Results 21 to 30 of about 263,108 (341)

Experimental and modeling study of the low-temperature oxidation of large alkanes [PDF]

open access: yes, 2008
This paper presents an experimental and modeling study of the oxidation of large linear akanes (from C10) representative from diesel fuel from low to intermediate temperature (550-1100 K) including the negative temperature coefficient (NTC) zone.
Battin-Leclerc, Frédérique   +4 more
core   +3 more sources

Modeling and Prediction of Coal Ash Fusion Temperature based on BP Neural Network

open access: yesMATEC 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
doaj   +1 more source

Gold Catalyzed Multicomponent Reactions beyond A3 Coupling

open access: yesMolecules, 2018
The preparation of complex architectures has inspired the search for new methods and new processes in organic synthesis. Multicomponent reactions have become an interesting approach to achieve such molecular diversity and complexity.
Renso Visbal   +3 more
doaj   +1 more source

Crown Ether-Modified Clays and their Polystyrene Nanocomposites [PDF]

open access: yes, 2002
Crown ether-modified clays were obtained by the combination of sodium and potassium clays with crown ethers and cryptands. Polystyrene nanocomposites were prepared by bulk polymerization in the presence of these clays.
Jao, Hongyang   +3 more
core   +2 more sources

Metabolism of Butoxyethanol in excised human skin in vitro [PDF]

open access: yes, 2008
Glycol ethers are widely used in industrial and household applications because their chemical and physical properties make them versatile solvents, miscible with both water and organic media.
Traynor, M.J.   +2 more
core   +1 more source

Single-pass transformation of syngas into ethanol with high selectivity by triple tandem catalysis

open access: yesNature Communications, 2020
Direct synthesis of ethanol from non-petroleum carbon resources via syngas (CO/H2) is a highly attractive but challenging target. Here, the authors report a triple tandem catalytic system for single-pass conversion of syngas into ethanol with selectivity
Jincan Kang   +7 more
doaj   +1 more source

Comparison of polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in the serum of hypothyroxinemic and euthyroid dogs. [PDF]

open access: yes, 2017
ObjectiveTo determine the profile of 14 polybrominated diphenyl ethers (PBDEs) and 23 polychlorinated biphenyls (PCBs) in serum of domestic canines and whether this was predictive of thyroid hormone status.SamplesSerum samples were collected from 51 ...
Kass, Philip   +3 more
core   +3 more sources

Cu/ZrO2 Catalyst Modified with Y2O3 for Effective and Stable Dehydration of Glycerol to Acetol

open access: yesMolecules
Glycerol is a main by-product of biodiesel production, and its further processing is essential for the biorefinery. In this paper, a highly active and stable catalyst for the catalytic dehydration of glycerol to acetol is obtained by modifying a Cu-Zr ...
Zhoubing Liang   +5 more
doaj   +1 more source

Catalytic tetrahydropyranylation of phenols and alcohols using vanadium(V)-substituted polyoxomolybdates [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
Alcohols and phenols were tetrahydropyranylated in the presence of H7[PMo8V4O40] in good to excellent yields in acetonitrile and under solventfree reaction conditions.
Gharib Ali, Jahangir Manouchehr
doaj   +1 more source

Friedel–Crafts reaction of indoles for (3-indolyl)methyl ethers under basic condition: Application in unsymmetrical bis(indolyl)methanes

open access: yesResults in Chemistry, 2021
An efficient process to prepare (3-indolyl)methyl ethers from various indoles and benzaldehydes under basic conditions was reported. The effects of bases, solvents were investigated.
Zubiao Zheng   +6 more
doaj   +1 more source

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