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  • Topical issues of organization and management in the enterprise

    The company's development and competitiveness much more determined by how well organized management of production resources. In this article investigates the role of production resources, operations, and overall organization systems in the production process, priorities are considered competitive and competitive advantages tools and technology making the production process. Studying this article will allow the Russian managers to make effective decisions in the new conditions of doing business in Russia.

    Keywords: organization and management of production, production systems, production resources, competitive priorities, operational strategy

  • Monitoring and mathematical modeling of microbial air pollution near highways Volgograd

    The aim of this work was to conduct monitoring and make a regression model of the microbiological air pollution in Volgograd near highways. The work carried out monitoring of microbial air pollution in the residential district of Volgograd near two major highways - first and second longitudinal lines. On the first phase of research the microbial monitoring of air pollution in the residential district of Volgograd was conducted, depending on the proximity to the highway. Number of microbial cells (MC) was evaluated by sedimentation. The assumption is made about the nature of the regression relationship between microbial air pollution and the distance from the highway. Approximating functions and regression coefficients are constructed for the first portion of the longitudinal line at different levels of traffic road. Function is obtained, which allows to calculate the value of microbial contamination of the air, depending on the distance to the road and number of vehicles. In the case of high levels of the microbiological monitoring of the basin air it’s necessary to carry out measures to reduce microbial contamination of the air, for example, regular watering roads, tree planting, vegetative barriers adsorbing pollutants, chemical treatment of disinfectants. The calculation of microbial contamination of the air near a residential building located at a distance of 10 meters from the highway in the central region of Volgograd is conducted using proposed in function prediction of microbial contamination. The developed technique allows us to make calculations without setting up experiments in a specialized microbiology laboratory.

    Keywords: monitoring , microbial contamination of air , the regression model , mathematical modeling

  • Analysis of current economic mechanism of stimulation of rational water use in Rostov region

    An analysis of the current economic mechanism of stimulation of rational water use of the Rostov region, which consists of the following elements: water, expressed in the tariff policy of the region, program-target planning in the field of water use, environmental permitting and licensing of water management activities, preferential tax and investment policy, modernization and development of communal infrastructure, ecological monitoring are the main economic instruments used in each item, highlighted the advantages and disadvantages of the current economic mechanism.

    Keywords: economic mechanism of stimulation, water use, rational water use, incentives, penalties

  • Calculation of coefficient of operating conditions of pipelines of the West Siberian region.

    Calculation of coefficient of operating conditions of the pipeline is presented in article for the West Siberian region. Dependence of service life of the pipeline on this coefficient is presented. The data of samples witnesses received in laboratory of nondestructive control, confirming relevance of this subject are provided.

    Keywords: corrosion, wall thickness, standard service life, pipeline, coefficient of working conditions, diameter, pressure, settlement resistance.

  • Simulation modeling as a means of training for drivers

    Сonsidered the main contents of the method of simulation within complex software development of object-oriented programming and the use of means of creating and editing three-dimensional graphics and animation. Program animation is done on the basis of GOST R 52289-2004, traffic rules specified performance cars motion parameters of the roadway. The complex is designed for both group and individual lessons.

    Keywords: qualitative analysis, simulation, development environment, software animation, traffic situations, precise image scaling

  • Selection of promising topology construction for a frequency converter of electrically driven gas pumping unit

    The article considers the design of modern electrically driven gas-pumping unit (EGPA). The advantages of a smooth adjustment of speed and performance EGPA. Provides an analysis of options for building the power part of the high-voltage frequency converters, used in the composition of the EGPA at compressor stations of main pipelines. Refer to the element base of high-voltage frequency converters. The characteristics of each of variants. The method of work of the frequency converters. Compare the characteristics of frequency converters of various manufacturers. The basic approaches to manufacturing. Defined the most optimal scheme of the power part of  frequency converters.

    Keywords: frequency converter, topology, design, optimization, structural scheme

  • Calculation of the capacitance of the capacitor on the DC link active harmonic filter

    Block diagram of the active harmonic filter is considered.  State table inverter power switches active harmonic filter is considered. Calculated the capacitance on the DC link active harmonic filters. The calculation takes into account the power converter losses in the active harmonic filter.

    Keywords: active harmonic filter, distortion power, energy storage capacitor

  • Using hardware in the loop simulation in design of data-measuring and controlling systems

    Today’s trend of electronics complicating makes developers to create more complex devices in a shorter time. Developers have to contrive different ways of designing automatization to prevent production worsening. However, automatization cannot improve the situation when an innovative device is developing because such developing involves a lot of testing and researches. In this article authors propose to use hardware in the loop simulation methods to optimize designing process. Hardware in the loop simulation is division the device in functional blocks, some of them are produced as models and other are produced as hardware. Usage of this method decrease cost of modernization hardware blocks and allow using a number of data processing algorithms at the same time.
    The article contains a using of hardware in the loop actuality description, main steps of designing enunciation and description of method exemplified by designing of data-measuring and controlling system for automatic orientation of tropospheric communications station.

    Keywords: hardware in the loop simulation; data-measuring and controlling system; design of electronic devices; development of electronic devices;

  • Machine for snowmelter

    snowmelter item, thawing, heat balance, thermal conductivity, the intensification of the phase transition.

    Keywords: snowmelter item, thawing, heat balance, thermal conductivity, the intensification of the phase transition.

  • Machine Repair temporary winter roads

    The methods of construction and repair of temporary winter roads, proposed technical solution for creating devices that provide a significant increase in strength, bearing capacity and durability of the repaired snegoledovogo cover winter road at full mechanization of the process of recovery.

    Keywords: Winter road, a temporary winter road, moisturizing, repairing, mechanized complex snow mass, milling machine, load capacity

  • Justification life extension bearing precast low-pressure water-lifting shield dams

    The problem of justifying extending the service life of hydraulic structures in Russia is unsatisfactory condition requiring modernization and refurbishment. Currently in Russia over the length of the river network of 2.37 million sq km includes more than 125 thousand rivers that can be used for navigation. When locking, the most widely found as regulator control structures of low pressure shield dam spillways with metal swivel farms most widely used when evaluating the residual life of structural elements carrying water conveyance structures, has an integrated risk assessment of the accident. According to the distribution curves can be classified technical condition of each item, such as rods and plates in various defects as small and dangerous damage the elements included in the design. During the simulation obtained contour plots of stress-bearing low-pressure water-lifting precast shield dams for subsequent prediction justify continued reliable exploitation. The concept of life extension studies supporting structures prefabricated low-pressure water-lifting shield dams on the example of individual structures bearing elements, prefabricated low-pressure water-lifting shield dams, based on modeling of the loading process from various defects and damage due to prolonged use.

    Keywords: water-conducting structures, prefabricated pumping low-pressure-mounted dam, modeling, technical condition, residual life.

  • Analysis and development of approaches for the stimulating part of engineering staff remuneration

    The paper presents and analyzes the main methods of material stimulation of engineers and technician staff on russian and partly foreign enterprises, taking into account national management models. The article highlights the indicators that affect the stimulating part of remuneration for different occasions.

    Keywords: engineering and technical personnel, remuneration, the stimulating part of remuneration, performance labor.

  • Stability of linear delay-differential equation of milling process

    A stability problem of milling process is under consideration. A novel analytical tool is presented to assess the optimal cutting parameters which provide a chatter free machining. Chatter instability is broadly studied in the literature. However, the problem of simultaneous optimization of radial and axial depths of cut is kept out of scope. To describe the optimization method a single-degree-of-freedom model of milling process is investigated as well as corresponding equation of motion and function of cutting force. A unified delay-differential equation is proposed. A theorem of asymptotic stability is suggested. Suggested optimization technique allows to create a diagram of radial and axial depth-of-cut dependence.  As shown, there exists an extremum of function of axial and radial depth-of-cut dependence.  

    Keywords: chatter, stability, delay-differential equation, oscilations, self-excited vibrations, optimization

  • Research of algorithms vibroacoustic diagnostics vehicles

    With the growing fleet's increasingly acute problem arises safety and reliability their exploitation as a result of this increase in productivity and accuracy of their technical diagnostics. Urgent task to further improve diagnosis for vehicles is to develop new methods and algorithms highlight the dominant component of the information in relation to a wide class of vehicles. The methods joint time-frequency and wavelet analysis. To isolate the dominant component of the information proposed to use the method of wavelet decomposition. Using vibro acoustic registration nodes vehicles funds allowed to receive signals carrying information about the defects of individual units of vehicles. The proposed decoding algorithms signals have high reliability, allow technical inspection, subsequent monitoring of the technical state of the vehicle. Using vibroacoustic registration of vehicles allowed nodes receive signals carry-ing information about the defects of individual units of vehicles. The proposed decoding algorithms signals have high reliability, allow technical inspection, subsequent monitoring of the technical state of the vehicle.

    Keywords: vehicle, vibroacoustic diagnostics, dominant information, time-frequency analysis, wavelet analysis

  • Synthesis and electrochemical characteristics of the new composite cathode material of LiMn2O4@LiCoO2 for lithium-ion battery

    The composite cathode material of the core@shell type with the LiMn2O4@LiCoO2 formula of has been successfully synthesized using the solid-state reactions in several stages. Its structure has been studied by means of X-ray diffraction, scanning and transmission electron microscopy and vibrational infrared spectroscopy. Electrochemical investigation in two-electrode cell has been showed improvement of characteristics of the synthesized cathode material than the constituent components. The specific power of LiMn2O4@LiCoO2 is 650 mWh/g, against 450 and 500 mWh/g for LiCoO2 and LiMn2O4, respectively.

    Keywords: lithium-ion batteries, cathode materials, Delafosse, X-ray structural analysis, electron microscopy, electrochemical properties