Articles with "stable carbon" as a keyword



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Stable Carbon Isotopes Reveal Soil‐Stream DIC Linkages in Contrasting Headwater Catchments

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Published in 2018 at "Journal of Geophysical Research"

DOI: 10.1002/2017jg004083

Abstract: Large CO2 evasion to the atmosphere occurs as dissolved inorganic carbon (DIC) is transported from soils to streams. While this physical process has been the focus of multiple studies, less is know ... read more here.

Keywords: dic; carbon; reveal soil; isotopes reveal ... See more keywords
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Air-Stable Carbon-Fe Based Magnetic Nanostructures

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Published in 2019 at "European Journal of Inorganic Chemistry"

DOI: 10.1002/ejic.201801326

Abstract: Herein, we report a simple solid state synthetic route to prepare carbon-Fe based magnetic nanoparticles with different compositions and morphologies through annealing of amorphous Fe nanoparticles under appropriate conditions. Tri-n-octylphosphine (TOP) capped amorphous Fe nanoparticles… read more here.

Keywords: based magnetic; air stable; stable carbon; magnetic nanostructures ... See more keywords
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Reporting atmospheric CO2 pressure corrected results of stable carbon isotope analyses of cereals remains from the archaeological site of Peñalosa (SE Iberian Peninsula): agricultural and social implications

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Published in 2018 at "Archaeological and Anthropological Sciences"

DOI: 10.1007/s12520-018-0650-6

Abstract: The practice of agriculture across the Mediterranean basin has had significant social and economic consequences, including the development of social inequalities. To inform on plant water status and thus on agricultural management techniques and environmental… read more here.

Keywords: carbon; atmospheric co2; carbon isotope; site ... See more keywords
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Variable ethanol concentrations and stable carbon isotopes reveal anthropogenic ethanol contributions to rainwater

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Published in 2020 at "Atmospheric Environment"

DOI: 10.1016/j.atmosenv.2020.117578

Abstract: Abstract The recent rapid increase in ethanol use as a biofuel and emission to the atmosphere may impact air quality and oxidizing capacity in the atmosphere. However, the global models show large uncertainties on sources… read more here.

Keywords: ethanol concentrations; variable ethanol; ethanol; concentrations stable ... See more keywords
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Identification of wintertime carbonaceous fine particulate matter (PM2.5) sources in Kaunas, Lithuania using polycyclic aromatic hydrocarbons and stable carbon isotope analysis

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Published in 2020 at "Atmospheric Environment"

DOI: 10.1016/j.atmosenv.2020.117673

Abstract: Abstract The study aimed at demonstrating the application of PAHs and δ13C indoor and outdoor measurements towards resolving airborne carbonaceous particle sources in wintertime. Concurrent outdoor and indoor measurements of PM2.5 and size-resolved (PM0.056-2.5) particulate… read more here.

Keywords: pm2; carbon; carbon isotope; particulate matter ... See more keywords
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Behavior of Stable Carbon and Stable Nitrogen Isotopes during Hydrothermal Carbonization of biomass

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Published in 2018 at "Journal of Analytical and Applied Pyrolysis"

DOI: 10.1016/j.jaap.2018.02.006

Abstract: Abstract This work studied the changes of stable isotope compositions (C and N) of diverse biomass feedstocks (loblolly pine, cow manure, and sewage biosolids) as a result of hydrothermal carbonization (HTC), and provides insight into… read more here.

Keywords: carbon; isotope; biomass; hydrothermal carbonization ... See more keywords
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Diet and disease in Tomar, Portugal: Comparing stable carbon and nitrogen isotope ratios between skeletons with and without signs of infectious disease

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Published in 2019 at "Journal of Archaeological Science"

DOI: 10.1016/j.jas.2019.03.005

Abstract: Abstract Objectives This study explored the correspondence between stable isotope ratios and indicators of non-specific (periostitis and/or osteomyelitis) and specific (venereal syphilis) disease in a sample of human skeletons from a Portuguese archaeological collection. Additionally,… read more here.

Keywords: without signs; stable carbon; infectious disease; isotope ratios ... See more keywords
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Methanogenesis in the Eocene Tharad lignite deposits of Sanchor Sub-Basin, Gujarat, India: Insights from gas molecular ratio and stable carbon isotopic compositions

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Published in 2021 at "Journal of Natural Gas Science and Engineering"

DOI: 10.1016/j.jngse.2021.103970

Abstract: Abstract The present study investigates the molecular ratio and stable carbon isotopic compositions of gas samples from the Lower to Middle Eocene lignite deposits of the Lower to Middle Tharad Formation in the Sanchor Sub-Basin,… read more here.

Keywords: gas; molecular ratio; stable carbon; carbon ... See more keywords
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Highly stable carbon coated Mg2Si intermetallic nanoparticles for lithium-ion battery anode

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Published in 2018 at "Journal of Power Sources"

DOI: 10.1016/j.jpowsour.2018.02.008

Abstract: Abstract Silicon is an ideal candidate anode material for Li-ion batteries (LIBs). However, it suffers from rapid capacity fading due to large volume expansion upon lithium insertion. Herein, we design and fabricate highly stable carbon… read more here.

Keywords: carbon; highly stable; carbon coated; ion ... See more keywords
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Stable carbon isotope signatures of cellulose in macrophytes collected from three eutrophic lakes in China

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Published in 2020 at "Limnologica"

DOI: 10.1016/j.limno.2020.125758

Abstract: Abstract Aquatic plants are essential for maintaining the diversity and stability of a lake ecosystem. Stable carbon isotopes (δ13C) of macrophytes have been widely used as a powerful tool to study ecological processes and paleoenvironmental… read more here.

Keywords: 13c macrophytes; carbon; carbon isotope; isotope signatures ... See more keywords
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Late Pleistocene and Holocene vegetation changes in the arid Andean piedmont of central Argentina inferred from sediment stable carbon isotopes and C/N ratios

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Published in 2018 at "Palaeogeography, Palaeoclimatology, Palaeoecology"

DOI: 10.1016/j.palaeo.2018.01.013

Abstract: Abstract Stable carbon isotopes (δ13C) and C/N ratios in bulk sediment organic matter were used as indicators of C3 and C4 vegetation functional types in a ca. 40-kyr, predominantly alluvial sequence from Arroyo La Estacada… read more here.

Keywords: holocene; isotope; pleistocene holocene; vegetation ... See more keywords