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Sustainable Production of Nannochloris atomus Biomass Towards Biodiesel Production
Published 2020“…Similarly, the lipid content was strongly influenced by the elevation of temperature; indeed, it increased up to ~3 folds when the temperature increased from 20 to 40 °C. …”
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Moderate Temperature Treatment of Gas-Phase Volatile Organic Toluene Using NiO and NiO–TiO2 Nano-catalysts: Characterization and Kinetic Behaviors
Published 2022“…<h2>Abstract</h2> <p>For the first time, the potential of Ni/NiO and NiO–TiO2 nano-catalysts for the oxidation of toluene under moderate temperatures was investigated. The nano-catalysts were prepared using the solution combustion synthesis method (SCSM) and the effect of the composition of nano-catalysts, the inlet toluene concentration $$([\text{C}_{7} {\text{H}}_{8}]_{in})$$ ( [ C 7 H 8 ] in ) , the relative humidity (RH), and the temperature on the percentage of toluene conversion ($$\% {\text{TN}}_{Conv.} )$$ % TN C o n v . ) were subsequently examined. …”
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63
The rising danger of heat waves
Published 2015“…According to the model, heat waves are most likely to occur in Qatar’s northern coastal region, largely because of increased humidity and temperature as a result of air pollution from expansion of the oil and gas industries. …”
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64
Urban planning impact on summer human thermal comfort in Doha, Qatar
Published 2024“…Our comparison of LST between different urban areas indicates lower temperatures near water bodies and suburban developments and higher temperatures in downtown areas. …”
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65
Kinetics and thermodynamics of acoustic release of doxorubicin from non-stabilized polymeric micelles
Published 2010“…Our model showed that the residual activation energy for destruction decreased with increasing acoustic intensity. In addition, higher temperatures were found to encourage micelle destruction and hinder micelle re-assembly.…”
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66
Towards Industry 4.0 and Sustainable Manufacturing Applying Environmentally Friendly Machining of a Precipitation Hardened Stainless Steel Using Hot Turning Process
Published 2023“…Moreover, it has been shown that by increasing preheating temperature in hot turning, the hardness of the carbides in the workpiece decreases more than the hardness of the tool substrate and reduces coating materials, consequently reducing cutting tool abrasion wear phenomenon.…”
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Functional fatigue of Ni50.3Ti25Hf24.7 - Heterogeneities and evolution of local transformation strains
Published 2017“…No homogenization of the transformation strain field was observed as a result of either stress increase or thermal cycling. The transformation strains were localized and the global evolution in their magnitudes was associated with local changes, either increasing or decreasing local strains, in spatially the same regions. …”
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Techno-economics of algae production in the Arabian Peninsula
Published 2021“…Potential cost reductions of up to 42.5% and 25% could be accomplished with improvements in photosynthetic efficiencies and increased culture temperatures, respectively. As of such, efforts to source local thermo- and photo- tolerant strains could be the key to unlock the potential of the region for algae commercialization, linking into food, feed and nutraceutical industries.…”
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A comparative study of gender differences in thermal comfort and environmental satisfaction in air-conditioned offices in Qatar, India, and Japan
Published 2021“…In Doha, females, younger subjects, and high-BMI subjects had lower comfort temperatures than their counterparts.</p><p dir="ltr">Increased indoor air speeds and the provision of personal environmental controls could effectively reduce female dissatisfaction and save energy in Qatar. …”
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Quantifying CO<sub>2</sub> Emissions and Energy Production from Power Plants to Run HVAC Systems in ASHRAE-Based Buildings
Published 2022“…To this end, this study quantified the effects of increasing the cooling setpoint temperature on reducing energy consumption and CO<sub>2</sub> emissions to mitigate overcooling. …”
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Design and Utilization of a Direct Methanol Fuel Cell
Published 2022“…The results indicated that increasing the fuel cell’s operating temperature yields enhanced output cell voltages due to enhanced methanol oxidation reactions. …”
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Design and Utilization of a Direct Methanol Fuel Cell
Published 2022“…The results indicated that increasing the fuel cell’s operating temperature yields enhanced output cell voltages due to enhanced methanol oxidation reactions. …”
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Modelling the cryogenic environment aided by CFD & FEM to provide optimized solutions for unconventional manufacturing of aerospace alloys
Published 2020“…The modern manufacturing industry needs to meet the growing demands of aerospace production, while adhering to increasingly strict environmental and sustainability constraints. …”
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Numerical investigation of the potential of using hydrogen as an alternative fuel in an industrial burner
Published 2024“…Results revealed non-linear temperature trends, with a 50% hydrogen blend yielding the lowest peak temperature (1880 K) and a 75% hydrogen blend achieving optimal performance, balancing peak temperatures (∼1900 K), reduced NO<sub>x</sub> emissions (5.39 × 10<sup>-6</sup>), and near-zero CO<sub>2</sub> emissions (0.137), though flame stability was impacted by rich mixtures. …”
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Daytime Variation of Urban Heat Islands: The Case Study of Doha, Qatar
Published 2016“…<p>Recent evidence suggests that urban forms and materials can help to mediate temporal variation of microclimates and that landscape modifications can potentially reduce temperatures and increase accessibility to outdoor environments. …”
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Polymer chain dynamics in epoxy based composites as investigated by broadband dielectric spectroscopy
Published 2016“…A sub-Tgγ relaxation peak for both networks shifts to higher frequencies (f) with increasing temperature in Arrhenius fashion, both processes having the same activation energy and being assigned to phenyl ring flipping in DGEBA chains. …”
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Crystallization properties of arsenic doped GST alloys
Published 2019“…Results from the resistance versus temperature study show a systematic increase in the transition temperature and resistivity in the amorphous and crystalline states when the arsenic percentage in the GST alloy increases. …”
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Insights from bond-slip investigations in different reinforced concrete mixtures for LNG containment
Published 2021“…Pull-out testing involving applied stresses ranging from 34.5 to 241.5 MPa was conducted at normal and cryogenic temperatures. Bond stress was similar in both aggregate types but increased with rebar diameter within the applied stress range. …”
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Numerical simulation of large deformations of amorphous polymer with finite element method: Application to normal impact test
Published 2015“…<p dir="ltr">During the last decades, the part of polymeric materials considerably increased in automotive and packaging applications. …”