Aplicação da eletrorresistividade na caracterização do meio hidrogeológico na cidade de JI-paraná (RO)

The Ji-Paraná city (RO) it doesn't possess public system of collection and treatment of sewers, being the waters residuárias produced by the local population thrown at sewages. Traditionally, many inhabitants use wells amazon extracted underground water or tubular shallow in the urban zone. The study accomplished in the Nova Brasília neighborhood for Silva (2009) revealed that the local aquifer is strongly contaminated for nitrate, originated of the decomposition of the organic matter deposited at the sewages local maidservants. With the objective of detecting areas with high concentrations originating from organic compositions of septic sewages, geophysical risings were accomplished, later related with analyses physical-chemistries in samples of groundwaters obtained in several wells installed in the Nova Brasília neighborhood, besides of soil samples descriptions in zone not saturated obtained in wells. The results obtained by the geophysical rehearsals they reveal that the polluting feather not migrates through the zone saturated, arriving with relative easiness to the aquifer, reaching in some points, superior depth to 34 m reached by the geoelectrical profiling.

Estimativa de emissão de carbono por difusão CO2 e CH4 na bacia do Ji-Paraná

Pós-graduação em Geociências e Meio Ambiente - IGCE

Memória e resistência na migraçao para a Amazônia : O caso de Nova Londrina em Ji-Paraná, estado de Rondônia, Brasil

The occupation of Rondônia, from the 1970s, occurred in a disorganized way, since it attracted an amount of migrants which was much bigger than the settling projects could sustain. The aim of this research was to analyze the circumstances in which the district of Nova Londrina was settled, utilizing for this reason a bibliographic survey, as well as the Oral History method. The arrival in Nova Londrina, Ji-Paraná, was highlighted by conflicts between the settlers and the settling company Calama S/A. In spite of the company's violence, the colonists resisted until there was an intervention from INCRA, through a land regularization program. In this context, the Urban Center for Rural Support (NUAR) was implanted, intending to support the agricultural workers

Memória e resistência na migraçao para a Amazônia : O caso de Nova Londrina em Ji-Paraná, estado de Rondônia, Brasil

The occupation of Rondônia, from the 1970s, occurred in a disorganized way, since it attracted an amount of migrants which was much bigger than the settling projects could sustain. The aim of this research was to analyze the circumstances in which the district of Nova Londrina was settled, utilizing for this reason a bibliographic survey, as well as the Oral History method. The arrival in Nova Londrina, Ji-Paraná, was highlighted by conflicts between the settlers and the settling company Calama S/A. In spite of the company's violence, the colonists resisted until there was an intervention from INCRA, through a land regularization program. In this context, the Urban Center for Rural Support (NUAR) was implanted, intending to support the agricultural workers

Memória e resistência na migraçao para a Amazônia : O caso de Nova Londrina em Ji-Paraná, estado de Rondônia, Brasil

The occupation of Rondônia, from the 1970s, occurred in a disorganized way, since it attracted an amount of migrants which was much bigger than the settling projects could sustain. The aim of this research was to analyze the circumstances in which the district of Nova Londrina was settled, utilizing for this reason a bibliographic survey, as well as the Oral History method. The arrival in Nova Londrina, Ji-Paraná, was highlighted by conflicts between the settlers and the settling company Calama S/A. In spite of the company's violence, the colonists resisted until there was an intervention from INCRA, through a land regularization program. In this context, the Urban Center for Rural Support (NUAR) was implanted, intending to support the agricultural workers

Memória e resistência na migraçao para a Amazônia : O caso de Nova Londrina em Ji-Paraná, estado de Rondônia, Brasil

The occupation of Rondônia, from the 1970s, occurred in a disorganized way, since it attracted an amount of migrants which was much bigger than the settling projects could sustain. The aim of this research was to analyze the circumstances in which the district of Nova Londrina was settled, utilizing for this reason a bibliographic survey, as well as the Oral History method. The arrival in Nova Londrina, Ji-Paraná, was highlighted by conflicts between the settlers and the settling company Calama S/A. In spite of the company's violence, the colonists resisted until there was an intervention from INCRA, through a land regularization program. In this context, the Urban Center for Rural Support (NUAR) was implanted, intending to support the agricultural workers

A review of the tectonic evolution of the Sunsas belt, SW Amazonian Craton

The Sunsas-Aguapei province (1.20-0.95 Ga), SW Amazonian Craton, is a key area to study the heterogeneous effects of collisional events with Laurentia, which shows evidence of the Grenvillian and Sunsas orogens. The Sunsas orogen, characterized by an allochthonous collisional-type belt (1.11-1.00 Ga), is the youngest and southwestern most of the events recorded along the cratonic fringe. Its evolution occurred after a period of long quiescence and erosion of the already cratonized provinces (>1.30 Ga), that led to sedimentation of the Sunsas and Vibosi groups in a passive margin setting. The passive margin stage was roughly contemporary with intraplate tectonics that produced the Nova Brasilandia proto-oceanic basin (<1.21 Ga), the reactivation of the Ji-Parana shear zone network (1.18-1.12 Ga) and a system of aborted rifts that evolved to the Huanchaca-Aguapei basin (1.17-1.15 Ga). The Sunsas belt is comprised by the metamorphosed Sunsas and Vibosi sequences, the Rincon del Tigre mafic-ultramafic sill and granitic intrusive suites. The latter rocks yield epsilon(Nd(t)) signatures (-0.5 to -4.5) and geochemistry (S,1, A-types) suggesting their origin associated with a continental arc setting. The Sunsas belt evolution is marked by ""tectonic fronts"" with sinistral offsets that was active from c. 1.08 to 1.05 Ga, along the southern edge of the Paragua microcontinent where K/Ar ages (1.27-1.34 Ga) and the Huanchaca-Aguapei flat-lying cover attest to the earliest tectonic stability at the time of the orogen. The Sunsas dynamics is coeval with inboard crustal shortening, transpression and magmatism in the Nova Brasilandia belt (1.13-1.00 Ga). Conversely, the Aguapei aulacogen (0.96-0.91 Ga) and nearby shear zones (0.93-0.91 Ga) are the late tectonic offshoots over the cratonic margin. The post-tectonic to anorogenic stages took place after ca. 1.00 Ga, evidenced by the occurrences of intra-plate A-type granites, pegmatites, mafic dikes and sills, as well as of graben basins. Integrated interpretation of the available data related to the Sunsas orogen supports the idea that the main nucleus of Rodinia incorporated the terrains forming the SW corner of Amazonia and most of the Grenvillian margin, as a result of two independent collisional events, as indicated in the Amazon region by the Ji-Parana shear zone event and the Sunsas belt, respectively. (C) 2009 Elsevier Ltd. All rights reserved.

Ferramentas para gestão estratégica da engenharia de manutenção: uma aplicação prática do MASP

Normalmente, os programas de manutenções implementados nas empresas de geração, transmissão e distribuição de energia elétrica buscam evitar que falhas venham a provocar a retirada do equipamento do sistema elétrico, o que significa grandes perdas financeiras, seja pela diminuição do faturamento, seja pelo pagamento de multas a agência reguladora, alem da diminuição da confiabilidade do sistema. Para evitar esses inconvenientes, a engenharia de manutencao lanca mao de ferramentas estrategicas para a gestao e solucoes dos problemas, visando a otimizacao, juntamente com circulo virtuoso de melhorias continuas nos processos de manutencao. Este trabalho tem por finalidade fazer uma analise da Metodologia de Analise e Solucao de Problemas (MASP), como ferramenta de gestao estrategica na busca e solucao de problemas no ambito da engenharia de manutencao. Para isso, inicialmente, apresenta-se uma serie de informacoes sobre a gestao da manutencao, bem como todo o arcabouco que envolve qualidade e ferramentas gerenciais. Com o capitulo que trata especificamente do MASP, tem-se uma nocao mais exata do quanto cada ferramenta e necessaria para que se possa desenvolver um bom trabalho, visto que ele retrata que essa metodologia nada mais e do que o somatorio de todas as ferramentas existentes, colocadas de maneira ordenada. Por fim, apresentam-se quatro estudos de casos, pelos quais pretendemos demonstrar a Metodologia de Analise e Solucao de Problemas e a aplicabilidade na gestão estratégica, com visão em resultados no ambiente da engenharia de manutenção no pilar das manutenções programadas e autônomas - MP/MA, no ambito da Divisãoo de Transmissão de Ji-Parana/RO - ORDJ, vinculada a Centrais Eletricas do Norte do Brasil (Eletronorte). Na conclusao, faz-se uma analise critica do uso da metodologia na prestação de serviços, baseada na aplicaão supracitada.

Length-weight relationship of fishes caught in the Itaipu Reservoir, Parana, Brazil

Parameters and related statistics of the length-weight relationship of the form W=aL super(b) are presented for 72 species of fish caught in the area of the Itaipu Reservoir in Parana, Brazil. The b values varied between 2.34 and 3.35, with the mean b=2.986 (s.d.=0.230) not significantly different from 3.0 (df=7, p=0.05).