Reactive self-heating model of aluminum spherical nanoparticles

Aluminum-oxygen reaction is important in many highly energetic, high pressure generating systems. Recent experiments with nanostructured thermites suggest that oxidation of aluminum nanoparticles occurs in a few microseconds. Such rapid reaction cannot be explained by a conventional diffusion-based mechanism. We present a rapid oxidation model of a spherical aluminum nanoparticle, using Cabrera-Mott moving boundary mechanism, and taking self-heating into account. In our model, electric potential solves the nonlinear Poisson equation. In contrast with the Coulomb potential, a "double-layer" type solution for the potential and self-heating leads to enhanced oxidation rates. At maximal reaction temperature of 2000 C, our model predicts overall oxidation time scale in microseconds range, in agreement with experimental evidence.Comment: submitte

SUN Cube: A New Stakeholder Management System for the Post-Merger Integration Process

Statistically more than 50% of all mergers do not achieve synergies. In majority of cases the reason is the failure in post-merger integration (PMI). This paper develops further how the Sun Cube framework can be used in capturing synergies during PMI. The SUN Cube is a new stakeholder management system that can be used in M&A and can be defined from four perspectives. One of the main achievements is the quantitative methodology suggesting top management and shareholders how assess readiness and possible effects on synergies in specific figures. The Sun Cube framework helps to focus on KPI of specific stakeholders

STUDY OF THE EXISTING SYSTEM OF LOGISTICS SUPPORT IN CONSTRUCTION

The article deals with the concept of logistics, presents particular logistical support in a number of countries. The role and significance of the subsystem of logistics in the construction industry. The problems of logistics in the field of construction. The article suggests measures to improve the system of logistics domestic construction industry