Represented in the block diagram of the election based amplifier and current amplifier input converter "voltage-current" allows you to control the central processing element pole frequency and quality factor, as in diagnostic mode parameters of analog devices, and in the mode signal processing. A variant of its circuitry implementation bipolar transistors for microelectronic performance. The results of computer simulation in Agilent ADS confirmed that on the basis of simple current amplifier in the traditional process, due to the structural features of the active elements of ongoing basic level of order can be implemented relatively high-Q units of the second order, which are easily integrated into multi-tier band filters.
Keywords: system-on-chip, band pass filter, quality, current amplifier, the sensitivity, measurement error
Article is devoted to justification of approaches to development of algorithm of an assessment of influence of railway transport on a state of environment for ensuring ekologo-economic safety of the country. Offers on use what econometrical modeling for development of imitating model of system of environmental management for the purpose of damage prevention to environment from impact on it anthropogenous factors of the enterprises-prirodopolzovateley, including emergency situations are proved. Stages of realization of a technique of an ekologo-economic justification of nature protection administrative decisions in environmental management system on railway transport are considered.
Keywords: railway transport, influence, assessment, ekologo-economic safety, environment, administrative nature protection
The articlereviews the methodical bases of diagnostics socially-personal of diagnostics socially-personal competenceof students on the basis of Rush's one-parametrical dichotomizing model which possibility of use is proved. The results obtained on the basis of questioning by test-questionnaire L.P. Kalininsky. Calculated personal parameters of participants in the questionnaire, defining presence competencies.
Keywords: model Rash, competence, competence level, latent variable, the test-questionnaire, the characteristics of student
The problem of a radial compressive stress in the sample to assess their impact on the parameters of these stresses pressing indentors
Keywords: Diagnostics, resource efficiency, mechanical properties, strength, ductility, hardness, toughness, nondestructive testing, destructive
The paper offers a solution to the general problem of circuit synthesis for n-MOS transistor level band pass filter based on current amplifier with a limited transmission coefficient. The possibility of optimal choice of the parametric compromise. The results of modeling circuit in Cadence Virtuoso environment component-based workflow SGB25VD.
Keywords: CMOS transistor, a band pass filter, a selective amplifier, system on chip, gain, voltage-to-current
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
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
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
This scientific report is devoted to the solution of an optimization model of the complex energy efficient measurements’ choice problem, making use in the housing construction, on the bases of developed algorithm. The optimization algorithm was devised taking into account of the energy efficient technologies detailed classification including its cost and energy savings. In the article is offered a simplified formula of economic effect calculation for different energy efficient technologies. It introduces an application of optimization model of the complex energy efficient measurements’ choice by example of heat-insulating materials and the results of economic cost-effectiveness analysis of its using.
Keywords: energy saving, energy efficiency, energy efficient technologies’ classification, optimization of energy efficient measurements’ choice, ecological, heat consumption, economic cost-effectiveness
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
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
Apartment buildings as a form of mass building cities appeared in the last quarter of the 19th century. The construction of buildings is simpler designs compared to those adopted in the present. They were replaced by buildings constructed in the style of constructivism. They were basically three - five-story, brick. Houses were calculated on a large number of residents, and consisted of a large number of separate sections, often rectangular (or close to it) in terms of form. The buildings were first introduced structural innovations in the form of core hardness (staircases), hard carrying and enclosing envelope (exterior bearing walls), post-and-beam system, vertical communication corridors, lightweight partitions.
Keywords: restoration, repair,reconstruction, restoration, method
Post-war reconstruction of the city of Rostov-on-Don to be divided in to two stages from 14 February 1943. to 1946 and from 1946 to 1956., restore to different choices and features of design and construction. Up to 1946. rehabilitation works are mainly ofthe nature of small repairs of small houses and decoration of apartments. To restor elarge objects started at the end of 1946. A commission was established to restore,which was engaged in the survey of destroyed buildings and made decision sab out the method of recovery. Methods: repair, reconstruction with elements of restoration and reconstruction. Among design organizations involved in the restoration of Rostov special place"Gorproekt."
Keywords: restoration, repair, reconstruction, restoration, method
The article describes methods allows to control the degree of anisotropy piezoelectric ceramics based on doped phase PbTiO3. As a model of the object has been selected phase of Pb0,76Ca0,24Ti0,94(Cd0,5W0,5)0,06O3. The model phase was obtained by the following methods: by solid state reaction method and the chemical construction. For comparison phases obtained by these methods were used modern analytical research methods (DTA, TGA, XRF, XRD, power and tunneling microscopy, computer-program research results). Piezoceramic samples were obtained from the synthesized phases and electrical parameters were measured. Were revealed that the samples, obtained from the charge, synthesized by chemical construction had values of piezoelectric constants d31 and d33 much more than samples obtained by the method of solid state reaction.
Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems.
Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems