Proteção de motores elétricos de grande porte

Large electric motors require greater care when driving, especially during continuous operation since they are part of day-to-day manufacturing sector, acting essentially to ensure that no damage occurs to the production process and equipment that are part of the same system. This work includes the analysis of electrical protection in a system comprised of a three phase induction motor driven by a frequency converter as well as an analysis of the functions of a multifunction electronic relay. It is presented a comparison between the existing functions in a converter and a relay and a real case is described in order to exemplify the use of an electric motor and features that are aimed at their protection, and the system in which it is inserted. Based on the results, it is of great importance in this field of performance studies, generating relevant results, which may be exposed in order to unify into a single document, different sources of information that are arranged randomly, improve utilization motor and extend the life of equipment forming part of the electrical installation

Grande reportagem impressa: construindo pontes

Este trabalho é uma proposta de grande reportagem para a revista Época em sua versão impressa. Diante da constatação segundo a qual a religião é assunto cada vez mais evidente na sociedade, o objetivo dessa produção é pautar um tema que é pouco difundido nos meios de comunicação de informação geral: o ecumenismo. A abordagem desse tema implicou desde a definição do conceito de ecumenismo, passando por uma breve trajetória histórica (limitações e progressos) até o relato da ação de organizações e pessoas que se envolvem concreta e cotidianamente com o ideal ecumênico. O processo de produção desse trabalho está descrito neste relatório e inclui as técnicas jornalísticas utilizadas, bem como a fundamentação teórica sobre jornalismo e sobre o tema

Artemídia escrevente: a caligrafia entre a arte e o design

The term “writing media art” expresses an artisticscientific process performed in the Art-Science Communication interface presented as Final Paper in Visual Arts baccalaureate modality. The first part gathers, in artistic-scientific research, a historical overview of the relation between image and writing, which its main focus is calligraphy and its different expressions in art and design, including their interrelations. The identification is made from bibliographical and iconographical survey, both printed and virtual materials. This approach involves the selection of authors’ statements and comments in order to offer a deeper historical basis, since it comes to facts and events. The second part relates to the set of works produced during the four-year period of the Visual Arts course, including a reflection about the creation process and all that surrounds it – influences, memories, visions etc. – to finally establish a connection between all these elements in order to make clear this incredible web of creation. This work is inserted in the line of research “Artistic Processes and Procedures” of the Department of Fine Arts of the Art Institute of UNESP and describes: creative process, production and influences. The methodology used was Freinetiana Educational Cybernetics, developed in the research group “Art media and Videoclip”, whose leading advisor is the one from this Final Paper. The result and discussion of the artistic-scientific research were reported in monography in the following versions: PDF File repository for dissemination in the virtual library of the Institute of Arts; hardcover version for physical collection in the Library of the Institute of Arts; paper version for the committee; template version appropriate for submission to International Scientific Congress in the area of Arts

Escherichia coli O157:H7 como importante patógeno veiculado em produtos cárneos de origem bovina

Escherichia coli O157:H7 is a foodborne pathogen associated with enteritis in humans, ranging from a mild to bloody diarrhea to hemolytic uremic syndrome, thrombotic thrombocytopenic purpura and even death. Large E. coli O157:H7 outbreaks have been reported worldwide and are frequently associated with consumption of undercooked beef. Cattle are a major reservoir of the pathogen, which is found in the intestinal tract of the animal. The carcasses can be contaminated with feces during the slaughter and production process. Ground beef remains the most common vehicle. The purpose of this study was to determine the E. coli O157:H7 importance associated to human illness and productivity losses to the meat industry, as well as identifying mechanisms of contamination related to beef and strategies to improve the safety of beef products

Quantificação de carbamato de etila em vinhos

The ethyl carbamate is a compound present in most foods yeast-distillates; due to its carcinogenic potential, national legislation has established a limit of 0.150 µg / mL for spirits, so the values above the same, pose a threat to both public health as well for the economic sector by preventing the export of these products. The aim of this work is to provide the optimization of an analytical method employing the technique of gas chromatography equipped with flame ionization detector (FID) to determine the concentration levels of ethyl carbamate in some samples of wine. The use of ethyl acetate as solvent employed in the extraction, the ethyl carbamate present in wine samples proved to be suitable, where Recoveries were between 97.6 to 103.3% (m / m), with a standard deviation for between 0.56 to 3.50%. The concentrations of ethyl carbamate in particular wine samples vary between 3.22 µg / ml and 3.80 µg / mL, with a mean of 3.48 µg / mL. These valuesare all above the limit set by law. Thus, the results indicate the need for changes in the process of wine production, in order to control the levels of the substance

Estudo da variação do limite de resistência à tração ao longo da bobina de vergalhão de alumínio 1350 AA

Therebar of aluminum 1350 AA produced by CBA are used inthe manufacture of wires and cables for electric power transmission, which marketshows increasingly favorableto aluminum due to itslow densityand high electrical conductivity, but to ensure that this materialmeets all specifications of projectsfor electricity transmission, it must have homogeneity in the chemicaland mechanicalproperties.One of the points of improvement in the process of rod production isreducing the high variation of the limitof tensile strengthalong the coils, therefore, this work seeks a better understanding of the factors that significantly influence the mechanical properties of rebar, specifically assessing the influence oftemperatureat the output of the coils, which can cause a recovery effect on the material andif thereare relevantdifferences between the two modes of rebar production: auto and manual.Samples of six coils have been specifically produced forthis study, which weresubsequently subjected to different annealing temperatures for one hour and ten minutes, similar to what occurs in the output of the coil from the machine. The tensile tests showed that aluminum 1350 AA is significantly influenced by temperature, whose behavior was very similar to that presented in the literature. It was found that the phenomenon of recovery occurred more significantly at high temperatures. Through the optical electron microscope Zeiss, 18 surface maps were made with 100x magnification for each sample in different conditions and the images were analyzed using entropy and fractal dimension, aiming to relate the condition of surface hardening on mechanical property of the samples in that condition. The results showed that these methods can be applied, provided they do not have any kind of imperfection on the surface, once they can influence the results. The study concluded that a more efficient cooling is required in ... (Complete abstract click electronic access below)

Influência do uso de malhas de sombreamento azul, vermelha e preta no desenvolvimento inicial do pepino Taiko

Cucumber (Cucumis sativus L.) is a plant of the Cucurbitaceae family of great commercial importance and their culture is widespread throughout the country. The production of vegetables, high-quality care begins with training ranging from seedlings and shading techniques have an important role in creating environments more conducive to the production of seedlings and many researchers and producers of seedlings have opted for the use of color shading screens, making this way, the wavelength and the amount of incident energy are changed in favor of the plants. Work will be performed at the Department of Forest Sciences, Faculty of Agricultural Sciences, Universidade Estadual Paulista (UNESP), Botucatu campus. The statistical design will be in three blocks, each containing 100 plots of each treatment (seedlings covered with blue screen, red and black). Evaluations of dry mass and height will be made at 7, 14, 21 and 28 days after emergence, and 5 will be selected seedlings of each treatment. At 14 and 28 DAE was measured, and SPAD chlorophyll content at 30 DAE, was evaluated by measuring gas exchange in the second pair of leaves, fully expanded for each plant, which was put in a chamber controlled with infrared gas analyzer (IRGA LI 6400, Licor) to perform measurements of photosynthesis. Treatment with black shading showed statistically better results for total dry matter, plant height, SPAD chlorophyll content and net assimilation of CO2, showing a better quality seedlings and its use is recommended in the cultivation of cucumber Taiko

O significado do trabalho com o texto dissertativo-argumentativo escrito em sala de aula

Pós-graduação em Educação - FFC

Formação-Arte-Escrita: contribuições estéticas para a noção de experiência

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Rio - Paris: primórdios da publicação da Literatura Brasileira chez Garnier

This article brings to light the latest research on the activities of Baptiste-Louis Garnier, French bookseller and publisher established in Rio de Janeiro, in his relations with the French publishing world: methods, procedures, books, authors and publishers. Cultural exchanges between these two systems helped to consolidate the canon of authors and works of Brazilian Literature in the nineteenth century. The study of these relationships can give full account of some information scholars have provided us and contributes to a better understanding of the process of production and circulation of literary works in Brazil.

Gritos do poder e ecos da resistência: a condicionalidade da educação nos processos de subjetivação do Plano Brasil Sem Miséria

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise do uso das águas de uma empresa do ramo petroquímico via análise de sobrevivência

Pós-graduação em Biometria - IBB

Analise das emissões de CO2 e de energia - simulação com novas tecnologias siderúrgicas

The process of steel production emits a large quantity of greenhouse gases, specifically carbon dioxide (CO2), and the reduction of such emissions is one of the main challenges for the industry in the 21st. Century. To quantify these emissions, the Worldsteel Association (association of the 170 large steel manufacturers of the world) published a methodology (CO2 Emission Data Collection) for calculation and comparison of CO2 emissions among its members. After that, in 2010, this methodology became an ISO (International Organization for Standardization) norm. Today, the calculation of the CO2 emissions in steel making companies follow the ISO 14404-1 for units with blast furnaces and the ISO 14404-2 for units with electric furnaces. In the last years, new technologies were and continue to be developed for the steel making sector aiming at energetic improvements and greenhouse gas reductions (mainly CO2) by the several processes involved in the production of steel. This work had the objective of producing a tool to calculate the CO2 emissions for the steel making sector. An Excel spreadsheet was developed to calculate the emission intensities of CO2 of a steel plant, the Usina Presidente Vargas, of the Companhia Siderúrgica Nacional (CSN). The spreadsheet furnishes results of CO2 emissions and energetic fluxes, and simulates the benefits that some of the new technologies can give to the company. The spreadsheet calculates the emissions in two ways: a) based on the carbon fluxes that enter the unit, and b) based on the emissions of each specific process within the unit (coking, sinterization, blast furnace, among others)

A leitura da literatura e os dias

Plato’s philosophy and the Aristotle’s poetics have settled the postulates for a theoretical thought on the production process and the reading of fiction. The specialization of the knowledge areas into disciplines has provided multiple readings for the literary. A tension among literary and social theories goes through the horizon of reading from the literary and immediate reality, and today presents itself as literature production and reading guiding possibilities.

In vitro study of color stability of polycrystalline and monocrystalline ceramic brackets

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)