“…Fly ash does not directly participate in the hydration reaction of cement, but it can promote cement hydration and increase the reaction rate of cement. By analyzing the rheological properties, mechanical properties, and hydration properties of fly ash composite cement paste, the comprehensive analysis found that the rheological properties are excellent when the fly ash admixture is 20–30%, and the water–cement ratio can be reduced to improve the strength without affecting the pumping demand.…”
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“…Besides, control over reaction rate and selectivity are important for smart application purposes. …”
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“…A mathematical model is developed to predict the photocatalytic activity of the produced nanocomposite by considering parameters such as initial dye concentration, light intensity, reaction temperature, and catalyst dosage. The reaction rate constant K(1) decreased from 0.0153 to 0.0044 min(−1) with an increase in the MB concentration from 5 to 15 mg L(−1), while K(2), K(3), and K(4) were found to increase with the increase in reaction temperature (0.0153 to 0.0222 min(−1)), light intensity (0.0153 to 0.0228 min(−1)) and catalyst dose concentration (0.0153 to 0.0324 min(−1)), respectively. …”
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“…On the contrary, in the presence of the spin-bearing magnesium ions, the dependence of the reaction rate on the magnetic field induction was non-monotonous and possess a distinct minimum at 80–100 mT. …”
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“…Microbial electrochemical technologies (METs) employ microorganisms utilizing solid-state electrodes as either electron sink or electron source, such as in microbial electrosynthesis (MES). METs reaction rate is traditionally normalized to the electrode dimensions or to the electrolyte volume, but should also be normalized to biomass amount present in the system at any given time. …”
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“…Browning inhibition correlated with the reaction rate constant (k(0)) and activation energy (Ea), exhibiting a correlation coefficient of 0.925, 0.964, 0.932 and 0.754 for L*, DE*, HMF and furfural, respectively.…”
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“…In a chemical mass action law this coefficient corresponds to the reaction rate. We get a free boundary problem in time, which exhibits deterministic ‘metastability’. …”
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“…Fe(3)O(4)-Au is the best catalyst, its a reaction rate (k(Fe(3)O(4)-Au) = 0.416 mM L(–1) min(–1)) is about 20 times higher than that of bare Fe(3)O(4) (k(Fe(3)O(4)) = 0.018 mM L(–1) min(–1)). …”
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“…Therefore, the rates of these transmission loss increases correspond to the oxidation reaction rate, and should obey Arrhenius-type equations as a function of the absolute temperature. …”
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“…The obtained co-BCL-TLL@Fe(3)O(4) exhibited a significant improvement in activity and reaction rate compared with mono and combined-use lipases, achieving 92.9% yield after 6 h under optimal conditions, while individually immobilized TLL, immobilized BCL and their combinations exhibited yields of 63.3%, 74.2% and 70.6%, respectively. …”
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“…N(2)/CO(2) with a greater inerting effect leads to lower production of free radicals under the same explosion energy and a lower combustion reaction rate at the same flame propagation velocity. …”
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“…The relationship between the organization structures, mechanical properties, and heat resistance properties of the cured composites and material formulation was studied, and the DSC results showed that the addition of nano-TiO(2) reduced the curing reaction rate constant k(1) and increased the k(2) of the prepolymer, while the activation energy of the curing reaction after UV irradiation E(a1) decreased, and the activation energy in the middle and later periods E(a2) increased. …”
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“…CONCLUSION: FU combined with PTX and OXA can effectively improve the efficacy of first-line treatment for advanced gastric SRCC while reducing HER-2 expression, without increasing the adverse reaction rate. This treatment is worthy of clinical promotion.…”
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“…The SOA was generated by the dark ozonolysis of α-pinene, extracted into the water, and subjected to chemical aging by the OH. Bimolecular reaction rate coefficients (k(OH)) for the oxidation of terpenoic acids by the OH were measured using the relative rate method. …”
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“…To facilitate the HTDS engineering applications by the ZnO/R-CuO sorbents, their reaction rate constant (8.35 × 10(4) cm(3)/g/min) and activation energy (114.8 kJ/mol) at 873 K have also been determined. …”
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“…Bioassay of STA and HBI on punctured leaf discs of C. arvense and A. thaliana was conducted at a concentration of 2 mg/mL to evaluate phenotypic responses, the content of pigments, electrolyte leakage from leaf discs, the level of reactive oxygen species, Hill reaction rate, and the relative rise in chlorophyll a fluorescence. …”
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“…The Ni(3)N nanosheets catalyze CO(2) hydrogenation with a high CO production rate (1212 mmol g(−1) h(−1)) and selectivity (99%) using visible light. Reaction rate shows super-linear power law dependence on the light intensity, while quantum efficiencies increase with an increase in light intensity and reaction temperature. …”
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“…The nanoconfined catalyst was fabricated by assembling Co(3)O(4) nanoparticles in carbon nanotube nanochannels to achieve exceptional reaction rate and excellent selectivity. Experiments collectively suggested that the degradation of contaminants was attributed to singlet oxygen ((1)O(2)). …”
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“…The methylation of palmitic acid and oleic acid fits well with the first-order kinetic model (R(2) = 0.9940–0.9999) with a reaction rate constant of 0.6055 and 1.1403 h(-1), respectively. …”
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“…The Ti–Al coordination catalyst showed the best-improved reaction rate of isosorbide among the five transition metals used. …”
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