يعرض 381 - 400 نتائج من 917 نتيجة بحث عن '(( 5 ((steel decrease) OR (((nn decrease) OR (a decrease)))) ) OR ( 1 wt decrease ))', وقت الاستعلام: 0.33s تنقيح النتائج
  1. 381

    Enhanced quality factor of polyvinyl formal (PVF) based nanocomposites filled with zinc oxide and carbon black nanoparticles for wireless sensing applications حسب Mohanapriya, M.K.

    منشور في 2019
    "…The incorporation of ZnO at 10% decreases Q-factor to 36.1. Incorporation of CBNP at 5% and ZnO at 5% further reduces the Q-factor to 13.7. …"
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  2. 382

    Mechanical and microstructure characterization of hard nanostructured N-bearing thin coating حسب Cabibbo, M.

    منشور في 2015
    "…The main problem with steel, is that it exhibits a relatively low hardness (below 10GPa) which strongly decreases upon annealing above about 600K. …"
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  3. 383
  4. 384

    High temperature thermal stability of innovative nanostructured thin coatings for advanced tooling حسب Cabibbo, Marcello

    منشور في 2014
    "…The main problem with steel, isthat itexhibits a relatively low hardness (below 10 GPa) which strongly decreases upon annealing above about 600 K.Thus, the majority of modern tools are nowadays coated with hard coatings that increase the hardness, decrease the coefficient of friction and protect the tools against oxidation. …"
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  5. 385

    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
    "…An electroless bath of 0.5 g L−1 C3N4 offered a nanocomposite coating with the highest microhardness and superior corrosion resistance. …"
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  6. 386

    Improvement of ternary recycled polymer blend reinforced with date palm fibre حسب Khanam, P. Noorunnisa

    منشور في 2014
    "…The date palm fibre reinforced composites (CD00) were prepared by maintaining constant weight% of fibre of 20wt% without any fibre treatment. Maleic anhydride (MA) was used as the compatabilizer (1 and 2wt%) and the effect of compatabilizer on the blend matrix composites was studied. …"
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  7. 387
  8. 388
  9. 389

    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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  10. 390

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

    منشور في 2018
    "…The results show that the selected amino acids and ionic liquids exhibit dual functional behaviour by providing the temperature shift of around 1.5-2.3 oC and delaying the hydrate formation time from 0.5-1.5 hr. …"
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  11. 391

    Shear Behavior of Green Concrete Beams Reinforced with Basalt FRP Bars and Stirrups. حسب Elahtem, Ayman Ahmed

    منشور في 2020
    "…The parameters investigated in this study are span to depth ratio (i.e. a/d =2.5 and 3.5), reinforcement ratio , stirrups spacing effect (i.e. 250 mm and 350 mm) and stirrups type (Steel and Basalt). …"
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  12. 392

    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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  13. 393

    Experimental Investigation of Foam drilling fluid using Visualization Technique حسب Barooah, Abinash

    منشور في 2021
    "…The experiments were conducted in a 6.16 m long horizontal pipe with 2.5 in. inner diameter and 4.5 in. outer diameter and annular diameter ratio of 1.8. …"
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  14. 394

    Isothermal crystallization kinetics and morphology of double crystalline PCL/PBS blends mixed with a polycarbonate/MWCNTs masterbatch حسب Gumede T.P.

    منشور في 2019
    "…The nanocomposites contained 1.0 and 4.0 wt% MWCNTs. The blends showed a sea-island morphology typical of immiscible blends. …"
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  15. 395

    Changes In Biomass Gain, Protein Content And Hormonal Levels In Wheat Kernels In Response To Soil Drench With Sodium Salicylate حسب Abo Hamed, S. A.

    منشور في 1992
    "…Drenching of soil with sodim salycylate (800,4000 and 8000mg/l) increased grain f. wt. and d. wt. Protein content was increased in grains at days 23 and 60 with 800 mg/1 salicylate. …"
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  16. 396

    Improved flexible, controlled dielectric constant material from recycled LDPE polymer composites حسب Noorunnisa Khanam, P.

    منشور في 2016
    "…In this study, recycled low density polyethylene (RLDPE) is developed with the addition of aluminum oxide (Al2O3) to have new polymer composites. The following wt% were used of the filler (1, 4 and 6 wt%). Tensile properties, Hardness, scanning electron microscopy (SEM) thermo gravimetric analysis, differential scanning calorimetry and dielectric properties were studied for these composites. 4 wt% Al2O3/RLDPE composites showed the optimum values of 15.52, 180.8 and 59.72 MPa for the tensile strength, tensile modulus and hardness were reported. …"
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  17. 397

    Tribological studies of nanomodified mineral based multi-grade engine oil حسب Laad, M.

    منشور في 2017
    "…Tests were carried under loads of 40N, 60N and 90N at sliding speeds 0.5 m/s, 1.0 m/s and 1.5 m/s. Nanoparticle concentration in the mineral oil was taken as 1.5 wt%. …"
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  18. 398

    Modelling of the flow behaviour of wrought aluminium alloys at elevated temperatures by a new constitutive equation حسب El Mehtedi, M.

    منشور في 2014
    "…The calculation indicated that the activation energy for hot working decreased from 218 to 198kJmol−1 in the considered range of strain.…"
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  19. 399
  20. 400

    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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