Ecological Steel
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Approaches to capturing the Black and White Tegu Salvator merianae (Squamata: Teiidae)
ABSTRACT The use of traps is extremely important in several types of ecological studies, and may assist in the capture of individuals in areas that are difficult to access. In the present study, we compared the effectiveness of wooden (Schramm) versus "Tomahawk" traps to capture Salvator merianae (Duméril & Bibron, 1839) lizards. The study was conducted in
Zoologia (Curitiba). Publicado em: 2015-08
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2. Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
The chromate conversion treatment is widely used, but it requires highly toxic chromic acid solutions with the consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within European Union. The corrosion resistance of three alternative treatments applied on electrogalvanised steel, and immersed in a
Mat. Res.. Publicado em: 05/11/2013
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3. Desenvolvimento de um novo aço para moldes de plástico
Uma nova liga a base de ferro (aço) para moldes plásticos foi obtida com características melhoradas quando comparada aos materiais usualmente utilizados no mercado. Os materiais, existentes no mercado, usados como referência neste trabalho, também não são indicados para utilização que necessitem acabamentos especiais. Para aplicações de uso restri
Publicado em: 2010
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4. Ecological study of the effects of particulate matter atmospheric polution over the population of Piracicaba-SP / Estudo ecologico dos efeitos do material particulado atmosferico inalavel sobre a população do municipio de Piracicaba-SP
Countless studies point to associations between events of air pollution and increase in mortality from diseases of the circulatory and respiratory systems. The city of Piracicaba- SP is considered a center of national industrial production relying on steel industries and sugarcane and alcohol mills that require extensive crops of sugarcane in which is common
Publicado em: 2010
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5. Desempenho agronômico e alterações morfofisiológicas de hortaliças submetidas a sombreamento para o cultivo orgânico com faixas intercalares / Morphophysiological alterations and yeld of vegetables submitted at different irradiance levels fot the organic cultivation in alley cropping system
Shading effects on morphophisiological characteristics and performance under organic cultivation with sunnhemp (Crotalaria juncea L.) hedgerows were evaluated on rocket plant [Eruca sativa (Mill)], radish (Raphanus sativus L.) and butter head and crisp head lettuce (Lactuca sativa L.), cultivated in different seasons. The experiments were carried out in Sero
Publicado em: 2008
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6. SUSCEPTIBILIDADE DOS ECOSSISTEMAS CONTINENTAIS DA BAIXADA MARANHENSE AOS EFLUENTES ATMOSFÉRICOS LIBERADOS POR SÃO LUÍS MA: ESTUDOS DE CASO DE PINHEIRO E VIANA / SUSCEPTIBILITY OF CONTINENTAL ECOSYSTEMS DONTOWN AT THE ATMOSPHERIC EFFLUENTS RELEASED BY SÃO LUIS: case studies Pinheiro and Viana
In Maranhao, studies on the atmospheric chemistry are scarce, with only one record for the region of Lagoa do Caco, in First Cross. Although still a developing city, with moderate urban growth and incipient industrialization rate, the implantation of the steel complex in St. Louis - as the Aluminum Industry of Maranhão (ALUMAR) and the pellet plant and prod
Publicado em: 2006
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7. High-temperature oxidation of pure Fe and the ferritic steel 2.25Cr1Mo
The global pressure for recycling and ecological energy production increases steadily in combination with the demand of cost-effective application of materials. However, some severe corrosion problems, associated with the high internal/intergranular corrosion rates in boiler components need to be avoid. Some commercial boiler materials contain a Cr content o
Materials Research. Publicado em: 2005-12
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8. EXPERIMENTAL ANALYSIS OF THE DYNAMIC PROPERTIES OF THE BAMBOOS OF THE SPECIES GUADUA, DENDEDROCALAMUS E AUREA / ANÁLISE EXPERIMENTAL DAS PROPRIEDADES DINÂMICAS DOS BAMBUS DAS ESPÉCIES GUADUA, DENDROCALAMUS E AUREA
The Bamboo is classidied as Bambusoideae or as Bambusaeceae that can be fond in abundance in tropical and sub-tropical contries. Studies had shown that the relation tensile stregth and specific weight of the bamboo is 2.73 greater that of the steel with the advantage to have a low consumption of energy and low cost in its production, besides being a renewabl
Publicado em: 2005
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9. Nano vitrocerâmica de escória de aciaria
The manufacture of glass-ceramics is an alternative route for the commercial use of metallurgical slags. Such types of glass-ceramics may find commercial applications owing to their low cost, good mechanical properties and superior visual aspect. Besides, due to the elimination of that industrial residue from the environment and also due to the possibility o
Química Nova. Publicado em: 2002-09
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10. Analise de ciclo de vida : estudo de caso para materiais e componentes automotivos no Brasil
The social conscious increase about the natural resources limitation and the planet capacity is one of the most important behaviour changes, however slowly. The utilization of end-pipe technologies to control the pollution only transforms the air and water pollution into a solid residue .problem. The ecological industry concept or dematerialization emerged a
Publicado em: 2001
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11. Reforço a flexão mediante colagem de armadura externa : um estudo da durabilidade
Regular materials used in construction have their properties modified due to the characteristics of the materials of which they are composed and their reactions to the environment. The relation between concrete quality and its mechanical strength leaves behind one of the most important aspects: durability. The same consideration can be made for steel and res
Publicado em: 2000
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12. Response of C3 and C4 plants to middle-Holocene climatic variation near the prairie–forest ecotone of Minnesota
Paleorecords of the middle Holocene (MH) from the North American mid-continent can offer insights into ecological responses to pervasive drought that may accompany future climatic warming. We analyzed MH sediments from West Olaf Lake (WOL) and Steel Lake (SL) in Minnesota to examine the effects of warm/dry climatic conditions on prairie–woodland ecosystems
National Academy of Sciences.