يعرض 281 - 300 نتائج من 538 نتيجة بحث عن '(( 20 1 decrease ) OR ( 10 ((peer decrease) OR (((nn decrease) OR (mean decrease)))) ))*', وقت الاستعلام: 0.16s تنقيح النتائج
  1. 281

    An efficient green ionic liquid for the corrosion inhibition of reinforcement steel in neutral and alkaline highly saline simulated concrete pore solutions حسب Sliem, Mostafa H.

    منشور في 2020
    "…The inhibition efficiency was improved as the concentration of Q-32 and pH values were increased. However, it decreased as the temperature was raised. A Q-32 concentration of 20 µmol L–1 exhibited a 94% inhibition efficiency at 20 °C. …"
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  5. 285

    Advanced Hard Ctings: Towards A Whole New World حسب Santecchia, Eleonora

    منشور في 2014
    "…The main problem with steel, is that it exhibits a relatively low hardness (below 10 GPa) which strongly decreases upon annealing above about 600 K. Thus, the majority of modern tools are nowadays coated with hard coatings, in order to: (i) increase the hardness, (ii) decrease the coefficient of friction, and (iii) protect the tools against oxidation. …"
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  6. 286

    INVESTIGATING THE IMPACT AND MECHANICAL PROPERTIES OF RECLAIMED RUBBER AND SAWDUST COMPOSITE حسب MATAR, MOHAMMED S. A.

    منشور في 2022
    "…Reclaimed rubber composites of different wood content were manufactured for performance evaluation. Samples of 0, 1, 5, 10, 15, and 20% weight content of sawdust were manufactured and tested to understand the effect of wood content on performance. …"
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  7. 287

    Screening of Qatari Microalgae and Cyanobacteria for Application in CO2 Utilization حسب Schipper, Kira

    منشور في 2018
    "…Picochlorum maculatum showed a similar trend, with slightly lower productivities of 67.1 ± 0.2, 160.5 ± 21.8, 244.1 ± 20.9 and 219.9 ± 15.6 mg L-1 d-1 for 5, 10, 20 and 30% CO2 respectively. …"
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    Prediction of biogas production from chemically treated co-digested agricultural waste using artificial neural network حسب Almomani F.

    منشور في 2020
    "…The results demonstrated that co-digestion of ASWs with CM with a ratio of 70% to 30% produced the highest CMP of 334 ± 4 NL/kgVS in comparison with 230 ± 10 NL/kgVS for mono-digested substrate. The CMP was the highest for the substrate with moisture content (%MC) in the range of 34% to 48%, and it decreased for %MC > 50%. …"
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  10. 290

    Electrochemical oxidation of ammonia (NH4+/NH3) ON synthesized nickel-cobalt oxide catalyst حسب Almomani F.

    منشور في 2021
    "…The reported Pgen were 0.55, 0.85, 1.1 and 0.0.93 mW/cm2 for Ni–C, Co10/Ni–C, Co20/Ni–C and Co40/Ni–C. …"
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    Optimization of cultivation conditions for combined nutrient removal and CO2 fixation in a batch photobioreactor حسب Al Ketife, Ahmed MD

    منشور في 2017
    "…Experimental conditions employed comprised CO2 concentrations (Cc,g) of 0.03–22% CO2, irradiation intensities (I) of 100–400 μE, temperatures of 20–30 °C and nutrient concentrations of 0–56 and 0–19 mg L−1 nitrogen and phosphorus, respectively, the response parameters being specific growth rate μ, CO2 uptake rate Rc and %nutrient removal. …"
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