Results 11 to 20 of about 734,199 (300)

Carbon pricing of international transport fuels: Impacts on carbon emissions and trade activity [PDF]

open access: yesJournal of Environmental Economics and Management, 2021
Abstract We study the impacts of carbon taxation of international transport fuels on CO2 emissions and trade activity, focusing on maritime transport, which constitutes the most important international trade transport activity. Our estimated bunker price elasticities range from −0.03 to −0.42.
Gabriela Mundaca   +2 more
openaire   +1 more source

The transport properties of activated carbon fibers [PDF]

open access: yesJournal of Materials Research, 1991
The transport properties of isotropic pitch-based carbon fibers with surface area 1000 m2/g have been investigated. We report preliminary results on the electrical conductivity, the magnetoresistance, the thermal conductivity, and the thermopower of these fibers as a function of temperature.
S.L. di Vittorio   +5 more
openaire   +1 more source

Evidence for late winter biogeochemical connectivity in permafrost soils

open access: yesCommunications Earth & Environment, 2023
Longer periods of biogeochemical connectivity in soil porewaters with a deeper active layer suggest early organic carbon transport during the dormant season, according to silicon isotope compositions of permafrost soil porewaters in Alaska.
Catherine Hirst   +7 more
doaj   +1 more source

Characterization of pyruvate uptake in Escherichia coli K-12. [PDF]

open access: yesPLoS ONE, 2013
The monocarboxylate pyruvate is an important metabolite and can serve as sole carbon source for Escherichia coli. Although specific pyruvate transporters have been identified in two bacterial species, pyruvate transport is not well understood in E. coli.
Jens Kreth   +2 more
doaj   +1 more source

The transport properties of activated carbon fibers [PDF]

open access: yes, 1990
The transport properties of activated isotropic pitch-based carbon fibers with surface area 1000 m{sup 2}/g have been investigated. We report preliminary results on the electrical conductivity, the magnetoresistance, the thermal conductivity and the thermopower of these fibers as a function of temperature.
di Vittorio, S. L.   +4 more
openaire   +2 more sources

Special Issue “Fabrication and Characterization of Nanostructured Carbon Electrodes”

open access: yesNanomaterials, 2023
The nanostructured carbon materials are promising electrode materials and have been widely studied owing to their tailorable structures, which offer large active sites and reduce the path of transport for mass and charge and thus provide fast pathways ...
Meltem Yanilmaz, Jiadeng Zhu
doaj   +1 more source

Intrinsic origin of electron scattering at 4H-SiC(0001)/SiO$_2$ [PDF]

open access: yes, 2016
We introduce a first-principles study to clarify the carrier-scattering property at the SiC/SiO$_2$. Interestingly, the electron transport at the conduction-band edge is significantly affected by the introduction of oxygen, even though there are no ...
Iwase, Shigeru   +2 more
core   +2 more sources

Drought effects on photosynthesis and implications of photoassimilate distribution in 11C-labeled leaves in the African tropical tree species Maesopsis eminii Engl. [PDF]

open access: yes, 2018
Photoassimilate distribution inside leaves is less studied than photosynthesis, and yet the topic is important as it gives insights into the vital roles played by leaves in plant survival. We combined greenhouse measurements of light response curves with
Epila, Jackie   +2 more
core   +2 more sources

Destruction of Refractory Carbon in Protoplanetary Disks [PDF]

open access: yes, 2017
The Earth and other rocky bodies in the inner solar system contain significantly less carbon than the primordial materials that seeded their formation. These carbon-poor objects include the parent bodies of primitive meteorites, suggesting that at least ...
Anderson, Dana E.   +5 more
core   +3 more sources

Model-based analysis of solute transport and potential carbon mineralization in the active layer of a hillslope underlain by permafrost with seasonal variability and climate change [PDF]

open access: yesThe Cryosphere
Permafrost carbon, stored in frozen organic matter across vast Arctic and sub-Arctic regions, represents a substantial and increasingly vulnerable carbon reservoir.
A. Hamm   +8 more
doaj   +1 more source

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