The chemical and photometric evolution of star forming disk galaxies is investigated. Numerical simulations of the complex gasdynamical flows are based on our own coding of the Chemo Dynamical Smoothed Particle Hydrodynamical (CD SPH) approach, which incorporates the effects of star formation. As a first application, the model is used to describe the chemical and photometric evolution of a disk...

The purpose of cosmological simulations is to model the growth of structure in the universe. The techniques described here model the mass density of the universe with a distribution of softened particles. Evolution is simulated by following the trajectories of these particles under their mutual gravity. Since the region of the universe modelled is typically very much smaller than the horizon vo...

in this study, al/al2o3 composites with two different particle sizes of 1 µm and 0.3 µm were produced via accumulative roll bonding (arb). the microstructure evolution, mechanical properties and fracture behavior of the composites were investigated. results show that higher arb cycles are required to achieve a uniform distribution of particles in the composite with 0.3 µm particle size. during ...

We present a Wigner signed particles analysis of the lensegoverned electron state dynamics based on the quantitative theory of coherence reformulated in phase space terms. Electrostatic lenses are used for manipulating electron evolution and are therefore attractive for applications in novel engineering disciplines like entangletronics. The signed particle model of Wigner evolution enables phys...

Moments are expectation values of products powers position and momentum, taken over quantum states (or averages a set classical particles). For free particles, the evolution in case is closely related to that particles. Here we consider symmetrized moments for particles one dimension, first examining geometric properties up fourth order, as determined by their extrema inflections. These specifi...

We summarize a recent calculation of the evolution kernels of the two-particle B-meson distribution amplitudes φ+ and φ− taking into account three-particle contributions. In addition to a few phenomenological comments, we give as a new result the evolution kernel of the combination of three-particle distribution amplitudes ΨA −ΨV and confirm constraints on φ+ and φ− derived from the light-quark...