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9962
Refined Source Apportionment of Atmospheric PM2.5 in a Typical City in Northwest China
Published 2020-09-01“…The average annual PM2.5 mass was 67 µg m−3; loadings were high in winter and low in summer. Organic carbon (18.2%), nitrate (17.0%), and sulfate (13.1%) were the main chemical components of PM2.5. …”
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9963
Study on the Effect of Polysulfide Content on the Micromorphology and Spontaneous Combustion Characteristics of Coal
Published 2021-01-01“…Under the same temperature condition of coal, carbon monoxide (CO) production basically occurred first as the sulfur content increased. …”
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9964
Transformative Service Research and the role of service robots: a bibliometric analysis
Published 2025-01-01“…The analysis of several use cases of service robots in elderly care is carried out in the article to highlight the importance of using this service in cases of great importance, such as in cases of dementia. …”
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9965
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9966
Geogenic perspectives on potassium dynamics and plant uptake: insights from natural and submerged conditions across different soil types with machine learning predictions
Published 2025-01-01“…Black soil (S8) had the highest cation exchange capacity (CEC: 31.25 cmol (p+)/kg) and clay content (41.2%), while alluvial soil had the most organic carbon (S5: 1.74%). Submerged conditions enhanced potassium availability, with red soil showing the highest levels of water-soluble K (WsK), exchangeable K (ExK), and non-exchangeable K (NEK), particularly Step-K and constant rate K (CR-K) forms. …”
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9967
Optimization Conditions of Extracellular Proteases Production from a Newly Isolated Streptomyces Pseudogrisiolus NRC-15
Published 2012-01-01“…The culture conditions for higher protease production by NRC-15 were optimized with respect to carbon and nitrogen sources, metal ions, pH and temperature. …”
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9968
Catalytic Ozonation of Phenolic Wastewater: Identification and Toxicity of Intermediates
Published 2014-01-01“…A new strategy in catalytic ozonation removal method for degradation and detoxification of phenol from industrial wastewater was investigated. Magnetic carbon nanocomposite, as a novel catalyst, was synthesized and then used in the catalytic ozonation process (COP) and the effects of operational conditions such as initial pH, reaction time, and initial concentration of phenol on the degradation efficiency and the toxicity assay have been investigated. …”
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9969
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9970
Effect of Multiple Injection Strategy Under High Ammonia Ratio on Combustion and Emissions of Liquid Ammonia/Diesel Dual DI Engine
Published 2025-01-01“…Ammonia diesel dual fuel (ADDF) engine is one of the effective ways to reduce carbon emissions. This study investigated the effect of multiple injection strategy on the combustion and emission characteristics of liquid ammonia/diesel dual direct injection (DI) engines through numerical simulation. …”
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9971
Influence of Solvents on the Electroactivity of PtAl/rGO Catalyst Inks and Anode in Direct Ethanol Fuel Cell
Published 2021-01-01“…The inks prepared by mixing PtAl/rGO catalyst, Nafion solution (5 wt%), and solvent were coated on carbon cloth by the spin coating method. The results obtained showed that ethanol was the most suitable solvent for the preparation of catalyst ink with a volume ratio between catalyst slurry and solvent of 1 : 1 (CI-EtOH (1/1) ink). …”
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9972
La evaluación en la educación a distancia en la búsqueda de un aprendizaje desarrollador
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9973
Removal of Polyvinyl Alcohol Using Photoelectrochemical Oxidation Processes Based on Hydrogen Peroxide Electrogeneration
Published 2013-01-01“…This study investigates the removal efficiency of PVA from aqueous solutions using UV irradiation in combination with the production of electrogenerated hydrogen peroxide (H2O2) at a polyacrylonitrile-based activated carbon fiber (ACF) cathode. Three cathode materials (i.e., platinum, graphite, and ACF) were fed with oxygen and used for the electrogeneration of H2O2. …”
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9974
Concentration of viruses and electron microscopy
Published 2020-05-01“…The paper reviews studies on unique traps, magnetic beads, and composite polyaniline and carbon nanotubes, including those of changeable size to concentrate viral particles. …”
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9975
O znanych i mniej znanych relacjach Leonharda Eulera z Polską
Published 2016-11-01“…Korespondencja Eulera z gdańskimi naukowcami i urzędnikami, w tym Carlem L. Ehlerem, Heinrichem Kühnem i Natanaelem M. von Wolfem zaczęła się już w połowie lat 30. …”
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9976
Deal or no deal: U.S. homeowners’ willingness to pay for residential building retrofits
Published 2025-01-01“…With buildings accounting for nearly 40% of global carbon emissions, deep energy retrofits to reduce emissions in the majority of existing buildings are necessary to meet global climate goals. …”
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9977
Supercritical Fluid Extraction of Quinones from Compost for Microbial Community Analysis
Published 2015-01-01“…The 0.3 g of dried compost was extracted using 3 mL min−1 of carbon dioxide (90%) and methanol (10%) at 45°C and 25 MPa for a 30 min extraction time. …”
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9978
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. …”
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9979
Genesis of the Bairendaba Ag-Zn-Pb Deposit, Southern Great Xing’an Range, NE China: A Fluid Inclusion and Stable Isotope Study
Published 2017-01-01“…Values of –15.9‰ to –12‰ (δ13CPDB) for hydrothermal quartz indicate that organic-rich strata were the source of carbon. Sulfur had a magmatic source, based on values of –0.1‰ to 1.5‰ (δ34SV-CDT) for sulfide minerals. …”
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9980
Macroscopic perspective on phase transition behavior of natural single-crystal graphite under different pressure environments
Published 2025-01-01“…Our results provide a fresh perspective for studying the phase transition behavior of graphite and greatly deepen our understanding of this behavior, which will be helpful in guiding further high-temperature and high-pressure syntheses of carbon allotropes.…”
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