Results 21 to 30 of about 40,257 (293)

First and Second Dissociation Enthalpies in Bi-Component Crystals Consisting of Maleic Acid and L-Phenylalanine

open access: yesMolecules, 2021
The energetics of the stepwise dissociation of a A:B2 bi-component crystal, according to A:B2(cr) → A:B(cr) + B(cr) and A:B(cr) → A(cr) + B(cr), was investigated using MA:Phe2 and MA:Phe (MA = maleic acid; Phe = L-phenylalanine) as model systems.
Inês O. Feliciano   +4 more
doaj   +1 more source

Thermodynamics and kinetics of the Mg65Cu25Y10 bulk metallic glass forming liquid [PDF]

open access: yes, 1998
The thermodynamics and kinetics of the bulk metallic glass forming Mg65Cu25Y10 liquid were investigated using differential scanning calorimetry and three-point beam bending. The experiments lead to the determination of the thermodynamic functions as well
Busch, R., Johnson, W. L., Liu, W.
core   +1 more source

Solution thermodynamics of methocarbamol in some ethanol + water mixtures

open access: yesQuímica Nova, 2012
Apparent thermodynamic functions, Gibbs energy, enthalpy and entropy of solution and mixing, for methocarbamol in ethanol + water mixtures, were evaluated from solubility data determined at temperatures from 293.15 K to 313.15 K and from calorimetric ...
Katia C. Mercado   +4 more
doaj   +1 more source

Thermodynamic properties of L-menthol in crystalline and gaseous states

open access: yesТонкие химические технологии, 2020
Objectives. Menthol causes a cooling sensation and reduces the nerve activity when it is applied locally, ingested, or inhaled. This feature explains its extensive use as both an aromatizer and a flavoring agent in food manufacturing, tobacco industry ...
A. V. Blokhin, Ya. N. Yurkshtovich
doaj   +1 more source

Spontaneity of nuclear fusion: a qualitative analysis via classical thermodynamics [version 3; peer review: 3 approved]

open access: yesOpen Research Europe, 2021
Background: So far the feasibility of nuclear reactions has been studied only through the evaluation of the reaction rate, which gives us information about the kinetics, while the thermodynamic analysis has been limited to evaluations of the change in ...
Silvano Tosti
doaj   +1 more source

Molecular Dynamics Simulations of Lead and Lithium in Liquid Phase [PDF]

open access: yes, 2011
Pb17Li is today a reference breeder material in diverse fusion R&D programs worldwide. Extracting dynamic and structural properties of liquid LiPb mixtures via molecular dynamics simulations, represent a crucial step for multiscale modeling efforts ...
Cuesta Lopez, Santiago   +2 more
core   +3 more sources

Laser desorption/ionization mass spectrometry of L-thyroxine (T4) using combi-matrix of α-cyano-4-hydroxycinnamic acid (CHCA) and graphene

open access: yesJournal of Analytical Science and Technology, 2022
An optimal combi-matrix for MALDI-TOF mass spectrometry was presented for the analysis of L-thyroxine (T4) in human serum. For the selection of the optimal combi-matrix, several kinds of combi-matrices were prepared by mixing the conventional organic ...
Joo-Yoon Noh   +5 more
doaj   +1 more source

New insight into the melting process of PA 6 fibers: Determining tension-induced changes of enthalpy by HTA-assisted DSC analysis

open access: yesPolymer Testing, 2023
Differential scanning calorimetry (DSC) measurements of fibers are affected from insulation effects originating from the specific specimen geometry with poor contact between the material sample and the crucible bottom.
Stefan Oberparleiter, Roman Lackner
doaj   +1 more source

Noncontact modulation calorimetry of metallic liquids in low Earth orbit [PDF]

open access: yes, 1997
Noncontact modulation calorimetry using electromagnetic heating and radiative heat loss under ultrahigh-vacuum conditions has been applied to levitated solid, liquid, and metastable liquid samples.
Fecht, H.-J.   +3 more
core   +1 more source

PREDICTION OF PHYSICOCHEMICAL PROPERTIES BY ARTIFICIAL NEURAL NETS

open access: yesAvances en Ciencias e Ingeniería, 2023
In this study, we employed the Artificial Neural Network-Group COSMO sigma profile method to estimate critical pressure, critical temperature, enthalpy of fusion, and melting temperature of pure chemical compounds.
Arturo Alvarez, Víctor H. Alvarez
doaj  

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