Results 21 to 30 of about 6,977 (282)

Halanaerobium polyolivorans sp. nov.—A Novel Halophilic Alkalitolerant Bacterium Capable of Polyol Degradation: Physiological Properties and Genomic Insights

open access: yesMicroorganisms, 2023
A search for the microorganisms responsible for the anaerobic degradation of osmoprotectants in soda lakes resulted in the isolation of a novel halophilic and alkalitolerant strain, designated Z-7514T. The cells were Gram-stain-negative and non-endospore-
Yulia Boltyanskaya   +5 more
doaj   +1 more source

Condensation of supersaturated vapors of hydrogen bonding molecules: Ethylene glycol, propylene glycol, trimethylene glycol, and glycerol [PDF]

open access: yes, 1996
The critical supersaturations required for the homogeneous nucleation (rate of 1 drop cm−3 s−1) of ethylene glycol, propylene glycol, trimethylene glycol and glycerol vapors have been measured over wide temperature ranges (e.g., 280–400 K) using an ...
El-Shall, M. Samy, Kane, David B.
core   +2 more sources

Measurement-based Run-to-run Optimization of a Batch Reaction-distillation System [PDF]

open access: yes, 2004
Measurement-based optimization schemes have been developed to deal with uncertainty and process variations. One of the methods therein, labeled NCO tracking, relies on appropriate parameterization of the input profiles and adjusts the corresponding input
Bonvin, Dominique   +5 more
core   +2 more sources

Molecular dynamics simulations for the prediction of the dielectric spectra of alcohols, glycols, and monoethanolamine [PDF]

open access: yes, 2015
The response of molecular systems to electromagnetic radiation in the microwave region (0.3–300 GHz) has been principally studied experimentally, using broadband dielectric spectroscopy.
Cardona, Javier   +3 more
core   +1 more source

The Additive Influence of Propane-1,2-Diol on SDS Micellar Structure and Properties

open access: yesMolecules, 2021
Micellar systems are colloids with significant properties for pharmaceutical and food applications. They can be used to formulate thermodynamically stable mixtures to solubilize hydrophobic food-related substances.
Martina Gudelj   +4 more
doaj   +1 more source

Diacetyl and Other Ketones in e-Cigarette Aerosols: Some Important Sources and Contributing Factors

open access: yesFrontiers in Chemistry, 2021
Background: Concerns over the presence of the diketones 2,4 butanedione (DA) and 2,3 pentanedione (AP) in e-cigarettes arise from their potential to cause respiratory diseases.
Kevin McAdam   +7 more
doaj   +1 more source

New Synthesis Route for PHD Polyols [PDF]

open access: yes, 2011
The synthesis of polyurea dispersion polyols (PHD) was developed using a new route via depolymerization of polyurethane polyureas by a mixture of at least two glycols in the presence of a consumable catalyst, i. e. a secondary aliphatic amine.
Behrendt, Gerhard   +3 more
core   +1 more source

Development of covalent triazine frameworks as heterogeneous catalytic supports [PDF]

open access: yes, 2019
Covalent triazine frameworks (CTFs) are established as an emerging class of porous organic polymers with remarkable features such as large surface area and permanent porosity, high thermal and chemical stability, and convenient functionalization that ...
Krishnaraj, Chidharth   +3 more
core   +1 more source

Electrodeposition of copper – tin alloys from glycol electrolytes

open access: yesЖурнал Белорусского государственного университета: Химия, 2019
Stable ethylene glycol (EG) and propylene glycol (PG) electrolytes containing СuCl2 · 2H2O, SnCl4 · 5H2O and Trilon B have been developed, which provide electrodeposition of Cu – Sn alloy with tin content varying from 34 to 52 at.
Tatsiana N. Vorobyova   +4 more
doaj   +1 more source

Glassy dynamics in mono-, di-, and tri-propylene glycol: From the alpha- to the fast beta-relaxation

open access: yes, 2008
We present a thorough characterization of the glassy dynamics of three propylene glycols (mono-, di- and trimer) by broadband dielectric spectroscopy. By covering a frequency range of more than 15 decades, we have access to the entire variety of dynamic ...
A. Loidl   +61 more
core   +1 more source

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