Ph.D. Theses

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2019-05-14
14:05
[FZJ-2019-02998] Dissertation / PhD Thesis

Resistive switching phenomena in stacks of binary transition metal oxides grown by atomic layer deposition
196 pp. () = Dissertation, RWTH Aachen, 2019

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2019-05-09
15:54
OpenAccess [FZJ-2019-02963] Book/Dissertation / PhD Thesis

Model-based Source Partitioning of Eddy Covariance Flux Measurements
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment 461, XVI, 132 () = Dissertation, Universität Bonn, 2019
Terrestrial ecosystems constantly exchange momentum, energy, and mass (e.g., water vapor,CO2) with the atmosphere above. This exchange is commonly measured with amicrometeorological technique, the eddy covariance (EC) method [...]
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2019-05-02
14:07
OpenAccess [FZJ-2019-02847] Dissertation / PhD Thesis

High-k rare-earth oxides on GaN and ferroelectric properties of hafnia based thin films
133 p. () = Dissertation, RWTH Aachen University, 2014
The continuous improvement of the transistors is the basis for the increase of computing power. For enhanced metal-oxide-semiconductor (MOS) field-effect-transistors(FETs) and other devices suitable gate dielectrics are required, that exhibit a high relative permittivity, good insulating properties like a large band gap, and a goodlayer quality. [...]
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2019-04-29
14:38
OpenAccess [FZJ-2019-02822] Book/Dissertation / PhD Thesis

Columnar Structured Thermal Barrier Coatings Deposited by Axial Suspension Plasma Spraying
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment 456, VI, 126 () = Dissertation, Univ. Bochum, 2018
Thermal Barrier Coatings (TBCs) providing thermal insulation for underlying metalliccomponents are widely used in turbine engines. Suspension Plasma Spraying (SPS) is apromising technology to produce TBCs [...]
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2019-04-16
07:41
OpenAccess [FZJ-2019-02712] Book/Dissertation / PhD Thesis

Construction and analysis of a spatially organized cortical network model
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Schlüsseltechnologien / Key Technologies 194, 245 pp. () = Dissertation, RWTH Aachen University, 2018
The cerebral cortex is one of the most intricate natural systems known, due to themultitude and heterogeneity of interconnected cells and its operation on differenttemporal and spatial scales. Cortical activity on the mesoscopic scale, spanningsquare millimeters to centimeters of cortical surface area, can be recorded withmulti-electrode arrays implanted in neural tissue. [...]
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2019-04-15
15:56
OpenAccess [FZJ-2019-02708] Book/Dissertation / PhD Thesis

Configurable frequency synthesizer for large scale physics experiments
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Information / Information 56, xxi, 114 () = Dissertation, Univ. Duisburg, 2019
This thesis describes the design and implementation of frequency synthesizers forthe ”Jiangmen Underground Neutrino Observatory (JUNO)” project as a physicalexperiment. The fully integrated analog phase-locked loop (PLL) based frequencysynthesizer is intended to generate the sampling clocks for the analog-to-digitalconverters (ADC) and digital signal processing (DSP) part. [...]
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2019-04-15
15:41
OpenAccess [FZJ-2019-02707] Book/Dissertation / PhD Thesis

Reformierung von BtL-Kraftstoffen für die HT-PEFC in luftfahrttechnischen Systemen
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment 454, IV, 313 () = Dissertation, RWTH Aachen University, 2018
The existing development trend towards „more electric aircraft” architectures means a steadygrowth in electrical power demand on board of aircrafts. For various reasons fuel cells may beideally suited for covering the electrical power demand of future commercial aircraft [...]
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2019-04-15
15:23
OpenAccess [FZJ-2019-02706] Book/Dissertation / PhD Thesis

Modellierung zeitlich aufgelöster Ladeenergienachfragen von batterie-elektrischen Fahrzeugen und deren Abbildung in einem Energiesystemmodell
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment 457, VIII, 189 () = Dissertation, Technische Universität Berlin, 2018
The need for climate protection and resource conservation, in combination with currenttrends in transportation, requires urgent action and the implementation of viable strategies.Today the contribution of electric transportation towards a climate‐neutral and efficienttransport system is not clear, given that the reduction potentials are determined to asignificant degree by the charging behavior of vehicle users. Thus far, sound empiricalexperiences of charging behavior has been lacking. [...]
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2019-04-15
15:04
OpenAccess [FZJ-2019-02704] Book/Dissertation / PhD Thesis

Monazite-type ceramics as nuclear waste form: crystal structure, microstructure and properties
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment 459, 194 pp. () = Dissertation, RWTH Aachen University, 2019
In the last decades, various single- and polyphase ceramic materials have been proposed as potential waste forms for the immobilisation of specific nuclear waste streams, such as separated plutonium from civilian or military sources unsuitable for further use, or separated minor actinides. Among them, phosphate-based materials with monazite structure emerged as promising candidates for ceramic nuclear waste forms due to their specific physico-chemical properties including high structural flexibility allowing for significant waste loadings, high chemical durability, and high resilience against radiation damage. [...]
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2019-04-12
09:11
[FZJ-2019-02613] Dissertation / PhD Thesis

Particle-Identification capability of the Straw Tube Tracker and Feasibility Studies for the Charmed-Baryon Program with PANDA
128 pp. () = Dissertation, University of Groningen, 2018

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