Fragmentation of crystals is an important mechanism, and a component of particle dynamics in igneous and metamorphic rocks that has received surprisingly little attention. Recent advances in textural analysis, extraction techniques, digital imaging, and computer-assisted measurements enable rapid accumulation of 3D data on particle shapes and size distributions. This paper reviews fragment size...

Formulas are derived for the Gini, Theil and Pietra coefficients a population-weighted mixture of double Pareto–lognormal (dPLN) distributions; they applied to South America 2 years. Results also provided special case lognormal distributions. The formulas useful measuring regional or global inequality in large-scale projects that utilise dPLN distributions their cases.

(Abundance distribution of common and rare plant species of Brazilian savannas along a seasonality gradient). We examined the species abundance distribution (SAD) of plant communities in: (1) a wet grassland, waterlogged throughout most of the year; (2) a seasonal savanna, with an annual dry season; and (3) a hyperseasonal savanna, with alternating drought and waterlogging over the year. We sea...

A Method for Evaluating Exposure to Nitrous Oxides by Application of Lognormal Distribution: S.S. BORJANOVIC, et al. Department of Work Physiology, Institute of Occupational Health “Dr Dragomir Karajovic”—A lognormal distribution adequately describes exposure to nitrous oxides in a work environment. The aim of this paper was to assign to the measured data a certain degree of variability which d...

With appropriate modi cations, the Ho man{Ribak algorithm that constructs constrained realizations of Gaussian random elds having the correct ensemble properties can also be used to construct constrained realizations of those non-Gaussian random elds that are obtained by transformations of an underlying Gaussian eld. For example, constrained realizations of lognormal, generalized Rayleigh, and ...

1 2 Lognormal distribution of firing time and rate from a single neuron? 3 4 5 Eszter A. Kish , Claes-Göran Granqvist , András Dér , Laszlo B. Kish 4,a 6 7 1 Center for Learning and Memory, The University of Texas at Austin, 1 University 8 Station, Stop C7000, Austin, TX 78712-0805 9 10 2 Department of Engineering Sciences, The Ångström Laboratory, Uppsala University, P. 11 O. Box 534, SE-75121...

In modeling the rate of return associated with financial instruments, common probability distributions include the lognormal, gamma, and Weibull distributions. Furthermore, the method of maximum likelihood is widely used to estimate the unknown parameters of distributions due to the highly desirable properties of maximum likelihood estimators (MLEs). These properties include asymptotic unbiased...

PURPOSE To find the most accurate mathematical description of the intravaginal ejaculation latency time (IELT) distribution in the general male population. MATERIALS AND METHODS We compared the fitness of various well-known mathematical distributions with the IELT distribution of two previously published stopwatch studies of the Caucasian general male population and a stopwatch study of Dutch...