Results 11 to 20 of about 267,431 (292)

THERMODYNAMIC PROPERTIES OF WHITE BEAN GRAINS FOR DIFFERENT EQUILIBRIUM WATER CONTENTS

open access: yesEngenharia Agrícola, 2021
In drying processes and in the storage of agricultural products, the study of thermodynamic properties is indispensable in the search for solutions to issues of stability and optimization of the conditions of agro-industrial processes.
Renata C. Campos   +4 more
doaj   +1 more source

The kinetic glass transition of the Zr46.75Ti8.25Cu7.5Ni10Be27.5 bulk metallic glass former-supercooled liquids on a long time scale [PDF]

open access: yes, 1998
Viscosity and enthalpy relaxation from the amorphous state into the supercooled liquid state was investigated in the bulk metallic glass forming Zr46.75Ti8.25Cu7.5Ni10Be27.5 alloy below the calorimetric glass transition.
Busch, R., Johnson, W. L.
core   +1 more source

Entropy and enthalpy for triggering cutaneous erythema [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2015
The molar entropy (ΔS) and molar enthalpy (ΔH) for the denaturation event that triggers cutaneous erythema was determined to be ΔS = 190 J/(mole K) and ΔH = 146.9 × 103 J/mole. The experiment involved placing heated water against the skin of the forearm,
Steven L. Jacques, Joseph T. Walsh
doaj   +1 more source

Ab initio study on the effects of transition metal doping of Mg2NiH4 [PDF]

open access: yes, 2007
Mg2NiH4 is a promising hydrogen storage material with fast (de)hydrogenation kinetics. Its hydrogen desorption enthalpy, however, is too large for practical applications.
Brocks, G.   +2 more
core   +10 more sources

Evaluation of the intramolecular hydrogen bond enthalpy by means of specialized quantum chemical methods [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
By means of the MNDO/H, I-MNDO, MNDO/HB and MNDO/M methods, the values of the enthalpy of intramolecular hydrogen bond (IHB) formation for series of substances have been computed.
Pankratov Alexei N., Shalabay Alexei V.
doaj   +1 more source

Influence of mechanical activation and heat treatment on magnetic properties of nanostructured mixture Ni85.8Fe10.6Cu2.2W1.4 [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2019
The mechanical activation of the Ni85.8Fe10.6Cu2.2W1.4 powder mixture in the time intervals of 30-210 min in combination with thermal treatment at 393-873 K resulted in microstructural changes, forming the nanostructured mixture of the same composition ...
Vasić M.M.   +6 more
doaj   +1 more source

Exploring the Biosorption of Methylene Blue Dye onto Agricultural Products: A Critical Review

open access: yesSeparations, 2022
Due to their higher specific area and, in most cases, higher adsorption capacity, nanomaterials are noteworthy and attractive adsorbents. Agricultural products that are locally available are the best option for removing methylene blue (MB) dye from ...
Manish Kumar Sah   +7 more
doaj   +1 more source

Effect of base–acid properties of the mixtures of water with methanol on the solution enthalpy of selected cyclic ethers in this mixture at 298.15 K [PDF]

open access: yes, 2015
The enthalpies of solution of cyclic ethers: 1,4- dioxane, 12-crown-4 and 18-crown-6 in the mixture of water and methanol have been measured within the whole mole fraction range at T = 298.15 K.
A Wakisaka   +56 more
core   +2 more sources

Heat Capacities and Enthalpies of Normal Alkanes in an Ideal Gas State

open access: yesEnergies, 2021
The reference literature contains data on the ideal gas-phase heat capacities and enthalpies of substances obtained experimentally. In this brief report, the highly accurate and simple unified analytical dependences of the heat capacity and enthalpy of ...
Nikolai M. Kuznetsov, Sergey M. Frolov
doaj   +1 more source

Carbonyl Emissions in E-cigarette Aerosol: A Systematic Review and Methodological Considerations

open access: yesFrontiers in Physiology, 2018
Carbonyl emissions from tobacco cigarettes represent a substantial health risk contributing to smoking-related morbidity and mortality. As expected, this is an important research topic for tobacco harm reduction products, in an attempt to compare the ...
Konstantinos E. Farsalinos   +3 more
doaj   +1 more source

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