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721
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722
Effect Of Sand Blasting On Soda Lime Glass Properties
Published 2003“…The average strength remains almost constant while the dispersion becomes much reduced for the glass sand blasted during 60 minutes (m = 10.4 and smoy = 64 MPa). The variation of the relative efficiency of glass protected solar panels versus sand blasting duration (seen up to 300 min) shows a slow regular decrease until 0.91 for a 90° impact angle and until 0.95 for 30°. …”
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723
Reinforcement of polyacrylamide-co-tert-butyl acrylate base gel using nanosilica for conformance control at low and high reservoir temperatures
Published 2020“…The investigation reveals that PatBA:CrAc3 of 9:0.5 is the optimum ratio producing the most strong gel. …”
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724
Evacuated tube heat pipe solar collector for Encontech engine-driven reverse osmosis solar desalination
Published 2020“…Further increment in this ratio up to 3 resulted in a decrease in the efficiency of the ETHPSC.…”
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725
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726
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727
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728
Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles
Published 2021“…The samples were synthesized with different concentrations of hydrous ruthenium chloride of 2 wt%, 5 wt%, and 10 wt%, and then annealed at a temperature of 300 �C for 4 h to form the ruthenium oxide nanoparticles. …”
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729
The Formation of Sulfide Scales on Carbon Steel in Saturated H2S
Published 2020“…The electrochemical reaction commonly contains three stages: first, the reactant transported from the solution (bulk) to the metal surface; then the transfer of the charge reaction on the surface, followed by the reaction product transported away from the iron surface to the bulk solution or the formation and development of the corrosion product which then can decrease the corrosion rate. …”
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730
Development of pH-Controlled Aluminum-Based Polymeric Gel for Conformance Control in Sour Gas Reservoirs
Published 2020“…The results reveal that aluminum acetate, among the screened salts, has a controllable gelation time at pH conditions between 3.5 and 8.5 and is the most stable in the temperature range 25–100 °C. …”
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731
The Formation of Sulfide Scales on Carbon Steel in Saturated H2S
Published 2020“…The electrochemical reaction commonly contains three stages: first, the reactant transported from the solution (bulk) to the metal surface; then the transfer of the charge reaction on the surface, followed by the reaction product transported away from the iron surface to the bulk solution or the formation and development of the corrosion product which then can decrease the corrosion rate. …”
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732
Choroidal metastasis as initial presentation of aggressive medullary thyroid carcinoma with widespread mediastinal, brain, pituitary, bone, lung, and liver metastasis: Case report...
Published 2021“…Presentation of case A 38-year-old Sudanese male presented to Hamad General Hospital, complaining of sudden painless decrease of vision of the right eye of 3 weeks duration. …”
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733
Cultivating microalgae in desert conditions: Evaluation of the effect of light‐temperature summer conditions on the growth and metabolism of nannochloropsis qu130
Published 2021“…The application of temperature cycles under constant light led to a 13.6% increase in biomass productivity, while a 45% decrease was observed under light and temperature regimes due to the combined stress. …”
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734
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735
Utilization of Emergency Services by Children with Asthma in Qatar
Published 2022“…Background: Asthma is a leading chronic disease in children worldwide, which if left untreated or poorly controlled, can lead to altered lung function and poor quality of life. 1 Early detection and improved control of asthma are recommended to decrease utilization of emergency services and hospitalizations. …”
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736
Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
Published 2022“…The slope suggests that removal of C as CaCO3, organic matter (CH2O) or gas exchange (FCO2) is occurring with a ratio of ΔCaCO3/(ΔCH2O or FCO2) = 1:2.86. …”
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737
Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
Published 2022“…The slope suggests that removal of C as CaCO3, organic matter (CH2O) or gas exchange (FCO2) is occurring with a ratio of ΔCaCO3/(ΔCH2O or FCO2) = 1:2.86. …”
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738
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739
Nanoclay compatibilization of phase separated polysulfone/polyimide films for oxygen barrier
Published 2017“…Thermal decomposition (TGA) measurements of PSF/PI films showed a decrease in thermal stability upon adding C30B due to its surfactant modification, while film mechanical tensile modulus properties improved slightly by adding low concentration of C30B (~ 1 mass%), but higher nanoclay loading decreased tensile strength and elongation at break. …”
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740
Improvement of ternary recycled polymer blend reinforced with date palm fibre
Published 2014“…The mechanical, thermal, morphological properties, water absorption and chemical resistance properties were evaluated for these composites and also studied for pure blend matrix (C00). Date palm fibre improved the tensile strength and hardness of recycled polymer blend matrix. …”
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