Spatial-temporal structure of seismicity of the North Tien Shan and its changeunder effect of high energy electromagnetic pulses

The effect of high-energy electromagnetic pulses emitted by a magnetohydrodynamic generator used as a source for deep electrical sounding of the crust on spatial-temporal structure of seismicity of the North Tien Shan is explored. Five-six years periodicity of changes in spatial distribution of seismicity was revealed. The effect of electromagnetic pulses increases the stability of the spatial distribution of seismicity over time and simultaneously speeds up cycles of its transformations, which develop on stabilization background. Increasing of seismic energy release after electromagnetic impacts is observed basically in most active zones. Periodic variation of efficiency of earthquakes triggering on the distance to the MHD-generator was detected. It was shown that electromagnetic pulses give rise to an appreciable increase in the rate of local earthquakes, occurring around 2-6 days after the pulses. Total earthquakes energy released after start-ups was by 2.03·1015 J greater than the energy released before them. At the same time, the total energy transmitted by the MHD-generator was 1.1·109 J, i.e. six orders of magnitude smaller. Consequently, the electromagnetic pulses initiated the release of the energy that had been stored in the crust due to activity of natural tectonic processes in the form of comparatively small earthquakes, which leads to an additional release of tectonic stresses

What Powers the 2006 Outburst of the Symbiotic Star BF Cygni?

BF Cygni is a classical symbiotic binary. Its optical light curve occasionally shows outbursts of the Z And-type, whose nature is not well understood. During the 2006 August, BF Cyg underwent the recent outburst, and continues its active phase to the present. The aim of this contribution is to determine the fundamental parameters of the hot component in the binary during the active phase. For this purpose we used a high- and low-resolution optical spectroscopy and the multicolour UBV RCIC photometry. Our photometric monitoring revealed that a high level of the star’s brightness lasts for unusually long time of > 7 years. A sharp violet-shifted absorption component and broad emission wings in the Hα profile developed during the whole active phase. From 2009, our spectra revealed a bipolar ejection from the white dwarf (WD). Modelling the spectral energy distribution (SED) of the low-resolution spectra showed simultaneous presence of a warm (< 10 000 K) disk-like pseudophotosphere and a strong nebular component of radiation (emission measure of ~1061 cm−3). The luminosity of the hot active object was estimated to > 5−8×103 Lʘ. Such high luminosity, sustained for the time of years, can be understood as a result of an enhanced transient accretion rate throughout a large disk, leading also to formation of collimated ejection from the WD

ANALYSIS OF MODERN METHODS OF DETERMINING OF THE COST OF MANUFACTURED PRODUCT

The main methods of determining cost of production, for example, total costing method, coating method, method of return calculation are discussed in this article. Pecularities of using of different methods in economic practice are analyzed. Influence of prime cost on the pricing policy of the enterprise and the performances of its business activities is reflected

ANALYSIS OF MODERN METHODS OF DETERMINING OF THE COST OF MANUFACTURED PRODUCT

The main methods of determining cost of production, for example, total costing method, coating method, method of return calculation are discussed in this article. Pecularities of using of different methods in economic practice are analyzed. Influence of prime cost on the pricing policy of the enterprise and the performances of its business activities is reflected

Studying Recognition Dynamics of Monochrome Symbolic Images by a Rapid Serial Visual Presentation Method

The paper describes the application of the rapid serial visual presentation (SRVP) method to study the dynamics of recognition time of visual stimuli by an untrained observer. The method is implemented on the basis of a specially developed program presenting stimulus material on a computer screen according to a given algorithm. Raster monochrome images of two letters of the Russian alphabet, depicted in two significantly different styles, acted as stimulus material. Presentation was carried out in a specialized viewing camera. When evaluating the results of the experiment, ruggedness was taken into account as a quantitative measure of the lettering. In the experiment, an increase in the recognition time of all types of stimuli with an increase in the number of presentations was found. Using the program greatly facilitated the experiment. © 2020 American Institute of Physics Inc.. All rights reserved