يعرض 1,541 - 1,560 نتائج من 1,806 نتيجة بحث عن '(( 20 1 decrease ) OR ( 10 ((meet decrease) OR (((a decrease) OR (mean decrease)))) ))*', وقت الاستعلام: 0.15s تنقيح النتائج
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    Improving Concrete Durability by Using Optimized Aggregate Gradation and Reducing Cement Content حسب Chung, Hung-Wen

    منشور في 2020
    "…The main findings from this study are as follows: (1) The cementitious content of typical Florida pavement and structural concrete can be reduced by as much as 10 to 15% without loss in workability of the fresh concrete, and without decreasing the strength and durability of the hardened concrete. (2) Portlandlimestone cement (Type IL) can be used as a substitute for ordinary Portland cement (Type I/II). (3) The OAG technique can be used to efficiently reduce the cementitious content of the concrete mixes and to improve their performance."…"
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  4. 1544
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  14. 1554

    Thermochemical splitting of CO2 using solution combustion synthesized lanthanum-strontium-anganese perovskites حسب Takalkar, G.

    منشور في 2021
    "…Redox reactivity of La(1-x)SrxMnO3 (LSM) perovskites towards a solar thermochemical CO2 splitting (CS) cycle is investigated. …"
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  15. 1555
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  17. 1557

    Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process حسب Reddya, M. Penchal

    منشور في 2017
    "…Results showed that, as the content of hard ceramic particles increases, it improves overall mechanical properties including microhardness, 0.2% yield strength, ultimate compression/tensile strength, and Young's modulus while the ductility and co-efficient of thermal expansion decreases. XRD patterns and SEM/EDS mapping images show a uniform distribution of Al2O3 particles in the Al matrix. …"
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  18. 1558
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  20. 1560

    Continuous adsorptive removal of glimepiride using multi-walled carbon nanotubes in fixed-bed column. حسب Badran, ismail

    منشور في 2021
    "…The maximum adsorption capacity (q) was 275.3 mg/g, and the axial dispersion coefficients were ranged between 3.5 and 9.0 × 10 m/s. The spent adsorbent was successfully regenerated at high pH by flushing with NaOH.…"
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