Results 1 to 10 of about 373,225 (319)

Sequential Condensation and Hydrodeoxygenation Reaction of Furfural-Acetone Adduct over Mix Catalysts Ni/SiO2 and Cu/SiO2 in Water

open access: yesIndonesian Journal of Chemistry, 2018
Sequential condensation and hydrodeoxygenation reaction were perform using autoclave batch reactor in the presence of water as a solvent. The condensation of furfural and acetone was performed using MgO catalyst followed by hydrodeoxygenation using mix ...
Siti Mariyah Ulfa   +2 more
doaj   +1 more source

A Heat Exchanger with Water Vapor Condensation on the External Surface of a Vertical Pipe

open access: yesEnergies, 2022
The paper is concerned with water vapor condensation on vertical pipes. The vertical position of pipes in a condenser is not discussed very often. Its application has a number of particularities in terms of the numerical determination of heat transfer ...
Petr Kracík   +3 more
doaj   +1 more source

Experimental characterization of the COndensation PArticle counting System for high altitude aircraft-borne application [PDF]

open access: yes, 2008
A characterization of the ultra-fine aerosol particle counter COPAS (COndensation PArticle counting System) for operation on board the Russian high altitude research aircraft M-55 Geophysika is presented. The COPAS instrument consists of an aerosol inlet
Lepukhov, B.   +26 more
core   +1 more source

Improved General Correlation for Condensation in Channels

open access: yesInventions, 2022
The present author’s general correlation for condensation in mini and macro channels which has been verified with an extreme range of data was further evaluated at quality x close to 1. Large deviations were found at quality x ≥ 0.99. The correlation was
Mirza M. Shah
doaj   +1 more source

(5-Hydroxy-3-methyl-5-trifluoromethyl-4,5-dihydro-1H-pyrazol-1-yl)(2-hydroxyphenyl)methanone

open access: yesIUCrData, 2016
In the title compound, C12H11F3N2O3, the hydroxyphenyl ring is twisted by 35.42 (11)° from the plane of the pyrazoline ring. The keto O atom is involved in two intramolecular O—H...O hydrogen bonds, which generate S(6) loops.
Kuvondik G. Avezov   +4 more
doaj   +1 more source

Condensation Targeter II: modelling surface relative humidity to predict mould growth in dwellings

open access: yes, 1999
Condensation and mould growth are reported as being problems in an estimated 4.2 million dwellings in England, resulting in poor health for the occupants and substantial damage to the fabric of the building.
Oreszczyn, T.   +3 more
core   +1 more source

Synthesis and Properties of Condensed Lumazine-Ringsystems

open access: yesPteridines, 2002
1,3-Dimethyllumazine-6,7-diamine (1) and its monomethyl -(3,4) and monophenylamino (5) derivates are interesting starting materials for the synthesis of imidazo[4,5-g] (6-22) and pyrazino[2,3-g]lumazines (23-26).
Abou-Hadeed Khaled, Pfleiderer Wolfgang
doaj   +1 more source

Synthesis, Experimental and Density Functional Theory (DFT) Studies on Solubility of Camptothecin Derivatives

open access: yesMolecules, 2018
Two camptothecin derivatives, 10-cyclohexyl-7-methyl-20(S)-camptothecin and 7-methyl-10-morpholino-20(S)-camptothecin, were synthesized and their differences in solubility were investigated using four chosen solvent systems.
Chin-Hung Lai   +3 more
doaj   +1 more source

Consecutive Three-Component Synthesis of Donor-Substituted Merocyanines by a One-Pot Suzuki–Knoevenagel Condensation Sequence

open access: yesOrganic Materials, 2020
The consecutive three-component Suzuki-Knoevenagel condensation (SuKnoCon) synthesis is an efficient, modular one-pot synthetic approach to donor-substituted merocyanines with carboxylic acid functionality.
Tim Meyer, Thomas J. J. Müller
doaj   +1 more source

Expeditious, mechanochemical synthesis of BODIPY dyes

open access: yesBeilstein Journal of Organic Chemistry, 2013
BODIPY dyes have been synthesized under solvent-free or essentially solvent-free conditions, within about 5 minutes in an open-to-air setup by using a pestle and mortar, with yields that are comparable to those obtained via traditional routes that ...
Laramie P. Jameson, Sergei V. Dzyuba
doaj   +1 more source

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