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Comparative evaluation of the energy and economic efficiency of vapor compression heat pumps in modernization of large chemical and oil refining industries. Part 1 [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2023
The question of the feasibility of increasing the energy efficiency of large chemical and oil refining industries by replacing furnace heaters of process heat carriers and raw materials with vapor compression heat pumps is considered.
V. L. Yusha   +2 more
doaj   +1 more source

Comparative evaluation of the energy and economic efficiency of vapor compression heat pumps in modernization of large chemical and oil refining industries. Part 2 [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2023
The question of the expediency of increasing the energy efficiency of a large chemical and oil refining industry by using process heat carriers and raw materials as heaters of vapor compression heat pumps based on systems for recuperating heat process ...
V. L. Yusha   +2 more
doaj   +1 more source

On the relationship of digital technological platforms of large chemical and oil refining industries with the technical appearance of the compressor equipment fleet [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2023
Issues related to possible problems in the implementation of digitalization programs for large enterprises for the processing of natural hydrocarbon and mineral raw materials, due to the discrepancy between the technical level of the existing fleet of ...
V. L. Yusha   +4 more
doaj   +1 more source

Excavation support – geotechnical failures in the context of design and execution errors as well as formal and economic conditions [PDF]

open access: yesMATEC Web of Conferences, 2019
Deep excavations carried out in the difficult ground conditions, demand particular care both in a design and execution phase, as well as reliably conducted supervision by personnel having the appropriate skill and experience, but also well-defined ...
Maca Natalia, Sierant Jakub
doaj   +1 more source

Hydrocarbon chemistry in the atmosphere of a Warmer Exo-Titan

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Hosting a ∼1.5 bar N2 atmosphere and reducing atmospheric composition, Titan has the energy sources needed to drive disequilibrium chemistry and hosts an aerosol layer which shields the surface from incident UV radiation. This world draws parallels to an
Danica Adams   +3 more
doaj   +1 more source

Wavelike perturbations in Titan’s ionosphere and their compositional variation: A preliminary survey of Cassini Ion Neutral Mass Spectrometer measurements

open access: yesEarth and Planetary Physics, 2022
Wavelike perturbations in the ionosphere of Titan, the largest satellite of Saturn, are explored based on the Cassini Ion Neutral Mass Spectrometer (INMS) measurements.
ShiQi Wu   +5 more
doaj   +1 more source

The RMS Titanic [PDF]

open access: yesOccupational Medicine, 2012
Abstract In ‘The RMS Titanic’, the authors explore the story of the famous Titanic cruise liner. They reflect on the magnitude of the ship, along with the hazardous conditions of its construction, among other things.
Ken, Addley, Paul, McKeagney
openaire   +2 more sources

Adaptation of the performance control system of a technological piston hydrogen compressor to unstable operating conditions [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
Issues related to possible problems of the feasibility of operating the existing system for regulating the performance of a technological piston hydrogen compressor at a large chemical production and the relevance of its modernization are considered ...
V. L. Yusha   +3 more
doaj   +1 more source

The Tides of Titan

open access: yesScience, 2012
Getting to Know Titan Gravity-field measurements provide information on the interior structure of planets and their moons. Iess et al. (p. 457 ; published online 28 June) analyzed gravity data from six flybys of Saturn's moon, Titan, by the ...
L. Iess   +9 more
openaire   +5 more sources

Titanates and Titanate-Metal Compounds in Biological Contexts [PDF]

open access: yesInternational Journal of Medical Nano Research, 2015
Metal ions are notorious environmental contaminants, some causing toxicity at exquisitely low (ppm-level) concentrations. Yet, the redox properties of metal ions make them attractive candidates for bio-therapeutics. Titanates are insoluble particulate compounds of titanium and oxygen with crystalline surfaces that bind metal ions; these compounds offer
Yen-Wei, Chen   +4 more
openaire   +2 more sources

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