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  • About finding normative solutions of systems of a heat supply

    This paper investigates the possibility of finding normative solutions in the process of mathematical modeling of systems of a heat supply (STS). Theorems are formulated and conditions for the reachability of the stationary and regulatory regimes of Autonomous and centralized heat supply systems. Formulated search order normative solutions STS.

    Keywords: stationary regime, regulatory regime, system of linear ordinary differential equations, controlling the heat supply, equivalenting of systems of a heat supply, control of the source of thermal energy

  • Drill cuttings as a source of raw materials for production building ceramics plastic molding

    The possibility of recycling waste product obtained in the process of oil drilling, at the facilities of JSC "Orenburgneft" in the manufacture of products of building ceramics. Dobropolye investigated the properties of the original raw material is drilling cuttings and clay deposits Buzuluk, Dobropolye firing properties of the products on the basis of the three-component mixture. The research is aimed at recycling and disposal and recycling of drill cuttings that will significantly improve the environmental situation and will create a reserve of cheap raw materials for production of ceramic building materials.

    Keywords: Drill cuttings as a source of raw materials for production building ceramics plastic molding

  • The horseshoe is a symbol, nalchic in architecture the capital city cbd

    Excessive glass area , as well as the orientation of the plane of the lights on the horizon , particularly in the southern regions with hot and dry climate with plenty of clear and cloudy days in a year , helps increase the flow of heat into the room in the summer and extreme cold in winter, which causes additional ex- pluatatsionnye the cost of ventilation and heating of buildings . This article discusses issues related to the selection and design of optimal systems ceiling light industrial buildings to meet specific CCA - tures of the light climate in the southern regions .

    Keywords: Overheating of the premises , thermal radiation, overlap , Shed lights , skylights , maximum temperature , environment settings , the heat transfer coefficient , the scattered radiation , relative humidity

  • Simulation of retaining wall of embankment by finite element method

    The analysis of design decisions on the construction of a retaining wall embankment intended to unload the rock mass of dump trucks in the hopper of the crusher. The stress-strain state of defense structures and the soil mass in order to select the optimal technical solutions unit retaining wall. The distribution of stresses in the concrete structures and subgrade. The application of handling screens with anchor-Injector for sustainability and strengthening the walls of the mound.

    Keywords: Embankment, cladding structure, retaining wall, designing, finite elements method, subfoundation, subjecting to stress, strains

  • A simulation model of interests coordination in the system of continuing professional education

    A game-theoretic dynamic model of social partnership in the system of continuing professional education is proposed and investigated in the simulation mode on the base of scenario method. The processing of modeling data includes a comparative analysis of state variable and payoff functionals. Results of the model identification and investigation based on simulation modeling are considered. A comparative analysis of egoistic and cooperative approaches to the social partnership is conducted.

    Keywords: social partnership, continuing professional education, simulation modeling, identification, difference games

  • Automation monitoring livneotvodyaschih structures on water conveyance channels Stavropol Territory

    This article describes how the use of software and hardware complex for automating condition monitoring for example livneotvodyaschih facilities. Livneotvodyaschie facilities have a large margin, but a number of negative factors, such as non-compliance with construction technology, defect geological and hydrological features of water conveyance canal route in the design, as well as the wrong mode of operation for the duration of the channel to some extent reduces the effectiveness of permeable properties of concrete canal lining. The problem of long-term operation of such facilities is little scrutiny of the processes for its time, in connection with which there is a need for monitoring of providence water resistance of such structures in case of possible violations of the integrity of the concrete pavement and education, various decompression and voids. With it you can make out the different parameters of defects and damages, as well as the calculation of the projected period of residual life of their elements, and geometrical parameters of each defect, namely - the location, depth, width, height, and operational evaluation of the residual resource, namely - forecasting the total number of cycles of freezing and thawing as passed for the period of operation, and the remaining to the loss of the bearing capacity of reinforced concrete elements water conveyance facilities.

    Keywords: monitoring, automation, carrying water facilities, livneotvodyaschie facilities, software and hardware, reinforced concrete, technical condition

  • Research convective processes in a capacitive heat exchanger

    The article presents the results of an experimental research on the effect of the pulsating mode a capacitive heat exchanger with an active pipe part on the convective processes heated fluid. Described dignity capacitive heat exchangers. The research was conducted using a thermal imaging surveys. Compares two modes: stationary and pulsating. The method of experimental data processing, based on the analysis of fluid layers. A regression analysis allows to determine the dependence of the relative distribution of the temperature difference between the layers of fluid in the studied mode. The obtained regression equations were presented in the form of an exponential function and harmonic. The effect of pulsing regime on the process of convection in the upper quarter of the heating zone in a capacitive heat exchanger. The study showed the advantage of the capacitive heat exchanger with an active pipe part is often compared with the classical heat exchanger in part the speed of convective processes in the fluid to be heated.

    Keywords: capacitive heat exchanger with an active pipe part, pulse heating system, convective process

  • Fire-retardant and high-temperature (oxidation-resistant) vermikulitobetonnye composites with the application of pumice and pumice

    The application of the fire-retardant heat-insulating coatings the application of light fillers is considered the effective method of fire protection of structures. Work is dedicated to the development of the new effective cement fire-retardant and high-temperature (oxidation-resistant) vermikulitobetonnykh composites with the use of ashes and pumice. It is revealed, that the application of construction gypsum and lime as the agent of the concealed hydraulic activity of pumice it made it possible to considerably reduce the expenditure of cement without reduction in the strength of fire-retardant composite. By wood by that saponified 0,1- 0,3% of the mass of cement the expenditure of water for the mixture is reduced during the introduction of resin, the density of vermikulitobetona decreases by 40-50 kg/m3. Is investigated the influence of the parameters of fiber reinforcement by basaltic fibers on the properties of vermikulitobetona. Are revealed the high fire-retardant properties of the developed fibrovermikulitobetonnykh composites. It is established that the addition of the volcanic pumice of the fraction d< of 0,16 ppm 30% of the mass of cement significantly increases the high-temperature (oxidation-resistant) properties of concrete block with a simultaneous increase in the bending strength and without noticeable reduction in the compressive strength. The replacement of the part of the volcanic pumice by the distended vermiculite makes it possible to reduce the average density of the vermikulitobetonnogo composite and to increase their high-temperature (oxidation-resistant) properties.

    Keywords: portland cement, construction gypsum, lime, pumice, volcanic pumice, the distended vermiculite, basaltic fiber, resin wood saponified, the vermikulitobetonnyy composite, high-temperature (oxidation-resistant) properties, the limit of fire resistance, the

  • The production of foamed glass on the basis of technogenic waste and lithium-containing compounds

    The technology of producing foamed glass on the basis of technogenic waste, in particular high calcium waste and lithium-containing compounds, allowing to solve problems of ecology and resource saving. The possibility of using lithium-containing compounds as mineralizing additives foaming foam glass batch. Studied basic properties of foam glass.

    Keywords: preparation of foam glass, industrial waste, high calcium waste, lithium-containing compounds, foaming foam glass batch, lithium-cobalt-oxide material, building insulation materials

  • Theoretical justification of increase of productivity of galvanic sedimentation of coverings on the restored surfaces of details of cars

    Increase of productivity of processes of sedimentation of coverings on the restored surfaces of details of cars without decline in quality of the received deposit is a main objective on the way of improvement of galvanic processes. Productivity of galvanic sedimentation depends on the size of potential of the cathode and the anode; from concentration of components of electrolyte about a surface of sedimentation (cathode); from uniformity of delivery and dispersal of ions of metal on a sedimentation surface; from quantity of active sites of the cathode; from nature of passivation of the cathode; from temperature of electrolyte and from the speed of the movement of electrolyte in prikatodny space. Very strongly passivating of a cathodic surface limits the possible growth of productivity of galvanic sedimentation. Passivating consists in education on a surface of the cathode of the continuous passive film consisting of hydrogen, products of reaction of metal with electrolyte components, oxygen of air and foreign inclusions. The passive film is almost insoluble and disturbs electrocrystallization process, shielding a cathodic surface. And cathode covering speed a passive film directly depends on density of cathodic current. It is possible to assume that at achievement of some value of density of cathodic current the speed of formation of a passive film will exceed, the speed of delivery of ions of metal to a cathodic surface and origin of crystals of the besieged metal will become impossible. And on the remained active sites of the cathode where the passive film is absent or has the smallest thickness and growth rate, there will be centers of growth of crystals of metal (dendrites) on which there will be a concentration of the main processes of electrocrystallization. That is the cathodic surface of the restored detail will become covered by the local centers of sedimentation of metal – dendrites. The passive film interferes with growth of limit density of cathodic current at which receiving qualitative electroplated coating is possible. Mechanical elimination of a passive film during sedimentation of a covering considerably facilitates process of electrocrystallization and formation of a layer of metal on the processed detail surface, provides increase of uniformity of the received layer of metal and its microhardness, and also will prevent active formation of local sites of growth of dendrites at the high density of current.

    Keywords: passive film, adsorption, sedimentation productivity, electrocrystallization, mechanical activation, crystal lattice

  • The analysis of a personnel management system territorial generating the companies of the Rostov region and an assessment of their efficiency

    The analysis of the existing personnel management system of the territorial generating companies of the Rostov region, on the example of JSC LUKOIL-Rostovenergo is carried out. The main directions of a personnel management system are considered: opportunities for professional development and career advance; package of social payments and privileges; moral incentive. Procedure of carrying out a self-assessment of workers and a technique of definition of annual awarding of each worker of one of the territorial generating companies is considered: criteria of carrying out a self-assessment, sequence of carrying out and a formula for calculation of total point for calculation of indicators of awarding. In the conclusion expediency and efficiency of carrying out of this sort of actions of the employees of JSC LUKOIL-Rostovenergo directed on human resource management is analysed.

    Keywords: power industry, human resource management, young specialists, Rostov region, adaptation of the personnel, social payments

  • Assessment of a residual resource of bridge cranes of box-shaped section

    Questions of definition of a residual resource of metal designs of bridge cranes are considered, the main aspects of a settlement technique of the assessment of a resource of cranes developed by VNIIPTMASh (Moscow), and also its program realization in the program MathCad environment are given. Results of inspections of cranes during the period from 2006 to 2010 are stated.

    Keywords: residual resource, bridge cranes, box-shaped section, operation, assessment

  • Assessment of a residual resource of bridge cranes of cross-shaped section

    In work questions of development of a technique of determination of size of a residual resource of bridge cranes of trellised section are considered. When developing a technique the accounting of dynamic nature of loading, deformations of racks and raskos, decrease in load ability of the bearing designs for a cause of wear of their constructive elements is made

    Keywords: bridge cranes, residual resource, rod designs, stability

  • To a question of an efficiency assessment of the enterprise's logistic activity

    Article is devoted to the questions of an efficiency assessment of the company's logistic activity . Possible indicators of an efficiency assessment of logistic activity of firm are considered. The system of indicators of an efficiency assessment of logistic activity is offered.

    Keywords: logistic activity, efficiency of logistic activity, indicators of an assessment of logistic activity

  • The construction scheme of the intellectual potential of a construction company as a result of peer review group and its structural components The construction scheme

    The article analyzes the current problem of assessing of the intellectual potential staff to better manage the organization. Considered stage peer review of the intellectual potential of a construction company. The author proposes a ternary diagram of the structure of the intellectual potential of a construction company, and established the importance of the individual components on the basis of the expert evaluations. The author defines ""intellectual potential building organization"".

    Keywords: intellectual potential,management of the construction organization, components, expert evaluation of personnel, intellectual level employees