991 resultados para 445


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Objetiva-se neste trabalho discutir a viabilidade da regulação subnacional do saneamento básico no País de acordo com o estabelecido na Lei no 11.445/2007. Foi analisada a viabilidade da regulação municipal em 2.523 municípios, com base na amostra do Sistema Nacional de Informações em Saneamento (SNIS) referente a 2005, mediante a aplicação de taxas de regulação de 1 a 3% do faturamento das concessionárias. Concluiu-se que a regulação local não apresenta viabilidade em 97% dos municípios pesquisados.

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Recent reports indicate that of the over 25,000 bridges in Iowa, slightly over 7,000 (29%) are either structurally deficient or functionally obsolete. While many of these bridges may be strengthened or rehabilitated, some simply need to be replaced. Before implementing one of these options, one should consider performing a diagnostic load test on the structure to more accurately assess its load carrying capacity. Frequently, diagnostic load tests reveal strength and serviceability characteristics that exceed the predicted codified parameters. Usually, codified parameters are very conservative in predicting lateral load distribution characteristics and the influence of other structural attributes. As a result, the predicted rating factors are typically conservative. In cases where theoretical calculations show a structural deficiency, it may be very beneficial to apply a "tool" that utilizes a more accurate theoretical model which incorporates field-test data. At a minimum, this approach results in more accurate load ratings and many times results in increased rating factors. Bridge Diagnostics, Inc. (BDI) developed hardware and software that are specially designed for performing bridge ratings based on data obtained from physical testing. To evaluate the BDI system, the research team performed diagnostic load tests on seven "typical" bridge structures: three steel-girder bridges with concrete decks, two concrete slab bridges, and two steel-girder bridges with timber decks. In addition, a steel-girder bridge with a concrete deck previously tested and modeled by BDI was investigated for model verification purposes. The tests were performed by attaching strain transducers on the bridges at critical locations to measure strains resulting from truck loading positioned at various locations on the bridge. The field test results were used to develop and validate analytical rating models. Based on the experimental and analytical results, it was determined that bridge tests could be conducted relatively easy, that accurate models could be generated with the BDI software, and that the load ratings, in general, were greater than the ratings, obtained using the codified LFD Method (according to AASHTO Standard Specifications for Highway Bridges).

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Contient : 1° « Le Chasteau perilleux, compilé et ordonné d'un moyne de l'ordre Chartreuse pour une nonnain de l'ordre de Frontevaulx » ; 2° « Le Livre appellé l'Orreloge de sapience, lequel fist Frere JEHAN DE SOUHAUBE, de l'ordre des Freres Prescheurs », traduction faile en 1389 par « JEHAN », religieux de l'ordre de St-François, de Neufchâtel en Lorraine ; 3° « Le Livre du Seul parler St AUGUSTIN, autrement Meditacions de veoir Dieu et congnoistre »

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Coarse grained, light brown sample with clasts ranging from small to medium in size. The clast shape ranges from sub-angular to sub-rounded. Lineations were abundant throughout the sample. A few comet structures were also found.

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Nachrichten aus Frankfurt, Stoltze: Veröffentlichungen, Radfahrer-Versammlung, Königstein: Kur, Georg Pingler, Stoltzeplätzi

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The sandstone succession in the lower 240 meters of DSDP Site 445, on the Daito Ridge, provided an opportunity to evaluate the effect of burial diagenesis of sandstones in a deep hole in a tectonic environment (remnant arc) characterized by a history of high heat flow. This report provides preliminary data concerning the petrology and diagenesis of these sandstones and records diagenetic changes which have occurred with increasing depth of burial. Methods used for this study included grain-size analysis (measured from thin sections using the method of Friedman, 1958), polarizing microscopy, X-ray diffraction, and scanning electron microscopy. A JEOL scanning electron microscope fitted with an energydispersive- X-ray detector was used for obtaining qualitative chemical data on certain minerals to aid in identification.

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Fil: Garay, Diego. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Fil: Garay, Diego. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.