Showing 161 - 180 results of 869 for search '(( 5 10 decrease ) OR ( 5 ((step decrease) OR (((nn decrease) OR (mean decrease)))) ))', query time: 0.21s Refine Results
  1. 161
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    Effect of using Cement Kiln Dust as a nano-material on the strength of cement mortars by Alnahhal, Wael

    Published 2017
    “…In addition to the control cement mortar mixture with 0% CKD, a total of 28 concrete mortar mixtures were prepared with four different replacement percentages of nano-CKD (5, 10, 15, and 20 %), and seven different milling times (1, 1.5, 2, 2.5, 3, 3.5, and 4 hours). …”
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  3. 163

    Evaluation of different personalized ventilation air terminal devices: Inhalation vs. clothing-mediated exposures by Al Assaad, Douaa

    Published 2021
    “…Increasing the flow to 10 l/s led to reductions of 89% in exposure and 56.5% in deposition. …”
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  4. 164
  5. 165

    Enhancement of mechanical and corrosion resistance properties of electrodeposited NiP-TiC composite coatings by Fayyaz O.

    Published 2021
    “…Various amounts of TiC particles (0, 0.5, 1.0, 1.5, and 2.0 g L−1) were co-electrodeposited in the Ni–P matrix under optimized conditions and then characterized by employing various techniques. …”
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  6. 166
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  8. 168

    Structural, wear and thermal behaviour of Cu–Al2O3–graphite hybrid metal matrix composites by Mittal, P.

    Published 2020
    “…Copper matrix composites with Al2O3–graphite reinforcement (0.5-0.5, 1.0-1.0, 1.5-1.5 and 2.0-2.0 wt%) were prepared by stir casting process. …”
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  9. 169
  10. 170

    Mercury pollution in doha (Qatar) coastal environment by Al-Madfa, H.

    Published 1994
    “…1) represented 81.0% of the total dissolved Hg (3.5 ng L?1). Organic Hg (0.6 ng L?1) contributed only 5.0% of total Hg. …”
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  11. 171

    Industrial waste utilization of carbon dust in sustainable cementitious composites production by Irshidat, Mohammad R.

    Published 2020
    “…Any further addition of carbon dust would decrease the strength. Best enhancement in compressive strength (27%) is achieved in the case of using 5% replacement ratio. …”
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  12. 172
  13. 173

    Bioactive PCL matrices with a range of structural & rheological properties by Douglas, P.

    Published 2016
    “…Increased loading of PEG to 25% (w/w) caused a 10-fold increase in the melt flow index, a similar increase in the elongational viscosity, and a contact angle decrease of 10°, indicating that the resultant fluid was becoming more Newtonian. …”
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  14. 174
  15. 175

    The Effect of Hyperoxia on Central and Peripheral Factors of Arm Flexor Muscles Fatigue Following Maximal Ergometer Rowing in Men by Volianitis, Stefanos

    Published 2022
    “…Results: Arterial hemoglobin O2 saturation was reduced to 92.5 ± 0.2% during exercise with normoxia but maintained at 98.9 ± 0.2% with hyperoxia. …”
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  16. 176

    Fecal Carriage and Molecular Characterization of Carbapenemase-Producing Enterobacterales in the Pediatric Population in Qatar by Pérez-López, Andrés

    Published 2021
    “…All 9 blaOXA-48-type-gene-containing E. coli sequence type 38 (ST38) strains were isolated from patients without international travel history. The mean quarterly incidence of fecal carriage decreased more than 6-fold after the implementation of coronavirus disease 2019 (COVID-19)-related international travel restrictions in Qatar in mid-March 2020. …”
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  17. 177

    Study of performance, combustion, and emissions parameters of DI-diesel engine fueled with algae biodiesel/diesel/n-pentane blends by Elkelawy, Medhat

    Published 2021
    “…To enhance engine performance, n-pentane was used in different extents of 5, 10, and 15 ml per liter as an enhancer additive. …”
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  18. 178

    Enhanced photovoltaic performance with co-sensitization of a ruthenium(ii) sensitizer and an organic dye in dye-sensitized solar cells by Mehmood, Umer

    Published 2016
    “…Upon optimization, the device made of 0.3 mM N3 + 0.2 mM RK-1 yielded Jsc = 18.1 mA cm2, Voc = 888 mV, FF = 57.44, and ? = 9.23%. This performance is superior to that of solar cells sensitized with either N3 (6.10%) or RK-1 (5.82%) fabricated under the same conditions. …”
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  19. 179

    Simulation and Optimization of an LNG Plant Cold Section by Katebah, Mary Anna

    Published 2018
    “…Using the short cut method, optimization revealed that optimized MR composition resulted in almost 10% MR compression power and 6% plant operating cost savings, whereas new intermediate propane evaporation pressures, identified using detailed simulation, and flowrates decreased the propane compression power and operating costs by around 3.6%, and 2%, respectively. …”
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