87 research outputs found
Creation of models for forecasting banks' net incomes from currency operations
No full textIn the present article the author has the aims, such as identifying the role of net incomes from currency operations in the process of forming commercial banks' profit, exploring present models for forecasting their size and creation new ones, which take in account different factors which influence on it. They're created on the base of system structural, correlation and factorial analysis. In the result of this investigation the new models were received, they express the specific of each kind of currency operations (conversion, loans and deposits and cash settlement), and the model for the common net income from all kinds of currency operations
Phenomenological Model of Information Distribution and Movement in the Systems of Organizational Management
No full textThe article considers the problems connected either with the very essence and nature of the information or the organization of its distribution and movement in the social and economic systems. In the result of research the conclusion is made that despite the long-standing tradition the term “information” cannot be construed only as “data” or “records” by the reason of the fact that for the first time it had been used in Aristotle Latin translations for the notation of the matter transmission into form(in-formatio) driven by the idea. Taking into account the given circumstance the article suggests the new interpretation of the concept about the economic and managerial information as the aggregate of intangible resources capable to give rise to quantitative and qualitative changes in material system, being the object of management. The traditional schemes of information distribution and transmission in management systems are analyzed in the article and the conclusion is made about their limitation due to lock in the figure of individual manager. The scheme of information distribution and transmission in management system based on management team members’ equality, formed in accordance with modern management theory, changes in combining PAEI management styles is offered as the alternative
TM Electromagnetic Scattering from Multilayered Dielectric Bodies -- Numerical Solution
No full textAn integral equation approach is derived for an electromagnetic scattering from an M multilayered dielectric domain. The integral equation is valid for 2D and 3D Helmholtz equation. Here we show the numerical solution for the 2D case by using the Nystrom method. For validating the method we develop a mode matching method for the case when the domains are multilayered circular cylinders and give numerical results for illustrating the algorithm
Spatiotemporal evolution of radio wave pump-induced ionospheric phenomena near the fourth electron gyroharmonic
No full textOn 12 November 2001, the European Incoherent Scatter (EISCAT) high-frequency (HF) radio wave transmitter facility, operating in O-mode at 5.423 MHz with 550 MW effective radiated power, produced artificial optical rings which appeared immediately at transmitter turn-on and collapsed into blobs after ∼60 s while descending in altitude. A similar descent in altitude was observed in the EISCAT ultra high frequency (UHF) ion line enhancements. Likewise, the stimulated electromagnetic emission (SEE) spectra changed as the pump frequency approached the fourth electron gyroharmonic due to pump-induced variations in electron concentration. Optical recordings were made from Skibotn at 630.0 and 557.7 nm and from Ramfjord in white light. The altitude of the initial optical ring and steady state blob has been estimated by triangulation. The evolution in altitude of the optical emissions, ion line enhancements, and SEE spectra all show a similar morphology but are generally not at exactly the same height. Typically, the optical height is close to and a few kilometers below that of the radar backscatter but sometimes above it, both of which are above the SEE generation altitude. There is evidence that upper hybrid (UH) waves, which propagate perpendicular to the magnetic field line, and Langmuir (L) waves, which propagate parallel to the magnetic field line, act simultaneously to accelerate electrons even in the steady state
Generalizing Binary Solubility Data for Low-Volatile Liquids in Supercritical Fluids
No full textEXISTING GENERALIZATION METHODS The key parameters that govern the feasibility of the separation of a mixture by supercritical fluid extraction are the binary solubilities of the components of the mixture in the extractant over a wide range of state variables. Several approaches to predicting the binary solubilities of liquids in compressed gases are known (1) where y i and y j are the concentrations (mole fractions) of the components; B ii is the second virial coefficient, which accounts for the interaction between identical molecules; B ij is the second virial cross coefficient, which accounts for the interaction between different molecules; and v m and z m are the molar volume and the compressibility of the gas phase, respectively. Within the framework of the thermodynamic similarity method, B ij is computed by various relations of the form where P cr and v cr are, respectively, the critical pressure and the critical molar volume of the component; is the characteristic temperature; and ω ij is the characteristic acentricity factor. There is a comprehensive review [2] of methods for calculating the characteristic cross parameters of mixtures, including higher order virial coefficients. ω ij is usually defined as the arithmetic mean of the acentricity factors of the mixture components. It was suggested [1] to calculate the characteristic temperature with the use of the empirical binary intermolecular interaction parameter k ij : ). = A generalized formula for k ij has been derived [1] for the interaction of organic liquids with a compressed gaseous solvent. The formula gives k ij as a function of the number of carbon atoms in the molecule of the dissolved liquid: where n is the number of carbon atoms in the molecules of dissolved n -paraffins, ketones, alcohols, and aromatic hydrocarbons. The interactions of nonpolar molecules with one another and of nonpolar molecules with polar molecules have been considered. The generalized formula is empirical, and the discrepancy between the parameters k ij obtained by experimental data processing and the generalized curve considerably exceeds the experimental error. The binary solubilities of low-volatile substances, including solids, have been represented [3] as a function of the solvent density: where y is the binary solubility (mole fraction), P is the pressure in the system, P 0 is the standard pressure, ρ is the solvent density, and ρ 0 is the standard solvent density. The parameters A and B are interrelated b
Astronomy Letters, V. 27, I. 06
No full textAstronomy Letters -- June 2001
Volume 27, Issue 6, pp. 345-409
The Ursa Major Supercluster of Galaxies: II. The Structure and Peculiar Velocities
F. G. Kopylova and A. I. Kopylov
pp. 345-352 Full Text: PDF (120 kB)
Type Ia Supernovae: An Explosion in the Regime of a Convergent Delayed Detonation Wave
N. V. Dunina-Barkovskaya, V. S. Imshennik, and S. I. Blinnikov
pp. 353-362 Full Text: PDF (200 kB)
Low State of the X-ray Burster SLX 1732-304 in the Globular Cluster Terzan 1 According to RXTE Data
S. V. Molkov, S. A. Grebenev, and A. A. Lutovinov
pp. 363-365 Full Text: PDF (60 kB)
Relativistic Gravitational Collapse of a Cool White Dwarf with Allowance for the Neutronization Kinetics
A. I. Voropinov and M. A. Podurets
pp. 366-375 Full Text: PDF (113 kB)
Detection of Optical Circular Polarization in the Herbig Ae Star WW Vul
D. N. Shakhovskoi, O. S. Shulov, and E. N. Kopatskaya
pp. 376-378 Full Text: PDF (45 kB)
Close Binary Systems in Star-Forming Regions: EQ Ori in the Ori I Association
M. M. Zakirov
pp. 379-385 Full Text: PDF (107 kB)
Hipparcos Trigonometric Parallaxes and the Distance Scale for Open Star Clusters
A. V. Loktin and G. V. Beshenov
pp. 386-390 Full Text: PDF (59 kB)
An Astrometric Study of the Triple Star ADS 48
O. V. Kiyaeva, A. A. Kiselev, E. V. Polyakov, and V. B. Rafal'skii
pp. 391-397 Full Text: PDF (98 kB)
Preliminary Results of the Alignment and Hartmann Tests of the AZT-22 Telescope
Z. Aslan, I. F. Bikmaev, É. A. Vitrichenko, R. I. Gumerov, L. A. Dembo, S. F. Kamus, V. Keskin, U. Kiziloglu, M. N. Pavlinsky, L. N. Panteleev, N. A. Sakhibullin, S. O. Selam, R. A. Sunyaev, I. Khamitov, and A. L. Yaskovich
pp. 398-403 Full Text: PDF (120 kB)
Orbital Evolution of Uranus's New Outer Satellites
M. A. Vashkov'yak
pp. 404-409 Full Text: PDF (159 kB)Archived web conten
OIL SLUDGE AND TAR SANDS AS AN IMPORTANT SOURCE OIL AND PROBLEMATIC ENVIRONMENTAL FACTORS
No full textThe paper represents the results of implementation of liquid and supercritical fluid extraction processes in order to extract oil-products from oil sludge. A mixture consisting of propane (75 wt%) and butane (25 wt%) has been applied as the extractant. Initial oil sludge is characterized by the absence of water and content of solids in an amount of 12.05% by weight. The extraction processes have been conducted in a temperature range of85-160°C and pressure range of 5-50 MPa
On the location and structure of the artificial 630-nm airglow patch over Sura facility
No full textInternational audienceResults are presented of the artificial optical emission of the atomic oxygen red line (the radiation of level O(1D) with a wavelength of 630 nm) from the HF-pumped ionosphere, obtained in September 2004 at the SURA heating facility situated near Nizhny Novgorod, Russia. For vertical pumping the airglow patch was increasingly displaced to the north, up to 7?8°, with increasing reflection altitude. For large brightness of the emission, the airglow patch started to develop at the northern edge of the pump beam and later expanded to the south. These effects are attributed to the precipitation of supra-thermal electrons from the pump wave upper hybrid resonance altitude to lower altitudes where excitation of the O(1D) level is more effective due to the larger density of atomic oxygen, and the O(1D) lifetime is shorter. For a pump beam inclination of 12° to the south, the optical spot was displaced by 4?5° to the south relative to the straight-line projection of the pump beam onto the sky. This exceeds that expected from the ray tracing and may be related, most probably, to the so-called "magnetic zenith" effect. In addition, mid-scale (1?10 km) magnetic field-aligned structures were observed in the pumped volume of the ionosphere. The east-west motions of the airglow patches are also analyzed
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