A internacionalização do setor siderúrgico via fusões e aquisições: um estudo sobre a competitividade do setor no Brasil

A siderurgia é um importante elo na cadeia siderúrgica, unindo tanto setores que estão atrás dela, mineração e carvão, como os que seguem a sua frente, setores da construção civil, máquinas e ferramentas, automobilístico e até mesmo setores de maior intensidade tecnológica como o da aeronáutica. Esta monografia tem por objetivo estudar a internacionalização que o setor siderúrgico brasileiro sofreu durante a última década analisando tanto os fluxos de fusões e aquisições de empresas brasileiras as quais compram ativos no exterior como também de indústrias siderúrgicas estrangeiras que adquirem ativos produtivos no Brasil. Deseja-se estabelecer se as Fusões e Aquisições foram capazes de trazer maior competitividade para as empresas nacionais e avaliar o impacto que a indústria brasileira sofre com a entrada de siderúrgicas estrangeiras. Para tanto, foram feitas análises qualitativas buscando analisar quais as estratégias de internacionalização das empresas e relacionar as fusões e aquisições feitas de acordo com as estratégias traçadas. Em termos quantitativos tentou-se verificar por meio do market-share mensurado em termos mundiais de venda se as operações realizadas pelas empresas foram capazes de elevá-las a patamares competitivos superiores

Vilas ferroviárias em Bauru: a essência de uma cidade

A pesquisa propõe-se a listar, relacionar e analisar a partir de documentos, manuscritos e relatos orais, de que forma se constituíram os meios e modos de habitação das vilas ferroviárias em Bauru até meados do século XX. Como a ferrovia trouxe consigo uma infra-estrutura necessária ao seu funcionamento, busca-se estabelecer as relações entre a chegada da ferrovia e a cidade de Bauru, e de que forma essa estrutura interferiu na lógica urbanizadora. Assim, pretende-se resgatar a memória da cidade de Bauru relacionando-a a chegada da ferrovia, através do período que compreende os primeiros cinqüenta anos do século vinte abrangendo a chegada dos três ramais ferroviários que serviram à cidade, sua ascensão (fase na qual encontram-se a maioria dos edifícios estudados) e o seu declínio. Para ser implantada em uma cidade, a ferrovia precisava ter uma infra-estrutura básica, necessária ao seu funcionamento, como os armazéns, as estações, as oficinas, os pátios, inclusive as moradias construídas para os funcionários. Esse conjunto é denominado “complexo ferroviário”. Durante o presente trabalho, tem por objetivo aprofundar-se nos estudos das residências construídas pelas companhias ferroviárias. Segundo Eva Blay, vila é o conjunto de casas construídas no interior de um terreno. Mas será que todas as vilas construídas pela mesma Companhia ferroviária possuem o mesmo padrão arquitetônico? Ou o mesmo padrão de loteamento? Como era a arquitetura das casas nas vilas? Através de pesquisas, procuramos responder a esses e outros questionamentos. Como estão hoje as vilas? Quem são seus moradores?Aconteceram alterações na arquitetura das vilas?

Avaliação dos gases de efeito estufa a partir do carvão

This paper addresses the context of emissions of Greenhouse Gases (GHG) from activities related to Coal, called fugitive emissions. The survey of factors, development, analysis, and suggestions for controlling emissions are conducted in order to reduce risks to the environment and people around it. The greenhouse gases absorb radiation, emitted by the Earth’s surface, and hinder their escape into space. This process is essential to terrestrial life. Increasing the concentration of those gases in the atmosphere has led to an increase in the terrestrial temperature. A selection of processes that emit gases and the study and development of calculations for measuring fugitive emissions applied in different sources from coal are performed. The greenhouse gases can be released from the extraction, processing, storage, and transportation of fossil fuels to the end consumer. Coal has 4 main fugitive factors: mining, post-mining, oxidation at low temperature, and uncontrolled combustion. The coal formation process produces methane (CH4) and carbon dioxide (CO2), being the methane, the main greenhouse gas from the coal mining and handling. The types of activities and the weight of each in the issuing process are observed. It is also made comparisons between the countries with the highest emissions rates. Are evaluated what has been done and what is needed to decrease emissions, for example the use of gas as an alternative fuel for energy generation

Estudo geofísico em um depósito de manganês supergênico no município de Itapira - SP

The mining research is a complex activity, which should preferably involve the combination of direct and indirect techniques of geological research. The increasing demand for base metals in domestic and international markets provide the revaluation of mineral occurrences, which can be converted into deposits and mines. This paper presents the results of the application of geophysical methods of electric resistivity and induced polarization in main foliation parallel to the arrangement of the area, in a deposit of oxides and hydroxides in massive and disseminated ores, docked in gneisses and quartzites, located in the municipality of Itapira, in the North of the State of São Paulo in Brazil. Inversion models indicate the predominance of high cargabilidade that partially coincide with low resistivity values. Integration of geophysical data made possible the drafting of sections of electric walking with cross-checking distance x depth, for detailing your target. The integrated analysis of geophysical and geological structural data leads to the conclusion that the primary mining suffers structural control with the regional foliation in ores

Caracterização petrográfica e geoquímica das rochas encaixantes da mineralização de ouro do alvo lavra velha - Ibitiara (BA)

The Lavra Velha gold prospect is located in Ibitiara city, in the Espinhaço Setentrional physiographic domain, on the west edge of Chapada Diamantina – central part of Bahia. It is inserting on Gavião Block, a compartment of São Francisco Cráton (Almeida, 1977). The Lavra Velha gold dump is formed by an association of hydrothermal breccia lodged in acid and intermediate rocks, classifying in tonalite, granodiorite and diorite, with high alteration, cut off by a vein and venules system constituted by hydrothermal association composed by hematite, tourmaline, quarz and sericite, located in the north limit of Ibitiara granite. In the regional geological context the area is represented by Archaean rocks (Paramirim Complex) and Paleoproterozoic rocks (Ibitiara granitoid and Matinos Granite) constituted the basement, following by paleo to mesozoic pluton-vulcanic-sedimentary association of Rio dos Remédios Group, intruded by mafic rocks. It was used geochemistry and petrographic analysis compiling to field works data to characterize the rocks where the gold mineralization is inserting. Previously these rocks were classifying in volcanic rocks of Novo Horizonte Formation. Developing this monograph’s work the petrogenetic characteristics suggesting that these rocks called volcanic actually belong to Ibitiara granitoid as a portion more metamorphosed. The green schist is the predominant metamorphism in the area with low deformation, associated to high concentration of fluid circulating. The hydrothermal alteration is the process responsible for rocks modifications and strong sericitization generalize

Caracterização geológica e estrutural da porção centro-norte do greenstone belt de Faina, Faina-GO

The area where the study was conducted is located in the central-western state of Goias. It geologically inserts the northern portion of the Greenstone Belt of Faina which belongs to the Archean terranes that fits in Brasília Fold Belt and Tocantins Structural Province. This region is known for its greenstone lode gold potential and it was heavily exploited by pioneers and prospectors, leaving many records for where they have been through. Preliminary work done by Orinoco Brasil Mineração in their required areas at the region showed that the environment is promising for gold mineralization and that the ore is controlled by structures. Therefore the objectives of this work were the geological and structural mapping in semi detail scale to improve geological, stratigraphic and structural controls present attributing possible ore understanding. With the development of the work there were recognized on the desktop three structural domains separated by a thrust fault. For each domain were discriminated the geological units ranging in gneisses, quartzites formed from coarse sediments arcoseanos, and schists. By mapping structures there were found five deformation phases, Dn-2, Dn-1, the Dn event that generated the main foliation (Sn) in high representation and two post-stages Dn with brittle late manifestations. The detail mapping of the Rattlesnake Gallery showed that the mineralized quartz vein is consistent with axial-plane foliation Sn-2 belonging to the oldest deformation Dn-2 phase and that the high grade is distributed in the hinge region folds of the same phase

Transportador de correia: componentes e cálculos básicos para seu dimensionamento

Increasingly, people searches for an efficient and economic way for transporting bulk materials. Transport through belts is now the most widely used mean for transporting bulk materials, used by companies from various sectors such as mining, quarrying, agribusiness, etc. There are many advantages of using a conveyor belt as compared to rail or by truck. Trucks needs a driver, have a high risk of accidents as well as a high cost for maintenance and as well as trains, after making the downloading of the material, return empty to the next load. The cost for the construction of a railway is very high, making it often impossible. The conveyor belt have a high cost of installation, but it works 24 hours a day, 365 days a year. The upper side of the belt is always loaded, the maintenance cost is average and the risk of accidents is low, causing it to be the ideal way to transport bulk materials. This monography aims to interest the reader about what is a conveyor belt, what are its main components and demonstrate the basic calculations for their sizing and selection of components. Throughout the work, scaled a belt conveyor for use in the mining sector, but the concepts demonstrated apply to the transport of any material

Fácies e associação de fácies da formação Pirambóia na região de Descalvado/SP

The Pirambóia Formation is a lithostratigraphic unit of the Paraná Basin, positioned between the Corumbataí (lower) and Botucatu (upper) Formations on the eastern edge of the basin. This unit is focused by many studies due to its great importance as an essential component in the Guarani Aquifer System (SAG) and the petroleum system “Irati-Pirambóia”, as excellent reservoirs. The Pirambóia Formation is historically the subject of several controversies on issues like age, contact relationships with the upper unit and depositional paleoenvironment. Despite these aspects, the Pirambóia Formation is commonly taken to be of Triassic age and is considered a product of wet aeolian systems, with plenty of wet interdunes and subordinate fluvial facies. In this work, by using techniques such as facies analysis, depositional architecture and facies association, facies of this unit were characterized and their depositional paleoenvironment was inferred particularly in Jundu Mining, region of Descalvado in northeastern São Paulo. Techniques such as grain size and petrographic analyses, aimed to characterize this unit as a potential reservoir rock. Five facies were described for the Pirambóia Formation in the studied region: St, Sh, Sm, Sr and Gt facies, generated by sedimentary processes of the bottom load type, mostly under low flow regime (with exception for the Sh facies, which is formed by upper flow regime processes). In addition to that, four facies associations were recognized from the architectural elements, primarily contained within the main channel: complex channel bars, composed by foreset macroforms (FM), sandy bedforms (SB) and gravel bars and bedforms (GB); flood deposits, constituted by laminated sand sheets (LS); deposits of hyperconcentrated flows and eolian deposits. It was interpreted that the Pirambóia Formation in Descalvado (SP) is the record of the sedimentation of braided rivers, with dunes and interdunes deposits...

Projetos de extensão em dança da UNESP/Rio Claro: contribuições à formação profissional dos estudantes de Educação Física

The Projects of Extension in dance of the State University of São Paulo- Campus Rio Claro in 1994 and 1995 with the Dance Companies: Éxciton and Contratempo respectively. From this moment, the dance has always been present on the campus of Rio Claro, is participating actively in group or even as spectators of the many presentations. This research aims to understand and analyze the influence at the participants professional formation of the two companies, already graduated and working since the Dance Companies from the beginning until today. For the development of this study will be conducted qualitative research involving literature and area of study research. The technique used for the collection is a questionnaire with open and closed questions. The research subjects students trained by Physical Education Department of the State University of São Paulo - Campus Rio Claro, active in this area of academic formation, with one participant from each Dance Company in each year of existence. Data analysis will be based on the technique of content analysis proposed by Bardin (2010). The results found that the extension projects contribute to the professional acting, because they enable exchange of experience, acquisition and incorporation of new knowledge, different from previously built on a broad vision of dance. This new framework allows the development of education/ teaching/ methodology, enabling the contact since graduating with professional practice and obtaining safety and confidence to act in the labor maker

Análise da viabilidade de motorização elétrica do soprador no ciclo regenerativo da unidade de craqueamento catalítico fluidizado em uma refinaria

One of the biggest environmental problems of today is the climate change. Experts affirm that this global warming is related to the greenhouse effect. Its causes are directly related to human activity, especially the use of fossil fuels. In this context, companies around the world are challenged to improve energy efficiency in order to reduce the environmental impact and work toward the so-called tripod of sustainable development that focuses on the social, economic and environmental aspects of a business strategy. The first step a company can make in this regard is to conduct an inventory of emissions of greenhouse gases (GHGs). The reduction of GHG emissions in a refinery can be achieved by replacing steam turbines with electric motors to drive big machines, this reduction is achieved by relieving the steam consumption for electric power available or purchased. An important aspect associated with the reduction of GHG emissions is the best performance of the Energy Intensity Index (ERI). The objective of this study was to analyze the feasibility of the blower motorization in the regenerative cycle of a fluidized catalytic cracking unit at a specific refinery. For development work, two methods were used, the initial screening and optimization scenarios with the help of software Butyl. The results indicate that after a certain cost of natural gas this substitution becomes favorable. In addition, there is a large reduction of CO2 emissions avoided by burning fuel

Extensão da plataforma de visualização INFOVIS incorporando recursos de interatividade

People store data of the most different daily events, to know yourself, detect behaviors, predict events and have an strongly knowledge to take decisions. The growth of the events, results in a large amount of data colected and this data needs to be processed to get value information. This data have a temporal component from the collect process (daily, monthly or annualy) and this need to be consider on the exploration. The exploration based on temporal component can be uni-scale or multi-scale. The data mining goes toward to extract knowledge from large databases and if combined with visualization tools, the data mining can be more effective to detect information. This visualization tools display data and allow user to manipulate and change it by interaction features toward your goal. The user can combine tools and combine the steps of visualization among the tools through messages. This monograph aim to insert interactivity on AdaptaVis architecture model, developed by Shimabukuro (2004), the InfoVis, then extends its ability of exploration and provide a consistent base for the user handle data and extract information

Processo de fabricação de tarugos pelo método HotTop de ligas de alumínio da série 6XXX e as não conformidades desse processamento

The goal of this work is to report some problems that occur in the in the production of aluminum billets (series 6XXX) produced by the hot top process in the Alcoa aluminum Inc. The aluminum fabrication process is described from its first stage, since the mining until the reduction, smelting and treatment of the metal. One of the plant’s final product, are billets for clients that produce profiles by extrusion. The product’s final quality highly depends on the whole production process. Therefore it’s necessary to use good practices in the treatment of the metal, follow up its fabrication and control its thermal treatment, in order to meet the required standards to satisfy the clients. The billet’s production method and its variables will be detailed through temperature and casting speed, cone of water flow, cooling rate, duration of thermal treatment, degassing and metal “in line “filtering, in other words when it’s still found in its liquid state. The non-conformities of the process were studied by metallographic analysis, both macrostutural and microstructural that will be described and discussed in this work

Caracterização geotécnica com base na compartimentação fisiográfica: aplicação em Poços de Caldas - MG

This work presents a comparison of alkaline and cristaline terrains of an area inside a Poços de Caldas (MG) contry for appropriate urban expansion. The study area has 52km2 through rural and urban terrains with geological and geomorphological differences. At present Poços de Caldas has more than 130 thousand people and expansion government plans are from 1993 showing the necessity of studies of infrastructure to population and tourists. At last 40 years the city became a place with job offers in bauxite minning causing a population increase about 200%. At this way this work uses the Vedolvello (2000)´s method of terrains physiographic compartimentalization (UBCs) with integrated analysis (Land Systems) made by remote sensing products (air photos). After that field trips was performed to check unity limits by observation of rocks, relief and weathering soil profile. The main results are Engineering Geological Map and a classification table of Basic Units of Compartimentalization to presents the characteristics to uses and soil occupation.

Planejamento do projeto de adequação de segurança de máquinas numa multinacional produtora de absorventes descartáveis

Currently, more and more processing activities within companies are seen as projects. Project management, as a theory, is well developed and is accepted today in the market as a required competency for organizations. Various methods and techniques have been developed covering all aspects of a project, from conception to final delivery of the products produced by the same. The overall objective of the study is to report the experience of developing the project planning for the machine safety adequacy in robotic cells pallet manufacturers, demonstrating the importance of knowledge in the area of project management for the productive sector, and focusing on the difficulties encountered in particular project. Thus was developed the scope management by a team composed of different areas of engineering, and implementation strategy of the project was chosen from the tool BVOA, with the possible subsequent definition of the project schedule. Furthermore, the risk planning was analyzed using FMECA tool that predicts and mitigates potential failures. It is concluded that the constant and direct relationship between the different stakeholders generates more efficient results, reaching the demands of the project. The definition of alternatives for implementation enabled the viability of the project, and the study of failures was positive to enrich the analysis of planning

Levantamento estrutural da porção norte do Greenstone Belt do rio Itapicuru e dos Alvos Encantado e C1W, Bahia

The study area is located in the geological context of the northern portion of the Rio Itapicuru Greenstone Belt (GBRI), located northeast of the São Francisco Craton, Bahia State. The GBRI is known for its great economic potential for gold mineralization, looking south at Fazenda Brasileiro Mine and North Mine Maria Preta, is situated in the study área. The structural pattern of the northern portion of the Greenstone, theme of this work, is of great importance to understand the mineralization present. To characterize the structural model three geologic sections (scale 1:25000) were made with NW-SE and EW directions and detailing two mineralized targets, Encantado, located northwest of the area, near the city of Nordestina, and C1W, located near Itapicuru River, west of the Maria Preta mine. Thus, field work and petrographic analysis were conducted, that allow to indicate the existence of two structural domains characterized by the existence of a main foliation, low angle dipping main foliation and another with high dip angle, both with NW, moreover, folds occur in the area Dn-1 and post-Dn folds. Dn-1 folds are observed less frequently but they occur mainly forming an oblique foliation and the Sn is present in porphyroblasts observed in petrographic analysis, whereas in relation to the folds post Dn, there are more than one type of folding in area, which differ by the orientation of their axis, a post Dn NS and EW Dn another post. Moreover, two areas of metamorphic green schist (biotite zone) and medium amphibolite, which are directly related to the structural domains found