يعرض 561 - 580 نتائج من 897 نتيجة بحث عن '(( 5 c decrease ) OR ( 5 ((fold decrease) OR (((a decrease) OR (mean decrease)))) ))', وقت الاستعلام: 0.17s تنقيح النتائج
  1. 561

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

    منشور في 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). …"
    احصل على النص الكامل
    احصل على النص الكامل
  2. 562

    Study the efficiency of Ultrasonic Technology in Removal of Algae from Surface Waters حسب Maarouf, Alaa

    منشور في 2024
    "…The dominant algae genus was identified using a light microscope, and ultrasound waves with a low frequency of 40 kHz and a power density of 0.024 W/cm³ were applied at different time intervals (0 – 80 minutes) at time intervals of 5 minutes. …"
    احصل على النص الكامل
  3. 563

    Magnetorheological damper with external excitation for more efficient control of vehicles? dynamics حسب Sassi S.

    منشور في 2018
    "…The experimental tests made on the first prototype featuring this new technology was promising. The excitation of a set of 12 coils surrounding the body of the damper, by an electric current of 5 A, managed to increase the damping coefficient by up to 75%. …"
    احصل على النص الكامل
    احصل على النص الكامل
  4. 564
  5. 565

    Effect of acute melatonin administration on physiological response to prolonged exercise حسب Souissi, Amine

    منشور في 2020
    "…Blood samples were taken before and after exercise to measure the hemoglobin (Hb), hematocrit (Hct), sodium (Na+) and potassium (K+) concentrations. Melatonin decreased resting Tre by ≈ 0.2°C, but it did not attenuate the increase in core temperature during exercise. …"
    احصل على النص الكامل
    احصل على النص الكامل
  6. 566

    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. …"
    احصل على النص الكامل
    احصل على النص الكامل
  7. 567
  8. 568

    Mechanical properties of gamma irradiated TiO2NPs/MWCNTs/LDPE hybrid nanocomposites حسب Zagho M.M.

    منشور في 2020
    "…Furthermore, the % of the total elongation at break is decreased after incorporating MWCNTs. The % of the total elongation at break after exposure to a dosage of 25 kGy was reduced as a result of chain scissions and molecular weight decrease. …"
    احصل على النص الكامل
    احصل على النص الكامل
  9. 569

    Microbially induced calcite precipitation in calcareous soils by endogenous Bacillus cereus, at high pH and harsh weather حسب Oualha, Meriam

    منشور في 2020
    "…Microbially induced calcite precipitation (MICP) improves the physical properties of soils by increasing the solid content, decreasing the pore sizes and improving the rigidity of the particle-to-particle contact ending with a better mechanical and geotechnical performances of the soils. …"
    احصل على النص الكامل
    احصل على النص الكامل
  10. 570

    Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process حسب Reddya, M. Penchal

    منشور في 2017
    "…Results showed that, as the content of hard ceramic particles increases, it improves overall mechanical properties including microhardness, 0.2% yield strength, ultimate compression/tensile strength, and Young's modulus while the ductility and co-efficient of thermal expansion decreases. XRD patterns and SEM/EDS mapping images show a uniform distribution of Al2O3 particles in the Al matrix. …"
    احصل على النص الكامل
    احصل على النص الكامل
  11. 571

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

    منشور في 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. …"
    احصل على النص الكامل
    احصل على النص الكامل
  12. 572
  13. 573

    Food shopping, preparation and consumption practices in times of COVID-19: case of Lebanon حسب Ben Hassen, Tarek

    منشور في 2022
    "…Indeed, the study outcomes suggested (1) a move toward healthier diets; (2) a rise in the consumption of domestic products due to food safety concerns; (3) a change in the grocery shopping behaviors (with a rise in online shopping); (4) a surge of food stockpiling; and (5) a decrease in household food wastage. …"
    احصل على النص الكامل
    احصل على النص الكامل
  14. 574
  15. 575

    Epidemiology of herpes simplex virus type 2 in sub-Saharan Africa: Systematic review, meta-analyses, and meta-regressions حسب Harfouche, Manale

    منشور في 2021
    "…Background: Herpes simplex virus type 2 (HSV-2) infection is a prevalent, sexually transmitted infection with a sizable disease burden that is highest in sub-Saharan Africa. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
  16. 576

    Energy conversion of heat from abandoned oil wells to mechanical refrigeration - Transient analysis and optimization حسب Al-Khawaja, Mohammed

    منشور في 2012
    "…Results show that at realistic and conservative conditions, the geofluid temperature considerably decreases for the first four months of operation (by an average of 30 °C) and tends to be constant after half a year of operation. …"
    احصل على النص الكامل
    احصل على النص الكامل
  17. 577

    Assessment of SnO2 nanoparticles' impact on the growth of Picochlorum maculatum algae حسب Bounnit, Touria

    منشور في 2022
    "…To determine the effect of SnO2 nanoparticles on Picochlorum maculatum - isolated from a Qatar marine environment, algal growth media are amended with different nanoparticle concentrations (1, 5, 25, 50, and 100 mg L−1) and the culture was observed for 72 h. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
  18. 578

    Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process حسب Reddy, M. Penchal

    منشور في 2017
    "…Results showed that, as the content of hard ceramic particles increases, it improves overall mechanical properties including microhardness, 0.2% yield strength, ultimate compression/tensile strength, and Young's modulus while the ductility and co-efficient of thermal expansion decreases. XRD patterns and SEM/EDS mapping images show a uniform distribution of Al2O3 particles in the Al matrix. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
  19. 579

    Use Of Cement By-Pass Dust In Soil Stabilization حسب Taha, Ramzi

    منشور في 2001
    "…Mixtures were subjected to the following tests: (1) Atterberg limits, (2) pH, (3) compaction, (4) California Bearing Ratio (CBR), (5) swell percent, and (6) swell pressure. Results indicate that as cement by-pass dust content increases, the swell percent and maximum dry density decrease while the pH and CBR values tend to increase. …"
    احصل على النص الكامل
  20. 580