يعرض 481 - 500 نتائج من 975 نتيجة بحث عن '(( 12 c decrease ) OR ( 5 ((we decrease) OR (((a decrease) OR (nn decrease)))) ))', وقت الاستعلام: 0.35s تنقيح النتائج
  1. 481

    Fabrication of Selective Sensors for Hg2+ Traces in Water Using Graphene Decorated with Metal Nanoclusters حسب Ayesh, Ahmad I.

    منشور في 2016
    "…Two batches of sensors were tested in this work: i) sensors based on graphene only, and ii) sensors based on graphene and percolating films of Au nanoclusters, each has a thickness of 5 nm. For nanocluster deposition, each graphene sample was fixed on a cryostat finger. …"
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  2. 482

    Evaluation of different personalized ventilation air terminal devices: Inhalation vs. clothing-mediated exposures حسب Al Assaad, Douaa

    منشور في 2021
    "…Increasing the flow to 10 l/s led to reductions of 89% in exposure and 56.5% in deposition. A VDG delivering 5 l/s reduced exposure by 33% while deposition reduction was negligible at 3%. …"
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  3. 483
  4. 484
  5. 485
  6. 486
  7. 487

    Tribological studies of nanomodified mineral based multi-grade engine oil حسب Laad, M.

    منشور في 2017
    "…Wear rate for lubrication oil without nanoadditives was also found to be decreased with increase in sliding speed. Experimental results prove that nanoparticles can be used as a multifunctional additive in lubricating oil to enhance its tribological properties.…"
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  8. 488

    Enhancement of mechanical and corrosion resistance properties of electrodeposited NiP-TiC composite coatings حسب Fayyaz O.

    منشور في 2021
    "…Vickers microhardness and nanoindentation results demonstrate the increase in the hardness with an increasing amount of TiC particles attaining its terminal value (593HV100) at the concentration of 1.5 g L−1. Further increase in the concentration of TiC particles results in a decrease in hardness, which can be ascribed to their accumulation in the Ni–P matrix. …"
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  9. 489
  10. 490

    A systematic review of stability of medicines used in emergency medical service settings حسب Rachid, Ousama

    منشور في 2020
    "…Background: Temperature, among several environment conditions like humidity, is known to impact medicine stability 1,2 . In emergency medical service (EMS) settings, it is often challenging to control these conditions. …"
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  11. 491

    Bryophyte cover and richness decline after 18 years of experimental warming in alpine Sweden. حسب Alatalo, Juha M

    منشور في 2020
    "…Experimental warming with open-top chambers (OTCs) was applied for 18 years to a mesic meadow and a dry heath alpine plant community. …"
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  12. 492

    Differentiation of human olfactory bulb-derived neural stem cells toward oligodendrocyte. حسب Marei, Hany E

    منشور في 2018
    "…The differentiation medium, containing cAMP, PDGFA, T3, and all-trans-retinoic acid (ATRA), promotes OBNSCs to generate mostly oligodendrocytes (OLs) displaying morphological changes, and appearance of long cytoplasmic processes. OBNSCs showed, after 5 days in OLs differentiation medium, a considerable decrease in the number of nestin positive cells, which was associated with a concomitant increase of NG2 immunoreactive cells and few O4(+)-OPCs. …"
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  13. 493

    Effects of combined calcium hypochlorite and chlorine dioxide on drinking water quality in Qatar and disinfection by-products formation حسب Mohamed, Elsamoul H.

    منشور في 2017
    "…The bottles were spiked with Ca(ClO)2 in sequence to give concentration of 0.2, 0.4, 0.6, 0.8, 1.0, and 1.2 mg/L as free chlorine. The mixtures were stored for 7 days at 25°C in the dark then heated to 45°C for two days more, and analyzed daily for physical and chemical parameters. …"
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  14. 494
  15. 495
  16. 496

    Prospects of Biocrude Production Potential from Local Diatom حسب Al-Namimi, Sara Mohammed

    منشور في 2020
    "…A marine diatom Nitzchia reversa was grown in 5 sq. m open raceway pond (10 cm culture depth, 500 L culture volume) in the Qatari desert environment. …"
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  17. 497

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

    منشور في 2021
    "…The carbon monoxide and oxygen concentrations of the exhaust gases also decreased by 17.35% and 9.5%, respectively compared to B50. …"
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  18. 498

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

    منشور في 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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  19. 499

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

    منشور في 1994
    "…m sediment fraction. There is a general trend for all Hg species determined in water and sediments to decrease seaward. …"
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  20. 500