Helena Maria Wilhelm

The influence of BHA, BHT and TBHQ on the oxidation stability of soybean oil ethyl esters (biodiesel)

Anderson Kurunczi Domingos, Emir B. Saad, Wellington W. D. Vechiatto et al. · Journal of the Brazilian Chemical Society · 2007 · 193 citations · Full text

Food Chemistry, Chemical Engineering, Food Bioactive Compound +14

Optimization of the ethanolysis of Raphanus sativus (L. Var.) crude oil applying the response surface methodology

Anderson Kurunczi Domingos, Emir B. Saad, Helena Maria Wilhelm et al. · Bioresource Technology · 2007 · 132 citations

Chemical Engineering, Engineering, Bioenergy +8

Ethanolysis of Refined Soybean Oil Assisted by Sodium and Potassium Hydroxides

Karla T. Kucek, Maria Aparecida F. César‐Oliveira, Helena Maria Wilhelm et al. · Journal of the American Oil Chemists Society · 2007 · 131 citations

Oil Mr, Potassium Hydroxides, Bioenergy +16

Chitosan and <i>N</i>‐carboxymethylchitosan: I. The role of <i>N</i>‐carboxymethylation of chitosan in the thermal stability and dynamic mechanical properties of its films

Maria Enoi Santos Miranda, Catiana Marcolla, Clóvis Antônio Rodrigues et al. · Polymer International · 2006 · 75 citations

Materials Science, Chemical Engineering, Thermal Degradation Peak +14

Interface recombination in heterojunction solar cells: Influence of buffer layer thickness

Helena Maria Wilhelm, Hans‐Werner Schock, Roland Scheer · Journal of Applied Physics · 2011 · 74 citations

Activation Energy, Diode Quality Factor, Electrical Engineering +13