Results 21 to 30 of about 819,250 (296)

Universal parameters of bulk-solvent masks [PDF]

open access: yesActa Crystallographica Section A Foundations and Advances
The bulk solvent is a major component of biomacromolecular crystals that contributes significantly to the observed diffraction intensities. Accurate modelling of the bulk solvent has been recognized as important for many crystallographic calculations. Owing to its simplicity and modelling power, the flat (mask-based) bulk-solvent model is used by most ...
Alexandre Urzhumtsev   +2 more
openaire   +3 more sources

Predicting Solvation Free Energies Using Parameter-Free Solvent Models [PDF]

open access: yesThe Journal of Physical Chemistry B, 2016
We present a new approach for predicting solvation free energies in nonaqueous solvents. Utilizing the corresponding states principle, we estimate solvent Lennard-Jones parameters directly from their critical points. Combined with atomic solutes and the pressure corrected three-dimensional reference interaction site model (3D-RISM/PC+), the model gives
Misin, Maksim   +2 more
openaire   +3 more sources

Evolution of dispersion of carbon nanotubes in Polyamide 11 matrix composites as determined by DC conductivity [PDF]

open access: yes, 2012
Double-walled Carbon NanoTubes (DWCNTs) have been dispersed in a Polyamide 11 (PA11) matrix by two routes: in the solvent way, Polyamide 11 was first dissolved in its solvent to ensure a liquid state dispersion of carbon nanotubes by ultrasonic way; in ...
Aridon, Gwenaëlle   +5 more
core   +2 more sources

A General Correlation between the Temperature-Dependent Solubility and Solute and Solvent Molar Masses in Binary n-Alkane Mixtures [PDF]

open access: yes, 2018
An increasingly popular solution in the oil-industry is long-distance sub-sea transportation of unprocessed well-streams. This will commonly expose the oil to temperatures significantly below the reservoir temperature, and possibly below the wax ...
Johnsen, Sverre Gullikstad
core   +2 more sources

The determination of solubility parameters of solvents and polymers by means of correlations with other physical quantities [PDF]

open access: yes, 1975
Correlations of solvent solubility parameters with molar attraction constants and with properties like surface tension, dipole moment, and index of refraction have been explored.
Koenhen, D.M., Smolders, C.A.
core   +3 more sources

Optimization of extraction conditions of antioxidant activity from zingiber zerumbet oleoresin [PDF]

open access: yes, 2011
The health promoting capacity of natural antioxidant from phytochemicals has increase attention from researchers and public. However, processing is affecting the activity and the bioavailability of bioactive compounds.
Abdul Aziz, Ramlan   +4 more
core   +1 more source

Metastable liquid-liquid and solid-liquid phase boundaries in polymer-solvent-nonsolvent systems [PDF]

open access: yes, 1997
In general liquid-liquid demixing processes are responsible for the porous morphology of membranes obtained by immersion precipitation. For rapidly crystallizing polymers, solid-liquid demixing processes also generate porous morphologies.
Berg, J.W.A. van den   +3 more
core   +2 more sources

Investigations of the reactivity of pyridine carboxylic acids with diazodiphenylmethane in protic and aprotic solvents. [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Rate constants for the reaction of diazodiphenylmethane with isomeric pyridine carboxylic acids were determined in chosen protic and aprotic solvents at 30 °C, using the well known UV spectrophotometric method.
ALEKSANDAR D. MARINKOVIC   +3 more
doaj  

Screening the effect of four ultrasound-assisted extraction parameters on hesperidin and phenolic acid content of aqueous citrus pomace extracts [PDF]

open access: yes, 2018
Polyphenols of citrus by-products, due to their antioxidant and antimicrobial activities, could be valorized by pharmaceutical and food industries, adding a value to the citrus processing companies.
Bowyer, Michael C.   +6 more
core   +2 more sources

Liquid-Phase Exfoliation of Biochars in Green Solvents and Correlation with Solvent Parameters [PDF]

open access: yes, 2021
Liquid-phase exfoliation (LPE) is a process frequently used to overcome the interactions between layers in layered materials to produce small sheets of material, with remarkable properties and high value applications. Materials are prepared via direct or indirect sonication in a solvent that must be able to effectively disperse and stabilize the sheets
Juliana Vidal   +5 more
openaire   +1 more source

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