383 research outputs found
Effects of Oxygen in Gamma Irradiated Aromatic Polyesters in Film
No full textThe effect of gamma irradiation in air is investigated on four thermoplastic polyesters (PET, PBT, PEN, PCT-co-ET) in
films containing aromatic rings, in order to evaluate the influence of aromatic density and the role of oxygen on radiation
resistance. Physical–chemical–nuclear analyses were used to this purpose. EPR measurements were carried out to detect
radical stability against oxygen permeation. Viscometric investigations reported a very similar trend for all the investigated
polyesters: a chain break effect that decreases at the highest doses. FT-IR analyses focused on the formation of oxidized
species. Positron annihilation spectra pointed out a decrease of the intensity of ortho-positronium formation, while its lifetime
remains unchanged with radiation dose
Gamma irradiation of PolyEthyleneTerephthalate and PolyEthyleneNaphthalate
No full textThe effect of gamma irradiation in air is investigated in two thermoplastic polyesters (PET and PEN), in order to evaluate the influence of aromatic density and the role of oxygen on radiation resistance. EPR measurements were carried out to detect radical stability against oxygen permeation and to provide radical characterization. Viscometric data reveal a different behaviour between films and thick samples. Positron annihilation spectra show a decrease of ortho-positronium intensity, which is more marked in film samples. ortho-positronium lifetime does not depend on the radiation dose
What Language does Ugo Tudešak speak?
No full textThis work is an analysis of the two phenomena regarding the character of Ugo Tudeško in Držić’s comedy Dundo Maroje. The first part speaks about some characteristics of Italian-German »macaronics« regarding the different sources and models which the author could know while creating this character. The other part is dedicated to »the case of Ugo Tudeško« from the adaptation and direction of Dundo Maroje (Zagreb, 1938) during the time of The Independent Republic of Croatia, when the repertoire success of the time, without any explanation, disappeared at the end of 1943 from the repertoire of The Croatian national Theatre, supposedly due to the caricatural characteristics of German Ugo
UGO FOSCOLO: INTELECTUAL, POETA, ENSAÍSTA
No full textThe Italian author Ugo Foscolo (1778-1827) developed his literary activity in avery peculiar moment of Italian history: the instauration of Napoleon’s government in thepeninsula. Foscolo has not remained apathetic to the political matters which affected his time,and this article aims to analyze how the author’s ideas on the function of poetry are related to hisactivities as an intellectual, essayist and critic of society.O autor italiano Ugo Foscolo (1778-1827) desenvolveu a sua atividade literária nummomento muito peculiar da história italiana: a instauração do governo napoleônico na península.Foscolo não se manteve apático às questões políticas que afligiam o seu tempo, e o presenteartigo objetiva analisar como as idéias do autor sobre a função da poesia se relacionaram com asua atividade de intelectual, ensaísta e crítico da sociedade
Gamma irradiation of polyester films
No full textIrradiation in air of several thermoplastic aromatic polyesters was carried out in order to investigate changes in characteristic
properties. Polymers are irradiated at high doses, until 1 MGy, and no drastic changes seem to emerge. Dielectric and resistance
measurements are carried out in order to evaluate changes in electrical insulation property; moreover, nanoholes dimensions, analyzed by positron spectroscopy, are measured in pristine and irradiated polyesters. The study shows good durability of this kind of polyesters, due to the aromatic rings able to stabilize the polymeric chains towards ionizing radiations and able to preserve the original structural, electrical and permeability properties
Pratiche dell'architettura in Vittorio Ugo (1957-1987)
No full textLa ricerca verte sulla figura di Vittorio Ugo (1938-2005), architetto e urbanista palermitano , docente presso la Facoltà di architettura di Palermo dal 1964 al 1987. Della complessa attività di Ugo, che nella seconda fase si svolge principalmente a Milano, la tesi mette a fuoco il periodo 1957-1987, anni che comprendono la formazione universitaria e la sua poco nota attività di architetto e urbanista a Palermo.Vittorio Ugo (Palermo, 1938-2005) is an Italian architect, mostly known in Italy and France as theorist and a critic as well, Professor at University of Palermo from 1964 to 1987. Much less known is his architectural work as author of projects on different scales: architecture, urban-planning, design. The years from 1957 to 1987 represent a sort of long training period, which prepare the second phase of Ugo’s biography, devoted exclusively to the Theory of Architecture. Born from a family of artists - his grandfather was a sculptor, his father an architect - he was looking for an original way to be an architect, feeling an ethical need to see architecture from a scientific point of view. The main argument of this research, starts from the belief that the fame of Vittorio Ugo as a theorist, together with his open International impulse - France and Japan were his second homeland – conceals a complex "apprenticeship ", yet to be revealed. Many of his former pupils wondered who he was, where he came from, what had determined his passion of teaching and the care he devoted to his students. In 1978, he was living in Paris attending the heated debates that took place at the prestigious Ecole des hautes études en sciences sociales, inside the courses of Louis Marin and Hubert Damisch. «[...] Que venait chercher Victor Hugo auprès de cette école de pensée sémiologique?» What was Vittorio Ugo looking for in that school of semiological thought? Philippe Potié was asking a few years ago. How to explain the choice of Ugo to devote himself to the Theory, after twenty years of designing
A crítica literária na Itália napoleônica: avaliações e contribuições de Ugo Foscolo The literary criticism in Napoleonic Italy: assessments and contributions of Ugo Foscolo
No full textO artigo analisa as ideias do autor italiano Ugo Foscolo (1778-1827) sobre acrítica literária presente nos seus ensaios sobre literatura, e demonstra como ametodologia proposta pelo autor contribuiu para a renovação da crítica literáriana Itália entre os séculos XVIII e XIX.This paper analyses the ideas of the Italian author Ugo Foscolo (1778-1827) aboutthe literary criticism contained in his essays about literature, and demonstrateshow the metodology proposed by the author contributed to the renewal of theliterary criticism in Italy between the eighteenth and nineteenth centuries.</div
Le "point de départ". Vittorio Ugo, architecte à Palerme dans les années soixante
No full textVittorio Ugo (Palermo, 1938-2005) is an Italian architect, known mostly in Italy and France as theorist and critic. Whereas, much less known is his architectural work as author of projects on different scales: architecture, urban-planning, design, which Ugo himself, later on, would have considered as a pastime of his young age. In his practice of architecture, the author of the article see, on the contrary, the roots of his theoretical thought. Born from a family of artists - his grandfather was a sculptor, his father an architect - he was looking for an original way to be architect, feeling an ethical need to see architecture from a scientific point of view. Getting back to the work of Vittorio Ugo means to take the distances from the glamour, the show-business that involves, in our time, architects and architecture and it permits us to return to the essential aims of a discipline which exists to create - and to improve - the human habitat
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