بدائل البحث:
a decrease » _ decreased (توسيع البحث), _ decreases (توسيع البحث)
w decrease » _ decreased (توسيع البحث), _ decreases (توسيع البحث)
a decrease » _ decreased (توسيع البحث), _ decreases (توسيع البحث)
w decrease » _ decreased (توسيع البحث), _ decreases (توسيع البحث)
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An Improved Fault Tolerant Five-Phase Induction Machine Using A Combined Star/Pentagon Single Layer Stator Winding Connection
منشور في 2015"…A 1kW prototype machine is used for experimental verification.…"
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Wind energy potential along the onshore and offshore Qatar
منشور في 2020"…cant increase or decrease of wind power around Qatar in the last 40 years in most of the locations, while there is a slight decreasing trend in the o?…"
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Enhanced oil recovery using hyperbranched polyglycerol polymer-coated silica nanoparticles
منشور في 2021"…dem improved as the Csur and pH decreased, with maximum values of 98.8% and 98.5% achieved at Csur = 0.05 g/L and a pH = 4, respectively. …"
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Application of magnetic nanoparticles for the removal of oil from oil-in-water emulsion: Regeneration/reuse of spent particles
منشور في 2021"…Up to 98.6% of the %Roil was attained for Coil in the range from 0 to 800 mg/L using only a DMNP of 10 mg/L. A lower DMNP of 5 mg/L recovered up to 55.6% of the oil, while increasing the DMNP > 50 mg/L did not significantly affect the %ηdem nor the %Roil. …"
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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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A new design of solar tower system amplified with a thermoelectric unit to produce distilled water and power
منشور في 2021"…Additionally, the results show that employing TEGs in the primary system leads to the net output power, energy, and exergy efficiencies increment about 941 kW, 3.7%, and 5.28%, respectively. Based on the parametric analysis with an increasing inlet temperature of the gas turbine, the net output power, energy, and exergy efficiencies, and volume flow rate of the freshwater increase. …"
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Functionalization of silica-coated magnetic nanoparticles as powerful demulsifier to recover oil from oil-in-water emulsion
منشور في 2021"…The Fe–Si-MNP exhibited excellent %Soil, reliable stability, and high magnetization values ranging between 46.1 and 80.2 emu/g. adding a 5 nm silica layer on the surface of the Fe–Si-MNP (i.e., Fe–Si-1) protected them from oxidation conditions, extended their service life, and achieved a %Soil of ∼96.3%. …"
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Numerical evaluation of the thermal performance of a near-surface earth-to-air heat exchanger with short-grass ground cover: A parametric study
منشور في 2021"…By increasing the soil thermal conductivity from 1 to 5 W m−1 K−1 the outlet temperature decreased by about 4.4 °C.…"
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Bioactive PCL matrices with a range of structural & rheological properties
منشور في 2016"…Increased loading of PEG to 25% (w/w) caused a 10-fold increase in the melt flow index, a similar increase in the elongational viscosity, and a contact angle decrease of 10°, indicating that the resultant fluid was becoming more Newtonian. …"
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