Nacionalni portal odprte znanosti

Formulas are derived for the spherical contact distribution of a planar germ-grain model Z with circular grains where the germs form either a "segmentcluster" process or a "line-based" Poisson point process. They are used in order to estimate the intensity lambda of the germ process by means ofthe s ...

This paper discusses various estimators for the nearest neighbour distance distribution function D of a stationary point process and for the quadratic contact distribution function Hq of a stationary random closed set. It recommends the use of Hanisch's estimator of D, which is of Horvitz-Thompson t ...

This paper reports on spatial-statistical analyses for simulated random packings of spheres with random diameters. The simulation methods are the force-biased algorithm and the Jodrey-Tory sedimentation algorithm. The spherediameters are taken as constant or following a bimodal or lognormal distribu ...