يعرض 161 - 180 نتائج من 450 نتيجة بحث عن '(( 50 ((steel decrease) OR (a decrease)) ) OR ( 5 ((wt decrease) OR (nn decrease)) ))', وقت الاستعلام: 0.22s تنقيح النتائج
  1. 161

    Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles حسب Chamakh, Mariem

    منشور في 2021
    "…The samples were synthesized with different concentrations of hydrous ruthenium chloride of 2 wt%, 5 wt%, and 10 wt%, and then annealed at a temperature of 300 �C for 4 h to form the ruthenium oxide nanoparticles. …"
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  2. 162

    Influence of nitrogen doping on the electrocatalytic activity of Ni-incorporated carbon nanofibers toward urea oxidation حسب Barakat, Nasser A.M.

    منشور في 2017
    "…However, the electrochemical measurements indicated that the content of the urea in the initial electrospun solution should be optimized as the results showed that the best nickel surface activation as well as the maximum observed current density can be achieved when the urea content is kept at 5 wt%. Typically, the observed current densities using 1.0 M urea (in 1 M KOH) were 3.15, 29.7, 13.75, 47.55, 14.13 and 9.85 mA/cm2 for the nanofibers obtained from electrospun solutions having 0, 1, 2, 5, 7 and 9 wt% urea, respectively. …"
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  3. 163

    Structural and mechanical characterization of stir cast Al–Al2O3–TiO2 hybrid metal matrix composites حسب Ahamad, N.

    منشور في 2020
    "…Aluminium matrix reinforced with aluminium oxide?titanium oxide (2.5, 5.0, 7.5 and 10 wt.%) in equal proportion were prepared by stir casting. …"
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  4. 164

    Correlation of structural and mechanical properties for Al-Al2O3-SiC hybrid metal matrix composites حسب Ahamad, Naseem

    منشور في 2021
    "…Al-Al2O3-SiC hybrid composite has been developed through stir casting with addition of ceramics i.e. Al2O3-SiC (2.5 wt.%, 5.0 wt.%, 7.5 wt.% and 10.0 wt.%) in relative and symmetrical proportion. …"
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  5. 165

    Date palm wood flour/glass fibre reinforced hybrid composites of recycled polypropylene: Mechanical and thermal properties حسب AlMaadeed, Mariam A.

    منشور في 2012
    "…Morphological studies indicated that glass fiber has good adhesion with recycled PP supporting the improvement of the mechanical properties of hybrid composites with glass fiber addition. Addition of as little 5wt% glass fibre to wood flour reinforced RPP increases the tensile strength by about 18% relative to the wood flour reinforcement alone. …"
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  6. 166

    Conversion of Organic Municipal Wastes into Biochars and their Effect on Fertility Parameters of Normal and Sabkha Soils of Qatar حسب Ahmedna, Mohamed

    منشور في 2016
    "…To each pot, sufficient amount of 0.25-mm sieved biochar was mixed with soil to yield carbon to soil ratios of 0, 1, and 2% (wt/wt). Box-Behnken experimental design was used instead of the full factorial to decrease the number of treatments to a manageable level (126 treatments) with three replications at the center. …"
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  7. 167

    Propagation rate coefficient for sulfobetaine monomers by PLP-SEC حسب Lacík, Igor

    منشور في 2016
    "…The kp values are determined in aqueous solutions for monomer concentrations between 5 and 50 wt % and temperatures between 15 and 80 °C. …"
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  8. 168

    Optimization of performance and emission characteristics of CI engine fueled with Jatropha biodiesel produced using a heterogeneous catalyst (CaO) حسب Singh, A.

    منشور في 2020
    "…The heterogeneous transesterification delivered a yield of 81.6% at 5 wt% catalyst concentration and 12:1 methanol to oil molar ratio. …"
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  9. 169
  10. 170
  11. 171

    Effects of superelastic nano-NiTi additions on electroless Ni –P coating properties under bending حسب MacLean M.

    منشور في 2019
    "…In this study, electroless Ni –P-nano-NiTi composite coatings containing 5.14 wt%, 6.07 wt%, and 7.02 wt % NiTi were subjected to three-point bend testing in order to determine bending properties. …"
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  12. 172

    Morphology, nucleation, and isothermal crystallization kinetics of poly(butylene succinate) mixed with a polycarbonate/MWCNTs masterbatch حسب Gumede, Thandi P.

    منشور في 2018
    "…Isothermal crystallization results indicated that with 0.5 wt% MWCNTs the crystallization rate was accelerated, but further increases in MWCNTs loading (and also in PC content) resulted in progressive decreases in crystallization rate. …"
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  13. 173

    Prospects Of Amino Acids And Ionic Liquids As Natural Gas Hydrate Inhibitors For Offshore Flow Assurance حسب Qureshi, M. Fahed Aziz

    منشور في 2018
    "…This work is beneficial for the industry and academic researchers as the required dosage of hydrate inhibitors has been reduced from 40 wt% to 5 wt%, which helps to reduce the overall CAPEX cost and reduce environmental concerns related to the disposal of the hydrate inhibitors. …"
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  14. 174

    Combined effects of treated domestic wastewater, fly ash, and calcium nitrite toward concrete sustainability حسب Abushanab, Abdelrahman

    منشور في 2021
    "…Test results revealed that TWW slightly decreased concrete compressive and flexural strengths by 5%-12%, whereas it dramatically increased the porosity and chloride permeability by about 40%. …"
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  15. 175

    The effects of gas tungsten arch welding on the corrosion and mechanical properties of AA 6061 T6 حسب Eltai, Elsadig

    منشور في 2013
    "…Corrosion of welded and un-welded Aluminum Alloy 6061 T6 was investigated by immersing specimens in 3.5% (wt) NaCl solution. Potentiodynamic and open circuit potential measurements were conducted. …"
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  16. 176

    Effect Of The Apical Ectodermal Ridge On Mitotic Index In Hind Limb Bud Mesenchyme In Bufo Regularis حسب Abdel Karim, Ahmed E.

    منشور في 1991
    "…The operated bud (80% of cases) showed a decrease in its volume and there was no significant difference in mesenchyme MI. …"
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  17. 177

    Synthesis and properties of HA/ZnO/CNT nanocomposite حسب Ding M.

    منشور في 2018
    "…The goal of this study was to examine the tribomechanical properties of hydroxyapatite (HA)/ZnO and HA/ZnO/CNT composite ceramics (carbon nanotubes; with different ratios 0.5 wt%, 1.0 wt%, and 1.5 wt%). The composites were synthesized using the hydrothermal method in an autoclave. …"
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  18. 178

    Nanocomposite Ni-TiO2 coatings produced by pulsed electroplating حسب Wang, Y.

    منشور في 2014
    "…A systematic study of Ni-xTiO2 coatings with different TiO2 concentrations (x50-20 g L-1) has been conducted. …"
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  19. 179

    Deoxygenation of pyrolysis vapour derived from durian shell using catalysts prepared from industrial wastes rich in Ca, Fe, Si and Al حسب Tan, Y.L.

    منشور في 2020
    "…Catalytic fast pyrolysis of durian shell using waste-derived catalysts is an effective waste management strategy as the bio-oil produced can be a potential alternative source of energy or chemical feedstocks.…"
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  20. 180

    Effect of concentration of DOC loaded TiO 2 nanotubes on the corrosion behavior of smart coatings حسب Ubaid F.

    منشور في 2019
    "…Various contents of the encapsulated TiO2 nanotubes (1, 3 and 5wt%) were thoroughly dispersed into the epoxy matrix and the resulting composites were then applied on a cleaned steel substrate using doctor blade technique to develop smart coatings. …"
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