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5021
Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements
Published 2025-01-01“…Copper matrix composites (CMCs) synergistically reinforced with rare earth oxides (Re<sub>2</sub>O<sub>3</sub>) and TiC were prepared using a powder metallurgy process with vacuum hot-pressing and sintering technology, aiming to explore new ways to optimize the properties of composites. …”
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5022
Effect of Acetone-n-Butanol-Ethanol (ABE) as an Oxygenate on Combustion, Performance, and Emission Characteristics of a Spark Ignition Engine
Published 2020-01-01“…In comparison with G100 under various engine loads and equivalence ratios, for the most part, ABE30 exhibits 1.4% higher brake thermal efficiency, 14% lower carbon monoxide, 9.7% lower unburned hydrocarbons, and 23.4% lower nitrogen oxides. It is indicated that ABE could be served as the oxygenate in spark ignition engine due to its capability to improve energy efficiency and reduce pollutant emissions.…”
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5023
The Influence of Dosing Modes of Coagulate on Arsenic Removal
Published 2014-01-01“…Besides, the main arsenic speciation governing the arsenic-borne coagulates was the As (V) associated with poorly crystalline hydrous oxides of Fe in sequential or single dosing mode. …”
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5024
Biosynthesis of Multicomponent Nanoparticles with Extract of Mortiño (Vaccinium floribundum Kunth) Berry: Application on Heavy Metals Removal from Water and Immobilization in Soils...
Published 2018-01-01“…As-prepared nanoparticles were spherical measuring approximately 12 nm in diameter and contained iron oxides and iron sulfides in the crystal structure. …”
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5025
MINERALOGICAL AND GEOCHEMICAL FEATURES OF HEAVY CONCENTRATES FROM CREEKS OF THE NORTHWESTERN END OF THE OKHOTSK TERRANE (KHABAROVSK KRAI)
Published 2023-12-01“…Native gold grains in placers are yellow, small, mostly weak and medium-rounded, often with inclusions of quartz, feldspar, pyrite, iron oxides and hydroxides, and zircon. The native gold grains have low fineness and contain only Ag. …”
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5026
Associations between Ozone and Emphysema: A Systematic Review and Meta-analysis
Published 2022-05-01“….: particulate matter, nitrogen oxides and ozone), and the results were visualized in forest plots. …”
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5027
Investigation of silica crystallization kinetics in rice husk ash for sustainable construction materials
Published 2025-01-01“…However, impurities such as alkali metal oxides and uncontrolled combustion reduce the quality of silica and promote its crystallization. …”
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5028
Prediction of Europium Retention in Perovskite: Potential Candidates for an Engineering Barrier in the Disposal of Radioactive Waste
Published 2021-01-01“…Perovskites, such as tausonite, are crystalline metal oxides with excellent optical and photocatalytic properties and have also been used successfully in the retention of metals, simulating the isotopes of uranium and plutonium. …”
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5029
Experimental Studies of Hydrogen Sulfide Adsorbents Based on Sludge from a TPP Water Treatment Plant
Published 2025-02-01“…The most important results are the determination of the balance between an effective combination of components in a composition that provides a high sulfur content; the definition of a list of metal oxides that can increase the absorption capacity of sulfur compounds; the development of an adsorbent with a high sulfur content and acceptable physical characteristics. …”
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5030
Processes Governing Alkaline Groundwater Chemistry within a Fractured Rock (Ophiolitic Mélange) Aquifer Underlying a Seasonally Inhabited Headwater Area in the Aladağlar Range (Ada...
Published 2017-01-01“…Results from the PHREEQC modeling suggested that hydrogeochemical evolution is governed by weathering of primary minerals (calcite, chrysotile, forsterite, and chromite), precipitation of secondary minerals (dolomite, quartz, clinochlore, and Fe/Cr oxides), atmospheric/anthropogenic inputs (halite), and seasonal dilution from recharge.…”
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5031
Forecasting of Primary Air Pollutions: Emission Inventory Sample from Turkey
Published 2020-01-01“…In this study, emissions of four primary pollutants, namely, particulate matter (PM), sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon monoxide (CO) were estimate. …”
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5032
Assessment of Energy Potential and Benefit under the Ground Source Heat Pump Air Conditioning System in Anqing Area of Eastern China
Published 2021-01-01“…And the annual emission of carbon dioxide, sulfur dioxide, nitrogen oxides, suspended dust, and other air pollutants to the atmosphere can be reduced by 1442.5 t, and the solid waste ash and slag can be reduced by 59.7 t. …”
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5033
Comprehensive study on impact of hydrogen peroxide decomposition on the crucial parameters of OSM-type energetic materials
Published 2024-06-01“…It was also found that the concentration of NO $$_{\hbox {x}}$$ x is low and decreases dramatically with the decomposition of hydrogen peroxide, but at the same time the concentration of carbon oxides increases.…”
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5034
Reduction in Carbon Dioxide Emission and Energy Saving Obtained by Renovation of Building Envelope of Existing Residential Buildings
Published 2021-06-01“…Finally, we identified the optimal combination for conserving energy and decreasing CO2 emissions as 120-mm-thick expanded polystyrene insulating board for both the exterior wall and the roof, and 5-mm-thick triple-silver low-emissivity glass and 5-mm-thick normal glass separated by 12 mm of air for the exterior windows, which resulted in a cooling capacity, heating consumption, total building energy consumption, static payback period, and dynamic payback period of 28.37 kWh m−2 a−1, 4.22 kWh m−2 a−1, 32.59 kWh m−2 a−1, 13.76 years, and 22.84 years, respectively, as well as an annual reduction in CO2, sulfur dioxide (SO2), and nitrogen oxides (NOx) emissions of 86.01 tons, 2.59 tons, and 1.29 tons, respectively.…”
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5035
Analyzing the Mechanical, Durability, and Microstructural Impact of Partial Cement Replacement with Pumice Powder and Bamboo Leaf Ash in Concrete
Published 2024-01-01“…The combined amount of major oxides SiO2, Al2O3, and Fe2O3 in PP is 84.59%, while in BLA, it is 74.4%, classifying PP and BLA as class N and F pozzolans. …”
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5036
Recent advances in electrochemical recovery of rare earth elements from NdFeB magnets
Published 2024-01-01“…To isolate highpurity REE oxides and metals, additional processing is required using techniques such as solvent extraction, selective precipitation, and electroseparation. …”
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5037
Freestanding VO2 membranes on epidermal nanomesh for ultra-sensitive correlated breathable sensors
Published 2025-02-01“…Thus, the freestanding membranes of correlated oxides on epidermal nanomeshes are multifunctional platforms for developing ultra-sensitive correlated breathable sensors. …”
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5038
Characterization of Essential Oils and Fatty Acids Composition of Stored <i>Ginger</i> (<i>Zingiber officinale</i> Roscoe)
Published 2020-01-01“…Monoterpenols constituted 3.35% while ketones and oxides were seen in trace amounts. The specific dominant constituents were zingiberene (28.57%), Arcurcumene (14.22%) and Geranyl Acetate (13.28%). …”
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5039
Effect of the Fe Nanoparticles Generated by Pulsed Plasma in Liquid in the Catalyzed Ozone Removal of Phenolphthalein
Published 2017-01-01“…Such nanoparticles have a mean size of 12 nm and are composed of ~80% Fe0, while the rest are a mixture of Fe+2 and Fe+3 oxides. The degradation of phenolphthalein was carried on a glass reactor injecting a constant amount of ozone and introducing different concentrations of Fe nanoparticles to the system. …”
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5040
Determinantes del uso de los servicios de salud materna en el Litoral Pacífico Colombiano
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