Showing 61 - 80 results of 625 for search '(((( 5 c decrease ) OR ( 50 mg decrease ))) OR ( 50 ((a decrease) OR (mean decrease)) ))', query time: 0.26s Refine Results
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    Enhanced boron removal by electricity generation in a microbial fuel cell by Ping, Qingyun

    Published 2016
    “…In the post-treatment mode, the MFC removed 80–90% of boron and decreased the boron concentration from 20 to 2 mg L− 1 or from 5 to 1 mg L− 1, which meets the irrigation water requirement. …”
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    Implementing and Analyzing a Recursive Technique for Building Path Oblivious RAM by Rachid, Maan Haj

    Published 2018
    “…Stefanov, E., Dijk, M. V., Shi, E., Fletcher, C., Ren, L., Yu, X., et al. (2013). …”
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  9. 69

    The impact of COVID-19 pandemic on tobacco use: A population-based study by Alomari, Mahmoud A.

    Published 2023
    “…Conclusions Changes in the SH during COVID-19 have been reported in about 50% of participants who smoke tobacco, with a more reported decrease than increase in use. …”
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  10. 70

    EFFECT OF PHENOL AS A CONTAMINANT ON THE WILD PEARL OYSTER PINCTADA IMBRICATA RADIATA IN QATAR: ECOTOXICOLOGICAL APPROACH AND USE OF OYSTER SHELL STRUCTURE AS A POTENTIAL MITIGATIO... by BARAH, FARAHNAZ GHOLAMREZA

    Published 2022
    “…The biometric analysis of the maitained Pinctada imbricata radiata showed that the dominated size class was (4.5 cm -5.5 cm) in length representing 70% of the population. …”
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  11. 71

    Sorption of benzene and naphthalene on (semi)-arid coastal soil as a function of salinity and temperature by NgueleuS.K.

    Published 2018
    “…The sorption of naphthalene was not affected by the change in salinity but increased by 18% when the temperature decreased from 35 to 5C. A sorption kinetic model was also applied to define the sorption behavior of benzene and naphthalene for the coastal soil collected in Qatar and the best fits were achieved with the Langmuir sorption isotherm.…”
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    A systematic review of stability of medicines used in emergency medical service settings by Rachid, Ousama

    Published 2020
    “…In the GCC region including Qatar, temperature and relative humidity values may rise over 50°C and 80%, respectively, according to climate data from the Qatar Civil Aviation Authority 3 . …”
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    Optimization of cultivation conditions for combined nutrient removal and CO2 fixation in a batch photobioreactor by Al Ketife, Ahmed MD

    Published 2017
    “…At 22% CO2 the Rc and μ decreased by around an order of magnitude, and nutrient removal also decreased to 79% and 50% for N and P, respectively. …”
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  16. 76

    Textile-Reinforced Mortar (TRM) System as a Strengthening Technique on Reinforced Concrete Beams by Afzal, Muhammad Shekaib

    Published 2016
    “…Nine beams were externally reinforced by one (“ρ” _“T-c” ^“1” “ = 0.014%”), two (“ρ” _“T-c” ^“2” “ = 0.028%”) and three (“ρ” _“T-c” ^“3” “ = 0.041%”) layers of carbon TRM system. …”
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  17. 77

    Synergistic effects and optimization of nitrogen and phosphorus concentrations on the growth and nutrient uptake of a freshwater Chlorella vulgaris by Alketife, Ahmed M.

    Published 2017
    “…1 and the maximum biomass produced was decreased more than three-fold to 0.5 g/L. The Box Behnken experimental design and response surface method were used to study the effects of the initial concentrations (P, N and C) on P and N removal efficiencies. …”
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    Understanding the Scales Formation Inhibition Mechanism on C-Steel in a Sour Media by Al-Qahtani, Noora

    Published 2019
    “…In this work, the electrochemical behaviour of C-steel in sour (i) de-ionised water (DIW) and (ii) in different NaCl solutions were examined in an H2S system. A series of experiments were conducted at ambient (RT), 50 oC and at 80 oC using different combinations of inhibitors (A and B). …”
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