Results 211 to 220 of about 1,064,069 (358)
La enseñanza de la química en la Universidad Nacional de La Plata [PDF]
Facultad de Ciencias Jurídicas y ...
openaire +1 more source
NOTAS PARA UMA ANÁLISE SOCIOLÓGICA SOBRE A CASTRAÇÃO QUÍMICA.
Nathália Nunes Ponteli+1 more
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Abstract Biofuels undergo oxidative degradation, which reduces their storage stability and efficiency, hindering their large‐scale adoption and integration into the global energy matrix. To address this issue, we synthesized and characterized four novel quinolinone–chalcone derivatives (substituted with Br, Cl, OCH3 and OCH2CH3) as potential ...
Vitor S. Duarte+8 more
wiley +1 more source
Two-Year Hydrocarbon Variations in Sediments of the Ring of Cenotes, Yucatan, Mexico. [PDF]
Arcega-Cabrera F+4 more
europepmc +1 more source
Abstract Variability in fossil fuel prices and a commitment to reducing greenhouse gas (GHG) emissions have driven the US pulp and paper (P&P) industry to adopt technologies that decrease reliance on fossil fuels. In this regard, enhancing energy efficiency is crucial to the decarbonization of the sector.
Rodrigo Buitrago‐Tello+5 more
wiley +1 more source
Visible-light-initiated metal-free C<sub>sp<sup>3</sup></sub> -C<sub>sp<sup>3</sup></sub> to C<sub>sp<sup>3</sup></sub> -N conversion in homobenzylic sulfonamides with <i>N</i>-iodoimides. [PDF]
Morales-Ortega G, Merino E, Carreras J.
europepmc +1 more source
Espectrometría de infrarrojo.—Una técnica de estudio en la química de de los cementos
Tomás Vázquez Moreno
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Abstract This study investigated the biosynthesis of ethyl oleate (EO), the main constituent of biodiesel, via the esterification of oleic acid with ethanol, catalyzed by Candida antarctica lipase B (CALB) immobilized on a low‐cost support derived from cashew apple bagasse (CAB) lignin.
Hilldyson Moreira Levy+5 more
wiley +1 more source