Iterative solution of quadratic tensor equations for mutual polarisation

To describe mutual polarisation in bulk materials containing high polarisability molecules, local fields beyond the linear approximation needs to be included. A second order tensor equation is formulated that describes this in the case of crystalline or at least locally ordered materials such as an idealised polymer. It is shown that this equation is solved by a set of recursion equations that relate the induced dipole moment, linear polarisability and first hyperpolarisability in the material to the intrinsic values of the same properties of isolated molecules. From these, macroscopic susceptibility tensors up to 2nd order can be calculated for the material

Таможенная политика РФ: цели, методы, результаты

Современное состояние России требует усилий по подъему экономики страны, формированию современных отраслей и производств, обеспечению социального прогресса и благополучия, интеграции в международные связи и отношения.Важным фактором при формировании экономических отношений - таможенная политика. Объект исследования - таможенная политика, осуществляемая Российской Федерацией. Целью работы является комплексная характеристика современной таможенной политики России с точки зрения анализа ее целей, задач, способов реализации, результатов и перспектив.The current state of Russia requires efforts to raise the country's economy, the formation of modern industries and industries, to ensure social progress and prosperity, integration into international relations and relations. An important factor in the formation of economic relations is customs policy. The object of the study is the customs policy implemented by the Russian Federation. The goal of the work is a comprehensive description of Russia's modern customs policy in terms of analyzing its goals, objectives, ways of implementation, results and prospects