TY  - JOUR
A1  - Dienst, Karl-Jakob
A1  - Ott, Udo
T1  - Spezielle nichtkommutative pappussche affine zweiseitige Inzidenzgruppen
JF  - Archiv der Mathematik
Y1  - 1972
SN  - 0003-889X
U6  - https://doi.org/10.1007/BF01304890
VL  - 23
IS  - 1
SP  - 329
EP  - 336
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - CHAP
A1  - Müller-Veggian, Mattea
A1  - Neskakis, A.
A1  - Lieder, R. M.
A1  - Beuscher, H.
T1  - Study of rotational aligned bands in ¹⁹⁰,¹⁹²,¹⁹⁴ Au
T2  - Nuclear interactions : International Conference on Nuclear Interactions held in Canberra, 28 Aug. - 1 Sept. 1978 / ed. by Brian Albert Robson. - (Lecture notes in physics ; 92)
Y1  - 1978
SN  - 978-3-540-09102-8
N1  - Australian Academy of Science <Canberra> ; International Conference on Nuclear Interactions <1978, Canberra>
SP  - 428
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Müller-Veggian, Mattea
A1  - Kops, Elena Rota
A1  - Quin, Peng
A1  - Herzog, Hans
T1  - MRI Based Attenuation Correction for Brain PET Images
T2  - Advances in medical engineering / [3rd RPT - Remagener Physiktage together with the Second Scientific Workshop of Medical Robotics, Navigation and Visualization ... Remagen ... 7.-9. März 2007]. Thorsten M. Buzug (ed.) Part 1.
N2  - This work describes a procedure to yield attenuation maps from MR images which are used for the absorption correction (AC) of brain PET data. Such an approach could be mandatory for future combined PET and MRI scanners, which probably do not include a transmission facility. T1-weighted MR images were segmented into brain tissue, bone, soft tissue, and sinus; attenuation coefficients corresponding to elemental composition and density as well as to 511 keV photon energy were respectively assigned. Attenuation maps containing up to four compartments were created and forward projected into sinograms with attenuation factors which then were used for AC during reconstruction of FDG-PET data. The commonly used AC based on a radioactive (68Ge) transmission scan served as reference. The reconstructed radioactivity values obtained with the MRI-based AC were about 20% lower than those obtained with PET-based AC if the skull was not taken into account. Considering the skull the difference was still about 10%. Our investigations demonstrate the feasibility of a MRI-based AC, but revealed also the necessity of a satisfying delineation of bone thickness which tends to be underestimated in our first approach of T1-weighted MR image segmentation.
Y1  - 2007
SN  - 978-3-540-68763-4
U6  - https://doi.org/10.1007/978-3-540-68764-1_15
N1  - Springer proceedings in physics ; 114
SP  - 93
EP  - 97
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Paczkowski, Sebastian
A1  - Weißbecker, Bernhard
A1  - Schöning, Michael Josef
A1  - Schütz, Stefan
T1  - Biosensors on the Basis of Insect Olfaction
JF  - Insect biotechnology / Andreas Vilcinskas, ed.
Y1  - 2011
SN  - 978-90-481-9640-1
N1  - Biologically-inspired system ; 2
SP  - 225
EP  - 240
PB  - Springer
CY  - Dordrecht [u.a.]
ER  - 
TY  - JOUR
A1  - Schubert, Nicole
A1  - Scholl, Ingrid
T1  - Comparing GPU-based multi-volume ray casting techniques
JF  - Computer Science - Research and Development
Y1  - 2011
SN  - 1865-2042
VL  - 26
IS  - 12
SP  - 39
EP  - 50
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Scholl, Ingrid
A1  - Aach, Til
A1  - Deserno, Thomas M.
A1  - Kuhlen, Torsten
T1  - Challenges of medical image processing
JF  - Computer Science - Research and Development
Y1  - 2011
SN  - 1865-2042
VL  - 26
IS  - 1-2
SP  - 5
EP  - 13
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Deserno, Thomas M.
A1  - Aach, Til
A1  - Amunts, Katrin
A1  - Hillen, Walter
A1  - Kuhlen, Torsten
A1  - Scholl, Ingrid
T1  - Advances in medical image processing : A special Issue on the Workshop in Aachen, Germany, March 2010
JF  - Computer Science - Research and Development. 26 (2011), H. 1-2
Y1  - 2011
SN  - 1865-2042
SP  - 1
EP  - 3
PB  - springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Helsper, Christoph
A1  - Dressler, Jörg
ED  - Gail, Lothar
ED  - Gommel, Udo
ED  - Hortig, Hans-Peter
T1  - Partikelmesstechnik
T2  - Reinraumtechnik
N2  - Der Schutz von Produkten vor der Kontamination durch Partikel gilt als eine zentrale Aufgabe der Reinraumtechnik. Da es dabei um Kontaminationseffekte weit unterhalb der visuellen Wahrnehmbarkeit geht, braucht es leistungsfähige Verfahren, um die Messgröße „Partikelkontamination“ über den gesamten Bereich, den Anwender fordern, präzise zu bestimmen. Neben der Partikelhäufigkeit ist dabei die Größe der Partikel, die sowohl das Transportverhalten wie auch die mögliche Wirkung auf das Produkt beeinflusst, von entscheidender Bedeutung. Ferner kann es für die Ermittlung von Kontaminationsquellen von Interesse sein, die Form und die chemische Natur der Partikel zu bestimmen (z. B. textile Fasern, Metallabrieb, flüssige Tröpfchen). Die Partikelhäufigkeit wird üblicherweise als Konzentration, d. h. bezogen auf das analysierte Gasvolumen angegeben. Bei den in reinen Technologien üblichen niedrigen Konzentrationen dient als Häufigkeitsmaß die Partikelanzahlkonzentration, also die Partikelanzahl pro Volumeneinheit des Trägermediums.
Y1  - 2012
SN  - 978-3-642-19435-1
U6  - https://doi.org/10.1007/978-3-642-19435-1_3
VL  - 2012
SP  - 69
EP  - 95
PB  - Springer
CY  - Berlin
ET  - 3
ER  - 
TY  - JOUR
A1  - Nomdedeu, Mar Monsonis
A1  - Willen, Christine
A1  - Schieffer, Andre
A1  - Arndt, Hartmut
T1  - Temperature-dependent ranges of coexistence in a model of a two-prey-one-predator microbial food web
JF  - Marine Biology
N2  - The objective of our study was to analyze the effects of temperature on the population dynamics of a three-species food web consisting of two prey bacteria (Pedobacter sp. and Acinetobacter johnsonii) and a protozoan predator (Tetrahymena pyriformis) as model organisms. We assessed the effects of temperature on the growth rates of all three species with the objective of developing a model with four differential equations based on the experimental data. The following hypotheses were tested at a theoretical level: Firstly, temperature changes can affect the dynamic behavior of a system by temperature-dependent parameters and interactions and secondly, food web response to temperature cannot be derived from the single species temperature response. The main outcome of the study is that temperature changes affect the parameter range where coexistence is possible within all three species. This has significant consequences on our ideas regarding the evaluation of effects of global warming.
Y1  - 2012
U6  - https://doi.org/10.1007/s00227-012-1966-x
SN  - 1432-1793
VL  - 159
IS  - 11
SP  - 2423
EP  - 2430
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Röth, Thilo
A1  - Kampker, Achim
A1  - Reisgen, Uwe
A1  - Hameyer, Kay
A1  - De Doncker, R. W.
T1  - Entwicklung von elektrofahrzeugspezifischen Systemen
T2  - Elektromobilität : Grundlagen einer Zukunftstechnologie
N2  - Die Fahrzeugkarosserie bildet als größte funktionale und organisatorische Systemeinheit ein zentrales Kompetenzfeld der OEMs. Für den Fahrzeughersteller stellt der Karosserierohbau eine hohe Kernkompetenz sowohl in der Produktentwicklung als auch in der Produktion dar. Neue, innovative Karosseriebauweisen, bspw. aufgrund eines neuen Fahrzeugkonzeptes oder neuer Anforderungen, bedeuten für den OEM auch gleichzeitig die intensive Auseinandersetzung mit Kompetenzfokussierung bzw. Wertschöpfungsverlagerungen.
Y1  - 2013
SN  - 978-3-642-31986-0
SP  - 235
EP  - 336
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Mandelartz, Johannes
T1  - VDI-Richtlinien – mit Technischen Regeln Wirtschaftlichkeit erhöhen und Standards setzen
T2  - Betriebliche Instandhaltung
N2  - Der Verein Deutscher Ingenieure e.V. (VDI) ist ein gemeinnütziger, wirtschaftlich und politisch unabhängiger, technisch-wissenschaftlicher Verein von Ingenieuren und Naturwissenschaftlern. Mit über 137 000 persönlich zugeordneten Mitgliedern ist er eine der größten Ingenieur-Vereinigungen Europas und gilt in Deutschland als führender Sprecher der Technik und der Ingenieure. 1856 gegründet, hat er viele für die Technik wesentliche Entwicklungen in Gang gesetzt, so im Bereich der technischen Überwachung, der technischen Regelsetzung und Normung, der Arbeitsstudien, im gewerblichen Rechtsschutz und im Patentwesen. Seit seiner Gründung sieht es der VDI als seine Aufgabe, "das Zusammenwirken aller geistiger Kräfte der Technik im Bewusstsein ethischer Verantwortung zu fördern" und die Lebensmöglichkeiten aller Menschen durch Entwicklung und sinnvoller Anwendung technischer Mittel zu verbessern.
Y1  - 2009
SN  - 978-3-642-00502-2
U6  - https://doi.org/10.1007/978-3-642-00502-2_26
SP  - 311
EP  - 317
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - JOUR
A1  - Pawelke, Siegfried
A1  - Butzer, Paul L.
T1  - Semi-groups and resolvent operators
JF  - Archive for Rational Mechanics and Analysis
KW  - Resolvent Operator
KW  - Electromagnetism
KW  - Complex System
KW  - Neural Network
KW  - Nonlinear Dynamics
Y1  - 1968
U6  - https://doi.org/10.1007/BF00250941
SN  - 0003-9527
VL  - 30
IS  - 2
SP  - 127
EP  - 147
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Berretz, Frank
A1  - Skorupa, Sasche
A1  - Sander, Volker
A1  - Belloum, Adam
A1  - Bubak, Marian
T1  - Actor-Driven Workflow Execution in Distributed Environments
JF  - Euro-Par 2010 Parallel Processing Workshops : HeteroPAR, HPCC, HiBB, CoreGrid, UCHPC, HPCF, PROPER, CCPI, VHPC ; Ischia, Italy, August 31 - September 3, 2010 ; revised selected papers / Mario R. Guarracino ... (eds.)
Y1  - 2011
SN  - 978-3-642-21877-4
N1  - Lecture Notes in Computer Science ; 6586
SP  - 287
EP  - 294
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Schaefer, Thomas
A1  - Höfken, Hans-Wilhelm
A1  - Schuba, Marko
T1  - Windows Phone 7 from a Digital Forensics’ Perspective
Y1  - 2011
N1  - ICDF2C <3, 2011, Dublin>
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Pichler, A.
A1  - George, A.
A1  - Seiler, F.
A1  - Srulijes, J.
A1  - Havermann, Marc
T1  - Doppler Picture Velocimetry (DPV) applied to hypersonics
JF  - Shock Waves [Elektronische Ressource] : 26th International Symposium on Shock Waves, Volume 1 / edited by Klaus Hannemann, Friedrich Seiler
Y1  - 2009
SN  - 978-3-540-85168-4
N1  - International Symposium on Shock Waves ; (26 ; 2007.07.15-20 ; Göttingen) ; ISSW ; (26 ; 2007.07.15-20 ; Göttingen)
SP  - 503
EP  - 508
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Pieper, Martin
A1  - Klein, Peter
T1  - A simple and accurate numerical network flow model for bionic micro heat exchangers
JF  - Heat mass transfer
Y1  - 2011
SN  - 0947-7411
VL  - 47
IS  - 5
SP  - 491
EP  - 503
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Pieper, Martin
A1  - Klein, Peter
T1  - Application of simple, periodic homogenization techniques to non-linear heat conduction problems in non-periodic, porous media
JF  - Heat mass transfer
N2  - Often, detailed simulations of heat conduction in complicated, porous media have large runtimes. Then homogenization is a powerful tool to speed up the calculations by preserving accurate solutions at the same time. Unfortunately real structures are generally non-periodic, which requires unpractical, complicated homogenization techniques. We demonstrate in this paper, that the application of simple, periodic techniques to realistic media, that are just close to periodic, gives accurate, approximative solutions. In order to obtain effective parameters for the homogenized heat equation, we have to solve a so called “cell problem”. In contrast to periodic structures it is not trivial to determine a suitable unit cell, which represents a non-periodic media. To overcome this problem, we give a rule of thumb on how to choose a good cell. Finally we demonstrate the efficiency of our method for virtually generated foams as well as real foams and compare these results to periodic structures.
Y1  - 2012
U6  - https://doi.org/10.1007/s00231-011-0879-4
SN  - 0947-7411
VL  - 48
IS  - 2
SP  - 291
EP  - 300
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Cresser, J. D.
A1  - Häger, J.
A1  - Leuchs, G.
A1  - Rateike, Franz-Matthias
A1  - Walther, H.
T1  - Resonance fluorescence of atoms in strong monochromatic laser fields
T2  - Dissipative systems in quantum optics.  Ed. by Rodolfo Bonifacio. Topics in current physics. Vol. 27
N2  - The investigation of atomic resonance fluorescence has always been of special interest as a means for the determination of atomic parameters. In addition, information on the interaction mechanism between atoms and radiation can be obtained. In the standard fluorescence experiment the frequency distribution of the incident photons is larger than the natural width of the respective transition; as a consequence the correlation time in the photon-atom interaction is determined by the lifetime of the atoms in the excited state. With the development of lasers and especially of tunable dye lasers in recent years it became possible to study the case where the incident radiation has a spectral distribution which is narrower than the natural width. This corresponds to a correlation time of the incoming light wave which is much longer than the excited-state lifetime. In this chapter a survey of experiments on the resonance fluorescence of atoms in monochromatic laser fields will be given.
Y1  - 1982
SN  - 978-3-642-81719-9
U6  - https://doi.org/10.1007/978-3-642-81717-5_3
SP  - 21
EP  - 59
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Weber, Hans-Joachim
T1  - Applied physics of compressible and incompressible fluids
T2  - Critical care nephrology / [Hrsg.:] Claudio Ronco and Rinaldo Bellomo
Y1  - 1998
SN  - 978-94-010-6306-7
SP  - 63
EP  - 84
PB  - Springer
CY  - Dordrecht
ER  - 
TY  - CHAP
A1  - Dikta, Gerhard
T1  - Fundamentals of applied probability and basic statistics
T2  - Critical care nephrology / [Hrsg.:] Claudio Ronco and Rinaldo Bellomo
Y1  - 1998
SN  - 978-94-010-6306-7
SP  - 51
EP  - 61
PB  - Springer
CY  - Dordrecht
ER  -