The author of the article identified the cadastral value of land horticultural non-profit organizations of Leningrad region, using the method of geostatistics. Determined by the maximum distance between objects evaluation. Point at a distance lag more than the maximum distance, not spatially correlated. The construction of the cadastral value of the surface, using deterministic methods and methods of geostatistics is illustrated.

Keywords: cadastral value, geostatistics, log, correlation, regression

This paper addresses the testing results of steel rods with grade A500 and A600, which used as a conventional reinforcement. It was investigated the strength properties of carbon and fiberglass sheets with different number of material layers. The results are compared with the data given in the quality certificates.

Keywords: fiberglass, carbon frp sheets, laminates, sheets of carbon and fiberglass, the ultimate load ,strength

The questions related to the study of various varying factors on the strength of normal sections in beams. Here's a program of research by one methodology designed to study the effect of the type and content of steel reinforcement and externally composite on the strength of normal sections that have not previously been investigated.

Keywords: Concrete, reinforced concrete, the percentage of reinforcement, carbon frp sheets, fiberglass, laminates

Some information was provided about the influence of type and percent of steel and composite reinforcement, on the strength and deformability in strengthened reinforced concrete beams. It was found, that the increment degree of strength in beams decreases by the increasing in percentage of steel reinforcement, especially, when a carbon fiber plastics with hot and cold hardening was used.

Keywords: Concrete, reinforced concrete, steel, composite, the reinforcement rate, the efficiency of strengthening , the varied factors, strength, limit strength, maximum allowable deflection, deformation.

An analysis for the influence, of type and quantity of steel and composite reinforcement, on the normal cracks development, at different load levels, and by the maximum allowable deflection in beams. It was Found that throughout the load range, the reference beams are most cracked. The reduction degree in crack width depends on the strength and percentage of the steel reinforcement.

Keywords: concrete, reinforced concrete, steel, fiberglass, carbon fiber, laminate, maximum allowable crack width, load level, the development of cracks, the relative width

It was provided some information about the character of crack formation and failure of prototypes, which strengthened by three deferent type of composite materials. It was fixed some increased in the crack’s number in beams which reinforced with glass fiber canvas, and 6 deferent mode of failure in strengthened beams.

Keywords: concrete, steel, anchor, composite materials, prototypes, failure modes, load level

Some information was provided about the experimental values ​​of crack width in reinforced concrete beams, which strengthened by three deferent types of glass and carbon fiber reinforced plastics. It was found that, when the strength and modulus of composite are increased, to the width in normal cracks is reduced. Having U-shaped clamps, anchors at the ends of the composite caused a greater reducing in their development. These factors should be considered in theoretical matters.

Keywords: Concrete, reinforced concrete, the reference beams, prototypes, cracks, crack width, the level of the composite reinforcement

An information, is given about the method of strengthening the tested samples by the general requirements of plant’s manufacturer for three types of composite materials. It was presented a dates about the application stages and control of the load intensity  

Keywords: Concrete, cement grout, notching, primer, putty, glue composition, stages of loading, the load level indicator, graduation

Provides information about the strength of the concrete, the size of the cross section of experienced beams, the options of their reinforcing and strengthening with various types of composite materials. Provides a scheme of testing with short-term load  

Keywords: Steel, concrete, reinforced concrete, strengthening, anchors, span , percentage of steel and composite reinforcement, load, failure

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 spectra of thermally stimulated conduction currents (TSCC) in (TmBi)3(FeGa)5O12:Ca2+ ferrite-garnet films have been investigated with the purpose to reveal electrically active centres. The samples were fabricated by liquid phase epitaxy (LPE) from melt solution on the Gd3Ga5O12substrates with the crystallographic orientation (111) with the use of Bi-containing flux (without Pb). Increasing the concentration of Ca2+ions in the films were realised by increasing the concentration of CaO in the melt solution. The obtained films contained Ca2+ ions from 0,03 f.u to 0,1 f.u. With the help of standard thermoactivation current spectroscopy the spectra of the initial samples and samples subjected to ultraviolet radiation and negative corona discharge were obtained. The characteristic parameters of electrically active defects were calculated.

Keywords: thermally induced electrical current, ferrite garnet films, electrically active centres, deep-level capture, charge compensation, Ca- doping, ТСТП-spectra, temperature position

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

Work is devoted mathematical modelling of processes in the channel of the MHD-device with the conical axisymmetric form of a channel. The assumptions accepted at modelling are formulated. The mathematical description of a prototype system with usage of known laws of electrodynamics is conducted. The equations of components of density of current, a magnetic field and electromagnetic forces in the conical part of the channel of the observed device are defined. Adequacy of the developed model is confirm by results of computer simulation of processes in the channel of the device. Deductions about applicability of results of the given work are presented.

Keywords: MHD-device, conical axisymmetric channel, density of current in the channel, mathematical model, electromagnetic forces

In modern conditions of managing the actual task is to study and substantiation of new forms and methods of realization of social policy, the relevant objective laws of market economy, as well as the identification of priority directions of social policy. Describes the concepts of social policy and social institutions, highlighted the priorities of the social policy. The article considers the quantitative indicators, which determine the effectiveness of the institutional environment, which is implemented by the social policy. 

Keywords: Social policies, institutions, priority directions of social policy, quantitative indicators of social policy realization