In 1954, the International Atomic Energy Agency (IAEA), in co-operation with the World Meteorological Organization (WMO), conducted a worldwide survey of oxygen and hydrogen isotope content in precipitation. Since 1961, more than 780 meteorological stations in 101 countries have been monthly ...
Temperature-programmed surface reaction (TPSR) analysis was used to evaluate the intrinsic activity of the catalysts for PDH. We examined the TPSR over γ-alumina-supported Pt nanoparticles, Pt/Cu SAA, and Cu nanoparticles for propane–deuterium isotope scrambling (P–D scrambling) to compare their...
rechargeable metal–air batteries and regenerative fuel cells. The adsorption energy scaling relations between the reaction intermediates, however, impose a large intrinsic overpotential and sluggish reaction kinetics on OER catalysts. Developing advanced electrocatalysts with ...
The low and constant 137Cs concentration in the sapwood suddenly increased approximately tenfold in the intermediate wood between the sapwood and the heartwood, after which the high constant 137Cs concentration remained at the center of the heartwood. Here, we tested whether the differences in ...
The temperature parameter varied approximately between 26.18 °C and 26.38 °C (samples from the first collection) and 23.00 °C and 25.34 °C (samples from the second collection), with no significant differences between the two samples. The pH in both periods varied between 5.0 and 6.2, and...
The temperature parameter varied approximately between 26.18 °C and 26.38 °C (samples from the first collection) and 23.00 °C and 25.34 °C (samples from the second collection), with no significant differences between the two samples. The pH in both periods varied between 5.0 and 6.2, and...
Nevertheless, such an occurrence of Nb–Ta mineralization is rare in other LIPs [48,49]. The genetic relationship between the hydrothermal fluids and the Nb–Ta enrichment of these syenitic dikes is not clear. Previous research on the syenite type Nb–Ta deposit in the Panxi region have focu...
Predators have been identified as the shaping force behind mutually beneficial relationships between species such as clownfish and anemones.