313 research outputs found
Identification of electrofacies on the basis of well logging to determine sedimentation environment of horizon JK[2] in Em-Egovskoe field (Western Siberia)
Well logging results are one of the ways to study the buried terrigenous rocks genesis. To ensure the most objective characterization of the rock and identification of electrofacies it is necessary to use a complex geological and geophysical survey. The comprehensive investigations of environmental conditions based on well logging have been performed for the horizon JK[2] of Tumenskoe formation in Em-Egovskoe area, Krasnoleninskoe field (Western Siberia). The defined electrofacies were compared with the results of earlier conducted granulometric and mineralogical analyses. The totality of research provided for a conclusion that the investigated sediments of horizon JK2 had been formed within the destructive tidal delta. Thus, objective facies prediction can only be ensured by analyzing core and well logging data comprehensively
Simulation of the communication system between an AUV group and a surface station
An object model for simulation of the communications system of an autonomous underwater vehicles (AUV) group with a surface station is proposed in the paper. Implementation of the model is made on the basis of the software package "Object Distribution Simulation". All structural relationships and behavior details are described. The application was developed on the basis of the proposed model and is now used for computational experiments on the simulation of the communications system between the autonomous underwater vehicles group and a surface station
Ultrasonic impact on a metal melt containing electrostatically charged nanoparticles
Ultrasonic processing is applied to modify nanopowders of metals for the creation of composition alloys. The introduction of particles to metal is prevented by their low wettability in the metal melt. We use electrostatic charging of particles to increase the wettability of particles and to prevent their agglomeration. Mechanisms of the ultrasonic impact on melts of metals containing charged nanoparticles are considered. We find that an electric charge of the surface leads to a decrease in the contact angle. Expressions for the time of ultrasonic processing depending on physical and chemical characteristics of particles and the melt are found
СПРАВЕДЛИВОСТЬ КАК ВЫСШАЯ ЦЕННОСТЬ: ИСЛАМ В СОВРЕМЕННОМ ДИАЛОГЕ ЦИВИЛИЗАЦИЙ
The article considers the modern problems of moral and humanistic values as part of religious traditions. The concept of justice in Islam and the modern projections of the idea of justice in the context of value base in the dialogue of religions and civilizations are particularly accentuated.В статье рассматриваются современные проблемы нравственно-гуманистических ценностей в религиозных традициях. Особый акценделается на понимании справедливости в исламе, современных проекциях понимания справедливости в контексте ценностных оснований в диалоге религий и цивилизаций
Interconnection of psychology, color and design
The paper presents the direct interconnection between color, design and psychology on the basis of theoretical and historical analysis. It describes the peculiarities of how peopleperceive color. In the paper some of the historical details concerning the way our ancestors used color are presented and the modern scientific discoveries in the field of psychology, which give the evidence of the great psychological, emotional and physical influence of color on a person are shown as well. The paper discloses some design features related to this effect, i.e. modern designers use peculiarities of color perception, for example, in the design of advertising by sending certain signals to the potential buyer, to choose a particular product. The significance of the primary colors used in advertising design (red, yellow, green, blue, brown, black) is stated briefly. The paper summarizes the results of the work carried out in this regard
Radio properties of high-redshift galaxies at
Study of high-redshift radio galaxies (HzRGs) can shed light on the active
galactic nuclei (AGNs) evolution in massive elliptical galaxies. The vast
majority of observed high-redshift AGNs are quasars, and there are very few
radio galaxies at redshifts . We present the radio properties of 173
sources optically identified with radio galaxies at with flux
densities mJy. Literature data were collected for
compilation of broadband radio spectra, estimation of radio variability, radio
luminosity, and radio loudness. Almost 60% of the galaxies have steep or
ultra-steep radio spectra; 22% have flat, inverted, upturn, and complex
spectral shapes, and 18% have peaked spectra (PS). The majority of the PS
sources in the sample (20/31) are megahertz-peaked spectrum sources candidates,
i.e. possibly very young and compact radio galaxies. The median values of the
variability indices at 11 and 5 GHz are and ,
which generally indicates a weak or moderate character of the long-term
variability of the studied galaxies. The typical radio luminosity and radio
loudness are - erg*s and -
respectively. We have found less prominent features of the bright compact radio
cores for our sample compared to high-redshift quasars at . The variety
of the obtained radio properties shows the different conditions for the
formation of radio emission sources in galaxies
Use of Sorghum for Enhancing the Biodiversity and Nutritional Value of Semi-Desert Pasture Ecosystems
The article presents the results of studies on the adaptive potential of sorghum used for restoration of degraded pasture ecosystems, increasing their biodiversity and nutritional value. The region chosen for the experiment is a semi-desert arid part of southern Russia. The aridity coefficient is 0.11–0.30 which is typical of the arid zone. The annual volume of precipitation is 125-265 mm. Two varieties of sorghum – Travinka and Caravan – were studied. They were grown with different thickness: 10 thousand, 20 thousand and 40 thousand plants per 1 hectare. During the growing season, there was soil and atmospheric drought. The best indicators of green mass yield were recorded for Travinka for the variant “40 thousand plants per hectare – 7.9 tons per hectare, and for Caravan for the variant “20 thousand plants per hecrate – 3.9 tons per hectare. Compared with natural pasture, sorghum productivity is 18 times higher by green mass yield and 26 times higher by dry mass yield (the best options). The analysis of the chemical composition and nutritional value of sorghum showed that compared to the plants of natural pasture, sorghum is a more nutritious fodder plant. Its nutritional value is more by 0.24 feed units per 1 kg and by 1.9 % by the mass of crude protein. It is better than other plants by the content of sugar content (79 g per 1 kg) and macronutrients
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