Results 51 to 60 of about 1,220,716 (286)

Educational process improvement of oil and gas complex specialists training

open access: yesВестник Самарского государственного технического университета. Серия: Психолого-педагогические науки, 2016
In this article problems of thermodynamic calculation of the driving gas-turbine engines working at natural gas are considered. The mathematical model of the accounting of heatphysical parameters of products of combustion of fuel gas is created, the ...
Irina V. Vereshchagina   +1 more
doaj  

Thermodynamic properties of ions in solution - activity calculation

open access: yesVértices, 2011
Due to the interaction between ions in solution, the concept of concentration is inadequate. Thus, the term activity is a more appropriate concept, as it takes into account the activity coefficient of ions, which are very well estimated in dilute ...
Clenilson da Silva Sousa Junior   +1 more
doaj   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

open access: yesFEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova   +2 more
wiley   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

open access: yesFEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard   +12 more
wiley   +1 more source

High-Temperature Gasification of Chlorinated Hydrocarbons: Thermodynamic Calculation

open access: yesWaste
Conventional thermal disposal of chlorinated hydrocarbon (CHC) waste poses high risks of dioxin, furan, chlorine, and phosgene formation, while plasma destruction remains energy-intensive. This work determines the optimal thermodynamic conditions for the
Sergey M. Frolov   +2 more
doaj   +1 more source

Calculation of thermodynamic properties of water by the CPA equation of state

open access: yesNatural Gas Industry B, 2017
An appreciable amount of formation water exists inevitably in the porous media of reservoirs, but the existence of water is often neglected in the usual calculation of phase equilibrium.
Ping Guo   +3 more
doaj   +1 more source

Solubility equilibria. From data optimization to process simulation [PDF]

open access: yes, 2002
Models that accurately predict solid–solute phase equilibria in aqueous electrolyte solutions are of mounting importance for numerous industrial processes, especially those operating at high temperatures, pressures, and concentrations.
Königsberger, E.
core  

calculation

open access: yes, 2023
This program calculates urban vitality. By inputting parameter data, urban vitality can be calculated based on the calculation formula.
zhao (16977453)
core   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Effect of gases released during solidification of castings on microstructure of alloys

open access: yesЛитьë и металлургия, 2020
Thermodynamic calculation of formation of spherical gas bubbles different in water – wetting on flat surfaces by metal melt is made. This process consists of two stages.
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

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