Electron Impact
Mostrando 1-12 de 223 artigos, teses e dissertações.
-
1. Agro-Industrial Waste Valorization: Transformation of Starch from Mango Kernel into Biocompatible, Thermoresponsive and High Swelling Nanogels
Mango industry processing disposes 40-60% of this fruit as residues, such as peels and kernels. The exploration of bioproducts from these industrial rejects can reduce environmental impact besides of producing high value-added materials. In this scenario, carboxymethyl starch nanoparticles were produced from mango (Mangifera indica L.) kernel starch. These n
J. Braz. Chem. Soc.. Publicado em: 2021-08
-
2. MECHANICAL AND PHYSICAL PROPERTIES OF WOOD/POLYETHYLENE COMPOSITE REINFORCED WITH TIO2 NANOPARTICLES
ABSTRACT Wood plastic composite was fabricated using high density polyethylene and pine wood fiber. The effect of addition of TiO2 nanoparticles at different weight fractions (0%, 1%, 3%, and 5%) on some properties of the composite was examined. The experimental composites were tested for bending strength, tensile strength, Izod impact strength, thickness sw
CERNE. Publicado em: 2020-12
-
3. Deep impact of COVID-19 in the healthcare of Latin America: the case of Brazil
ABSTRACT Background: Latent HIV-1 is a major hurdle in obtaining HIV-1 sustained virological remission (SVR). Here we explored histone deacetylation inhibition property of nicotinamide (NAM; n = 17) for the first time in comparison to a combination of methyltransferase inhibitors (MTIs; Chaetocin and BIX01294; n = 25) to reactivate latent HIV ex vivo in CD8
Braz J Infect Dis. Publicado em: 2020-04
-
4. Evaluation of the Projectile's loss of Energy in Polyester Composite Reinforced with Fique Fiber and Fabric
Firearms threat has always been a matter of personal concern, especially to soldiers in armed conflicts as well as police officers and civilians involved with public security. A multilayered armor system (MAS) is intended to personal protection against high kinetic energy ammunition, such as that used in rifles. MAS layers are normally composed of a front ce
Mat. Res.. Publicado em: 21/10/2019
-
5. Foliar application of silicon decreases wheat blast symptoms without impairing photosynthesis
ABSTRACT Considering the importance of blast, caused by Pyricularia oryzae, to impact wheat yield, this study investigated whether the foliar spray of potassium silicate (PS) could affect the photosynthesis of wheat plants and its potential to reduce disease symptoms. The Exp. 1 aimed to determine the effect of the foliar spray of PS on the photosynthetic pe
Bragantia. Publicado em: 03/10/2019
-
6. Fiber concentrates from asparagus by-products: Microstructure, composition, functional and antioxidant properties
RESUMO O subproduto do processamento de aspargo possui alto teor de nutrientes e compostos bioativos. Com base nisto, torna-se interessante a investigação de opções de tratamento para a obtenção de produto com melhor qualidade nutricional evitando seu desperdício e, consequentemente, seu impacto ambiental. O objetivo deste trabalho foi produzir e cara
Ciênc. agrotec.. Publicado em: 30/09/2019
-
7. Mechanical Properties and Metallurgical Characterization of LM25/ZrO2 Composites Fabricated by Stir Casting Method
ABSTRACT Zirconia (ZrO2) dispersed aluminum alloy metal matrix composites produced by stir casting techniques. Using stir casting techniques, aluminium based composites with varying amounts of 3%, 6%, 9%, and 12% of zirconia by weight are fabricated. The prepared samples were subjected to physical, mechanical,tribiology and microstructure investigation. The
Matéria (Rio J.). Publicado em: 16/09/2019
-
8. Reuse of iron ore tailings in the production of geopolymer mortars
Abstract A great variety of silica and alumina-rich materials have been investigated in the production of alkaline activated binders (or geopolymers) with low environment impact, e.g. low CO2 emissions. Geopolymer mortars and concretes may be more environmentally friendly if not only Portland cement but also natural aggregates (sand, gravel) are replaced wit
REM, Int. Eng. J.. Publicado em: 16/09/2019
-
9. Avaliação do efeito do agente compatibilizante (PP-g-MA) em misturas PP/Amido termoplástico
RESUMO O crescente desperdício de materiais plásticos no meio ambiente juntamente com a preocupação com a futura escassez do petróleo tem aumentado o interesse por polímeros biodegradáveis, como o amido. Nos últimos anos, o amido tem sido utilizado em misturas com diferentes polímeros sintéticos. Essas misturas têm sido compatibilizadas por meio d
Matéria (Rio J.). Publicado em: 16/09/2019
-
10. Properties and Morphology of Polypropylene/Big Bags Compounds
In this work, compounds based on two grades of polypropylene (PP), i.e., PP H503 or PP H103 with residues of Big bag fabrics (RBB) were processed in a corrotational twin screw extruder with RBB content ranging from 10% to 50% of the weight. Then, their thermal properties were investigated through Differential Scanning Calorimetry (DSC) and Thermogravimetry (
Mat. Res.. Publicado em: 05/09/2019
-
11. Toughening of bio-PE upon addition of PCL and PEgAA
Abstract Researches of polymer blends based on biological and biodegradable polymers appear as a viable alternative to develop environmentally friendly materials. Therefore, the aim of this research was to produce compounds made with biological polyethylene, i.e., Biopolyethylene, Bio-PE, added to the biodegradable Polycaprolactone (PCL) and functionalized b
REM, Int. Eng. J.. Publicado em: 19/06/2019
-
12. Compatibility and characterization of Bio-PE/PCL blends
Abstract In this work, blends based on environmentally friend polymers such as Biopolyethylene (Bio-PE), Polycaprolactone (PCL) and Polyethylene graft maleic anhydride (PEgMA) added as compatibilizer agent were produced by conventional extrusion, aiming to produce bio-blends with synergic properties at low processing cost, being at same time non-polluting an
Polímeros. Publicado em: 10/06/2019