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
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.
The substantiation of the need for the preparation of thermal hydraulic drive road construction machinery (SDM) operating in the North. Given that a significant number of failures falls on hydraulic drive elements, it becomes urgent need to study their work and causes of failures. In order to analyze the thermal training funds, the development of new systems is necessary to study thermal characteristics of hydraulic drive elements SDM operated at low subzero temperatures. It is necessary to take into account the rate of change of the processes occurring in the hydraulic drive. In accordance with the above requires a quality measuring equipment, created on the basis of analog-to-digital converters. For this analysis instrumentation for experimental studies. Currently, at the Department of Transportation and technological systems developed hardware and software for temperature measurement system for monitoring hydraulic drive elements SDM.
Keywords: construction machinery, operation, negative temperature, hydraulic, thermal preparation, measurement, sensor
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.
This article describes the way of the grain material in grain cleaning unit at various purification schemes. Researches on wheat injury when variii various schemes. Spotted seed purification scheme with the lowest percentage of damaged seeds and basic characteristics agaregata functioning under the scheme.
Keywords: grain material, fractionation, seed cleaning, grain cleaning machine
The article depicts test results of ballastless track system roadbed stressed state. In-situ tests of roadbed vertical stresses were held considering rolling stock type and speed. Roadbed vertical stress distribution dependence was carried out.
Keywords: Roadbed, ballastless track system, RHEDA 2000, vertical stress damping, stress distribution
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
Reviews the basic contents of diversification of thermal power plants, which will contribute to improve environmental and economic performance in the industry.
Keywords: diversification, enterprises of power industry, enrichment of coal, ash dumps, pollution, species blade, air pollution, ash, slag ash, secondary resources.
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
Problem research of display the orthogonal projection of four dimensional hypersurface defined by the equation in an implicit form one and two hyperplane. To communicate and bypass hypersurface Discriminants assumes that the hypersurface of the two-parameter family of two-dimensional display received surfaces in five-dimensional space. The analysis of kriminant four dimensional hypersurface orthogonal projection onto the coordinate hyperplane in two coordinate axes. The intersection of three dimensional hypersurfaces axiom (kriminant) defines a two-dimensional surface that is the envelope of the two-parameter family of two-dimensional surfaces. Are the necessary and sufficient conditions of existence of this envelope.
The results obtained are used to study the Discriminants four-dimensional hypersurface, the display of two-parameter family of spheres in a five-dimensional space.
Keywords: a family of surfaces, hypersurface, envelope, the display features, а discriminant.
This article investigated the quality of the bread produced by the bakery Starominskoy consumer society. bread applies to goods of strategic importance and plays an important role in human nutrition. The paper presents the study results of the range of bakery products bread-baking plant and consumer preferences. Defined organoleptic and physical-chemical indices of quality of bread. The results were compared in quality bread with the requirement of GOST R 52961-2008. The conclusions about the quality of bread. Keywords: bakery products, organoleptic indicators of quality, physico-chemical quality indicators, baking industry, range, questionnaires, consumer demand. Code of specialty: 08.00.05;
Keywords: bakery products,organoleptic indicators of quality, physico-chemical quality indicators, baking industry, range, questionnaires, consumer demand.
The article explores the main types of organization of the corporation and management in Russia. The corporation is defined as a special organizational and economic form of business. There we identified problems, specific, prospects for the formation and development. It was investigated the features and structure of corporations , as a result of its membership of the integration processes . It was measured the economic and financial management aspects, which may be useful in the development and investment attractiveness of the corporation. The Corporation is a more complex business structure. Corporations have certain rights, privileges, and liabilities beyond those of an individual. Doing business as a corporation may yield tax or financial benefits, but these can be offset by other considerations, such as increased licensing fees or decreased personal control. Corporations may be formed for profit or nonprofit purposes. The author gives the aspects of each formation.
Keywords: corporation, organization of activities, organizational and economic form, form control, transaction costs
The properties of the water-soluble high-modulus silicate systems: based on alkali metal polysilicates called liquid glass and chain their transformation from lower to higher oligomers, with the subsequent formation of colloidal solutions - silica sol. The methods of preparation, properties and applications of water-soluble high-modulus silicate systems. The possibilities of their use as a binder and modifying agents for various nanostructured composite materials. The examples of promising areas of application of liquid glass and high modulus of aqueous solutions of silicates in construction and industry. In particular show the possibility of using liquid glass and aqueous solutions of silicates in the production of nanostructured silicate polymer. In space engineering for manufacturing water-destructed mandrels used in the manufacture of solid rocket motor casings and pressure vessels 'cocoon' of composite materials by winding. The application of the inorganic sol to obtain a nanocomposite ceramics and monolithic blocks of silicon oxide, which can be used in various fields of modern technology. The possibility of using silica sol as a binder for refractory ultra-lightweight shielding materials used to protect equipment from high impacts. The directions of development of the production of new acid-resistant materials and linings for protection of chemical equipment, parts and components operating in corrosive environments.
Keywords: Keywords: water glass, silicate polymer concrete, additives, silicates organic bases tetrafurfuriloksisilan, furfural alcohol, nanostructure composite materials, water-soluble silicates, silica sol, sol-gel transition, cured xerogel water-destructed mandr
The paper contains a description of a new method for automatic generation of maps of goods placement. Map of goods placement created by the author's search algorithm. The algorithm is based on ideas of evolutionary search. The proposed algorithm works with a population of constant size, allows not use complex search methods and for a reasonable time find a solution close to the optimum.
Keywords: simulation, evolutionary computation, multicriteria optimization, genetic algorithms
The analytical decision on definition of a forming wall of the bunker of the greatest capacity is provided in article among all bunkers having identical entrance and exhaust outlets. Such bunkers are intended for a hydraulic type of the expiration of bulk. They reduce a pulsation loose at its exit from the outlet and reduce extent of influence of the dynamic arches by account characteristics of the bunker.
Keywords: sliding lines, entrance openings, outlets, bunker, loose body, expense of the loose.