The article is devoted to the topic of interdisciplinary balance in the solution of problems of the urban transport systems development. On the example of the concept of the transport system in Yekaterinburg development, the authors suggest ways of introducing interdisciplinary research: the author's multi-criteria system for assessing the transport system is proposed. The introductory part of the article is devoted to the formulation of the main goals and tasks of the development of transport systems in the Russian city. When considering the transport system in Yekaterinburg, it is proposed to use the zoning of the city's territory to formulate strategies for its development, taking into account local conditions. Also, the authors propose to take into account at the project level various international trends in the development of transport systems.
Keywords: transport systems, master plan, urban planning, interdisciplinary research
The manuscript traced the impact of changes in the content of alkaline-earth elements on the dielectric spectra of solid solutions based on lead titanate. Two concentration areas with sharply differing nature of the manifestations of dispersion phenomena were identified. First (0.02≤α1≤0.24) is characterized by strong dispersion ε/ε0 in all temperature range and not allow to generate maximum of ε/ε0 for Curie temperature at low frequencies, the second (0.24≤α1≤0.36) - a sharp decrease of Δε in the ferroelectric phase and complete disappearance of it in the solid solutions, SS, with α1 = 0.36, indicating stabilization of the structure with the introduction of alkaline SS elements. It was found that as increased the concentration of modifiers in the compositions there is a stabilization of their structure with a gradual decrease in the phase transition temperature. Formation of two concentration areas where changes macro properties SS is undoubtedly a consequence of their correlation with the phase diagram of the studied SS, which is experiencing a transformation in the neighborhood of α1 ~ 0.24, due to the transition from two-phase to single-phase state. The results obtained by the authors can be used in the development of high-temperature (α1 0.24 ) anisotropic ferroelectric materials.
Keywords: ferroelectric piezoceramics, lead titanate, alkaline earth elements, modifiers, solid phase synthesis dielectric spectra