@article{vonKnobelsdorfBrenkenhoffFrauenrathProthmannetal.2010,
  author    = {von Knobelsdorf-Brenkenhoff, Florian and Frauenrath, Tobias and Prothmann, Marcel and Dieringer, Matthias A. and Hezel, Fabian and Renz, Wolfgang and Kretschel, Kerstin and Niendorf, Thoralf and Schulz-Menger, Jeanette},
  title     = {Cardiac chamber quantification using magnetic resonance imaging at 7 Tesla—a pilot study},
  volume    = {20},
  publisher = {Springer},
  address   = {Berlin, Heidelberg},
  issn      = {0938-7994},
  doi       = {10.1007/s00330-010-1888-2},
  pages     = {2844 -- 2852},
  year      = {2010},
  abstract  = {Objectives Interest in cardiovascular magnetic resonance (CMR) at 7 T is motivated by the expected increase in spatial and temporal resolution, but the method is technically challenging. We examined the feasibility of cardiac chamber quantification at 7 T. Methods A stack of short axes covering the left ventricle was obtained in nine healthy male volunteers. At 1.5 T, steady-state free precession (SSFP) and fast gradient echo (FGRE) cine imaging with 7 mm slice thickness (STH) were used. At 7 T, FGRE with 7 mm and 4 mm STH were applied. End-diastolic volume, end-systolic volume, ejection fraction and mass were calculated. Results All 7 T examinations provided excellent blood/myocardium contrast for all slice directions. No significant difference was found regarding ejection fraction and cardiac volumes between SSFP at 1.5 T and FGRE at 7 T, while volumes obtained from FGRE at 1.5 T were underestimated. Cardiac mass derived from FGRE at 1.5 and 7 T was larger than obtained from SSFP at 1.5 T. Agreement of volumes and mass between SSFP at 1.5 T and FGRE improved for FGRE at 7 T when combined with an STH reduction to 4 mm. Conclusions This pilot study demonstrates that cardiac chamber quantification at 7 T using FGRE is feasible and agrees closely with SSFP at 1.5 T.},
  language  = {en}
}
@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}
}
@article{BeckerFrauenrathHezeletal.2010,
  author    = {Becker, Meike and Frauenrath, Tobias and Hezel, Fabian and Krombach, Gabriele A. and Kremer, Ute and Koppers, Benedikt and Butenweg, Christoph and Goemmel, Andreas and Utting, Jane F. and Schulz-Menger, Jeanette and Niendorf, Thoralf},
  title     = {Comparison of left ventricular function assessment using phonocardiogram- and electrocardiogram-triggered 2D SSFP CINE MR imaging at 1.5 T and 3.0 T},
  series = {European Radiology},
  volume    = {20},
  journal   = {European Radiology},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1432-1084 (Onlineausgabe)},
  doi       = {10.1007/s00330-009-1676-z},
  pages     = {1344 -- 1355},
  year      = {2010},
  abstract  = {Objective: As high-field cardiac MRI (CMR) becomes more widespread the propensity of ECG to interference from electromagnetic fields (EMF) and to magneto-hydrodynamic (MHD) effects increases and with it the motivation for a CMR triggering alternative. This study explores the suitability of acoustic cardiac triggering (ACT) for left ventricular (LV) function assessment in healthy subjects (n=14). Methods: Quantitative analysis of 2D CINE steady-state free precession (SSFP) images was conducted to compare ACT's performance with vector ECG (VCG). Endocardial border sharpness (EBS) was examined paralleled by quantitative LV function assessment. Results: Unlike VCG, ACT provided signal traces free of interference from EMF or MHD effects. In the case of correct Rwave recognition, VCG-triggered 2D CINE SSFP was immune to cardiac motion effects—even at 3.0 T. However, VCG-triggered 2D SSFP CINE imaging was prone to cardiac motion and EBS degradation if R-wave misregistration occurred. ACT-triggered acquisitions yielded LV parameters (end-diastolic volume (EDV), endsystolic volume (ESV), stroke volume (SV), ejection fraction (EF) and left ventricular mass (LVM)) comparable with those derived fromVCG-triggered acquisitions (1.5 T: ESVVCG=(56± 17) ml, EDVVCG=(151±32)ml, LVMVCG=(97±27) g, SVVCG=(94± 19)ml, EFVCG=(63±5)\% cf. ESVACT= (56±18) ml, EDVACT=(147±36) ml, LVMACT=(102±29) g, SVACT=(91± 22) ml, EFACT=(62±6)\%; 3.0 T: ESVVCG=(55±21) ml, EDVVCG=(151±32) ml, LVMVCG=(101±27) g, SVVCG=(96±15) ml, EFVCG=(65±7)\% cf. ESVACT=(54±20) ml, EDVACT=(146±35) ml, LVMACT= (101±30) g, SVACT=(92±17) ml, EFACT=(64±6)\%). Conclusions: ACT's intrinsic insensitivity to interference from electromagnetic fields renders},
  language  = {en}
}
@article{NabilPetersonSchmidtetal.2010,
  author    = {Nabil, F. and Peterson, Leif Arne and Schmidt, A. and Geerdes, D.},
  title     = {Die Holzkuppel des Neuen Palais in Potsdam},
  series = {Bauingenieur},
  volume    = {85},
  journal   = {Bauingenieur},
  number    = {8},
  publisher = {Springer-VDI-Verlag},
  address   = {D{\"u}sseldorf},
  issn      = {0005-6650},
  pages     = {324 -- 330},
  year      = {2010},
  language  = {de}
}
@techreport{EschFunkeRoosen2010,
  author    = {Esch, Thomas and Funke, Harald and Roosen, Petra},
  title     = {SIoBiA - Safety Implications of Biofuels in Aviation},
  publisher = {EASA},
  address   = {K{\"o}ln},
  pages     = {279 Seiten},
  year      = {2010},
  abstract  = {Biofuels potentially interesting also for aviation purposes are predominantly liquid fuels produced from biomass. The most common biofuels today are biodiesel and bioethanol. Since diesel engines are rather rare in aviation this survey is focusing on ethanol admixed to gasoline products. The Directive 2003/30/EC of the European Parliament and the Council of May 8th 2003 on the promotion of the use of biofuels or other renewable fuels for transport encourage a growing admixture of biogenic fuel components to fossil automotive gasoline. Some aircraft models equipped with spark ignited piston engines are approved for operation with automotive gasoline, frequently called "MOGAS" (motor gasoline). The majority of those approvals is limited to MOGAS compositions that do not contain methanol or ethanol beyond negligible amounts. In the past years (bio-)MTBE or (bio-)ETBE have been widely used as blending component of automotive gasoline whilst the usage of low-molecular alcohols like methanol or ethanol has been avoided due to the handling problems especially with regard to the strong affinity for water. With rising mandatory bio-admixtures the conversion of the basic biogenic ethanol to ETBE, causing a reduction of energetic payoff, becomes more and more unattractive. Therefore the direct ethanol admixture is accordingly favoured. Due to the national enforcements of the directive 2003/30/EC more oxygenates produced from organic materials like bioethanol have started to appear in automotive gasolines already. The current fuel specification EN 228 already allows up to 3 \% volume per volume (v/v) (bio-)methanol or up to 5 \% v/v (bio-)ethanol as fuel components. This is also roughly the amount of biogenic components to comply with the legal requirements to avoid monetary penalties for producers and distributors of fuels. Since automotive fuel is cheaper than the common aviation gasoline (AVGAS), creates less problems with lead deposits in the engine, and in general produces less pollutants it is strongly favoured by pilots. But being designed for a different set of usage scenarios the use of automotive fuel with low molecular alcohols for aircraft operation may have adverse effects in aviation operation. Increasing amounts of ethanol admixtures impose various changes in the gasoline's chemical and physical properties, some of them rather unexpected and not within the range of flight experiences even of long-term pilots.},
  language  = {en}
}
@article{Esch2010,
  author    = {Esch, Thomas},
  title     = {Trends in commercial vehicle powertrains},
  series = {ATZautotechnology},
  volume    = {2010},
  journal   = {ATZautotechnology},
  number    = {10},
  publisher = {Vieweg \& Sohn},
  address   = {Wiesbaden},
  issn      = {2192-886X},
  doi       = {10.1007/BF03247185},
  pages     = {26 -- 31},
  year      = {2010},
  abstract  = {Low emission zones and truck bans, the rising price of diesel and increases in road tolls: all of these factors are putting serious pressure on the transport industry. Commercial vehicle manufacturers and their suppliers are in the process of identifying new solutions to these challenges as part of their efforts to meet the EEV (enhanced environmentally friendly vehicle) limits, which are currently the most robust European exhaust and emissions standards for trucks and buses.},
  language  = {en}
}
@inproceedings{ElsenHawariJohnen2010,
  author    = {Elsen, Ingo and Hawari, Asma and Johnen, Uwe},
  title     = {Produktkernel in der Systemintegration (Erfahrungsbericht aus der Praxis)},
  series = {Vom Projekt zum Produkt - Fachtagung des GI-Fachausschusses Management der Anwendungsentwicklung und -wartung im Fachbereich Wirtschaftsinformatik (WI-MAW), 1. - 3. Dezember 2010 in Aachen},
  booktitle = {Vom Projekt zum Produkt - Fachtagung des GI-Fachausschusses Management der Anwendungsentwicklung und -wartung im Fachbereich Wirtschaftsinformatik (WI-MAW), 1. - 3. Dezember 2010 in Aachen},
  editor    = {Pietsch, Wolfram and Krams, Benedikt},
  publisher = {Gesellschaft f{\"u}r Informatik eV},
  address   = {Bonn},
  isbn      = {9783885792727},
  issn      = {1617-5468},
  pages     = {93 -- 102},
  year      = {2010},
  abstract  = {In der Vergangenheit basierten große Systemintegrationsprojekte in der Regel auf Individualentwicklungen f{\"u}r einzelne Kunden. Getrieben durch Kostendruck steigt aber der Bedarf nach standardisierten L{\"o}sungen, die gleichzeitig die individuellen Anforderungen des jeweiligen Umfelds ber{\"u}cksichtigen. T-Systems GEI GmbH wird beiden Anforderungen mit Produktkerneln gerecht. Neben den technischen Aspekten der Kernelentwicklung spielen besonders organisatorische Aspekte eine Rolle, um Kernel effizient und qualitativ hochwertig zu entwickeln, ohne deren Funktionalit{\"a}ten ins Uferlose wachsen zu lassen. Umgesetzt hat T-Systems dieses Konzept f{\"u}r Flughafeninformationssysteme. Damit kann dem wachsenden Bedarf der Flughafenbetreiber nach einer effizienten und kosteng{\"u}nstigen Softwarel{\"o}sung zur Unterst{\"u}tzung Ihrer Gesch{\"a}ftsprozesse entsprochen werden.},
  language  = {de}
}
@inproceedings{GoemmelFrauenrathOttenetal.2010,
  author    = {G{\"o}mmel, Andreas and Frauenrath, Tobias and Otten, Mario and Niendorf, Thoralf and Butenweg, Christoph},
  title     = {In-vivo measurements of vocal fold geometry using Magnetic Resonance Imaging},
  series = {Fortschritte der Akustik - DAGA 2010, 36. Jahrestagung f{\"u}r Akustik},
  booktitle = {Fortschritte der Akustik - DAGA 2010, 36. Jahrestagung f{\"u}r Akustik},
  editor    = {M{\"o}ser, Michael and Schulte-Fortkamp, Brgitte and Ochmann, Martin},
  publisher = {Deutsche Gesellschaft f{\"u}r Akustik},
  address   = {Berlin},
  isbn      = {978-3-9808659-8-2},
  year      = {2010},
  language  = {de}
}
@article{CzarneckiWinkelmannSpiliopoulou2010,
  author    = {Czarnecki, Christian and Winkelmann, Axel and Spiliopoulou, Myra},
  title     = {Services in electronic telecommunication markets: a framework for planning the virtualization of processes},
  series = {Electronic Markets},
  volume    = {20},
  journal   = {Electronic Markets},
  number    = {3-4},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1422-8890},
  doi       = {10.1007/s12525-010-0045-8},
  pages     = {197 -- 207},
  year      = {2010},
  abstract  = {The potential of electronic markets in enabling innovative product bundles through flexible and sustainable partnerships is not yet fully exploited in the telecommunication industry. One reason is that bundling requires seamless de-assembling and re-assembling of business processes, whilst processes in telecommunication companies are often product-dependent and hard to virtualize. We propose a framework for the planning of the virtualization of processes, intended to assist the decision maker in prioritizing the processes to be virtualized: (a) we transfer the virtualization pre-requisites stated by the Process Virtualization Theory in the context of customer-oriented processes in the telecommunication industry and assess their importance in this context, (b) we derive IT-oriented requirements for the removal of virtualization barriers and highlight their demand on changes at different levels of the organization. We present a first evaluation of our approach in a case study and report on lessons learned and further steps to be performed.},
  language  = {en}
}
@techreport{Buedenbender2010,
  type      = {Working Paper},
  author    = {B{\"u}denbender, Martin},
  title     = {Entflechtung von Stromnetzen in Deutschland und Europa im Rahmen des dritten EU-Legislativpakets - Eine Problemdarstellung},
  series = {Arbeitspapiere des Instituts f{\"u}r Genossenschaftswesen der Westf{\"a}lischen Wilhelms-Universit{\"a}t M{\"u}nster, Nr. 91},
  journal   = {Arbeitspapiere des Instituts f{\"u}r Genossenschaftswesen der Westf{\"a}lischen Wilhelms-Universit{\"a}t M{\"u}nster, Nr. 91},
  pages     = {35},
  year      = {2010},
  language  = {de}
}
@inproceedings{BorggraefeDachwald2010,
  author    = {Borggr{\"a}fe, Andreas and Dachwald, Bernd},
  title     = {Mission performance evaluation for solar sails using a refined SRP force model with variable optical coefficients},
  series = {2nd International Symposium on Solar Sailing},
  booktitle = {2nd International Symposium on Solar Sailing},
  pages     = {1 -- 6},
  year      = {2010},
  abstract  = {Solar sails provide ignificant advantages over other low-thrust propulsion systems because they produce thrust by the momentum exchange from solar radiation pressure (SRP) and thus do not consume any propellant.The force exerted on a very thin sail foil basically depends on the light incidence angle. Several analytical SRP force models that describe the SRP force acting on the sail have been established since the 1970s. All the widely used models use constant optical force coefficients of the reflecting sail material. In 2006,MENGALI et al. proposed a refined SRP force model that takes into account the dependancy of the force coefficients on the light incident angle,the sail's distance from the sun (and thus the sail emperature) and the surface roughness of the sail material [1]. In this paper, the refined SRP force model is compared to the previous ones in order to identify the potential impact of the new model on the predicted capabilities of solar sails in performing low-cost interplanetary space missions. All force models have been implemented within InTrance, a global low-thrust trajectory optimization software utilizing evolutionary neurocontrol [2]. Two interplanetary rendezvous missions, to Mercury and the near-Earth asteroid 1996FG3, are investigated. Two solar sail performances in terms of characteristic acceleration are examined for both scenarios, 0.2 mm/s2 and 0.5 mm/s2, termed "low" and "medium" sail performance. In case of the refined SRP model, three different values of surface roughness are chosen, h = 0 nm, 10 nm and 25 nm. The results show that the refined SRP force model yields shorter transfer times than the standard model.},
  language  = {en}
}
@incollection{Dachwald2010,
  author    = {Dachwald, Bernd},
  title     = {Solar sail dynamics and control},
  series = {Encyclopedia of Aerospace Engineering},
  booktitle = {Encyclopedia of Aerospace Engineering},
  publisher = {Wiley},
  address   = {Hoboken},
  doi       = {10.1002/9780470686652.eae292},
  year      = {2010},
  abstract  = {Solar sails are large and lightweight reflective structures that are propelled by solar radiation pressure. This chapter covers their orbital and attitude dynamics and control. First, the advantages and limitations of solar sails are discussed and their history and development status is outlined. Because the dynamics of solar sails is governed by the (thermo-)optical properties of the sail film, the basic solar radiation pressure force models have to be described and compared before parameters to measure solar sail performance can be defined. The next part covers the orbital dynamics of solar sails for heliocentric motion, planetocentric motion, and motion at Lagrangian equilibrium points. Afterwards, some advanced solar radiation pressure force models are described, which allow to quantify the thrust force on solar sails of arbitrary shape, the effects of temperature, of light incidence angle, of surface roughness, and the effects of optical degradation of the sail film in the space environment. The orbital motion of a solar sail is strongly coupled to its rotational motion, so that the attitude control of these soft and flexible structures is very challenging, especially for planetocentric orbits that require fast attitude maneuvers. Finally, some potential attitude control methods are sketched and selection criteria are given.},
  language  = {en}
}
@techreport{TemizArtmann2010,
  author    = {Temiz Artmann, Ayseg{\"u}l},
  title     = {Fr{\"u}hgeburtenrate mindern durch ein Prognoseverfahren f{\"u}r den vorzeitigen Blasensprung - PROMPT (Premature rupture of membranes prediction test) : Abschlussbericht ; Laufzeit des Vorhabens: 01.03.2007 - 31.12.2009},
  publisher = {Technische Informationsbibliothek u. Universit{\"a}tsbibliothek},
  address   = {Aachen},
  doi       = {10.2314/GBV:644277858},
  year      = {2010},
  language  = {de}
}
@article{GrajewskiKoesterTurek2010,
  author    = {Grajewski, Matthias and K{\"o}ster, Michael and Turek, Stefam},
  title     = {Numerical analysis and implementational aspects of a new multilevel grid deformation method},
  series = {Applied Numerical Mathematics},
  volume    = {60},
  journal   = {Applied Numerical Mathematics},
  number    = {8},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0168-9274},
  doi       = {10.1016/j.apnum.2010.03.017},
  pages     = {767 -- 781},
  year      = {2010},
  abstract  = {Recently, we introduced and mathematically analysed a new method for grid deformation (Grajewski et al., 2009) [15] we call basic deformation method (BDM) here. It generalises the method proposed by Liao et al. (Bochev et al., 1996; Cai et al., 2004; Liao and Anderson, 1992) [4], [6], [20]. In this article, we employ the BDM as core of a new multilevel deformation method (MDM) which leads to vast improvements regarding robustness, accuracy and speed. We achieve this by splitting up the deformation process in a sequence of easier subproblems and by exploiting grid hierarchy. Being of optimal asymptotic complexity, we experience speed-ups up to a factor of 15 in our test cases compared to the BDM. This gives our MDM the potential for tackling large grids and time-dependent problems, where possibly the grid must be dynamically deformed once per time step according to the user's needs. Moreover, we elaborate on implementational aspects, in particular efficient grid searching, which is a key ingredient of the BDM.},
  language  = {en}
}
@inproceedings{MatchaLjubas2010,
  author    = {Matcha, Heike and Ljubas, Ante},
  title     = {Parametric Origami: Adaptable temporary buildings},
  series = {Future cities: 28th eCAADe Conference Proceedings. eCAADe: Conferences. Zurich, Switzerland},
  booktitle = {Future cities: 28th eCAADe Conference Proceedings. eCAADe: Conferences. Zurich, Switzerland},
  isbn      = {978-0-9541183-7-2},
  pages     = {243 -- 251},
  year      = {2010},
  language  = {en}
}
@book{Matcha2010,
  author    = {Matcha, Heike},
  title     = {Expo 15 : Experimental Parametric Object ; Realisierung des Messestandes "Digital Origami" f{\"u}r den Fachbereich Architektur der Technischen Universit{\"a}t Darmstadt},
  publisher = {Technische Universit{\"a}t Darmstadt},
  address   = {Darmstadt},
  pages     = {54 S. : Ill.},
  year      = {2010},
  language  = {de}
}
@incollection{Matcha2010,
  author    = {Matcha, Heike},
  title     = {Regelbasierte Planung - Parametrik},
  series = {Digitale Prozesse : Planung, Gestaltung, Fertigung},
  booktitle = {Digitale Prozesse : Planung, Gestaltung, Fertigung},
  editor    = {Hauschild, Moritz and Karzel, R{\"u}diger},
  publisher = {Detail},
  address   = {M{\"u}nchen},
  isbn      = {978-3-95553-022-8},
  doi       = {10.11129/detail.9783955530228},
  pages     = {24 -- 24},
  year      = {2010},
  language  = {de}
}
@incollection{Matcha2010,
  author    = {Matcha, Heike},
  title     = {Regelbasierte Planung - Parametrik},
  series = {Digitale Prozesse: Planung, Gestaltung, Fertigung},
  booktitle = {Digitale Prozesse: Planung, Gestaltung, Fertigung},
  editor    = {Hauschild, Moritz and Karzel, R{\"u}diger},
  publisher = {Ed. Detail},
  address   = {M{\"u}nchen},
  isbn      = {978-3-920034-35-5},
  pages     = {24 -- 24},
  year      = {2010},
  language  = {de}
}
@book{MatchaQuastenRabighomi2010,
  author    = {Matcha, Heike and Quasten, Gero and Rabighomi, Hossein},
  title     = {Qualit{\"a}tssteigerung im verdichteten Wohnungsbau {\"u}ber Erzeugung gr{\"o}ßerer Vielfalt und Flexibilit{\"a}t durch individualisierte Massenfertigung am Beispiel gestapelter Reihenh{\"a}user},
  publisher = {Fraunhofer IRB Verlag},
  address   = {Stuttgart},
  isbn      = {978-3-8167-8216-2},
  pages     = {171 S. : graph. Darst.},
  year      = {2010},
  language  = {de}
}
@book{Matcha2010,
  author    = {Matcha, Heike},
  title     = {Lamborghini an der Spree : Masterentwurf WS 2008/2009},
  publisher = {Technische Universit{\"a}t Darmstadt},
  address   = {Darmstadt},
  isbn      = {978-3-88536-113-8},
  pages     = {65 S. : {\"u}berw. Ill.},
  year      = {2010},
  language  = {de}
}