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241
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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242
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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243
The Rise of Shale oil and Gas and the Renewables and the Prospects for the Future of GCC Energy Sector
Published 2019“…The rise of shale oil and gas, particularly in the United States, and its emergence as the largest producer of oil and an exporter of natural gas and a modest amounts of oil, has transformed the US as the net importer of oil and gas to an exporter in a short span of time. …”
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244
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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245
Pore-scale simulation of fine particles migration in porous media using coupled CFD-DEM
Published 2022“…A faster and larger reduction in permeability was observed when a suspension of polydisperse particles was injected as opposed to a monodisperse suspension. 2022 The Authors…”
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246
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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247
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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248
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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249
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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250
Theoretical insight into effect of cation–anion pairs on CO2 reduction on bismuth electrocatalysts
Published 2020“…The adsorption energy (Eads) and work function (Wf) of the anions increases with decreasing anion size (i.e., Cl− > Br− > I−). On the other hand, the larger the cation size is, the higher is the Eads (i.e., Li+ < K+ < Cs+) but the lower is the Wf (i.e., Cs+ < K+ < Li+). …”
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251
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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252
Location privacy preservation in secure crowdsourcing-based cooperative spectrum sensing
Published 2016“…The existing solutions present a high level of complexity which decreases the performance of the systems. …”
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253
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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254
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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255
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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256
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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257
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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258
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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259
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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260
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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