reduce the screening effect and to achieve a high sensor signal, the measurements were performed in a low ionic-strength solution. The photocurrent-voltage (I-V) curves were simultaneously recorded on all 16 spots after each surface functionalization step. Large shifts of I-V curves of 25 mV were registered after the DNA immobilization and hybridization event. In contrast, a small potential shift (∼5 mV) was observed in case of mismatch ssDNA, revealing good specificity of the sensor. The obtained results demonstrate the potential of the MLAPS as promising transducer platform for the multi-spot label-free electrical detection of DNA molecules by their intrinsic molecular charge.},
  language  = {en}
}
@inproceedings{WuBronderPoghossianetal.2014,
  author    = {Wu, Chunsheng and Bronder, Thomas and Poghossian, Arshak and Sch{\"o}ning, Michael Josef},
  title     = {DNA-hybridization detection using light-addressable potentiometric sensor modified with gold layer},
  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}
}
@masterthesis{Wrutniak2021,
  type      = {Bachelor Thesis},
  author    = {Wrutniak, Sophia Stefanie},
  title     = {Monitoring-System f{\"u}r die Luftrettung: ergonomisches Designkonzept f{\"u}r den medizinischen Anwender},
  publisher = {FH Aachen},
  address   = {Aachen},
  school      = {Fachhochschule Aachen},
  pages     = {129 Seiten},
  year      = {2021},
  abstract  = {Bei einem Luftrettungseinsatz hat die Herstellung der Transportf{\"a}higkeit des Patienten Priorit{\"a}t. Im Anschluss erfolgt das Monitoring w{\"a}hrend des Fluges. Das Problem dabei ist: Es gibt keine einheitliche Basis zur ergonomischen Nutzung und Datenverwertung der medizinischen Ger{\"a}te. Kabel, Positionierung und individuelle Displays beeintr{\"a}chtigen die Anwendenden. Dies kann im schlimmsten Fall die erfolgreiche Patientenbehandlung gef{\"a}hrden und die {\"U}bergabe des Patienten verz{\"o}gern. Im Konzept wurden die Ger{\"a}te drahtlos gestaltet. Mittels Knopfdruck am Ger{\"a}t werden Daten an den Monitor {\"u}bertragen. Schnell und sicher k{\"o}nnen EKG, Blutdruck, SPO2 und Temperatur gemessen und Stethoskop, Ultraschall und Videolaryngoskop verwendet werden. Ein Barcode-Scanner dokumentiert Medikamente und verbrauchte Materialien. Im Anschluss wird ein Zielkrankenhaus ausgew{\"a}hlt, die Ankunftszeit angezeigt und Daten protokolliert und {\"u}bertragen.},
  language  = {de}
}
@article{Wrede1996,
  author    = {Wrede, Oliver},
  title     = {Mnemotechnik in graphischen Benutzeroberfl{\"a}chen},
  series = {Form <Basel> / Form-Diskurs : Zeitschrift f{\"u}r Design und Theorie. 1 (1996), H. 2},
  journal   = {Form <Basel> / Form-Diskurs : Zeitschrift f{\"u}r Design und Theorie. 1 (1996), H. 2},
  year      = {1996},
  language  = {en}
}