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Investigation on the use of coir fiber as alternative reinforcement in polypropylene
(2010)
Polypropylene/coir fiber composites were prepared according to an experimental statistical design, in which the independent variables, coir fiber, and compatibilizer content, were varied. The compatibilizer used was maleic ...
Emissions from sugar cane fires in the Central & Western State of São Paulo and aerosol layers over metropolitan São Paulo observed by IPEN's lidar: Is there a connection?
(2011-04-26)
The central and western parts of the State of São Paulo are well-known for vast sugar cane plantations, which during the harvest time are traditionally burnt about 12 hours before manual cutting. This procedure causes the ...
Inferring a weighted elastic network from partial unfolding with coarse-grained simulations
(Wiley-Blackwell, 2014)
Retention strength of cobalt-chromium vs nickel-chromium titanium vs Cp titanium in a cast framework association of removable partial overdenture
(2011-05-01)
Aim: There is little information considering the framework association between cast clasps and attachments. The aim of this study was to evaluate the retention strength of frameworks match circumferential clasps and extra ...
Anelastic relaxation due to hydrogen in Ti-35Nb-7Zr-5Ta alloy
(Elsevier B.V. Sa, 2011-04-15)
Titanium and its alloys are frequently used in the production of prostheses and dental implants due to their properties, such as high corrosion resistance, low elasticity modulus, and high mechanical strength/density ...
Fabrication of phytic acid sensor based on mixed phytase-lipid Langmuir-Blodgett films
(Amer Chemical Soc, 2006-09-26)
This paper reports the surface activity of phytase at the air-water interface, its interaction with lipid monolayers, and the construction of a new phytic acid biosensor on the basis of the Langmuir-Blodgett (LB) technique. ...
Processing and hygrothermal effects on viscoelastic behavior of glass fiber/epoxy composites
(Springer, 2005-07-01)
Fiber reinforced epoxy composites are used in a wide variety of applications in the aerospace field. These materials have high specific moduli, high specific strength and their properties can be tailored to application ...
Evaluation of weather influence on mechanical and viscoelastic properties of polyetherimide/carbon fiber composites
(2013-06-01)
In order to investigate how environmental degradation affects the mechanical and thermal performance of polyetherimide/carbon fiber laminates, in this work different weathering were conducted. Additionally, dynamic mechanical ...
Propriedades de resistência e rigidez da madeira juvenil e adulta de Pinus taeda L.
(Sociedade de Investigações Florestais, 2003-06-01)
O objetivo do presente trabalho foi o estudo da variabilidade das propriedades de resistência e rigidez à flexão estática e à densidade aparente (12%) entre a madeira juvenil e adulta de Pinus taeda L., de 37 anos de idade, ...
Effect of cold plasma treatment on mechanical properties of PET/PMMA composites
(Elsevier B.V., 2005-01-01)
Mechanical strength of polyethylene terephthalate (PET) fibres and polymethyl methacrylate (PMMA) matrix composites were studied with particular interest on the effects of oxygen and argon plasma treated fibres. PET. fibres ...