-
1141
The Characteristics of Thunderstorms and Their Lightning Activity on the Qinghai-Tibetan Plateau
Published 2022-01-01“…The distribution of CG lightning in all seasons has obvious differences in peak time and the proportion of positive CG (+CG) lightning, with the ratio of +CG lightning to total CG lightning flashes in spring and autumn exceeding 50%. (2) The ratio of +CG lightning to total CG lightning flashes over the QTP is influenced by a combination of thermodynamic and microphysical factors. Over the QTP, greater vertical wind shear leads to the movement of upper positive charges and promotes the occurrence of +CG lightning. …”
Get full text
Article -
1142
Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite
Published 2019-01-01“…Results showed that the adsorption equilibrium is established after 70 minutes with the adsorbent dosage of 0.01 g.mL−1 at 30°C (the room temperature). The thermodynamic and kinetic parameters of this adsorption including free enthalpy change (∆G0), enthalpy change (∆H0), entropy change (∆S0), and reaction order with respect to Ni(II) ions were also determined. …”
Get full text
Article -
1143
Geothermal heat flux of Ridge B region in Antarctica inferred from basal dry–wet distribution
Published 2025-01-01“…GHF is then constrained by a thermodynamic model matched to the transitions. The results show that GHF in Ridge B varies locally and ranges from 48.5 to 65.1 mW m−2, with an average value of 58.0 mW m−2, which is consistent with the current known GHF constrained by subglacial lakes and derived from Vostok ice core temperature measurements. …”
Get full text
Article -
1144
The Bioactivated Interfacial Behavior of the Fluoridated Hydroxyapatite-Coated Mg-Zn Alloy in Cell Culture Environments
Published 2011-01-01“…Combined with improved cell calcification, the-FHA coated Mg alloys have the ability to promote CDHA formation, as expected thermodynamically. It is suggested that the specific cell culture environment and the bone-like FHA coatings together facilitate the observed behavior. …”
Get full text
Article -
1145
A Pseudopotential Lattice Boltzmann Method for Simulation of Two-Phase Flow Transport in Porous Medium at High-Density and High–Viscosity Ratios
Published 2021-01-01“…An appropriate modification in the forcing schemes is also used to remove the thermodynamic inconsistency in the simulation of two-phase flow problems studied at low reduced temperatures. …”
Get full text
Article -
1146
Adsorption Characteristics of Cu(II) and Pb(II) Ions onto Natural Manganese Ore from Aqueous Solution
Published 2008-10-01“…The resulting isotherms could be described by the Langmuir relationship, with the adsorbent showing a higher affinity towards Pb(II) ions than Cu(II) ions. Thermodynamic analysis indicated that the adsorption process was endothermic and possibly chemical in nature with positive values of ΔH 0 . …”
Get full text
Article -
1147
Titanium deoxidation mechanism probed using an electron beam melting method
Published 2025-01-01“…Residual gas analysis confirmed the evolution of oxygen gas over a duration of 10 min. Thermodynamic calculations indicate that deoxidation is feasible at temperatures exceeding 4,000 K in a vacuum of approximately 5 × 10−7 Torr, thereby substantiating the potential for deoxidation. …”
Get full text
Article -
1148
Examination of Perovskite Structure CaMnO3-δ with MgO Addition as Oxygen Carrier for Chemical Looping with Oxygen Uncoupling Using Methane and Syngas
Published 2013-01-01“…Contrary to NiO, oxygen carriers based on CaMnO3-δ have no thermodynamic limitations for methane oxidation to CO2 and H2O, not to mention that the materials are environmentally friendly and can utilize much cheaper raw materials for production. …”
Get full text
Article -
1149
Multi-objective optimization of graphene far-infrared paddy drying process based on response surface methodology
Published 2025-01-01“…The findings indicate that both the drying rate and SCI of paddy increased with an increase in the infrared temperature and grain-flow rate; higher values of these parameters resulted in improved thermodynamic properties. Conversely, the SEC decreased with an increase in the infrared temperature and grain flow, whereas the thermal efficiency exhibited an inverse relationship. …”
Get full text
Article -
1150
An Experimental Study on the Adsorption and Desorption of Cu(II) in Silty Clay
Published 2018-01-01“…The maximum adsorption of Cu(II) occurred at 35°C for this study, and the binding energy increased as the temperature increased. Thermodynamic analysis revealed that the adsorption process of Cu(II) was spontaneous and endothermic. …”
Get full text
Article -
1151
The solvent effect, preferential solvation of metformin hydrochloride in binary mixed solvents of methanol/ethanol + water mixtures from 278.15 K to 323.15 K
Published 2025-04-01“…We employed the inverse Kirkwood-Buff integrals (IKBI) method to extract key parameters from the solution thermodynamic properties of MET.HCl, yielding valuable insights into its behavior. …”
Get full text
Article -
1152
Microstructure, hardness and interfacial energy in Co-9Al-10W-xNi (x=15, 25, 35 at. %) alloys during aging
Published 2017-01-01“…Moreover, the interfacial energy of γ/γ' interface was also evaluated on the basis of the coarsening kinetics of γ' precipitates and the Philippe-Voorhees model in combination with the thermodynamic and atomic mobility databases. The results indicate that the interfacial energies of γ/γ' interface reduce as the increase of additional Ni content and aging temperature.…”
Get full text
Article -
1153
CuAl-LDH Modified with Filamentous Macroalgae for Anionic Dyes Removal: A Study on Selectivity, Adsorption Efficiency, and Regeneration
Published 2024-12-01“…The adsorption process followed the intraparticle diffusion kinetics model and Langmuir isotherm. Thermodynamic studies showed that the adsorption of RR using CuAl-LDH/SA was endothermic and spontaneous. …”
Get full text
Article -
1154
Pilot-Scale Enzymatic Conversion of Low Stability, High Free Fatty, Squid Oil to an Oxidatively Stable Astaxanthin-Rich Acylglyceride Oil Suitable for Nutritional Applications
Published 2025-01-01“…The processed oil was analyzed for oxidation kinetics and thermodynamics using Rancimat, fatty acid composition using GC, omega-3 fatty acid positional distribution in the acylglyceride product using <sup>13</sup>C NMR, and astaxanthin content. …”
Get full text
Article -
1155
Energy-and-Technology Installation Based on a Rolling Mill Heating Furnace with the Option of Hydrogen Production
Published 2022-04-01“…The main aspects and features of thermochemical methods of hydrogen production are shown from the standpoint of choosing the number of stages of chemical reactions implementation and determining the thermodynamic conditions for their conduct. The conditions for the implementation of the copper-chlorine Cu–Cl thermochemical cycle were investigated, and a rational variant of its implementation has been determined, taking into account the use of thermal waste (secondary energy resources) of the heating furnaces of the rolling mill. …”
Get full text
Article -
1156
Effect of Ethiopian kaolin treatment on the performance of adsorptive removal of methylene blue dye
Published 2025-01-01“…Maximum dye removal efficiencies of 99 %, 99.84 %, 99.76 %, and 100 % were achieved for RK, BK, CK, and ALK, respectively, under optimal conditions of 20 mg/L MB, 30 °C, 60 min contact time, pH 9, and 1 g/100 mL adsorbent. From the thermodynamic data it was observed that the process was most efficient at lower temperatures, indicating that adsorption is more feasible and exothermic at these conditions. …”
Get full text
Article -
1157
A new potential of sodium anthraquinone-2-sulfonate as a corrosion inhibitor for carbon steel in 0.5 M H2SO4
Published 2025-01-01“…It was found that the inhibition efficiency of AQ2SNa in 0.5 mol dm-3 H2SO4 solution reached up to 94.44 % at the maximum concentration (0.5 g dm-3). Thermodynamic parameters show that the adsorption process is spontaneous and endothermic, suggesting the conformance of strong interactions between inhibitor and metal surface according to the Langmuir adsorption model. …”
Get full text
Article -
1158
Mathematical, electrochemical, spectroscopic and microscopic monitoring of the adsorption effect of expired drugs on zinc corrosion in 3.5% NaCl solution
Published 2025-01-01“…In this context, the inhibitory efficacy of two environmentally friendly expired drugs, gatifloxacin (Gat) and levofloxacin (Lev), on zinc corrosion in 3.5 % NaCl solution was investigated using several techniques at different temperatures. Kinetic and thermodynamic evaluations confirmed that the adsorption strength of these compounds on the metal surface plays an effective role in their inhibitory capacity, and this certainly depends on their chemical structure. …”
Get full text
Article -
1159
Chemical Modifications of Cassava Peel as Adsorbent Material for Metals Ions from Wastewater
Published 2016-01-01“…Isotherms obtained from the preliminary results were linearized by Langmuir’s and Freudlich’s models. The thermodynamic parameters, such as ΔH, ΔG, and ΔS, were also evaluated. …”
Get full text
Article -
1160
Efficient adsorption of ofloxacin in a novel nanocomposite formed by nano-hexagonal boron nitride fused with zeolite imidazolite skeleton-8: Experimental and molecular dynamics sim...
Published 2025-01-01“…OFL adsorption on ZIF-8@h-BN-X followed the Langmuir isotherm model and pseudo-second-order adsorption kinetics. Thermodynamic parameters indicated that the adsorption process of ZIF-8@h-BN-X was exothermic and spontaneous when compared to h-BN alone. …”
Get full text
Article