Soft Wood
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. AVALIAÇÃO DE FRAGMENTOS DE LENHOS CARBONIZADOS DE ARAUCARIACEAE POR MEIO DE TERMOGRAVIMETRIA E INFRAVERMELHO ASSOCIADAS À ANÁLISE MULTIVARIADA
The aim of the study is to evaluate the physical and chemical changes that occur on wood fragments submitted to different temperatures, verifying their influence on significant chemical characteristics in the forming process. Carbonization process in muffle associated to the techniques of Thermogravimetry, Fourier Transform Infrared Spectroscopy (FTIR) and m
Quím. Nova. Publicado em: 2017-09
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2. In situ polymerized wood polymer composite: effect of additives and nanoclay on the thermal, mechanical properties
This study concerns the preparation and characterization of wood polymer nanocomposites based on impregnation of styrene acrylonitrile co-polymer-nanoclay intercalating system in presence of glycidyl methacrylate (GMA), a cross linking agent, and vinyl trichloro silane (VTCS) as additives into Simul (Bombex ceiba, L.), a soft wood. The effect of nanoclay and
Mat. Res.. Publicado em: 14/05/2013
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3. A pré-fabricação de dois sistemas de cobertura com madeira de florestas plantadas. Estudos de casos: os assentamentos rurais Pirituba II e Sepé Tiaraju / The two prefabricated roofing systems with soft-wood from reforestations. Case studies: the rural settlements Pirituba II and Sepé Tiaraju
Grande parte das moradias brasileiras apresenta coberturas inadequadas, conforme indicação de pesquisa sobre o deficit habitacional. A carpintaria dessas coberturas necessita de mão de obra qualificada e materiais de custos elevados, porém, na maioria dos casos ainda hoje utiliza processo construtivo artesanal. O objetivo deste trabalho é identificar qu
Publicado em: 2011
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4. Surface Characterization Techniques applied in heat-treated wood / Utilização de técnicas de caracterização de superfícies em madeiras tratadas termicamente
The main aim of this work was the characterization of changes of properties occurred on the surface and structure of heat-treated wood in response to thermal treatments. In order to cover different types of heat-treated wood, two species were elected as models for two great groups of woods, the so-called hard and soft woods. The samples were thermally treate
Publicado em: 2009
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5. ImplicaÃÃes de fatores ambientais na deposiÃÃo de plÃsticos no ambiente praial de um ecossistema estuarino
Marine debris are materials from anthropogenic sources, such as plastics, paper, glass, wood and others, that enter the marine and coastal environments from multiple sources, and are considered as one of the most important marine pollutants by the turn of the XXI Century. Sandy beaches are usually more studied because they are relatively easy to be monitored
Publicado em: 2008
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6. Wood-Destroying Soft Rot Fungi in the Historic Expedition Huts of Antarctica
Three expedition huts in the Ross Sea region of Antarctica, built between 1901 and 1911 by Robert F. Scott and Ernest Shackleton, sheltered and stored the supplies for up to 48 men for 3 years during their explorations and scientific investigation in the South Pole region. The huts, built with wood taken to Antarctica by the early explorers, have deteriorate
American Society for Microbiology.
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7. The nature of the soft palate
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8. Nitrogen cycling by wood decomposing soft-rot fungi in the “King Midas tomb,” Gordion, Turkey
Archaeological wood in ancient tombs is found usually with extensive degradation, limiting what can be learned about the diet, environment, health, and cultural practices of the tomb builders and occupants. Within Tumulus Midas Mound at Gordion, Turkey, thought to be the tomb of the Phrygian King Midas of the 8th century B.C., we applied a stable nitrogen is
The National Academy of Sciences.
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9. Phenolic Compound Utilization by the Soft Rot Fungus Lecythophora hoffmannii
Nine phenolic compounds were metabolized by the soft rot fungus Lecythophora hoffmannii via protocatechuic acid and subsequently cleaved by protocatechuate 3,4-dioxygenase as determined by oxygen uptake, substrate depletion, and ring cleavage analysis. Catechol was metabolized by catechol 1,2-dioxygenase. Fungal utilization of these aromatic compounds may be
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10. Surface colonies of Leptospira interrogans.
Observations of colonial growth of Leptospira interrogans serovar pomona, BJ, on soft-agar (1% agar) plates revealed the presence of both surface and subsurface colonies. The organisms from both types of colonies appeared to be similar in motility, morphology, antigenic composition, and pathogenicity. Passage in vivo tended to produce a higher incidence of s
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11. Anaerobic Fermentation of Woody Biomass Pretreated with Supercritical Ammonia †
The degradability of ground hardwood by thermophilic anaerobic bacteria (Clostridium thermocellum with or without Thermoanaerobacter strain B6A) was greatly enhanced by pretreatment of the substrate with supercritical ammonia. Relative to C. thermocellum monocultures, cocultures of C. thermocellum and Thermoanaerobacter strain B6A degraded 1.5-fold more pret
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12. Streptococcal toxic shock-like syndrome. The importance of surgical intervention.
Pyrogenic exotoxins A, B, and C produced by group A beta-hemolytic streptococci (Streptococcus pyogenes) may cause a syndrome characterized by fever, rash, desquamation, hypotension, and multi-organ-system dysfunction. This syndrome, the streptococcal toxic shock-like syndrome (TSLS), has a rapid and fulminant course closely resembling the staphylococcal tox