نتایج جستجو برای: carbon migration
تعداد نتایج: 420003 فیلتر نتایج به سال:
Carbon transfer via international trade affects the spatial pattern of global carbon emissions by redistributing emissions related to production of goods and services. It has potential impacts on attribution of the responsibility of various countries for climate change and formulation of carbon-reduction policies. However, the effect of carbon transfer on climate change has not been quantified....
Phenyl a-aminoketones have been shown to undergo carbon skeleton rearrangement to unconjugated aminoketones when heated a t 200-240". The probable intermediate is an unconjugated hydroxyimine formed by base removal of an amine hydrogen and migration of an alkyl group. The hydroxyimine can subsequently rearrange by base removal of a hydroxyl proton and migration of the phenyl grouping. An amine ...
Although surface diffusion is critical for many physical and chemical processes, including the epitaxial growth of crystals heterogeneous catalysis, it particularly challenging to directly study. Here, we estimate carbon adatom migration barrier on freestanding monolayer graphene by quantifying its temperature-dependent electron knock-on damage. Due fast healing vacancies diffusing adatoms, dam...
The reaction of ferrocenyldiphenylphosphine with styrene oxide in ethanol gives, as the major product, ferrocenyl(phenyl)(l,2-diphenylethyl)phosphine oxide (5, R = Ph), the result of a rearrangement involving phenyl migration from phosphorus to adjacent carbon in the decomposition of a vinylphosphonium ion arising from protonation and subsequent elimination of water from the initially-formed ph...
Cloud Computing offers indispensable infrastructure for storage and computing facilities for development of diversified services. The large utilization of resources leads to increased energy consumption that has imposed a limit on performance growth. Owing to high operational costs and carbon dioxide footprints, an efficient energy management technique needs to be developed and deployed that re...
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