We consider the problem of pressing a conical indenter in pre-compressed radial force elastoplastic medium. The influence of the initial stresses on the parameters of the indentation.
Keywords: Diagnostics, resource efficiency, mechanical properties, strength, ductility, hardness, toughness, nondestructive testing, destructive
Knowledge of the kinetics heat irradiation give more sources for understanding physico-chemical process connected with solidification astringent. On curves of heat irradiation you can traced three stage and then read the kinetic equations describing each of them.
Keywords: kinetics, heat irradiation, speed, stages, astringent
Article is devoted to definition of the basic principles of modernization of regional reproduction – to search of preconditions of increase of effect from cluster development. Thus the main attention is given to the analysis of features of processes of a clustering in a branch cut at regional level. Expediency of definition of specific goals of regional economic policy on this basis locates.
Keywords: regional economy, gross regional product, factors of linear correlation, branch priorities
This paper presents a generalized framework level band pass filter used in the construction of broadband active RC filters. The conditions that determine the potential stability of the broadband link and its parameters. A variant of circuit implementation, in which low parametric sensitivity of Q to passive circuit elements is achieved on the basis of its own compensate small-signal parameters of bipolar transistors parameters amplification. The results of computer simulations have confirmed that the principle of self compensate coupling semiconductor can significantly reduce the sensitivity of the parametric parts of the second-order band-pass filters based on existing low technologies.
Keywords: system-on-chip, band pass filter, quality, current amplifier, the sensitivity, bipolar transistor
The approximate formulas for determination of planar electromechanical force factor and piezomodule in the disk-form samples without Poisson coefficient evaluation of the smallest (first) frequency equation root are derived. It simplifies procedure of measurements because measurement of frequency of the first overtone isn't required.
Keywords: piezomaterial, disk, planar electromechanical force factor, piezomodule, Poisson coefficient
The article discusses the features of a method of the spaced stop lines for the organization of the buses priority. Results of imitating modeling define boundary conditions of its use in modern conditions.
Keywords: the organization of the buses priority, priority lane, stop line, signal control
The paper discusses the features of their own circuits and mutual compensation circuitry in a differential stage in CMOS transistors. It is shown that their composition can significantly increase the differential gain in symmetric cascades with a dynamic load, significantly reduce common mode gain and extend the range of operating frequencies. As an example, the evolution of the basic concept of a symmetric stage and the results of its simulation in Cadence Virtuoso.
Keywords: micro circuitry, structural synthesis, complex-function blocks, a differential stage, a CMOS transistor, system-on-chip
In article the technique of optimization of placement of waste reloading stations, allowing to define both location, and number of stations that allows to reduce both operational and capital expenditure for the organization and functioning of system of the address with a waste is offered.
Keywords: technological process of transportation, a solid municipal waste, critical distance
The paper presents an analysis of the data obtained as a result of questioning students RGSU in late 2011. The purpose of this study is to measure the level of political tension among the youth after the events of December 2011. 168 young people taken part in this research (men - 53% women - 47%). Age of the respondents - 17 to 19 years. The questionnaire included a subjective assessment of the following levels: participation in the political process, emotional involvement in these processes; comments of these processes, and economic prosperity, social security, life prospects. Revealed a low level of involvement of young people to the political process - 1.40 on average value. The level of emotional involvement in the political process - 2.15. The stable level of comments political processes in the family - 2.17. Received, the average level of economic prosperity and level of social security of students: 2.44 and 2.24. Assessment of life prospects is at a high level - 3.03. It is revealed, values of average all studied parameters at women are higher, than at men. Least a difference in an assessment of level of participation in political processes – 0,1. More differs the assessment of level of social security, the difference makes – 0,69. Thus, level of a relative deprivation among studied audience is low, and if will tension arise in student's group, first of all among men.
Keywords: a political tension, deprivation, group installation in relation to a political order, cognitive component, questionnaire, the descriptive statistics
This paper presents a method for calculating the spread for the generalized (B, S)-market in case of buying up shares. A brief description of the relevance of tasks, related to the calculation of market value of derivative of assets and concomitant calculations. Substantiate the use of Martingale ideology in studies of financial markets. Describes the essence of the generalized model (B, S)-market in case of buying up shares, as well as the principle of calculating of upper and lower value of the option-call European type.
Keywords: financial market, option, spread, model completeness, arbitration, financial strategy, the model of Cox-Ross-Rubinstein, financial liability, the martingale
Main areas of modern human life and society (education, work, leisure) require the application of complex human ¬ lovecheskih forces and capabilities - physical, psychological, emotional ¬ tional, intellectual, and spiritual. Difficult transition to a market economy in 90 years, affected the fitness and sports motion, ¬. Socio-economic factors and conditions were the prerequisite for the formation of unhealthy motivations some part of students and the students, and this has a negative impact on their health and physical fitness.
Keywords: Education, training, rehabilitation, and social disease caused by the problem of professional personnel, college environment, culture, science, intellectual work and the result of labor
Compressive strength of harden cement paste modified with white soot metakaolin and different superplasticizers ranged from 69 to 182% in comparison with non modified specimen. The elastic modulus ranged from 89 to 137% in comparison with non modified specimenand the measure of creep from 36 to 542%.
Keywords: portland cement, white soon, metakaolin, superplasticizers, compressive strength, E-modulus, creep coefficient
Considered the actual issues for nuclear power plants related to ensuring the normal operation of a running part of radial operation bridge cranes
Keywords: Bridge cranes; geometrical theory of motion; lateral deviation of wheels
Theoretical model of anomalous electron emission has built for an soft x-ray irradiation of surface elektrets, explaining the different character of correlation between energy and emission intensity of ferroelectric solid solution PbTiO3 - CaTiO3 and nonferroelectric ceramics CaTiO3. Shown that due electret surface irradiation the Schottky area is depleted by nonequilibrium charge carriers.
Keywords: Emission, electret, ferroelectricity, Schottky area
Consider the problem the interaction of conical punch with soil base. A scheme of partition the study area into finite elements, The formulation problem, boundary conditions, allowing the equation. Presents some results the calculations.
Keywords: conical punch, foundation, base, axisymmetric problem, stress, displacement.