Mechanical responses location

ABSTRACT The locations, magnitudes, variations and mechanisms responsible for the atmospheric C02 sink are uncertain and under debate. Previous studies concentrated mainly on oceans, and soil and terrestrial vegetation as sinks. Here, we show that there is an important C02 sink in carbonate dissolution, the global water cycle and photosynthetic uptake of DIC by aquatic ecosystems. The sink constitutes up to 0.82 Pg C/a 0.24 Pg C/a is delivered to oceans via rivers and 0.22 Pg C/a by meteoric precipitation, 0.12 Pg C/a is returned to the atmosphere, and 0.23 Pg C/a is stored in the continental aquatic ecosystem. The net sink could be as much as 0.70 Pg C/a, may increase with intensification of the global water cycle, increase in C02 and carbonate dust in atmosphere, reforestation/afforestation, and with fertilization of aquatic ecosystems. Under the projection of global warming for the year 2100, it is estimated that this C02 sink may increase by 22%, or about 0.18 Pg c/a. 

Based on the above discussed experimental results and data from previous studies we propose that the observed UC PL originates from cascade a phonon-assisted excitation via a set of below-gap states. The photon energy UC mechanism responsible for production of the ASPL in CdTe QDs is therefore attributed to the excitation from the valence band into one of the below-gap trap states located near the CB (CBtrap). Thermally activated retrapping from the CBtrap state causes repopulation of the trap states and possible transitions to the conduction band... 

Another metaflo-supramolecular system, on the basis of 2,6-bis(l,2,3-triazol-4-yl)pyridine (BTP) as well as Zn and Eu ", respectively, was introduced by Weng and coworkers [95], The approach is quite different from the majority of mechanically responsive metaflo-supramolecular polymers heretofore described the ligands were designed to be part of the polymer backbone instead of being located at the end of the polymer chains. Telechelic pTHF was thus copolymerized with the dUiydroxy-functionalized BTP ligand and hexamethylene diisocyanate to produce a polyurethane that was further cross-linked through the addition of metal ions (Fig. 28a). The metal-rich domains phase-separate from the pTHF soft... 

The elastic moduli of the as-sintered porous LSCF cathode film samples were measured using a NanoTest nanoindentation platform (Micromaterials, UK) with a spherical diamond indenter tip of 50pm diameter. Compared with sharp indenters like Berkovich tips, benefits of using spherical tips include less sensitivity to surface condition. At least 20 measurements were conducted in different locations for each sample in order to measure the variability of the mechanical response of the sample. Prior to nanoindentation tests, the NanoTest platform was precisely calibrated using a standard sihca sample to establish the system frame compliance. 

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