Results 21 to 30 of about 692,964 (317)

Carbon storage and DNA absorption in allophanic soils and paleosols [PDF]

open access: yes, 2014
Andisols and andic paleosols dominated by the nanocrystalline mineral allophane sequester large amounts of carbon (C), attributable mainly to its chemical bonding with charged hydroxyl groups on the surface of allophane together with its physical ...
Louis A. Schipper   +11 more
core   +1 more source

Investigation of the Possibilities for Removal of Phenolic Toxic Compounds from Water by Nanoporous Carbon from Polymer By-Products

open access: yesApplied Sciences, 2022
Nanoporous carbon is synthesized on the base of phenol-formaldehyde resin and polyolefin wax, a by-product from industrial production of polyethylene at low pressure.
Ivanka Stoycheva   +9 more
doaj   +1 more source

Organic matter degradation causes enrichment of organic pollutants in hadal sediments

open access: yesNature Communications, 2023
Burial of persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs) in deep-sea sediments contributes to 60% of their historical emissions. Yet, empirical data on their occurrence in the deep-ocean is scarce.
Anna Sobek   +8 more
doaj   +1 more source

Topsoil Organic Carbon Content [PDF]

open access: yes, 2016
Soil organic carbon (SOC) is a key soil component. SOC stores large amounts of carbon and it also affects water fluxes as well as the availability of nutrients. Soil water fluxes are impacted by SOC directly due to its effect upon soil hydraulic parameters.
Klar, Christian W.   +2 more
openaire   +1 more source

Stable carbon and radiocarbon isotope compositions of particle size fractions to determine origins of sedimentary organic matter in an estuary [PDF]

open access: yes, 2002
Stable and radioactive carbon isotopic compositions of particle size fractions of a surface sediment from the Ems-Dollard estuary vary considerably with particle size. The organic material in the fine fractions (
Megens, L.,   +7 more
core   +1 more source

Towards Advances in Molecular Understanding of Boric Acid Biocatalyzed Ring-Opening (Co)Polymerization of δ-Valerolactone in the Presence of Ethylene Glycol as an Initiator

open access: yesMolecules, 2021
Following our previous studies on the molecular level structure of (co)oligoesters obtained via anionic homo- and co-polymerization of novel β-substituted β-lactones, prepared by the atmospheric pressure carbonylation reaction of respective epoxides, the
Khadar Duale   +6 more
doaj   +1 more source

Revealing the effect of electrocatalytic performance boost during hydrogen evolution reaction on free-standing SWCNT film electrode

open access: yesScientific Reports, 2021
Large-scale sustainable hydrogen production by water electrolysis requires a highly active yet low-cost hydrogen evolution reaction (HER) electrocatalyst.
Karolina Kordek-Khalil   +2 more
doaj   +1 more source

In Vitro Bioaccessibility and Health Risk of Heavy Metals from PM2.5/PM10 in Arid Areas—Hotan City, China

open access: yesAtmosphere, 2023
The impact of heavy metals in particulates plays an assignable role in human health—especially in the northwest region of China, which is affected by severe dust storms—and the bioaccessibility and health risks of heavy metals in particulate matter have ...
Bowen Liu   +8 more
doaj   +1 more source

The significance of organic carbon and nutrient export from peatland-dominated landscapes subject to disturbance, a stoichiometric perspective [PDF]

open access: yes, 2009
The terrestrial-aquatic interface is a crucial environment in which to consider the fate of exported terrestrial carbon in the aquatic system. Here the fate of dissolved organic carbon (DOC) may be controlled by nutrient availability.
C. Arlaud   +9 more
core   +1 more source

Carbon and Organism

open access: yesTANSO, 1998
This paper first mentions that the relation between carbon and organism is the interesting object still remainedto be solved, and then introduces summary of the results obtained by our project which started at the last year underthe support of NEDO.The aim of our project is to develop the technology to treat an aquatic environment such as wastewater ...
openaire   +2 more sources

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