Considered clean water in swimming pools, on nonionic and anionic surfactants with special adsorbents. Water purification pools plavatelnyx unique, first of all, because the water contains various types of pollution, which it is exposed. Most of these contaminants are introduced by the users of the swimming pool and they have to be removed or destroyed (bacteria, viruses, organic, sweat, hair, makeup, etc.). Treatment of swimming pool water is much more complicated because of the need to carry out her many times, than drinking water treatment, which is carried out one-time. Based on these studies, given technological solution to improve the efficiency of purification of circulating water in swimming pools, ensuring high environmental and economic performance of water treatment.
Keywords: recycling of water, swimming pools, surface-active agents (surfactants), azotoammoniynye organic compounds (AOC), a rapid method of analysis
Studied mobility planar four-link mechanism of the manipulator in a predetermined area of the workspace. A method for determining the maximum rates for selected destinations for the mechanisms of manipulators with motor redundancy.
Keywords: own properties mechanisms manipulators, mobility manipulators, robots for the synthesis of movement velocity vector
Now the technical condition of residential buildings 60s buildings has reached a high degree of wear when you want to repair their mass implementation of energy rehabilitation of housing and upgrading. This scientific article describes the organizational and technological features of the energy rehabilitation of housing built in the 60s of XX century. The article describes the main types of series of houses built in the period of their technical features of buildings energy efficiency class of buildings. A model of information resource and technological ensuring energy rehabilitation of housing, on the basis of which the selection of energy-efficient solutions of residential buildings at the pre-stage reconstruction or repair. The major elements of this system are the blocks of economic and technical evaluation of design decisions on the basis of which is determined by the most effective ones.
Keywords: organizational and technological support, the organization of repairs, energy conservation, energy efficiency
The results of experimental studies to determine the optimum frequency of rotation of the drum and the optimum ratios of the mechanical gear Electromechanical actuator gravity mixers. Recommendations on the use of different types of actuators depending on the scope of use of the machines.
Keywords: "gravity concrete mixer, Electromechanical actuator, modular design, experiment, mixing drum rotational speed, induction motor, reducer "
The possibility in principle of using pulp and paper industry waste as a binder for pelletization flotation potassium chloride bases on conducted researches. Defined technical conditions of pelletization flotation potassium chloride using pulp and paper industry’s waste as binder provide product with good commercial qualities, which are yield of marketable fraction (85.71 %) and resistance of granule (29.51 N). The researches for studying conditions of baking were conducted and subsisted defects on granule surfaces. There are two kinds of defects. One of them is inner defect is represented as caverns and flaws. Another type of defects are outer defects. They are represented as crystallized structural arrangements in the form of coreless tube that has net structure and includes fiber and cubic shaped microcrystals. Granule defects form after baking them with temperature higher than 120ºC.
Keywords: flotation potassium chloride; pulp and paper wastes; adhesive; commodity characteristics of fertilizers, defects granules
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
The dependence of allowing to determine the optimal mode of reducing speed when approaching trains to areas with restrictions to ensure maximum road conditions on the average speed. The presented method will accelerate and refine the calculations in modeling the movement of logging trucks.
Keywords: timber transport, traction calculations, traffic simulation, indicators movement, restrictions, braking
In article reviewed advanced theoretical probability models of process quality formation quality of the surface layer in a centrifugal rotary process (CSO) details. Process CSO reviewed from the point of view reliability. Based on the results of theoretical studies were proposed the dependence of the influence of the main technological parameters centrifugal rotary finishing and strengthening treatment on the roughness of the processed surface, the depth of the hardened layer and the degree of hardening. Analysis of the technology processes CSO let to identify the factors exerting a dominant influence on the productivity and quality of processing. Conducted calculations of the influence the tolerances of the main quality parameters of the surface layer and technology modes centrifugal rotary processing of centrifugal rotary treatment on the magnitude of the coefficients offset instantaneous dispersion and stock accuracy which characterize the reliability of technological processes centrifugal rotary process. By results of calculations were constructed charts. Taking the presented methodology you can choose such a combination in choosing technological processes centrifugal rotary processing what will ensure the required quality of the workpiece.
Keywords: Reliability technology process, centrifugal rotary process, coefficients offset instantaneous dispersion, the roughness surface, the degree of hardening.
In the article the problem of determining the nominal size of real particles of grain materials, which significantly affect the technological parameters of the hoppers and their design parameters. Are specific correction factors for sredenegeometricheskogo razsmera nektoryh ubiquitous forms particles loose body.
Keywords: Bunker, nominal diameter, bulk body shape factor of particles geometric average particle size
The article shows the effectiveness of university cooperation with industrial plants in the context of joint complex projects implementation, and gives the results of patent-informational search of engineering solutions directed to the effective solid radioactive waste processing
Keywords: nuclear industry, complex project, patent, radioactive waste, university
The brief review of patents vectored to the increase of louvre gate in valve’s impermeability is given. The reasons of insufficient impermeability are analyzed and the main technical solutions on its increase are defined
Keywords: impermeability, shut-off pipeline valve, gate, operational indexes
the article shows that recycling is being paid more and more attention in Russia and abroad, as the important factor of resource saving and solutions of ecological problem. It’s mentioned that despite the realized research and certain implementation experience, a lot of problems is still not solved. Special attention’s drawn to the acuteness of the problem of production and consumption waste recycling, the search and implementation of new sci-tech, business and also legislative solutions in this field
Keywords: nuclear energy, production waste, recycling, solid radioactive waste, ecology.
Symmetry of single-walled carbon nanotubes is analyzed using the parent phase approach. Transfer of the planar hexagonal order of graphene sheet onto surfaces of chiral and achiral nanotubes is divided into two steps. At the first step the rotational symmetry of graphene is reduced. In addition, the reflection symmetry is vanished for chiral nanotubes. At the second step the resulting subgroup symmetry is mapped in homomorphical way onto the symmetry group of the single-walled nanotube.
Keywords: crystalline symmetry, group theory, parent phase, single-walled carbon nanotubes, graphene
The paper presents the results of computational statistical experiment to estimate field radiation exposure on the soft tissue of the human body when external pressures are nondivergent narrow beam of gamma photon radiation. As an example, adopted the energy of a photon that enters 102 group energy axis constant laboratory ABBN. Given dose distribution in a cylinder diameter of 20 and a length of 10 centimeters. The method of statistical tests, known as Monte Carlo. Is used modify of the method with calculation the inverse functions. It is shown that the dose outside the beam ionization radiation load decreases by two orders, remains finite, that should be considered in therapeutic procedures, in which the total dose exceeds the lethal dose for a healthy bod
Keywords: gamma therapy, model analysis, Monte Carlo, radiation dose
In this article is reviewed the nature of organic hybrid nanocomposites. Promising directions in the field of organic hybrid nanocomposite materials will be methods for the synthesis of multicomponent materials, as well as the type of "net net" and "host-guest". The fundamental problem with the chemistry and physics of nanocomposites is dependent "structure-property". Solving this problem will move from research materials to their purposeful design.
Keywords: nanocomposite sol-gel technology, synthesis, nanoparticles.