The reactivity of Mn2O3 and late rare-earth sesquioxides in alkaline aqueous solution affords a highyield formation of rare-earth manganites, LnMnO3 (Ln 1⁄4 Ho–Lu and Y). The yield of the products depends significantly on the pH, which determines the solubility of the manganese cation, and reaction temperature, which regulates the decomposition of the insoluble rare-earth trihydroxide, Ln(OH)3,...

Correcting for atmospheric e ects is an essential part of surface-re ectance recovery from radiance measurements. Model-based atmospheric correction techniques improve the accuracy of the identi cation and classi cation of terrestrial re ectances from multi-spectral imagery. Successful and e cient removal of atmospheric e ects from remote-sensing data is a key factor in the success of Earth obs...

The properties of the cGMP-dependent channel present in membrane vesicles prepared from intact isolated bovine rod outer segments (ROS) were investigated with the optical probe neutral red. The binding of neutral red is sensitive to transport of cations across vesicular membranes by the effect of the translocated cations on the surface potential at the intravesicular membrane/water interface (S...

An addition of rare earth metals with trivalent cation radii of 1.05-1.15 Å to Fe/BEA zeolites improves hydrothermal stability for selective catalytic reduction of NO by NH(3).

Small cation size along with removal of trace iron from the electrolyte solution enables practical use earth-abundant nickel oxide electrodes for selective oxidation organic molecules over water in aqueous solutions.

Electrode potential measurements have been applied to study electrical characteristics like transport numbers, permselectivity & fixed charged density of zirconium phosphoborate ion exchange membranes. The potential measurements were made across the cation exchange membrane maintained at 27±0.1 °C, using halide and nitrate salts of alkali and alkaline earth metals as electrolytes. The membrane ...