402 research outputs found
Author's gift inscription, in The heather on fire; a tale of the Highland clearances
This edition includes an author's gift inscription, "To Mrs John Dillon with sincere esteem Mathilde Blind".Blind, Mathilde, 1841-189
Synthèse et caractérisation d'un acier ODS préparé par un procédé inspiré du broyage réactif - Etude de l'influence des conditions de broyage et recuit.
In the framework of ODS (Oxide Dispersion Strengthened) steels development for application as core materials in future nuclear reactors, a new process based on a reactive-inspired ball-milling, which consists in using YFe3 and Fe2O3 instead of Y2O3, and the influence of synthesis conditions on nano-oxides features were studied. To do so, ODS steels were prepared by ball-milling and annealing and then multi-scale characterizations were done after each step of the process. Atom probe tomography and small angle neutron scattering were used. It was shown that reactive-inspired ball-milling process was efficient for ODS steel synthesis, although it does not modify nano-oxides features. Broadly speaking, the nature of milling reactants has no impact on nano-oxides formation. Moreover it was proven that nano-oxides nucleation can start during ball-milling and afterwards it continues during annealing with a very fast kinetic. The features of nano-oxides formed in this way can be controlled through variations of ball-milling parameters (intensity, temperature and atmosphere) and annealing parameters (duration and temperature). Finally, it was shown that controlling ball-milling conditions was necessary to control the ODS steel final state.Dans le cadre du développement des aciers ODS (Oxide Dispersion Strengthened) pour le cœur des réacteurs nucléaires du futur, ce travail s'est focalisé sur l'étude d'une nouvelle voie de synthèse inspirée du broyage réactif, consistant à remplacer le réactif Y2O3 par YFe3 et Fe2O3, et sur l'influence des conditions de synthèse sur les caractéristiques des nano-oxydes. Pour cela, des aciers ODS ont été synthétisés par broyage et recuit et des caractérisations multi-échelles ont été effectuées après chaque étape de la synthèse. En particulier, on a utilisé la sonde atomique tomographique et la diffusion des neutrons aux petits angles. On a ainsi montré que le procédé inspiré du broyage réactif permet la synthèse d'un acier ODS mais qu'il ne modifie pas les caractéristiques des nano-oxydes. Plus généralement, la forme des réactifs de broyage n'a pas d'influence sur la formation des nano-oxydes. Ensuite, on a mis en évidence que la germination des nano-oxydes pouvait commencer au cours du broyage avant de se poursuivre avec une cinétique très rapide au cours du recuit. Les caractéristiques des nano-oxydes ainsi formés peuvent être contrôlées en faisant varier les paramètres de broyage (intensité, température et atmosphère) et de recuit (durée et température). Enfin, on a montré qu'il était nécessaire de contrôler les conditions de broyage pour maîtriser l'état final d'un acier ODS
Gender and pedagogics - Mathilde Vaerting, professor of educational science (Jena, 1923-1933)
Der Aufsatz skizziert Leben und Karriere von Mathilde Vaerting (1884-1977), der ersten Professorin für Erziehungswissenschaft in Deutschland, Jena 1923-1933. Ihr Hauptwerk „Neubegründung der Psychologie von Mann und Weib", 1921ff., wird unter Aspekten der Forschungslogik analysiert und auf Konsequenzen für die Erziehungswissenschaft befragt. Ihre Forderung nach Gleichberechtigung und Abwehr jeglicher Herrschaft werden vor dem Hintergrund heutiger feministischer Forderungen diskutiert. Im Anschluß an die Betrachtung der zeitgenössischen Rezeption Mathilde Vaertings wird die Frage aufgeworfen, inwieweit ihr Leben und ihre Karriere die Stellung der Frau in der Wissenschaft während der zwanziger Jahre (und auch später?) spiegeln. (DIPF/Orig.)The author outlines the biography and career of Mathilde Vaerting (1884-1977), the first woman to hold a chair in educational science in Germany. Her major work - Neubegründung der Psychologie von Mannund Weib (1921 fol.) - is analyzed from a methodological point of view and with respect to its implications for educational research. Vaerting\u27s demands for equal rights for women and her rejection of any kind of domination are discussed within the framework of present feminist positions. After having studied how contemporaries reacted to Mathilde Vaerting\u27s writings, the author raises the question of whether Vaerting\u27s life and career reflect the Status of women in science during the 1920s (and later on?). (DIPF/Orig.
Thermodynamic, microstructural and mechanical study of complex concentrated alloys strengthened by precipitation for high temperature structural applications
Afin d’augmenter la température de fonctionnement et donc le rendement, de nouvelles classes d’alliages métalliques sont recherchées pour les turbines à basse pression présentes dans le dernier étage des turboréacteurs. Les Alliages à Haute Entropie (AHEs) forment des solutions solides fortement substituées et sont considérés comme des candidats potentiels pour devenir la matrice d’alliages renforcés par précipitation. Ainsi, les alliages issus du système sénaire Al–Ti–Cr–Fe–Co–Ni et comportant une matrice cubique à faces centrées (cfc) et une phase ordonnée de structure L12 pourraient constituer une solution idéale. Ainsi, l’objectif de cette étude est de déterminer le rôle de la composition chimique sur la stabilité des phases et sur les propriétés à haute température des alliages cfc+L12 du système Al–Ti–Cr–Fe–Co–Ni. La finalité est de déterminer le potentiel de ces alliages à répondre au cahier des charges exigeant des pièces présentes dans les turbines à basse pression. Dans un premier temps, des calculs massifs utilisant l’approche CALPHAD (Calculation of Phase Diagrams) ont été effectués, permettant de mettre en lumière le rôle de chaque élément et de définir les frontières du domaine biphasé cfc+L12 dans le système sénaire. Ces calculs montrent l’importance du quaternaire Al–Ti–Co–Ni dans l’obtention de microstructures cfc+L12. A l’inverse, les additions de Cr et Fe réduisent le nombre d’alliages d’intérêt en diminuant l’étendue du domaine biphasé de manière significative et tendent à promouvoir la formation de phases indésirables. Cette première étape a permis de sélectionner huit alliages possédant la microstructure cfc+L12 désirée, qui ont ensuite été élaborés puis caractérisés. Les résultats obtenus mettent en évidence un accord satisfaisant entre les données prédites et expérimentales. Par la suite, la cinétique de coalescence des précipités ordonnés L12 dans quatre nuances a été évaluée. A ce titre, la taille moyenne des précipités ainsi que la distribution en tailles ont été mesurées à la suite de traitements thermiques à trois températures (850°C, 900°C et 950°C) pour cinq temps de traitement, de 30 minutes à 70 heures. L’analyse des résultats permet de mettre en évidence une énergie d’activation pour la coalescence élevée par rapport aux alliages standards. Finalement, les propriétés mécaniques ont été évaluées afin de mesurer le potentiel de ces matériaux concentrés complexes pour des applications aéronautiques à haute température.In order to increase the operating temperature and the efficiency of turbomachines, new classes of metal alloys are needed. High-entropy alloys form highly substituted solid solutions and are considered as potential candidates to become the matrix of precipitation-strengthened alloys. Hence, alloys in the Al–Ti–Cr–Fe–Co–Ni senary system with both a face-centered cubic matrix (fcc) and a L12 ordered phase could be an interesting new materials solution. Thus, the objective of this study is to determine the role of chemical composition on the phase stability and on the high-temperature properties of these alloys. Ultimately, the aim is to assess the potential of theses alloys to meet the set of specifications required for moving parts in low pressure turbines. First, high-throughput calculations were carried out with the CALPHAD (Calculation of Phase Diagrams) approach to define the characteristics (role of the elements, limits, etc.) of the two-phase fcc+L12 domain in the system. These calculations evidence the importance of the Al–Co–Ni–Ti quaternary system which is found to be the key component giving rise to the fcc+ L12 two-phase region in the highest order system. Conversely, additions of Cr and Fe reduce the number of interesting alloys by significantly reducing the extent of the two-phase domain and tend to promote the formation of undesirable phases. This first step allowed the selection of eight alloys with the desired fcc+L12 microstructure, which were then prepared and characterized. The results highlight a satisfactory agreement between the predicted and experimental data. Subsequently, the coarsening kinetics of the L12 ordered precipitates were evaluated in four alloys. As such, the mean precipitate size as well as the size distribution were measured following heat treatments at three temperatures (850°C, 900°C and 950°C) for five treatment times, from 30 minutes to 70 hours. The analysis of the results reveals a high activation energy for coarsening compared to conventional alloys. Finally, the mechanical properties were evaluated in order to assess the potential of these complex concentrated materials for high-temperature aeronautics applications
Effi Briest, Mathilde Möhring. The Development of Theodor Fontane's Female Characters on the Background of Women Emancipation.
Theodore Fontane is best known as the author of numerous women's novels, which he wrote in the last ten years of his life. This diploma thesis deals with the topic of women's emancipation on the basis of textual analysis of two latter novels by Theodore Fontane - Effi Briest and Mathilde Möhring. In the first part, it characterizes the topic of the period women's emancipation and puts the author's biography into context. In the second part, it creates the picture of position of the main women characters. The last part describes the personal development of the women characters, on the basis of which I determine how much the women's emancipation reflects in the author's work and what is his attitude towards it. This thesis deals with the interpretation of the author's intent to illustrate the creation of an advanced character like Mathilde Möhring. Key words: Theodore Fontane, women's emancipation, Effi Briest, Mathilde Möhring, development of women's characters, women's novels, interpretation, author's intent, counterpoin
Effi Briest, Mathilde Möhring. Vývoj postavy žen na pozadí dobové emancipace ve stejnojmenných románech Theodora Fontana.
Theodore Fontane is best known as the author of numerous women's novels, which he wrote in the last ten years of his life. This diploma thesis deals with the topic of women's emancipation on the basis of textual analysis of two latter novels by Theodore Fontane - Effi Briest and Mathilde Möhring. In the first part, it characterizes the topic of the period women's emancipation and puts the author's biography into context. In the second part, it creates the picture of position of the main women characters. The last part describes the personal development of the women characters, on the basis of which I determine how much the women's emancipation reflects in the author's work and what is his attitude towards it. This thesis deals with the interpretation of the author's intent to illustrate the creation of an advanced character like Mathilde Möhring. Key words: Theodore Fontane, women's emancipation, Effi Briest, Mathilde Möhring, development of women's characters, women's novels, interpretation, author's intent, counterpointTheodor Fontane je známý především jako autor četných ženských románů, které psal ve svém pokročilém věku. Tato práce zpracovává na základě analýzy textu téma ženské emancipace v jeho dvou pozdějších románech - Manželství Effi Briestové a Mathilda Möhringová. V první části charakterizuje téma dobové ženské emancipace a zasazuje autorovu biografii do kontextu. V druhé části utváří obraz pozice hlavních románových hrdinek. V poslední části je shrnut osobní vývoj ženských postav, na jejímž základě má být zodpovězena otázka, nakolik se ženská emancipace odráží v autorově díle a jaký je jeho postoj k ní. Práce se zároveň zabývá intepretací autorova záměru, který vytvořil postavu pokročilé Mathildy Möhringové, čímž dosáhl kontrapunktu k tomu, co doposud psal. Klíčová slova: Theodor Fontane, ženská emancipace, Effi Briest, Mathilde Möhring, vývoj ženských postav, interpretace, ženské romány, záměr autora, kontrapunktInstitute of Germanic StudiesÚstav germánských studiíFilozofická fakultaFaculty of Art
Conception d’alliages métalliques innovants : contrôler la microstructure et les propriétés mécaniques par la composition chimique et les conditions d’élaboration
Tunisian Politics in France: Long-Distance Activism since the 1980s
International audienceWhat does it mean to oppose or support an authoritarian regime from afar? During the years of Ben Ali's dictatorship in Tunisia between 1987 and 2011, diaspora activism played a key role in the developments of post-independence Tunisian politics. Centring this study on long-distance activism in France, where the majority of leftist and Islamist exile groups took refuge, Mathilde Zederman explores how this activism helps to shed new light on Tunisia's political history. Tunisian Politics in France closely explores the interactions and conflicts between different constellations of pro-regime and oppositional actors in France, examining the dynamics of what the author persuasively describes as a 'trans-state space of mobilisation'. In doing so, Zederman draws attention to the constraints and possibilities of long-distance activism. Utilising material gathered from extensive fieldwork in France and Tunisia, this study considers how the evolution of diaspora activism both challenges and reinforces the boundaries of Tunisian politics
Book review: Photography of protest and community: the radical collectives of the 1970s by Noni Stacey
In Photography of Protest and Community: The Radical Collectives of the 1970s, Noni Stacey shows how a 1970s network of London-based photography collectives raised fundamental questions about the politics of photography, the role and responsibilities of photographers in relation to local communities and the uses of photography in the context of social activism. This book is a welcome addition to the expanding field of research on the photography of protest, writes Mathilde Bertrand, contributing to the ongoing documentation of this strong current in British photographic history. If you are interested in this book review, you can read an LSE RB interview with author Dr Noni Stacey. The archive of the Exit Photography Group is held at LSE Library; readers can find out more about the archive and the catalogue. Photography of Protest and Community: The Radical Collectives of the 1970s. Noni Stacey. Lund Humphries. 2020
Piano music of Mathilde Kralik von Meyrswalden (1857-1944)
Thesis (D.M.A.)--Boston University
PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at [email protected]. Thank you.This dissertation examines the life and music of Mathilde Kralik von Meyrswalden (1857-1944), with a focus on her piano solo works. This project is intended to bring new light to the forgotten late-romantic Austrian composer. As a pupil of Anton Bruckner, and as a colleague of Gustav Mahler, Kralik's style belongs to the late Romantic period in Vienna. Her musical aesthetics are similar to the styles of Schubert, Liszt, Schumann, Wolf, Mahler, and StraufS; however she had her
own unique voice from the beginning of her musical career. Though she was an active composer, performer, and musical figure of her time and was recognized and respected by the Viennese society, her life and work remain greatly understudied.
Chapter 1 presents a detailed biographical background of Mathilde Kralik von Meyrswalden. Chapter 2 provides a complete list of work by Mathilde Kralik. Chapter 3 depicts the political background of her time, and then discusses the situation of women as artists in Vienna between 1850 and 19 50. Chapter 4 focuses on two people in her closest circle: her elder brother, Richard Kralik, who was a renowned writer and cultural commentator; and her friend, Alice Scarlates, who was a lecturer for Roman language at the University of Vienna and lived with Kralik in the same house in Wiener Cottage-Viertel for over 30 years. Chapter 5 analyzes her 5 Klavierstiicke- Festmarsh, Triiumerei, Liedchen, Intermezzo, and Gavotte. Chapter 6 continues the analysis with her other major piano solo work: Priiludium, Passacaglia, und Fugato. Lastly, Chapter 7 discusses the public and critical reception of her music, both during her time and in the modern era.
The purpose of this project is first, to discover new sounds from a past style; second, to give credit to a serious, prolific, and independent female composer, who bravely chose a career with special challenges in her time and her surroundings; third, to encourage further research and performances of Kralik's works
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