Showing 541 - 560 results of 684 for search '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( 25 11 decrease ) OR ( a step decrease ))))*', query time: 0.24s Refine Results
  1. 541

    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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    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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  8. 548

    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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    Fluid-Structure-Acoustic coupling analysis for external laminar and turbulent fluid flows by Tohid, Adibi

    Published 2023
    “…The results indicate that the transmission loss is 27% more at the elastic plate’s highest position. By decreasing the length of the elastic plate by 50%, the mean transmission loss is reduced by 9%. …”
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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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  20. 560

    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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