IR Thermographic System Supplied with an Ordered Fiber Bundle for Investigation of Power Engineering Equipment and Units

In this article, the authors propose an IR imaging system, supplied with an IR bundle of ordered silver halide fibers, for the acquisition of 2D temperature field distribution in hard-to-reach places. We assessed crosstalk between neighboring individual fibers of the bundle, carried out calibration of the IR imaging system, and determined modelled defects using this system. The results showed the applicability of the system for the inspection and investigation of power engineering units. Keywords: IR fiber bundles, IR thermography, internal defects detectio

Cherenkov effect and parametric X-rays

Self-diffracted Cherenkov X-rays emitted from relativistic electrons penetrating into the periodic multilayer nanostructure are consid-ered in this workyesBelgorod State Universit

Spin excitations of the correlated semiconductor FeSi probed by THz radiation

By direct measurements of the complex optical conductivity $\sigma(\nu)$ of FeSi we have discovered a broad absorption peak centered at frequency $\nu_{0}(4.2 K) \approx 32 cm^{-1}$ that develops at temperatures below 20 K. This feature is caused by spin-polaronic states formed in the middle of the gap in the electronic density of states. We observe the spin excitations between the electronic levels split by the exchange field of $H_{e}=34\pm 6 T$. Spin fluctuations are identified as the main factor determining the formation of the spin polarons and the rich magnetic phase diagram of FeSi.Comment: 5 pages, 4 figure

Ekphrasis in the Novel "Skutarevsky" by Leonid Leonov

The article studies intertextual inclusions, allusions and ekphrasis in the novel "Skutarevsky" written by L. M. Leonov as an important feature of the poetic language of the writer's artistic texts.В статье исследуется экфрасис в романе Л. М. Леонова "Скутаревский" как важная особенность поэтического языка художественных текстов писателя