Heat Stabilizer
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Silver nanoparticle thin films deposited on glass surface using an ionic silsesquioxane as stabilizer and as crosslinking agent
Thin films containing silver nanoparticles homogeneously dispersed, with narrow size distribution below 10 nm, were synthesized on flat glass surface, by using an ionic silsesquioxane as stabilizer and crosslinking agent. The films can be prepared without previous functionalization of substrate surfaces and without addition of other components. The films wer
J. Braz. Chem. Soc.. Publicado em: 2015-05
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2. INSERÇÃO DE NANOPARTÍCULAS METÁLICAS EM RESINA EPÓXI: estudos espectroscópicos. / INSERTION OF METAL NANOPARTICLES IN EPOXY RESIN: spectroscopic studies.
This work describes the production and characterization of colloidal solution of silver nanoparticles (AgNPs) and insertion of this colloidal solution in a polymeric ma-trix of epoxy resin. The first stage of this work was the preparation of AgNPs in colloi-dal solution, using AgNO3 as the precursor, ethylene glycol as a medium and dispersant sodium citrate
Publicado em: 2011
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3. Avaliação comparativa de materiais poliméricos em coletores de admissão para aplicações de motores diesel / Comparative evaluation of polymeric materials on intake manifold for diesel engines application
In the modem world where we live, due to incited competition in the automobilist market, emerges the necessity an engine much more economic and il is worsen by the international competition with the Asian markets. Thus, accelerate not only the race for the raise of the quality and cost reduction of products, but also for the environment topics, such as the r
Publicado em: 2010
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4. Estudo reologico dos amidos de amaranto, de mandioca e de suas misturas, sob condições de acidez e tratamento termico / Rheological study of cassava and amaranth starches and their blends under heat treatment and acidity
Starch has been widely used as a thickener, stabilizer or gelling ingredients in the food like soups, sauces, snacks, canned and refrigerated food products. In this foods processing, starch dispersion are often heated, cooled and pumping at a wide range of shear rate. In many foods, sours substances (various acids) are added to foods as acidulents or preserv
Publicado em: 2008
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5. Optimization the formulations of heat stabilizers systems for PVC throuth mixture designs. / Otimização de formulações de sistemas estabilizantes para PVC através de projetos de mistura.
O objetivo deste trabalho é otimizar formulações de estabilizantes térmicos para PVC (policloreto de vinila) pelo uso de técnicas de projetos de mistura, estendida a problemas com informação incompleta. O problema de mistura consiste em minimizar o custo de formulação enquanto se obtém um produto que satisfaça especificações técnicas e de merca
Publicado em: 2005
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6. Evaluation of parameters associated with UV/EB cured clearcoats degradation used in outdoor environment / Avaliação da formação e degradação de filmes de vernizes curados por radiação ultravioleta e feixe de elétrons e expostos ao envelhecimento acelerado
The materials curable by ultraviolet (UV) or electron beam (EB) radiation such as inks, adhesives and coatings are reactive compounds made up of resin, monomer, photoinitiator and additives which undergo polymerization and crosslinking under irradiation producing thermoset products. This technology has been used in a great variety of industrial applications,
Publicado em: 2003
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7. Heat shock protein coinducers with no effect on protein denaturation specifically modulate the membrane lipid phase
The hydroxylamine derivative bimoclomol (BM) has been shown to activate natural cytoprotective homeostatic responses by enhancing the capability of cells to cope with various pathophysiological conditions. It exerts its effect in synergy with low levels of stress to induce the synthesis of members of major stress protein families. We show here that the prese
The National Academy of Sciences.
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8. Effects of Ingredients Used in Condensed and Frozen Dairy Products on Thermal Resistance of Potentially Pathogenic Staphylococci1
A cell suspension of Staphylococcus aureus (196E) was injected into raw skim milk which contained different concentrations of sugar, serum solids, fat, stabilizers, and emulsifiers. The ingredient samples were exposed for the desired length of time in a constant-temperature water bath (60 C). Standard plate counts were made, and the number of surviving organ
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9. Loss of Cardiolipin Leads to Longevity Defects That Are Alleviated by Alterations in Stress Response Signaling*
Perturbation of cardiolipin (CL) synthesis in yeast cells leads to defective respiratory chain function and mitochondrial DNA loss, both of which have been implicated in aging in mammals. The availability of yeast CL mutants enabled us to directly investigate the role of CL synthesis in aging. In this report, we show that the replicative life span of pgs1Δ,
American Society for Biochemistry and Molecular Biology.
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10. Thermostabilization of Proteins by Diglycerol Phosphate, a New Compatible Solute from the Hyperthermophile Archaeoglobus fulgidus
Diglycerol phosphate accumulates under salt stress in the archaeon Archaeoglobus fulgidus (L. O. Martins, R. Huber, H. Huber, K. O. Stetter, M. S. da Costa, and H. Santos, Appl. Environ. Microbiol. 63:896–902, 1997). This solute was purified after extraction from the cell biomass. In addition, the optically active and the optically inactive (racemic) forms
American Society for Microbiology.
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11. Zeaxanthin Deficiency Enhances the High Light Sensitivity of an Ascorbate-Deficient Mutant of Arabidopsis1
The ascorbate content of plants is usually increased in high light (HL), implying a function for ascorbate in the acclimation of plants to HL. Nevertheless, the importance of ascorbate in HL acclimation has not yet been tested directly. Here, we report on the acclimation process of an ascorbate-deficient Arabidopsis mutant to HL. The mutant vtc2 has only 10%
The American Society for Plant Biologists.
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12. Interaction between various polymerized human albumins and hepatitis B surface antigen.
A variety of albumin polymers were prepared and tested for binding with hepatitis B surface antigen (HBsAg): synthetic polymers cross-linked by either glutaraldehyde or carbodiimide; heat-aggregated polymers made by heating albumin solutions at 60 degrees C for 10 h with or without albumin stabilizer; and polymers isolated from fresh or long-stored commercia