We study the contributions of an axion-like particle to electroweak precision observables. The is assumed couple with standard model gauge bosons. provide formulae valid for any mass particle. It found that effects arise not only via oblique $S$ and $U$ parameters but also radiative corrections couplings. Besides, decay $Z\to a\gamma$ affects total width $Z$ boson. All those are considered simu...

Numerical simulation of the compacting of particles for the biaxial compression test using the discrete element method is presented. Compacting is considered as the first independent step required for a proper simulation of the entire compression process. In terms of the continuum approach, compacting is regarded as generation of the initial conditions. Three different compacting scenarios with...

We study the influence of particle shape on the shear band formation in quasistatic granular media in biaxial compression test using two-dimensional Distinct Element Method (DEM). Elliptical-shaped particles are used to study the influence of particle shape. We also report an experimental verification to check the ability of DEM to model elliptical particles created by the clustering technique....

In their manuscript “Improved identification of primary biological aerosol particles using single particle mass spectrometry”, Zawadowicz et al. present a new classification method to distinguish single particles containing “biological” and “inorganic” phosphorus from their mass spectra. The algorithm is developed and tested using single particle mass spectra acquired in laboratory measurements...

We estimated the amount of test solution absorbed by each Chromosorb W AW particle (60-80 mesh) using an isotopic technique to quantitate the particle method. 14C-Labeled standard compounds like carbendazim (MBC), 5-O-methylcochliophilin A, sucrose and proline were dissolved in several solvents, and Chromosorb carrier particles were treated with the solution to coat the particle with these test...

We consider a classical test particle subject to electromagnetic and gravitational fields, described by a Lagrangian depending on the acceleration and on a fundamental length. We associate to the particle a moving local reference frame and we study its trajectory in the principal fibre bundle of all the Lorentz frames. We discuss in this framework the general form of the Lagrange equations and ...