The crystal structure of perovskite-type catalysts, Ca_xLa_(1-x)MnO_(3+λ), remains unchangedwhen x varies from 0 to 1 as identified by X-ray analysis. Both no
Computed transfer functions for ε=0.60 and 0.75 annular pupils of 2.67 mm o.d. showthat absorption of the average spherical aberration of the eye is still inc