The article discusses the content of mercury in soils and sediments of the Don River Delta. The features of the spatial distribution of metal concentrations, as well as the transverse profiles and depth. Calculated the volumes of mercury in bottom sediments from soils with surface destruction, both on individual sites and throughout the of the Don Delta.
Keywords: mercury, soils, bottom sediments, Don river, delta
The technique of pilot natural studies by definition of critical effort at which there is a capsizing of the trees together with root system growing on coast of reservoirs of the hydroelectric power stations subject to washout as a result of impact of fluctuations of water level, wind, wave loadings and abrasion is given It is necessary for establishment of possibility of use of trees of a coastal zone as support of rope system of devices for collecting and transportation of wood. Pilot studies were conducted on Bratsk and Ust-Ilimsk reservoirs during the period from 2000 to 2012.
Keywords: coastal zone of reservoirs, the washed-away coast, the coastal water area, critical effort, wind loading, effort of rooting out, prism of roots , support of rope installation, wood transportation, "ownerless wood"
In article considered new rigging locks, for reliable fastening of raft side binding, chains, bindings when forming sections, rulers and rafts from assortments and switches, and also the "ownerless" wood with various dimensional characteristics differing in simplicity, availability and low cost of their production in the conditions of repair bases the timber floating of the enterprises are described.
Keywords: rigging lock, timber bundling, raft, wood alloy, "ownerless wood", coastal water area
The paper presents the results of a study on the influence of seasonal conditions on the reliability of diesel and gas diesel vehicles. During the experiment were treated with statistical data on the failure of the two groups of trucks, methane-diesel and diesel operated under the same conditions. As a result of analysis found seasonal variations in the flow of failures between the two groups. Then the failures were divided into failures of components and assemblies cars such as engine, transmission gear and chassis of cars. This division has revealed the influence of seasonal conditions on the reliability of components and assemblies of diesel and gas diesel cars and their differences. Studies have shown the need for adjustment of norm in the planning of maintenance and procurement of spare parts for gas diesel vehicles.
Keywords: Stream failure, gas equipment, seasonal conditions, the reliability of vehicles, maintenance and repair
The article presents a method of forming a rational structure of the truck fleet. This method allows to evaluate the effectiveness of means of transport for which there are no statistics on the operation under specified conditions. The same methodology takes into account the possibility of application gas-equipment on rolling stock and its impact on the change of technical and operating characteristics of the vehicle. The methodology used method of expert evaluations, taking into account the weight factors. In the first step introduced initial data on operating conditions, and a cargo nomenclature, technical and operational performance of the car and so on. Next it is determined whether there is information about the operation of the vehicle under specified conditions. In the absence of information, used the method of expert evaluations based on weighting factor. After filling out all the necessary information is made choice of truck that meet the specified requirements. Calculated the cost of transportation of cargo for selected vehicles on the basis of the performance of the vehicle and the cost of its operation. On the basis of the definite operating conditions and Calculated the cost of transportation of cargo, is formed park of the trucks matching the given parameters, and with the greatest efficiency.
Keywords: The method of expert evaluations, the weight factor, gas equipment, methods of formation of the park, the cost of transportation.
Because the issues related to the calculation and design of the cable properties of the products, determining the impact of various factors on their physical and mechanical properties, has hardly been mentioned in the literature, it is of interest consider these questions with regard to features braided and twisted ropes.
Keywords: woven products, strands, woven products, ropes, weave
This work deals with the complex technical measures directed to providing geomechanical safety of the ground surface areas in the places of location of opening inclined underground workings of abandoned coal mines. Technology and succession of fulfillment of works on repeated liquidation of inclined underground workings is considered on the example of the mine ""Zapadnaya-Kapital'naya"" of the Limited Joint Stock Company "" Rostovugol'"".
Keywords: abandoned coal mines, old inclined underground workings out, damage of the earth surface, geomechanical safety, plugging up underground workings out
The study combined methods of influence on agricultural inputs in the process of post-harvest handling is largely associated with the development of instrumentation that allows to control the factors that affect the material. The article describes the results of theoretical and experimental studies to determine the electromagnetic field in a layer of grain material undergoing microwave treatment. In the field of theoretical research will come an exponential decay law of an electromagnetic wave in the material and the model built in the software package CST Studio. It is also a view of equipment designed for the experimental evaluation of the field intensity and its distribution pattern in the layer of the processed product. The dependences describing the measurement principle is implemented in this device. It provides an assessment of compliance with the theoretical and experimental methods of measurement. Increasing the accuracy of the experimental measurements can be achieved through the use of optical contact temperature sensors, as well as the use for the manufacture of the receiving materials with known data reliably dielectric properties in a given temperature range. The data obtained can be used for determining structural parameters of the microwave exposure zone, and for the development of control systems equipment. Finally, the conclusions based on the results of the work presented.
Keywords: energy efficiency, the microwave field, thermal processing of grain, field modeling, direct heating, dielectric
The article presents a statistical analysis of non-compliance with safety at work over the past few years, the reasons for violation of safety rules and consequences such as industrial injuries, occupational disease and mortality in the enterprises of the Russian Federation. Based on the analysis, the most dangerous in terms of the safety industry are the companies of the construction industry.
Keywords: labor protection, safety requirements, the company building industry, industrial injuries, occupational disease, labor protection measures, ability to work, harmful and dangerous production factors
is considered the study of the issues of higher education come from families with middle and higher education as part of the impact level educate parents on the quality of education students. Topicality of this article is caused not only an analysis of the availability of research in higher education, but also the possibility of receiving it. The concepts of "cultural capital" discussed in the article allows modern Russian youth to understand and realize the importance of quality education, in view of the indicators and aspects that are inherent in a given social environment. Regardless of the level of education of the family in modern society, to establish certain criteria when choosing a higher educational institution allowing to find themselves in the current economic realiyah.
Keywords: ducation, parental education, cultural capital, income, socially privileged layers
One of the criteria for the effective operation of modern machines, machinery, tools and devices is a quiet drive. Research noise generation in mechanical gears is important. A modernization drive with a flexible link, as a method of solving the problem of noise reduction.
Keywords: noise, vibration, drive, machine, mechanism, chain drive, toothed belt drive, a study, a flexible connection
One of the criteria for the effective operation of modern machines, machinery, tools and devices is a quiet drive. Research noise generation in mechanical gears is important. A modernization drive with a flexible link, as a method of solving the problem of noise reduction.
Keywords: noise, vibration, drive, machine, mechanism, chain drive, toothed belt drive, a study, a flexible connection
In this article methods of copper ultrafine powders stabilization from agglomeration and aggregation by water soluble polymer in process of production by electrolysis on vibrating cathode, as well as their effect on physical and mechanical properties of polymer composites.
Keywords: ultrafine powders, stabilization, friction coefficient, wear, structure of composite materials
The effect of two surface-active substances (SAS) - polyvinylpyrrolidone (PVP) and polyacrilamide (PAA) on formation kinetics of anodic synthesized electrolytes for copper powders production was reviewed, as well as product properties. It was found that the copper powder properties defined by polymer film of PVP and PAA formed on cathode surface. Nanosized particles percentage increasing by dints of copper ions direct discharge from ammonia complex ions provided by polymer film. In the electrolyte containing PAA is possible to obtain copper powder with nanosized (less 100 nm) particles content of 50,2%, average size in nanosized range is 43nm with needle-dendrite particle shape
Keywords: electrolytic copper powder, vibrating cathode, polarization curve, chronopotentiometry, potential dip after current tripping, particle size distribution, water soluble polymer, nanosized particle, ammonia chloride, polyvinylpyrrolidone, polyacrilamide, am
Most important information about an environmental resistance (moisture, cyclic change of the temperature, ultraviolet radiation) of high strength composite material can be received at the compressive mechanical testing. The reinforcing fibers that are oriented along the specimens axis (or are oriented on the small angles relative to this axis) carry the main tencile loading. Conversely, at the compression the elastic and strength properties of the material, basically depend on the matrix properties. The specimens for mechanical testing are usually manufactured as relatively thin rectangular plates by winding or laying-up that corresponds to the ready composite parts. In order to eliminate buckling of the specimen at compressive test, its working length must be very shortened. So, this working part is unavalable for the extensometer instalaltion, and compressive strain of the specimen can be determined by the stroke of crosshead only. This stroke is a sum of very small contraction of the specimen and crosshead displacement due to elastic deformation of the testing machine. We determined the dependence of elastic deformation of the testing machine at the preliminary testing to exclude this deformation from the testing data. We present the features of the compressive testings and their numerical processing at the study of high strength GFRPs, and also the character of composite fracture studied by means of the scanning electron microscopy.
Keywords: Polymeric composite materials, multilayered composites, environmental resistance, experimental technique, compressive testing, scanning electron microscopy
There presented paper presents the survey of industrial systems of aspiration and the results of analysis of variance of cement dust released from the equipment in this article. It was described the main technological processes, devices and related major sources of emissions and discharges of pollutants into the atmosphere in the cement factories in this paper. It was proposed a common generalized approach to determine the actual effective or hydraulic sized dust particles using by new experimental set up equipment to get high accuracy. It could be done using the results of analysis of variance (ANOVA) for sand’s dust and etc. bulk building construction materials. The development of new experimental set up equipment was ensured to decrease some negative influence of the old one. It was made a comparison changing cumulative distribution of the equivalent size of dust particles within aspiration schemes. I was fulfilled the comparison changing cumulative distribution of the equivalent size of dust particles after wet cleaners and inertial separation’s device (VZP) decreasing dust systems of aspiration schemes emissions exhausted in the atmosphere in the production of cement. The paper presents the ways to define cumulative distribution function depending of the equivalent size of dust particles of statistical processing the results of the analysis of variance by polynomial regression.
Keywords: Dust, cement, sand, cleaning apparatus, wet cleaning, building materials, wet cleaning, leakage, emissions, environment, scheme, an atmosphere, dust decreasing
The problems of organization of the movement "express route" in the urban passenger transport. The algorithm and the calculation of time-saving passenger in the formation of the route in the operating mode "express".
Keywords: urban passenger transport, speed, time-saving, transportation route, "express route" traffic, street and road network, ridership
In article the analysis of an existential fullness in line with psychology of professional health is carried out. The condition of modern psychology of professional health is described. Idea of an existential fullness within positive psychology and philosophy is described. Major factors of professional health are allocated. Such factor as an involvement into professional activity is in detail described. It is shown, what impact on professonalny health the factor of emotional burning out has. Research of an existential fullness as criterion of professional health is provided and described. The conclusion that represents an image of the average middle manager in the conditions of the Russian reality is drawn. Authors offer also concrete ways of solution of the problem of emotional burning out, an insufficient involvement and a lack of an existential fullness as factors of working process for the psychologists working with staff of the organizations.
Keywords: health psychology, psychology of professional health, positive psychology, existential fullness, existential perspective, involvement into work, emotional burning out, psychology of the organizations, correction of emotional burning out, work psychology
The article describes the temperature changes of car batteries (AB) in the winter.Identifies key factors determining the thermal state of AB. Proposed calculation methods, based on the determination of the rate of heating and cooling AB. Based on these data it is possible to calculate the charging current for determine battery charge/disgharge balance AB during it operation in cold climate conditions.
Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production
On the basis of the conducted research, a theoretical and practical task of reducing repair costs was solved, by determining the regularities of performers qualification influence on repair works productivity and quality. Optimization of repair staff vocational structure involves the use of an imitating model to perform calculations for a specific enterprise. For practical use, a software product «Staff_Qualif_Level» was developed. With the use of that imitating model, the second kind regularities can be obtained: an impact of various factors on the vocational structure of repair staff, according to the minimum cost of cars and repair area downtime. The practical value of the research results consists in the development of the software and method of determination of the optimal repair staff vocational structure, the use of which provides for repair costs reduction.
Keywords: production workers, technical service, transport companies, qualified production workers, efficiency, technical maintenance of cars, simulation
the article presents and analyzes the results of an empirical study of professional perceptions and views on success of students of technical specialties. Describes the features of the concepts of object of activity and work, depending on the dominant model of success for students. With the help of correlation analysis established the relationship of the image of the profession and models of professional success.
Keywords: professional presentation, success, successful professional activity, object activity, the students
The article presents data on the possible activation of biocenosis due to the electrostatic fields on the structure of colonies of microorganisms. The results of experimental studies on the effects of constant electric fields on Biosystems and the substantiation of the mechanism of activation of microorganism colonies. Studies have shown that the electrostatic field activate colonies of microorganisms, there may be a change in pH of the aquatic environment, concentrations of suspended solids, the specific rate of oxidation of microorganisms, the concentration of biochemically oxidizable organic compounds (hereinafter BOD5), chemical oxygen demand (hereinafter COD), the efficiency of wastewater treatment. In the system with electrostatic treatment recorded the emergence of molecular hydrogen.
Keywords: electrostatic field, the influence of physical fields on the colonies of microorganisms, the electrostatic field, the activation of biocenosis
There was a need for geotechnical monitoring during construction of underground facilities. The organization of monitoring control tensile forces in the concrete anchors. Comparison of experimental and calculated data, which revealed that the deviation does not exceed 19%. When using anchor embedment length limited in a large range of conditions in a rod anchor having critical internal forces. To increase the efficiency of anchors in their construction can be used in flexible elements of the anchor bolt assembly.
Keywords: underground construction, monitoring, anchor well, tensile forces, the bearing capacity, the compliance node
The article presents the main results of theoretical and experimental research in the field of non-destructive testing and forecasting of geomechanical condition of the arched part of the transport tunnels. It has been shown that this goal can be to apply a method of acoustic resonance inspection. Methodology Research was registering the resonant response of the layered rock mass to impact mechanical excitation of an acoustic signal. Initiation and receive elastic vibrations produced in the lower layer of the breed. These technical and economic parameters allow to recommend Geophysical prediction described underground geophysical methods for wide industrial use during transport tunnels
Keywords: geomechanical state geological environment, the array, evaluation, arched part, the transport tunnel spectrum, acoustic resonance inspection, prognostication, control, forecast, weakened mechanical contact
The modern world is experiencing a new period of development, which in its essence and significance surpasses the previous stages of the evolution of society. We are talking about changes in all spheres of human activity, including in the interaction between society and nature. Modern trends in socio-economic development of society aimed at ensuring sustainable production and environmental safety in the application of various manufacturing and processing technologies. It is especially important to create conditions in the disposal of industrial and household waste, as the use of secondary resources will reduce the deficit of natural resources due to its depletion. And to ensure the functioning of the economic conditions and prospects for the development of such technologies and their effects on the environment will help to research and development of appropriate economic instruments. Rate the degree of approximation to the level of the production system is extremely effective technology in terms of environmental impacts can use environmental monitoring her condition, which can be carried out in various areas, the relevant objects of research. It is thus possible to monitor the dynamics of the processes of development of systems to give an adequate idea of the most significant economic and environmental consequences of the practical implementation of the proposed construction and installation work.
Keywords: recycling, recycling, waste management, waste production and consumption of natural resources, resource, production systems, environmental organizations, economic efficiency and environmental safety