@article{FrauenrathHezelRenzetal.2010, author = {Frauenrath, Tobias and Hezel, Fabian and Renz, Wolfgang and de Geyer d'Orth, Thibaut and Dieringer, Matthias and von Knobelsdorf-Brenkenhoff, Florian and Prothmann, Marcel and Schulz-Menger, Jeanette and Niendorf, Thoralf}, title = {Acoustic cardiac triggering: a practical solution for synchronization and gating of cardiovascular magnetic resonance at 7 Tesla}, series = {Journal of Cardiovascular Magnetic Resonance}, volume = {12}, journal = {Journal of Cardiovascular Magnetic Resonance}, number = {1}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1532-429X}, doi = {10.1186/1532-429X-12-67}, year = {2010}, abstract = {Background To demonstrate the applicability of acoustic cardiac triggering (ACT) for imaging of the heart at ultrahigh magnetic fields (7.0 T) by comparing phonocardiogram, conventional vector electrocardiogram (ECG) and traditional pulse oximetry (POX) triggered 2D CINE acquisitions together with (i) a qualitative image quality analysis, (ii) an assessment of the left ventricular function parameter and (iii) an examination of trigger reliability and trigger detection variance derived from the signal waveforms. Results ECG was susceptible to severe distortions at 7.0 T. POX and ACT provided waveforms free of interferences from electromagnetic fields or from magneto-hydrodynamic effects. Frequent R-wave mis-registration occurred in ECG-triggered acquisitions with a failure rate of up to 30\% resulting in cardiac motion induced artifacts. ACT and POX triggering produced images free of cardiac motion artefacts. ECG showed a severe jitter in the R-wave detection. POX also showed a trigger jitter of approximately Δt = 72 ms which is equivalent to two cardiac phases. ACT showed a jitter of approximately Δt = 5 ms only. ECG waveforms revealed a standard deviation for the cardiac trigger offset larger than that observed for ACT or POX waveforms. Image quality assessment showed that ACT substantially improved image quality as compared to ECG (image quality score at end-diastole: ECG = 1.7 ± 0.5, ACT = 2.4 ± 0.5, p = 0.04) while the comparison between ECG vs. POX gated acquisitions showed no significant differences in image quality (image quality score: ECG = 1.7 ± 0.5, POX = 2.0 ± 0.5, p = 0.34). Conclusions The applicability of acoustic triggering for cardiac CINE imaging at 7.0 T was demonstrated. ACT's trigger reliability and fidelity are superior to that of ECG and POX. ACT promises to be beneficial for cardiovascular magnetic resonance at ultra-high field strengths including 7.0 T.}, language = {en} } @misc{WiesenTippkoetterDuweetal.2012, author = {Wiesen, S. and Tippk{\"o}tter, Nils and Duwe, A. and Ulber, Roland}, title = {Aceton-Butanol-Ethanol (ABE)-Fermentation von Organosolv-Holzhydrolysaten}, series = {Chemie Ingenieur Technik}, volume = {84}, journal = {Chemie Ingenieur Technik}, number = {8}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0009-286X}, doi = {10.1002/cite.201250262}, pages = {1308}, year = {2012}, abstract = {Die L{\"o}sungsmittelherstellung durch Clostridien konnte wirtschaftlich nicht mit der chemischen Synthese von L{\"o}sungsmitteln auf Erd{\"o}lbasis konkurrieren und wurde in den fr{\"u}hen 1960er Jahren nahezu vollst{\"a}ndig eingestellt. Das Interesse an nachwachsenden Rohstoffen hat in den letzten Jahren zu einem Wiederaufleben der ABE-Fermentation gef{\"u}hrt. Aufgrund seiner h{\"o}heren Energiedichte im Vergleich zu Ethanol ist Biobutanol als Energietr{\"a}gerbesonders interessant und bietet sich z. B. als Produkt einer Bioraffinerie der 2. Generation an. F{\"u}r die beschriebenen Experimente wird durch das Organosolv-Verfahren aufgeschlossenes Buchenholz verwendet. Der Faserstoff wird mithilfe von CTec2-Enzymen hydrolysiert, wobei der erhaltene {\"U}berstand eine Glucosekonzentration von 66 g L⁻¹ aufweist. Auf der Basis dieses Materials k{\"o}nnen mit Clostridium acetobutylicum Butanol-Ausbeuten erzielt werden, die mit denen unter Verwendung von reinen Zuckern vergleichbar sind. Dem Problem der hohen Produktinhibierung wird mit einer In-situ-Produktaufarbeitung begegnet. Mithilfe von L{\"o}sungsmittelimpr{\"a}gnierten Partikeln (SIPs) kann die Produktausbeute drastisch gesteigert werden, indem die gebildeten L{\"o}sungsmittel durch das auf dem Partikel impr{\"a}gnierte L{\"o}sungsmittel w{\"a}hrend der Fermentation extrahiert werden. Zudem wird hierdurch die weitere Produktaufarbeitungstark vereinfacht.}, language = {de} } @article{MertensKlevenhusenJakob1987, author = {Mertens, Josef and Klevenhusen, K. D. and Jakob, H.}, title = {Accurate Transonic Wave Drag Prediction Using Simple Physical Models}, series = {AIAA-Journal. 25 (1987), H. 6}, journal = {AIAA-Journal. 25 (1987), H. 6}, isbn = {0001-1452}, pages = {799 -- 805}, year = {1987}, language = {en} } @inproceedings{SchirraBauschatWatmuff2014, author = {Schirra, Julian and Bauschat, J.-Michael and Watmuff, J.H.}, title = {Accurate induced drag prediction for highly non-planar lifting systems}, series = {19th Australasian Fluid Mechanics Conference : 8.-11. Dezember 2014, Melbourne, Australia}, booktitle = {19th Australasian Fluid Mechanics Conference : 8.-11. Dezember 2014, Melbourne, Australia}, pages = {4 Seiten}, year = {2014}, abstract = {The impact of wake model effects is investigated for two highly non-planar lifting systems. Dependent on the geometrical arrangement of the configuration, the wake model shape is found to considerably affect the estimation. Particularly at higher angles of attack, an accurate estimation based on the common linear wake model approaches is involved.}, language = {en} } @article{MuellerBillmaierMueller2013, author = {M{\"u}ller, Karsten and Billmaier, Karl and M{\"u}ller, Ernst A.}, title = {Abwasserw{\"a}rmenutzung}, series = {Wasserwirtschaft, Wassertechnik : wwt. 2013, H. 5}, journal = {Wasserwirtschaft, Wassertechnik : wwt. 2013, H. 5}, publisher = {Deutscher Fachverlag}, address = {Frankfurt am Main}, issn = {1438-5716}, pages = {24 -- 26}, year = {2013}, language = {de} } @book{Kettern1992, author = {Kettern, J{\"u}rgen}, title = {Abwassertechnik in Forschung und Praxis : Vortr{\"a}ge anl{\"a}sslich der Jubil{\"a}umsveranstaltung "20 Jahre Oswald-Schulze-Stiftung" / Red. Bearb.: J. T. Kettern}, publisher = {Oswald-Schulze-Stiftung}, address = {Gladbach}, pages = {219 S : Ill., graph. Darst}, year = {1992}, language = {de} } @inproceedings{BuschkuehleSchuermannWollert2009, author = {Buschk{\"u}hle, Peter and Sch{\"u}rmann, Volker and Wollert, J{\"o}rg}, title = {Abstraction of wireless communication by a convergence middleware in conjunction with a XML-configuration}, series = {Information technology and electrical engineering : devices and systems, materials and technologies for the future ; Ilmenau 07 - 10 September 2009 ; 54. IWK Internationales Wissenschaftliches Kolloquium}, booktitle = {Information technology and electrical engineering : devices and systems, materials and technologies for the future ; Ilmenau 07 - 10 September 2009 ; 54. IWK Internationales Wissenschaftliches Kolloquium}, publisher = {Techn. Univ.}, address = {Ilmenau}, isbn = {978-3-938843-44-4}, pages = {95 -- 96}, year = {2009}, language = {en} } @article{SchifferFerreinLakemeyer2015, author = {Schiffer, Stefan and Ferrein, Alexander and Lakemeyer, Gerhard}, title = {Abstracting Away Low-Level Details in Service Robotics with Fuzzy Fluents}, series = {Model-Driven Knowledge Engineering for Improved Software Modularity in Robotics and Automation. Workshop at European Robotics Forum 2015 Vienna, Austria, March 11-13, 2015.}, journal = {Model-Driven Knowledge Engineering for Improved Software Modularity in Robotics and Automation. Workshop at European Robotics Forum 2015 Vienna, Austria, March 11-13, 2015.}, pages = {1 -- 4}, year = {2015}, language = {en} } @inproceedings{BitzAlaydrusStreckertetal.2002, author = {Bitz, Andreas and Alaydrus, M. and Streckert, J. and Hansen, V.W.}, title = {Absorption rates inside human body due to radiated electro-magnetic fields of multi-band base station antennas. Boundary value problems with electrically large and high-resolution bodies}, series = {24th BEMS Annual Meeting, Quebec City, Quebec, Canada, 23 - 27 June 2002}, booktitle = {24th BEMS Annual Meeting, Quebec City, Quebec, Canada, 23 - 27 June 2002}, publisher = {Bioelectromagnetics Society}, address = {Frederick, MD}, pages = {40 -- 41}, year = {2002}, language = {en} } @article{MangHodeniusSchmitzRodeetal.2009, author = {Mang, Thomas and Hodenius, Michael A. J. and Schmitz-Rode, Thomas and Baumann, Martin and Ivanova, Gergana and Wong, John Erik and Haulena, Friedhelm and Soenen, Stefaan J. H. and de Cuyper, Marcel}, title = {Absorption of 10-hydroxycamptothecin into the coat of magnetoliposomes / Hodenius, M. A. J. ; Schmitz-Rode, T. ; Baumann, M. ; Ivoanova, G. ; Wong, J. E. ; Mang, T. ; Haulena, F. ; Soenen, S. J. H. ; De Cuyper, M.}, series = {Colloids and Surfaces A: Physicochemical and Engineering Aspects. 343 (2009), H. 1-3}, journal = {Colloids and Surfaces A: Physicochemical and Engineering Aspects. 343 (2009), H. 1-3}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {0927-7757}, pages = {20 -- 23}, year = {2009}, language = {en} }