The article presents data on the coefficient of performance (COP) of the existing irrigation systems, data on losses from irrigation channels and the distribution of their filtration. Examines the implications, fuss-tic at lower efficiency and as a result, filtration of water from irrigation canals-systems. A number of measures to reduce the loss of water through seepage from irrigation canals, including: maintenance, engineering and design activities.
Keywords: Filtration, irrigation system, coefficient of performance, protivofiltratcionnye activities, covering, cladding, screens, geosynthetics
Presented the results of investigation of the motion of logging trucks using systems GPS-monitoring. Is investigated change of output per shift productivity calculated for considering trains when moving at a distance of 150 to 500 km in increments of 50 km. Examined the effect of distance of transportation and standard deviation values of speed on change the output per shift productivity. More than that was is studied the influence of transport distance and shift productivity values on the change the cost of removal of 1 cubic meter of timber harvested.
Keywords: output per shift, logging truck, the systems GPS-monitoring, maintenance cost, removal
In this paper a modification of logic element DC LUT FPGA is proposed for the purpose of the acceleration of diagnostics. Simulation of proposed modification was performed in the system NI Multisim 10 by National Instruments Electronics Workbench Group. Evaluation of hardware costs is also given.
Keywords: logic element, DC LUT, FPGA, diagnosis, reliability
A model system was designed and test trials of physical and mechanical characteristics of small – crystalline and granular flotation potassium chloride are studied. This model system allows to design storage and transportation of fertilizers in bulk in railway wagons and it has the same static and vibrational load as real system. The effect of temperature and relative humidity of the air on hygroscopy of small – crystalline and granular КСl were studied. Furthermore the influence of static load, and time length of compression process of fertilizing layer and parameters of static and vibrational load on composition of КСl granules were investigated. It was experimentally proved that the humidity increase (0,5 %) of granular КСl and the increase of static load and time length of compression process of product during transportation in bulk lead to increase of compaction degree and caking ability of product. Research of the influence of high static load (10-30 kg/sm2) and time length of compression process of fertilizing layer on caking ability and degree of compaction show that small – grained KCl has smaller degree of compaction and considerably higher value of caking ability in comparison with granular KCl.
Keywords: Potash fertilizers, storage and transportation, hygroscopy, caking ability, degree of compaction, commodity characteristics of fertilizers
The article highlights the conditions for effective diversification. The factors of the internal environment, affecting the efficiency of diversification.
The methods of analysis of the market, allowing you to tailor a strategy of diversification to the changing conditions of competition in the market.
Shows the need for structuring diversification, given the group on current issues, as well as a comprehensive solution to these problems, we have an in-depth analysis and diagnosis with the subsequent implementation on the basis of this analysis in the operation of the enterprise.
There are four stages of diversification of copyright: in the first step to solve the problem of selecting priority areas for development within the economic entity, the second stage is the process of structuring a problem specific to the business entity; the third stage should be determined by the direction of the use of innovative resources as the main form for priority directions ongoing diversification; fourth phase to establish mechanisms for the implementation of diversification at the business entity.
Keywords: diversification, enterprise, efficiency, factors, criteria, stages
This article discusses the problems of retail network in Russia and the main directions of development of the domestic networks in connection with the expansion of foreign networks and Russia's WTO accession. In the harsh conditions of competition will survive only those commercial enterprises that will practically use logistic as business philosophy and methodology, and the main provisions of logistics management in their business practice
Keywords: Retail network, development of retail network, Logistizatcija retail network problems network retail, logistics strategy, logistics management
Systems of passive damping of oscillations of high-rise constructions are considered. Their merits and demerits are revealed. The roller system of oscillations indemnification of the high-rise constructions subject to seismic influence is offered. The principle of its work is described. Advantages are estimated.
Keywords: high-rise construction, damping of oscillations, passive systems, roller system of indemnification, vibroisolation
In the article, the problem of reliability ensuring of bulldozers working at oil and gas objects bases backfill is considered. Typical failures are revealed. Statistical data on time between failures of bulldozers’ elements are obtained. Time between failures distribution regularities of running gear elements and engine are determined. Adequacy of logarithmic normal law of distribution and Weibull’s law is proved. Directions of the received results use are offered.
Keywords: Bulldozers, reliability, time between failures, distribution law, oil and gas objects
Developed criteria for matching the oscillation frequencies of sensitive elements biaxial functionally integrated micromechanical gyroscopes-accelerometers LL-type. Review the results of modeling.
Keywords: microsystm technology, element base, model, modeling, gyroscope, accelerometer, sensor
In the present work proposes a specified description of potential functions when the free spreading in the two-dimensional turbulent flow of planning. In contrast to previous decisions, new parameter satisfies the continuity of flow when the flow flowing from rectangular tubes on the discharging track
Keywords: final line of motion, lines of equal potential, horizontal rectangular tube, diverting from the mainstream flow
Now development of the administrative principles is directed on selection of the corresponding forms of total activity of employees of the investment and construction sphere. The methodology of a point of profitability shows, how many production the organization has to realize to refund the expenses. We offer model of management of integration in construction, using the mathematico-statistical analysis and considering calculation of a point of profitability. Here factors – receptor, administrative and effector take place. In experience information of the construction enterprises of Rostov-on-Don was used. The profit after introduction of innovations grows quicker, than before their introduction since the point of profitability decreases after calculation of the organization for invested in innovations. On examples the criterion of expediency of merge of the construction organizations – the carried-out amount of works is shown. On the basis of this criterion it is possible to solve a problem of streamlining of operations in construction systems by integration of information space of organizational and technological, economic and other applied systems.
Keywords: аssessment, effective, land tenure, methods, expert, factors, hierarchy
Selection of shots – one of key components of a personnel management system. Trial and error methods of the personnel share on active and passive, and sources of attraction of shots – external and internal. Active trial and error methods use, in the majority when on a labor market demand exceeds the offer. Passive trial and error methods use when the offer on a labor market exceeds demand. Most widespread of passive methods can call placement of announcements in which the name of open vacancy, requirements to competitors is indicated to a position, work terms of payment. To external sources of attraction of the shots, applied most actively, rank: the announcement on television, in newspapers, on radio, on the Internet; visit by employees of the company of educational institutions; appeal to the centers of employment of the population and staff recruitment agency. Search plus in the company is that fact that when filling vacancy to this position the person familiar with orders of the organization, with its personnel and rate of work that is pledge of successful work gets. The worker adapts for a new position easier. Advantage of an internal set is an increase of motivation at employees to better performance of duties. One more plus – comparative low cost in comparison with external. Qualitatively new approach to selection of the shots arriving for work in the prestigious companies is offered. The experts possessing desire and ability of strategic planning of development of business and as persons are necessary for the advanced company.
Keywords: personnel, selection, selection, integrated approach, strategic thinking, profit, collective
The problems of finding and implementing provisions increasing the competitiveness of domestic production due to the effective capitalization of resources , which is a set of multi-level institutional processes and management actions to ensure efficient binding of economic resources for the modernization of innovation based on the reproduction processes in the enterprise. Shows a conceptual view of the process of strategy formation capitalization resource industries in the cluster. A scheme of structure-function relationships of subjects clustered relations conditional capitalization of resources.
Keywords: capitalization of resources, institutional bondage, clustering relationships, competitive potential, enterprise, innovation development
The article discusses the factors and principles for regulating the real estate market taking into account the interaction between the cost of land and housing projects, and also makes suggestions for a balanced model of regulation of the market.
Keywords: real estate, land, housing, the cost of the regulation.
This work deals with the study of atomic and electronic structure of kaolinite samples (Glukhovtsy deposit) and montmorillonite (Millerovsky deposit) by density functional theory. The applicability of existing exchange-correlation potential in the local density approximation (LDA) and the generalized gradient approximation (GGA) is analised for an adequate description of the physical properties of layered aluminosilicate. An experimental and theoretical study of the IR spectra of minerals, as well as the identification of the most intense absorption bands, performed in the approximation of DFT using the exchange-correlation potential PW91. The analysis of the band structure of these minerals, which showed that these compounds are direct-gap insulators.
Keywords: DFT, clay, clay minerals, phyllosilicates, atomic and electronic structure, crystalline systems, IR spectrum band strukutra, the electron density