يعرض 481 - 500 نتائج من 975 نتيجة بحث عن '(( 12 c decrease ) OR ( 5 ((((step decrease) OR (we decrease))) OR (a decrease)) ))', وقت الاستعلام: 0.24s تنقيح النتائج
  1. 481

    Inter-annual variability and distribution of aerosols during winters and aerosol optical thickness over Northeastern Pakistan حسب Shahid, M. Z.

    منشور في 2020
    "…ir pollution during winters over north-eastern (NE) Pakistan (71–74.5 E, 28–34 N) is a major challenge that affects human health, climate and daily life. …"
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  2. 482

    Physico-mechanical Properties of Sustainable Building Material Based Gypsum and Recycled Polyethylene Waste حسب Amina, Djoudi

    منشور في 2023
    "…Results proved the positive effect of the introducing of PET particles in the matrix of gypsum mortar, the lightening of this material but a decrease of mechanical properties was recorded comparing in to reference without polyethylene particles. …"
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  3. 483

    Thermoelectric properties of SbNCa3 and BiNCa3 for thermoelectric devices and alternative energy applications حسب Bilal, M.

    منشور في 2014
    "…The maximum values of thermal conductivity are 92×1014 W/m K s and 88×1014 W/m K s for SbNCa3 and BiNCa3 respectively at a temperature of 900 K. The peak values of 5×1020/Ω m s and 5.2×1020/Ω m s are achieved for n-type SbNCa3 and BiNCa3 respectively at a temperature of 300 K. …"
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  4. 484

    Synthesis and electrochemical properties of nickel oxide/carbon nanofiber composites حسب Al-Enizi, Abdullah M.

    منشور في 2014
    "…The specific capacitance (SC) was found to be highest (738 F g−1) at a calcination temperature of 400 °C. The charge transfer resistance (Rp) decreased as the calcination temperature was increased. …"
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  5. 485
  6. 486

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

    منشور في 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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  7. 487

    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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  8. 488

    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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  9. 489
  10. 490
  11. 491
  12. 492
  13. 493

    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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  14. 494

    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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  15. 495
  16. 496

    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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  17. 497

    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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  18. 498

    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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  19. 499

    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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  20. 500