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Mostrando 761 - 780 Resultados de 2,617 Para Buscar '"reaction rate"', tiempo de consulta: 0.30s Limitar resultados
  1. 761
    “…The reaction conducted under Ar showed a higher reaction rate than that with pressured CO(2), which clearly demonstrated the advantage of the catalytic system operated at low CO(2) pressure or even without CO(2).…”
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  2. 762
    “…The observed pseudo first-order reaction rate constant (k(obs)) for CCl(4) and chloroform were 0.1139 and 0.0109 h(−1), respectively, with a ZVI dosage of 20 g/L and an initial CCl(4) concentration of 20 mg/L. …”
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  3. 763
    “…The effect of the heat and mass transfer is coupled with the apparent decomposition reaction rate constant. Meanwhile, the time-dependent interfacial parameters would significantly impact on the hydrate dissociation rate, which are considered to enhance the predictive precision of the decomposition kinetic model. …”
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  4. 764
    “…Herein, a programmable dual‐catalyst hairpin assembly (DCHA) for realizing the synchronous recycle of two catalysts is developed, displaying high reaction rate and outstanding conversion efficiency beyond traditional nucleic acid signal amplifications (NASA). …”
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  5. 765
    “…Chemical transport model simulations using rate coefficients from laboratory studies of the reaction rate of HMHP with SO(2,aq) show that the HMHP pathways reduce the SO(2) lifetime by up to a factor of 2 and contribute up to ∼18% of global sulfate. …”
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  6. 766
    por Ge, Lun, Liu, Qiang
    Publicado 2022
    “…To improve the curing reaction rate and efficiency of sulfur-cured diene-based rubbers, the introduction of some chemical compounds as activators and accelerants is inevitably required, causing potential harm to humans and ecological systems. …”
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  7. 767
    “…We optimized DogTag/DogCatcher through rational design and evolution, increasing reaction rate by 250-fold and establishing millimolar solubility of DogCatcher. …”
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  8. 768
    “…[Image: see text] The use of Ca(OH)(2) as a CO(2) sorbent instead of CaO in calcium looping systems has the advantage of a much faster reaction rate of carbonation and a larger conversion degree to CaCO(3). …”
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  9. 769
    “…Between the three monomers, the difference in the chain length is shown to influence the reaction rate, with the longest chain demonstrating the fastest polymerization. …”
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  10. 770
    “…The kinetic data were analyzed using the pseudo-first-order reaction rate law. A complete conversion was obtained for ACP concentrations below 1 mM using a 360 nm filter and argon as the purge gas within 2–3 hours. …”
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  11. 771
    “…However, as the slag and alkali contents increased, the reaction rate of the metakaolin-based geopolymers increased, which significantly decreased the porosity, increased the shrinkage, and decreased the volumetric stability of the system. …”
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  12. 772
    “…The decomposition of FH slows down the reaction rate and the as-synthesized FH-series COFs (708 m(2) g(−1) for TpFH and 888 m(2) g(−1) for TFBFH) had higher specific surface area than hydrazine-series COFs (617 m(2) g(−1) for TpAzine and 472 m(2) g(−1) for TFBAzine). …”
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  13. 773
    “…The catalytic performance of the 1:1-Ag(3)PO(4)/AgBr/HAP composite was the best: complete degradation of MB was achieved within 40 min, and the reaction rate was 15 times that of Ag(3)PO(4)/AgBr. In the process of photocatalytic degradation, ˙O(2−) and h(+) are the main active species involved in the reaction, and the synergistic catalysis of Ag(3)PO(4), AgBr and HAP promotes the degradation rate.…”
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  14. 774
    “…An optimized film exhibited superior activity and stability, the degradation rate of norfloxacin was about 83.68% in 100 min and the reaction rate constant k was 1.9 times that of pristine Ag(3)PO(4). …”
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  15. 775
    “…The best reaction kinetic variables obtained from the HDS pilot-plant (specific reaction rate expression, rate law, and selectivity) TBR have been utilized to develop an industrial scale HDS of DBT. …”
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  16. 776
    “…HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonate) was found to have a positive effect on the reaction rate as compared to dihydrogenphosphate. This work is the first on the template-assisted formation of PANI-ES type products under mild, environmentally friendly conditions using hemin as a cost-effective catalyst.…”
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  17. 777
    “…Efficient anode materials with porous structures have drawn increasing attention due to their high specific surface area, which can compensate for the slow reaction rate of electrochemical oxidation. However, the use of these materials is often limited due to their poor corrosion resistance. …”
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  18. 778
    “…Our study found that [H(2)O(2)] is a major factor affecting Δt, while [Fe(3+)] and t(0) are the main factors influencing the exothermic reaction rate. For the conditions wherein [H(2)O(2)] is 0.2 mol L(−1), [Fe(3+)] is 10 mmol L(−1), pH = 7.8, initial reaction temperature is 30 °C, and reaction duration is 30 min, Δt of 200 mL of 0.04 mol L(−1)o-phenylenediamine is 7.2 °C and η is 93.45%. …”
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  19. 779
    “…The influence of reaction conditions on reaction rate was investigated. Optimized reaction conditions were suggested (two-fold molar excess of peracid with respect to the ketone, toluene as a solvent, 35 °C). …”
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  20. 780
    “…Metabolite profiling demonstrated that all the tested liver S9 samples from the different animals could catalyse 3-BTD methylation but displayed significant differences in reaction rate. Also, the differential effects of tolcapone (a potent inhibitor against COMT) on 3-BTD methylation among various species were observed. …”
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