Results 251 to 260 of about 146,363 (308)

Heatwaves and water scarcity in Pakistan: a climate-health emergency demanding global attention. [PDF]

BMJ Glob Health
Latif B, Ahsaan F, Latif A.
europepmc   +1 more source

Performance Optimization and Carbon Reduction Potential of Bamboo Biochar for Lightweight Artificial Aggregates. [PDF]

Materials (Basel)
Liu H, Bu L, Wang Y, Chen M, Chen D.
europepmc   +1 more source

Identification of Adiabatic Temperature Rise Characteristics for Mass Concrete Using the Physics-Informed Neural Network. [PDF]

Materials (Basel)
Lee JM, Lee CJ, Jeong W.
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Heat of Hydration for Cement

Transportation Research Record: Journal of the Transportation Research Board, 2011
The heat of hydration of hydraulic cements depends on a complex set of phase dissolution and precipitation reactions following the addition of water. Heat of hydration is currently measured in one of two ways: acid dissolution of the raw cement and a hydrated cement after 7 days or isothermal calorimetry.
Paul Stutzman, Stefan Leigh, Kendall Dolly   +2 more
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Heats of formation of some hydrates

Canadian Journal of Chemistry, 1976
Heats of formation of hydrates may be measured by dissolving the hydrate and the corresponding anhydrate in water to attain the same final concentration and measure the difference in heats of solution.Measurements were made at 0 °C in a modified Bunsen ice calorimeter, well insulated, and surrounded with an ice–water mixture.The data obtained are a ...
Alan Phillipson, Gordon R. Finlay
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Heat capacity and heat of dissociation of methane hydrates

AIChE Journal, 1988
AbstractThe objective of this study was to determine the heat capacity and heat of dissociation of methane hydrates. A technique has been devised which circumvents the two major problems encountered in measuring gas hydrate heat capacity: the need to impose a mechanical pressure during the measurement and the need to have an absolutely pure hydrate ...
Roger M. Rueff, E. Dendy Sloan, Victor F. Yesavage   +2 more
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Heat of hydration of 2-nitropyrrole

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1958
1. The shift in the ultraviolet absorption maximum of 2-nitropyrrole resulting from change in solvent from glacial acetic acid to dilute acetic acid is associated with hydration of the solute molecules; the heat of hydration has a value of from −1.5 to − 1.7 kcal/mole. 2.
V. M. Belikov, S. G. Mairanovskii, E. N. Safonova, S. S. Novikov   +3 more
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Hydration Heats of Zeolites For Evaluation of Heat Exchangers

Journal of Thermal Analysis and Calorimetry, 2001
The enthalpy of hydration of purified clinoptilolite from Beli Plast, Bulgaria, and various cation-exchanged types such as Na-, K-, Ca- and Mg-clinoptilolite was determined by the adiabatic water-vapor absorption calorimeter. The hydration enthalpy becomes more exothermic in the sequence K, Na, Ca, Mg depending on hydration energy values of exchanged ...
N. Petrova, T. Mizota, K. Fujiwara
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