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581
The Characteristics of Methane Combustion Suppression by Water Mist and Its Engineering Applications
Published 2017-10-01“…The flame was extinguished with water mist endothermic cooling. However, the annular regions of water vapor around the fire played a vital role in flame extinction. …”
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582
Impact of Sinapic Acid on Bovine Serum Albumin Thermal Stability
Published 2024-01-01“…The thermal stability of bovine serum albumin (BSA) in Tris buffer, as well as the effect of sinapic acid (SA) on protein conformation were investigated via calorimetric (differential scanning microcalorimetry—μDSC), spectroscopic (dynamic light scattering—DLS; circular dichroism—CD), and molecular docking approaches. μDSC data revealed both the denaturation (endotherm) and aggregation (exotherm) of the protein, demonstrating the dual effect of SA on protein thermal stability. …”
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583
Tailoring order–disorder temperature and microwave dielectric properties of Ba[(Co0.6Zn0.4)1/3Nb2/3]O3 ceramics
Published 2016-03-01“…To–d was determined to be between 1425 and 1450 °C by a quenching method. The endothermic peak in the DTA curve shows the order–disorder transition. …”
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584
Impact of Surface Chemistry on the Removal of Indigo Carmine Dye Using Apricot Stone Active Carbon
Published 2007-06-01“…Studies of the process at 30, 50 and 70°C demonstrated that adsorption was endothermic. The effects of cations, e.g. K + , Na + , Ca 2+ , Mg 2+ and Al 3+ , on dye removal were investigated. …”
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585
Phase Transitions in Boron Carbide
Published 2023-10-01“…Phase transitions known to date have been identified due to significant changes of properties: (1) The phase transition near the chemical composition B<sub>8</sub>C by clear change of the electronic structure; (2) the endothermic temperature-dependent phase transition at 712 K according to the change of specific heat; (3) the high-pressure phase transition at 33.2 GPa by the drastic change of optical appearance from opacity to transparency. …”
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586
Adsorption in a binary system of Pb (II) and Ni (II) using lemon peels
Published 2020-06-01“…Thermodynamic parameters suggest that the process is exothermic for Ni (II) and endothermic for Pb (II), and irreversible. The binary study showed that there is no competition for active sites between the ions. …”
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587
Improvement adsorption capacity of methylene blue onto modified Tamazert kaolin
Published 2017-12-01“…The thermodynamic study revealed that the adsorption process was spontaneous, endothermic, and the positive value of Δ S ∘ indicated the affinity of MB molecules to the adsorbent surface. …”
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588
Impact of Cd+2 substitutions on structural and mechanical properties of Co0.6Ni0.4-xCdxFe2O4 (0.00≤ x≤0.40) system
Published 2023-11-01“…TGA/DTA analysis confirmed the reaction is endothermic in nature and the process completion temperature around 714.24oC is good for annealing the prepared ferrite powder. …”
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589
Efficient Adsorption of Chromium(VI) Ions from Aqueous Solution onto a Low-Cost Adsorbent Developed from (Wood Apple) Shell
Published 2010-07-01“…Thermodynamic parameters such as the standard enthalpy (ΔH 0 ), the Gibbs' free energy (ΔG 0 ) and the standard entropy (ΔS 0 ) were evaluated and indicated that the sorption process was spontaneous and endothermic in nature. The results demonstrated that wood apple shell activated carbon may be effectively used for the inexpensive removal of Cr(VI) ions from aqueous solution.…”
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590
Studies on the Biosorption of Textile Dyes from Aqueous Solutions Using (L.) Leaf Sheath Fibres
Published 2006-07-01“…Consequently, the adsorption of dyes onto P. oceanica biomass was favourable, endothermic and spontaneous.…”
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591
A Proposal for a Simplified Systematic Procedure for the Selection of Electric Motors for Land Vehicles with an Emphasis on Fuel Economy
Published 2023-03-01“…The design of the propulsion system of an electric vehicle, although similar in principle to that of a conventional endothermic engine, requires a change in vision. Indeed, the main problem in an electric vehicle is its range, which depends not only on the weight of the vehicle but also on the type of powertrain, type of transmission and engine, several factors that are difficult to assess at an early stage. …”
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592
Removal of Hexavalent Chromium by Using Sustainable Green Materials as Low-Cost Adsorbents
Published 2023-01-01“…Thermodynamic analysis revealed that the adsorption was a spontaneous, endothermic process. The results demonstrated that all materials had the potential to successfully remove Cr(VI) from the aqueous solution.…”
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593
A Predictive Model for Coal Coking Based on Product Yield and Energy Balance
Published 2020-09-01“…In the first coking period, there are endothermic reactions; in the second, exothermic reactions occur. …”
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594
Phosphogypsum-Modified Vinasse Shell Biochar as a Novel Low-Cost Material for High-Efficiency Fluoride Removal
Published 2023-11-01“…Additionally, a thermodynamic analysis was indicative of spontaneous and endothermic processes. Based on characterization and experiment results, the plausible mechanism of fluoride adsorption onto MVS was proposed, mainly including electrostatic interactions, ion exchange, precipitation, and hydrogen bonds. …”
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595
Seasonal characteristics of phosphorus sorption by sediments from plain lakes with different trophic statuses
Published 2018-01-01“…Thermodynamic results indicate that the processes of P sorption of the three sediments are spontaneous, entropy-driven and endothermic reactions. The risk of P release in sediments was analysed according to the calculated results of isotherms combined with the change in P fraction. …”
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596
ANALISIS MISKONSEPSI SISWA KELAS XI MADRASAH ALIYAH NEGERI 1 (MAN 1) LAMPUNG TIMUR DALAM MEMPELAJARI POKOK BAHASAN TERMOKIMIA
Published 2020-07-01“…The obtained results exhibited that student misconception toward the tested subject, including exothermic and endothermic reaction, thermochemistry equation, enthalpy changes, Hess Law, and bonding energy, were 90, 78, 45, 66, and 18%, respectively. …”
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597
Adsorption of methylene blue from aqueous solution on the surface of wool fiber and cotton fiber
Published 2005-11-01“…The methylene bluesheep wool system show non spontaneous and exothermic behavior, while methylene bluecotton fiber system show spontaneous and endothermic behavior. The results of these investigations suggested that natural adsorbents can be utilized as adsorbent materials, because of their selectivities for the removal of dyes.Journal of Applied Sciences and Environmental Management Vol 9(2) 2005: 29-35…”
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598
Kinetics of the Adsorption of Chromium(VI) Ions from Water by Vegetable Precursors Treated with Sulphuric Acid
Published 2009-12-01“…The thermodynamic studies revealed that the values of Δ ads H 0 were positive, suggesting that the adsorption process was endothermic in nature.…”
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599
Equilibrium, Thermodynamic and Kinetic Studies on Adsorption of a Basic Dye by Citrullus Lanatus Rind
Published 2012-01-01“…The thermodynamic parameters of crystal violet biosorption indicated, the process was spontaneous and endothermic. The results indicated that the biosorbent studied was found to be a promising alternative for the adsorption of crystal violet from aqueous solution.…”
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600
Kinetics of solid-state oxidation of iron, copper and zinc sulfide mixture
Published 2023-03-01“…Using the high-temperature X-ray powder diffraction, thermogravimetry and differential scanning calorimetry, it was found that the process can be represented by five exothermic elementary reactions, corresponding to intensive burning of iron, copper and zinc sulfides, and two endothermic ones, associated with decomposition of copper and iron sulfates. …”
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