Now showing items 1-3 of 3
Control of pore structures and activity of PGM-alumina exhaust catalysts
Pore sizes in y-alumina were controlled with additives (porogens) during formation of aluminium hydroxide. Porogens were active in the mesopore range with a sharply defined pore size distribution. Porogens that enhanced ...
Shock acceleration as source of the anomalous component of cosmic rays in the heliosphere
(PU vir CHO, 1995)
Anomalous cosmic rays are low energy enhancements of the cosmic ray intensities that cannot be explained by standard modulation of galactic cosmic rays entering the heliosphere. Presently it is thought that these anomalous ...
Nonparametric estimation of the antimode and the minimum of a density function
(Potchefstroom University for Christian Higher Education, 1995, 1995)
The study of the estimation of the antimode and the minimum of a density function has been neglected in the li terature, in spite of their useful applications. The main objective of this thesis is to propose and study ...