This paper presents the results of a research on dispersion of water spray of centrifugal spray nozzle. The values of average droplet size are defined and compared with the known one calculated before. There were made graphics of drops dispersed distribution and graphics where the experimental and calculated values for the arithmetic mean and median mass diameter. The obtained data allow to recommend the calculated dependencies for the assessment of medium-sized drops in the spray of centrifugal-jet spray nozzle.

The paper presents the results of experiments on the visualization of the temperature fields and development of convective flows in the process of non-stationary conductive heating of the cell wall which includes a layer of filled balls placed into the liquid. The authors developed the calculation method for modeling of the process of warming up of cells and the development of convection under various boundary conditions.

The paper presents an experimental research on hydrodynamics of floating free gas shells in inclined pipes with granular nozzle in the systems gas-liquid and gas-liquid-solid particles. Working substances were water and ethanol. It is shown that the speed of ascent, depending on the angle, has nonmonotonic character and maximums of speeds, when adding a solid phase, shift in the direction of large angles of the handset relative to the horizon.

The paper is based on a system approach which helps to develop a model of multiple centrifugal-extrusion granulator. The process of flow non-Newtonian environment is shown and the reological characteristics of it are introduced through «power» law of Ostvald - de Wil in a rotating converged curvilinear channel.

The paper considers the motion of a solid spherical particle in a two-layer film of non-Newtonian fluid flowing through the inner surface of the centrifugal cone nozzle during the process of the application of film-forming coatings on granular materials.

The paper presents the problem of heat generation of artificial light sources (LEDs) during cultivation light-dependent organisms. The practical research on this issue is made on the example of the cultivation of the green microalgae Chlorella sp.

The author considers resource limitations that arise under intensive development of renewable energy and, in particular, on the basis of solar photovoltaic power generation. The prospects of photovoltaic devices based on silicon solar cells with vertical p-n junctions are shown in this article.

The work based on the experimental research of the effect of heat exchange with granular nozzle and phase slip in vapor-liquid mixture allowed to specify the features of the equilibrium velocity of sound in a three-phase system “vapor-liquid-solid particles”. This theoretical model of the equilibrium speed at non-adiabatical conditions found experimental evidence. There are given the results of analytical solution of the problem of periodic thermal influence on the elements of the granular layer.

The paper provides an overview of photocolorimetric method of air analysis and the classification and analysis of photocolorimetric gas analyzers according to the type of sensitive element, the description of their advantages and disadvantages. The operating principle of tape photocolorimetric gas analyzer is considered. There are offered a variety of possible technical solutions to improve photocolorimetric gas analyzers.

The article describes the possibility of approximation of static characteristics of the optical-absorption gas analyzer by fractional power function.

The paper presents methods of intensification of the processes of crystallization during cryogranulation. The calculations of the block length of the machine for cryogranulation are made. There are researched the destinations of front changing boiling regimes from the damped film to decaying bubble.

The paper presents the results of experimental research of aerodynamic structure of the gas flow inside a centrifugal separator. There is established the influence of a degree of spin flow at the inlet on the relative irregularity of the flow in height and cross-section of the unit.

The paper describes the selection of optimal operating conditions of amperometric detector work for determination of water-soluble antioxidants, modernization of the instrument for analysis of fat-soluble antioxidants. The authors developed the design of the layout of the first domestic universal multi-purpose portable liquid chromatograph. This allowed for the first time to measure the total content of antioxidants in meat, fish and dairy products; expand the data content of antioxidants by adding sections: spices and seasonings, meat, fish and dairy products; to examine the question of the optimal balance in the human diet of water - and fat-soluble antioxidants.

The analysis on the possibility of using pulse width modulation to control the amplitude noise on the example of the contact conductivity meter is made. There were built various models measuring cell of the device and simulated the effects of amplitude noise on the measurement.

The laser-spark-premium method for determination of heavy metals in urban soils is considered in the paper. Optimal hardware parameters and formulation of the soil samples for heavy metals were found. There have been developed the algorithm and MPT which allowed to increase the number of determined TM in one sample, and to expand the range of measurement and reduce the detection limit.

The paper investigates the influence of constant and periodic lighting fluorescent lamps in the range from 0 to 9 500 Lux for the growth of biomass of culture Phaffia rhodozyma and synthesis of astaxanthin at periodic cultivation in the bioreactor. It is established that with the light of 7500 Lux periodic mode of action of light allows culture to synthesize the same astaxanthin as with a constant illumination. It is shown that the constant exposure to the light of 7500 Lux leads to a greater increase in the phase lag of the biosynthesis of astaxanthin and biomass growth than periodic light.

The article presents a study of the effects of aeration by mechanical mixing of the process of biodegradation of hydrocarbons in the soil. Different variants of mixing devices and modes of mixing are proposed.

The article considers the process of cleaning air from toxic organic compounds in the biofilter. A new type of combined nozzles and results of experimental study of its work is presented. Recommendations for use of the combined space in the biofilters are offered.

In this article results of an experimental study of cylindrical cavity resonator with a thin layer of humidity on the lower end wall are presented. Analysis of the known methods was carried out using simulation by finite element method in the system ANSYS. The practical application of research results could be a detection of precipitated water in aviation kerosene.

The paper describes the methods of processing components of distillery bards for fermentation media (and the growth of carbohydrate). There are presented the results of experiments on cultivation in these environments yeast of Phaffia type, the producer of the Supreme carotenoids of astaxanthin

Gum Arabic (GA) is a unique polysaccharide which has excellent emulsifying and encapsulating properties. GA is very widely used in food and non-food industry. Emulsive stability depends on concentration, temperature as well as on homogenization time. Thus the priority task of this research work is to improve the quality of final products by getting stable emulsions under the conditions that allow to vary the time of homogenization.

The author describes the features of stationary temperature distribution of molten polymer in the non-newton rectangular channel single screw extruder caused by thermal interaction in paper.

The purpose of this research was the selection of the optimal filtering medium for pressure removal of dissolved iron filters of water conditioning plant. The increase of plant capacity by raising the filtration rate leads to the increase in the pressure drop and reduction the duration of filtration cycle. The aforesaid issue was the cause of studying alternative filtering medium of quartz sand.

The computer quality management system for the chemical anti-icing materials (AIM) was developed based on the CALS concept. There were carried out researches for the most perspective AIM for the most important quality indicators. Also there was made the estimation of aggression of influence for AIM on constructional materials (steel and concrete).

The authors developed an expert system for selection the analytical equipment and method of analysis of high purity substances (by the example of the assortment of organic solvents). Knowledge bases are developed on the basis of information CALS-technologies and structured by application spheres, analyzed substances, indicators of quality, methods of analysis and analytic devices. In its turn, the knowledge base on the analytical devices is structured in 4 main clusters of quality indicators: the content of the base substance, metal cations, anions and suspended particles.

The possibilities of practical application of high-intensity ultrasound in conjunction with other physical and chemical methods for cleaning oil-contaminated wastewater. In the course of experimental studies there was found a significant increase in the degree of purification using pre ultrasonic activation reagent. The authors analyzed the mechanism of the obtained effect with respect to a high alumosilitic flocculant - coagulant.

The article considers the modernization of existing technological schemes. The authors present experimental data on separation of salt solution by electro-membrane method. The variants of combined schemes of treatment of water systems are considered as well.

In this article the authors consider dielectric permittivity of aqueous solutions. The experimental study and calculations of the microwave oven of dielectric properties were executed. The conclusions about structural and kinetic changes of water were determined on the example of tetromethylcarbamid solutions.

The article considers the immobilization possibility of mycelium Trametes hirsuta 56 on organic and inorganic carriers in dynamic and static modes. The authors searched the influence of used carriers on the synthesis of the extracellular enzyme.

The article discusses the main methods for organization of modeling objects of nanoscale level. There are performed the researches and developed the method of engineering calculation of the process of compaction of granular formulations in geometrically complex die.

The effects of vacuum-evaporation with convective counter flow of air for water cooling are considered in the article. There was performed a comparison with the method of cooling water in the cooling towers. The benefits of the method are revealed. The block-schema of the experimental stand is presented as well as the analytical analysis. Analytical and experimental results are presented in graph form.

In this article there are stated the method and algorithm of numerical analysis of the intense-deformed condition of expansion joint bellows with its realization in the form of software. There is given an example of the calculation and the optimum design of the expansion joint bellows.

This article describes the method and algorithm of the computer analysis of the kinetics of elastic deformation, the bearing capacity and the working life of tubular structures operating under repeated thermomechanical effects.

This paper covers the derivation of engineering formulas in the State Standard Specification 14249-89 for the calculation of elliptical bottoms under uniform internal pressure, their numerical modeling of the stress-strain state by the finite element method and the comparative evaluation of the safety factor adopted in the State Standard Specification 14249-89 with the results of the experiment.

This paper describes a software Polymer designed to calculate heating power and heating time of a die mold in start-up mode.

This article describes the structure and the basic principles of the software product to automate the calculation of double-flow heat exchangers for liquid and gaseous substances.

In the article there are presented the results of the numerical data calculation of the basic thermodynamic variables such as dependence of the thermodynamic potentials from the temperature and pressure, and the geometric characteristics of the dynamics like the center of mass of trial particle. The dynamics is described by a simple Euler discretization of family of vector fields arising in the Bogdanov-Takens bifurcation.

Environmental degradation in large cities is a factor that provokes the dysfunction of autonomic regulation. Nitrogen oxide and carbon monoxide have a leading role, they have intermittent mode of action. The author examined the types of vegetation to ensure the physical, emotional and intellectual activities and deals with how to correct violations.

The authors consider mathematical models of one-dimensional and two-dimensional problems of freezing of dispersed particles in a cryogenic liquid.

The authors carried out a number of experiments on the influence of the chemical nature and composition of polymer blends based on recycled packaging materials (such as polyolefins and waste of the packaging "TetraPak"), temperature and other parameters of their co-processing with some dispersed fillers on the physical, chemical and physico-mechanical properties of the compounds. The resulting samples of composites based on packaging waste, were studied for the absorption of oil. An optimum volume ratio of oil and sorbent was obtained. There are discussed possible applications of new low-cost sorbents.

The problems of oily soils recycling by extracting hydrocarbons to produce engine fuels are considered in this article.

The article considers the problems of searching optimal allocation points for oily soils recycling works taking into account the oil-producing region infrastructure and roads.

The authors suggest the methodology of the evaluation of a leakage of a liquid under pressure of the jet as well as gravity filtration. There are obtained the expressions relating the flow rate of filtered fluid through the ground to the size of accumulating “lens” accumulated under a tank. The authors obtained also the calculation results of the intensity of infiltration of oil from damaged tanks in soils with different characteristics.

In the article the authors show the possibility of spontaneous combustion of microbiological products at storage. There is presented the methodology of calculation of spontaneous combustion conditions of the stored inventory. The authors suggest the algorithms to determine safe conditions for storing. The basic directions of activities for the prevention of spontaneous combustion in the microbiological at utility facilities are also presented.

The authors developed the technique, allowing to calculate the induction period of thermal spontaneous combustion of deposits having unbalanced heat exchange. Using it, it is possible to determine the thickness of the fire-prone and fire-resistant deposits on the surface of various technological equipment and the time to spontaneous combustion deposits in the given conditions.

There is described a set of devices and universal algorithm of sample preparation of environmental components for the identification of hazardous chemicals.

In the paper there were foundanalytical expressionsfor the calculation ofthe linear approximation inmeasurement of geographical coordinates errorestimatesandthe correlation matrix ofpoints on thesurface of the Earthaccording to theone-coordinateof bearing.The algorithm of recursive refinement of coordinates in the process of obtaining new measurements is proposed.

In this article the possibility of analytical calculation of kinematic parameters of thehinged laddermechanisms of the 2-nd class and 2-nd order with the use of analytical geometrybasis in the plane and differential calculus is considered.Derived analytical dependences for determination of the linear and angular velocities and accelerations points and links of six-linkedlever mechanism.Examples of graphs, obtained with the use of the calculation of the mathematical programs MathCad 14 are introduced.

The paper considers the possibility of analytical determination of multi-linked lever mechanism’s reaction of the 2-nd class and 2-nd order on the basis of kinetostatics. There were derived analytical dependences for determination of the reactions ofsix-linked lever mechanism kinematic pairs. Examples of graphs, obtained with the use of the calculation of the mathematical programs MathCad 14 are provided.

The expert system was developed. It allows to obtain information about the usefulness of the field, to choose the best method of processing natural gas and associated gas directly in places of extraction, which isespecially very important.