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Improving Concrete Durability by Using Optimized Aggregate Gradation and Reducing Cement Content
Published 2020“…The main findings from this study are as follows: (1) The cementitious content of typical Florida pavement and structural concrete can be reduced by as much as 10 to 15% without loss in workability of the fresh concrete, and without decreasing the strength and durability of the hardened concrete. (2) Portlandlimestone cement (Type IL) can be used as a substitute for ordinary Portland cement (Type I/II). (3) The OAG technique can be used to efficiently reduce the cementitious content of the concrete mixes and to improve their performance."…”
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Microbially induced calcite precipitation in calcareous soils by endogenous Bacillus cereus, at high pH and harsh weather
Published 2020“…First, the physical characteristics of soils in Qatar showed similar grain size distributions with most falling in the category of fine particles (30 μm–1 μm), which is appropriate for MICP processes. …”
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Effect of coronavirus-19 restrictions in male handball players: Physical activity, sedentary behavior, and satisfaction with life
Published 2021“…This experiment examined physical activity (PA), sitting time, and satisfaction with life (SL) in European (45%) and Middle Eastern and North African (MENA; 55%) handball players (n = 418; age: 25.6 ± 6.8 years; body mass: 88.1 ± 11.7 kg; height: 1.83 ± 0.08 m) during the coronavirus (COVID)-19 pandemic. …”
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The Role of Key Impurity Elements on the Performance of Aluminium Electrolysis -Current Efficiency and Metal Quality
Published 2016“…The mass transfer coefficient for silicon was determined to be 3.1 x 10-5 m/s. Mass balance for phosphorus was carried out. …”
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Method to prepare ternary methanol electro-oxidation catalysts for direct methanol fuel cell applications
Published 2017“…The prepared Fe2O3-MC, CoO-MC and NiO-MC showed large pore volume of 0.72–1.46 cm3/g and high surface area of 686–1589 m2/g, which enabled high dispersion of the Pt-Ru nanoparticles. …”
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Reactive Absorption of CO2 Using Ethylaminoethanol Promoted Aqueous Potassium Carbonate Solvent
Published 2016“…In contrast, the D_(CO2) increased with the rise in the reaction temperature from 303 to 318 K by a factor of 1.678. The rate of absorption of CO2 in the APCE solvent was observed to increase by 35.10% and 47.59% due to the increase in EAE concentration (0.6 to 2 kmol/m3) and reaction temperature (303 to 318 K). …”
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Changes in air quality during the first-level response to the COVID-19 pandemic in Shanghai Municipality, China
Published 2020“…The results showed that air quality improved significantly During-FLR compared with Pre-FLR, with the concentrations of PM2.5, PM10, SO2, NO2, and CO all decreasing significantly. …”
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Combined influence of temperature and flow rate of feeds on the performance of forward osmosis
Published 2016“…The experimental results also showed that the membrane flux increased by 93.3% due to temperature increase from 20 to 26 °C and the flow rate from 1.2 to 3.2 L/min using a 0.5 M NaCl solution as the draw solution and distilled water as the feed solution (FS).…”
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Detailed organic characterization of process water to evaluate reverse osmosis membrane fouling in industrial wastewater treatment
Published 2024“…Bench-scale RO results showed that in the absence of ACF pretreatment, a 12 % decline in membrane permeability (from 1.78 to 1.57 L/(m2-bar-h)) was observed, while no permeability decline was measured after ACF treatment. …”
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