In operation the case of distribution of an ultrasonic wave in a water pipe located in the dense ground and subject to activity of radial pressure of a ground is viewed.

Keywords: acoustics, monitoring, ground, distribution, wave, water pipe

In operation the case when the cylindrical pipe is not completely filled by water is viewed, the ultrasonic radiator is located on a shell of a water pipe. It is shown, that for the given case, it is expedient to view the symmetrical and assymetric modes of distribution of an ultrasonic wave.

Keywords: acoustics, emitter, wave, water pipe

The description of electrodynamic model of the receiver of ultrasonic radiation on the basis of a piezoelectric is presented. Modelling was conducted with use of a method of electrodynamic analogies. The given method allows to apply an accessible arsenal of computational methods of electric circuits as analogues of the composite dynamic systems which class systems of monitoring of waterpipes concern.

Keywords: acoustics, the control, piezoelectric transducer, the water pipeline.

At the organization of system of monitoring of water supply systems, the important problem is definition of resistant to work of the sender and the receiver of an acoustical wave executed on the basis of piezoelectric transducers.

Keywords: acoustics, the control, piezoelectric transducer, the water pipeline.

In operation the case when the radiant of an acoustic signal is in a composite cylindrical pipe is viewed. It is shown, that at transition of a pipe of one diameter in a pipe of other diameter, it is expedient to apply modal representation of an acoustic wave to each site of a pipe.

Keywords: acoustics, the control, diameter, waterpipe

In this paper we study the dynamics of the local atomic structure of new nanostructured condensed material for for rechargeable current sources on the basis of 15mas.%V2O5/Fe/LiF nanocomposite within charge-discharge cycle on the basis of X-ray diffraction (XRD), X-ray absorption spectroscopy (XANES) and of computer simulation. The analysis of the experimental data obtained during the first charge cycle reveals the transformation of iron to more than 50% of iron fluoride (II) , Li ions intercalate into the structure of amorphous V2O5 forming LiVO2 compound.

Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

The algorithm of determination durability parameters, loading and resource by means of analytical transition from selective data to population data is considered. The analysis of the executed calculations for this algorithm showed that receiving parameters of likelihood distribution for set on one casual sample is the confidant.

Keywords: Strength, loading, resource, analytical method, sample, populations.

The method of definition distribution Fisher-Tippeta parametres of final volume population (Ас, Вс, Сс) under the selective data of the average stress is offered in the given work. Average values of parametres (Ас, Вс, Сс) thus is recommended to use at repeated modelling. Thus the Ас, Вс, Сс received is recommended to use average values of parametres at repeated modelling.

Keywords: the selective data, stress, Fisher-Tippet distribution, population, modeling.

The methods of evaluation of reconfigurable computing system is able to effectively function, which takes into account the structure of the problem-oriented calculators. The main mathematical tool used in the theory of discrete Markov processes and methods of game-theoretic optimization.

Keywords: reconfigurable computing system, Markov processes, methods of game-theoretic optimization, structure of task-oriented calculators

Combined method which allows analyzing parameters of the nanoscale atomic and electronic structure of materials relying on three different methods (x-ray absorption spectroscopy (XAFS), x-ray diffraction (XRD) and Raman spectroscopy) was developed. The method was applied for the study of nickel oxide nanoparticles, which serve as an efficient catalyst for the artificial photosynthesis process. 

Keywords: solar energy, artificial photosynthesis, NiO, Raman, x-ray diffraction, XAFS

We have carried out the analysis on the scientific and technological literature on methods of calculation and analysis of the x-ray diffraction, x-ray absorption and Raman spectra used to analyse the structure of the materials for hydrogen storage under realistic operating conditions. The simulations were carried out for the series of small palladium nanoclusters with embedded hydrogen. Multiscale computer modelling was used to simulate the dynamics of structure of the materials during charge/discharge phases.

Keywords: hydrogen storage, XANES, x-ray diffraction, Raman scattering, fuel cell

Project financing provides an efficient allocation of risks between key counterparties of project initiatives, which are best suited and have the most appropriate instruments to cover this risks. The study of structural and operational principles of project financing risk management instruments: contractual arrangements and associated guarantees (turnkey (engineering, procurement, and construction) agreement, contractual structures of the operating period: offtake / procurement agreements, operation and maintenance agreement), contingency funds, cash trap, risk compensation devices, derivative contracts and insurance – allowed to reveal specifics of their application and assess their implication for mitigation the project financing risks and for success of the project financing initiatives.

Keywords: project finance, risk management, project financing risks, turnkey (engineering, procurement, and construction) agreement, put-or-pay contract, take-or-pay contract, operations and maintenance agreement, debt service coverage ratio, cash trap

The influence magnetic field on treatment of electroplating wastewater and sludge has been investigated. The increase in efficiency of processing electroplating wastewater and sludge by using magnetic field has been noted.

Keywords: water treatment, electroplating wastewater, magnetic field, electrocoagulator

The mathematical model of storage reservoir has been deduced. The deposition rate of particles in reservoir has been calculated. It is concluded that storage reservoir is a preliminary sedimentation tank.

Keywords: storage reservoir, preliminary sedimentation tank, mathematical model, deposition rate

The algorithm of construction of reflections from the screens of complex shape. Geometric modeling based on the proposed algorithm makes it possible to conduct a rapid assessment of the distances between the fire building complex geometry, and between the process equipment, which is characterized by heat. Analytical dependences describing the process of building reflections, software algorithms and examples of calculations.

Keywords: geometric modeling, geometrical optics, geometrical acoustics, the laws of reflection