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Corrosion Evaluation of 316L Stainless Steel Exposed to CNT-Water Nanofluid
منشور في 2019"…Three consequent corrosion tests were conducted on 316L stainless steel (SS) exposed to carbon nanotubes (CNTs) water-based nanofluids: open circuit test, polarization resistance test, and potentiodynamic scans. …"
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Evaluation of the cementite morphology influence on the hydrogen induced crack nucleation and propagation path in carbon steels
منشور في 2022"…<p>The effect of cementite morphology on the crack initiation and growth path was studied using in situ electrochem-ical micro-cantilever bending (ECCB) technique under hydrogen (H) charging. Two carbon steels with lamellar cementite morphology (pearlitic microstructure) and spherical or broken lamellas cementite morphology (spheroidite microstructure), both with approximately the same carbon equivalent, were used in this study. …"
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Deep learning-based modeling of land use/land cover changes impact on land surface temperature in Greater Amman Municipality, Jordan (1980–2030)
منشور في 2024"…This study aimed to model past, present, and future LULCC on Land Surface Temperatures in the Greater Amman Municipality (GAM) in Jordan between 1980 and 2030. …"
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Enhancing the corrosion resistance of reinforcing steel under aggressive operational conditions using behentrimonium chloride
منشور في 2019"…In conclusion, this new inhibitor shows high corrosion inhibition efficiencies under different aggressive conditions and can be used in concrete to reduce the corrosion rate of reinforcing steel without decreasing the mechanical properties of the concrete.…"
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Electrochemical and thermodynamic study on the corrosion performance of API X120 steel in 3.5% NaCl solution
منشور في 2020"…The overall results revealed that PEI significantly decreases the corrosion rate of API X120 steel with inhibition efficiency of 94% at a concentration of 100 μmol L<sup>−1</sup>. …"
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Assessment of tropospheric NO<sub>2</sub> concentrations over greater Doha using Sentinel-5 TROPOspheric monitoring instrument (TROPOMI) satellite data: Temporal analysis, 2018–202...
منشور في 2024"…<p dir="ltr">This study presents a temporal evaluation of the tropospheric NO<sub>2</sub> column densities over Greater Doha using TROPOMI satellite data from May 2018 to December 2023, and an assessment of the impact of the preparations and hosting of the FIFA Football World Cup Qatar 2022, on NO<sub>2</sub> levels before, during and after the tournament over Greater Doha. …"
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Part II.: Dissimilar friction stir welding of nickel titanium shape memory alloy to stainless steel – microstructure, mechanical and corrosion behavior
منشور في 2021"…<p dir="ltr">In the present work, nickel-titanium (NiTi) shape memory alloys (SMAs) is joined to 304 stainless steel (SS) using friction stir welding (FSW) using process parameters of 400 rpm and a constant tool translation speed of 75 mm/min. …"
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Biodegradable polysaccharide grafted polyacrylamide inhibitor for corrosion in CO<sub>2</sub>- saturated saline solution
منشور في 2023"…Implementing AGGPAM coating reduced the steel corrosion rate to 9.6 mils per year, achieving 71% efficiency. …"
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Towards Industry 4.0 and Sustainable Manufacturing Applying Environmentally Friendly Machining of a Precipitation Hardened Stainless Steel Using Hot Turning Process
منشور في 2023"…In this research, the conventional and hot turning of AISI630 hardened stainless steel have been investigated using PVD-(Ti,Al)N/(Al,Cr)<sub>2</sub>O<sub>3</sub> coated carbide cutting tools at various feed rates and cutting speeds. …"
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Theoretical and experimental insights into the C-steel aqueous corrosion inhibition at elevated temperatures in 1.0 M HCl via multi-carbonyl Gemini cationic surfactants
منشور في 2023"…We aimed to evaluate these surfactants as potential corrosion inhibitors for carbon steel (CS) in 1 M HCl at temperatures of 25–55 ± 0.1 °C. …"
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Novel Wire Gripper for Robotics Picking of Small Green Parts From Powder Bed of Binder Jet Metal Additive Manufacturing
منشور في 2025"…A combination of 304 stainless steel wires integrated with a PLA body allows the device to achieve precise handling and control together with versatile operation. …"
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Rebound effects undermine carbon footprint reduction potential of autonomous electric vehicles
منشور في 2023"…<p dir="ltr">Autonomous vehicles offer greater passenger convenience and improved fuel efficiency. …"
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Renewable Energy Consumption and Carbon Emissions: Evidence from an Oil-Rich Economy
منشور في 2022"…The results reveal that renewable energy consumption has a negative impact on CO<sub>2</sub> emissions, while real GDP per capita has a positive effect. According to the findings, a 1% increase in renewable energy consumption leads to a 0.26% decrease in consumption-based CO<sub>2</sub> emissions, while a 1% rise in real GDP per capita leads to a 0.46% rise in consumption-based CO<sub>2</sub> emissions. …"
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Operation optimization of propane pre-cooled mixed refrigerant LNG Process: A novel integration of knowledge-based and constrained Bayesian optimization approaches
منشور في 2024"…At large-scale LNG production (10,000 tons per day), the reduction in the SEC is translated into an 18 MW decrease in compression power, saving approximately 4.7 million $ per year for each C3MR train. …"
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Evapotranspiration and water availability response to climate change in the Middle East and North Africa
منشور في 2021"…Outcomes reveal that the MENA region is indeed vulnerable to a surge in temperature, which can increase evapotranspiration losses and decrease water availability. Under the shared socioeconomic pathway (SSP2-4.5), the potential evapotranspiration (PET) has been projected to increase throughout the MENA region by up to 0.37 mm per year during the middle of the twenty-first century (2021–2050) and by up to 0.51 mm per year during the end of the twenty-first century (2071–2100). …"
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Hydrogen energy systems: Technologies, trends, and future prospects
منشور في 2024"…Presently, electrolysis efficiencies range between 60 % and 80 %, with hydrogen production costs around $5 per kilogram. Strategic advancements are necessary to reduce these costs below $2 per kilogram and push efficiencies above 80 %. …"
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The Gulf Cooperation Council states: Crystallization of the regional cooperation and alliances amid dwindling resources
منشور في 2021"…<p dir="ltr">The Gulf Cooperation Council (GCC) states can be divided into two main camps in terms of hydrocarbon endowment per capita which can partially account for differences in policy directions. …"
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Water Footprint Assessment and Virtual Water Trade in the Globally Most Water-Stressed Country, Qatar
منشور في 2023"…The virtual water exports gradually decreased over the years with the most notable decrease in 2018 following Qatar’s blockade. …"