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  • Microwave band-pass filter on waveguides of complex cross-section, integrated into a multilayered chip with SIW technology

    The possibilities of waveguide elements realization in the structure of multilayered integrated chips of centimeter and millimeter ranges with SIW (Substrate Integrated Waveguide)-technology application are considered. The approaches allowing effectively using in new structures the algorithms and techniques of the electrodynamic analysis and synthesis of passive devices on classical all-metal waveguides are offered. Advantages of use in SIW structure the waveguides of complex cross-section are considered on the example of the microwave band-pass filter.

    Keywords: A.A. Gadzieva, V.V. Zemlyakov, S.V. Krutiev

  • Problems of designing a new school complex for 1,400 students in a residential area "Leventsovsky" the city of Rostov-on-Don

    This article discusses the design of complete large- schools, school building maintenance problems complexes contradictions relevant requirements of normative documents . Analyzes the space-planning decisions , tsvetofakturnye using modern environmentally friendly and durable materials and technologies in the finish, including vandal-proof coating. Designers have been carefully studied dedicated land for future construction of a school complex with a view to the most rational "landing" of the school building , to provide the necessary sanitary requirements , insolation and aeration territory , reliable solution that reduces the cost of running the building.

    Keywords: design, stroiteotstvo, space-planning decisions, decoration, interior

  • The analysis and classification of methods of identification of production noise in building industry

    In article efficiency and accuracy медов measurements of noise characteristics of the equipment and cars are considered.

    Keywords: The risk, injuring factors, labour safety

  • Raman spectra on three phase transitions of perchlorate of natrium

    The analysis of temperature dependence of frequencies of lines  is conducted active in the spectrums of combination dispersion of  perchlorate of natrium. The theory analysis of spectrums is conducted.

    Keywords: Perchlorat of natrium, anion, spectrums of combination dispersion, phase change

  • Flexible piezocomposites with mixed connectivity phases in the system

      Laboratory technology was developed to fabricate flexible piezocomposites with ferroelectric phase - polymers having signal reception factorv • gv 5000 • 10-15 m2 / N. The values of the given coefficient were achieved by switching from a probabilistic (spontaneous) percolation to a correlated one in the process of forming material. This made the production of 0-1–3 piezocomposites, in which a part of piezophase has 0 connectivity, and the other part – 1 connectivity possible. To improve the efficiency of piezocomposite polarization before their manufacturing the surface of piezophase particles, which were obtained by the partial destruction of the porous frameworks, was treated with coupling agent, which did not only improve the polymer adhesion to piezophase, but also allowed the removal of water from the particle surface. The latter effect reduced the value of interfacial conductivity, i.e. prevented the voltage drop of the polarizing field. Matching of polymer conductivity and piezoceramic particles by determining the optimal polarization temperature was carried out as well.  

    Keywords: piezocomposites, percolation, connectivity, electrophysical properties

  • Dynamics of affective political attitudes of students RSSU (first half 2013)

    At the end of 2012 – the middle of 2013 pilot questioning among RGSU students was carried out. In total more than 330 students of the first and second courses were interrogated. The work purpose – measurement of dynamics of an emotional component of group installations in relation to a political order. The emotional component of group political installation was measured on technology of semantic differential. It was offered to estimate to respondents on 20 bimodal scales four types political about. Two ideal – ideally positive and ideally negative orders. And two real – local and central. In the linear approximation calculated levels of emotional perception of the political order in the vicinity of the averaged image of the real image of the ideal order to constructs used in the space of features. Perception of an order at the end of 2012 in Region: -0,21892, in Russia: -0,24154 . To the middle of 2013 level of perception decreased: in Region: -0,59429, in Russia: -0,43879 . For the considered period level of a relative deprivation also was analysed: in 2012 level is equal 0,523 and in 2013 made 0,555. Thus, to the middle of 2013 there is a small increase in level of a deprivation that correlates with deterioration of perception of a political order among youth.

    Keywords: political order, semantic differential, factor analysis, the emotional component, questioning, relative deprivation

  • New designs and technologies of files on the basis of application of solid coatings

    The article presents the new technologies and design tools for опиливания of machine parts. A number of new technical solutions in the field of innovative Metalworking tool for опиливания parts of machines, with a complex of technical and economic advantages over existing analogues. Shows the five variants of constructions and technologies for the production of files and надфилей, based on the use of hard coating. New tools are characterized by a low-cost, low labour-intensiveness of manufacturing and high performance.

    Keywords: tribology, the filing of a painful, spraying, carbide coatings, wear, self-sharpening, reversible cutting plates

  • The investigation of properties of gas sensitive materials based on SiO2SnOxCuOy thin films used in gas sensors for multisensory air monitoring system

    The establishment of automated air monitoring systems is a promising way of the air monitoring devices development. The comparative analysis of literature has shown that thin films based on semiconductor metal oxides are effective and widely used material for air monitoring systems creation. In order to create effective and more sensitive sensors it is important to research processes that occur on the surface of the gas sensitive material when it contacts with different substances. The processes that proceed on the surface of gas sensitive material based on SiO2SnOxCuOy during the interaction with molecules of nitrogen dioxide. Quantum chemical calculations have shown that there are three possible mechanisms of interaction between the molecules of nitrogen dioxide with a surface of gas sensitive material.

    Keywords: multitouch system of the monitoring, gas-sensitive material, molecules of dioxide of nitrogen

  • Cracking of reinforced-concrete elements with holes during torsion and during torsion wist

    Cracking of reinforced-concrete elements with holes is examined. Comparison of theoretical and experiment moments of crack’s  formation during torsion, and during intensive torsion with twist. Formula for practical calculations of cracking of reinforced-concrete elements with holes during torsion and formula for estimate of cracking of reinforced-concrete elements with holes during intensive torsion with twist is suggested.

    Keywords: Crack, twist, torsion, reinforced-concrete, elements, hole, beam

  • A method of numerical modeling of spectrometric systems of gas sensors

      A principle of spectrometric systems of gas sensors was described. A model and a method of numerical modeling of spectrometric gas sensor with the combined radiator-receiver of infrared radiation on the basis of the punched semiconductor thermoresistor were proposed.

    Keywords: spectrometric gas sensor, model, method of modeling

  • The study of the dynamic characteristics Installations for jetting processing surface

      In this article the mathematical model dynamic process installations for blast cleaning the surface, and clearly showed the graph of the transition process, given the theoretical integer parameters yield in the specific process conditions.

    Keywords: Fluid Technology, a dynamic characteristic of the drive, nozzle - gate, jetting processing surface

  • Mathematical and statistical models predicting efficiency of surgical treatment of certain diseases

    Article focuses on the use of statistical models to predict tolerability surgery using intracavitary hyperthermic chemotherapy (IHCT) and the definition of indications and contraindications to perform operations and tolerability for patients with cancer based on the hemostatic patient. This technique allows a high enough accuracy to prediction portability planned surgery, duration of disease-free period, the period and quality of life in the immediate and late postoperative period.Improve treatment of patients with malignant tumors of the abdomen and pelvis, is one of the priorities of modern health care. Relevance of various parameters of immunity, clinical and biological parameters of homeostasis and prognosis of malignant disease in humans will significantly reduce the proportion of late diagnoses of relapses. Recently there has been increased research to find a method of complex cytoreductive surgery and the use of cytotoxic drugs, and physical therapies, one of which is a local intraoperative hyperthermic chemotherapy. With the help of statistical methods has been studied the degree of influence on the parameters IHCT immunity and an estimate of the nature of the immunological changes in different types of surgery. Methods of binary logistic regression analysis was calculated diskriminatnogo forecast portability operation - patient survival probability. Based on the method of multiple regression were obtained algorithms calculate the duration of life of patients after surgery, and the duration of DFS. Studies based on the factor analysis showed that the main factors affecting the prognosis of disease-free period and the period of life are the morphological structure of the tumor volume cytoreduction, the sum of your immune system and cancer markers. Peritoneal cancer index, sex and age of the patient does not have a significant effect on these parameters. Thus, the introduction into clinical practice of the proposed computer systems and statistical forecasting models allow physicians to objectively evaluate the performance of homeostasis, the portability of the planned surgery, more accurately predict the course of the cancer disease and the likelihood of recurrence of the disease and the duration and quality of life.

    Keywords: statistics, modeling, forecasting, surgery, colorectal cancer, disease-free life expectancy, tolerance of surgery, immunological parameters, factor analysis, regression equation

  • Quantum-chemical analysis of various ways of the organization of polymers based on 3-alkyl pyrroles for gas sensors

      Polypyrrole is a perspective material for gas sensors. Property of polymeric chains can vary largely depending on their packing. Power characteristics are studied. Features of a structure and power tetramers thiophenes with methyl, ethyl, propyl substitutions in position 3 pyrroles a cycle are investigated. The most perspective and stable tetramers are revealed from the thermodynamic point. The estimation of laws of formation of a polymeric chain is spent.  Influence of the assistant on stability tetramers is considered.

    Keywords: Polypyrrole, quantum-chemical research, influence of alkyl substituents, tetramer, cycle, polymeric chain, power tetramers

  • Priority problem green building in Rostov-on-Don

    To create in Rostov-on-Don, ecologically effective, technologically advanced and durable green plantings to solve the problem: 1. Create a variety of trees for landscaping cities and towns; 2. Determine the principles of green plantings, ensuring their maximum environmental efficiency. In the steppe zone of Russia should use the structure of the park, with a high proportion of dense plantings (400 trees per hectare) of long-lived trees of the first magnitude.

    Keywords: green building, greening cities, assortment of trees, ecologically effective green plantings, the steppe zone

  • Micropower selective amplifier in basis in radiation-hard process technology ABMK_1_3

    Classical implementation of active selective amplifiers (SA) are usually associated with design sophisticated active elements (operational amplifiers) that consume relatively large power from their universality. This paper present the active SA based on an analog array chip ABMK_1_3, that have high level of radiation resistance to the flow of neutrons and accumulated dose of radiation. This SA implemented on the basis of a voltage-to-current converter with a minimum number of transistors and low consumption static current. Efficient use of current amplifier can be explained by use frequency dependent symmetric chains in a feedback loop. This property provides the independence of the pole frequency f0 = fp on the gain of the active element, as well as maximizing the quality factor.
    The basic analytical expressions that establish the relationships between the SA and the characteristics of active and passive components are given. The relations that help minimize sensitivity of parameters SA to instability properties of the components are considered. Simulation results of desired SA are shown.  

    Keywords: selective amplifier, bandpass filter, active RC-filter, analog array chip, radiation hardness