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Showing 1 - 10 results of 10 for search '(( 5 ppm decrease ) OR ( 5 a decrease ))~', query time: 0.08s Refine Results
  1. 1
    Resistive room temperature LPG sensor based on a graphene/CdO nanocomposite

    Resistive room temperature LPG sensor based on a graphene/CdO nanocomposite by Goutham S.

    Published 2019
    “…The electrical resistance measurement at a constant bias voltage of 0.5 V. The sensor of type CdO/graphene (1 wt.%) exhibits a sensitivity of 600 ppm of LPG at 27 C. …”
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  2. 2
    Aldehyde dehydrogenase expression in Metaphire posthuma as a bioindicator to monitor heavy metal pollution in soil

    Aldehyde dehydrogenase expression in Metaphire posthuma as a bioindicator to monitor heavy metal pollution in soil by Panday, Raju

    Published 2016
    “…The ALDH activity was found to be highest in worms cultured in 5 ppm heavy metal contaminated soils. Although, ALDH activities decreased as the heavy metal concentration in soil increased, they were significantly higher when compared to control worms cultured in uncontaminated soils. …”
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  3. 3
    Optimization of performance and emission characteristics of CI engine fueled with Jatropha biodiesel produced using a heterogeneous catalyst (CaO)

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

    Published 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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  4. 4
    Study of diesel-biodiesel blends combustion and emission characteristics in a CI engine by adding nanoparticles of Mn (II) supramolecular complex

    Study of diesel-biodiesel blends combustion and emission characteristics in a CI engine by adding nanoparticles of Mn (II) supramolecular complex by Elkelawy, M.

    Published 2020
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  5. 5
    The separation of emulsified water/oil mixtures through adsorption on plasma-treated polyethylene powder

    The separation of emulsified water/oil mixtures through adsorption on plasma-treated polyethylene powder by Abdulkareem A.

    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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  6. 6
    Enhancing the Remediation Capacity of Mercury Ions from Fluorescent Lamp Using Roasted Date Pits and Its Modified Forms

    Enhancing the Remediation Capacity of Mercury Ions from Fluorescent Lamp Using Roasted Date Pits and Its Modified Forms by Al-Ghouti, Mohammad A.

    Published 2016
    “…Moreover, at pH 8 and pH 10, the adsorption decreased with an average Hg concentration of 3.5 and 8.01 ppm, respectively. …”
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  7. 7
    Novel fluorinated surfactants for enhanced oil recovery in carbonate reservoirs

    Novel fluorinated surfactants for enhanced oil recovery in carbonate reservoirs by Al-Amodi, Adel O.

    Published 2016
    “…An adsorption isotherm showed that the maximum adsorption of surfactant‐A was 1 mg per g of rock. Core flooding experiments showed 42 % additional oil recovery using 2.5 g/L (2500 ppm) HPAM and 0.001 g/g (0.1 mass%) amphoteric surfactant at 90 °C.…”
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  8. 8
    Development of pH-Controlled Aluminum-Based Polymeric Gel for Conformance Control in Sour Gas Reservoirs

    Development of pH-Controlled Aluminum-Based Polymeric Gel for Conformance Control in Sour Gas Reservoirs by Shamlooh M.

    Published 2020
    “…The results reveal that aluminum acetate, among the screened salts, has a controllable gelation time at pH conditions between 3.5 and 8.5 and is the most stable in the temperature range 25–100 °C. …”
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  9. 9
    The Separation of Emulsified Water/Oil Mixtures through Adsorption on Plasma-Treated Polyethylene Powder

    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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  10. 10
    Evaluation of the inhibition performance of piperazine-based polyurea towards mild steel corrosion: The role of keto-enol tautomerization

    Evaluation of the inhibition performance of piperazine-based polyurea towards mild steel corrosion: The role of keto-enol tautomerization by Abdulazeez, Ismail

    Published 2022
    “…The presence of PUCorr at 100 ppm decreases the corrosion current density from 30.3 to 3.05 μA/cm2 in 0.5 M NaCl at room temperature, exhibiting a remarkable inhibition efficiency of 94.5%. …”
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