يعرض 221 - 240 نتائج من 277 نتيجة بحث عن '(( 5 ((mean decrease) OR (point decrease)) ) OR ( 100 ((peer decrease) OR (a decrease)) ))', وقت الاستعلام: 0.19s تنقيح النتائج
  1. 221
  2. 222

    Modified zno nanoparticles using iron ions (Fe3+) for photo-catalytic degradation of toxic pollutants under sunlight حسب Ba-Abbad, Muneer M.

    منشور في 2019
    "…As the Fe3+ concentration increased from 0.25 to 1.00 wt. %, the crystal size decreased in comparison with the undoped ZnO. …"
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  3. 223

    Synthesis and electrochemical properties of nickel oxide/carbon nanofiber composites حسب Al-Enizi, Abdullah M.

    منشور في 2014
    "…The EDLC increased from 0.144 F g−1 at a calcination temperature of 100 °C to 485 F g−1 at a calcination temperature of 500 °C.…"
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  4. 224

    Facile Electrochemical Synthesis of Highly Efficient Copper-Cobalt Oxide Nanostructures for Oxygen Evolution Reactions حسب Nath, Narayan Chandra Deb

    منشور في 2020
    "…An optimized nanopetal structure of CuxCo3-xO4 (x = 0.95, annealed at 200 °C) shows a considerably high Faradaic efficiency (∼93%) with a remarkably low overpotential (∼230 mV) at a benchmark current density (J) of 10 mA cm-2; at the same J in an alkaline solution (1 M KOH) for OER, it also exhibits high durability (up to 100 h). …"
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  5. 225

    Centrifugal Compressor Spiral Dry Gas Seal Simulation Working at Reverse Rotation حسب Ibrahim, Shahin

    منشور في 2013
    "…The open force corresponding to reverse rotation increased with a value 1.5kN for both the 100 overlap and 50% forward overlap seal faces, but using seal face with 50% backward overlap failed to enhance the open force at reversal condition.…"
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  6. 226

    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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  7. 227

    Structural performance and moment redistribution of basalt FRC continuous beams reinforced with basalt FRP bars حسب Abushanab, Abdelrahman

    منشور في 2021
    "…A total of 10 reinforced concrete (RC) continuous beams over two equal spans of 1800 mm were tested under five-point loading until failure. The test variables were the type of main bars, sagging-to-hogging reinforcement ratio, volume fractions (Vf) of basalt macro fibers (BMF), and stirrups spacing. …"
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  8. 228
  9. 229

    Effect of electroless bath composition on the mechanical, chemical, and electrochemical properties of new NiP-C 3 N 4 nanocomposite coatings حسب Fayyad E.M.

    منشور في 2019
    "…The results indicated that the alkaline electroless bath produced a NiP–C3N4 NCC with a microhardness 250 HV200 higher than that produced from the acidic one. …"
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  10. 230

    Driver Drowsiness Detection Study using Heart Rate Variability analysis in Virtual Reality Environment حسب Chowdhury, Muhammad E.H.

    منشور في 2018
    "…The LF/HF ratio reflects the differences between awake and drowsy states while the ratio was decreasing gradually from the awake state to drowsy state [5-6].Method A portable wireless BioRadio (Fig.2 A) (Great Lakes NeuroTechnologies, Inc.) …"
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  11. 231

    The Separation of Emulsified Water/Oil Mixtures through Adsorption on Plasma-Treated Polyethylene Powder حسب Abdulkareem, Asma

    منشور في 2021
    "…This work addresses the preparation and characterization of efficient adsorbents for tertiary treatment (oil content below 100 ppm) of oil/water emulsions. Powdered low-density polyethylene (LDPE) was modified by radio-frequency plasma discharge and then used as a medium for the treatment of emulsified diesel oil/water mixtures in the concentration range from 75 ppm to 200 ppm. …"
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  12. 232

    Salvia fruticosa Induces Vasorelaxation in Rat Isolated Thoracic Aorta: Role of the PI3K/Akt/eNOS/NO/cGMP Signaling Pathway حسب Anwar, M. Akhtar

    منشور في 2017
    "…Pretreatment of endothelium-intact rings with L-NAME (a non-selective inhibitor of nitric oxide synthase, 100 µM), or ODQ (an inhibitor of soluble guanylyl cyclase, 10 µM) significantly diminished SF-mediated vasorelaxation. …"
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  13. 233

    Low electro-synthesis potentials improve permselectivity of polymerized natural phenols in biosensor applications حسب Monti, Patrizia

    منشور في 2017
    "…Polymers were obtained by means of constant potential amperometry, instead of cyclic voltammetry, in order to achieve multiple polymerizations, hence decreasing the time of realization and variability. …"
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  14. 234

    Functionalization of silica-coated magnetic nanoparticles as powerful demulsifier to recover oil from oil-in-water emulsion حسب Elmobarak W.F.

    منشور في 2021
    "…Increasing the water salinity from 0.1 to 0.5 M slightly improved the %Soil for the tests carried out with a Doil of 100 mg/L to 93.3%, 90.3%, and 86.3% for Fe–Si-2, Fe–Si-3, and FeSi-4, respectively. …"
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  15. 235

    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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  16. 236

    Bromate reduction by ultraviolet light irradiation using medium pressure lamp حسب Bensalah, Nasr

    منشور في 2013
    "…The observed rate constant (kobs) decreased with increasing bromate concentrations upto 100 μg/L and then it becomes constant at 0.058 min-1 for higher bromate concentrations. …"
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  17. 237

    Electrochemical and thermodynamic study on the corrosion performance of API X120 steel in 3.5% NaCl solution حسب Shahzad, Khuram

    منشور في 2020
    "…The overall results revealed that PEI significantly decreases the corrosion rate of API X120 steel with inhibition efficiency of 94% at a concentration of 100 μmol L−1. …"
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  18. 238

    Umbelliferone inhibits spermatogenic defects and testicular injury in lead-intoxicated rats by suppressing oxidative stress and inflammation, and improving Nrf2/HO-1 signaling حسب Alotaibi, Mohammed F.

    منشور في 2020
    "…Materials and Methods: Rats received lead acetate (50 mg/kg) and UMB (25, 50 or 100 mg/kg) via oral gavage for 4 weeks. Results: Pb-intoxicated rats exhibited testicular tissue injury and decreased serum levels of LH, FSH and testosterone. …"
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  19. 239

    Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process حسب Reddy, 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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  20. 240