The Essence of Physical and Chemical Methods of Analysis

This article is devoted to physicochemical methods (PhCMA) analysis, based on the dependence of the physical properties of a substance on its nature, and the analytical signal is the value of the physical property, functionally related to the concentration or mass of the determined component

Ground states and Gibbs measures of Ising model with competing interactions and an external field on a Cayley tree

We consider the Ising model with competing interactions and a nonzero external field on the Cayley tree of order two. We describe ground states and verify the Peierls condition for the model. Using a contour argument we show the existence of two different Gibbs measures.Comment: 15 Page

Solution of cancerogen asbestos problems in obtaining harmless fibre products

The article presents the ways of obtaining ecologic harmless composite materials based on mineral fibers in the replacement of asbestos containing good

Useful and harmful propeties of natural and synthetic food additive

The article discusses the useful and harmful properties of natural and synthetic food additives