Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-01-13T12:50:52Z No. of bitstreams: 1 CharlesPereiraChaves_DISSERT.pdf: 7082454 bytes, checksum: 4f66670ff6628ac2de7910aadac7f8c4 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-01-24T11:40:30Z (GMT) No. of bitstreams: 1 CharlesPereiraChaves_DISSERT.pdf: 7082454 bytes, checksum: 4f66670ff6628ac2de7910aadac7f8c4 (MD5) / Made available in DSpace on 2017-01-24T11:40:30Z (GMT). No. of bitstreams: 1 CharlesPereiraChaves_DISSERT.pdf: 7082454 bytes, checksum: 4f66670ff6628ac2de7910aadac7f8c4 (MD5) Previous issue date: 2016-03-21 / As ancoragens helicoidais s?o estruturas de funda??es bastante utilizadas em linhas de transmiss?o e torres de telefonia. Praticidade de execu??o e viabilidade econ?mica s?o alguns fatores que vem tornando o seu uso cada vez mais comum no mercado nacional. Por?m podem apresentar algumas limita??es de comprimento durante sua execu??o. Situa??es em que haja necessidade de execut?-las em solos com presen?a de matac?es em sua estrutura pode tornar invi?vel o seu uso, devido a limita??es de se atingir a profundidade necess?ria das h?lices buscando atender as condi??es de capacidade de carga. J? solos de baixa resist?ncia (argila mole e areia fofa) pode inviabilizar sua execu??o, devido a necessidade de se atingir grandes profundidades das ancoragens para atender as exig?ncias de capacidade de carga, tornando seu custo de execu??o bastante oneroso ao executor. Pensando nisso, foi desenvolvido um modelo f?sico de ancoragem helicoidal em escala reduzida (1:3) na condi??o rasa, buscando atender as limita??es de profundidade e de viabilidade econ?mica das situa??es citadas acima. Sabendo que estando o sistema de ancoragem rasa em condi??es insuficientes de atender a capacidade de carga, foi realizado um refor?o no sistema de funda??o atrav?s da instala??o de uma geogrelha buscando aumentar a sua capacidade de carga mesmo este estando em condi??es de profundidade rasa. Foram realizados ensaios de provas de carga de arrancamento do modelo f?sico avaliando a efici?ncia do refor?o atrav?s da compara??o de ensaios com e sem refor?o. Foi necess?rio o desenvolvimento de uma metodologia de compacta??o do solo parara esta pesquisa, buscando garantir efici?ncia na compacta??o e repetitividade, garantindo condi??es de compacidade semelhantes em todos os ensaios realizados. Foi poss?vel detectar o alcance da cunha de ruptura real do sistema de ancoragem atrav?s de um mapeamento das deflex?es superficiais do solo antes e depois do ensaio de prova de carga comparando com as cunhas de rupturas te?ricas esperadas. Observou-se atrav?s dos resultados de provas de carga, que n?o houve aumento significativo da rigidez do solo para o regime de pequenas deforma??es, percebendo a atua??o do refor?o somente a grandes deforma??es do sistema de ancoragem. / Soil reinforcement with helical piles is still a subject that has been under development over the past decades. In this research, a shallow condition helical anchor prototype is proposed. It was built in a sandy soil reinforced with a geogrid. A metal rigid box was used to construct the prototype. The main objective of this study is to evaluate the influence of geosynthetic reinforcement on the anchoring system. In this regard, an experimental loading test program was performed in two groups: unreinforced soil tests an geogrid-reinforced soil ones. Four tests were conducted with anchors installed in unreinforced sand in order to standardize a test methodology, which assures repeatability on the same geotechnical conditions, and to define the pullout resistance in such condition. Three tests were performed with helical anchors installed in geogrid-reinforced sand. In the first geogrid-reinforced test, a single geosynthetic layer was placed over the sand soil, immediately above the upper helix. The two last tests in reinforced condition were performed with the geogrid placed on the same position, but folder upright in order to increase the soil-geosynthetic interaction. It was not observed any significant difference in the beginning of the load-displacement curve between tests performed under unreinforced and reinforced conditions. On the other hand, anchors pullout resistance in geogrid-reinforced sand has notably increased at larger displacements. This aspect has minor importance since practical displacements were already reached. Tests performed under unreinforced condition were also used to determine the actual slope of the rupture surface of the prototype, by mapping the soil surface displacements before and after the tests. It was compared with suggestions found in the technical literature. The geogrid-reinforcement was effective to improve helical anchor behavior only under high displacement values, usually above the allowable displacement of the anchor.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-09T23:28:00Z No. of bitstreams: 1 LeonardoRuanDantasDeAguiar_DISSERT.pdf: 2449402 bytes, checksum: b04f8afa2c8b58e8060f6cec86cbf7ab (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-11T23:16:07Z (GMT) No. of bitstreams: 1 LeonardoRuanDantasDeAguiar_DISSERT.pdf: 2449402 bytes, checksum: b04f8afa2c8b58e8060f6cec86cbf7ab (MD5) / Made available in DSpace on 2016-03-11T23:16:07Z (GMT). No. of bitstreams: 1 LeonardoRuanDantasDeAguiar_DISSERT.pdf: 2449402 bytes, checksum: b04f8afa2c8b58e8060f6cec86cbf7ab (MD5) Previous issue date: 2015-04-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / As funda??es de apoio constituem um dos tipos de pessoas jur?dicas de direito privado forjadas com a finalidade de dar apoio a projetos de pesquisa, ensino e extens?o e de desenvolvimento institucional, cient?fico e tecnol?gico brasileiro. Observadas como elos das rela??es entre universidade, empresa e governo, as funda??es de apoio emergem no cen?rio brasileiro a partir do pleito de estabelecer uma plataforma de desenvolvimento econ?mico baseada no trip?: ci?ncia, tecnologia e inova??o - CT&I. Em termos aplicados, essas operam como ferramentas de desburocratiza??o, tornando a gest?o dos entes p?blicos mais ?gil, sobretudo ? gest?o acad?mica em conformidade a abordagem da Tr?plice H?lice. Em face do exposto o presente estudo tem como objetivo compreender como as rela??es da Tr?plice H?lice interv?m no processo de capta??o de recursos das funda??es de apoio brasileiras. Para compreens?o das rela??es postas, utilizou-se os modelos de intera??o Universidade-Empresa-Governo preconizadas por S?bato e Botana (1968), a abordagem da Tr?plice H?lice disposta por Etzkowitz e Leydesdorff (2000), assim como a perspectiva dos sistemas nacionais de inova??o, discutida por Freeman (1987, 1995), Nelson (1990, 1993), e Lundvall (1992). O objeto de pesquisa deste estudo consta das 26 funda??es estaduais de amparo ? pesquisa associadas ao Conselho Nacional das Funda??es Estaduais de Amparo ? Pesquisa ? CONFAP, assim como as 102 funda??es de apoio ?s IES associadas ao Conselho Nacional das Funda??es de Apoio ?s Institui??es de Ensino Superior e de Pesquisa Cient?fica e Tecnol?gica ? CONFIES, totalizando 128 entidades. Como estrat?gia de pesquisa, este estudo se caracteriza como uma pesquisa aplicada, de abordagem quantitativa. Os dados prim?rios desta pesquisa foram coletados com o uso do procedimento e-mail Survey. Foram coletadas 75 observa??es, que correspondem ? 58,59% do universo de pesquisa. Cabe ponderar o uso do m?todo bootstrap com vistas a validar o uso da amostra nas an?lises de resultados. Para a an?lise dos dados foram utilizadas t?cnicas de estat?stica descritiva e de an?lises multivariadas de dados: a an?lise de conglomerados; a correla??o can?nica e a regress?o log?stica bin?ria. A partir das ra?zes can?nicas obtidas, os resultados indicaram que a rela??o de depend?ncia entre as vari?veis de rela??es (com os atores da Tr?plice H?lice) e os recursos financeiros investidos em projetos de inova??o ? baixa, admitindo a hip?tese nula deste estudo, que as rela??es da Tr?plice H?lice n?o t?m interferido positivamente ou negativamente na capta??o de recursos para investimentos em projetos de inova??o. Por outro lado, os resultados obtidos com a an?lise de conglomerados apontam que as entidades que possuem maiores quantitativos e montantes financeiros de projetos constam em sua maioria de funda??es de grande porte (mais de 100 funcion?rios), que apoiam at? cinco IES, publicam relat?rios de gest?o e utilizam em sua estrutura de capital, maior financiamento do setor p?blico. Por fim, ? pertinente destacar que o poder de classifica??o do modelo log?stico obtido neste estudo demonstrou alta capacidade preditiva (80,0%) facultando ? comunidade acad?mica replica??es em ambientes de an?lise similares. / Foundations support constitute one of the types of legal entities of private law forged with the purpose of supporting research projects, education and extension and institutional, scientific and technological development of Brazil. Observed as links of the relationship between company, university, and government, foundations supporting emerge in the Brazilian scene from the principle to establish an economic platform of development based on three pillars: science, technology and innovation ? ST&I. In applied terms, these ones operate as tools of debureaucratisation making the management between public entities more agile, especially in the academic management in accordance with the approach of Triple Helix. From the exposed, the present study has as purpose understanding how the relation of Triple Helix intervenes in the fund-raising process of Brazilian foundations support. To understand the relations submitted, it was used the interaction models University-Company-Government recommended by S?bato and Botana (1968), the approach of the Triple Helix proposed by Etzkowitz and Leydesdorff (2000), as well as the perspective of the national innovation systems discussed by Freeman (1987, 1995), Nelson (1990, 1993) and Lundvall (1992). The research object of this study consists of 26 state foundations that support research associated with the National Council of the State Foundations of Supporting Research - CONFAP, as well as the 102 foundations in support of IES associated with the National Council of Foundations of Support for Institutions of Higher Education and Scientific and Technological Research ? CONFIES, totaling 128 entities. As a research strategy, this study is considered as an applied research with a quantitative approach. Primary research data were collected using the e-mail Survey procedure. Seventy-five observations were collected, which corresponds to 58.59% of the research universe. It is considering the use of the bootstrap method in order to validate the use of the sample in the analysis of results. For data analysis, it was used descriptive statistics and multivariate data analysis techniques: the cluster analysis; the canonical correlation and the binary logistic regression. From the obtained canonical roots, the results indicated that the dependency relationship between the variables of relations (with the actors of the Triple Helix) and the financial resources invested in innovation projects is low, assuming the null hypothesis of this study, that the relations of the Triple Helix do not have interfered positively or negatively in raising funds for investments in innovation projects. On the other hand, the results obtained with the cluster analysis indicate that entities which have greater quantitative and financial amounts of projects are mostly large foundations (over 100 employees), which support up to five IES, publish management reports and use in their capital structure, greater financing of the public department. Finally, it is pertinent to note that the power of the classification of the logistic model obtained in this study showed high predictive capacity (80.0%) providing to the academic community replication in environments of similar analysis.

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2019-03-18T14:45:44Z No. of bitstreams: 1 EDUARDO LUIZ RODRIGUES.pdf: 1294734 bytes, checksum: 49e1622a9454515a86959f4e9b3fc5e9 (MD5) / Made available in DSpace on 2019-03-18T14:45:44Z (GMT). No. of bitstreams: 1 EDUARDO LUIZ RODRIGUES.pdf: 1294734 bytes, checksum: 49e1622a9454515a86959f4e9b3fc5e9 (MD5) Previous issue date: 2018-12-03 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The ability to create alternatives to social problems in a sustainable way can be understood as Social Innovation. Social Innovation is a way of equalizing social problems, as it is considered an option for market failures, the State and society. Thus, Social Innovation presents itself as a possible and necessary alternative for the solution of the problems related to Sustainable Development, especially education. This research aims, from the perspective of the Innovation Capability, to study the capabilities of Social Innovation in Associations, Business Foundations and Social Business that work in the area of education in the Southeast of Brazil. In this study, the Social Innovation Capability is analyzed from five factors: Facilitating Leadership; Intention to Innovate Socially; Democratic Management; Co-creation of Social Innovation and; Open Social Innovation. Therefore, this study adopts the methodology of descriptive nature. For the data collection, online questionnaires were sent to a selection of organizations belonging to the three types of organizations studied (Associations, Business Foundations and Social Business) that work in the area of education in Southeast Brazil. The answers of the eight organizations, each with three respondents were analyzed from the literature. The research sample is made up of three Associations, two Business Foundations and three Social Business, which are active in the area of education in Southeastern Brazil. The results indicate that Associations, Business Foundations and Social Affairs agree on the importance of the factors Democratic Management and Open Social Innovation for Social Innovation. However, the Co-creation factor for Social Innovation presented low agreement for Social Innovation. In organizations with an economic purpose, the factors of Social Innovation Capability are more expressive when compared with organizations with social purpose. / A capacidade de criar alternativas para os problemas sociais de forma sustent?vel pode ser entendida como Inova??o Social. A Inova??o Social ? uma forma de equalizar problemas sociais, ao ser considerada uma op??o para falhas de mercado, do Estado e da sociedade. Assim, a Inova??o Social se apresenta como uma alternativa poss?vel e necess?ria para a solu??o dos problemas relacionados ao Desenvolvimento Sustent?vel, em especial a educa??o. Esta pesquisa busca, a partir da perspectiva da Capacidade de Inova??o, estudar as capacidades de Inova??o Social em Associa??es, Funda??es Empresariais e Neg?cios Sociais que atuam na ?rea da educa??o no Sudeste Brasileiro. Neste estudo, a Capacidade de Inova??o Social ? analisada a partir de cinco fatores: Lideran?a Facilitadora; Inten??o de Inovar Socialmente; Gest?o Democr?tica; Co-cria??o da Inova??o Social e; Inova??o Social Aberta. Para tanto, este estudo adota a metodologia de natureza descritiva. Para a coleta de dados foram enviados question?rios online a uma sele??o de organiza??es pertencentes aos tr?s tipos de organiza??es estudadas (Associa??es, Funda??es Empresariais e Neg?cios Sociais) que atuam na ?rea de educa??o no Sudeste Brasileiro. As respostas das oito organiza??es, cada uma com tr?s respondentes foram analisadas a partir da literatura. A amostra da pesquisa ? composta por tr?s Associa??es, duas Funda??es Empresariais e tr?s Neg?cios Sociais, atuantes na ?rea de educa??o no sudeste brasileiro. Os resultados indicam que as Associa??es, as funda??es e os Neg?cios Sociais concordam sobre a import?ncia dos fatores Gest?o Democr?tica e Inova??o Social Aberta para a Inova??o Social. No entanto, o fator Co-cria??o para Inova??o Social apresentou baixa concord?ncia para Inova??o Social. Nas organiza??es com finalidade econ?mica os fatores da Capacidade de Inova??o Social s?o mais expressivos quando comparados com as organiza??es com finalidade social.