Results 1 to 10 of about 267,004 (269)

Comparability of calibration strategies for measuring mercury concentrations in gas emission sources and the atmosphere [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
A primary mercury gas standard was developed at Van Swinden Laboratory (VSL) to establish an International System of Units (SI)-traceable reference point for mercury concentrations at emission and background levels in the atmosphere.
I. de Krom   +10 more
doaj   +1 more source

Evaluation of demulsifiers efficiency for coal tar dehydration according to the value of its viscosity reduction

open access: yesХімія, фізика та технологія поверхні, 2023
For the first time, the relationship between the efficiency of dehydration and the value of reducing the viscosity of the coal tar by adding demulsifier has been studied for “water in tar” emulsions. The dewatering of coal tar emulsions was investigated
L. P. Bannikov   +3 more
doaj   +1 more source

Thermophysical properties of nanofluids MWCNT (multi-walled carbon nanotubes) in water for emergency coolant from nuclear reactors

open access: yesBrazilian Journal of Radiation Sciences, 2021
To evaluate the synthesis and characterization of MWCNT (Multi-walled Carbon Nanotubes) with different degrees of functionalization in distilled water. The thermophysical properties (thermal conductivity and viscosity) of these nanofluids were measured ...
Alexandre Melo Oliveira   +3 more
doaj   +1 more source

DENSITY AND VISCOSITY EQUATION OF BLEND OIL [PDF]

open access: yesRomanian Journal of Petroleum & Gas Technology, 2021
Extracted oils and gases have different physical and chemical properties, depending on oil structures. Thus, it is beneficial to create mixtures of oils by combining cheaper crude oils with variants that have better properties (Brent type).
Renata Radulescu, Timur Chis
doaj   +1 more source

ON VISCOSITY AND LUBRICATION. [PDF]

open access: yesJournal of the American Chemical Society, 1908
n ...
Mabery, Charles F., Mathews, J. Howard
openaire   +2 more sources

Ultrasound Treatment of Iota-Carrageenan and Guar Gum

open access: yesТехника и технология пищевых производств, 2023
Hydrocolloids make it possible to produce low-calorie analogues of traditional foods that maintain the original structural properties. Electrophysical methods control viscosity and stabilize food systems.
Kseniya N. Nitsievskaya   +2 more
doaj   +1 more source

Hydrogen Purity Analysis: Suitability of Sorbent Tubes for Trapping Hydrocarbons, Halogenated Hydrocarbons and Sulphur Compounds

open access: yesApplied Sciences, 2019
The ISO 14687-2 standard sets requirements for the purity of the hydrogen that is delivered at refuelling stations. These specifications cover a wide range of impurities and include challenging measurements, mainly due to the very low levels of the ...
Karine Arrhenius   +5 more
doaj   +1 more source

Influence of pectin hydration on internal friction and viscosity of their aqueous solutions

open access: yesНовые технологии, 2019
In the work the effect of hydration on the viscosity and internal friction of pectin solutions has been studied. The dynamic viscosity has been measured on a rotational viscometer, and internal friction on a torsion pendulum with a small vibration ...
Z. N. Khatko   +5 more
doaj   +1 more source

Polyfunctional Modifiers for Bitumen and Bituminous Materials with High Performance

open access: yesAdvances in Materials Science and Engineering, 2018
Over the last decade increase in capacity and the intensity of vehicular traffic has increased manifoldly, including heavy trucks, super singles, and higher tire pressures, resulting in significant increase of dynamic loads on the road surface which in ...
Alim Feizrakhmanovich Kemalov   +4 more
doaj   +1 more source

Investigation of the effect of depressor additives on the rheological properties of oil

open access: yesАлматы технологиялық университетінің хабаршысы, 2021
The article is devoted to the study of physico-chemical properties of oil fields Uzen, Kenkiyak, Martyshi and study the effect of depressor additives on the rheological properties of oil fields Uzen.
A. Sh. Zainullina, A. Zh. Arystan
doaj   +1 more source

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