Showing 621 - 640 results of 784 for search '(( 50 ((ms decrease) OR (a decrease)) ) OR ((( 19 a decrease ) OR ( a step decrease ))))*', query time: 0.16s Refine Results
  1. 621

    Structural and magnetic properties of Ni1-xZnxFe 2O4 (x=0, 0.5 and 1) nanopowders prepared by sol-gel method by Gao P.

    Published 2013
    “…A series of nanostructured Ni-Zn ferrites Ni1-xZn xFe2O4 (x=0, 0.5 and 1) with a grain size from 24 to 65 nm have been prepared with a sol-gel method. …”
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  2. 622

    Fatigue and Monotonic Behaviors of Corrosion-Damaged Reinforced Concrete Beams Strengthened with FRCM Composites by Elghazy M.

    Published 2018
    “…This paper provides a comprehensive account of using fabric-reinforced cementitious matrix (FRCM) composites to strengthen corrosion-damaged reinforced concrete (RC) structures subjected to monotonic loading and fatigue. …”
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  6. 626

    Finite element study of functionally graded porous femoral stems incorporating body-centered cubic structure by Alkhatib, Sami E.

    Published 2019
    “…Three levels of porosities (20%, 50%, and 80%) were modeled in HGP and FGP stems. …”
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  7. 627

    Synthesis of silica supported ni and cu catalyst for carbon dioxide methanation reaction by Aheed, Ahmed

    Published 2019
    “…The activity and product selectivity and stability for methanation reaction on Ni/SiO2 and Cu/SiO2 catalysts have been evaluated using a flow reactor between 50ºC - 650ºC. The as-synthesized catalysts were characterized using XRD, SEM, TEM to understand the structural properties. …”
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  8. 628
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    Flexural behavior of reinforced concrete beams prepared with treated Wastewater, recycled concrete Aggregates, and fly ash by Abushanab, Abdelrahman

    Published 2022
    “…The analytical investigations revealed that the ACI 318-19 code accurately predicted the beams' cracking moments, while the CSA-A23.3-14 code showed the least prediction error for the beams' ultimate moments. …”
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    Long-term performance analysis and power prediction of PV technology in the State of Qatar by Touati F.

    Published 2017
    “…Results show that due to panel dusting for eight months, the PV output power decreased by 50%. Also, owing to lower ambient temperatures, clearer sky and cleaner panels due to occasional rainfall, the PV panels show higher output power in Winter than in Summer season. …”
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  13. 633

    Development of an Air-Cooled Induction Manifold for Diesel Engines in Hot and Humid Climate by Elrentisy, Mohamed H.

    Published 2022
    “…For the emissions, there was a considerable reduction rate in NOx emissions with about 83% at 20 °C as well as a 50% reduction in hydrocarbon (HC) emissions compared with 45 °C. …”
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  14. 634

    Algal-algal bioflocculation enhances the recovery efficiency of Picochlorum sp. QUCCCM130 with low auto-settling capacity by Saadaoui, I.

    Published 2023
    “…QUCCCM31 and Tetraselmis sp. QUCCCM50 presenting a cell size of ∼2 μm, ∼5 μm, and ∼15 μm, respectively, were selected to be subjected to the harvesting optimisation experiments. …”
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  15. 635

    Selective adsorption of carbon dioxide, methane and nitrogen using resorcinol-formaldehyde-xerogel activated carbon by Awadallah, Ahmed

    Published 2017
    “…Adsorption/desorption isotherms of CO2, CH4, and N2 gases onto RF-ACX adsorbent were measured gravimetrically by a magnetic suspension microbalance at five different temperatures (20, 30, 40, 50 and 60 °C) in the pressure range of 0–1 MPa. …”
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  16. 636

    SAR and molecular mechanism studies of monoamine oxidase inhibition by selected chalcone analogs by Shalaby, Raed

    Published 2019
    “…The present study describes the synthesis of a series of 22 chalcone analogs. These compounds were evaluated as potential human MAO-A and MAO-B inhibitors. …”
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    Vertical zonation and functional diversity of fish assemblages revealed by ROV videos at oil platforms in The Gulf by Ben-Hamadou, Radhouan

    Published 2018
    “…Several trends were found in the vertical distribution of the fish community, most species were observed between 20 and 50 m depth and higher fish abundance recorded in the upper layers, down to 40 m depth and decreasing with depth. …”
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