Showing 461 - 480 results of 1,509 for search '(( 1 10 decrease ) OR ( 5 ((((step decrease) OR (mean decrease))) OR (a decrease)) ))', query time: 0.21s Refine Results
  1. 461

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

    Published 1994
    “…1). Organic Hg (0.6 ng L?1) contributed only 5.0% of total Hg. …”
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  2. 462

    DC conductivity and Seebeck coefficient of nonstoichiometric MgCuZn ferrites by Madhuri, W.

    Published 2017
    “…Nonstoichiometric series of Mg0.5-xCuxZn0.5Fe1.9O4-? where x = 0.0, 0.1, 0.15, 0.2 and 0.25 has been synthesized by conventional solid state reaction route. …”
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  3. 463
  4. 464

    Effects of soaking, acidity and temperature on cadmium and lead removal from rice by Al-Naimi M.

    Published 2020
    “…A decrease in lead and cadmium concentrations were observed with increasing time of soaking. …”
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  5. 465
  6. 466

    Effect of left atrial ligation-driven altered inflow hemodynamics on embryonic heart development: clues for prenatal progression of hypoplastic left heart syndrome. by Salman, Huseyin Enes

    Published 2021
    “…According to our CFD analysis, LAL results in an immediate decrease in the left AV canal WSS levels for 3.5-day (HH21) pre-septated hearts. …”
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  7. 467

    Tobacco Use and Its Health Effects among Professional Athletes in Qatar by Chaabane, Zaina

    Published 2016
    “…The objective of the study was to determine the effects of tobacco use on selected markers of health and lung function in professional athletes. A total of 108 male professional athletes participated in the study from ten ball game teams in the same sport league in Qatar (age = 26.4 ± 5.1 yrs, height = 190.6 ± 11.9 cm, and weight = 91.5 ± 16.4 kg). …”
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  8. 468

    Influence of the heteroatom on the optoelectronic properties and transistor performance of soluble thiophene-, selenophene- and tellurophene-vinylene copolymers by Al-Hashimi, Mohammed

    Published 2016
    “…The optical band gap of the polymers is shown to systematically decrease as the size of the heteroatom is increased, mainly as a result of a stabilization of the LUMO energy, resulting in a small band gap of 1.4 eV for P3TeV. …”
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  9. 469

    Enhancing the production of biogas through anaerobic co-digestion of agricultural waste and chemical pre-treatments by Almomani F.

    Published 2020
    “…The results revealed that the highest cumulative methane production (CMP) of 297.99 NL/kgVS can be generated by co-digestion of ASWs and CD at a ratio of 60:40. Further improvement was achieved via alkalinity treatment with 1.0 g of NaHCO3/gVS leading to decrease in lignin, cellulose, and hemicellulose contents of feedstock by 3.5%, 10.5% and 15.9%, respectively, converting them to soluble fractions and improving the CMP by 11.2–29.7% based on substrate quality. …”
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  10. 470

    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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  11. 471

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

    Published 2021
    “…The model sensitivity was analyzed using the root mean square error (RMSE), the mean absolute percentage error and the regression coefficient index R2, which yielded highly accurate values of the predicted correlation for the infected and dead cases of 0.99 for the dates considered. …”
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  12. 472
  13. 473

    Development of CuAg/Cu2O nanoparticles on carbon nitride surface for methanol oxidation and selective conversion of carbon dioxide into formate by Nazir, Roshan

    Published 2020
    “…In a two-step process, the Cu NPs are synthesized first on CN surface by adsorbing Cu2+ precursors and reducing them by NaBH4. …”
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  14. 474

    Enzymatic treatment of peanut butter to reduce the concentration of major peanut allergens by Yu, Jianmei

    Published 2013
    “…Treatment of peanut butter with a combination of trypsin and alpha-chymotrypsin resulted in a decrease in IgE-binding, suggesting that enzymatic treatment has the potential to reduce the allergenicity. …”
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  15. 475

    The spectral and morphological studies of the conductive polyaniline thin film derivatives by the in situ copolymerization by Waware, Umesh S.

    Published 2017
    “…The particle size varies in the range of 510,000 nm for polyaniline while in case of copolymer it lies in a narrow range of 100–150.…”
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  16. 476

    The burden of ischemic heart disease and the epidemiologic transition in the Eastern Mediterranean Region: 1990-2019 by Sadeghi, Masoumeh

    Published 2023
    “…The age-standardized prevalence of IHD in the EMR increased from 5.0% to 5.5% between 1990 and 2019, while it decreased at the global level. …”
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  17. 477
  18. 478

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

    Published 2021
    “…Due to the disadvantages of using pure biodiesel in engines, it was used as B50 (a blend of 50% diesel and 50% biodiesel). 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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  19. 479

    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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  20. 480

    Low electro-synthesis potentials improve permselectivity of polymerized natural phenols in biosensor applications by Monti, Patrizia

    Published 2017
    “…Polymers were obtained by means of constant potential amperometry, instead of cyclic voltammetry, in order to achieve multiple polymerizations, hence decreasing the time of realization and variability. …”
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