Showing 881 - 900 results of 1,519 for search '(( ((50 i) OR (10 i)) decrease ) OR ( 5 ((wt decrease) OR (((nn decrease) OR (a decrease)))) ))', query time: 0.22s Refine Results
  1. 881
  2. 882

    Environment Degradation and Economic Growth in the Qatar Economy: Evidence from a Markov Switching Equilibrium Correction Model by Charfeddine, Lanouar

    Published 2016
    “…For instance, the values for PM10 is around 150 ug/m3 for 24 hours average concentration and to 50 ug/m3 for the annual average concentration. …”
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  3. 883

    The influence of aeration scheme and aeration rate on the permeate flux for wastewater treatment using membrane bioreactors: Experimental and artificial neural network modeling by Jawad, Jasir

    Published 2021
    “…In this paper, the effect of time, aeration scheme, aeration rate, and mixed liquor suspended solid (MLSS) concentration on the permeate flux in membrane bioreactors have been studied. Aeration rates of 0.5, 1.0, and 1.5 LPM were tested with MLSS concentrations of 5, 10, and 15 g/L. …”
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  4. 884
  5. 885

    Global disease burden attributed to low physical activity in 204 countries and territories from 1990 to 2019: Insights from the Global Burden of Disease 2019 Study by Ammar, Achraf

    Published 2023
    “…In 2019, low PA seems to contribute to 0.83 million [95% uncertainty interval (UI) 0.43 to 1.47] deaths and 15.75 million (95% UI 8.52 to 28.62) DALYs globally, an increase of 83.9% (95% UI 69.3 to 105.7) and 82.9% (95% UI 65.5 to 112.1) since 1990, respectively. The age-standardized rates of low-PA-related deaths and DALYs per 100,000 people in 2019 were 11.1 (95% UI 5.7 to 19.5) and 198.4 (95% UI 108.2 to 360.3), respectively. …”
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  6. 886
  7. 887
  8. 888

    Study of the effects of dust, relative humidity, and temperature on solar PV performance in Doha: Comparison between monocrystalline and amorphous PVS by Touati F.A.

    Published 2013
    “…It was estimated that 100 days of dust accumulation over monocrystalline PV panels, caused the efficiency to decrease by around 10%. This limitation makes solar PVs to represent an unreliable source of power for unattended or remote devices and thus strongly suggests the challenge of cleaning the panel's surface regularly or injecting technical modifications. …”
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  9. 889
  10. 890

    Microbial electrosynthesis feasibility evaluation at high bicarbonate concentrations with enriched homoacetogenic biocathode by Gunda, Mohanakrishna

    Published 2020
    “…On the contrary, carbon conversion efficiency decreased with the increase in the bicarbonate concentration, which evidenced a maximum at 2.5 g HCO3−/L (90.16%). …”
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  11. 891
  12. 892
  13. 893

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

    Published 2021
    “…The efficiency of the plasma-treated LDPE powder in oil removal was found to be dependent on the initial oil concentration. It decreased from 96.7% to 79.5% as the initial oil concentration increased from 75 ppm to 200 ppm. …”
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  14. 894

    Continuous adsorptive removal of glimepiride using multi-walled carbon nanotubes in fixed-bed column. by Badran, ismail

    Published 2021
    “…The maximum adsorption capacity (q) was 275.3 mg/g, and the axial dispersion coefficients were ranged between 3.5 and 9.0 × 10 m/s. The spent adsorbent was successfully regenerated at high pH by flushing with NaOH.…”
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  15. 895

    Methylmercury, Trace Metals, Organotins and Their Effects on the Qatari Mangrove Shrimp, Palaemon khori by Hassan, Hassan

    Published 2022
    “…The Qatari mangroves of Al-Khor are being increasingly exposed to a wide variety of anthropogenic pollutants due to land reclamation and urban expansion. …”
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  16. 896
  17. 897

    Enhancing thermal and mechanical response of aluminum using nanolength scale TiC ceramic reinforcement by Reddy M.P.

    Published 2018
    “…the present work, nano-sized titanium carbide (0.5, 1.0 and 1.5 vol%) reinforced aluminum (Al) metal matrix composites were synthesized by powder metallurgy incorporating microwave sintering and hot extrusion. …”
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  18. 898

    Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) by Connor, Izumi

    Published 2022
    “…Its values in the Gulf ranged from −50 to −310 μmol kg−1 implying CaCO3 precipitation. …”
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  19. 899

    Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) by Connor, Izumi

    Published 2022
    “…Its values in the Gulf ranged from −50 to −310 μmol kg−1 implying CaCO3 precipitation. …”
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  20. 900

    Concrete Pavement Truck Equivalence Factors For Upgrades by Razouki, Sabah Said

    Published 1999
    “…Presented in this paper are the upgrade truck equivalence factors for single unit trucks of type, 1.2 and 1.22 which are not covered by AASHTO. The equivalency factors for front and rear axles of single unit trucks were developed using AASHO Road Test equation after considering the decrease in front axle load and the increase in rear axle load due to the axle load redistribution on upgrades. …”
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