Results 81 to 90 of about 731,514 (328)

Measuring and Modeling Stable Isotopes of Mobile and Bulk Soil Water

open access: yes, 2018
Bulk soil water isotopes have an evaporation signal, but mobile water isotopes do not. These differences are time variant and linked to the volume and age of the mobile water.
M. Sprenger   +8 more
semanticscholar   +1 more source

Isotopes in Hydrology and Hydrogeology

open access: yesWater, 2019
The structure, status, and processes of the groundwater system, which can only be acquired through scientific research efforts, are critical aspects of water resource management. Isotope hydrology and hydrogeology is a genuinely interdisciplinary science.
M. Barbieri
semanticscholar   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Radiation-Induced Degradation of Pirimiphos Methyl in Aerated Solution

open access: yesAtom Indonesia, 2004
Degradation of pirimiphos methyl (1) as an active ingredient in Minawet insecticide 250 EC formulation in aqueous solution was studied. The absorbance, pH, COD (Chemical Oxygen Demand) in aerated solution, and the analyses of degradation products at ...
Hendig Winarno   +4 more
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

The Contribution of Azolla and Urea in Lowland Rice Growth Production for Three Consecutive Seasons

open access: yesAtom Indonesia, 2008
Three field experiments have been carried out in three consecutive seasons namely wet season (120 days), dry season (120 days), wet season (120 days) at Pusakanegara.
EL. Sisworo   +3 more
doaj   +1 more source

Isotoping 2-spheres in 4-manifolds [PDF]

open access: yesarXiv, 2014
Here we discuss an example of topologically isotopic but smoothly non-isotopic pair of 2-spheres in a simply connected 4-manifold, which become smoothly isotopic after stabilizing by connected summing with S^2 x S^2.
arxiv  

Tailoring the Microstructure of B‐Cation Octahedra in Halide Double Perovskites for Efficient Selective CO2‐to‐CO Photoreduction

open access: yesAdvanced Functional Materials, EarlyView.
The thermodynamic obstacle of CO2‐to‐CO conversion over metal halide perovskite photocatalysts is addressed by modulating the local electronic structure. A 13‐fold improvement in selective CO2 photoreduction to CO is achieved, with ≈100% selectivity.
Chunhua Wang   +9 more
wiley   +1 more source

Regulation of perovskite oxides composition for the efficient electrocatalytic reactions

open access: yesSmart Molecules, 2023
The benefits of perovskite oxides include their low cost, customizable composition, ordered atomic structure, and extremely flexible electronic structure.
Jianyi Li   +7 more
doaj   +1 more source

Compiled records of carbon isotopes in atmospheric CO2 for historical simulations in CMIP6

open access: yes, 2017
. The isotopic composition of carbon (Δ14C and δ13C) in atmospheric CO2 and in oceanic and terrestrial carbon reservoirs is influenced by anthropogenic emissions and by natural carbon exchanges, which can respond to and drive changes in climate ...
H. Graven   +11 more
semanticscholar   +1 more source

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