934 resultados para Horizon d’attente
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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The pipelines are characterized by the great length and linearity, these enterprises are usually associated with the horizon of soil and decomposed rock and accidents in this system usually have high complexity. So this work proposes a study of geological and geotechnical characterization of approximately 40 km ² and a study of risk analysis along 18.3 km of gas pipeline GASBOL, in the municipalities of Ipeúna-SP and Itirapina-SP, in scale 1:25.000, besides correlation between studies. The method for geological and geotechnical characterization is based on physiographic integrated analysis technique, which is supported by literature research, observation and interpretation of satellite imagery (photointerpretation), correlation of products numerical model of ground, fieldwork. The method adopted for risk classification is based on preliminary analysis of hazards (APP) technique, which is identified the geological process, this feature is classified as the susceptibility of occurrence, and then classified as the possible consequence of the process, if this evolves. As a product of the research, we designed a map in 1:25,000 scale, containing a table of geological and geotechnical characteristics of the mapped drives, as well as sectorization risk in each section of the pipeline. Were mapped geological and geotechnical seven units in the study area, delimited in excerpts of which five are classified as high risk, totaling 1.1 km in length of 18.3 km total
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The landfill biogas can be an alternative energetic resource as a fuel to electrical energy generators, although, there are not too many techniques to prospect the gas. Usually, landfills receive home waste, which in most are constituted by organic matter whose degradation by anaerobic activity produces the biogas. Geophysics is an important tool in environmental studies and the electrorresistivity, an important method employed in contaminated areas by slurry or necroslurry, including a monitoring for each contaminator flow. The electrorresistivity has not too much application in finding biogas. For this work, two biogas drains in Rio Claro-SP landfill were selected: one whose waste disposition correspond to the initial activities in the landfill and another drain whose disposition started more recently. The result consists in a higher biogas production if compared to the biogas from the older drain. The present paper consists in a monitoring along one year, with dates collection in each fifteen days. These dates were tabled in Excel 2010 program and graphics of resistivity x depth were generated. Hereafter, most variable resistivity values depth were chosen, to further graphics pluviosity x resistivity generation in Grapher 8 program and the biogas output (m³/h) in monitoring period. The use of pluviosity parameter can be justified by its influence above resistivity. The results show that there is a horizon with possibly biogas accumulation. Lastly, the method was effective, although, for any application of geophysical methods, the knowledge about its limitations is necessary; in this case the influence of pluviosity and also that the measurements were made in one single point, it will not show any side variation
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This study aims to identify the horizon of emancipation in Human Rights Education, using the philosophy of praxis as a theoretical framework, basing on authors as Tonet, Losurdo, Marx, and Saviani and Duarte, taking as a privileged locus analysis of the Plan National Human Rights Education (PNEDH, 2007). The discussion about the historical development of the movement of the struggles for human rights was a starting point to indicate how, in general, these struggles have been developing since the context of bourgeois revolutions. From there we tried to discuss how the prospect of citizenship has been treated within the Rights Education, the latter being a reflection of social movements' struggles for rights from the year 1980. Situating this movement within a larger movement on the issue of education in Brazil in the twentieth century, we tried to discuss the flags such as citizenship, the strengthening of civil society and creating a culture of rights as a goal of emancipation. Seeking to differentiate between citizenship as political emancipation and human emancipation, was placed the imperative to take the citizenship as a mediator and not as an endpoint in order to equip a culture of struggle for a classless society without exploitation of man by man
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This present paper aims to identify the main response techniques for coastal and fluvial environments and analyze impacts on the application of these techniques. The literature review allowed us to understand since the establishment of first environmental sensitivity index map, in coastal and fluvial environment, until the possible impacts generated by the application of cleanup techniques in both environments. Studies related to freshwater environment are less common compared to coastal environment. For both environments the same techniques may be employed, as well as containment and recovery, or removal of oil in the affected areas. The most serious environmental impacts generated are due to the poor choice of technique to be applied or the lack of training of the cleaning crews. In Deepwater Horizon accident, Gulf of Mexico, 2010, application of dispersants, resulted in a mixture of oil and dispersing 52 times more toxic than the oil itself. In Brazil, the technique of vegetation removal by the cleaning staff in the accident on the river Guaecá, 2004, resulted in unnecessary elimination of vegetation, increasing the volume of waste. It was concluded that the freshwater environment often suffer more impacts by applying the techniques, once is necessary to access the banks, which normally have more vegetation and organisms than shoreline of coastal environment
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It is intended, by using the theoretical frameworks of Cultural Anthropology and Social Sciences, determine how to process social relations as a result of identity processes in the university environment. The study shows relevance in the field of Anthropology and Public Relations as it undertakes to identify issues that may guide the actions and perceptions of society and the professionals themselves regarding the activity, in addition to showing a socio-historical overview of the profession. Thus, it can contribute both in the scientific realm , revealing the identity of Public Relations through anthropological knowledge, as in the social sphere, providing the public relations have a broader horizon in relation to their activity and their recognition in the social context , allowing develop identity strategies and contributing to the profession will become even more important for individuals and organizations that make up society
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Geological-geotechnical problems affecting escarps as well as embankment and fill slopes of roads and motorways may generate different types of unsteadiness, which are mainly arisen from the deficient knowledge about the physical environment. This results in unsuitable engineering projects and inadequate executions, which can be worsened by an occasional inappropriate maintenance of the construction. A geologically-geotechnically characterization of escarps and slopes is crucial in order to prevent these problems. This work deals with a geological-geotechnical study of 1:10.000 scale mapping in a stretch of a local road (CHQ-40) at the Serra de Itaqueri, Charqueada town, State of São Paulo. The stretch is known by several physical problems as erosion and mass movement. The methods of study were based on an integrative analysis of the diverse elements of the physical environment by using aerial photographs - to obtain the physiographic compartmentalization of terrain units - as well as field work - to accomplish the evaluation of the units by employing sketch lists. To achieve this, we selected several techniques in order to identify and classify different types of existing problems as erosion, landslide in embankments and fill slopes, rockfall, block rolling, among others. We also included the analysis of soil horizon, thickness and composition. The geological-geotechnical mapping resulted in six units: 1- Sandstones in cuesta’s backhill; 2 – Basalts in cuesta’s front; 3- Sandstones in cuesta’s front; 4 – Talus and colluvial deposits at cuesta’s foothill; 5- Sandstones of the Piramboia Formation in hillside; and 6 – Colluvial soil in the hill top. A characterization of the geological-geotechnical units is detailed, coupled to the cartographic material. Other cartographic products elaborated for this study included 1:10.000 maps of hypsometry, slope and curvature
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In recent years speleothem has been intensely studied due to its great potential of registering paleoclimate proxies but some considerably uncertaintiesregarding speleothem proxy interpretation still exist. In order to minimize these uncertainties, multi-proxy approach has been used. Here is presented the strontium isotope record from Bunker cave, northwest Germany. This cave was previously studied and has proved well record paleoclimate changes during Holocene for central Europe.87Sr/86Sr ratio is presented for rain water, A-horizon soil (water and leachate), C-horizon soil (water and leachate), host rock and host rock leachate, drip water and from a stalagmite (Bu4) previously dated covering the Holocene. Upper soil presented the higher values in contrast with host rock (lower values). Drip water and C-horizon presented intermediated ratios. Sr isotopesare used to track the source of 87Sr/86Sr in the Bunker system, resulting in a mixture between A-horizon soil, C-horizon soil and host rock. A decreasing trend in Bu4 indicates change in the Sr source in the system
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This text aims to present the challenges and opportunities of omnilateral formation in Latin America as elaborated in Villela (2009-2010). This work has the horizon systematize the educational practices of the “Third World “, i.e. originating from the educational experience of Latin America, Africa and Asia. In the struggle for emancipation, these countries have built and are building unique educational practices. In this sense, we start questioning the historical and theoretical topic, omnilateral formation, and deployment, we discuss the Latin American school and omnilateral formation. We question specifically issues relating to intellectual and educational organization working in the “field schools” in Cuba (1960-1975). The issue of “intellectual and organizational culture”, in a Gramscian perspective (Gramsci, 2000), was addressed in several papers throughout our academic career (Villela, 2003, 2008, 2009-2010). In order to further these issues, we address the challenges of formation for children and rural youth in Latin America. By analyzing the educational practices in the education field, emerges the theme of contemporary global justice.
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This text aims to present the challenges and opportunities of omnilateral formation as elaborated in Villela (2009-2010). This work has the horizon systematize the educational practices originating from the educational experience of Brasil and Cuba. In the struggle for emancipation, these countries have built and are building unique educational practices. In this sense, we start questioning the historical and theoretical topic, omnilateral formation, and deployment, we discuss school and omnilateral formation. We question specifically issues relating to intellectual and educational organization working in the field schools in Cuba (1960-1975). The issue of intellectual and organizational culture, in a Gramscian perspective (Gramsci, 2000), was addressed in several papers throughout our academic career (Villela, 2003, 2008, 2009). In order to further these issues, we address the challenges of formation for children and rural youth in Latin America. By analyzing the educational practices in the education field, emerges the theme of contemporary global justice.
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This text aims to present the challenges and opportunities of omnilateral formation in Latin America as elaborated in Villela (2009-2010). This work has the horizon systematize the educational practices of the "Third World ", i.e. originating from the educational experience of Latin America, Africa and Asia. In the struggle for emancipation, these countries have built and are building unique educational practices. In this sense, we start questioning the historical and theoretical topic, omnilateral formation, and deployment, we discuss the Latin American school and omnilateral formation. We question specifically issues relating to “intellectuals and the organization of culture” in "schools in the countryside" in Cuba (1960- 1975). The issue of "intellectuals and the organization of culture", in a gramscian perspective (GRAMSCI, 2000), was addressed in several works throughout our academic career (VILLELA, 2003; 2008; 2009-2010). In order to further these issues, we address the challenges of formation for children and youth of the field in Latin America. By analyzing the educational practices in the schools in the countryside, emerges the theme of contemporary global justice.
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An optimal control framework to support the management and control of resources in a wide range of problems arising in agriculture is discussed. Lessons extracted from past research on the weed control problem and a survey of a vast body of pertinent literature led to the specification of key requirements to be met by a suitable optimization framework. The proposed layered control structure—including planning, coordination, and execution layers—relies on a set of nested optimization processes of which an “infinite horizon” Model Predictive Control scheme plays a key role in planning and coordination. Some challenges and recent results on the Pontryagin Maximum Principle for infinite horizon optimal control are also discussed.
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Pós-graduação em Engenharia Elétrica - FEIS