Showing 401 - 420 results of 894 for search '(( 5 ((steel decrease) OR (mean decrease)) ) OR ( 5 ((g decrease) OR (a decrease)) ))', query time: 0.18s Refine Results
  1. 401
  2. 402

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

    Published 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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  3. 403
  4. 404
  5. 405

    High-Rate Anaerobic Digestion of Waste Activated Sludge by Integration of Electro-Fenton Process by Feki, Emna

    Published 2020
    “…Production of biogas was also found to improve during semi-continuous fermentation of EF-pretreated sludge conducted in a lab-scale reactor. In comparison to raw sludge, EF-pretreated sludge produced the highest biogas yield (0.81 L biogas/g VS) with a high COD removal rate, reaching 96.6% at an organic loading rate (OLR) of 2.5 g VS/L. d. …”
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  6. 406

    Forecast of the outbreak of COVID-19 using artificial neural network: Case study Qatar, Spain, and Italy by Shawaqfah M.

    Published 2021
    “…The first wave of the pandemic outbreak of the novel Coronavirus (SARS-CoV-2) began in September 2019 and continued to March 2020. …”
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  7. 407

    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 2.5g/L (2500 ppm) HPAM and 0.001 g/g (0.1 mass%) amphoteric surfactant at 90 °C.…”
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  8. 408

    Interface modification of compatibilized polyethylene terephthalate/polypropylene blends: Effect of compatibilization on thermomechanical properties and thermal stability by Inuwa, Ibrahim M.

    Published 2015
    “…PET, PP, and SEBS-g-MAH were melt-blended in a single stLGusing the counter rotating twin screw extruder with compatibilizer concentrations of 0, 5, 10, and 15 phr, respectively. …”
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  9. 409

    Effect of electroless bath composition on the mechanical, chemical, and electrochemical properties of new NiP-C 3 N 4 nanocomposite coatings by Fayyad E.M.

    Published 2019
    “…An electroless bath of 0.5g L−1 C3N4 offered a nanocomposite coating with the highest microhardness and superior corrosion resistance. …”
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  10. 410
  11. 411

    Phenolic contents-based assessment of therapeutic potential of Syzygium cumini leaves extract by Ahmed, Rashid

    Published 2019
    “…The DPPH assay demonstrated a higher antioxidant potential (IC-50 value of 133 μg/ml), which was comparable to the IC-50 of ascorbic acid (122.4 μg/ml). …”
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  12. 412

    Failure mode analysis for single-phase Multi-level qZSI interfacing PV system to utility grid by Rahman, Syed

    Published 2017
    “…The power deficit due to a failure of the module is reflected as a decrease in the grid current reference. …”
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  13. 413

    Re-emission of slow positrons from tungsten at elevated temperatures by Al-Qaradawi, I. Y.

    Published 2002
    “…Irrespective of target history, no sharpening of the energy spectrum of re-emitted positrons was observed as the remoderator temperature was increased. Further, a steady decrease in the apparent re-emitted positron intensity was observed, attributed primarily to the increase in positronium formation, as the temperature of the foil was increased from 20 to 500 °C. …”
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  14. 414

    Acute and chronic toxicity assessments of 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) on the calanoid copepod Acartia clausi: Effects on survival, development, sex-ratio and... by Emna, Djebbi

    Published 2022
    “…Embryos showed non-monotonic dose-response and hatching success was significantly reduced at low realistic concentrations of E2 (0.005, 0.5, and 5 μg L-1) and EE2 (0.05 and 5 μg L-1).Survival, development and sex ratio of A. clausi to EE2 exposure at 1 and 100 μg L-1 were also determined during a life cycle experiment. …”
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  15. 415

    Improvement of both lipid and biomass productivities of Qatar Chlorocystis isolate for biodiesel production and food security by Saadaoui, Imen

    Published 2018
    “…QUCCCM14, which was not previously known as a promising strain. Indeed, culturing QUCCCM14 using f/2 medium with 10× NaH2PO4 (0.15 g L−1 NaNO3 and 5.6 mg L−1 NaH2PO4) resulted in an improvement of 3.178 folds the lipid productivity reaching 56.121 mg L−1 day−1 and enhanced the biomass productivity reaching 141.363 mg L−1 day−1, simultaneously. …”
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  16. 416

    Application of magnetic nanoparticles for the removal of oil from oil-in-water emulsion: Regeneration/reuse of spent particles by Elmobarak W.F.

    Published 2021
    “…The observed %Roil at a pH of 4 and Csur of 0.05 g/L was observed to be > 90 ± 0.1% and decreased by either rising the pH to 7 or increasing the Csur to 0.1 g/L. …”
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  17. 417

    Mobile Epifauna Associated To Artificial Substrates In Offshore Qatari Waters by Abdulaziz Aziz, Naeem

    Published 2019
    “…Multivariate analysis for abundance and biomass showed that both Site and Depth, as well as their interaction, had significant effects on the mobile macrofaunal community. A general trend of total abundance and average number of taxa decreasing with depth was observed, although with some notable exceptions. …”
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  18. 418

    Financial Intermediaries and Capital Market Development in Nigeria by Ilo, Bamidele M.

    Published 2018
    “…The result revealed that in the long run, credit to private sector and money supply will lead to an increase in capital market development while banks total savings and government expenditure results to a decrease in capital market development in the long run. …”
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  19. 419

    An Overview of Solid Waste Management and Plastic Recycling in Qatar by Al-Maaded, M.

    Published 2012
    “…The analysis showed that Qatar produced around 2,000,000 tons of solid municipal waste annually, corresponding to a daily generation rate per capita of about 2. 5 kg. …”
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  20. 420

    Self-healing performance of smart coatings modified with different corrosion inhibitors. by Habib, Sehrish

    Published 2020
    “…EIS measurements revealed the decent corrosion inhibition efficiency of these inhibitors in order of DDA>NMTU. As a result, they are a favorable solution for longer endurance of coated piping steel and decreased operation expense contributing to economic saves, materials reliability and safety…”
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