Made available in DSpace on 2015-04-14T13:38:29Z (GMT). No. of bitstreams: 1 434167.pdf: 1410896 bytes, checksum: 457c48e0ac1815c4f8db67bfedd32359 (MD5) Previous issue date: 2011-09-23 / Esta tese analisa a classifica??o dos verbos e das vozes verbais do Portugu?s Brasileiro ? luz da Teoria da Reg?ncia e Liga??o proposta por Chomsky (1981), a qual fornecer? base te?rica para uma proposta de revis?o da Nomenclatura Gramatical Brasileira. Consequentemente, ? tamb?m proposta a reclassifica??o desses verbos e vozes verbais. Discute-se ainda a inadequa??o de alguns conceitos e exemplos de duas gram?ticas do Portugu?s Brasileiro com modelos te?ricos diferentes; e tecem-se considera??es a respeito do artigo Em defesa da categoria de voz m?dia no Portugu?s Brasileiro (CAMACHO, 2003), que prop?e a inclus?o dessa voz verbal entre as tr?s j? existentes: ativa, passiva, reflexiva.

Made available in DSpace on 2015-04-14T13:39:16Z (GMT). No. of bitstreams: 1 389262.pdf: 544405 bytes, checksum: 6280c4cfa7ca4ad45d31bf6c76a1c124 (MD5) Previous issue date: 2006-12-15 / Esta disserta??o versa sobre as vozes verbais, utilizando a Teoria da Reg?ncia e Liga??o, proposta por Chomsky (1981), que fornecer? subs?dios para a an?lise de conceitos e exemplos trazidos por quatro gram?ticas do Portugu?s Brasileiro amplamente adotadas pelos falantes brasileiros, especialmente por alunos e professores de escolas de Ensino Fundamental e M?dio. Discute-se a inadequa??o de alguns conceitos e exemplos e sugere-se que tal problema ? gerado pela exist?ncia de outro tipo de voz verbal a Voz M?dia no PB, que ? desconsiderada pelos autores das obras do corpus.

Glass is an inherrently strong and elastic building material that allows the enclosure of spaces to provide both comfort and &aelig / sthetic appeal. It is evidently due recognition of these properties that has resulted in the current propensity to use it in ever larger sizes / and then with minimum&ndash / if not total absence&ndash / of visible supporting structure. It is, however, its lack of plastic behavior under stress&ndash / leading to catastrophic failure without warning&ndash / that has been the main drawback preventing its use as a structural material on its own. Ergo, the development of composite configurations with plastic interlayers, commonly known as structural glass. Contemporary working methods for glass have also been able to provide better structural characteristics&ndash / particularly after heat treatments, which reduce its vulnerability to cracking and brittle failure. In com-bination, these methods offer designers the possibility of using glass panels capable of acting as load-carrying structural elements. The aim of this study was to investigate the performance of glass-adhesive-glass composite, or laminated, elements and the use of glass as a structural material in light of their inherent strength properties. Here, an attempt was made to define the be-havior of interlayers in structural glass and to then prepare a selection guide. To this end, it was necessary to first gather information about the materials and design methods used to create glass structures. As the literature notes that such stresses are particularly important to structural glass design due to the inability of the material to flow plastically and to thus relieve high stresses, pertinent simulation techniques (e.g., finite element analysis) were then used to investigate shear transfer between glass panes and interlayers. These simulations allowed determination of stiffness with different types of interlayer for panes of different dimensions and orien-tation in respect to loading conditions. It was the results of these analyses that were finally compiled into the selection guide already noted. It is expected that these results will make a worthwhile contribution to developing glass structure design and its application in practice.

We consider the reaction-diffusion-advection (RDA) equations resulting in air pollution mod- eling problems. We employ the finite element method (FEM) for solving the RDA equations in two dimensions. Linear triangular finite elements are used in the discretization of problem domains. The instabilities occuring in the solution when the standard Galerkin finite element method is used, in advection or reaction dominated cases, are eliminated by using an adap- tive stabilized finite element method. In transient problems the unconditionally stable Crank- Nicolson scheme is used for the temporal discretization. The stabilization is also applied for reaction or advection dominant case in the time dependent problems. It is found that the stabilization in FEM makes it possible to solve RDA problems for very small diffusivity constants. However, for transient RDA problems, although the stabilization improves the solution for the case of reaction or advection dominance, it is not that pronounced as in the steady problems. Numerical results are presented in terms of graphics for some test steady and unsteady RDA problems. Solution of an air pollution model problem is also provided.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-12-04T22:03:15Z No. of bitstreams: 1 AnaLuciaCarneiroDeOliveira_DISSERT.pdf: 4425502 bytes, checksum: ac3d3bd904a4902d275205e16cbe2f7c (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-12-11T20:21:12Z (GMT) No. of bitstreams: 1 AnaLuciaCarneiroDeOliveira_DISSERT.pdf: 4425502 bytes, checksum: ac3d3bd904a4902d275205e16cbe2f7c (MD5) / Made available in DSpace on 2017-12-11T20:21:12Z (GMT). No. of bitstreams: 1 AnaLuciaCarneiroDeOliveira_DISSERT.pdf: 4425502 bytes, checksum: ac3d3bd904a4902d275205e16cbe2f7c (MD5) Previous issue date: 2017-06-20 / Esta Pesquisa teve como objetivo sistematizar conte?dos aplic?veis para a forma??o docente na ?rea da Reg?ncia Coral Infantil em um Projeto de Extens?o Universit?ria envolvendo alunos do Curso de Licenciatura em M?sica da UFRN. Nesse contexto, 11 participantes integraram o Estudo: uma regente - pesquisadora, mestranda; uma regente auxiliar e pianista, aluna do Curso de P?s - Gradua??o em M?sica; 7 licenciandos em M?sica; uma pianista - aluna do Bacharelado em M?sica; uma preparadora vocal ? aluna do Curso T?cnico em M?sica / Canto. A Pesquisa considerou tamb?m as atividades desenvolvidas pela pesquisadora nas disciplinas Atividades Orientadas II - Metodologia do Ensino da Voz - e M?sica Coral, no Curso de Licenciatura em M?sica da UFRN, durante o semestre letivo de 2015.2 bem como experi?ncias no Projeto de Extens?o Coral Infantil da UFRN, no semestre letivo de 2016.1. Para tanto, o trabalho est? fundamentado em autores como Figueiredo (1990), Schimiti (2003), Zander (2008), Fonterrada (2008), Grings (2011), Dias (2011), Loureiro (2012), Esperidi?o (2012), Gois (2015), Gaborim - Moreira (2015). Como procedimento metodol?gico, foi realizada uma pesquisa - a??o (TRIPP, 2005), estruturada em 4 fases: planejamento, a??o, monitoramento e avalia??o. Por meio desse procedimento, foi poss?vel elaborar e desenvolver atividades pedag?gicas e musicais para o ensino de Reg?ncia Coral Infantil que est?o relatadas por meio de descri??o do di?rio de campo, registros de imagens fotogr?ficas, observa??es e depoimentos de alunos da Licenciatura, coletados atrav?s de um question?rio semiestruturado. Estes depoimentos apoiam que as atividades realizadas no Projeto de Extens?o do Coral Infantil da UFRN foram muito significativas para os licenciandos e contribu?ram para o desenvolvimento de suas habilidades e compet?ncias como regentes. Diante dos resultados obtidos, acreditamos que esta Pesquisa contribui para a amplia??o das discuss?es sobre a Reg?ncia Coral Infantil na forma??o docente em M?sica. / This research aimed to systematize applicable contents for teacher training in the area of children?s choral conducting in a university extension project involving students of the Undergraduate Music Course of UFRN. In this context, 11 participants integrated the study: a regent-researcher, master's degree; a assistant conductor and pianist, a postgraduate student in music; 7 graduates in music; a pianist ? student bachelor in music; a vocal coach - technical / music singing student. The research also considered the activities developed by the researcher in the disciplines Oriented Activities II - Voice Teaching Methodology - and Choral Music, in the Music Licensing Course of UFRN, during the academic semester of 2015.2 as well as experiences in the UFRN Children's Coral Extension Project, in the academic semester of 2016.1. To do so, the work is based on authors such as Figueiredo (1990), Schimiti (2003), Zander (2008), Fonterrada (2008), Grings (2011), Dias (2011), Loureiro (2012), Esperidi?o (2012), Gois (2015) and Gaborim - Moreira (2015). As a methodological procedure, we carried out an action research (TRIPP, 2005), structured in 4 phases: planning, action, monitoring and evaluation. Through this procedure, it was possible to elaborate and develop pedagogical and musical activities for the teaching of children's choral conducting, reported by diary description, photographic image records, observations and testimonials of undergraduate students collected through a semi-structured questionnaire. These testimonials support that the activities carried out in the UFRN Children's Coral Extension Project were very significant for the graduates and contributed to the development of their skills and competences as conductors. In light of the results obtained, we believe that this research contributes to broaden the discussions about teacher training in children?s choral conduction.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-03-12T20:35:47Z No. of bitstreams: 1 LeandroFernandesDeOliveira_DISSERT.pdf: 5943967 bytes, checksum: 2eb679a93d4a33a3455f3fd503724733 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-03-19T11:22:40Z (GMT) No. of bitstreams: 1 LeandroFernandesDeOliveira_DISSERT.pdf: 5943967 bytes, checksum: 2eb679a93d4a33a3455f3fd503724733 (MD5) / Made available in DSpace on 2018-03-19T11:22:41Z (GMT). No. of bitstreams: 1 LeandroFernandesDeOliveira_DISSERT.pdf: 5943967 bytes, checksum: 2eb679a93d4a33a3455f3fd503724733 (MD5) Previous issue date: 2017-12-11 / Apresenta a experi?ncia de um trabalho de constru??o perform?tica onde o regente atua na qualidade de mediador no processo interpretativo utilizando, como ferramenta, as t?cnicas estendidas de duas obras: As Quatro Esta??es Portenhas de Astor Piazzolla (1921-1992) e Itiner?rio da Passagem: Ver?nica Nadir de S?lvio Ferraz (1959-). Utiliza a metodologia da pesquisa a??o considerando que a abordagem interpretativa ? desenvolvida pelo autor desta Pesquisa enquanto regente e diretor art?stico da Orquestra Funffec de Cordas (OFC). O contexto social da OFC inclui um trabalho desenvolvido a partir do ano de 2013 e conta com a participa??o de jovens com idade entre 10 e 22 anos. Este Projeto possui uma base t?cnica norteada pelos m?todos tradicionais no ensino de cordas friccionadas escritos, em sua maioria, no s?culo XIX. O objetivo da pesquisa ? apontar as principais dificuldades encontradas no trabalho deste repert?rio em rela??o ?s t?cnicas estendidas. Deste ponto, busca-se explorar as possibilidades e vari?veis oferecidas e, atrav?s do di?logo e pesquisa, estabelecer um crit?rio para a interpreta??o. Ap?s o trabalho de articula??o te?rica e anal?tica das Obras, estabelece-se o processo de constru??o interpretativa, principalmente, no que tange as t?cnicas estendidas utilizadas pelos compositores, anteriormente, mencionados. Assim, elementos das t?cnicas estendidas foram abordados, bem como seus conceitos e aplica??es e os poss?veis resultados sonoros. A comunica??o nos ensaios abriu espa?os para a opini?o dos jovens m?sicos na tentativa de estabelecer um processo em que suas experimenta??es e concep??es de sonoridades pudessem ser aplicadas no processo de interpreta??o do repert?rio proposto. / Presents a experience of work of the performance construction where the conductor acts as mediator in the interpretative process, using as tool the extended techniques of two works: The Four Seasons of Buenos Aires by Astor Piazzolla (1921-1992) and Intiner?rio de Passagem: Ver?nica Nadir by Silvio Ferraz (1959-). We used the action research methodology, considering that the interpretative approach is developed by the author of this research as a conductor and artistic director of the Orquestra Funffec de Cordas (OFC). The social context of the OFC includes a work which was developed since 2013 and it counts on the participation of young people with ages between 10 and 22 years old. This project has a technical base guided by the traditional methods on the teaching of written friction strings, mostly, in the 19th century. The purpose of this research is to identify the main difficulties encountered in the work of this repertoire in relation of the extended techniques, in the point of view seeks to explore the possibilities and available variables and trough this dialog and research, stablish a criterion to the interpretation. After the work of theoretical work and analytical articulation of the work, we established the process of the interpretative construction especially in what concerns the extended technique used by the compositors mentioned above. In this way, elements of the extended techniques were mentioned, such as its concepts and applications and the possible sound result. The communication on the rehearsal opened up space to the opinion of the young musicians on the attempt of stablish a process which its experimentations and conceptions of sonority could be applied on the process of interpretation and suggested repertoire.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-04-04T00:24:30Z No. of bitstreams: 1 GunnarMenezesSilvestre_DISSERT.pdf: 2511805 bytes, checksum: 0c33f669b2aced46c945651773a850c7 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-04-12T19:44:43Z (GMT) No. of bitstreams: 1 GunnarMenezesSilvestre_DISSERT.pdf: 2511805 bytes, checksum: 0c33f669b2aced46c945651773a850c7 (MD5) / Made available in DSpace on 2017-04-12T19:44:43Z (GMT). No. of bitstreams: 1 GunnarMenezesSilvestre_DISSERT.pdf: 2511805 bytes, checksum: 0c33f669b2aced46c945651773a850c7 (MD5) Previous issue date: 2016-09-30 / O presente trabalho traz um levantamento dos estudos desenvolvidos no ?mbito do mestrado em m?sica junto ? Universidade Federal do Rio Grande do Norte ? UFRN, numa proposta que aborda a ?pera de c?mara Maroquinhas Fru-Fru, do compositor Ernest Mahle. Para tanto, ? tra?ado um panorama da ?pera brasileira e seu comportamento nos principais teatros l?ricos do pa?s no tri?nio 2014-2016, numa contextualiza??o que se apoia em autores como NEVES (1981), KATER (2001), HARTKOPF (2010), e as compila??es de VOLPE (2012), al?m de relacionar os dados colhidos da plataforma Operabase com os colhidos do censo 2010, do IBGE. A pesquisa bibliogr?fica inclui um brev?ssimo relato biogr?fico dos autores da obra (compositor e libretista), al?m de reflex?es acerca do libreto e da m?sica, abordando as bivocalidades do discurso na ?pera infantil e as ferramentas composicionais nela empregadas. Autores como SCHERCHEN (1933), RUDOLF (1993), BOWEN (2003) e outros v?m fundamentar as considera??es referentes ?s t?cnicas de reg?ncia e sua aplica??o ao g?nero oper?stico, bem como as especificidades que a obra em estudo imprime ao regente. Por fim, no intuito de dar vaz?o ?s pr?ticas musicais do nosso tempo, o que se revela como uma necessidade art?stica a ser impregnada na veia formadora dos novos m?sicos e dos novos p?blicos, tem-se o relato das fases preparat?rias da Cortina L?rica realizada em Campina Grande/PB, apontando para as implica??es da montagem desta obra no nordeste brasileiro e mostrando algumas das const?ncias e inconst?ncias de uma produ??o na atual conjuntura. / This study takes place a data collection from the research developed under the master degree in musical conducting at the Universidade Federal do Rio Grande do Norte - UFRN, a proposal that includes an approach of the camera opera Maroquinhas Fru-Fru, from the composer Ernest Mahle. For this, is delineated a panorama of Brazilian opera and your behavior in main opera houses of the country in the triennium 2014-2016, with the contextualization supported by authors like NEVES (1981), KATER (2001), HARTKOPF (2010), and VOLPE's compilation (2012), besides related the data collected from the Operabase plataform with the data of Brazilian cense 2010. The bibliographical research includes a very brief biographical account of the authors of the work (composer and librettist), besides reflections about the libretto and the music, addressing the discourse multivocality in the opera for children and the compositional tools used in it. Authors like SCHERCHEN (1933), RUDOLF (1993), BOWEN (2003) and others comes give support the statements about conducting techniques and their application in the operatic genre, as well as the specifics that the work requires of the conductor. Finally, in order to give vent to the musical practices of our time, which is revealed as an artistic need to be ingrained in the formation of new musicians and new audiences, we have an experience report of the preparatory stages of lyrical recital held in Campina Grande city, pointing to the implications of the assembly this work in northeastern Brazil and showing some of the constancies and inconstancy of a production in the current situation.

Energy is the main driving force behind all human activities. Energy use is blamed for its contribution to greenhouse gas, environmental degradation among others. Energy efficiency has been identified as an important tool to address these issues. Recognising the important role of energy efficiency, the Southern African Development Community (SADC) introduced policy measures to address energy efficiency at both regional and national levels. South Africa (a member state of SADC) followed by introducing policies, legislation, tax incentives and voluntary measures such as SANS standards and ISO 50001 to address energy use via energy efficiency. The aim of this study is to assess South Africa’s framework pertaining to energy efficiency and determine whether they correspond to the SADC energy frameworks. In this study, it is indicated that energy efficiency does not have a universally acceptable definition. SADC’s frameworks pertaining to energy efficiency are quite vague compared to South Africa’s policy framework. South Africa’s policies, legal frameworks and voluntary instruments correspond with the SADC frameworks and even go beyond these frameworks. It is recommended that SADC’s frameworks should specify measures of attaining energy efficiency within its mandated tools, urge member states to develop legislation as well as voluntary measures as means of attaining energy efficiency. The South African Minister of Energy on the other hand, should fulfil the mandate of the Electricity Regulation Act and the National Energy Act by enacting regulations pertaining to energy efficiency. Incentives for the introduction of voluntary energy efficiency measures should also be developed. / LLM (Environmental law and governance), North-West University, Potchefstroom Campus, 2015

Energy is the main driving force behind all human activities. Energy use is blamed for its contribution to greenhouse gas, environmental degradation among others. Energy efficiency has been identified as an important tool to address these issues. Recognising the important role of energy efficiency, the Southern African Development Community (SADC) introduced policy measures to address energy efficiency at both regional and national levels. South Africa (a member state of SADC) followed by introducing policies, legislation, tax incentives and voluntary measures such as SANS standards and ISO 50001 to address energy use via energy efficiency. The aim of this study is to assess South Africa’s framework pertaining to energy efficiency and determine whether they correspond to the SADC energy frameworks. In this study, it is indicated that energy efficiency does not have a universally acceptable definition. SADC’s frameworks pertaining to energy efficiency are quite vague compared to South Africa’s policy framework. South Africa’s policies, legal frameworks and voluntary instruments correspond with the SADC frameworks and even go beyond these frameworks. It is recommended that SADC’s frameworks should specify measures of attaining energy efficiency within its mandated tools, urge member states to develop legislation as well as voluntary measures as means of attaining energy efficiency. The South African Minister of Energy on the other hand, should fulfil the mandate of the Electricity Regulation Act and the National Energy Act by enacting regulations pertaining to energy efficiency. Incentives for the introduction of voluntary energy efficiency measures should also be developed. / LLM (Environmental law and governance), North-West University, Potchefstroom Campus, 2015

Hydrogen and oxygen or air polymer electrolyte membrane fuel cell is one of the most promising electrical energy conversion devices for a sustainable future due to its high efficiency and zero emission. Membrane electrode assembly (MEA), in which electrochemical reactions occur, is stated to be the heart of the fuel cell. The aim of this study was to develop methods for preparation of MEA with alternative polymer electrolyte membranes and compare their performances with the conventional Nafion&reg / membrane. The alternative membranes were sulphonated polyether-etherketone (SPEEK), composite, blend with sulphonated polyethersulphone (SPES), and polybenzimidazole (PBI). Several powder type MEA preparation techniques were employed by using Nafion&reg / membrane. These were GDL Spraying, Membrane Spraying, and Decal methods. GDL Spraying and Decal were determined as the most efficient and proper MEA preparation methods. These methods were tried to improve further by changing catalyst loading, introducing pore forming agents, and treating membrane and GDL. The highest performance, which was 0.53 W/cm2, for Nafion&reg / membrane was obtained at 70 0C cell temperature. In comparison, it was about 0.68 W/cm2 for a commercial MEA at the same temperature. MEA prepared with SPEEK membrane resulted in lower performance. Moreover, it was found that SPEEK membrane was not suitable for high temperature operation. It was stable up to 80 0C under the cell operating conditions. However, with the blend of 10 wt% SPES to SPEEK, the operating temperature was raised up to 90 0C without any membrane deformation. The highest power outputs were 0.29 W/cm2 (at 70 0C) and 0.27 W/cm2 (at 80 0C) for SPEEK and SPEEK-PES blend membrane based MEAs. The highest temperature, which was 150 0C, was attained with PBI based MEA during fuel cell tests.