649 research outputs found
Proprietà modali e caratteristiche radiative di onde superficiali e leaky in lamine metamateriali
No full textIn questo lavoro viene presentata una rassegna di alcuni recenti risultati concernenti fenomeni di propagazione e radiazione in lamine metamateriali doppiamente negative (DNG) poste su un piano di massa. L’analisi grafica delle equazioni di dispersione dei modi TE e TM supportati da tali strutture consente di ottenere condizioni sufficienti per la soppressione completa delle onde superficiali in determinati intervalli di frequenza. Lo studio dei modi leaky rivela come la loro natura spettrale propria corrisponda a una radiazione di tipo backward. Vengono presentati risultati numerici per specifiche strutture con parametri costitutivi negativi dipendenti dalla frequenza, eccitate da dipoli elementari, allo scopo di illustrare sia l’effetto della soppressione delle onde superficiali, sia le proprietà di scansione in frequenza di fasci conici irradiati dalle onde leaky
Donadoni E., Baccarelli M., De Carli M., 2018, “Piazza Vittorio Emanuele II a Salò e la ricomposizione del suo centro storico” in Urbanistica Informazioni, n° 278 s.i, atti della XI Giornata Studi INU “interruzioni, intersezioni, condivisioni, sovrapposizioni. Nuove prospettive per il territorio”, ISSN 0392-5005
No full textDidactic actions applied in the collective teaching of bowed-strings: an experience at the Baccarelli Institute
No full textEsta pesquisa investiga ações didáticas no ensino coletivo de cordas friccionadas com foco na experiência aplicada no Instituto Baccarelli. O objetivo principal é analisar, no processo de ensino coletivo de cordas friccionadas do Instituto Baccarelli, as ações didáticas que estão diretamente relacionadas ao uso do corpo (postura), qualidade da emissão do som (sonoridade), afinação, ritmo e fluência (musicalidade) dos alunos. A abordagem metodológica adotada foi revisão de literatura, por meio de publicações em Anais de congressos, artigos de periódicos, livros e materiais audiovisuais relevantes para o tema, a exemplo de Suzuki (1983), Kreitman (1998), Cruvinel (2003), Ying (2007, 2012), Galindo (2000), Ilari (2012), Scoggin (1993, 2003), Oliveira (1998) e Tourinho (2007). As etapas da metodologia constituem-se nos seguintes procedimentos: discussão do material impresso e audiovisual utilizado para o ensino de cordas friccionadas no Brasil, identificação de como se dá a metodologia de ensino utilizado no ensino coletivo de cordas friccionadas no Instituto Baccarelli e sua relação com o método Suzuki, além de elencar ações didáticas que estão diretamente relacionadas ao uso do corpo, à qualidade da emissão do som, à afinação, ao ritmo e à fluência dos alunos. O trabalho está estruturado em cinco seções: 1. Introdução; 2. Revisão de literatura; 3. Metodologia de ensino utilizada no ensino coletivo de cordas friccionadas no Instituto Baccarelli; 4. As ações didáticas aplicadas no Instituto Baccarelli; 5. Considerações Finais. As conclusões apontam para a confirmação de que, ao adotar as prioridades propostas por Suzuki, como referência para o ensino do instrumento, desenvolveu-se no Instituto Baccarelli uma metodologia baseada no método Suzuki, que possibilita trabalhar com alunos de diferentes níveis em uma mesma aula de ensino coletivo de cordas friccionadas.This research investigates didactic actions applied in the collective teaching of bowedstrings focusing on the experiences of this kind of teaching at the Baccarelli Institute. The main goal of this research is to identify, in the process of collective teaching of bowed-string instruments at the Baccarelli Institute, the didactic actions that are directly related to the use of body, sound emission quality, pitch, rhythm, and fluency of the students as proposed by Shinichi Suzuki. The methodological approach applied here was the review of literature published in conference proceedings, journal articles, books, and relevant audiovisual material on the research subject; for example, Suzuki (1983,1996), Kreitman (1998), Cruvinel (2003), Ying (2007, 2012) and Galindo (2000), Ilari (2012), Borges-Scoggin (1993), Scoggin (2003), Oliveira (1998) and Tourinho (2007). The methodological stages are constituted of the following procedures: discussion about the print and audiovisual material used for bowed-string instruments teaching in Brazil, identification of how the teaching methodology used in the collective teaching of bowed-string instruments at the Baccarelli Institute and its relation with the Suzuki Method, besides listing the didactic actions directly related to the use of body, sound emission quality, pitch, rhythm and fluency of the students. The structure of the present work consists of three chapters: 1. Literature review, 2. Teaching methodology used in the collective teaching of bowed-string instruments at BI, 3. Didactic actions applied at BI. The concluding remarks point towards the confirmation of the hypothesis that, when adopting the priorities proposed by Suzuki as reference for the instrument teaching, a methodology based on Suzuki Method was developed at the Baccarelli Institute that allows working with students from different levels in a collective classroom of bowed-string instruments
Instituto Baccarelli, Where Music Transforms: A Case Study of Music for Social Change
No full textThis study analyzed the Instituto Baccarelli and its impact on the lives of participants. The Instituto Baccarelli is a social program in São Paulo, Brazil that uses music as a means of social change. Instituto Baccarelli provides music education for children and youth from Heliópolis, the largest comunidade––popularly known by the pejorative term of favela––in the country. The purpose of this study was (a) to document Instituto’s Baccarelli educational approach; (b) to document Instituto Baccarelli’s impact on the lives of its students; and (c) to identify the ways that Instituto Baccarelli promotes social change. Data were collected through interviews, observations in the field, and the analysis of program documents and other artifacts. The theoretical framework used for this study was Mezirow’s (1978) Transformative Learning Theory, an educational process in which students’ previous perspectives change because of learning and developing new understandings of the world through reflection, discussion, and critical thinking. Findings suggest Instituto Baccarelli has developed unique musical practices that facilitate the development of students beyond music skills and provides for the Heliópolis community. The impacts of Baccarelli on the lives of its students are many and varied. These impacts include: (a) the development of lifelong relationships, (b) networks of care and support, (c) opportunities to learn, (d) to experience and discover a world beyond the limitations of Heliópolis, and (e) the acquisition of skills and abilities that support student growth and improvement through life, allowing them to break the cycle of poverty. All students and staff members reported being transformed, and extending these transformations to their families and community, enabling a ripple effect that has resulted in social change.</p
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Instituto Baccarelli, Where Music Transforms: A Case Study of Music for Social Change
No full textThis study analyzed the Instituto Baccarelli and its impact on the lives of participants. The Instituto Baccarelli is a social program in São Paulo, Brazil that uses music as a means of social change. Instituto Baccarelli provides music education for children and youth from Heliópolis, the largest comunidade––popularly known by the pejorative term of favela––in the country. The purpose of this study was (a) to document Instituto’s Baccarelli educational approach; (b) to document Instituto Baccarelli’s impact on the lives of its students; and (c) to identify the ways that Instituto Baccarelli promotes social change. Data were collected through interviews, observations in the field, and the analysis of program documents and other artifacts. The theoretical framework used for this study was Mezirow’s (1978) Transformative Learning Theory, an educational process in which students’ previous perspectives change because of learning and developing new understandings of the world through reflection, discussion, and critical thinking. Findings suggest Instituto Baccarelli has developed unique musical practices that facilitate the development of students beyond music skills and provides for the Heliópolis community. The impacts of Baccarelli on the lives of its students are many and varied. These impacts include: (a) the development of lifelong relationships, (b) networks of care and support, (c) opportunities to learn, (d) to experience and discover a world beyond the limitations of Heliópolis, and (e) the acquisition of skills and abilities that support student growth and improvement through life, allowing them to break the cycle of poverty. All students and staff members reported being transformed, and extending these transformations to their families and community, enabling a ripple effect that has resulted in social change.</p
Antenne planari altamente direttive per investigazioni in spazio aperto e in scenari extraterrestri
No full textStudio di fenomeni propagativi e radiativi in guide anisotrope e periodiche stampate
No full textDottorato di ricerca in elettromagnetismo applicato e scienze elettrofisiche. 12. ciclo. Coordinatore Giorgio Gerosa. Docente guida Paolo LamparielloConsiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7 , Rome; Biblioteca Nazionale Centrale - P.za Cavalleggeri, 1, Florence / CNR - Consiglio Nazionale delle RichercheSIGLEITItal
Visiting Researcher
No full textStudio di metodi numerici per l’analisi di strutture periodiche planari e della caratterizzazione analitica dello spettro continuo eccitato da sorgenti elementari in strutture radianti stampate su substrati dielettriciDipartimento di Ingegneria Elettronica: marzo 199
Modal analysis of arbitrary-shaped 2D periodic structures printed on a grounded dielectric slab: Real and complex solutions
No full textIn this paper a full-wave numerical approach devoted to modal analysis of planar 2D periodic structures printed on a grounded dielectric slab with arbitrary metallization within the unit cell is presented. The proposed technique is based on a mixed-potential integral equation, solved by the method of moments in the spatial domain. Twodimensional periodic vector and scalar Green's functions are derived in the spectral domain; this permits to properly account for leakage effects by choosing the correct spectral determination for each spatial harmonic. Real propagation constant for surface waves in their pass-band regimes and complex propagation constant both for bound modes in their stop-band regimes and for proper and improper leaky modes can be efficiently derived. Results for a uniplanar compact photonic bandgap structure, demonstrating the capabilities of this approach, are reported in this paper
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