"This article is devoted to the development of the method for modeling elements of microsystems technology(MST) of membrane type. In this paper perforated membranes are considered and the impact of perforation on the mechanical properties of the membranes is examined. In numerical simulations of the elements it is proposed to use the equivalent mechanical parameters of perforated membranes obtained at the initial stage of the simulation. This will allow to obtain find the optimal parameters of perforation, reduce the time and resource modeling of MST elements. To test the technique numerical experiments were conducted for the two square membranes with sides 1.5 and 3 mm fixed on the contour of the same thickness. We studied the influence of the size of the perforation on the equivalent Young's modulus of the perforated membrane. "

Keywords: microsystems technology, numerical modeling, perforated membrane

In article the way of definition of a technical condition of the household refrigerating device providing its simplification, raising reliability and autonomy of process of an estimation of its technical condition is presented .

Keywords: The household refrigerating device, a technical condition, an estimation

Alzheimer's disease is an incurable illness. It affects about half a million people in Russia, and due to the general trend towards aging of the population the number of Alzheimer's disease cases will steadily increase. Insoluble deposits of amyloid beta in the brain tissue (amyloid plaques) are the major morphological characteristic of Alzheimer's disease. It has been found that the increased concentration of copper in amyloid plaques results in copper ions bound to the protein. It is the presence of copper in the binding site triggers of the formation of amyloid plaques. Therefore, the study of the binding site in amyloid beta is of great scientific interest. The local atomic structure of the Cu(I) copper ion binding site in the amyloid beta peptide has been studied by means of XANES spectroscopy. Several model structures obtained by molecular mechanics and density functional theory (ADF code) have been tested. Theoretical analysis of X-ray absorption spectra based on the finite difference method implemented in FDMNES code was performed. An appropriate model structure of the Cu(I) copper ion binding site in amyloid beta peptide has been found.

Keywords: amyloid beta, binding site, Alzheimer's disease, the method of finite differences, Cu(I)

The problem of manufacturing technology heterostructures pezofaza - metal considered in the article. Complexity consists in the fact that during the removal of the polymer in the system at low temperatures are formed porous layers, formed powders separated metal layers, having island macrostructure. One way to solve the problem - reducing the firing temperature heterostructures. Proposed to decrease the sintering temperature by using of functionally active glass-phases. Reducing the sintering temperature of products also allows to replace platinum electrodes inexpensive silver-based alloys. Obtained by solid state reaction method of piezoceramic material has a low sintering temperature (980 ° C) and high electrical parameters. Found that not only the proportion of the vitreous mass, but also their qualitative influence on the properties of piezomaterials    

Keywords: heterostructure glass phase, the sintering temperature, porosity, ferroelectric phase

The representation of solutions for problem of steady state vibrations of multilayered poroelastic half plane is considered using the superposition of corresponding solutions for homogeneous poroelastic environments. This allows to analyze the influence of individual structural layers on the forming of displacement and stress fields and also give the analysis of energy streams with the refraction boundaries and wave types separation

Keywords: multilayered half space, steady state vibrations, Biot environment, superposition principle

In the article the types of the tubes, used for transportation of hydrocarbon resources on oil and gas fields of West Siberia are considered. the analysis of the statistical data and materials on the corrosion protection in the West-Siberian region is also provided in the article. moreover, the most optimal and effective ways of corrosion protection using the tubes of high corrosion resistance are introduced in the article.

Keywords: hostile environment, incident, corrosion, alloy steel, reliability, refusal, pipeline

Provides a method of representation of the scheme of control and evaluation of concrete strength at the factory. The method does not require detailed text-th maintenance, differs with visibility and convenient for workers of the construction laboratories.

Keywords: Сontrol of the selling of concrete strength, the party of commodity concrete mixture, the party of the precast concrete and reinforced concrete, the required concrete strength

There is two type of phosphate minerals for phosphate basic materials. Features of the apatite and the phosphorite deposits are given consideration. It is marked, that stacking process is forming from two sorts of phosphogypsum: dehydrate and semi-hydrate calcium sulphite. The results of studying the phosphogypsums' physical-mechanical properties are given. Specific structurial-mechanical, strength and strain conditions are considered.

Keywords: apatite deposits, phosporite deposits, extraction method, dehydrate and semi-hydrate phosphogypsum, dumps, geotechnical properties

We propose a method for cooling the condenser compression refrigerator, including the use of melt water wetting the surface of the water condenser. The water is directed into the groove in the middle part of which is the tube condenser coil, and the water flows by gravity to the tribes of the inclined groove, wetting the surface of the trough and tube condenser. Remains of meltwater routed to the tank on the compressor.

Keywords: Household refrigerating appliances, water, cooling, condenser, reducing energy consumption

The device for uninterrupted measurement of shaft wearing out by stuffing tightening is offered. The device for investigating sealing tightenings is worked out. Opticoelectronic systems are used for increasing the accuracy of measuring and for the purpose of uninterrupted monitoring in the construction of both devices.

Keywords: tribomonitoring, machines and mechanisms, optoelectronics, wear, seals

One of factors of success in conditions of the market relations are questions of increase of competitiveness that is especially actual for the Russian economy. In turn, Russia, possessing huge natural resources, considerable research and production and personnel potential, has low indicators on quality of life, effective use of resources and competitiveness. The analysis of existing definitions of the category "competitiveness" is provided in article, the hierarchy of levels of competitiveness is presented, the factors influencing competitiveness of construction branch are considered, the algorithm of determination of competitiveness of a construction complex of railway transport is considered.

Keywords: Competitiveness, construction complex of railway transport, competitiveness factors, assessment rating, competitors

  Bbiomechanical parameters of the competitive exercise «bench» during the All-Russian competitions (Cup of Russia, Sochi 2011) were revealed in powerlifting athletes of various qualifications with motor disorder. Comparative analysis showed that there are significant differences between athletes of high, medium and low skills.

Keywords: Powerlifting, sports techniques, sportsmen of different qualifications with motor disorder

This article represents results of researches of efficiency of plants in the winter of wheat at introduction of different types of fertilizers, their combinations, dosages on the main backgrounds of the Priazovsky zone Rostov to acquire – winter wheat, sunflower and peas. 

Keywords: Winter wheat, peas, sunflower, KAS, ammoniac saltpeter, carbamide, ZhKU, productivity, quality

  Modelling results of technical state of long-operated bridge crossings across conveyance structures are given in the article. As a result of the experiment a solid-state model for bearing element of a bridge crossing across conveyance canals was constructed. The stress-strain state of ferroconcrete bearing elements under various load combinations is considered. As a result of numerical experiments carried out zones of forming defects and damages on bearing elements of bridge crossings across conveyance canals were marked out. These zones may have characteristic damages of the same type that makes it possible to regulate the process of laying georadar sounding profiles and defining points in which it is necessary to measure concrete strength when conducting inspections on location. In this connection modeling defects on a column by way of formation voids and ferroconcrete unseals with diameters from 50 mm to 100 mm was carried out. Intensive danger threshold for forming voids and ferroconcrete unseals beginning from 100 mm diameter was fixed.

Keywords: hydraulic structures, conveyance structures, bridge crossings, operation monitoring, modeling, technical state, solid-state model, danger threshold, voids, unseals

Software and hardware solution for the operational monitoring of the technical state of water conveyance structures designed to determine the various parameters of defects and damages, as well as of the forecast period the residual life of their members. It can be used to estimate the geometric parameters of each defect, namely - the location, depth, width, height, and operational evaluation of residual life - namely, predicting the total number of cycles of freezing and thawing, as the last for the period of operation, and the remaining to loss of bearing capacity of concrete elements water conveyance structures, and complex influence of several factors on the reliability of the plant and the most characteristic of them is abrasion, leaching processes and the degree of wear on sites with different hydraulic characteristics. Software and hardware solution can be equipped with various combinations of frames, copies the form of water conveyance structures.

Keywords: the hydraulic engineering constructions which are water carrying out channels, nondestructive control methods, a residual resource, modeling, and a technical condition