Results 31 to 40 of about 39,917 (237)

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

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

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

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

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  

Phase Equilibrium and Optimization Tools: Application for Enhanced Structured Lipids for Foods [PDF]

open access: yes, 2011
Solid-liquid phase equilibrium modeling of triacylglycerols mixtures is essential for lipids design. Considering the α polymorphism and liquid phase as ideal, the Margules 2-suffix excess Gibbs energy model with predictive binary parameter correlations ...
Carrillo Le Roux, Galo   +2 more
core   +2 more sources

A Computationally Efficient Multi-Scale Thermal Modelling Approach for PBF-LB/M Based on the Enthalpy Method

open access: yesMetals, 2022
Laser-Based Powder Bed Fusion is one of the most widely used additive manufacturing processes, mainly due to its high-quality output. End users would greatly benefit from a virtual simulation of the process; however, the modelling of the process is very ...
Panagiotis Stavropoulos   +4 more
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

Molecular patterns in the thermophysical properties of pyridinium ionic liquids as phase change materials for energy storage in the intermediate temperature range

open access: yesJournal of Non-Crystalline Solids: X, 2022
Phase change materials (PCMs) that store and release thermal energy via a reversible phase transition in the intermediate temperature range are a promising solution for renewable energy storage as they can be durable and inexpensive.
Karolina Matuszek   +4 more
doaj   +1 more source

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