2,291 research outputs found
Studies of extended area tin dioxide anodes
No full textDoped tin dioxide coatings on titanium have been prepared by the thermal decomposition method and characterised by cyclic voltammetry with the Fe(CN)64-/Fe(CN)63- couple. Electron transfer was shown to be fast and fully reversible, and the IR drop in the film was low. High capacitive currents indicate that the desired high area surfaces were obtained. Large current densities of up to 8 kA m-2 were passed without altering the coating. The anodes have been analysed by Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Analysis (EDAX) and the best coating conditions were found to be a sandblasted and chemically etched Ti substrate, a precursor solution containing 20 % w/v SnCl4 + 0.2 % w/v SbCl3 in 2-propanol and a decomposition temperature of 773 K.Accelerated long-term tests were carried out in a temperature-controlled beaker cell at 303 K at an applied potential of +2.2 V vs SCE in acid solution, where oxygen evolution occurred on the anode. After an initial decay in current, typical for DSA-type anodes, currents were constant. Cyclic voltammetry, SEM and EDAX before and after the lifetime tests revealed no change in coating after more than 1000 hours of continuous operation.SnO2 was deposited onto expanded titanium metal meshes and fabricated into 3-dimensional anode stacks. Mass transport properties of two different anode mesh sizes were studied using a batch recycle system including an undivided cell with the anode operating in the flow-by mode. The ferro-/ferricyanide couple was used in conjunction with linear sweep voltammetry to characterise the mass transport regime within the cell as a function of electrolyte velocity. It was confirmed that the use of stacks of SnO2 coated Ti meshes leads to a substantial enhancement of the mass transport limited current compared to a flat plate anode, and the increase in current was higher with the finer of the two types of mesh used. The increase in limiting current was proportional to the number of meshes in the stack (up to at least 8 meshes); therefore, the current scaled with the anode area. The mass transport controlled current was >200 mA cm-3 for a stack of 8 fine meshes and a reactant concentration of 5 mM Fe(CN)64-. Mass transport coefficients compare well with those reported in the literature for similar materials. Velocity exponents of 0.4 - 0.6 confirm that there was turbulent flow throughout the range of velocities and different anode stacks tested.High current densities for the oxidation of EDTA were found, although the oxidation of other organic compounds (phenol, formaldehyde) showed more complex behaviour.</p
Copia Mandati Paenalis Sine Clausula In Sachen Lippischer Vormunder Contra Lipp
No full textWidmungsempfänger: Johan Bernhard, Graff und Herr zu der Lipp; Otto Heinrich, Graff und Herr zu der Lipp; Herman Adolph, Graff und Herr zu der Lipp; Christian Graff zu Waldeck; Catharina geborne Grävin zu Waldeck und Grävin zu der Lipp Wittib; Simon Philip; Hermann Otto; Ludwig ChristianVorlageform des Erscheinungsvermerks: Getruckt zu Speyer im Jahr 1637
Reconstructing Beethoven: Mauricio Kagel’s Ludwig van
No full textThe subject of this dissertation is Ludwig van, Mauricio Kagel’s tribute to Beethoven on the occasion of the 200th anniversary of the latter’s birth, which consists of three separate, but closely related, versions: a film, a musical score and a recording. The main aim of this project is to analyse the performance problems that musicians have to face when realising the score Ludwig van, which is an entirely indeterminate collage of Beethoven’s music, and to suggest ways of tackling them. For this purpose, all three versions of the work are studied in this thesis. The film is examined in terms of the issues it raises concerning Beethoven’s reception and of the function of its music, which consists of unusual performances of Beethoven’s works. The score is analysed from the perspective of postmodern theory and 20th-century art movements, while the roles of the composer and the performer are discussed and redefined. The recording is studied as a sample of how Kagel himself chose to realise his own score. Finally, the difficulties I encountered in my own attempts to realise Ludwig van are discussed, and the ways in which I dealt with them are presented. The conclusion at which this dissertation arrives is that, in works of such indeterminacy as Ludwig van, the performers are required to step outside their conventional role and act partly as composers. Compared to works that are considered challenging to the performer in the conventional sense, of requiring technical virtuosity, this work presents a more fundamental challenge, which has to do with overcoming personal boundaries: it asks the performer not to execute a pre-composed work, but to create their own version of Ludwig van. Since very little has been written about Ludwig van by performers with an academic background, this thesis can offer valuable assistance to prospective performers of the work in their attempt to balance between the highly charged conceptual aspect of the composition and the practical need to achieve its successful performance
The birth of the (non) European author
No full textThe Birth of the (Non)European Author draws attention to the power relations between subaltern authors and the field of publishing, especially focusing on the ownership of author rights and the representation of authorship. By particularly concentrating on the creation and marketing of "indigenous authorship" and "marginality" as goods on the global book market, the relationship between "subaltern/marginalised" authors and agents of the book market, such as editors and publishers is highlighted as unbalanced and precarious.
This book traces the genre testimonial narration, from slave narratives to African-American child soldier memoirs, analysing the relationship of Western publishing modes and what is being sold as “African authorship”. Combining explorations of theories of representation and authorship with close readings of testimonial narrations and the analysis of the relationship between professional writer and witness, this book contributes to the field of postcolonial theory, globalization studies and book history.
Anna-Katharina Krüger studied Comparative Literature at the Ludwig-Maximilians University in Munich and Book History at the Oxford Brookes University. As a scholar of the DFG research training group "Globalization and Literature - Representations, Transformations, Interventions" she finished and defended her dissertation in 2017. Her research focus lies on postcolonial literature, authorship and representation theory as well as testimonial narration
Ludwig-Maximilians-Universität München: What does a university look like?
No full textLudwig-Maximilians-Universität München
About the Researchers
The network above represents a connected graph of 15,558 co-authored researchers affiliated to the Ludwig-Maximilians-Universität München from 2017-2022, making up 91% of all affiliated researchers over this time period. Each researcher has been colour coded by the 2-digit FoR 2020 code they are most associated with. Each researcher is depicted by a sphere, and given a size based on the number of publications produced.
About the Clusters
181 research clusters were identified in the network above. To make the network easier to read, collaborations between clusters are not displayed, although they do play a significant role in the layout of the network. Clusters of 20 or more researchers can be explored further in the associated figshare record (linked in the QR code top right of legend). Clusters are colour coded by the most dominant discipline of the researchers within them, and are given a ‘height' based on the discipline that they proportionally belong to. Biomedical and Clinical Sciences clusters sit at the base of the network, with Language, Communication and Culture sitting at the top.
About the Classifications
The 2020 Field of Research codes used in this analysis have been assigned to publications using the approach detailed in “Recategorising research: Mapping from FoR 2008 to FoR 2020 in Dimensions” (https://doi.org/10.1162/qss_a_00244.) Note: some research areas are not well represented in the network due to single author publications.
Fields of Research with greater than 50% of their output not represented in the network include: Mathematical Sciences (57.6%), Human Society (59.58%), Commerce, Management, Tourism and Services (62.41%), Economics (63.91%), Language, Communication and Culture (65.52%), History, Heritage and Archaeology (69.95%), Law and Legal Studies (70.78%), and Philosophy and Religious Studies (82.05%)
Methodology:
Graph layout: Batchlayout [1]
Clustering: Leiden Algorithm [2]
3d Layout: Blender [3]
Data: Dimensions [4]</p
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