A dimensional analysis on firebrand penetration through a mesh screen was carried out to correlate the experimental data previously reported in the literature. Three dimensionless variables, one dimensionless time and two dimensionless lengths, were obtained. The resulting dimensionless parameters correlated the data well and may provide a useful framework to assess firebrand penetration throug...

In the present work a statistical investigation of the spatial distribution of longitudinal coordinates of sunspot data has been carried out. For the analysis the maximal area of umbra plus penumbra of sunspot groups has been taken into account. Spatial distributions of longitudinal coordinates of sunspot data are obtained in diierent coordinate systems (e.g. Carrington, equatorial and diierent...

In this paper, we investigate relationships between the volumes of cells of three-dimensional Voronoi tessellations and the lengths and areas of sections obtained by intersecting the tessellation with a randomly oriented plane. Here, in order to obtain analytical results, Voronoi cells are approximated to spheres. First, the probability density function for the lengths of the radii of the secti...

Excluding four H atoms, the molecule of the title compound, C(16)H(14)O, is almost planar, with an r.m.s. deviation of 0.0801 (2) Å. Due to p-π conjugation, the lengths of the two single bonds attached to the O atom are significantly different.

Abstract In this chapter, we prove a version of the main result using length spectrum instead Laplace spectrum, in case manifold is negatively curved. We introduce L -series corresponding to unitary representation fundamental group, recall its convergence properties relation volume entropy, and behaviour finite covers.