Results 21 to 30 of about 1,326,777 (407)
Modeling and Prediction of Coal Ash Fusion Temperature based on BP Neural Network
MATEC Web of Conferences, 2016 Coal ash is the residual generated from combustion of coal. The ash fusion temperature (AFT) of coal gives detail information on the suitability of a coal source for gasification procedures, and specifically to which extent ash agglomeration or ...
Miao Suzhen +4 more
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Scientific Reports, 2017 In this work, the effect of weak acid anions on the ammonia removal has been extensively studied for the process of selective catalytic wet air oxidation (CWAO) of ammonia to nitrogen.
Zidan Wang +6 more
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Functional characterization of a melon alcohol acyl-transferase gene family involved in the biosynthesis of ester volatiles. Identification of the crucial role of a threonine residue for enzyme activity [PDF]
, 2005 Volatile esters, a major class of compounds contributing to the aroma of many fruit, are synthesized by alcohol acyl-transferases (AAT). We demonstrate here that, in Charentais melon (Cucumis melo var.
A. Aggelis +53 more
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Esterification of malic acid on various catalysts
Тонкие химические технологии, 2020 Objectives. The study aims to identify the optimal choice of an effective catalyst for the esterification of malic acid to produce esters of high purity. Methods. To determine the qualitative and quantitative composition of reaction masses, the following
N. S. Kuzmina +2 more
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A convenient tandem one-pot synthesis of donor-acceptor-type triphenylene 2,3-dicarboxylic esters from diarylacetylene [PDF]
, 2014 A tandem one-pot method for the direct synthesis of polysubstituted triphenylene 2,3-dicarboxylic esters with different substitution patterns was developed by enyne metathesis of diarylacetylene, followed by Diels–Alder, aromatization and a cyclization ...
Feng, Chun +9 more
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Chemistry – A European Journal, 2015 AbstractThe introduction of ester groups on the 5‐ and 15‐meso positions of corroles stabilizes them against oxidation and induces a redshift of their absorption and emission spectra. These effects are studied through the photophysical and electrochemical characterization of up to 16 different 5,15‐diester corroles, in which the third meso position is ...
Canard, Gabriel +5 more
openaire +3 more sources
Use of metal catalysts bearing Schiff base macrocycles for the ring opening polymerization (ROP) of cyclic esters [PDF]
, 2017 © 2017 by the authors. Schiff base macrocycles are emerging as useful scaffolds for binding two or more catalytic metals in close proximity. Such coordination chemistry allows for the evaluation of potentially beneficial catalytic cooperative effects. In
Redshaw, Carl
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Effects of a Small Increase in Carbon Dioxide Pressure during Fermentation on Wine Aroma
Foods, 2020 The present study tested the effect of a slight increase in pressure (from 0 to 1 bar) during the fermentation on the wine aroma profile. Fermentations were carried out with a commercial dry yeast on Sangiovese juice in the absence of berry skins.
Lorenzo Guerrini +5 more
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Formation, Losses, Preservation and Recovery of Aroma Compounds in the Winemaking Process
Fermentation, 2022 A wine’s aroma profile is an important part of the criteria affecting wine acceptability by consumers. Its characterisation is complex because volatile molecules usually belong to different classes such as alcohols, esters, aldehydes, acids, terpenes ...
Bozena Prusova +3 more
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Journal of the American Chemical Society, 2019 Azetidines are important motifs in medicinal chemistry, but there are a limited number of methods for their synthesis. Herein, we present a new method for their modular construction by exploiting the high ring strain associated with azabicyclo[1.1.0 ...
Alexander Fawcett +3 more
semanticscholar +1 more source