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2020 e » 2020 _ (توسيع البحث)
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801
Application of Fe3O4 magnetite nanoparticles grafted in silica (SiO2) for oil recovery from oil in water emulsions
منشور في 2021"…Using an MDdose as low as 10 mg/L attained a %ηdem in the range of 93%–94.3% for O/W mixtures with Coil < 2000 mg/L, which slightly decreased to ∼90% for higher concentrations. …"
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802
Thermodynamic analysis of solar-driven chemical looping steam methane reforming over Cr2O3/Cr redox pair
منشور في 2019"…The total solar energy required to drive the CS process (Q-solar-CS) rises by 1498.8 kW as the CH4/Cr2O3 molar ratio upsurges from 0.5 to 3. In case of the CSH process, when the TL increases from 500 to 1400 K, the Q solar CSH decreases by 54.5 kW and further surge in the TL from 1400 to 2050 K yields into upturn in the Q-solar-CSH by 108.5 kW. …"
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803
Effect of graphene loading on thermomechanical properties of poly(vinyl alcohol)/starch blend
منشور في 2015"…Polymer nanocomposites based on poly(vinyl alcohol) (PVA)/starch blend and graphene were prepared by solution mixing and casting. Glycerol was used as a plasticizer and added in the starch dispersion. …"
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804
Evaluation of the Mechanical Properties of AA 6063 Processed by Severe Plastic Deformation
منشور في 2015"…HA of AA6063 increased the fatigue and fretting fatigue lives of SPD + HT-processed samples at low cycle by 15.5 and 18.4 pct respectively; however, at high cycle, HA had reverse effects, whereby the fatigue and fretting fatigue lives of SPD + HT-processed samples decreased by 16.7 and 30 pct, respectively.…"
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805
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806
Prospects Of Amino Acids And Ionic Liquids As Natural Gas Hydrate Inhibitors For Offshore Flow Assurance
منشور في 2018"…The results show that the selected amino acids and ionic liquids exhibit dual functional behaviour by providing the temperature shift of around 1.5-2.3 oC and delaying the hydrate formation time from 0.5-1.5 hr. …"
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807
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808
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809
DEVELOPMENT AND EVALUATION OF VIRTUAL REALITY EXERGAMES FOR UPPER LIMB AMPUTEE REHABILITATION
منشور في 2024"…User evaluation revealed positive user satisfaction(ratings: 3.8 to 4.5 on a 5-point Likert Scale). Quantitative analysis of the box and block test scores across 10 healthy participants for the motor skills assessment revealed a strong correlation (r = 0.99, P < 0.001) between training sessions and the evaluation scores. …"
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810
Oxygen passivation as effective technique for tailoring the nature of band gap of silicon nanowires
منشور في 2015"…Surprisingly, extensive oxidation dramatically decreases the silicon nanowire band gap down to 0.26 eV. …"
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811
Centrifugal Compressor Spiral Dry Gas Seal Simulation Working at Reverse Rotation
منشور في 2013"…Unidirectional dry gas seal may experiences reverse rotation when equipped in a centrifugal compressor. This paper describes how the reverse rotation effects on the spiral unidirectional dry gas seal performance and pressure distribution inside the gas film, also an investigation of using a different herringbone shape grooves configurations has been done using ANSYS FLUENT 14.5 CFD simulation. …"
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812
Experimental Investigation of Foam drilling fluid using Visualization Technique
منشور في 2021"…The experiments were conducted in a 6.16 m long horizontal pipe with 2.5 in. inner diameter and 4.5 in. outer diameter and annular diameter ratio of 1.8. …"
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813
Ni-P-TiO2 Composite coatings on copper produced by sol-enhanced electroplating
منشور في 2014"…The optimal mechanical properties can be achieved when the sol concentration is 12.5 mL/L. In this case, the microhardness of Ni-P-12.5 mL/L TiO2 composite coatings can reach ~710 HV while the Ni-P is ~520 HV. …"
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814
Nutritional quality and health risk of pepper fruit as affected by magnesium fertilization.
منشور في 2020"…As a result, Mg fertilization decreased the comprehensive nutrition level of pepper by 16.6%. …"
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815
Pharmacoeconomic evaluation of voriconazole vs. liposomal amphotericin B in empiric treatment of invasive fungal infections in Turkey
منشور في 2013"…The current pharmacoeconomic evaluation investigated the use of liposomal amphotericin B (LAmB) and voriconazole for the empiric treatment of IFI in the Turkish setting.Methods: Decision analytic modelling was used to create a pathway for patient treatment with a 5-point composite outcome measure. …"
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816
Highly active, durable and pH-universal hybrid oxide nanocrystals for efficient oxygen evolution
منشور في 2017"…Herein, hybrid Ptx-NiMnO3 nanocrystals (NCs) (x = 0.1, 0.5, and 1.0 mM) were synthesized by a modified citrate-gel approach and utilized as efficient catalysts towards the oxygen evolution reaction (OER). …"
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817
Sensitization to common food and inhalant allergens in children attending Allergy and Asthma Pediatric Clinic in Doha, Qatar
منشور في 2009"…The prevalence of sensitization to FA decreased as age increases (35% at 0-2 years vs. 32.5% at the age 6-10 years). …"
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818
Impact of trace noble metals on the catalytic performance of LaNiMgO towards methane dry reforming
منشور في 2024"…In addition, the presence of noble metals at the Ni surface afforded a high density of adsorbed oxygen species, which enhanced coke gasification and consequently decreased the extent of deactivation of the catalysts by coke formation. …"
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819
Effect of gamma irradiation on the microstructure and morphology of polyethylene oxide and polyvinyl alcohol blends
منشور في 2010"…Thin films of a blend of 90, 75, 50 (wt/wt%) percentage of polyethylene oxide and polyvinyl alcohol were synthesized and irradiated with 5, 25, 50, 100 and 200 kGy. …"
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820
Mechanical properties and surface characteristics of an AA6060 alloy strained in tension at cryogenic and room temperature
منشور في 2015"…When the temperature decreases, the yield strength, the ultimate tensile strength and ductility to fracture are drastically increased from 217.2 MPa, 252.4 MPa, 14.5% to 251.6 MPa, 335.9 Mpa, 21.5% respectively, and the average diameter of dimples decreases from ~8 µm to ~3 µm. …"
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