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Resultados 246350-246369 de 265673
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Synthesis and viscometric characterization of poly(N,N-dimethylacrylamide) for DNA separations
(2001) [Trabalho completo publicado em evento] -
Synthesis, characterization and application by HVOF of a WCCoCr/NiCr nanocomposite as protective coating against erosive wear
(2018) [Artigo de periódico]The scope of this work is to synthetize and characterize a WCCoCr/NiCr nanocomposite evaluating its application as protective coating against erosive wear when applied by High Velocity Oxygen Fuel (HVOF). The composite was ... -
Synthesis, characterization and catalytic evaluation of magnetically recoverable SrO/CoFe2O4 nanocatalyst for biodiesel production from babassu oil transesterification
(2018) [Artigo de periódico]Biodiesel production has gained a lot of attention due to its environmental benefits and production from renewable sources. Here, it is reported a magnetically recoverable catalyst of SrO immobilized on a CoFe2O4 support ... -
Synthesis, characterization and ethylene oligomerization studies of chromium complexes bearing imino-furfural ligands
(2014) [Artigo de periódico]A series of chromium(III) complexes bearing imino-furfural ligands (Cr1-Cr4) were synthesized and characterized by high-resolution mass spectrometry (HRMS). All chromium precatalysts, activated with methylaluminoxane (MAO), ... -
Synthesis, characterization and photophysical properties of ESIPT reactive triazine derivatives
(2012) [Artigo de periódico]Uma série de quatro compostos fotoativos derivados da triazina foi obtida a partir da substituição nucleofílica aromática no cloreto cianúrico. Os compostos foram caracterizados por espectroscopia de infravermelho (IR) e ... -
Synthesis of 2,4-disubstituted thiazole combinatorial unit on solid-phase : microwave assisted conversion of alcohol to amine monitored by ft-ir
(2005) [Artigo de periódico]Síntese em fase sólida com auxílio de radiação de microondas do tiazol 2,4-dissubstituído 3 com Resina Merrifield é descrita. As reações envolveram a conversão do grupo hidroxila em amina em cinco etapas – incluindo ... -
Synthesis of 5-hydroxymethylfurfural from dehydration of fructose and glucose using ionic liquids
(2014) [Artigo de periódico]The production of 5-hydroxymethylfurfural (HMF) from sugars dehydration is an alternative for obtaining starting materials for the production of polyesters, polyamides and polyurethanes, due to the development of the new ... -
Synthesis of alkylseleno-carbohydrates and evaluation of their antioxidant properties
(2015) [Artigo de periódico]In the present study, we describe the synthesis of alkylseleno carbohydrates with different sugar scaffolds and the evaluation of their antioxidant activity profile. A compound possessing a C8 alkyl chain presented the ... -
Synthesis of Bi2FexNbO7 films applied as a catalyst for hydrogen production using visible-light photo-electrolysis
(2019) [Artigo de periódico]The seek for feasible sustainable mobility alternatives is a major concern of the society nowadays. By its turn, the production of hydrogen represents one of the main lines of study on clean energy, since hydrogen presents ... -
Synthesis of boolean functions through binary decision diagrams
(2015) [Trabalho de conclusão de graduação]Boolean functions are an integral component of computer science, from combinational circuits to satisfiability problems. However, although several problems can be encoded as Boolean formulas, often the most intuitive ... -
Synthesis of cobalt ferrite (CoFe2O4) by combustion with different concentrations of glycine
(2019) [Artigo de periódico]Among the wide range of applications of Cobalt Ferrite (CoFe2O4), its usage for the manufacturing of modern electronic devices such as solar panels, capacitors and batteries has been studied´ lately. Hence, solar-powered ... -
Synthesis of Controllers for Continuous-Time Delay Systems with Saturating Controls via LMI's
(2000) [Artigo de periódico]The stabilization of linear continuous-time systems with time delay in the state and subject to saturating controls is addressed. Sufficient conditions obtained via a linear matrix inequality (LMI) formulation are stated ... -
Synthesis of dihydropyrimidin-2-one/thione library and cytotoxic activity against the human U138-MG and rat C6 glioma cell lines
(2011) [Artigo de periódico]Duas séries de 4-aril-3,4-diidropirimidin-2(1H)-(tio)onas incluindo monastrol (1a), foram sintetizadas por uma metodologia não agressiva ao meio ambiente baseada no uso combinado de ácido cítrico ou ácido oxálico na presença ... -
Synthesis of GaN by N ion implantation in GaAs (001)
(1995) [Artigo de periódico]Both the hexagonal and cubic GaN phases were synthesized in GaAs ~001! by 50 keV N ion implantation at 380 °C and subsequent furnace annealing at 850–950 °C for 10 min–2 h. For a fluence of 1.531017 cm22, transmission ... -
Synthesis of hydro-sodalite as a heterogeneous catalyst for reaction kinetics of soybean oil trans-esterification
(2018) [Artigo de periódico]coal fly ash as a catalyst, under reaction conditions with different temperatures and reaction times. The catalyst characterization revealed that zeolite type hydro-sodalite was synthesized and consists of mesoporous ... -
Synthesis of imidazole-derived ionic liquids from monoterpenes by means of the sonogashira reaction
(2012) [Artigo de periódico]This work reports the functionalization of monoterpenoids with 2-iodo-1-methyl-1H-imidazole using Sonogashira crosscoupling reactions. Natural monoterpenes were also modified to obtain the corresponding alkynes which were ... -
Synthesis of limonene B-amino alcohol derivatives in support of new antileishmanial therapies
(2008) [Artigo de periódico] -
Synthesis of liquid crystals precursors containing the isoxazole core
(2019) [Resumo publicado em evento] -
Synthesis of magnetic nanoparticles functionalized with histidine and nickel to immobilize His-tagged enzymes using β-galactosidase as a model
(2021) [Artigo de periódico]The aim of this study was to synthesize iron magnetic nanoparticles functionalized with histidine and nickel (Fe3O4-His-Ni) to be used as support materials for oriented immobilization of His-tagged recombinant enzymes of ... -
Synthesis of metal-zeolite composite materials for bifunctional catalytic reactions
(2022) [Tese]Bifunctional zeolite-metal catalysts have been widely used in modem chemistry. The existing conventional preparation procedure such as impregnation usually leads to the deposition of large metal particles on the externai ...