2003. № 10

Humanitarian and social studies

Welmogko I. N.

In the "The national problems of the russian regions and the Russian parliament" the attitudes of parliamentary factions to the national problems of different regions of the Russian Empire are analysed. The article has a large documental basis, the considerable part of which consists of the stenographic reports of the plenary meetings of State Duma. Researching in the stenogaphs, archival documents, periodicals' materials the author comes to the conclusion that the national were touched upor during the discussion of various questions at the Duma's meetings and added a special acuteness to the parliamentary debates.

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Aerospace propulsion engineering

Pismenny V. L.

The range of the specific parameters change of a two-chamber turbo-jet engine is determined. The influence of flight conditions on specific parameters of a two-chamber turbo-jet engine is analysed. The comparison with a one-chamber turbo-jet engine is made.

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Economics and management

Several organizational and methodical variants of cooperation between participants of aviaton leasing process which contribute to renovation of civil aircraft park are offered. International experience in new aircrafts leasing procedures is analyzed.

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Nadiradze A. B.

The paper considers a parallel development process model of complex engineering systems. It is shown that a parallel development process has two clearly distinguished and alternate phases - a development phase and a confluence phase. Basics features of these phases are given, selection criteria of optimum confluence point frequency are determined.

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Companies of so called 4-th level of "technological chain" creating aviation equipment didn't enter the basic foundation of aviation industry, namely the program confirmed by the Government of the Russian Federation. According to one of the possible ways of foreign investment to establish a joint venture in the form of simple partnership. This venture is created for realizing the program activities on producing highly qualified energy systems with stable financial structure. The analyses and investigation of this project showed that it would be in demand and profitable.

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Mathematics. Physics. Mechanics

Khrapko R. I.

The conception of lack of uniqueness of energy-momentum tensors and of non localization of energy, which have prevented to take notice a classical electrodynamics spin, are criticized.

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Khrapko R. I.

The Beth's classical experience raises a doubt. The Beth's plate was rotated by a spin angular momentum of the beam rather then by an orbital angular momentum. We offer to illuminate a disc in space by circularly polarized electromagnetic radiation to measure the angular momentum carried by an electromagnetic beam. The theory of the Beth's experiment is presented.

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Khrapko R. I.

It is shown, that Taylor polynomials and multipoles form mutually inverse systems of functions. It establishes a relation between the Taylor expansion and the multipole expansion. Quadrupole fields are considered as an example.

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Gavrushin A. V., Nadiradze A. B.

A measurement method and some results concerning glass transparency changing under accelerated ions action are represented in the report. An idea of relative measurements is the main principle of this method. An optical pair is used for measurement - examined sample is placed in an operating space of the optical pair. Transparency value is determined as a ratio between two signals measured by optical pair: with the sample and without it. It is shown that such scheme of measurement permits to obtain relative error of measurement is about 0.01%. Such accuracy permits to record small changes of transparency caused by glass surface cleaning and other physical processes.

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Technical cybernetics. Information technology. Computer facilities

Rybin V. V.

The dynamic calculation of automatic control systems is one of the most complex stages of designing of such systems. New spectral method of calculations of non-stationary automatic control systems adopted for computer is designed. Wavelet transformations are using for digital processing of signals. These transformations are cognate with usual Furies transformations and have advantages for representations of functions in the spectral domain. The spectral technique of digital describing of signals and systems are discussed in the article. Algorithms of analyses of non-stationary determinate and stochastic control systems in the wavelet basis are obtained.

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Radio engineering. Electronics

Chikin A. V.

In this paper it is supposed that states of a digital system are presented as given binary time series. The optimal state estimation problem is solved in present of noise of discrete time observations. Once-only and recurrent algorithms of estimation, which have a little computational complexity, are given.

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