Results 21 to 30 of about 79,647 (266)

Unique extension of the maximum entropy principle to phase coexistence in heat conduction

Physical Review Research, 2022
The maximum entropy principle determines the values of thermodynamic variables in thermally isolated equilibrium systems. This paper extends the principle to a variational principle that applies to liquid–gas coexistence in heat conduction.
Naoko Nakagawa, Shin-ichi Sasa
doaj   +1 more source

Influence of reaction equilibrium on thermodynamic model calculations of quasi-static pressure for confined TNT explosions

Baozha yu Chongji
The quasi-static pressure thermodynamic model for confined explosions provides an effective characterization of pressure evolution with mass-to-volume ratio m/V, and derivation of physical quantities such as gas adiabatic index from products and ...
Yang HUANG, Suwen CHEN, Jian ZHOU
doaj   +1 more source

The Stumbling Block of the Gibbs Entropy: the Reality of the Negative Absolute Temperatures

EPJ Web of Conferences, 2016
The second Tisza-Callen postulate of equilibrium thermodynamics states that for any system there exists a function of the system extensive parameters, called entropy, defined for all equilibrium states and having the property that the values assumed by ...
Anghel Dragoş-Victor
doaj   +1 more source

A Gibbs free energy minimization based model for liquid–liquid equilibrium calculation of a system containing oil, brine, and surfactant

Oil & Gas Science and Technology, 2020
Accurate and reliable phase equilibrium calculations of microemulsion systems are of great importance. This study deals with the thermodynamic modeling of Liquid–Liquid Equilibrium (LLE) of a system including oil (n-decane), brine (containing CaCl2 salt),
Hosseini Mostafa, Mohammadi Amir H.
doaj   +1 more source

THERMODYNAMIC PROPERTIES OF BARU FRUITS (Dipteryx alata Vogel) [PDF]

Engenharia Agrícola, 2017
: The objective of this study was to determine and evaluate the thermodynamic properties for different equilibrium moisture contents in baru fruits (Dipteryx alata Vogel), using the direct static method to obtain the experimental data.
Osvaldo Resende, Daniel E. C. DE Oliveira, Lílian M. Costa, Weder N. Ferreira Júnior   +3 more
doaj   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Thermodynamic stability of the stationary Lifshitz black hole of new massive gravity

European Physical Journal C: Particles and Fields, 2019
In this paper we investigate the thermodynamic properties of the stationary Lifshitz black hole solution of New Massive Gravity. We study the thermodynamic stability from local and global point of view.
K. Kolev, K. Staykov, T. Vetsov
doaj   +1 more source

Activated Carbon from Spent Brewery Barley Husks for Cadmium Ion Adsorption from Aqueous Solution

Indonesian Journal of Chemistry, 2018
This study investigated the feasibility of using acid activated carbon prepared from brewery spent barley husks for the adsorption of cadmium from aqueous solution.
Ilesanmi Osasona, Kayode Aiyedatiwa, Jonathan Johnson, Oluwabamise Lekan Faboya   +3 more
doaj   +1 more source

Thermodynamic resources in continuous-variable quantum systems

npj Quantum Information, 2021
Thermodynamic resources, beyond their well-known usefulness in work extraction and other thermodynamic tasks, are often important also in tasks that are not evidently thermodynamic.
Varun Narasimhachar, Syed Assad, Felix C. Binder, Jayne Thompson, Benjamin Yadin, Mile Gu   +5 more
doaj   +1 more source

Xylooligosaccharides production from lignocellulosic biomass: Equilibrium kinetics and thermodynamic studies of endo-1,4-β-D-xylanase adsorbed onto periodic mesostructured materials

Materials Science for Energy Technologies, 2021
We report the adsorption equilibrium, kinetics and thermodynamic studies of endo-1,4-β-D-xylanase adsorption onto ordered mesoporous matrices of silica, carbon, and zirconia.
G. Shivudu, T.V.R. Mohan, S. Khan, K. Chandraraj, P. Selvam   +4 more
doaj   +1 more source