northwest Canada and Namibia that capture multiple large-amplitude (over 10 per mil) negative carbon isotope anomalies, and use these data in a new quantitative mixing model to examine the behaviour of the Neoproterozoic carbon cycle. We find that carbonate and organic carbon isotope...
type, nitrogen fixation capacity, and wood density all significantly explained variation in carbon accumulation rates. Prior land use significantly affected the rate of aboveground carbon accumulation, with rates on formerly harvested land (t = −3.95,P = < 0.001) and pasture (t =...
However, no obvious voltage plateau was observed during the cycle suggesting a disordered stacking of the dual-doped carbon. The reversible capacity as high as 770 mAh/g at 0.5 A/g, with a rate capacity of 380 mAh/g at 15 A/g, supported that heteroatom doping provides additional Li ...
In the initial part of the heating cycle, the mesophase will appear as small bright spheres. On heating further, these spheres collide and coalesce to form lamellas of the mesophase (Fig. 7) which has a nematic liquid crystal structure [36]. Download: Download high-res image (502KB) Downl...
Here we show, through the assessment of time series data from 522 remote lakes and streams in North America and northern Europe, that rising trends in DOC between 1990 and 2004 can be concisely explained by a simple model based solely on changes in deposition chemistry and catchment acid-...
We also believe that performance improvement should be easier to manage, so these tools are designed to work seamlessly alongside your existing processes. Insights provided by Higg integrate into your company’s internal product life-cycle management system, and can even be shared directly with your...
A diurnal cycle in secondary BrC absorption was explained by the formation of light-absorbing chromophores by photochemical oxidation after sunrise followed by photobleaching of the chromophores under the more oxidizing conditions as the day progressed. Multimethod analyses showed that biomass burning in ...
Soil carbon dynamics is strongly controlled by depth globally, with increasingly slow dynamics found at depth. The mechanistic basis remains however controversial, limiting our ability to predict carbon cycle-climate feedbacks. Here we combine radiocarbo
Photocatalytic N-formylation of amines via a reductive quenching cycle in the presence of air. Org. Biomol. Chem. 15, 2536–2540 (2017). Article CAS PubMed Google Scholar Wada, Y., Kitamura, T. & Yanagida, S. CO2-fixation into organic carbonyl compounds in visible-light-induced ...
Carbon dioxide electroreduction(CO2ER) exploited in conjugation with renewable energy sources can open the path to a carbon-neutral energy cycle, concurrently offering the possibility to synthesize low-carbon fuels. In the last decades, a huge amount of work has been carried out by the scientific ...