Application of Fe3O4 magnetite nanoparticles grafted in silica (SiO2) for oil recovery from oil in water emulsions حسب Elmobarak W.F.

"…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. …"
احصل على النص الكامل
احصل على النص الكامل

Recycled Waste Tires Management in Constructions حسب Hamid, Salma Mohamed

"…The LCCA results show that the rubberized concrete (RC2), obtained by replacing 5% of aggregate and mixing it with seawater, is more cost-effective than RC1, with a cost savings of 30%.LCCA data were acquired by investigating thirteen concrete mixes (a control mix; 5%, 10%, and 20% rubber aggregate substitutions mixed with freshwater; and 0%, 5%, and 10% rubber aggregate substitutions mixed with seawater). …"
احصل على النص الكامل

Morphology, nucleation, and isothermal crystallization kinetics of poly(butylene succinate) mixed with a polycarbonate/MWCNTs masterbatch حسب Gumede, Thandi P.

"…The nanocomposites contained 0.5, 1.0, 2.0, and 4.0 wt% MWCNTs. Differential scanning calorimetry (DSC), small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) results indicate that the blends are partially miscible, hence they form two phases (i.e., PC-rich and PBS-rich phases). …"
احصل على النص الكامل
احصل على النص الكامل

The effect of genetic and nongenetic factors on warfarin dose variability in Qatari population. حسب Bader, Loulia

احصل على النص الكامل
احصل على النص الكامل

The effect of post-lunch napping on mood, reaction time, and antioxidant defense during repeated sprint exercice حسب Romdhani, Mohamed

احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Conversion of Organic Municipal Wastes into Biochars and their Effect on Fertility Parameters of Normal and Sabkha Soils of Qatar حسب Ahmedna, Mohamed

"…To achieve the latter, durable and sustainable alternatives for municipal solid waste management are needed, especially since Qatar tops most nations in terms of per capita solid waste generation with nearly 2.5 million tons/year of which 60% consists of organic waste. …"
احصل على النص الكامل
احصل على النص الكامل

INVESTIGATING THE IMPACT AND MECHANICAL PROPERTIES OF RECLAIMED RUBBER AND SAWDUST COMPOSITE حسب MATAR, MOHAMMED S. A.

"…Reclaimed rubber composites of different wood content were manufactured for performance evaluation. Samples of 0, 1, 5, 10, 15, and 20% weight content of sawdust were manufactured and tested to understand the effect of wood content on performance. …"
احصل على النص الكامل

Methane production enhancement from Tetraselmis biomass co-digestion using frying oil residue as co-substrate and ultrasonication as pretreatment حسب Firas, Feki

احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Methane production enhancement from Tetraselmis biomass co-digestion using frying oil residue as co-substrate and ultrasonication as pretreatment حسب Firas, Feki

احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Experimental Investigation on the Flexural Capacity of Reinforced Concrete Beams with Treated Wastewater and Recycled Concrete Aggregates حسب Abushanab, Abdelrahman

احصل على النص الكامل
احصل على النص الكامل

Development of an Air-Cooled Induction Manifold for Diesel Engines in Hot and Humid Climate حسب Elrentisy, Mohamed H.

"…It was found that running the diesel engine at 20 °C inlet air temperature compared with 45 °C, the average ambient air temperature during summer in Qatar could increase the in-cylinder peak pressure by 10%, and the volumetric efficiency of the engine by 8.5%. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Thermodynamic analysis of solar-driven chemical looping steam methane reforming over Cr2O3/Cr redox pair حسب Bhosale, Rahul

احصل على النص الكامل
احصل على النص الكامل

أثر برنامج تدريبي قائم على مهارات الذكاء العاطفي في تطوير الاتجاهات نحو ظاهرة التنمر المدرسي لدى طالبات الصف العاشر في سلطنة عمان... حسب بنت خليفة بن محمد الخنبشية, خولة

احصل على النص الكامل
احصل على النص الكامل

Screening of Qatari Microalgae and Cyanobacteria for Application in CO2 Utilization حسب Schipper, Kira

"…The tolerance of the strains to increased concentrations of CO2 in the gas phase was also studied for CO2 concentrations ranging from 5% to 30% (v/v). With productivities of 53.7 ± 11.4, 162.2 ± 5.4, 333.8 ± 29.1 and 312.8 ± 12.8 mg L-1 d-1 for 5, 10, 20 and 30% CO2 respectively, Tetraselmis sp. showed that a significant productivity increase could be obtained with increased CO2 concentrations. …"
احصل على النص الكامل
احصل على النص الكامل

Long-Term Variability of Aerosol Concentrations and Optical Properties over the Indo-Gangetic Plain in South Asia حسب Shahid, Imran

"…In contrast, AOD values decreased during spring by −5%, −12%, and −5 over Islamabad, Lahore, and Delhi, respectively. …"
احصل على النص الكامل
احصل على النص الكامل

In patients with Chronic Heart Failure Which Polypharmacy Pheno-groups are associated with adverse health outcomes? (Polypharmacy Pheno-groups and Heart failure outcomes) حسب Mohammed Ibn-Mas'ud, Danjuma

"…Each patient's medications for the past four months were tallied, and a definitional threshold of ≤4, ≥5, ≥10 medications was established. The primary outcome was all-cause mortality within the study period. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Brain microstructural changes support cognitive deficits in HIV uninfected children born to HIV infected mothers حسب Santosh K., Yadav

احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Short-Term Effects of Experimental Warming and Precipitation Manipulation on Soil Microbial Biomass C and N, Community Substrate Utilization Patterns and Community Composition حسب LI, Guanlin

"…Decreased and increased precipitation significantly reduced microbial biomass C by 13.5% and 24.9% and microbial biomass N by 22.9% and 17.6% in unwarmed plots, respectively (P < 0.01). …"
احصل على النص الكامل
احصل على النص الكامل

Prospects Of Amino Acids And Ionic Liquids As Natural Gas Hydrate Inhibitors For Offshore Flow Assurance حسب Qureshi, M. Fahed Aziz

"…The inhibitors tend to show better hydrate inhibition effect at low pressures (40 bars) and their inhibition effect decreases as the pressure rises. At the same concentration (10 wt%), the ammonium-based ionic liquid [EA][Of] provided the inhibition effect similar to MEG and at the higher concentration (20 wt%) the amino acid glycine provided better hydrate inhibition effect than the MEG. …"
احصل على النص الكامل

Biological effects of gamma radiation on stored product insects. 4 - radiation effects on sex pheromone production and perception by the rust-red flour beetle. Tribolium castaneum... حسب Abdu, R. M.

"…The production of sex pheromone by virgin females decreased with the increase of radiation doses from 4 to 10 krad., and a dose of 12 krad could almost inhibit pheromone production. …"
احصل على النص الكامل