The features of circuit engineering and results of chip computer simulation which consists of 4-channel operational amplifier (op amp) and 2-channel electrometric voltage follower, designed for pre-processing of sensors signals in high-energy physics are considered. 
The characteristic properties of designed op amp are the absence of current source in the input differential stage and the use of parallel high-frequency channel for increasing of the bandwidth and slew rate.
The results of experimental research that have confirmed the low sensitivity of the parameters of designed integrated circuits created on the field programmable gate array "FGPA-1.3" without the horizontal p-n-p transistors to the influence of gamma-irradiation and electrons with energy of 4 MeV are given.  

Keywords: operational amplifier, field programmable gate array, voltage follower, sensor, sensing element, radiation resistance.

Circuit features of the electronics module for avalanche photodiode signal read-out, created on a basis of the specialized analog IC, are considered. Measurement re-sults of characteristics and noise depending on signal source capacity are given.

Keywords: avalanche photo diode, readout electronic, charge sensitive amplifier, shaper, electronics module

Determined the relationship of the provision of public соцальных services, the system of state administration and administrative reform. Is an advanced version of the stages of administrative reform, with the purpose of revealing in her place and role of public social services. The analysis of the stages shown that it was decided to many of the tasks set in the field of improvement of the provision of public social services, but still enough problems still remain unresolved. The authors have identified problems in this sphere of scientific interest.

Keywords: state social service, the system of state management, administrative reform, the problem of providing public services

Article is devoted to development and use of three classes of the interactive electronic technical managements for household refrigerating appliances. In article, the material in which recommendations about use of the interactive electronic technical managements, as interactive means of ensuring of operational efficiency of household refrigerating appliances are made, at carrying out repair or diagnostic work is prepared.

Keywords: efficiency assessment, operational efficiency, household refrigerating appliance, interactive electronic technical managements

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

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

Engineering networks in the Rostov region are strongly worn-out. The main objective of a solution is construction, reconstruction or modernization of engineering networks of the Rostov region. Association of efforts of spheres of housing and communal services and telecommunication systems, will allow to solve a number of the main objectives of a considered problem. For this purpose it is necessary to prepare a complex of the organizational and technological actions which have been directly connected with works on joint laying of engineering networks and telecommunication systems.

Keywords: Organization, Decision, Joint laying, Construction, Reconstruction

The results of the creation of a controlling subsystem as part of the system of strategic management of the transport and road complex (TRC) development are given. Structural
And process controlling subsystem components for different hierarchical levels of strategic management and state policy in the sphere of TRC development are defined.

Keywords: strategic management, state policy, road and transport complex, controlling

Studied in article the question of decrease in electro resistance of inserts of trolleybuses, a design of a contact insert of slip rings of trolleybuses and a composite material for its manufacturing is investigated.

Keywords: Impregnation, carbon-graphite, an insert.

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The construction of a two-dimensional tiling by a specific projection of three-dimensional cubic lattice is considered. Different a periodic tiling’s, consisting of equal rhombi, are obtained by different choice of the projection region. They are ordinary a periodic tiling, having local elements of symmetry group С6v and chiral trigonal stacking, built like chiral pentagonal Penrose’s quasilattice [1], which occurs in virus cap sides.

Keywords: Quasicrystal, quasilattice, two-dimensionalquasicrystal, chiral quasicrystal.

Is calculated the mean distance between the diamond grains on grinding wheels by their characteristics. Is carried out of the duration, frequency and form of discharge impulses in electro erosion profiling of diamond grinding wheels.

Keywords: electro erosion profiling, correction, the distance between the diamond grains, frequency of discharge impulses, the duration of discharge impulses.

In this paper, the task of achieving the optimal bandwidth telecommunication channels. Focuses on technical aspects of managing bandwidth channels using virtual organization switched channels. Formally defined parameters affecting the guaranteed delivery service. A model and management solution parameters guaranteed delivery of information in the communication channels, based on the methods of the theory of stochastic processes theory and risk analysis.
Keywords: reliability of telecommunication systems, telecommunication systems modeling, stochastic processes, optimal risk management.

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    The structural model of functional mechanisms with stressed closed-loop contour which is used in the mechatronic systems is offered in this article. The problems of loading mechanisms forming are analyzed here. The work of self-regulating loading device is considered on the example of cutting mechanisms. The results of experimental investigations are represented.

Keywords: closed-loop contour, energy saving, reducing machines, loading mechanisms.

Carried out a comprehensive analysis of the factors governing the strength and resilience foams, for the manufacture of foam concrete mixes. Found that lowering the temperature of mixing water helps to improve the structural properties of the foams. 
Keywords: surfactants, foam, lyotropic liquid crystals.

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