We have studied magnetothermal instabilities both theoretically and experimentally. Magnetostriction and magnetization hysteresis loops with flux jumps were calculated over a wide range of experimental parameters employing three critical state models: the original Bean model, the Kim–Anderson model, and the exponential model. The influence of the magnetic prehistory on the flux jumps, magnetostriction, and the magnetization was investigated for the LaSrCuO crystal. H–T diagrams of flux instabilities were constructed from calculation and from experimental results. One can see good qualitative agreement between these two diagrams.
We have studied magnetothermal instabilities, giant flux jumps, both theoretically and experimentally. Magnetostriction and magnetization hysteresis loops with flux jumps were calculated over a wide range of experimental parameters employing two critical-state models: the Kim-Anderson model and the exponential model. The influence of the magnetic history on the flux jumps' magnetostriction and magnetization were investigated for the LaSrCuO single crystal. The shape of the unstable region of the critical state in the temperature-magnetic field plane was constructed from calculations and experimental results. In the Kim-Anderson model H-T diagrams of flux instabilities agree well with experimental results on HTSC single-crystal LaSrCuO and experimental results on LTSC niobium.
In the era of the transition processes associated with the change of technological structures, the growth of the intensity of information support for new products, and the growing threats of unauthorized copying of the results of intellectual activity, the problem of assessing the technical and consumer novelty of experimental products remains relevant. Solving the problems of assessing the significant changes (drift) of requirements to the consumer parameters of new products or the introduction of new functional capabilities into the technological processes of innovative enterprises creates a core competitive advantage - technical and consumer novelty. In order to complement existing methods and approaches to the problem posed, in this article we present models of functionally necessary and functionally sufficient structures that differ on the basis of the basic structures represented by the point of a multidimensional space of functionally significant parameters that take into account existing limitations imposed by the level of development of scientific and technological progress and the evolution of the social environment, allow to exert control effects on the drift functionally significant parameters at any stage of the life cycle of innovation, subject to the use of specialized Total Quality Management tools.
Modern trends and technologies of high-tech production are aimed at the active application and use of additive technologies in the production of complex industrial products of non-standard shape. The problem of complicating the design of products is acutely felt. Working with additive technologies requires special competencies of personnel capable of working in high-tech industries in modern digital production.
Composite materials are widely used in modern production processes. Polymer composite materials, especially from the ABS group with different physical and mechanical properties have great potential in the field of electronic industry. To date, additive technologies are actively used, which requires a new approach to modeling the physical properties of various polymers, passing into a new state at the time of homogenization. For products made of polymeric materials with the use of additive technologies is characterized by the dependence of the final mechanical properties not only on the design, but also on the technological modes of manufacture, as in the manufacturing process is formed by a complex spatial structure of the layers, which leads to heterogeneity of the properties of different parts of the product. The structure of polymers is related to the properties of the final product and the level of quality.
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