Microscopic particle decentralized solution having microscopic particles with different diameters are decentralized, wherein: the microscopic particle decentralized solution has two peaks in a granularity distribution, at a large diameter and a small diameter; and microscopic particle mixtures satisfying the following relationships are decentralized in the solution;R>r and n>3. The engine further includes a combustor that may have a centerline spaced from the rotational axes of each spool assembly. for 2 months or a residual ratio of G-CSF of 90% or more after accelerated testing at 50\xb0 C. Light fragments are evaluated with respect to the frustum to select light fragments blocking light between the light source and the scene fragment.