Thèse numérisée par la Direction des bibliothèques de l’Université de Montréal / Le travail présenté dans cette thèse se concentre sur la diffusion inélastique de neutrons de 14 MeV sur les premiers niveaux excités du carbone, de l'oxygène, et du lithium. Les mesures des sections efficaces différentielles ont été réalisées à des angles compris entre 30° et 130°. Le faisceau de deutérons, d'une énergie de 170 keV provenant de l'accélérateur Cockcroft-Walton, frappe une cible de tritium, produisant ainsi des neutrons de 14 MeV par la réaction T(d,n)He4. L'énergie des neutrons diffusés est déterminée par une méthode de temps de vol, utilisant la détection de la particule associée à la production du neutron pour connaître son temps de départ. Le temps de vol est converti en une impulsion de tension, qui est mesurée par un sélecteur d'amplitude à 100 canaux. La résolution temporelle du système est de 3 nanosecondes. Pour tous les niveaux excités observés, les courbes des sections efficaces différentielles inélastiques présentent une asymétrie par rapport à 90 degrés. Les résultats sont comparés aux prédictions du modèle d'interaction directe de Glendenning, et l'accord est satisfaisant pour tous les niveaux étudiés.

The decades after World War II were a time of growth and change for queer people across the country. Many chose to move to major metropolitan centers in order to pursue a life of openness and be part of queer communities. However, those people only account for part of the story of queer history. Other queer people chose to stay in small towns and create their own queer spaces for socializing and community building. The Gulf Coast of Florida is a place where queer people chose to create queer community where they lived through such actions as private house parties and opening bars. The unique place of the Gulf Coast as a tourist destination allowed queer people to build and join communication networks that furthered the growth of a sense of community leading ultimately to the founding of Bay AIDS Services and Information Coalition in 1989.

Η παρούσα διδακτορική διατριβή εστιάζεται στον χώρο των Φ/Β πλαισίων εναλλασσομένου ρεύματος (AC-PV Modules) με μετατροπείς δύο βαθμίδων, και πιο συγκεκριμένα σε μετατροπείς Σ.Τ. – Σ.Τ με τους οποίους επιτυγχάνεται ανύψωση της τάσης και μπορούν να αποτελέσουν την πρώτη από τις δύο βαθμίδες. Τρεις είναι οι κύριοι στόχοι: A)Η εύρεση της καταλληλότερης επιλογής για την πρώτη βαθμίδα της διάταξης σύνδεσης ενός Φ/Β πλαισίου στο μονοφασικό δίκτυο χαμηλής τάσης. B)Ο βέλτιστος σχεδιασμός και η επιλογή του κατάλληλου Πολλαπλασιαστή Τάσης. C)Ο βέλτιστος σχεδιασμός της μονάδας ανύψωσης τάσης, η οποία αποτελεί την πρώτη βαθμίδα, μιας διάταξης δύο βαθμίδων, για τη σύνδεση Φ/Β πλαισίου με το δίκτυο χαμηλής τάσης. Η μελέτη των τυπικών επιπέδων τάσης που εμφανίζονται σε διατάξεις διασύνδεσης δύο βαθμίδων απέδειξε την ανάγκη σχεδιασμού μετατροπέων Σ.Τ.-Σ.Τ. με υψηλά κέρδη τάσης, τα οποία δεν μπορούν να προσφέρουν οι κλασσικοί μετατροπείς. Το γεγονός αυτό αποτέλεσε το έναυσμα για τη διερεύνηση της λειτουργικής συμπεριφοράς των Πολλαπλασιαστών Τάσης και εστιάσθηκε στην εξαγωγή νέων απλών και ακριβέστερων μαθηματικών σχέσεων για τη λειτουργία τους, στον ορισμό και την υλοποίηση του βέλτιστου σχεδιασμού και τέλος στη βέλτιστη επιλογή των στοιχείων του κυκλώματος. Για τον καλύτερο δυνατό σχεδιασμό του ανυψωτή τάσης διεξάγεται τεκμηριωμένη σύγκριση μεταξύ διαφόρων δημοφιλών τοπολογιών Πολλαπλασιαστών Τάσης, καθώς και της μορφής της τάσης που θα τον τροφοδοτεί. Η εκτεταμένη έρευνα καταλήγει στην εφαρμογή θετικής παλμικής τάσης εισόδου, με τη χρήση μιας παραλλαγής του μετατροπέα Boost (Mod Boost), ενώ επικρατέστερος Πολλαπλασιαστής Τάσης είναι μία παραλλαγή του Half-Wave Cockcroft-Walton με πυκνωτή εξομάλυνσης (Modified Half-Wave Cockcroft-Walton with Smoothing Capacitor). Στα πλαίσια της διδακτορικής διατριβής προτείνεται επιπλέον ένας νέος επαναληπτικός αλγόριθμος, ο οποίος συνδυάζει επιτυχώς θεωρητικές εξισώσεις και προσομοίωση, έχοντας ως στόχο το βέλτιστο σχεδιασμό του σύνθετου ανυψωτή τάσης, ο οποίος ονομάστηκε “Mod Boost – Mod H-W C-W SC VM” και συνίσταται από τον τροποποιημένο μετατροπέα Boost και τον προαναφερθέντα Πολλαπλασιαστή Τάσης. Τα συμπεράσματα και τα θεωρητικά αποτελέσματα της παρούσας διδακτορικής διατριβής επιβεβαιώνονται μέσω της προσομοίωσης και της σύγκρισης με κατάλληλα εργαστηριακά πρωτότυπα. / The current PhD thesis focuses on the field of AC PV Modules using Dual-Steps Inverters and more specifically on DC-DC Converters that are voltage boosters and can act as the first one of the two stages of the inverter. Three goals are accomplished in this work: A)The optimum choice of the topology for the first stage of a dual steps inverter of an AC-PV Module connected to the single-phase low voltage utility grid. B)The optimum choice and design of the Voltage Multiplier. C)The optimum design of the first stage of a dual steps inverter of an AC-PV Module. The analysis of the typical voltage levels at the dual steps topologies turns the research interest to DC-DC Converters with voltage gain (more than 20) higher than what is typical for the classical topologies. Based on that, a theoretical analysis is held on Voltage Multipliers according to which the crucial magnitudes are highlighted and new, simple and accurate formulas are extracted, which describe the operation of the voltage multipliers. Moreover theoretical supported choices about the capacitances in every stage are suggested, an optimum design is determined and for its implementation new accurate easy-to-use formulas are extracted. For an optimal design of the voltage booster, well established comparisons are made between popular types of voltage Multipliers and voltage triggering sources. The intensive research leads to the use of a positive voltage pulsing source that is generated by a modified Boost converter (Mod Boost Converter). Moreover a modified Half-Wave Cockcroft-Walton with Smoothing Capacitor VM is set as the best choice among the studied Voltage Multipliers. Furthermore, a novel iterative optimum design algorithm is introduced, which uses both the theoretical equations of a VM optimum design and a simulation software, so as to make feasible an optimum design of the novel DC-DC Converter. The new converter, named Mod Boost – Mod H-W C-W SC VM, results from the series connection of the modified converters Boost and Half Wave Cockcroft Walton with Smoothing Capacitor VM. Finally, the conclusions and the theoretical analysis of this work are validated by PSPICE simulations and experimental results, extracted by measurements on laboratory prototypes.

My thesis explores the posthumous literary life in the early modern period by examining responses to ‘dead poets’ shortly after their deaths. Analysing responses to a series of literary figures, I chart a pre-history of literary biography. Overall, I argue for the gradual emergence of a linkage between an individual’s literary output and the personal life that predates the eighteenth century. Chapter 1 frames the critical investigation by contrasting examples of Lives written for authors living before and after my chosen period of specialisation. Both these Lives reflect changed attitudes towards the writing of poets’ lives as a result of wider discourses that the following chapters examine in more detail. Chapter 2 focuses on the events following the death of Robert Greene, an author often described as the first ‘professional’ English writer. The chapter suggests that Greene’s notoriety is for the most part a posthumous construct resulting from printed responses to his death. Chapter 3 is concerned with the problem of reconciling a poet’s life-narrative with the vita activa model and examines potential causes for the ‘gap’ between Sir Philip Sidney’s public life and his works, which continues to pose a challenge for biographers. Chapter 4 examines the evolution of Izaak Walton’s Life of Donne. The ‘life history’ of Walton’s Lives, particularly the Life of Donne, reflects an accidental discovery of a biographical technique that anticipates literary biography. My method is mainly based on bibliographical research, comparing editions and making distinctions between them which have not been made before, while paying particular attention to paratextual materials, such as dedications, prefaces and title pages. By investigating assumptions about individual authors, and also authorship in general, I hope to shed some light on a promising new area of early modern scholarship and direct greater scrutiny towards the assumptions brought into literary biography.

This thesis aims to make a significant contribution to our understanding of the history of biblical criticism in the seventeenth century. Its central objective is to put forward a new interpretation of the work of the Oratorian scholar Richard Simon. It does so by placing Simon's work, above all his Histoire critique du Vieux Testament (1678), in the context of the great increase in critical study of the text of the Bible that occurred after 1620. The problems and questions that confronted European scholars at this time were profound, as new manuscript discoveries combined with existing learned and polemical debates in such a way that scholars were forced reconsider their opinions on the history and text of the Old Testament. Rather than study these works solely in the discrete tradition of the history of scholarship, however, this thesis shows why they have to be considered in the context of the print culture that made their production possible, the confessional divisions that shaped and deepened the significance of their philological arguments, and the intellectual cooperation, exchange, and disagreement that determined how contemporaries understood them. The results of this research contribute to existing scholarship in several significant ways, of which four stand out for special emphasis. First, through extensive archival research it markedly revises our current understanding of the work of Jean Morin, Louis Cappel, Johannes Buxtorf II, and Richard Simon. Second, it shows that the history of biblical criticism must consider the work of Catholic scholars in the same level of detail as Protestant scholars. Third, it breaks the link between innovative philological and historical work and radical theological or political thought. Fourth, it calls into doubt the current consensus that seventeenth-century scholarly life is best understood through the concept of the international and inter-confessional 'Republic of Letters'.

This is a study of the fifteenth-century, “Storie of Asneth,” a late-medieval English translation of a Jewish Hellenistic romance about the Patriarch, Joseph, and his Egyptian wife, Asneth (also spelled Aseneth, Asenath). Belonging to the collection of stories known as The Old Testament Pseudepigrapha and derived from Jewish Midrash, the story was widely read among medieval religious in England in Latin before being translated into the vernacular for devotional purposes. Part of this study considers and identifies the aristocratic female patron (Elizabeth Berkeley) and author (John Walton) of the fifteenth-century Middle English text, based on literary, historical, and manuscript evidence from the sole surviving copy of the text in Huntington Library EL.26.A.13, a manuscript once owned by John Shirley. Also explored is the ritualistic pattern of events in the text (original to its Hellenistic origins) that coincides with ancient female initiation rites as we understand them from recent studies of Greek mythology. Centred in the narrative, culminating Asneth’s liminal seclusion, is her sacred marriage with a heavenly being. The argument suggests that in the Middle Ages this sacred consummation would have been interpreted as the union of God with the soul, similar to the love union in the Song of Songs. In the Christian tradition it is referred to as mystical marriage. Early Christian exegesis supports that Joseph was considered a prefigurement of Christ in the Middle Ages. In her role as divine consort and Joseph’s wife, Asneth would also have been identified as a type of Ecclesia in the Middle Ages—the symbolic bride of Christ. Patterns of female initiation in the story are also reflected in the hagiographical accounts of female saints, female mystics, and the ritual consecration of nuns to their orders, especially where they focus on marriage to Christ. The similarity of Asneth with Ecclesia, and therefore Asneth’s identity as a type of the church in the Middle Ages, is then explored in the context of the theology of the twelfth-century Cistercian prophet, Joachim of Fiore. The thirteenth-century Canterbury manuscript, Cambridge Corpus Christi College MS 288 (CCCC MS 288), which holds a Latin copy of Asneth also contains one of the earliest Joachite prophecies in England, known as Fata Monent. The study suggests Asneth may have held theological currency for early followers of Joachim of Fiore in England. / Graduate

Moving parts cause vibrations and tend to wear out. In applications where maintenance is complicated, solutions without moving parts are therefore advantageous. Electrohydrodynamic pumps are such a solution. Instead of mechanical propulsion, they use strong electric fields to induce movement in a dielectric cooling liquid. These pumps require very little power, but to generate sufficiently strong electric fields, they need to be fed with very high voltage.  This project explored various methods for designing DC/DC-converters which fulfil the demands of an electrohydrodynamic pump. This was done by altering and combining existing topologies that were deemed to be relevant. The main method for testing and evaluation was by simulating in LTspice. The project also briefly investigated methods of overcurrent protection. This was relevant because gas bubbles in the cooling fluid can cause electric arcs which damage the pumps. Three converter topologies were chosen for further evaluation. First, a conventional resonant Royer-based converter that has previously been used by APR Technologies which was altered by the inclusion of a feedback loop. Second, a high-frequency resonant Royer-based converter with a planar air-core transformer. Third, a transformerless converter with a switched boost converter IC. All circuits included a Cockroft-Walton voltage multiplier bridge. The two resonant Royer-based converters fulfilled all requirements except the one on efficiency, while the transformerless converter fulfilled all requirements except the one on cost, set by APR. The more expensive transformerless converter had a significantly higher efficiency and a wider range of acceptable input voltages. Furthermore three general conclusions were drawn. The first was that planar air-core transformers are not beneficial compared to conventional transformers in these type of applications. The second was that a discrete voltage regulator controlled by feedback from the output is more effective than using a voltage regulator without feedback, as it also eliminates temperature and load variations. The third conclusion was that to protect the circuits from overcurrent, a large series resistor is needed, which causes significantly lowered efficiency.