Dissertations / Theses on the topic 'Bandt'

To see the other types of publications on this topic, follow the link: Bandt.

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Bandt.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Mekhontsev, Dmitry [Verfasser], Christoph [Akademischer Betreuer] Bandt, Christoph [Gutachter] Bandt, and Dirk [Gutachter] Frettlöh. "An algebraic framework for finding and analyzing self-affine tiles and fractals / Dmitry Mekhontsev ; Gutachter: Christoph Bandt, Dirk Frettlöh ; Betreuer: Christoph Bandt." Greifswald : Ernst-Moritz-Arndt-Universität, 2019. http://d-nb.info/117724148X/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Mechoncev, Dmitrij [Verfasser], Christoph [Akademischer Betreuer] Bandt, Christoph Gutachter] Bandt, and Dirk [Gutachter] [Frettlöh. "An algebraic framework for finding and analyzing self-affine tiles and fractals / Dmitry Mekhontsev ; Gutachter: Christoph Bandt, Dirk Frettlöh ; Betreuer: Christoph Bandt." Greifswald : Ernst-Moritz-Arndt-Universität, 2019. http://nbn-resolving.de/urn:nbn:de:gbv:9-opus-24794.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Mechoncev, Dmitrij [Verfasser], Christoph [Akademischer Betreuer] Bandt, Christoph [Gutachter] Bandt, and Dirk [Gutachter] Frettlöh. "An algebraic framework for finding and analyzing self-affine tiles and fractals / Dmitry Mekhontsev ; Gutachter: Christoph Bandt, Dirk Frettlöh ; Betreuer: Christoph Bandt." Greifswald : Ernst-Moritz-Arndt-Universität, 2019. http://d-nb.info/117724148X/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bandt, Susanne [Verfasser]. "Zusammenhang zwischen unterschiedlichen Erfassungsmethoden körperlicher Aktivität und der Körperzusammensetzung bei gesunden Erwachsenen der KarMeN-Studie / Susanne Bandt." Gießen : Universitätsbibliothek, 2015. http://d-nb.info/1071058274/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kessler, Kevin Wayne. ""We are the pride!" : a history of the South Dakota State University marching band from 1886 to 2015." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/5956.

Full text
Abstract:
Evidence of bands at South Dakota State University can be found as early as 1886, only the second year of classes at the Land-Grant institution. From this grew what is known today as the “Pride of the Dakotas Marching Band.” The band was led by six different men over the first twenty-one years of its existence. A highlight of these early years was a trip to the 1904 World’s Fair in St. Louis, Missouri, under the direction of John Parmalee Mann. His successor, Francis J. Haynes, penned the music to the school’s alma mater, the Yellow and the Blue. In 1911, Carl “Christy” Christensen became Director of Bands, and did not relinquish the title for forty-three years. The highlight of “Christy’s” illustrious career was a trip to Winnipeg, Manitoba, Canada in 1939, in which the band performed for King George VI and Queen Consort Elizabeth. The band has carried on a rich tradition of high-profile performances. In 1962, the band, under the direction of Dr. Warren Hatfield, began a relationship with the National Football League’s Minnesota Vikings. For over twenty years, the band performed at their games, and many of these performances were broadcast to a national television audience. Under the leadership of John Colson and Gene Pollart, the band continued to grow and become known for their high-energy, entertaining, and skillful performances. Because of this reputation, the band, under the direction of Dr. Darwin Walker, earned an invitation to the 1981 Inaugural Parade of President Ronald Reagan. James McKinney led the band to the 1997 Inaugural Parade of President William Clinton, the 2000 Fourth of July Parade in Washington, D.C., and the 2003 and 2008 Tournament of Rose Parades. Since McKinney’s retirement, Eric Peterson, James Coull, and Kevin Kessler have each served as the director of the Pride. This document chronicles the history of the band from its origins to 2015.
APA, Harvard, Vancouver, ISO, and other styles
6

Feeney, Stuart M. "Wide-band channel sounding in the bands above 2GHz." Thesis, Durham University, 2007. http://etheses.dur.ac.uk/2476/.

Full text
Abstract:
Modem telecommunication services require increasing data rates for both mobile and fixed applications. At frequencies in the range 2.5 GHz to 6 GHz physical constraints on the size of equipment result in antenna with moderate directivity typically with an antenna beam width of 20 degrees or greater. Thus building and ground clutter is present within the first Fresnel zones of the antenna system which gives rise to multi-path propagation. This multi-path propagation (average delay and RMS delay spread) has been investigated using a wideband FMCW channel sounder that is capable of operation at a number of frequencies. The channel sounder has been based upon a parallel architecture sounder operating within the 2 GHz band with a number of frequency conversion modules to translate operation to the new frequency bands under study. Two primary configurations have been explored. In the first of these, propagation has been measured simultaneously within the 2.5 GHz, 3.4 GHz and 5.7 GHz bands. This is believed to be novel and original. In the second configuration four parallel channels operating within the 5.7 GHz band may be operated simultaneously. This configuration supports multiple antennas at the receiver. To support the work in the bands from 2.5 GHz to 6 GHz wideband discone antenna have been designed and fabricated. A system to provide relative gain and phase calibration for up to four antennas has been developed and demonstrated. This is also believed to represent a novel method of performing antenna and array calibration. Finally, the frequency converters have been used in conjunction with additional components to provide an FMCพ sounder operating within the 60 GHz Oxygen absorption band. This work is novel in that up to 1 GHz of spectrum can be swept. To support this work a significant number of microwave components have been designed and developed. In particular a novel wide band balanced X3 multiplier and a novel impedance-matched amplitude-equaliser (to provide amplifier gain-slope equalisation) has been developed. Channel soundings have been performed at three frequencies simultaneously using band specific and common antenna. The average delay and RMS delay spread have been demonstrated to be essentially frequency independent for the environments evaluated.
APA, Harvard, Vancouver, ISO, and other styles
7

Motta, Thiago Pereira. "Índices espectrais de imagens coloridas na avaliação do estado nutricional de fósforo, enxofre e magnésio no capim-marandu." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/74/74131/tde-03112016-160723/.

Full text
Abstract:
O presente trabalho foi conduzido com o objetivo de avaliar a nutrição da Urochloa brizantha (Syn. Brachiaria brizantha) cv. Marandu para P, Mg e S através do desenvolvimento das plantas, sintomas visuais e índices espectrais das bandas do visível. Os experimentos foram conduzidos em casa de vegetação localizada no campus da FZEA/USP. As plantas foram cultivadas em solução nutritiva, onde foram fornecidas as seguintes doses de P, Mg e S: 6%, 20%, 100% e 200% do recomendado, em blocos casualizados. As imagens digitais de scanner das folhas diagnósticas foram processadas e classificadas utilizando MATLAB® R2012b com pacote de ferramentas para processamento de imagens. Foram utilizados vetores de características baseados nas bandas do visível, sendo calculados os seguintes índices: excesso de verde; vermelho normalizado; verde normalizado; e razão verde-vermelho. Na classificação foi utilizado classificador bayesiano. As doses de P, Mg e S causaram aumento significativo (P<0,05) no acúmulo de massa seca da parte aérea (MSPA) e nos teores foliares dos nutrientes dosados. As doses de P, S e Mg promoveram manifestações dos sintomas de deficiência característicos que se traduzem em modificações no perfil de coloração das folhas. A Porcentagem de Acerto Global (PAG) e o índice Kappa atingiram valores acima de 80% e 0,81, respectivamente, sendo consideradas classificações excelentes. As melhores classificações foram obtidas quando se utilizou mais de um índice como vetor de característica. Índices espectrais do verde e do vermelho são bons descritores do status da nutrição do P, Mg e S no capim-marandu.
The present study was conducted to assess the nutrition of Urochloa brizantha (SYN. Brachiaria brizantha) CV. Marandu to P, Mg and S through the development of plants, Visual symptoms and spectral indices of the visible bands. The experiments were conducted in a greenhouse located on the campus of the FZEA/USP. The plants were grown in nutrient solution, where they were provided the following doses of P, Mg, and S: 6%, 20%, 100% and 200% of the recommended, in randomized blocks. The digital images from scanner diagnostic sheets were processed and classified using MATLAB ® R2012b with package of tools for processing images. Characteristic vectors were used based on bands of the visible, being calculated the following indexes: excess Green; standard red; standardised Green; Red-Green ratio. The classification has been used Bayesian classifier. The doses of P, Mg, and S have caused significant increase (P < 0.05) in acúmul shoot dry mass (MSPA) and foliar nutrient levels dosed. The doses of P, S and Mg promoted demonstrations of characteristic deficiency symptoms that result in changes in the profile of colouring of leaves. The Global hit Percentage (PAG) and the Kappa index reached values above 80%, and 0.81, respectively, being considered excellent ratings. The best ratings were obtained when using more than one index as a feature vector. Spectral indices of green and Red are good descriptors of the nutrition status of P, Mg and S marandu grass.
APA, Harvard, Vancouver, ISO, and other styles
8

French, Gillian. "Follow the band : community brass bands in the Scottish Borders." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9482.

Full text
Abstract:
This thesis presents research into the history and contemporary context of brass bands in the Scottish Borders. It discusses how the survival of the brass bands in the Scottish Borders can be accounted for over the last 150 years, in particular with regard to the continuity of their interaction with the community which has enabled them to overcome cultural, social and demographic changes. The textile industry which provided a stimulus for the formation of the brass bands in the nineteenth century has largely disappeared, but the traditional role of the bands has been carried forward to the present day. Previous study of the social and cultural history of the brass band movement has concentrated on the history of brass banding in the North of England. Although research into the history of brass bands has been carried out in other areas of Britain such as the South of England this is the first in-depth study of these bands in a region of Scotland. This research follows previous studies of amateur music-making in specific locations by studying in detail the brass bands that exist in seven towns and one village of the Scottish Borders where the bands can date their formation to the mid-nineteenth century. Historical and archival research has provided most of the data relating to the first hundred years, including the use of individual band archives, local newspaper archives and museum records. Ethnographic methods, including interviews and participant observation, have provided the data for more recent times. Details of brass band repertoires have been extracted from various sources including musical examples taken from individual band libraries. A central research finding is the strong relationship of the brass bands with their local communities, particularly the support given to the bands by local people and the way in which the bands support their communities by providing music for civic and community events. The close relationship of the brass bands with their local communities has been fundamental in providing the means by which the bands have been sustained over time. There is a strong Scottish Borders identity that links the towns, especially through family ties, and this is also found in a musical repertoire with songs that are specifically connected to the region and to individual towns. By playing this music for civic and community events, especially at the time for the Common Ridings which are annual events unique to the Scottish Borders, the brass bands have provided a service to the community which has ensured their survival.
APA, Harvard, Vancouver, ISO, and other styles
9

Williamson, Brad A. "A study of Ohio high school band directors' perceived preparation for teaching high school marching band through participation in a collegiate marching band, marching band technique classes, and methods courses." Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1243463233.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Benedito, Celso José Rodrigues. "O mestre de Filarmônica da Bahia: um educador musical." reponame:Repositório Institucional da UFBA, 2011. http://www.repositorio.ufba.br/ri/handle/ri/9101.

Full text
Abstract:
162 f.:il
Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2013-03-15T12:30:38Z No. of bitstreams: 1 Tese Celso Jose Rodrigues Benedito.pdf: 1079327 bytes, checksum: 24eaf18903131f9cb987e587dfe96332 (MD5)
Approved for entry into archive by Rodrigo Meirelles(rodrigomei@ufba.br) on 2013-03-22T14:12:38Z (GMT) No. of bitstreams: 1 Tese Celso Jose Rodrigues Benedito.pdf: 1079327 bytes, checksum: 24eaf18903131f9cb987e587dfe96332 (MD5)
Made available in DSpace on 2013-03-22T14:12:38Z (GMT). No. of bitstreams: 1 Tese Celso Jose Rodrigues Benedito.pdf: 1079327 bytes, checksum: 24eaf18903131f9cb987e587dfe96332 (MD5) Previous issue date: 2011
O presente trabalho teve como objeto de estudo a prática de ensino-aprendizagem de música dos mestres de filarmônicas da Bahia. Os mestres baianos, figuras centrais desta pedagogia, desenvolveram um modelo de educação musical que possibilita a adequação do treinamento à individualidade de cada aprendiz. Grande parte deste aprendizado ocorre com os músicos mais antigos e persiste na convivência de seus integrantes com a rotina musical da entidade. Na filarmônica jamais se perde de vista o fazer musical e a metodologia de ensino favorece o preparo rápido para o ingresso do aluno no grupo. O trabalho está estruturado em quatro capítulos denominados a partir de expressões usuais extraídas da pedagogia das filarmônicas: ― "Conforme Lê, conforme toca” (Metodologia); ― "Pegar o instrumento" (Fundamentação Teórica). O ― "Passar para a estante" (Transcrição dos dados) e o ― "Ingresso no Grupo" (Análise). A investigação abordou as seguintes questões: quais competências os mestres de filarmônica necessitam para exercer sua função; quais os processos de ensino, como o corpo musical da banda concebe a formação dos mestres, as dificuldades desta prática nos dias de hoje e a possibilidade de incluí-la no ensino básico. A pesquisa constatou ser o mestre de filarmônica um educador musical. Muitos dos procedimentos didáticos adotados pelos mestres podem proporcionar uma valiosa contribuição à Educação Musical Brasileira. É preciso valorizá-los como educadores, reconhecer suas práticas musicais e oportunizar a disseminação de tais saberes.
Salvador
APA, Harvard, Vancouver, ISO, and other styles
11

Chaffee, Christopher Lloyd. "Music as Advertising: The Story of the Armco Band." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1069350175.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Samford, Brent R. "Band Directors and Hearing: Measuring School Bands for Potentially Hazardous Sound Levels." Thesis, University of North Texas, 1993. https://digital.library.unt.edu/ark:/67531/metadc500663/.

Full text
Abstract:
This investigation sought to identify sound levels potentially harmful to directors' hearing, and examine the effects of band size, instrumentation, bandroom and playing ability on sound levels. The subjects were 2 elementary, 2 middle, and 4 high school bands, in 7 rooms, 10 to 66 members, and 26 students, beginning and advanced. A sound level meter was used. Sounds were measured in flat and A-weighted decibels. Sounds measured were steady state (>.5 sec.) and impulse (<.5 sec.). Results were compared with safety limits of OSHA, EPA and Baughn's study of safety limits (1966). Results show exceedences of limits used for comparison. Small rehearsal areas and younger players seemed to cause high levels in the tests. Further testing may prove potential hazards.
APA, Harvard, Vancouver, ISO, and other styles
13

Houser, Russell John. "An examination of wind band transcriptions." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Costa, Luiz Fernando Navarro. "Transmissão de saberes musicais na Banda 12 de Dezembro." Universidade Federal da Paraí­ba, 2008. http://tede.biblioteca.ufpb.br:8080/handle/tede/6626.

Full text
Abstract:
Made available in DSpace on 2015-05-14T12:52:38Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2666026 bytes, checksum: a41278a9e37d0b68a1f8efdca93ae5a2 (MD5) Previous issue date: 2008-09-12
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
The civil music bands, generally, work as music formation centers. In this way, they attempt the local community desire to study music by the transmission of musical knowledge in this context. The ethnomusicology understands musical transmission as an important factor of musical phenomenon comprehension. The transmission way adopted in that society or community, make us understand its musical culture. Like that, we developed a research with the 12 de Dezembro civil music band of Cabedelo city in Paraíba state. The objective of this study was to understand the latent and explicit process interspersed in 12 de Dezembro civil music band transmission, putting in evidence the main learning and teaching strategies. We observed, systematically, the rehearsals, classes, shows and several 12 de Dezembro music band casual moments. The date collect consisted of interview, photographs, audio and video records. We verified learning and teaching process towards to instrumental practice, at this way, the 12 de Dezembro music band supply its empty instrumental places. In practice, the future instrumentalists will develop their initial learning by the help and mutual changes between the 12 de Dezembro music band members. The repetition, experimentation and imitation are the base of all process.
As bandas de música civis no Brasil, em geral, funcionam como centros de formação musical, que atendem, sobretudo, a comunidade local, possibilitando a transmissão de saberes musicais necessários para a prática da música nesse contexto. A etnomusicologia tem concebido a transmissão como fator determinante para a compreensão do fenômeno musical, tendo em vista que as formas que uma sociedade adota para transmitir sua música são fundamentais para o entendimento daquela cultura musical. Considerando a realidade das bandas de música, este trabalho apresenta os resultados de uma pesquisa realizada junto à Banda 12 de Dezembro do município de Cabedelo-PB. O estudo teve como objetivo compreender os processos explícitos e latentes que permeiam a transmissão musical na Banda 12 de Dezembro, evidenciando as principais estratégias de ensino e aprendizagem utilizadas. Procurei observar sistematicamente os ensaios, aulas, apresentações e diversos momentos informais de convivência social proporcionados pela banda. A coleta dos dados foi também estruturada por entrevistas, fotografias e gravações em áudio e vídeo. Pela necessidade de adquirir novos músicos para suprir seus quadros, a Banda 12 de Dezembro desenvolve suas atividades de ensino e aprendizagem direcionadas para a prática instrumental. Quando estão dominando razoavelmente a leitura e o instrumento, os alunos são encaminhados a participar dos ensaios e das apresentações da banda, situações onde se desdobrará seu processo de aprendizagem. Aprendizagem que se consolida a partir de aspectos diversificados, alicerçados, sobretudo, nos processos de imitação, repetição e experimentação.
APA, Harvard, Vancouver, ISO, and other styles
15

Binder, Fernando Pereira [UNESP]. "Bandas militares no Brasil: difusão e organização entre 1808-1889." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/95107.

Full text
Abstract:
Made available in DSpace on 2014-06-11T19:27:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2006Bitstream added on 2014-06-13T19:35:34Z : No. of bitstreams: 1 binder_fp_me_ia_prot.pdf: 4189817 bytes, checksum: 528d125fa4eeb51276978f20b1bd8953 (MD5)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Esta dissertação estuda a atuação das bandas militares no Brasil durante o período monárquico (1808-1889). O objetivo principal é esclarecer o papel destes conjuntos na difusão das práticas e repertórios associados a este tradicional veículo: a banda de música. A hipótese é que as bandas militares tiveram duas funções: simbólica, enquanto brasão sonoro da monarquia brasileira, e infra estrutural, subministrando à sociedade civil os elementos necessários a esta prática musical. Fontes de diversos tipos foram consultadas: registros oficiais, legislação administrativa, relatos de cronistas e viajantes, documentação iconografia e o repertório musical para banda. Primeirante este trabalho procura definir o que era uma banda de música no início do século XIX e as razões pelas quais estes conjuntos foram introduzidos no exército. Em seguida, investiga como era a participação das bandas militares em festas e cerimonias oficiais, no Rio de Janeiro e em outras partes do Brasil. Por último analisa em termos estatísticos e conceituais a legislação administrativa produzida pelo exército relativo às bandas militares. As evidências sugerem que as bandas de música foram introduzidas no exercito luso-brasileiro na passagem do século XVIII para o XIX, como parte de uma cultura aristocrática na qual se inscrevia a oficialidade. As bandas militares pontuaram as festas reais e oficiais em vários momentos, ocasiões que não dispensavam de considerável pompa oficial. A partir de 1840 bandas militares tornam-se mais comuns, devido a expsansão do exército e pelo surgimento de outras corporações militares, como a Guarda Nacional e as Polícias Militares provinciais, que também equiparam seus quadros com bandas de música. Tais bandas intensificaram a ocupação das ruas e praças em outras ocasiões, alé, das festas e desfiles oficiais...
This dissertation studies the activities of military bands in Brazil during the monarch period (1808-1889). The mais objective is to elucidate the role of these groups in the establishment of repertoire and performance practices associated with this tradicional ensemble: the wind band. My hypothesis is that military bands had both a symbolic role, serving as a sort of sonorus coat of arms for the Brazilian monarch, as well as a structural role, providing the civil society with the elements necessary for the evelopment of this variety of musical practice. My research included several types of resources: official registries, administrative legislation, chronicles of traveling reporters, iconographic documentation and band repertoire. First, I describe the composition of the bands at the beginning of the Nineteenth Century and the reasons for which these groups were introduced into the army. Second, I investigate the mannerin themilitary bands participated in festivities and official ceremonies in Rio de Janeiro and the other places in Brazil Finally, I presented a conceptual and sratistic analysis of the administrative legislationoncerning the military bands. Evidences suggests that bands were introduced into the Portuguese-Brazilian army sometime around the end of the Eighteenth century as partof an of an aristicratic culture, which included military officials. The military bands participated in occasions that required considerable official pomp, such as royal and official ceremonies and festivities. From 1840 on the military bands became more common due the increasing size of the army and the formation of new military corps such as National Guard nd the provinvincial military police, which also included bands in their ranks. Besides performing at official parades and festivities, these bands also perfomed in streets, parks and other places. These constant... (Complete abstract click electronic access below)
APA, Harvard, Vancouver, ISO, and other styles
16

Theron, Susara Margaretha. "Die perserverance kersfeesorkes as verteenwoordigende voorbeeld van gemeenskasmusiek in die Wes-Kaap." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5134.

Full text
Abstract:
Thesis (MMus (Music))--University of Stellenbosch, 2010.
AFRIKAANSE OPSOMMING: Die Kersfeesorkeste is ‟n Christelike tradisie binne die Kleurling-gemeenskap van die Wes-Kaap wat dissipline en goeie waardes by lede van hierdie gemeenskap inboesem en musiek in voorheen benadeelde en minderbevoorregte sektore van die samelewing bevorder. Die geskiedenis en agtergrond van die Kersfeesorkeste is soortgelyk aan dié van die Kaapse Klopse en die Maleierkore, wat veral prominent na vore kom tydens die Kersfees- en Nuwejaarsfeestelikhede in die Kaap. Alhoewel hierdie drie groepe ‟n nou verbintenis tot mekaar het en dikwels deur die publiek saamgroepeer word, funksioneer hulle onafhanklik van mekaar en is daar beduidende verskille in kultuur, repertoire, kleredrag, organisatoriese struktuur en samestelling. Hierdie studie fokus op die Perseverance Kersfeesorkes en ondersoek dié orkes in sy vele fasette binne die raamwerk van wat in die musiekwetenskap deesdae “gemeenskapsmusiek” genoem word. Die kenmerke van die begrip “gemeenskapsmusiek”, soos dit in die laaste 15 jaar in ander lande geformuleer is, word aan die hand van die Perseverance Kersfeesorkes getoets om uit te vind of die Perseverance Kersfeesorkes as ‟n voorbeeld van gemeenskapsmusiek beskou kan word en, omgekeerd, of die begrip “gemeenskapsmusiek” aan die hand van hierdie geval in alle opsigte gepas is of dalk aangepas moet word.
ENGLISH ABSTRACT: Christmas Bands are a Christian tradition within the Coloured community of the Western Cape that instils discipline and values amongst members of this community and promotes music within previously disadvantaged and under-privileged sectors of society. The history and background of the Christmas Bands is similar to that of the Cape Minstrels and Malay Choirs, who are very prominent during the Christmas and New Year festivities in the Cape. Although these three groups have a close connection they function independently of each other. There are significant differences amongst these groups in respect of culture, repertoire, uniform, organisational structure and composition. This study focuses on the Perseverance Christmas Band and examines this band in all its different facets within the framework of what, in current musicological terminology, is called “community music”. The characteristics of the concept of community music, as they have been formulated in other countries over the last 15 years, are tested against the Perseverance Christmas Band to determine whether the Perseverance Christmas Band should be understood as a example of community music and, vice versa, whether the concept of community music itself is valid when measured against the Perseverance Christmas Band or whether it needs adjustment or expansion.
APA, Harvard, Vancouver, ISO, and other styles
17

Araújo, Daniel Souza de. "“A Vida Pela Flor” para clarineta e banda de Joaquim Antônio Langsdorf Naegele: uma proposta interpretativa." Universidade Federal de Goiás, 2013. http://repositorio.bc.ufg.br/tede/handle/tede/4298.

Full text
Abstract:
Submitted by Erika Demachki (erikademachki@gmail.com) on 2015-03-16T21:29:03Z No. of bitstreams: 8 Dissertação - Daniel Souza de Araújo - 2013 - Parte 01.pdf: 17703763 bytes, checksum: f805f389c15f683557bce031d152f30b (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 02.pdf: 10535608 bytes, checksum: 2df9f642c2c87de10817d13779a5324e (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 03.pdf: 10142806 bytes, checksum: de38ad20cadff80ee41a31c516b507d8 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 04.pdf: 15421120 bytes, checksum: e929f207ed728c0393e6d8623f118181 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 05.pdf: 17568489 bytes, checksum: 155c0f2e8a77ae9e4292b339b589eb45 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 06.pdf: 17790295 bytes, checksum: e9d73b451ec74caa470f2880075d9368 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 07.pdf: 14478837 bytes, checksum: bdaa236d5715256eebaaa2e892002b7b (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)
Approved for entry into archive by Erika Demachki (erikademachki@gmail.com) on 2015-03-16T21:30:18Z (GMT) No. of bitstreams: 8 Dissertação - Daniel Souza de Araújo - 2013 - Parte 01.pdf: 17703763 bytes, checksum: f805f389c15f683557bce031d152f30b (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 02.pdf: 10535608 bytes, checksum: 2df9f642c2c87de10817d13779a5324e (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 03.pdf: 10142806 bytes, checksum: de38ad20cadff80ee41a31c516b507d8 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 04.pdf: 15421120 bytes, checksum: e929f207ed728c0393e6d8623f118181 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 05.pdf: 17568489 bytes, checksum: 155c0f2e8a77ae9e4292b339b589eb45 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 06.pdf: 17790295 bytes, checksum: e9d73b451ec74caa470f2880075d9368 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 07.pdf: 14478837 bytes, checksum: bdaa236d5715256eebaaa2e892002b7b (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)
Made available in DSpace on 2015-03-16T21:30:18Z (GMT). No. of bitstreams: 8 Dissertação - Daniel Souza de Araújo - 2013 - Parte 01.pdf: 17703763 bytes, checksum: f805f389c15f683557bce031d152f30b (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 02.pdf: 10535608 bytes, checksum: 2df9f642c2c87de10817d13779a5324e (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 03.pdf: 10142806 bytes, checksum: de38ad20cadff80ee41a31c516b507d8 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 04.pdf: 15421120 bytes, checksum: e929f207ed728c0393e6d8623f118181 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 05.pdf: 17568489 bytes, checksum: 155c0f2e8a77ae9e4292b339b589eb45 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 06.pdf: 17790295 bytes, checksum: e9d73b451ec74caa470f2880075d9368 (MD5) Dissertação - Daniel Souza de Araújo - 2013 - Parte 07.pdf: 14478837 bytes, checksum: bdaa236d5715256eebaaa2e892002b7b (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2013-04-25
This work is a proposed interpretative work for clarinet and Brazilian music band concert entitled "A Vida pela Flor" written by the conductor and composer Antônio Joaquim Langsdorf Naegele. Naegele had three of his compositions published by FUNARTE. The music "A Vida pela Flor" is atypical for making use of a fantasy within the context of repertoire for band. Its structure is divided into: Introduction, 1st theme with two variations, 2nd theme with five variations and codetta, differing from the simple structure of most works focused for band, like march, polkas, mazurkas, waltzes, among others. "A Vida pela Flor" stands out for its virtuosity, if taken into account that at the time was run by an instrument with fewer technical resources (Müller System - 13 keys), a remarkable fact. The piece has simple sentences, but with great richness of technique: scales, arpeggios, leaps between different registers of the clarinet, and variation of articulation. Such sentences, or fragments of them, are comparable to those found in the exercises in the "Complete Method for Clarinet" by Elenore Hyacinthe Klosé (1808-1880) which makes us believe that divulging this work will enrich the clarinet repertoire. Knowing that this work is not well divulged among teachers, composers and clarinetists, this study may arise interest to demonstrate the cultural richness that it may bring to our context.
Este trabalho delineia uma proposta interpretativa da obra brasileira para clarineta e banda musical de concerto, intitulada “A Vida pela Flor” e escrita pelo maestro e compositor Joaquim Antônio Langsdorf Naegele. Naegele teve três de suas composições publicadas pela FUNARTE. A música “A Vida pela Flor” é atípica por fazer uso da fantasia dentro do contexto de repertório para banda. Sua estrutura é dividida em: introdução, 1º. tema com duas variações, 2º. tema com cinco variações e codeta, diferenciando-se da estrutura simples da maioria das obras voltada para banda, como os Dobrados, Polcas, Mazurcas, Valsas, entre outras. Destaca-se pela virtuosidade, se levado em conta que na época foi executada por instrumento com menos recursos técnicos (Sistema Müller – 13 chaves), fato esse notável. Ela possui frases simples, porém com grande riqueza técnica baseada em: escalas, arpejos, saltos entre os diversos registros da clarineta e variação de articulação. Tais frases, ou fragmentos delas, são comparáveis aos exercícios encontrados no “Método completo para clarineta” de Hyacinthe Elénore Klosé (1808-1880), o que nos faz acreditar que a divulgação dessa obra enriquecerá o repertório da clarineta. Por entender que a peça é pouco conhecida entre os maestros, professores e clarinetistas, este estudo pode despertar o interesse desses profissionais em conhecer essa obra, o compositor e a riqueza cultural que esse contexto trás.
APA, Harvard, Vancouver, ISO, and other styles
18

Garner, Charles. "Fletcher Henderson, king of swing: a summary of his career, his music and his influences /." Access Digital Full Text version, 1991. http://pocketknowledge.tc.columbia.edu/home.php/bybib/10257925.

Full text
Abstract:
Thesis (Ed.D.) -- Teachers College, Columbia University, 1991.
Typescript; issued also on microfilm. Sponsor: Harold Abeles. Dissertation Committee: Lenore Pogonowski. Discography: p. 228-230. Includes bibliographical references: (leaves 211-217).
APA, Harvard, Vancouver, ISO, and other styles
19

Martino, Márcio Dalla Valle. "Estudo de transistores de tunelamento controlados por efeito de campo." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-16112012-164339/.

Full text
Abstract:
Este trabalho apresenta o estudo de transistores de tunelamento controlados por efeito de campo, denominados TFETs. Foram realizadas análises com base em explicação teórica, simulação numérica e medidas experimentais para demonstrar a viabilidade do uso desta tecnologia como alternativa para permitir o contínuo escalamento de dispositivos. A motivação para o uso de transistores com corrente principal resultante do tunelamento de banda para banda consiste na proposta de superar o limite físico de inclinação de sublimiar da tecnologia CMOS convencional de 60 mV/década sob temperatura ambiente. Afinal, esta limitação impede a redução na tensão de alimentação de circuitos e, consequentemente, apresenta crescentes problemas quanto à dissipação de potência. Com este objetivo, foram realizadas simulações numéricas de diversas geometrias alternativas visando atenuar as características indesejáveis dos TFETs, como a corrente ambipolar e a relativamente baixa relação ION/IOFF. Inicialmente são definidos os modelos necessários para representar adequadamente os fenômenos relevantes sob variação de temperatura e é definida uma estrutura capaz de minimizar os efeitos da ambipolaridade. Posteriormente, medidas experimentais foram utilizadas para calibrar as simulações e estudar o efeito da temperatura e do dimensionamento no funcionamento de dispositivos desta tecnologia. Comparando resultados práticos e simulados, nota-se como uma redução no comprimento de porta, com a consequente inserção de uma subposição (underlap) em relação à junção canal/dreno, e uma diminuição na temperatura permitem a obtenção de valores promissores de inclinação de sublimiar e de relação ION/IOFF, compatível com a proposta de futuras aplicações digitais e analógicas.
This works presents the study of tunneling field effect transistors, namely TFETs. Analyses were performed based on theoretical explanations, numerical simulations and experimental data in order to show this technology suitability as an alternative for the continuous devices scaling. The basic idea of making use of band-to-band tunneling as the main current component comes from the possibility of reaching sub-60 mV/decade subthreshold slopes at room temperature, differently from conventional CMOS devices. After all, this physical limitation causes relevant power dissipation issues, since it requires relatively high power supply voltages. Bearing this objective, numerical simulations of several alternative geometries were performed in order to tackle TFETs disadvantages, as the undesirable ambipolar currents and the low ION/IOFF ratio. At first, it was necessary to choose the most appropriate models to take into consideration the relevant phenomena under temperature variation and to define the physical structure in order to minimize ambipolar effects. After these analyses, experimental data were used to calibrate simulation parameters and to study how temperature and physical dimensions affect the performance of devices based on this technology. Comparing experimental and simulated results, it was possible to notice that when the structure is designed with gate underlap related to channel/drain junction and the temperature decreases, the obtained values for subthreshold slope and ION/IOFF ratio may be used as an important reference of this technology as a promising alternative for both digital and analog applications.
APA, Harvard, Vancouver, ISO, and other styles
20

Banda, Juan. "Framework for creating large-scale content-based image retrieval system (CBIR) for solar data analysis." Diss., Montana State University, 2011. http://etd.lib.montana.edu/etd/2011/banda/BandaJ0511.pdf.

Full text
Abstract:
With the launch of NASA's Solar Dynamics Observatory mission, a whole new age of high-quality solar image analysis was started. With the generation of over 1.5 Terabytes of solar images, per day, that are ten times higher resolution than high-definition television, the task of analyzing them by scientists by hand is simply impossible. The storage of all these images becomes a second problem of importance due to the fact that there is only one full copy of this repository in the world, therefore an alternate and compressed representation of these images is of vital importance. Current automated image processing approaches in solar physics are entirely dedicated to analyze individual types of solar phenomena and do not allow researchers to conveniently query the whole Solar Dynamics Observatory repository for similar images of their interests. We developed a Content-based Image Retrieval system that can automatically analyze and retrieve multiple different types of solar phenomena, this will fundamentally change the way researchers look for solar images in a similar way as Google changed the way people searched the internet. During the development of our system, we created a framework that would allow researchers to tweak and develop their own content-based image retrieval systems for different domain-specific applications with great ease and a deeper understanding of the representation of domain-specific image data. This framework incorporates many different aspects of image processing and information retrieval such as: image parameter extraction for reduced representation of solar images, image parameter evaluation for validation of image parameters used, evaluation of multiple dissimilarity measures for more accurate data analysis, analyses of dimensionality reduction methods to help reduce storage and processing costs, and indexing and retrieval algorithms for faster and more efficient search. The capabilities of this framework have never been available together as an open source and comprehensive software package. With these unique capabilities, we achieved a higher level of knowledge of our solar data and validated each of our steps into the creation of our solar content-based image retrieval system with an exhaustive evaluation. The contributions of our framework will allow researchers to tweak and develop new content-based image retrieval systems for other domains (e.g astronomy, medical field) and will allow the migration of astrophysics research from the individual analysis of solar phenomenon into larger-scale data analyses.
APA, Harvard, Vancouver, ISO, and other styles
21

Valleau, Jérémy. "Miniaturisation d'antennes très large bande pour apllication spatiales." Phd thesis, Toulouse, INPT, 2016. http://oatao.univ-toulouse.fr/19395/1/VALLEAU_Jeremy.pdf.

Full text
Abstract:
De nos jours les applications spatiales nécessitent d’embarquer toujours plus d’équipements afin de rendre les missions les plus complètes possibles. Cependant l’espace à bord des satellites est une ressource limitée et par conséquent, la miniaturisation de l’électronique embarquée est une nécessité cruciale. Dans les applications embarquées couvrant plusieurs plages de fréquence différentes, l’utilisation d’antennes ultra large bande (ULB) est une solution classique et efficace pour limiter le nombre d’antennes et de circuits associés. Leur miniaturisation présente donc un enjeu scientifique majeur. Une technique de miniaturisation consistant à charger une antenne spirale d’Archimède par un empilement d’anneaux résonants et couplés a récemment été découverte [1]-[3]. Elle permet une diminution de l’ordre de 35% du diamètre de l’antenne sans dégradation notable des performances en rayonnement. Les travaux de cette thèse permettent d’affiner la compréhension physique du rôle joué par les anneaux dans le phénomène de miniaturisation. Un circuit électrique équivalent est élaboré sur la base d’équations intégrales utilisant des fonctions d’essai étendues et le concept d’impédance de surface réactive. Ce circuit permet de simuler la réponse électromagnétique des anneaux empilés et couplés 10 fois plus vite qu’en utilisant des logiciels de simulation commerciaux et rigoureux. Ce gain de temps est mis à profit pour tester un nombre de combinaisons importants de solutions parmi lesquelles il est possible d’identifier la structure optimale pour la miniaturisation de la spirale d’Archimède chargée par des anneaux empilés et résonants. Pour maximiser l’effet des anneaux résonants couplés dans la miniaturisation de l’antenne, le choix de la fréquence de résonance des anneaux est crucial. Cette fréquence doit être suffisamment basse et permettre à l’antenne de rester adaptée en impédance sur la bande de fréquence la plus large possible. La fréquence de résonance des anneaux dépend du périmètre déployé des anneaux. Ce périmètre est fixé par le choix du motif de base et par le nombre de ses répétitions le long des anneaux. Une méthode rapide pour choisir le motif le plus adapté à la conception de l’antenne miniaturisée est présentée. Cette méthode et le circuit électrique équivalent permettent la conception optimisée et rapide d’une antenne ULB miniature. La validation de cette méthodologie de conception s’est faite expérimentalement sur la base de plusieurs réalisations.
APA, Harvard, Vancouver, ISO, and other styles
22

Pham, Trung-Kien. "Étude et conception de réseaux transmetteurs reconfigurables en bande Ka." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1S065.

Full text
Abstract:
Dans les systèmes de communication et de détection sans fil, l'antenne est un élément indispensable pour transformer l'énergie électrique en ondes électromagnétiques rayonnée dans l'espace, et vice versa. Les antennes sont utilisées dans de nombreux dispositifs militaires et civils, tels que les radars (SAR, secteur automobile, détection de débris, etc.), les instruments biomédicaux, les systèmes de télécommunication (téléphones mobiles, stations de base) pour les communications point à multi-point ou point à point par exemple. Les antennes jouent aussi un rôle essentiel pour le développement de futurs réseaux connectés reliant plusieurs appareils à des utilisateurs en temps réel, par exemple pour l'Internet des objets (IoT). Les réseaux transmetteurs sont une solution attrayante pour de nombreuses applications telles que les communications par satellite (Satcom) ou les futurs réseaux 5G. L'architecture des antennes à réseau transmetteur les rend extrêmement compétitifs comparés aux réseaux phasés par exemple grâce à leur alimentation par onde d’espace et car ils ne souffrent pas du blocage induit par la source primaire, comme c’est le cas pour les réseaux réflecteurs ou les antennes à réflecteur. Grâce à leur fonctionnement en mode transmission, les réseaux transmetteurs peuvent être également facilement montés sur des plates-formes mobiles.Les applications Satcom en bande Ka constituent le secteur applicatif majeur de cette thèse. Cette bande fournit un débit de données élevé à la fois pour les liaisons descendantes et les liaisons montantes, en remplacement des systèmes actuels en bande Ku. Dans ce contexte, il convient aussi de prêter une attention particulière aux communications avec des plates-formes mobiles, par exemple les trains à grande vitesse, les avions, etc., ce qui nécessite de mettre au point des antennes à balayage de faisceau. De nombreuses propriétés avancées sont exploitées depuis ces dernières années pour accroître les débits et la flexibilité des systèmes de communication sans fil, par exemple la polarisation circulaire, la double polarisation, le fonctionnement multi-fréquence ou large bande, le dépointage électronique de faisceau. Pour réduire les coûts, des preuves de concept de réseaux transmetteurs non diélectriques sont également proposées. Cette thèse s’est déroulée dans le cadre du projet ANR TRANSMIL (Reconfigurable TRANSmitarrays for beam steering and beam forming at MILlimetre wave). Les objectifs de cette thèse sont de proposer de nouvelles architectures de réseaux transmetteurs fonctionnant en bande Ka en liaison descendante (de 17,7 GHz à 21,2 GHz) et en liaison montante (de 27,5 GHz à 31 GHz). Différents prototypes ont été conçus et fabriqués afin de valider les concepts proposés en bande X et en bande Ka. Un bon accord entre les résultats numériques et mesurés a été obtenu systématiquement. En particulier, les réseaux transmetteurs à double polarisation que nous avons conçus en bande X présentent un gain de 25 dBi et une bande passante à 3 dB de 20% à 10 GHz. Ces propriétés sont indépendantes de la polarisation du champ rayonné, ce qui signifie que des faisceaux de polarisation linéaire orthogonale peuvent être rayonnés indépendamment dans des directions différentes. Un réseau transmetteur bi-bande fonctionnant en bande Ka a également été mis au point. Sa bande passante à 3 dB est de 10% autour des fréquences centrales (19,5 GHz et 29 GHz) et son efficacité de rayonnement atteint 60%. D’autres concepts ont également été étudiés (réseaux transmetteurs sans diélectrique, réseau transmetteur reconfigurable)
Transmitarray is an attractive solution for front-end devices in the next generation of communications (5G). The spatial-fed architecture of transmitarray antennas can compete with phase-arrays due to the absence of feeding network and with reflectarrays since they do not suffer from feed blockage. Thanks to their operation in transmission mode, transmitarrays can be easily mounted on platforms for outdoor environment applications. With mature printed-circuit board technology, there are unstoppable experiments in various frequency bands from cm-wave to mm-wave and up to terahertz in upcoming years for potential applications. Many advanced properties are exploited in transmitarrays in recent years to meet high demands of communications facilities, for example, circular-polarization, dual-/multi-polarization or frequencies through many techniques. Some experiments are consid-ered to validate eligibility of this antenna type in commercial services or military missions, namely electronically steering beam, broad bandwidth, etc. In terms of cost reduction and rigidity, non-dielectric prototypes are also proposed. The Ka-band Satcom applications are the main objective of this thesis through trans-mitarray solution. This band provides high data rate for both down-link and up-link in replacement of the current Ku-band systems with miniaturized module in next dec-ades. Hence, it is worth to pay attention to communications for moving platforms, for example, high-speed trains, planes, etc
APA, Harvard, Vancouver, ISO, and other styles
23

Menegatti, Bruno Del Neri Batista. "Soprando a gaita - bandas de pífanos no sertão baiano." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/27/27157/tde-06032013-163356/.

Full text
Abstract:
Investigação dos conjuntos denominados Bandas de Pífanos ou Zabumbas, atuantes na região do sertão baiano, nas proximidades da cidade de Canudos. Buscamos as fontes bibliográficas sobre o assunto, destacamos as abordagens acadêmicas e realizamos extensa pesquisa de campo na região. Apresentamos um estudo das características ogrnanológicas dos conjuntos com dados da nossa pesquisa de campo. Todos os conjuntos pesquisados utilizam o aerofone longitudinal, a gaita, apesar da denominação pífano também ser utilizada. Procuramos a desambiguação dos termos e tratamos das diferenças entre os aerofones transversais, pifanos, e os longitudinais, gaitas. Apresentamos 40 transcrições musicais realizadas e um estudo das característica musicais dos grupos pesquisados. Analisamos aspectos melódicos, harmônicos, formais e os gêneros musicais praticados pelas Zabumbas do sertão baiano.
Investigation of the bands called Bandas de Pífanos or Zabumbas, operating in the region of Bahia\'s countryside, near the town of Canudos. We draft the academic approaches of the subject, up to now, and present a study of the organological characteristics of the musical instruments based on our field research in the countryside of Bahia. All goups researched utilizes the longitudinal aerofone, the gaita, although the designation fife also be used. We seek the disambiguation of the terms and studied the differences between the transverse aerophones, fifes, and the longitudinal, gaitas. We also presented 40 musical transcriptions and a study of the reserched groups` musical caracteristics. Then, we anilysed the melodical, harmonical and forms aspects as well the musical genres practiced by the Zabumbas of the countryside of Bahia. We highlight our experience in field research and present a study of the characteristics of the musical band of Bendegó, from the Canudos Velho village. We analyze aspects of melodic, harmonic and cadential formula of beginning and termination of transcripts from artists in field research.
APA, Harvard, Vancouver, ISO, and other styles
24

Steele, Natalie. "The relationship between collegiate band members' preferences of teacher interpersonal behavior and perceived self-efficacy." connect to online resource, 2009. http://digital.library.unt.edu/permalink/meta-dc-9826.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Jones, Amanda L. "Revisiting the early format of the big band: So you want to be a band leader?" Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2003. https://ro.ecu.edu.au/theses/1315.

Full text
Abstract:
The aims of this research are to set up a large contemporary ensemble that plays varied repertoire in different performance contexts and may generate at the same time, a vehicle for my composition and arranging. Involved within the research are strategies to increase the musical and performance skills of the musicians, to break down barriers between the audience and performers, to look at ways to include I promote/ increase/ audience participation, to work with the community, and find opportunities for paid employment for big band situations. Aspects of New Orleans brass bands, the Duke Ellington's and Count Basie's Orchestra's will be investigated to determine if and how the concepts of their styles can be adapted to my own music to create something valid for today's situation in a city like Perth, Western Australia.
APA, Harvard, Vancouver, ISO, and other styles
26

Nadir, Houda. "Contribution à la conception d'antennes ultra large bande impulsionnelles d'encombrement réduit." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0062/document.

Full text
Abstract:
Ce mémoire présente une méthodologie de conception d’antennes Ultra Large Bande volumiques à ondes progressives, d’encombrement réduit, dédiées au rayonnement d’impulsions ultra-courtes dans une bande de fréquence allant de 300 MHz à 3 GHz. L’objectif est de concilier une large bande de fréquences rayonnées et de bonnes performances de rayonnements transitoires (niveau élevé, signaux brefs) tout en limitant l’encombrement des antennes. L’insertion d’un matériau diélectrique a été associée au design des antennes ULB afin de réduire leurs dimensions. Ceci a conduit à la synthèse et à la caractérisation de matériaux diélectriques innovants à base de géopolymères, dont la maîtrise de la valeur de la permittivité est possible. Un prototype d’antenne a été réalisé, des mesures des différentes caractéristiques de rayonnement ont été effectuées et comparées aux résultats de simulation pour s’assurer du bon fonctionnement de celle-ci. Cette antenne a également été associée à des applications radar pour la détection de cibles se situant dans différents milieux (air et sol). Les réponses impulsionnelles obtenues pour les différentes scènes radar testées ont été comparées aux résultats mesurées avec d’autres antennes connues
This thesis presents the design of small form factor Ultra Wide Band antennas with progressive waves shape, which is dedicated to ultra-short pulses radiation in a frequency band ranging from 300MHz to 3GHz. The aim is to combine a wide band of radiated frequencies and good performance while limiting the size of antennas. The insertion of a dielectric material has been associated with the design of Ultra Wide Band antennas to reduce their dimensions. This has led to the synthesis and characterization of innovative dielectric materials based on geopolymers, whose mastering of the value of the permittivity is possible. An antenna prototype has been manufactured and measurements of the different radiation characteristics were made and compared to the simulation results to ensure its good functioning. This antenna has also been associated with radar applications for the detection of targets in different environments (air and soil). The impulse responses obtained for the different tested radar scenes have been compared with the results obtained with other known antennas
APA, Harvard, Vancouver, ISO, and other styles
27

Saint, Amans Charles. "Etude du comportement sous choc d'un matériau énergétique par spectroscopie Raman in situ." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2014. http://www.theses.fr/2014ESMA0025/document.

Full text
Abstract:
L’amélioration des performances des dispositifs pyrotechniques requiert une description fine de la transition choc/détonation (TCD) dans les explosifs. Les modèles de TCD existant comportent une part d’empirisme qu’il est souhaitable de réduire à l’aide de données expérimentales à l’échelle microscopique. Pour cela, nous avons mis au point un dispositif permettant de générer des chocs de 2 à 30 GPa et d’analyser en temps réel l’évolution du matériau par spectroscopie. Le système de mesure comporte un laser sonde et un ensemble de spectroscopie Raman rapide. Ce dispositif a été utilisé pour l’étude des mécanismes d’initiation d’un explosif appelé TATB. L’évolution des spectres Raman en fonction de la pression révèle un couplage entre les modes de vibration des groupements NO2 et NH2 provenant de la présence d’un réseau de liaisons hydrogène au sein du TATB. Ce réseau est responsable de la grande stabilité de la molécule. Quelques différences entre les régimes statique et dynamique, imputables à l’effet du chauffage par le choc, sont mises en évidence ; elles semblent indiquer un affaiblissement du réseau de liaisons hydrogène. Les résultats font également apparaître une atténuation progressive du signal Raman sous choc avec la pression. A partir de 9 GPa, le signal n’est plus détectable. Des visualisations par caméras rapides montrent que cette atténuation du signal Raman est accompagnée d’un assombrissement progressif du TATB qui devient totalement opaque à 9 GPa. Des expériences de réflectivité sous choc ont montré que ces deux phénomènes sont dus à un élargissement de la bande d’absorption du TATB
Improving performances and safety of pyrotechnic devices requires a sharp knowledge of the shock to detonation transition phenomenon in high explosives. Current models to describe this phenomenon largely involve empiric parameters based on macro scale experiments. To improve predictive capability of these models, it is necessary to get experimental data at a microscopic scale. To provide such data, we developed an experimental setup to shock a high explosive up to 30 GPa and perform in-situ measurement of its Raman spectra under this loading. The device includes a shock generator based on explosive driven plate impact triggered by a laser pulse and a diagnostic involving an excitation laser and a spectrometer coupled with an intensified CCD. This experiment has been applied to an insensitive high explosive named TATB. Pressure driven evolution of the Raman spectra reveals an important coupling between NO2 and NH2 vibration modes that is due to a strong H bonding within TATB crystal. This bonding is clearly linked to TATB high stability. Differences observed between dynamic and static loading are attributed to shock heating resulting in H bonding weakening. Moreover, results show a progressive decrease in Raman spectra intensity with increasing shock pressure down to a complete signal loss at about 9 GPa. High speed visualisations reveal a progressive darkening of the sample leading to complete opacity at 9 GPa. Reflectivity measurements under shock loading show that these two phenomena are due to a shock-induced enlargement of the TATB absorption band
APA, Harvard, Vancouver, ISO, and other styles
28

Fernández, Fernández Oscar. "Caracterización experimental y modelado de canal MIMO para aplicaciones WLAN y WMAN." Doctoral thesis, Universidad de Cantabria, 2007. http://hdl.handle.net/10803/10668.

Full text
Abstract:
Esta tesis caracteriza experimentalmente el comportamiento del canal MIMO en diferentes escenarios y evalúa la dependencia del rendimiento del canal con la tipología del escenario y diferentes condiciones de propagación. Para facilitar el desarrollo de futuros sistemas con múltiples antenas en estos escenarios, se presentan modelos sencillos y eficientes de canales SISO y MIMO.Se ha realizado el análisis de canales MIMO 2x2 a partir de diversas campañas de medidas realizadas en distintos escenarios interiores, exteriores y mixtos. Se han estudiado dos aspectos fundamentales: la correlación espacial y la capacidad del canal. El estudio se completa con el desarrollo de un método de modelado basado en líneas de retardo. Mediante este método se obtienen modelos sencillos y eficientes de canales SISO y MIMO de los escenarios interiores y mixtos medidos. Así se contribuye al desarrollo de nuevos sistemas de comunicaciones inalámbricos en escenarios mixtos y a facilitar la simulación de sistemas MIMO gracias a los nuevos modelos propuestos.
This thesis characterizes in an experimental way the MIMO channel behavior in different scenarios, including the evaluation of the channel performance dependency with the type of scenario and different propagation conditions. In order to facilitate the development of future systems with multiple antennas in these scenarios, simple and efficient SISO and MIMO channel models are presented.The analysis of the 22 MIMO channel has been based on several measurement campaigns carried out in different outdoor, indoor and mixed environments. Two fundamental aspects are studied: the spatial correlation and the channel capacity. The analysis is completed with the development of a method to model the radio channel based on tapped delay lines. Using this method, simple and efficient SISO and MIMO channel models of indoor, outdoor and mixed scenarios have been obtained. In this way this work contributes to the development of new wireless communication systems and to facilitate the simulation of MIMO systems by means of the new proposed models.
APA, Harvard, Vancouver, ISO, and other styles
29

Silva, Thallyana Barbosa da. "Banda Marcial Augusto dos Anjos: processos de ensino-aprendizagem musical." Universidade Federal da Paraí­ba, 2012. http://tede.biblioteca.ufpb.br:8080/handle/tede/6595.

Full text
Abstract:
Made available in DSpace on 2015-05-14T12:52:27Z (GMT). No. of bitstreams: 1 Arquivototal.pdf: 8670792 bytes, checksum: 4d5805610fe2d9f6e7fb88673440e65b (MD5) Previous issue date: 2012-05-16
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
This research aims to investigate the processo f learning and teaching of Augusto dos Anjos Marching Band, named after the school it belongs to, Escola Municipal de Ensino Fundamental Augusto dos Anjos, located at Cristo Redentor, João Pessoa, capital of Paraíba. The specific objectives of this research are to identify the musical education of the teachers and the conditions of the band concerning the physical structure and the instuments. It also aimed to observe the repertoire and the methodology of teaching that served to the analysis of the pedagogical proposal. Having these, and other observations, it was possible to understand the role that the band plays in the school and to investigate whether teaching music can contribute to the professionalization of the members of the band. The method used to obtain the results of this study was field research, observing the activities of the band; practical and theoretical classes; rehearsals; the shows; the parades and championships and a survey with semi structured interviews and videos. The investigation had its fundaments on readings concerning Musical Education, Arts and related subjects. Having as basis the conceptions and principles of Musical Education, it was possible to state that the teaching on the band has limitations that need to be overcome to provide an effective music teaching. On the other hand, the musical teaching provided contributed in many ways to the students formation, promoting the experience with music, through learning to play an instrument, playing in group, championships and being an influence on leading these instrumentalists to pursue a career as a professional musician.
Este trabalho tem como principal objetivo investigar os processos de ensino-aprendizagem da Banda Marcial Augusto dos Anjos, nome que representa a escola à qual pertence, a Escola Municipal de Ensino Fundamental Augusto dos Anjos, localizada no bairro do Cristo Redentor, na cidade de João Pessoa, capital da Paraíba. Os objetivos específicos da pesquisa foram identificar a formação musical dos docentes e as condições da banda no que se refere ao espaço físico e instrumental. Visou ainda a observação do repertório e da metodologia de ensino que serviram para a análise da proposta pedagógica. Com estas e demais observações, foi possível compreender a função que a banda assume para a escola e investigar se o ensino de música contribui para a profissionalização dos integrantes. O método utilizado para obtenção dos resultados deste estudo foi por meio da pesquisa de campo, ao observar os processos de atividades da banda; as aulas práticas e teóricas; os ensaios; as apresentações; os desfiles cívicos e os campeonatos; além da realização de um questionário, entrevistas semi estruturadas e registros em vídeo. A investigação foi fundamentada levando em consideração leituras bibliográficas que contemplaram produções da área de Educação Musical, Arte e áreas afins. Com base nas concepções e princípios da Educação Musical, foi possível constatar que o ensino de música desenvolvido na banda apresenta limitações que precisam ser superadas para garantir um ensino de música eficaz. Em contrapartida, o ensino musical proporcionado pela banda marcial tem possibilitado significativas contribuições para a formação do estudante, ao promover o contato experiencial com a música, através do aprendizado do instrumento musical, do tocar em grupo, da participação em campeonatos, e ao influenciar instrumentistas a seguirem carreira profissional na área musical.
APA, Harvard, Vancouver, ISO, and other styles
30

ALMEIDA, José Robson Maia de. "Tocando o repertório curricular: bandas de música e formação musical." http://www.teses.ufc.br, 2010. http://www.repositorio.ufc.br/handle/riufc/3302.

Full text
Abstract:
ALMEIDA, José Robson Maia de. Tocando o repertório curricular: bandas de música e formação musical. 2010. 147f. Dissertação (Mestrado em Educação) Universidade Federal do Ceará, Faculdade de Educação, Programa de Pós-Graduação em Educação Brasileira, Fortaleza-CE, 2010.
Submitted by Maria Josineide Góis (josineide@ufc.br) on 2012-07-10T12:13:27Z No. of bitstreams: 1 2010_Dis_JRMAlmeida.pdf: 3435026 bytes, checksum: c7bbb931633af8960fb5405b1b2d0f37 (MD5)
Approved for entry into archive by Maria Josineide Góis(josineide@ufc.br) on 2012-07-18T10:59:06Z (GMT) No. of bitstreams: 1 2010_Dis_JRMAlmeida.pdf: 3435026 bytes, checksum: c7bbb931633af8960fb5405b1b2d0f37 (MD5)
Made available in DSpace on 2012-07-18T10:59:06Z (GMT). No. of bitstreams: 1 2010_Dis_JRMAlmeida.pdf: 3435026 bytes, checksum: c7bbb931633af8960fb5405b1b2d0f37 (MD5) Previous issue date: 2010
O presente trabalho procura entender o processo curricular existente com base nas influências que o repertório exerce na educação musical das bandas de música do Ceará e que aprendizagens surgem desses currículos. O estudo foi realizado com a Banda de Música Padre Assis Portela, do Município cearense de Beberibe, situado na Região Litoral-Leste do Estado. Para auxiliar esta pesquisa, foi necessário realizar um mapeamento com regentes de outros municípios, no intuito de elucidar o atual estado das bandas cearenses, apresentando aspectos como história, repertório e formação musical. A metodologia configurou-se em estudo de caso, antecedido por estudos exploratórios, utilizando aspectos inerentes à pesquisa etnográfica, sendo empregados procedimentos como observações e entrevistas semiestruturadas com os integrantes, ex-integrantes, regentes e ex-regentes da Banda de Beberibe. As informações colhidas foram categorizadas mediante sua relevância diante dos objetivos propostos e, desta maneira, revelam que o repertório da referida Banda recebe várias influências da atual sociedade, como da indústria cultural, da cultura dos Estados Unidos e da herança advinda das bandas mantidas por corporações militares e influenciando diretamente no processo curricular, que está por trás da educação musical deste grupo. Com suporte na formalidade e na informalidade curricular recorrente na Banda estudada, surgem diversas aprendizagens relacionadas com questões musicais, sociais, econômicas e culturais, delineando, desta forma, o currículo presente na Banda de Música Padre Assis Portela.
APA, Harvard, Vancouver, ISO, and other styles
31

Almeida, Josà Robson Maia de. "Tocando o repertÃrio curricular: bandas de mÃsica e formaÃÃo musical." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=4307.

Full text
Abstract:
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico
O presente trabalho procura entender o processo curricular existente com base nas influÃncias que o repertÃrio exerce na educaÃÃo musical das bandas de mÃsica do Cearà e que aprendizagens surgem desses currÃculos. O estudo foi realizado com a Banda de MÃsica Padre Assis Portela, do MunicÃpio cearense de Beberibe, situado na RegiÃo Litoral-Leste do Estado. Para auxiliar esta pesquisa, foi necessÃrio realizar um mapeamento com regentes de outros municÃpios, no intuito de elucidar o atual estado das bandas cearenses, apresentando aspectos como histÃria, repertÃrio e formaÃÃo musical. A metodologia configurou-se em estudo de caso, antecedido por estudos exploratÃrios, utilizando aspectos inerentes à pesquisa etnogrÃfica, sendo empregados procedimentos como observaÃÃes e entrevistas semiestruturadas com os integrantes, ex-integrantes, regentes e ex-regentes da Banda de Beberibe. As informaÃÃes colhidas foram categorizadas mediante sua relevÃncia diante dos objetivos propostos e, desta maneira, revelam que o repertÃrio da referida Banda recebe vÃrias influÃncias da atual sociedade, como da indÃstria cultural, da cultura dos Estados Unidos e da heranÃa advinda das bandas mantidas por corporaÃÃes militares e influenciando diretamente no processo curricular, que està por trÃs da educaÃÃo musical deste grupo. Com suporte na formalidade e na informalidade curricular recorrente na Banda estudada, surgem diversas aprendizagens relacionadas com questÃes musicais, sociais, econÃmicas e culturais, delineando, desta forma, o currÃculo presente na Banda de MÃsica Padre Assis Portela.
APA, Harvard, Vancouver, ISO, and other styles
32

GonÃalves, Cristiane Soares. "Banda de MÃsica de GuanacÃs: caminhos didÃticos para a formaÃÃo humana e musical." Universidade Federal do CearÃ, 2017. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=20187.

Full text
Abstract:
nÃo hÃ
A pesquisa aqui apresentada revela as reflexÃes e os resultados sobre a didÃtica aplicada na formaÃÃo humana e musical de jovens rurais de uma Banda de MÃsica no distrito de GuanacÃs na cidade de Cascavel â CearÃ, mantida pela Sociedade de AssistÃncia e EducaÃÃo Rural - SAERG. As Bandas de MÃsica, como objeto da educaÃÃo musical, vem comprovando ao longo dos anos e de muitas pesquisas, ser um forte instrumento social de educaÃÃo, envolvendo diferentes pessoas em diversos lugares. A Banda de GuanacÃs tornou-se relevante de investigaÃÃo, por promover atravÃs de seu regente, aÃÃes que permitem sua resistÃncia diante do tempo e das dificuldades, transformando a vida de muitos jovens e seus familiares com o ensino da mÃsica. Dessa forma, tivemos como objetivo nesta pesquisa, conhecer e analisar as estratÃgias didÃtico-pedagÃgicas do maestro da Banda de GuanacÃs nos amparando em um estudo de caso etnogrÃfico atravÃs de metodologia de abordagem qualitativa. Amparamo-nos teoricamente em Paulo Freire (2003; 2015) e Vygotsky (1999; 2001) quanto aos fundamentos sobre os saberes socialmente construÃdos em meio ao campo e ao desenvolvimento do homem, junto aos estudos da dialogicidade defendida como instrumento de liberdade e transformaÃÃo no processo didÃtico-pedagÃgico de formaÃÃo dos sujeitos. ApÃs estudos e anÃlises, concluÃmos que o fazer didÃtico promovido pelo mestre da banda contribui de maneira significativa à formaÃÃo humana e musical dos envolvidos na Banda de MÃsica de GuanacÃs.
APA, Harvard, Vancouver, ISO, and other styles
33

PENEDO, Diego Mattos. "An?lise gen?tica e fenot?pica de macacos-prego da Ilha da Marambaia, Mangaratiba, Rio de Janeiro." Universidade Federal Rural do Rio de Janeiro, 2016. https://tede.ufrrj.br/jspui/handle/jspui/1450.

Full text
Abstract:
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-02-22T20:14:46Z No. of bitstreams: 1 2016 - Diego Mattos Penedo.pdf: 4081734 bytes, checksum: 3e13fd4d6f8b8c4d8d31a05fefa2ba14 (MD5)
Made available in DSpace on 2017-02-22T20:14:46Z (GMT). No. of bitstreams: 1 2016 - Diego Mattos Penedo.pdf: 4081734 bytes, checksum: 3e13fd4d6f8b8c4d8d31a05fefa2ba14 (MD5) Previous issue date: 2016-02-26
CAPES
Several studies have been conducted with capuchin monkeys (Sapajus and Cebus) in order to understand their evolutionary histories by South and Central America. Genetic analysis, in association with the coat coloration, assist in the identification of the relationships between species and show the diversity presented by both genera. In Brazil, Sapajus species are predominantly distributed, being S. nigritus endemic to the Atlantic Forest and characteristic of southeast. At Ilha da Marambaia, an important area with forest remaining in the state of Rio de Janeiro, there is a population of capuchin monkeys, but without previous study. The objective of this study was to characterize the population of capuchin monkeys at this region through phenotypic and genetic analyzes, including the coat coloration, the sequencing of the mitochondrial gene cytochrome oxidase II and the evaluation of karyotype with conventional staining and C-band. Interviews with residents and military personnel in the region, were also carried out, in order to identify the possible origin and isolation of the primates. Twelve specimens, eight males and four females, were analyzed. The coat features were consistent with that described for S. nigritus, with coloration varying from brown to blackish on the back, limbs, tail and top of the head, in addition to yellow chest and face with white or light yellow, contrasting. Tufts at the top of the head were seen in adults, being greater in females. The analysis of mitochondrial gene revealed closer proximity of this population with S. xanthosternos, which occurs at Bahia, and then with S. cay that occurs in parts of Brazil and Paraguay. The greatest divergence was in relation to the population of S. nigritus in Argentina. The karyotype was consistent with that described for Sapajus species, with 2n = 54 (XX or XY), although the morphology of the sex chromosome Y, submetacentric, was different from that commonly described in the literature (acrocentric). Presented intercalary C-band the chromosome pairs 4, 11, 12 and 17. The par 11 presented three polymorphisms, all interstitial to euchromatin and diversified from each other by deletion and inversion processes. The pattern of this pair is different from that described, as a small acrocentric, to S. nigritus in populations of Argentina, with banding similar to that considered specific for S. xanthosternos. According to the survey, the population of primates seems to be native of the island and is currently isolated. According to the genetic divergences found, the population of Ilha da Marambaia may have maintained ancestral characteristics. The C-band pattern of the pair 11 indicates that the polymorphism described for populations of Argentina does not correspond to the entire distribution of S. nigritus. These data may help to understand the diversity and evolution of Sapajus, since this would have radiated from southeastern Brazil. Further studies with populations from other regions of Rio de Janeiro are needed to verify the C-band pattern presented for the pair 11 as well as the genetic relationships demonstrated by the mitochondrial gene for the population of Ilha da Marambaia.
Diversos estudos v?m sendo realizados com macacos-prego e caiararas (Sapajus e Cebus) de modo a entender suas hist?rias evolutivas pelas Am?ricas do Sul e Central. An?lises gen?ticas, em associa??o ?s caracter?sticas de pelagem, auxiliam na identifica??o das rela??es entre as esp?cies e evidenciam a diversidade apresentada por ambos os g?neros. No Brasil, est?o distribu?das predominantemente as esp?cies de Sapajus, sendo S. nigritus end?mica de Mata Atl?ntica e caracter?stica do sudeste. Na Ilha da Marambaia, importante ?rea com remanescente florestal no estado do Rio de Janeiro, existe uma popula??o de macacos-prego, sem nenhum estudo anterior. O objetivo deste trabalho foi caracterizar a popula??o de macacos-prego dessa regi?o atrav?s de an?lises fenot?picas e gen?ticas, incluindo o padr?o de pelagem, o sequenciamento do gene mitocondrial Citocromo Oxidase II e a avalia??o do cari?tipo com colora??o convencional e bandamento de heterocromatina constitutiva (banda C). Foram realizadas, tamb?m, entrevistas com moradores e militares da regi?o, de modo a identificar a poss?vel origem e isolamento dos primatas. Foram analisados doze esp?cimes, oito machos e quatro f?meas. As caracter?sticas de pelagem coincidiram, de modo geral, com descrito para S. nigritus, sendo observada colora??o variando de marrom a enegrecida no dorso, membros, cauda e topo da cabe?a, al?m de peito amarelo e face branca ou amarelo-clara, contrastante. Tufos de pelos no topo da cabe?a foram observados nos adultos, sendo maiores nas f?meas. A an?lise do gene mitocondrial revelou maior proximidade da popula??o da ilha com S. xanthosternos, que ocorre na Bahia, e em seguida com S. cay, que ocorre em parte do Brasil e no Paraguai. A maior diverg?ncia apresentada foi em rela??o a popula??es de S. nigritus da Argentina. A an?lise do cari?tipo revelou padr?o condizente com as esp?cies de Sapajus, com 2n = 54 (XX ou XY), embora a morfologia do cromossomo sexual Y, submetac?ntrica, fosse divergente do comumente descrito na literatura (acroc?ntrica). Apresentaram banda C intercalar os pares cromoss?micos 4, 11, 12 e 17. O par 11 mostrou-se com tr?s polimorfismos, todos intercalares e diversificados entre si por processos de dele??o e invers?o. O padr?o deste par foi divergente do descrito, como um pequeno acroc?ntrico, para S. nigritus em popula??es da Argentina, apresentando bandamento semelhante ao considerado espec?fico de S. xanthosternos. Segundo o levantamento realizado, a popula??o de primatas parece ser natural da ilha, estando provavelmente isolada. De acordo com as diverg?ncias gen?ticas encontradas, a popula??o da Ilha da Marambaia pode ter conservado caracter?sticas ancestrais. O padr?o de banda C do par 11 indica que o polimorfismo descrito para popula??es da Argentina pode n?o corresponder a toda a distribui??o de S. nigritus. Estes dados podem auxiliar no entendimento da diversidade e evolu??o das esp?cies de Sapajus, uma vez que este teria irradiado a partir do sudeste brasileiro. Novos estudos com popula??es de outras regi?es do Rio de Janeiro s?o necess?rios para se averiguar o padr?o de bandamento de heterocromatina apresentada para o par 11, bem como as rela??es gen?ticas demonstradas pelo sequenciamento do gene mitocondrial para a popula??o da Ilha da Marambaia.
APA, Harvard, Vancouver, ISO, and other styles
34

SILVA, Jéssica Soares. "Entre toadas, leis e cachês: as práticas das bandas cabaçais do Cariri cearense e as ressignificações do conceito de culturas populares." http://www.teses.ufc.br, 2011. http://www.repositorio.ufc.br/handle/riufc/1479.

Full text
Abstract:
SILVA, Jéssica Soares. Entre toadas, leis e cachês: as práticas das bandas cabaçais do Cariri cearense e as ressignificações do conceito de culturas populares. 2011. 96f. Dissertação (Mestrado em Sociologia) – Universidade Federal do Ceará, Departamento de Ciências Sociais, Programa de Pós-Graduação em Sociologia, Fortaleza-CE, 2011.
Submitted by Maria Josineide Góis (josineide@ufc.br) on 2012-01-05T10:19:59Z No. of bitstreams: 1 2011_Dis_ JSSILVA.pdf: 1620008 bytes, checksum: 146466bd2cfb36cc72ed65c3d3d94ed7 (MD5)
Approved for entry into archive by Maria Josineide Góis(josineide@ufc.br) on 2012-01-05T10:21:48Z (GMT) No. of bitstreams: 1 2011_Dis_ JSSILVA.pdf: 1620008 bytes, checksum: 146466bd2cfb36cc72ed65c3d3d94ed7 (MD5)
Made available in DSpace on 2012-01-05T10:21:48Z (GMT). No. of bitstreams: 1 2011_Dis_ JSSILVA.pdf: 1620008 bytes, checksum: 146466bd2cfb36cc72ed65c3d3d94ed7 (MD5) Previous issue date: 2011
The Cariri of Ceara has long been regarded as the scene of numerous manifestations, are a religious, political, economic or cultural. This circuit triggers regional cultural effervescence that include various forms and common practices. The Cariri is the focus of this study, therefore, as the site of origin of most Cabaçais bands of the State of Ceara. The main objective of this study is to understand how to develop relationships between Cabaçais bands of the Cariri of Ceara and a series of cultural contacts of the circuit. For agents interlocutors take this circuit, which includes the Centro Cultural Banco do Nordeste (CCBNB), the cultural sectors of the Social Service of Commerce (SESC) and the Municipal Culture (Secults), which is the main source of dialogue for construction of this work. Understanding how these people resignify the concept of popular culture and how these people influence on the resignifications reworking of this traditional cultural practice is the motto of this work. The contribution here is intended to cover built into a debate about the practices of the Cabaçais bands on the concept of popular culture beyond any kind of classification and / or restriction. The way adopted here considers cultures, traditions and expressions are permeated by the inherent mutability and hybridity of the globalized world.
A região do Cariri cearense há muito tempo é considerada como palco de inúmeras manifestações, sejam de cunho religioso, político, econômico ou cultural. Tal efervescência regional desencadeia circuitos culturais que englobam várias formas e práticas populares. O Cariri é o foco deste estudo, portanto, por ser o local de origem da grande maioria das bandas cabaçais do Estado do Ceará. O principal objetivo deste trabalho é o de compreender como se desenvolvem as relações entre as bandas cabaçais do Cariri cearense e uma série de interlocutores do circuito cultural. Por interlocutores tomo agentes deste circuito, que engloba o Centro Cultural do Banco do Nordeste (CCBNB), os setores culturais do Serviço Social do Comércio (SESC) e as Secretarias Municipais de Cultura (Secults), sendo essa a principal fonte de diálogo para a construção deste trabalho. Entender como esses sujeitos ressignificam o conceito de culturas populares e como essas ressignificações influenciam na reelaboração da presente prática cultural tradicional é o mote desse trabalho. A contribuição aqui construída pretende abranger-se em um debate sobre as práticas das bandas cabaçais e sobre o conceito de culturas populares para além de qualquer tipo de classificação e/ou restrição. O viés aqui adotado considera que as culturas, tradições e manifestações são permeadas pela hibridez e pela mutabilidade inerente do mundo globalizado.
APA, Harvard, Vancouver, ISO, and other styles
35

Melle, Christophe, David Chaimbault, Fabien Peleau, and Alain Karas. "A Tri-Band L, S, C Prime Focus Feed: Concept, Design and Performance." International Foundation for Telemetering, 2013. http://hdl.handle.net/10150/579680.

Full text
Abstract:
ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV
The flight test mission services need higher data rates due to increased system complexity and the need for more accurate, higher rate, and better data acquisition. The existing L or S band frequency spectrum allocation was a limiting factor to meet this increased data rate requirement. The World Radio-communication Conference (WRC 2007) attributed new additional frequency spectrum allocations in the C band for Aeronautical Mobile Telemetry (AMT). The international flight test community has taken this opportunity to immediately take advantage of the new C-band range 5091-5250MHz. This paper presents the multi-band feed product designed by the RF & Antenna Laboratory of ZODIAC DATA SYSTEMS company. This feed is foreseen to be used in prime focus configuration on any diameter parabola dish providing telemetry and tracking channels in three L, S, and C bands. Here, are described the concept and the technology achieved taking into consideration the performance and industrial constraints. Moreover, this contribution focuses on the electromagnetic simulations of radiating elements, the feed network and RF system integration. This paper is structured as follows: firstly, the objectives and the motivation for developing a prime focus feed which works in L, S, C bands are presented. In particular, the market constraints and approach to find the best solution satisfying the feed RF requirements, and mechanical constraints, such as weight, size and cost, are discussed. The second section describes the 5 step development cycle: principle and technology, design of the telemetry channels and tracking function, cohabitation of the different radiating elements, and problems of the channels isolations. The third section discusses the performance achieved using electromagnetic simulations. The fourth section talks about the integration of RF system feed. The paper concludes by discussing future work using the same concept that is applied to other telecommunication or telemetry frequency bands.
APA, Harvard, Vancouver, ISO, and other styles
36

Sczech, Karin J. "Archäologische Befunde zur Entsorgung im Mittelalter dargestellt am Beispiel der Städte Konstanz und Freiburg i.Br /." Konstanz, 1993. http://www.freidok.uni-freiburg.de/volltexte/110/pdf/band1.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Monteiro, Junior Francisco Sidney da Silva. "Tradição na modernidade: a performance da Banda Cabaçal Padre Cícero de Juazeiro do Norte-CE." Universidade Federal da Paraíba, 2015. http://tede.biblioteca.ufpb.br:8080/handle/tede/8437.

Full text
Abstract:
Submitted by Morgana Silva (morgana_linhares@yahoo.com.br) on 2016-07-25T16:45:54Z No. of bitstreams: 1 arquivototal.pdf: 6201628 bytes, checksum: 5b2d8aac763ce532f18c8b5e2488e8cf (MD5)
Made available in DSpace on 2016-07-25T16:45:54Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 6201628 bytes, checksum: 5b2d8aac763ce532f18c8b5e2488e8cf (MD5) Previous issue date: 2015-04-29
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
This work aims to characterize and analyze the performance of the band "Cabaçal Padre Cicero" through existing structural aesthetic elements related to the historical, social and economic context, in addition to relations between musicians and the audience. At first the work was structured upon a methodological basis mainly based on fieldwork with participant observation. By recording in photographs, using audio and video it has been possible to collect consistent information for further characterization and analysis of the performance of the group in question. Subsequently a brief study was conducted about the terms that are present in the whole of the group and research on the Cabaçais bands. The key concepts culture, tradition, modernity and folklore were characterized and contextualized in the research and understanding of them became essential to the understanding of the group's performance and relationships that shape their musicality. Understanding the Cabaçais bands in their historical, aesthetic and structural aspects was essential for the process of cultural exchanges and the changes built into their practice and musical language, from their private interaction as the modern world could understand.
Esta dissertação tem por objetivo caracterizar e analisar a performance da banda cabaçal Padre Cícero através dos elementos estéticos-estruturais existentes relacionados com o contexto histórico, social e econômico, além das relações entre músicos e público. Em um primeiro momento foi estruturado o trabalho em cima de uma base metodológica baseada principalmente na pesquisa de campo com observação participante. Através do registro em fotografias, áudio e vídeo foi possível coletar informações consistentes para posterior caracterização e análise da performance do grupo em questão. Posteriormente, foi realizado um breve estudo sobre os termos que se fazem presentes no universo do grupo e em pesquisas realizadas sobre as bandas cabaçais. Os conceitos-chaves cultura, tradição, modernidade e folclore foram caracterizados e contextualizados na pesquisa e o entendimento dos mesmos se fez essencial para a compreensão da performance do grupo e as relações moldam sua musicalidade. Entender as bandas cabaçais em seus aspectos históricos, estéticos e estruturais foi imprescindível para que o processo de trocas culturais e as transformações e permanências construídas em sua prática e linguagem musical, a partir de sua interação particular como o mundo moderno, pudessem ser compreendidos.
APA, Harvard, Vancouver, ISO, and other styles
38

Kitelinger, Shannon. "Paul Robert Fauchet's Symphony in B-flat: A Performance Edition for Modern Wind Band Instrumentation." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849787/.

Full text
Abstract:
Paul Robert Fauchet's Symphonie pour Musique d'Harmonie, known in the United States as Symphony in B-flat, is a four-movement composition spanning nearly thirty minutes in length and written in the style of the late romantic composers. Despite its place as one of the first symphonies for wind band, a performance of the piece that represents the composer's 1926 orchestration is difficult due to the inclusion of instruments that are no longer in common practice, including bugles, alto horns, and saxhorns. Later American editions of the work by James Robert Gillette (1933) and Frank Campbell-Watson (1948/1949) replaced these instruments, but also took several other liberties with orchestration and voicing. The primary purpose of this study was the creation of a performance edition of the Symphony for modern wind band that is accessible to a larger audience of performers and listeners. The method involved in creating the modern edition eliminates errors of extant editions and clarifies a number of the discrepancies surrounding the symphony's multiple publications. This edition attempts to retain the composer's voicing and orchestration choices. To accomplish this, the present project considered where modern instrumentation differed from the original sources and attempted to balance timbral similarities between those instruments, while also considering ease of comprehension for a modern ensemble to perform the work. Sources used to create this edition included all published editions of scores and parts, as well as a newly created full score of the 1926 printed parts. The study concludes with the inclusion of the full score of the new performance edition.
APA, Harvard, Vancouver, ISO, and other styles
39

Hosler, Ned Mark. "The brass band movement in North America : a survey of brass bands in the United States and Canada /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487776210793062.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Labegorre, Jean baptiste. "Synthèse et caractérisation de matériaux oxydes et oxylfures pour applications thermoélectriques." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC272/document.

Full text
Abstract:
Le développement de nouveaux matériaux thermoélectriques disposant de bonnes performances et d’un coût contenu est un prérequis nécessaire pour permettre à cette technologie de se démocratiser et de participer activement à la transition énergétique. Les travaux présentés dans cette thèse portent ainsi sur la synthèse et la caractérisation structurale et physico-chimique de composés oxydes, oxysulfures et sulfures peu onéreux afin d’en étudier les propriétés thermoélectriques.La première étude porte sur l’influence des faibles teneurs en indium sur la structure et les propriétés de l’oxyde de zinc. La caractérisation des échantillons par microscopie électronique en transmission met en évidence que la solubilité de l’indium dans le ZnO est inférieure à 0,5 at%. Les défauts bidimensionnels formés dès les faibles concentrations d’indium diminuent fortement la résistivité électrique et la conductivité thermique du matériau. En parallèle de ce travail, notre intérêt s’est porté les performances thermoélectriques de l’oxysulfure BiCuOS au travers d’une substitution au Pb sur le site du Bi. La substitution aliovalente permet une diminution de la résistivité électrique du matériau. Cependant, celle-ci demeure trop élevée en raison d’une faible solubilité du cation divalent dans la phase BiCuOS. Les deux derniers chapitres sont dédiés à l’étude de composés sulfures. Lors de ces travaux, la phase minérale naturelle kiddcreekite (Cu6SnWS8) est synthétisée pour la toute première fois en laboratoire. Le cheminement suivi pour accroître la pureté du produit obtenu est détaillé tandis que les performances thermoélectriques du matériau sont évaluées. Enfin, notre attention s’est portée sur les composés MnBi4S7 et FeBi4S7 dont la structure cristalline semble compatible avec l’obtention d’une faible conductivité thermique de réseau. Les mesures des propriétés de transport électrique et thermique sont corrélées à la structure électronique et aux propriétés vibrationnelles calculées pour les deux phases. Le composé MnBi4S7 apparait ainsi comme un semiconducteur de type-n prometteur pour les applications thermoélectriques
The development of new thermoelectric materials with good performance and low cost is necessary to make this technology more accessible and thus achieve a significant environmental impact. The work presented in this thesis deals with the synthesis and the structural and physicochemical characterisation of inexpensive oxides, oxysulfides and sulfides compounds in order to study their thermoelectric properties.The first study investigates the influence of low indium contents on the structure and properties of zinc oxide. The characterization of the samples by transmission electron microscopy shows that the solubility of indium in ZnO is less than 0.5 at%. The bidimensional defects formed from low concentrations of indium greatly reduce the electrical resistivity and the thermal conductivity of the material. In parallel with this work, our interest focused on the thermoelectric performances of the oxysulfide BiCuOS through a substitution of Pb at the Bi site. The aliovalent substitution allows a decrease in the electrical resistivity of the material. However, the later remains too high due to a low solubility of the divalent cation in the BiCuOS phase. The last two chapters are dedicated to the study of sulfides compounds. During this work, the natural kiddcreekite mineral phase (Cu6SnWS8) is synthesized for the first time in a laboratory. The successive steps followed to increase the purity of the product is described while the thermoelectric performance of the material is evaluated. Finally, our attention focused on the compounds MnBi4S7 and FeBi4S7 whose crystalline structure seems compatible with a low lattice thermal conductivity. The measured electrical and thermal transport properties are correlated with the electronic structure and the vibrational properties calculated for the two phases. The compound MnBi4S7 thus appears as a promising n-type semiconductor for thermoelectric applications
APA, Harvard, Vancouver, ISO, and other styles
41

Vlčková, Veronika. "Specifika obchodu a podnikání v Rumunsku se zaměřením na oblast Banát." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-201656.

Full text
Abstract:
This thesis reports on business opportunities that Romania and especially region of Banat offers to Czech entities and the specifics witch they have to deal with during penetration of this market. First readers learn about cultural specification of Romania and Banat, followed by business negotiation which can be expected in this area and is mainly based on cultural assumptions. Second part is devoted to analysis of the business environment of Romania as a member of the multinational institutions, because without this information can´t be Romania considered as a business partner. Final part focuses specifically on the issue of Banat region, companies that operate there and the business opportunities that the region offers. Work is ended by SWOT analysis of the business environment of Banat and recommendations for potential entrepreneurs entering the market.
APA, Harvard, Vancouver, ISO, and other styles
42

Silva, JÃssica Soares. "Entre toadas, leis e cachÃs: as prÃticas das bandas cabaÃais do Cariri Cearense e as ressignificaÃÃes do conceito de cultura popular." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6866.

Full text
Abstract:
CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior
A regiÃo do Cariri cearense hà muito tempo à considerada como palco de inÃmeras manifestaÃÃes, sejam de cunho religioso, polÃtico, econÃmico ou cultural. Tal efervescÃncia regional desencadeia circuitos culturais que englobam vÃrias formas e prÃticas populares. O Cariri à o foco deste estudo, portanto, por ser o local de origem da grande maioria das bandas cabaÃais do Estado do CearÃ. O principal objetivo deste trabalho à o de compreender como se desenvolvem as relaÃÃes entre as bandas cabaÃais do Cariri cearense e uma sÃrie de interlocutores do circuito cultural. Por interlocutores tomo agentes deste circuito, que engloba o Centro Cultural do Banco do Nordeste (CCBNB), os setores culturais do ServiÃo Social do ComÃrcio (SESC) e as Secretarias Municipais de Cultura (Secults), sendo essa a principal fonte de diÃlogo para a construÃÃo deste trabalho. Entender como esses sujeitos ressignificam o conceito de culturas populares e como essas ressignificaÃÃes influenciam na reelaboraÃÃo da presente prÃtica cultural tradicional à o mote desse trabalho. A contribuiÃÃo aqui construÃda pretende abranger-se em um debate sobre as prÃticas das bandas cabaÃais e sobre o conceito de culturas populares para alÃm de qualquer tipo de classificaÃÃo e/ou restriÃÃo. O viÃs aqui adotado considera que as culturas, tradiÃÃes e manifestaÃÃes sÃo permeadas pela hibridez e pela mutabilidade inerente do mundo globalizado.
The Cariri of Ceara has long been regarded as the scene of numerous manifestations, are a religious, political, economic or cultural. This circuit triggers regional cultural effervescence that include various forms and common practices. The Cariri is the focus of this study, therefore, as the site of origin of most CabaÃais bands of the State of Ceara. The main objective of this study is to understand how to develop relationships between CabaÃais bands of the Cariri of Ceara and a series of cultural contacts of the circuit. For agents interlocutors take this circuit, which includes the Centro Cultural Banco do Nordeste (CCBNB), the cultural sectors of the Social Service of Commerce (SESC) and the Municipal Culture (Secults), which is the main source of dialogue for construction of this work. Understanding how these people resignify the concept of popular culture and how these people influence on the resignifications reworking of this traditional cultural practice is the motto of this work. The contribution here is intended to cover built into a debate about the practices of the CabaÃais bands on the concept of popular culture beyond any kind of classification and / or restriction. The way adopted here considers cultures, traditions and expressions are permeated by the inherent mutability and hybridity of the globalized world.
APA, Harvard, Vancouver, ISO, and other styles
43

Xing, Bin. "Confrontation des aspects statistiques et déterministes de l'amorçage des fissures de fatigue dans les alliages d'aluminium." Châtenay-Malabry, Ecole centrale de Paris, 1998. http://www.theses.fr/1998ECAP0592.

Full text
Abstract:
Le travail de cette thèse comprend l'étude du phénomène de la distribution de la durée de vie de fatigue, qui présente deux zones pour l'alliage aluminium des séries 2000 et 7000. De nombreuses éprouvettes sont soumises à des chargements d'amplitude constante. Les résultats d'essais sont analysés par la méthode statistique. Les surfaces de rupture et les surfaces libres des éprouvettes sont observées et analysées pour étudier le mécanisme d'amorçage des fissures. Les fissures courtes sont observées et étudiées avec plusieurs méthodes d'examen améliorées. Enfin, une nouvelle courbe de Wolhler est établie avec tous les résultats d'étude. Avec cette courbe, un moyen de prévision de vie de l'amorçage des fissures est donc trouvé. Il est facile à utiliser dans les cas rencontres usuellement dans le mode aéronautique.
APA, Harvard, Vancouver, ISO, and other styles
44

Millot, Anthony. "Etude d'un réseau de capteurs environnementaux en bande ISM." Phd thesis, Université d'Orléans, 2010. http://tel.archives-ouvertes.fr/tel-00573695.

Full text
Abstract:
Cette thèse présente l'étude d'un réseau de capteurs pour la surveillance en temps réel de la qualité des eaux souterraines. L'objectif est de réussir à communiquer dans la bande de fréquences libre à 433MHz sur plusieurs dizaines de kilomètres. Le problème majeur des bandes libres est la présence de transmissions parasites (brouilleurs). Nous avons donc, en premier lieu, mis en évidence de la présence de ces brouilleurs et étudier leur impact sur les communications. Après analyse, il s'avère que les brouilleurs sont très nombreux et puissants mais que leur répartition dans la bande est inégale. Une étude spectrale de la bande semble nécessaire, avant la mise en place du réseau, afin de transmettre dans les canaux les moins pollués. Des communications nocturnes sont également à privilégier car les brouilleurs sont moins nombreux la nuit. Nous présentons ensuite une architecture réseau, adaptée au cahier des charges et à cette bande de fréquences. Nous avons également testé un composant RF dédié aux transmissions en bande ISM. Les résultats montrent que les performances de ce composant sont faibles pour des communications longues distances en présence de brouilleurs. Un récepteur radiofréquence simple ne permet donc pas de réaliser des communications fiables dans ces conditions. Le prototype complet du réseau, développé durant ces travaux, est ensuite décrit. Pour finir, nous proposons un nouveau concept de récepteur, utilisant un réseau d'antennes phasé et un détecteur cyclostationnaire, pour pallier au problème des brouilleurs. Le but est de stocker les signaux reçus pour les traiter en temps différé à l'aide d'algorithmes de filtrage spatial. Des simulations montrent l'efficacité de ce concept.
APA, Harvard, Vancouver, ISO, and other styles
45

Celis, Retana Arlensiú Eréndira. "Gap en graphène sur des surfaces nanostructurées de SiC et des surfaces vicinales de métaux nobles." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS417/document.

Full text
Abstract:
L'électronique basée sur le graphène fait face à un verrou technologique, qui est l'absence d'une bande interdite (gap) permettant une commutation entre les états logiques allumé et éteint. Les nano-rubans de graphène rendent possible l'obtention de ce gap mais il est difficile de produire de tels rubans avec une largeur précise à l'échelle atomique et des bords bien ordonnés. Le confinement électronique est une façon élégante d'ouvrir un gap et peut en principe être réglé en ajustant la largeur des nano-rubans. Cette thèse est consacrée à la compréhension de l'ouverture du gap par nano-structuration. Nous avons suivi deux approches: l'introduction d'un potentiel super-périodique sur le graphène par des substrats vicinaux de métaux nobles et le confinement électronique dans des nano-rubans sur des facettes artificielles du SiC. Des potentiels super-périodiques ont été introduits avec deux substrats nano-structurés: l'Ir(332) et un cristal courbé de Pt(111) multi-vicinale. Le graphène modifie les marches initiales des substrats et les transforme en une succession de terrasses (111) et de régions d'accumulation de marches, observés par STM. La nano-structuration du substrat induit alors un potentiel super-périodique dans le graphène entraînant l'ouverture de gaps sur la bande π du graphène observée par ARPES, ce qui est cohérent avec la périodicité structurale observé par STM et LEED. Les gaps peuvent être convenablement expliqués par un modèle de type hamiltonien de Dirac; ce dernier nous permet de retrouver la force du potentiel à la jonction entre les terrasses (111) et la région d'accumulation des marches. La force du potentiel dépend du substrat, de la périodicité associée à la surface et du type de bord des marches (soit type A ou B). Nous avons aussi changé le potentiel de surface en intercalant du Cu sur l'Ir(332), qui reste préférentiellement au niveau de l'accumulation des marches. La surface présente des régions dopées n alors que les régions non-intercalées restent dopées p, conduisant à une succession de rubans dopés n et p pour une même couche de graphène continue. La seconde approche pour contrôler le gap est par confinement électronique dans des nanorubans de graphène synthétisés sur du SiC. Ces rubans sont obtenus sur des facettes du SiC ordonnées périodiquement. Comme l'ouverture d'un gap d'origine inconnue avait été observée par ARPES, nous avons réalisé les premières études atomiquement résolues par STM. Nous démontrons la régularité et la chiralité des bords, nous localisons précisément les nanorubans de graphène sur les facettes et nous identifions des mini-facettes sur du SiC. Afin de comprendre le couplage entre le graphène et le substrat, nous avons étudié une coupe transversale par STEM/EELS, en complément des études par ARPES et STM/STS. Nous observons que la facette (1-107) où le graphène se trouve présente un sub-facettage sur les extrémités haute et basse. Le sub-facettage comprend des mini-terrasses (0001) et des mini-facettes (1-105). Le graphène s'étend tout au long du la région sub-facettée, et est couplé au substrat dans les mini-terrasses (0001), ce qui le rend semi-conducteur. En revanche, le graphène au-dessus des mini-facettes (1-105) est découplé du substrat mais présente un gap observé par EELS, et compatible avec les observations faites par ARPES. L'origine du gap est expliquée par le confinement électronique sur des nano-rubans de graphène de 1 - 2 nm de largeur localisés sur ces mini-facettes (1-105)
The major challenge for graphene-based electronic applications is the absence of the band-gap necessary to switch between on and off logic states. Graphene nanoribbons provide a route to open a band-gap, though it is challenging to produce atomically precise nanoribbon widths and well-ordered edges. A particularly elegant method to open a band-gap is by electronic confinement, which can in principle be tuned by adjusting the nanoribbon width. This thesis is dedicated to understanding the ways of opening band-gaps by nanostructuration. We have used two approaches: the introduction of a superperiodic potential in graphene on vicinal noble metal substrates and the electronic confinement in artificially patterned nanoribbons on SiC. Superperiodic potentials on graphene have been introduced by two nanostructured substrates, Ir(332) and a multivicinal curved Pt(111) substrate. The growth of graphene modifies the original steps of the pristine substrates and transforms them into an array of (111) terraces and step bunching areas, as observed by STM. This nanostructuration of the underlying substrate induces the superperiodic potential on graphene that opens mini-gaps on the π band as observed by ARPES and consistent with the structural periodicity observed in STM and LEED. The mini-gaps are satisfactorily explained by a Dirac-hamiltonian model, that allows to retrieve the potential strength at the junctions between the (111) terraces and the step bunching. The potential strength depends on the substrate, the surface periodicity and the type of step-edge (A or B type). The surface potential has also been modified by intercalating Cu on Ir(332), that remains preferentially on the step bunching areas, producing there n-doped ribbons, while the non-intercalated areas remain p-doped, giving rise to an array of n- and p- doped nanoribbons on a single continuous layer. In the second approach to control the gap, we have studied the gap opening by electronic confinement in graphene nanoribbons grown on SiC. These ribbons are grown on an array of stabilized sidewalls on SiC. As a band-gap opening with unclear atomic origin had been observed by ARPES, we carried-out a correlated study of the atomic and electronic structure to identify the band gap origin. We performed the first atomically resolved study by STM, demonstrating the smoothness and chirality of the edges, finding the precise location of the metallic graphene nanoribbon on the sidewalls and identifying an unexpected mini-faceting on the substrate. To understand the coupling of graphene to the substrate, we performed a cross-sectional study by STEM/EELS, complementary of our ARPES and STM/STS studies. We observe that the (1-107) SiC sidewall facet is sub-faceted both at its top and bottom edges. The subfacetting consists of a series of (0001) miniterraces and (1-105) minifacets. Graphene is continuous on the whole subfacetting region, but it is coupled to the substrate on top of the (0001) miniterraces, rendering it there semiconducting. On the contrary, graphene is decoupled on top of the (1-105) minifacets but exhibits a bandgap, observed by EELS and compatible with ARPES observations. Such bandgap is originated by electronic confinement in the 1 - 2 nm width graphene nanoribbons that are formed over the (1-105) minifacets
APA, Harvard, Vancouver, ISO, and other styles
46

Candolfi, Christophe. "Synthèse, caractérisation physico-chimique et propriétés de transport de composés de type Mo3Sb7." Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL041N/document.

Full text
Abstract:
Les préoccupations environnementales actuelles ont conduit à un regain d’intérêt pour la conversion d'énergie par effets thermoélectriques au cours de ces 20 dernières années. Le challenge lié à cette technologie consiste à découvrir des matériaux qui possèdent à la fois une faible conductivité thermique, une forte conductivité électrique et un fort pouvoir thermoélectrique. Les travaux présentés dans ce mémoire se sont orientés vers l'étude de phases cristallines complexes à base de Mo3Sb7. Contrôler finement les propriétés électriques et thermiques de ces matériaux par le biais de substitutions appropriées et relier les propriétés physiques aux propriétés structurales et électroniques ont été au coeur de ces travaux de recherche. Des résultats significatifs ont ainsi pu être obtenus tant au niveau de la synthèse et de la caractérisation physico-chimique qu'au niveau des propriétés magnétiques et de transport. En particulier, nous avons pu mettre en évidence les propriétés exotiques du composé Mo3Sb7 dont la compréhension s'est révélée indispensable pour l'étude des propriétés de transport des matériaux substitués ternaires et quaternaires. Les différentes possibilités de substitution ont alors permis d'améliorer de façon substantielle les performances thermoélectriques du composé Mo3Sb7 et ont, de ce fait, conduit à la découverte de nouveaux matériaux surpassant les meilleurs matériaux connus à ce jour (Si-Ge) et utilisés sur la gamme 900 - 1200 K dans des applications en génération d'électricité
Due to current environmental concerns, a resurgence of interest in thermoelectricity have been witnessed by the last 20 years. The challenge raised by this technology lies in identifying materials that display low thermal conductivity as well as both high electrical conductivity and thermopower. The work presented in this manuscript deals with a thorough study on molybdenum-antimony based complex crystalline structure. To finely control the thermal and electrical properties of these compounds through judicious substitutions and to link up physical and structural properties were at the heart of this in-depth study. Not only did we obtain outstanding results regarding the synthesis and both the chemical and structural characterizations but we also discovered intriguing magnetic and transport properties. Particularly, we emphasized the exotic properties exhibited by the binary Mo3Sb7 compound whose a deep understanding were essential to study the transport properties of the ternary and quaternary alloys. The different substitutions we have considered were found to substantially improve the thermoelectric properties of the Mo3Sb7 compound and thus, led to the synthesis of new prospective thermoelectric materials that surpass the best compounds discovered up-to-now (Si-Ge) and used in power generation applications in the 900 – 1200 K temperature range
APA, Harvard, Vancouver, ISO, and other styles
47

Gonçalves, Celso Marques. "Confluências idiomáticas: processos de transterritorialidade em Roda dos Trinos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/27/27157/tde-13032013-114301/.

Full text
Abstract:
O trabalho consiste na reflexão sobre a produção composicional estruturada em processos de hibridação, e a aplicação deste conceito à elaboração de uma peça para a formação instrumental de banda sinfônica, onde se promove a confluência entre gêneros e técnicas de linguagens distintas. Partindo sobre os princípios que emolduraram o conceito Third Stream de fusão entre o jazz com a música erudita, verificamos as possibilidades de ampliação dessa proposta agregando também elementos da música popular brasileira, e de acordo com os rumos tomados, conferimos alguns trabalhos que se assemelham ao dessa dissertação, no que concerne ao procedimento de hibridismo, mostrando fortes relações com as características da produção musical pós-moderna.
The work consists of the reflection about the compositional production structured on hybrid processes, and the use of this concept to the development of a piece for instrumental concert band, which promotes the confluence between genres and techniques of distinct languages. Starting with the principles that framed the Third Stream concept of the fusion between jazz and classical music, we verify the possibilities of the enlargement of this proposal aggregating elements of Brazilian music, and in accordance with the direction taken, we found some works that resemble the piece of this dissertation, in relation to hybrid procedures, showing strong relationships with the characteristics of post-modern musical production.
APA, Harvard, Vancouver, ISO, and other styles
48

Lo, Albert. "The Impact of American Conductors on the Development of Japanese Wind Band Repertoire as Evidenced in the Programming of Tokyo Kosei Wind Orchestra, Musashino Academia Musicae, Showa Academia Musicae, Senzoku Gakuen School of Music, and Tokyo University of the Arts." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404612/.

Full text
Abstract:
The wind bands in Japan are considered by many scholars and wind band conductors to be among some of the finest ensembles in today's wind ensemble medium. The literature and repertoire of Japanese ensembles have evolved from orchestral transcriptions, patriotic music, and military marches to original compositions by European, American, and Japanese composers. British conductor Timothy Reynish states that Japanese wind band music has looked traditionally towards the United States and occasionally United Kingdom for inspiration and repertoire. This phenomenon can be attributed to the many collegiate American and the few English wind band conductors who traveled to Japan as guest conductors, and in some cases, became residents of Japan. The focus of this study is to closely examine this significant impact of American collegiate wind band conductors, their influence on Japanese programming and how that programming has affected the collegiate repertoire. This study includes surveys of repertoire, concert programs, discographies of recordings, and interviews with prominent American conductors currently conducting in Japan. This research documents the impact that American wind band conductors have had on the programming of Japanese wind bands and how their influence have altered the collegiate repertoire. Evidence of this impact is documented by Toshio Akiyama, who states that "The influence of visiting musicians from abroad must be measured as one of the most influential aspects affecting Japanese band growth. Although the effect of Japanese musicians traveling to the United States or Europe has been beneficial, the overall impact on large numbers of people has been more directly due to the visitors from abroad."
APA, Harvard, Vancouver, ISO, and other styles
49

Morse, Matthew C. 1967. "The West Point Band's Wind Commissioning Project in Celebration of the Bicentennial of the United States Military Academy." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc984246/.

Full text
Abstract:
The United States Military Academy Band, also known as the West Point Band is the oldest active band in the United States Army and the oldest unit at the United States Military Academy, and is considered to be one of the finest military musical organizations in the world. The band has also been instrumental in facilitating the creation of new works for wind band.As the commissioning of new music has been essential to the expansion of the wind band's repertoire, several major commissioning projects were undertaken in the mid-twentieth century by various organizations, including the West Point Band, the Goldman Band in conjunction with the League of Composers and later the American Bandmasters Association, Kappa Kappa Psi and Tau Beta Sigma, the American Wind Symphony, and the College Band Directors National Association. These commissioning projects and many others have contributed hosts of new quality works to the repertoire of the wind band. The West Point Band's 1952 commissioning project celebrating the Sesquicentennial of the United States Military Academy was among the first of these mid-twentieth century commissioning projects to seek out prominent composers of the day and have them write works for wind band. The project contributed several seminal pieces to the wind band's repertoire, including Morton Gould's Symphony for Band: West Point. In 1996, as tribute to both the Academy and to the earlier commissioning project, the West Point Band sought to celebrate the Academy's 2002 bicentennial in a similar fashion by commissioning well-known composers to contribute substantial wind works. These pieces would be premiered and recorded by the West Point Band over a number of years, including a gala Bicentennial Celebration concert at Carnegie Hall in March 2002. The purpose of this study is to create a consolidated written record of the wind music composed for the West Point Band as part of the band's Bicentennial Wind Commissioning Project, and to describe the process and circumstances by which this music was created and premiered. The continuing development of a quality original repertoire is important to the wind band community as a whole, and commissioning composers to write wind band music is the primary means by which new music is acquired. By any account, the twenty-six works produced through the West Point Band's Bicentennial Commissioning Project constitute a significant contribution to this repertoire. As this project and many of these pieces are not well known, it is the author's intent to bring increased attention to this commissioning project and to this music.
APA, Harvard, Vancouver, ISO, and other styles
50

Steinberg, David. "Otimização da largura de banda de ganho de um amplificador Raman na banda "O" baseada em algoritmo genético." Universidade Presbiteriana Mackenzie, 2011. http://tede.mackenzie.br/jspui/handle/tede/1401.

Full text
Abstract:
Made available in DSpace on 2016-03-15T19:37:35Z (GMT). No. of bitstreams: 1 David Steinberg.pdf: 1201176 bytes, checksum: 38de6b0554611de53adf67ca19a556a1 (MD5) Previous issue date: 2011-01-28
In this work, the O-band discrete Raman amplifier gain bandwidth optimization using genetic algorithm of a commercial simulator is carried out. The main objective of the study was to optimize the wide Raman amplifier gain bandwidth obtaining values of gain variation less than 0.5 dB. Using a fiber DCF (Dispersion Compensating Fiber) as Raman amplifier medium, the pump number was varied and the gain variation for each pump configuration has been verified. For a fixed 70 nm (1275-1345 nm) bandwidth consisting of 62 signal frequencies points, the results were generated for one, two, three, four, five, six, seven and eight backward pumps, which with the last one it was obtained the best result of 0.35 dB gain variation. In addition to this analysis, it was also found the Raman amplifier noise figure for this band and made a brief comparison with the conventional profile bands.
Neste trabalho a otimização da largura de banda de ganho de um amplificador Raman discreto na banda "O" utilizando algoritmo genético de um simulador comercial foi realizada. O objetivo principal do trabalho foi otimizar a maior largura de banda de ganho do amplificador Raman obtendo valores de variação de ganho menores que 0.5 dB. Utilizando uma fibra DCF (Dispersion Compensating Fiber) como meio de ganho do amplificador Raman, o número de bombeio foi variado e a variação de ganho para cada configuração de bombeio foi verificada. Para uma largura de banda fixa em 70 nm (1275-1345 nm) compreendendo 62 pontos de freqüências de sinal, foram gerados resultados para um, dois, três, quatro, cinco, seis, sete e oito bombeios contrapropagantes sendo que com esta última configuração foi obtido o melhor resultado de variação de ganho de 0.35 dB. Além desta análise, também foi verificado o perfil da figura de ruído do amplificador Raman nesta banda e feita uma breve comparação com o perfil em bandas convencionais.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography