228 research outputs found
Computational Analysis of the Effects of Fiber Deformation on the Microstructure and Permeability of Blood Oxygenator Bundles
No full textMechanical loads on the polymeric fibers of oxygenating bundles are commonly present due to bundle press-fitting during device assembly and blood pressure load. However, computational fluid dynamics (CFD) simulations for fiber bundle optimization neglect possible changes in microstructure due to such deformations. The aim of this study is to investigate the impact of fiber deformability on bundle microstructure and fluid dynamics mainly in terms of permeability. Fibers from commercial mats typically used for blood oxygenators were mechanically tested and based on these experimental data, a material model was developed to simulate the structural deformations the fibers undergo under press-fitting and blood pressure loads. Then, CFD simulations were performed on deformed bundle repetitive units to investigate permeability under varying loading conditions. The effects of different bundle geometric parameters on the variation of bundle permeability due to press-fitting were evaluated. Bundle press-fitting results in significant changes in microstructure that are reflected in a bundle permeability more than halved for a 15% press-fitting. This impact on permeability is present in all the simulated fiber bundles and becomes more pronounced as the pitch between fibers and thus bundle porosity decreases. Instead, the analyses on pressurized bundle show only small deformations caused by pressure load, with permeability changes below 1%. While blood pressure effects could be neglected, bundle press-fitting turns out to have a significant impact on bundle microstructure and permeability. Neglecting such microstructure variations during CFD simulations could also lead to incorrect assessment of the local fluid dynamics within the bundle
Syria Poletti, una inmigrante con mirada de viajera
No full textSyria Poletti is an Italian immigrant who arrived in Argentina in 1938, when she was 21 years old. After learning Spanish, she wrote her entire literary production in that new language. Due to this uniqueness, the author did not hesitate to conceive herself as an Argentine writer. In her first novel, Gente conmigo (1962), Poletti fic- tionalized elements of her biography and constructed a particular discourse where, in addition to recovering her experience as an immigrant, she also incorporated her gaze as a “European traveler”, judging by the inclusion of interpretive images about Argentina and the nature of its inhabitants. Based on this hypothesis, the objectives of this work will be: to trace the three perspectives from which the author produces–as an Italian immigrant, as a “European traveler” and as an Argentine writer–; analyze the trip based on a reconfiguration of her identity and, finally, identify the strategies she deploys to deliver her interpretation of ArgentinaSyria Poletti es una inmigrante italiana que arribó a la Argentina en 1938, cuando contaba con 21 años de edad. Tras aprender el español, escribió toda su pro- ducción literaria en esa nueva lengua. Debido a esta singularidad, la autora no dudó en concebirse como una escritora argentina. En su primera novela, Gente conmi- go (1962), Poletti ficcionalizó elementos de su biografía y construyó un discurso particular donde, además de recuperar su experiencia como inmigrante, incorporó también su mirada como “viajera europea”, a juzgar por la inclusión de imágenes interpretativas sobre la Argentina y el carácter de sus habitantes. En función de esta hipótesis, los objetivos del presente trabajo serán: rastrear las tres perspectivas desde las que produce literariamente la autora –como inmigrante italiana, como “viajera europea” y como escritora argentina–; analizar el viaje en función de una reconfiguración de su identidad y, por último, identificar las estrategias desplega- das para ofrecer su interpretación de la Argentina
Syria Poletti and peronism in Histonium
No full textEntre junio de 1945 y julio de 1949, Syria Poletti publicó en Histonium, una revista ítalo-argentina fundada en 1939 por Carlos Della Penna, un conjunto cuantitativamente significativo de textos de diversa índole. El paso de la escritora por esta publicación es relevante no sólo porque forma parte de la etapa inicial de su carrera, etapa en la que adquiere experiencia incursionando en diferentes roles y géneros discursivos, sino porque es un período de posicionamiento y reposicionamiento de la autora en el campo intelectual y político argentino. El objetivo del presente trabajo es visibilizar algunos dilemas que Syria Poletti pareciera haber tenido que enfrentar durante su actuación como columnista, cronista y entrevistadora, en un medio hemerográfico que, entre 1947 y 1948, se encolumnó políticamente con el oficialismo.Between June 1945 and July 1949, Syria Poletti published in Histonium, an Italian-Argentine magazine founded in 1939 by Carlos Della Penna, a quantitatively significant set of texts of various kinds. The writer's passage through this publication is relevant not only because it is part of the initial stage of her career, a stage in which she gains experience venturing into different roles and discursive genres, but also because it is a period of positioning and repositioning of the author in the Argentine intellectual and political fields. The objective of this work is to make visible some dilemmas that Syria Poletti seems to have had to face during her work as a columnist, chronicler and interviewer, in a journalistic medium that, between 1947 and 1948, was politically aligned with the ruling party.Fil: Buret, María Florencia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina
Syria Poletti and peronism in Histonium
No full textEntre junio de 1945 y julio de 1949, Syria Poletti publicó en Histonium, una revista ítalo-argentina fundada en 1939 por Carlos Della Penna, un conjunto cuantitativamente significativo de textos de diversa índole. El paso de la escritora por esta publicación es relevante no sólo porque forma parte de la etapa inicial de su carrera, etapa en la que adquiere experiencia incursionando en diferentes roles y géneros discursivos, sino porque es un período de posicionamiento y reposicionamiento de la autora en el campo intelectual y político argentino. El objetivo del presente trabajo es visibilizar algunos dilemas que Syria Poletti pareciera haber tenido que enfrentar durante su actuación como columnista, cronista y entrevistadora, en un medio hemerográfico que, entre 1947 y 1948, se encolumnó políticamente con el oficialismo.Between June 1945 and July 1949, Syria Poletti published in Histonium, an Italian-Argentine magazine founded in 1939 by Carlos Della Penna, a quantitatively significant set of texts of various kinds. The writer's passage through this publication is relevant not only because it is part of the initial stage of her career, a stage in which she gains experience venturing into different roles and discursive genres, but also because it is a period of positioning and repositioning of the author in the Argentine intellectual and political fields. The objective of this work is to make visible some dilemmas that Syria Poletti seems to have had to face during her work as a columnist, chronicler and interviewer, in a journalistic medium that, between 1947 and 1948, was politically aligned with the ruling party.Fil: Buret, María Florencia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina
Syria Poletti and peronism in Histonium
No full textEntre junio de 1945 y julio de 1949, Syria Poletti publicó en Histonium, una revista ítalo-argentina fundada en 1939 por Carlos Della Penna, un conjunto cuantitativamente significativo de textos de diversa índole. El paso de la escritora por esta publicación es relevante no sólo porque forma parte de la etapa inicial de su carrera, etapa en la que adquiere experiencia incursionando en diferentes roles y géneros discursivos, sino porque es un período de posicionamiento y reposicionamiento de la autora en el campo intelectual y político argentino. El objetivo del presente trabajo es visibilizar algunos dilemas que Syria Poletti pareciera haber tenido que enfrentar durante su actuación como columnista, cronista y entrevistadora, en un medio hemerográfico que, entre 1947 y 1948, se encolumnó políticamente con el oficialismo.Between June 1945 and July 1949, Syria Poletti published in Histonium, an Italian-Argentine magazine founded in 1939 by Carlos Della Penna, a quantitatively significant set of texts of various kinds. The writer's passage through this publication is relevant not only because it is part of the initial stage of her career, a stage in which she gains experience venturing into different roles and discursive genres, but also because it is a period of positioning and repositioning of the author in the Argentine intellectual and political fields. The objective of this work is to make visible some dilemmas that Syria Poletti seems to have had to face during her work as a columnist, chronicler and interviewer, in a journalistic medium that, between 1947 and 1948, was politically aligned with the ruling party.Fil: Buret, María Florencia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina
Syria Poletti, an inmigrant with a traveler's look
No full textSyria Poletti es una inmigrante italiana que arribó a la Argentina en 1938, cuando contaba con 21 años de edad. Tras aprender el español, escribió toda su producción literaria en esa nueva lengua. Debido a esta singularidad, la autora no dudó en concebirse como una escritora argentina. En su primera novela, gente conmi- go (1962), Poletti ficcionalizó elementos de su biografía y construyó un discurso particular donde, además de recuperar su experiencia como inmigrante, incorporó también su mirada como "viajera europea", a juzgar por la inclusión de imágenes interpretativas sobre la Argentina y el carácter de sus habitantes. En función de esta hipótesis, los objetivos del presente trabajo serán: rastrear las tres perspectivas desde las que produce literariamente la autora -como inmigrante italiana, como "viajera europea" y como escritora argentina-; analizar el viaje en función de una reconfiguración de su identidad y, por último, identificar las estrategias desplegadas para ofrecer su interpretación de la Argentina.Syria Poletti is an Italian immigrant who arrived in Argentina in 1938, when she was 21 years old. After learning Spanish, she wrote her entire literary production in that new language. Due to this uniqueness, the author did not hesitate to conceive herself as an Argentine writer. In her first novel, Gente conmigo (1962), Poletti fictionalized elements of her biography and constructed a particular discourse where, in addition to recovering her experience as an immigrant, she also incorporated her gaze as a "European traveler", judging by the inclusion of interpretive images about Argentina and the nature of its inhabitants. Based on this hypothesis, the objectives of this work will be: to trace the three perspectives from which the author produces -as an Italian immigrant, as a "European traveler" and as an Argentine writer-; analyze the trip based on a reconfiguration of her identity and, finally, identify the strategies she deploys to deliver her interpretation of Argentina.Fil: Buret, María Florencia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina
Rigenerazione bioclimatica ed ambientale degli spazi aperti del Villaggio San Luca (MS)
No full textSe la rigenerazione urbana si pone tra i suoi obiettivi l’applicazione di principi progettuali al fine di perseguire una più ampia idea di sostenibilità, la rigenerazione in chiave bioclimatica si spinge ad affrontare il tema del recupero, valorizzando le condizioni ambientali, climatiche e naturali del sito e massimizzando le potenzialità dei sistemi passivi già presenti nel contesto antropizzato. L’obiettivo strategico di mettere a sistema la lettura morfologica del tessuto urbano esistente, con le necessità di controllo microclimatico viene qui applicata agli spazi aperti del Villaggio San Luca, parte del Piano P.E.E.P. per il quartiere Bonascola di Carrara (Piccinato, 1965-1966), che diventa occasione per testare un approccio integrato di rigenerazione bioclimatica – ambientale, sulla scia di esempi internazionali comparabili, per dimensioni e caratteristiche degli spazi aperti, al caso italiano.
Attraverso le valutazione microclimatiche condotte tramite il software ENVI-met sugli spazi aperti del quartiere, questo contributo presenta una possibile modalità di analisi sull’efficacia ambientale di alcune scelte progettuali, ricorrendo alle analisi di comfort termoigrometrico, ai flussi del vento, alle scelte dei materiali di finitura e delle loro caratteristiche radiative, per giungere infine a quantificare i vantaggi ambientali di scenari di mitigazione anche sul comfort individuale percepito dagli utenti. In tal modo si identificano quantitativamente alcuni elementi di criticità degli spazi aperti non edificati, delle aree aperte, degli spazi di transizione e di fruizione collettiva, individuando zone e situazioni che possano essere ripensate, sfruttando i principi compositivi e bioclimatici sottesi al progetto originale di Luigi Piccinato
Numerical evaluation of environmental performance of a renaissance building to address a comprehensive retrofit strategy: the case of Palazzo Tassoni Estense in Ferrara (Italy)
No full textEnergy retrofit of historic heritage has become a priority of Member States in order to reach new level of sustain- ability. Strategies to enhance the energy performance of historic building (HB), however, mainly aim at improving indoor comfort and reduce their energy consumption. The scale of interaction among the indoor climate, building envelope’s and outside microclimate is still disregarded, although their relationship is very important to i) improve the indoor comfort levels; ii) enhance the outdoor frui- tion quality (i.e. in museum where the outside perceived temperature and relative humidity may affect the tourist’s appreciation); iii) to control the heat urban island effect. Hence, awareness about both indoor and outdoor per- formances is relevant to address effective strategies to improve natural ventilations, absorption of heat wave, shading, to select finishing materials or add natural ele- ments (water and vegetation). HB present often a court- yard or porches, which play a strategic role to control the outdoor microclimate. Many authors have studied their performance in hot and arid climate (i.e. Islamic hous- es) but deepening the knowledge on their contribution in warm humid climates and in other architectural typologies is still required. Using ENVI-met® simulations the paper presents a numerical environmental analysis to address design solutions for Palazzo Tassoni Estense in Ferrara (Italy), an example of renaissance typology widely spread in the European area
Syria Poletti, an inmigrant with a traveler's look
No full textSyria Poletti es una inmigrante italiana que arribó a la Argentina en 1938, cuando contaba con 21 años de edad. Tras aprender el español, escribió toda su producción literaria en esa nueva lengua. Debido a esta singularidad, la autora no dudó en concebirse como una escritora argentina. En su primera novela, gente conmi- go (1962), Poletti ficcionalizó elementos de su biografía y construyó un discurso particular donde, además de recuperar su experiencia como inmigrante, incorporó también su mirada como "viajera europea", a juzgar por la inclusión de imágenes interpretativas sobre la Argentina y el carácter de sus habitantes. En función de esta hipótesis, los objetivos del presente trabajo serán: rastrear las tres perspectivas desde las que produce literariamente la autora -como inmigrante italiana, como "viajera europea" y como escritora argentina-; analizar el viaje en función de una reconfiguración de su identidad y, por último, identificar las estrategias desplegadas para ofrecer su interpretación de la Argentina.Syria Poletti is an Italian immigrant who arrived in Argentina in 1938, when she was 21 years old. After learning Spanish, she wrote her entire literary production in that new language. Due to this uniqueness, the author did not hesitate to conceive herself as an Argentine writer. In her first novel, Gente conmigo (1962), Poletti fictionalized elements of her biography and constructed a particular discourse where, in addition to recovering her experience as an immigrant, she also incorporated her gaze as a "European traveler", judging by the inclusion of interpretive images about Argentina and the nature of its inhabitants. Based on this hypothesis, the objectives of this work will be: to trace the three perspectives from which the author produces -as an Italian immigrant, as a "European traveler" and as an Argentine writer-; analyze the trip based on a reconfiguration of her identity and, finally, identify the strategies she deploys to deliver her interpretation of Argentina.Fil: Buret, María Florencia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina
Syria Poletti, an inmigrant with a traveler's look
No full textSyria Poletti es una inmigrante italiana que arribó a la Argentina en 1938, cuando contaba con 21 años de edad. Tras aprender el español, escribió toda su producción literaria en esa nueva lengua. Debido a esta singularidad, la autora no dudó en concebirse como una escritora argentina. En su primera novela, gente conmi- go (1962), Poletti ficcionalizó elementos de su biografía y construyó un discurso particular donde, además de recuperar su experiencia como inmigrante, incorporó también su mirada como "viajera europea", a juzgar por la inclusión de imágenes interpretativas sobre la Argentina y el carácter de sus habitantes. En función de esta hipótesis, los objetivos del presente trabajo serán: rastrear las tres perspectivas desde las que produce literariamente la autora -como inmigrante italiana, como "viajera europea" y como escritora argentina-; analizar el viaje en función de una reconfiguración de su identidad y, por último, identificar las estrategias desplegadas para ofrecer su interpretación de la Argentina.Syria Poletti is an Italian immigrant who arrived in Argentina in 1938, when she was 21 years old. After learning Spanish, she wrote her entire literary production in that new language. Due to this uniqueness, the author did not hesitate to conceive herself as an Argentine writer. In her first novel, Gente conmigo (1962), Poletti fictionalized elements of her biography and constructed a particular discourse where, in addition to recovering her experience as an immigrant, she also incorporated her gaze as a "European traveler", judging by the inclusion of interpretive images about Argentina and the nature of its inhabitants. Based on this hypothesis, the objectives of this work will be: to trace the three perspectives from which the author produces -as an Italian immigrant, as a "European traveler" and as an Argentine writer-; analyze the trip based on a reconfiguration of her identity and, finally, identify the strategies she deploys to deliver her interpretation of Argentina.Fil: Buret, María Florencia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina
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