The paper deals with review of main methods of compound details irregular optimal packing on sheet material problem solving. Existing methods and approaches to solve compound details irregular optimal packing on sheet material problem were descibed. The classification of such methods and approaches was proposed. The most perspective approaches to solve irregular packing problem were identified

Keywords: cutting-packing, irregular shaped cutting, classification, methods, approaches, complex form

The article describes the experience of the unique complex of works to improve the operational reliability of the emergency office buildings located in a cramped building, whose main task was to eliminate excessive rolls with hydraulic jacks and ensure the continued trouble-free operation. Highlighted the key features of the design and technology solutions for the simultaneous lifting and leveling of several buildings with different design decisions.

Keywords: adjustable foundation, electro-hydraulic flat jacks, cramped building, lifting and leveling, operational reliability.

The possibility of channeling X-ray fluorescence inside the hollow microvascular at the energy of the exciting radiation in the vicinity SiL2, 3 - absorption edge has been researched. Theoretically obtained the angular distribution of the field passing through the microchannels. The calculation model of inhomogeneous waveguide layer with the generation of X-ray fluorescence inside the walls of the microchannels shows the possibility of escape of radiation at large angles.

Keywords: channeling of X-ray fluorescence, microchannel plates, focusing of X-ray radiation

Сollector mm-wave load circuit of differential stages, as well as the optimization of Q-factor are considered. Optimization of the form of microstrip line in order to increase quality factor is shown. Differential line shorted at one end, at the resonant frequency in the operating mode of the standing wave. At the shorted end of the line voltage is at minimum level, while the current at the maximum, so losses are mainly due to the series resistance of the microstrip line. On the other side of the line, the current is minimized, and the voltage - maximum, so the parasitic losses associated with shunt conductance between the differential lines. This effect use for reducing line losses and increasing the Q-factor. To this end, at the shorted end of the line is necessary to increase the line width and the gap between them, and at the other end to reduce the width and gap.

Keywords: resonant circuit, SiGe, mm-wave, BiCMOS, monolithic integrated circuit

In a classical ferroelectric material the real condition of the crystals, caused different type defects, leads to insignificant effects of degradation. In systems of firm solutions and difficult oxides эфти effects are the integral physical properties. The features of degradation of phase transitions are available and in a ferroelectric material-relaksorakh.

Keywords: Phase transitions, ferroelectric material, perovskites, difficult oxides, ferroelectric material-relaksory

In a ferroelectric material of difficult structure with structure of a perovskite it isn't observed accurate phase transition. In this a ferroelectric material relaxation nature of dielectric polarization in the field of phase transition is observed.

Keywords: Phase transitions, ferroelectric material, perovskites, difficult oxides, ferroelectric material-relaksory

This work deals with the study of atomic and electronic structure of kaolinite samples (Glukhovtsy deposit) and montmorillonite (Millerovsky deposit) by density functional theory. The applicability of existing exchange-correlation potential in the local density approximation (LDA) and the generalized gradient approximation (GGA) is analised for an adequate description of the physical properties of layered aluminosilicate. An experimental and theoretical study of the IR spectra of minerals, as well as the identification of the most intense absorption bands, performed in the approximation of DFT using the exchange-correlation potential PW91. The analysis of the band structure of these minerals, which showed that these compounds are direct-gap insulators.

Keywords: DFT, clay, clay minerals, phyllosilicates, atomic and electronic structure, crystalline systems, IR spectrum band strukutra, the electron density

Is devoted to the actual problem of constructing classifiers objects given by a point in a multidimensional space of feature values. The principle of linear normal classification of objects in multi-dimensional space of attributes can be used to build a classifier in the case of many complex structures, in general, are inseparable one hyperplane. In such cases, proposed to use a set of hierarchically related normal separating hyperplanes, which is called the normal hierarchical classifier.

Keywords: recognition, classification, feature space, the geometric method

Promising absorbing materials along with a Ni-Zn-ferrites are Mg-Zn-ferrites, as they are also intensively absorbs electromagnetic waves in the frequency range from 50 MHz to 1000 MHz. The main advantage of the Mg-Zn-ferrite is used as an inexpensive raw material magnesium oxide. The paper presents the results of research to improve the efficiency of broadband radio-magnesium-zinc ferrite by increasing the contribution of the dielectric loss. The influence of alloying elements of the atmosphere gas and cooling after the sintering thermal radiation by absorption of electromagnetic waves. Confirmed cooling efficiency of products after sintering in an atmosphere with reduced oxygen partial pressure to increase the dielectric constant. A model is proposed to explain the increase in the dielectric loss ferrite during cooling in a reducing atmosphere.

Keywords: radioabsorbing ferrites, microstructure grain boundaries radio measurement radiation thermal sintering

This article provides an account tsentrenno and eccentrically compressed reinforced concrete columns of high-strength concrete on the deformed pattern in SP 63.13330.2012. Compares the results of the calculation of the bearing capacity of the columns with the set experimental data. Proposed adjustments in the form of the coefficients in the formulas for the curvature tsentrenno compressed columns j and eccentrically compressed yb.

Keywords: high-strength concrete, physical experiment, prism strength, lateral reinforcement, concrete counters, deformation correction factor

The influence of the amount of the addition асфальтогранулята on the properties of asphalt mixes and asphalt. Also considered is the impact of technology of filing асфальтогранулята on physical-mechanical properties of asphalt mixes.

Keywords: old asphalt, asphalt, astringent, physico-mechanical properties, homogeneity.

This paper studies the dependence of the ratio of prismatic strength (Rb) from cube strength (R) for high-strength concrete of classes B70 ... B110. Experiments were carried on the concrete cubes with an edge of 150 mm and prisms with a base 150x150 mm and a height 600 mm. The tendency to reduce the ratio Rb / R with increasing strength of the concrete is founded. A new relationship Rb = f (R) is offered

Keywords: high-strength concrete, physical experiment, prismatic strength, cube strength, the coefficient of the prismatic strength

The paper proposes a new relationship for the analytical description of the diagram «b–b» for high-strength concrete of classes C55/67 ... C90/105. The formula developed on the basis of the accepted in EU relation of Sargin and agrees well with the experimental data. A new relation of the ultimate relative deformation of concrete from the strength is developed

Keywords: high-strength concrete, physical experiment, state diagram of concrete, the stress-strain dependence in concrete, the ultimate relative deformation of concrete

In our country creation of country housing real estate was slowed down due to the lack of necessary infrastructure, and also high level of cost at its creation. The main factor promoting development of mass low housing, existence of the corresponding infrastructure and necessary communications, and also in certain cases objects of social infrastructure is.
  It is impossible to forget and the problems arising by consideration of potential of development of low housing: infrastructure dilapidation; small number of free land fund; complexity of preparation of infrastructure of the territory; difficulties in search of financial resources; small susceptibility of branch to innovative processes.
  The scientific logistic model of the organization of the mass low housing construction, considering creation of necessary objects of infrastructure for building is offered. Now need of strategically planned coordination of business and the state is the only way to the solution of infrastructure and other tasks connected with development of low housing construction from developers and builders.

Keywords: housing, innovations, infrastructure, low, model

In recent years reconstruction of buildings and constructions became one of the main directions in the field of construction. Considering that at reconstruction capital investments it is significantly less, and payback is higher, than at new construction, the share of capital investments in reconstruction will increase.
It is necessary to apply intensive methods of repair and reconstruction of buildings and constructions as one-time costs of reconstruction and repair there are less than one-time costs of new construction in construction production. Considering a significant amount of the factors significantly influencing the organization of construction at reconstruction of buildings and constructions, previously before development of organizational and technological documentation it is necessary to prepare the list of the data necessary for the organization of construction works and to make their analysis which concerns the analysis of projects and the territory of a building site, including situational plans.

Keywords: reconstruction, specifics of the organization, factors, systematization, analysis, feasibility study