Part of
Der Tagungsband „13. Kolloquium Mobilhydraulik“ enthält die gesammelten Beiträge zu den Vorträgen der gleichnamigen Veranstaltung am 08./09. Oktober 2024 in Karlsruhe. In neun Artikeln wird über den Stand der Forschung und neue Entwicklungen auf dem Gebiet der Mobilhydraulik berichtet.
The manuscript “13th Mobile hydraulic colloquium” contains the collected contributions to the presentations of the event of the same name, which took place on the 8th/9th October 2024 in Karlsruhe. In nine articles the research state and new developments in the field of mobile hydraulics are reported.
Umfang: IV, 194 S.
Preis: 45.00 €
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The current work analyzes degradation effects in solid-oxide fuel cell anodes with the phase-field method. A model extension for interface diffusion is formulated and calibrated. Large-scale 3D-simulations provide interesting insights into phenomena at the microscale which are responsible for the degradation
Umfang: XX, 258 S.
Preis: 45.00 €
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Strong winds accompanying extratropical cyclones are commonly associated with various mesoscale features. This work introduces RAMEFI (RAndom-forest-based Mesoscale wind Feature Identification), an objective and flexible identification approach based on key surface characteristics to distinguish these features. RAMEFI is further applied to compile a climatology over Europe, offering a comprehensive analysis of feature frequency, distribution, and characteristics.
Umfang: XIV, 186 S.
Preis: 42.00 €
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Der vorliegende Sammelband widmet sich dem Thema der Textkompetenz in den MINT-Fächern. Unter Textkompetenz wird dabei die Fähigkeit verstanden, Texte zu rezipieren, zu produzieren und aus ihnen zu lernen. Die Behandlung des Themas der Textkompetenz findet in drei Sektionen statt, die alle eine unterschiedliche Perspektive auf das Thema eröffnen: Textkompetenzentwicklung, Textsorten und Textqualität.
This edited volume is dedicated to the topic of text literacy in STEM subjects. Text literacy is understood as the ability to receive, produce and learn from texts. The topic of text literacy is dealt with in three sections, each offering a different perspective on the topic: text literacy development, text types and text quality.
Umfang: VIII, 208 S.
Preis: 34.00 €
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In dieser Arbeit wird eine hydraulische Schaltung zur Reduzierung der Teillastverluste von hydraulisch-mechanischen Load-Sensing (LS) Systemen entwickelt und am Beispiel eines Hydraulikbaggers untersucht. Die erreichbare Effizienzsteigerung wird anhand typischer Baggerzyklen durch eine Potentialanalyse bestimmt, die Komponenten der Schaltung werden ausgelegt und optimiert. Mittels gekoppelter Simulation wird die Performance des optimierten Systems untersucht und deren Funktion verifiziert.
In this thesis, a hydraulic circuit will be developed, which can reduce the partial load losses of hydraulic-mechanic load-sensing systems (LS). As reference application, the LS system of an hydraulic excavator will be used. The efficiency improvement potential of different excavator cycles will be determined and the main components of the new circuit will be designed and optimized. By means of Co-simulation, function and performance of the optimized system will be verified.
Umfang: XXIV, 268 S.
Preis: 49.00 €
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In this work, an extension of the federated averaging algorithm, FedAvg-Gaussian, is applied to train probabilistic neural networks. The performance advantage of probabilistic prediction models is demonstrated and it is shown that federated learning can improve driving range prediction. Using probabilistic predictions, routing and charge planning based on destination attainability can be applied. Furthermore, it is shown that probabilistic predictions lead to reduced travel time.
Umfang: XX, 155 S.
Preis: 39.00 €
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Refraktive Röntgenlinsen (engl.: Compound Refractive X ray Lenses, CRLs) weisen eine absorptionsbegrenzte numerische Apertur auf. In dieser Arbeit wird ein Feld von CRLs mit jeweils leicht geneigten optischen Achsen verwendet, um diese Limitierung bei der Vollfeldmikroskopie an Laborquellen zu umgehen. Unter anderem wird auf die röntgentiefenlithografische Herstellung von CRLs eingegangen und parallele Felder von CRLs diskutiert (Hartmann-Shack-Wellenfrontsensor, rasternde Abbildungsverfahren).
Compound refractive X-ray lenses (CRLs) have an absorption-limited numerical aperture. In this work, an array of CRLs with slightly inclined optical axes is used to circumvent this limitation in full-field microscopy at laboratory sources. Among other things, fabrication of CRLs via deep X-ray lithography and parallel fields of CRLs (Shack-Hartmann wavefront sensor, scanning imaging methods) are discussed.
Umfang: IX, 113 S.
Preis: 38.00 €
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Magnetic confinement fusion relies on plasma heating and plasma control using gyrotron oscillators providing at megawatt power levels. The operational reliability decreases when operating at the performance limits due to increasing parasitic mode activity. This work demonstrates for the first time the automated, fast recovery of nominal gyrotron operation during a pulse by exploiting the hysteretic gyrotron behaviour after a mode switch being in use at the Wendelstein 7-X ECRH facility.
Umfang: XVII, 237 S.
Preis: 47.00 €
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This work proposes a novel method for a matching tool between MRI and spot mammograms. Two registration methods are used : a biomechanical model based registration between MRI and full X-ray mammograms, followed by an image based registration between full and spot mammograms. The proposed methods have been tested using 51 patients from the Medical University of Vienna. For the analyzed dataset, the proposed methods showed not only promising results but also the feasibility of clinical use.
Umfang: XIV, 238 S.
Preis: 53.00 €
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Um auf die Klimaziele mit energetisch planenden Funktionen in Elektrofahrzeugen hinzuarbeiten, ist entlang geplanter Strecken eine präzise Energiebedarfsprognose unabdingbar, welche relevante Einflüsse separat quantifiziert. Diese Arbeit zeigt dazu eine neue Fahrprofilprognose, welche die Energieflüsse beim Fahren und Rekuperieren auf beliebigen Streckenabschnitten mit nur 5 Parametern erfasst. Anwendung findet das Modell in einer Reichweitenprognose sowie einer zeitlichen Routenoptimierung.
To work towards climate goals with energetic planning functions in electric vehicles, a precise energy demand forecast along planned routes is essential, which separately quantifies relevant influences. For that this work shows a new driving profile prediction, which models energy flows while driving and recuperating on any link of a route with just 5 parameters. This work shows example applications of the model range forecasting and temporal route optimization.
Umfang: XXVII, 166 S.
Preis: 39.00 €
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