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181
Investigation of Spatiotemporal Variability of Microplastics in Qatar's Cstal Environment
Published 2016“…Adsorbed PCBs and PAHs concentration showed a steady decrease with time, suggesting that contaminated pellets ending in the marine environment release their adsorbed contaminants in less contaminated seawaters revealing a complex OPs dynamic between plastics an seawater as a function of differential concentrations of pollutants and environmental conditions. …”
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182
Evidence by ac-conductivity for the higher mobility of boron (over aluminium)-associated Brønsted sites in boron-modified HZSM-5
Published 1996“…Therefore, for this particular sample the electric data have been discussed in greater detail. Ruling out the perturbing role of dc-conduction, by analysis at both high frequencies and low temperatures where the dc-conduction is minimum, reveals conductivity increasing in the order: B1ZSM-5<B2ZSM-5<B3ZSM-5<B4ZSM-5 and activation energy decreasing in the order: B1ZSM-5>B2ZSM-5>B3ZSM-5>B4ZSM-5. …”
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183
Sea water salinity detection using circular fringes formation based on diffraction of laser light
Published 2018“…The proposed system has more than 98% accuracy and 99% linearity. ? 2017 IEEE.…”
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184
Time Delay and Cost Overrun in Qatari Public Construction Projects
Published 2016“…On the other hand, cost overruns for drainage projects decreased with increasing contract prices. A significant effort was spent in collecting data on cost overruns and delays in public construction projects. …”
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185
Use and assessment of “e-plastics” as recycled aggregates in cement mortar
Published 2019“…The rest of the examined specimens’ physical properties measured (ρ, Φ, and WA) indicated, also, greater strength but lower ductility than the reference (standard) specimen. …”
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186
Application of Fe3O4 magnetite nanoparticles grafted in silica (SiO2) for oil recovery from oil in water emulsions
Published 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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187
Molecular dynamics of CH4/CO2 on calcite for enhancing gas recovery
Published 2022“…In fact, from pure methane to 20/80 CO2/CH4, methane adsorption increases linearly with pressure. For gas mixtures with a CO2 concentration higher than 40%, higher pressure has less impact on methane adsorption. …”
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188
Novel paclitaxel formulations solubilized by parenteral nutrition nanoemulsions for application against glioma cell lines
Published 2016“…The zeta potential of linoleic had a greater negative value than that of Intralipid.Loading efficiencies for paclitaxel were 70.4–80.2% and 44.2–57.4% for Clinoleic and Intralipid formulations, respectively. …”
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189
Trends of use of SGLT2 inhibitors in Qatar
Published 2021“…Background: Type 2 diabetes mellitus (T2DM) represents a growing health challenge in Qatar and worldwide. …”
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190
Novel techniques for improving NNetEn entropy calculation for short and noisy time series
Published 2023“…The NNetEn entropy calculation errors are less than 10% when SNR is greater than 30 dB, and entropy decreases with an increase in the bias component. …”
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191
Arabic gum as green agent for ZnO nanoparticles synthesis: properties, mechanism and antibacterial activity
Published 2017“…Lower amounts of Arabic gum showed a greater effect on the size and morphology as well as on the properties of ZnO NPs prepared by a sol–gel method. …”
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192
Investigation of the effect of polyelectrolyte structure and type on the electrokinetics and flocculation behavior of bentonite dispersions
Published 2017“…The results showed that PAM structure has a great influence on the dispersion turbidity and zeta potential. …”
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193
Spectrofluorometric investigations on the solvent effects on the photocyclization reaction of diclofenac
Published 2023“…The solvent effects were qualitatively and quantitatively assessed employing various solvatochromic models, including multi-parameter linear regression analysis (MLRA). Interestingly, the MLRA results (R = 0.99) revealed that the photoconversion rate increases with increasing solvent polarizability (π*) and H-bond donor capability (α), whereas the rate decreases with increasing hydrogen-bond acceptor capability (β). …”
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194
Plant growth, metabolism and adaptation in relation to stress conditions. Vii. Respiration, nitrogen and proline contents in french bean and maize plants as influenced by salinity
Published 1989“…Thus, whereas proline as well as amino- and total soluble -N contents increased, contents of protein- and total -N decreased; the magnitude of these changes appeared to be a function of the concentration of Na2S04 used. …”
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195
Long-Term Variability of Aerosol Concentrations and Optical Properties over the Indo-Gangetic Plain in South Asia
Published 2022“…Emissions of atmospheric pollutants are rapidly increasing over South Asia. A greater understanding of seasonal variability in aerosol concentrations over South Asia is a scientific challenge and has consequences due to a lack of monitoring and modelling of air pollutants. …”
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196
Fabrication of Selective Sensors for Hg2+ Traces in Water Using Graphene Decorated with Metal Nanoclusters
Published 2016“…Nanocluster deposition rate was initially measured using a quartz crystal monitor (QCM) facing nanocluster beam and was fixed on a motorized linear translator. …”
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197
Spectrofluorometric investigations on the solvent effects on the photocyclization reaction of diclofenac
Published 2023“…The solvent effects were qualitatively and quantitatively assessed employing various solvatochromic models, including multi-parameter linear regression analysis (MLRA). Interestingly, the MLRA results (R = 0.99) revealed that the photoconversion rate increases with increasing solvent polarizability (π*) and H-bond donor capability (α), whereas the rate decreases with increasing hydrogen-bond acceptor capability (β). …”
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198
Synthesis and Characterization of Polyaniline, Poly(3-fluoroaniline), and Poly(aniline-co-3-fluoroaniline) Derivatives Obtained by Chemical Oxidative Polymerization Methods
Published 2018“…By varying the mol% of 3-fluoroaniline in the monomer feed, a series of new poly(aniline-co-3-fluoroaniline) derivatives with different chemical compositions were prepared by chemical oxidative copolymerization methods using ammonium persulfate as oxidant in the presence of hydrochloric acid as the dopant. …”
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199
Dynamic Salmonella Enteritidis biofilms development under different flow conditions and their removal using nanoencapsulated thymol
Published 2022“…ML nanocapsules decreased significantly bacterial counts during the first 0.5 h, while LBL nanocapsules eliminated the remaining bacterial cells and ensured a protection from bacterial contamination for up to 5 h by releasing THY in a sustained manner over time due to the thicker shell wall structure.…”
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200
Optimal operation of hybrid electrical and thermal energy storage systems under uncertain loading condition
Published 2019“…This paper presents a hybrid model of an energy storage system including thermal and electrical energy storage systems in the building with thermal and electrical loads. …”
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