In recent years, a number of researchers have applied various computational methods to study wind wave and tsunami forcing on bridge superstructure problems. Usually, these computational analyses rely upon application of computational fluid dynamic (CFD) codes. While CFD models may provide reasonable results, their disadvantage is that they tend to be computationally expensive. During this study, an alternative computational method was explored in which a previously-developed diffraction model was combined with a previously-developed trapped air model under worst-case wave loading conditions (i.e. when the water surface was at the same elevation as the bottom bridge chord elevation). The governing equations were solved using a finite difference algorithm in MATLAB for the case where the bridge was impacted by a single wave in two dimensions. Resultant inertial and drag water forces were computed by integrating water pressure contacting the bridge superstructure in the horizontal and vertical directions, while resultant trapped air forces (high-frequency oscillatory forces or sometimes called “slamming forces” in the literature) were computed by integrating air pressure along the bottom of the bridge deck in the vertical direction. The trapped air model was also used to compute the buoyancy force on the bridge due to trapped air. Results were compared with data from experiments that were conducted at the University of Florida in 2009. Results were in good agreement when a length-scale coefficient associated with the trapped air model was properly calibrated. The computational time associated with the model was only approximately one hour per bridge configuration, which would appear to be a significant improvement when compared with other computational technique

SILVA, Mirna Gurgel Carlos. A aprendizagem da escrita em textos narrativos de gêneros jornalísticos em sala de aula. 2011. 327f. Tese (Doutorado em Linguística) – Universidade Federal do Ceará, Departamento de Letras Vernáculas, Programa de Pós-graduação em Linguística, Fortaleza-CE, 2011. / Submitted by Liliane oliveira (morena.liliane@hotmail.com) on 2012-10-02T18:20:00Z No. of bitstreams: 1 2011_TESE_MGCSILVA.pdf: 3058296 bytes, checksum: 84092e8f3e904ae7de5acaf0c1a3b060 (MD5) / Approved for entry into archive by Maria Josineide Góis(josineide@ufc.br) on 2013-11-14T14:11:22Z (GMT) No. of bitstreams: 1 2011_TESE_MGCSILVA.pdf: 3058296 bytes, checksum: 84092e8f3e904ae7de5acaf0c1a3b060 (MD5) / Made available in DSpace on 2013-11-14T14:11:22Z (GMT). No. of bitstreams: 1 2011_TESE_MGCSILVA.pdf: 3058296 bytes, checksum: 84092e8f3e904ae7de5acaf0c1a3b060 (MD5) Previous issue date: 2011 / Com ênfase na narração e na organização textual, esta pesquisa implementou a sequência narrativa e a superestrutura textual do gênero notícia, como ferramenta de auxílio nas produções textuais de Língua Portuguesa dos alunos do 9º ano do Ensino Fundamental (EF) da Educação pública cearense. Assim, foram investigados as macroproposições da sequência narrativa, (Adam, 2008, 2009) e os elementos da superestrutura textual da notícia, (van Dijk, 2003[1983 e 1985]), em que são asseguradas a tematização dos sujeitos e a exposição dos acontecimentos, na notícia. A pesquisa foi desenvolvida em duas turmas do 9º ano do EF de uma escola estadual, em Fortaleza, no Ceará, as quais atuaram como grupo controle e grupo experimental, visando à coleta do corpus constituído por 102 textos. A produção da escrita do grupo controle seguiu o planejamento pedagógico da escola, com as pesquisadoras participando apenas na aplicação de dois textos narrativos do gênero notícia, sendo um no início (pré-teste) e outro, no final (pós-teste). Os dois testes e as datas de aplicação foram os mesmos nas duas turmas. No grupo experimental, entre o pré-teste e pós-teste, foi desenvolvida uma sequência didática, em 24 encontros presenciais, adaptando as macroproposições da sequência narrativa (apresentação, complicação/desenvolvimento, clímax e desfecho) e os elementos da superestrutura textual da notícia (fato/o quê, tempo/quando, lugar/onde, personagens/quem, causa/por quê, modo/como e as consequências), incluindo o Projeto Piloto do Jornal On-Line: “Descobrindo e Adotando Nosso Bairro”, concebido por esta pesquisa e a ser desenvolvido, a “posteriori”, pelos alunos, com a supervisão dos professores e dirigentes da escola. Os textos coletados foram analisados quantitativa e qualitativamente, possibilitando atestar que as macroproposições da sequência narrativa, em consonância com os elementos da superestrutura textual da notícia, contribuíram para que os alunos do grupo experimental apresentassem melhores produções textuais narrativas, considerando o Pré-teste para o Pós-teste. Na sequência narrativa, o alunado do experimental demonstrou melhorias na materialização das macroproposições, ficando em 139%, em apresentação e complicação/desenvolvimento; 132% em clímax e de 111%, em desfecho. Na superestrutura textual, este alunado registrou uma melhoria ainda mais expressiva na utilização dos elementos, atingindo 172%, do lugar; 164%, do fato; 161%, da causa e das consequências; 158%, do modo; 116%, do tempo e 75%, do elemento personagens. Tais indicadores ratificam a eficiência pretendida por esta pesquisa, sendo viável a sua implantação de forma mais expansiva nas classes do 9º ano do Ensino Fundamental da rede pública cearense. Deve-se atentar, ainda, ao fato de que a apropriação das macroproposições da sequência narrativa e dos elementos da superestrutura textual da notícia, imprescindíveis a uma produção narrativa proficiente, têm de integrar as atividades didáticas normais, ultrapassando as regras de formatação do novo blog da escola

Made available in DSpace on 2016-08-17T18:10:02Z (GMT). No. of bitstreams: 1 DISSERTACAO_PETER LOEB CALDENHOF.pdf: 2483377 bytes, checksum: 2e812ba2f3baa4d90a5f0ad156244509 (MD5) Previous issue date: 2015-03-26 / This dissertation studies the relations between the socioeconomic base and the political-juridical superstructure, with the demonstration that they form a dialectic totality, but keeping the relative autonomy of its parts. The text shows the specific nature of Law as an important part of the superstructure and its role in the definition of national development models within the process of mundialization. The relative autonomy of Law is demonstrated in theoretical and historical-concrete terms, first, by showing that there is no automatic determination of Law by the socioeconomic structure and, second, with the evidence of the political and juridical constitution of the material base itself. These elements of the relative autonomy are explained by the political and juridical characteristics of the state, Law, the international system and the mundialization process as something that is deliberately produced by the different actors in conflict within the domestic and international superstructures. Parting from this point of view of critical institutionalism, the relations between Law and Economics are demonstrated and analyzed in the case study of the current juridical-institutional organization of the shipping industry in Brazil and its effects in terms of development for the shipping branch and the economy as a whole. The dissertation shows that the current model is insufficient for the consolidation of an autonomous national shipping industry, with the consequent negative impacts on the systemic competitiveness of the Brazilian economy, its national accounts, the national accumulation of capital and the development of correlated economic sectors, such as the shipbuilding industry. / A presente dissertação aprofunda o estudo das relações entre base material socioeconômica e superestrutura político-jurídica, com a demonstração de que formam uma totalidade dialética, mas com relativa autonomia de suas partes. Esclarece a natureza específica do direito como importante elemento superestrutural e seu papel para a definição de modelos de desenvolvimento nacionais no atual contexto da mundialização, demonstrando, em termos teórico-conceituais e histórico-concretos, sua relativa autonomia, tanto pelo aspecto de sua não determinação automática pelas relações socioeconômicas, quanto pela constituição política e jurídica da própria base material. Estes elementos de relativa autonomia são explicados pelas características político-jurídicas do Estado, do direito, do sistema internacional e da própria mundialização enquanto processo deliberadamente produzido pelos atores em luta nas esferas superestruturais doméstica e internacional. Sob essa ótica de institucionalismo crítico, as relações entre direito e economia são demonstradas e analisadas no estudo do caso concreto da organização jurídico-institucional da navegação marítima brasileira atual e seus efeitos em termos de desenvolvimento setorial e geral. O trabalho demonstra que o atual modelo é insuficiente para a consolidação de uma navegação marítima nacional autônoma, afetando negativamente a competitividade sistêmica da economia brasileira, suas contas nacionais, a acumulação de capital nacional e o desenvolvimento de setores conexos, como a construção naval.

The indiscriminate emission of CO2 is drastically aggravating climate change. Carbon Capture and Utilization (CCU) was born as a complementary solution to this issue. This thesis studies the consumption of carbon dioxide in industrial processes, starting from synthesis gas, and using this building block in subsequent syntheses; ultimately integrating CO2 utilization with previously non-CO2 consuming processes.

The subject of the master’s thesis is to design a reconstruction of the Letovice railway station for access for persons with reduced mobility and orientation. The thesis deals with adjustment to the railway superstructure, substructure and drainage system of the station. Part of the thesis is explore the possibility of building a new railway stop.

The theme of this diploma thesis deals with comparing technologies of reconstruction of the railway track No. 2 between railway stations Hranice na Morave and Hustopece nad Becvou in km 7,792 393 – 7,967 592 and in km 8,725 000 – 14,988 677. The aim of the thesis is to design several variants for the reconstruction of the substructure and superstructure, and then compare these variants. This thesis deals with technologies with removal of the track length and with technologies without removal of the track length. Part of the thesis is a description of used technologies and machines connected with them.

The task of the thesis is to propose the third track in track section Blansko - Rájec-Jestřebí and increasing line speed with maximum use of existing track body and grounds of SŽDC, s.o. Next is the design of the reconstruction of all engineering objects (bridges, runoffs, railway crossings and platforms). Additioning of the third track will cause extensive structural modifications at railway stations Blansko and Rájec-Jestřebí. Within the building will be verified construction of new railway stop Spešov.

The diploma thesis compiles working method of construction works at Pačejov railway station and in adjacent double-track section in the range of working procedures from SP0 to SP3a. The thesis compares the time and economical aspects of individual technologies and entire construction methods. The thesis includes description of rail and non-rail mechanization.

The aim of this diploma thesis is to design a new track route of high speed line from Brno to Znojmo, specifically between the planned terminal of high speed line Unkovice and existing railway station Hrušovany nad Jevišovkou. The track is designed for a maximum speed of 250 km/h. The alignment and profile of the line were designed, including the design of the railway superstructure and track geometry parameters.

This diploma thesis deals with the phases measuring deformation of the bridge construction and railway superstructure on the bridge over the river Dyje in Breclav and its surroundings. The main goal was to determine the longitudinal displacements of the rail web and the bridge structure. The object of this thesis was also transverse displacements which have been caused mainly due to temperature changes. The introduction describes the location. The following section discusses the methodology terrestrial deformation measurements and calibrations selected surveying devices. Furthermore, there is stated the processing of measurements and the calculations. In conclusion, the thesis evaluates the longitudinal and transverse displacements, which are shown in the annexes.