The process of sylvinite ores desliming with ultrasonic treatment is considered. The influence of frequency, intensity and duration of impact to the insoluble rest removal efficiency of sylvinite ores crystals is defined. The optimum mode of sylvinite ores desliming with ultrasonic treatment is established.

Keywords: desliming, desliming degree, sylvinite ore, ultrasonic treatment, insoluble rest

In article the refined method of calculation gamma  percentage fatigue resource of an arrow shovel excavator for population of final volume, by means analytical method of definition parameters of Weibull distribution is offered. 
The made computing experiment has shown that the developed method allows to receive gamma percentage value of a fatigue resource of an arrow shovel excavator by means of transition from the sample data to the population data.  

Keywords: a resource, an arrow, shovel excavator, population, Weibull

Provides information about the strength of the concrete, the size of the cross section of experienced beams, the options of their reinforcing and strengthening with various types of composite materials. Provides a scheme of testing with short-term load  

Keywords: Steel, concrete, reinforced concrete, strengthening, anchors, span , percentage of steel and composite reinforcement, load, failure

The paper shows the feasibility of using a current amplifier in the filters RF and microwave ranges. By analyzing the basic structure of the second-order level sufficient conditions for the efficient use of active elements. The examples of methodological nature and formulated conclusions of practical importance.

Keywords: RF filter, microwave filter, parametric sensitivity, current amplifiers, functional modeline setting

  The TV analyzer aerosols, which yields in the three projections basic geometric and optical parameters of controlled particle needed to determine whether a controlled amount of pollen that causes allergies. An example of the recognition process by using MatLab, which allows real-time data about the shape, size and color of plants on pollen ragweed pollen sample. The opportunity to further develop a portable television diagnostic analyzers based on DSP-processors that identify the presence of plant allergens in the air, and thus to evaluate the potential risk of diseases such as hay fever.

Keywords: TV analysis, pollen, image recognition, digital image processing, MatLab, LabView

One of the problems when storing large amounts of data is a rational choice of media. In this paper we evaluated the possibility of using magnetic tape, CD, DVD, Blu-ray discs, hard disk drives, drives to flash memory (SSD) for storage of large volumes of data with respect to reliability, performance,.cost and high-speed storage. The analysis showed that solid state drives can be used in case of the need for ultra-fast access to live data. The hard disk drive can be used as primary storage devices for storing operational data. DVD and Blu-ray library can be used for archival storage medium volumes (tens of terabytes). Tape libraries can be used to store very large volumes of data (terabytes or more). The lowest cost of storing 1 GB of data is $ 0.03 when you use tape libraries. The most expensive storage 1 GB solid state drive ($ 0.85).

Keywords: storage devices, data storage, storage drive

Considered original interpolation method of the working tool path using confluent two-unit manipulator. This method is based on the separation of the links on the master and slave and the use of polar coordinates to determine the incremental rotation of angle units. It is adapted for use calculating hardware with floating point.

Keywords: two-tier mechanism, circular interpolation, the kinematic model, floating point operations, the static accuracy of interpolation

The description of electrodynamic model of the receiver of ultrasonic radiation on the basis of a piezoelectric is presented. Modelling was conducted with use of a method of electrodynamic analogies. The given method allows to apply an accessible arsenal of computational methods of electric circuits as analogues of the composite dynamic systems which class systems of monitoring of waterpipes concern.

Keywords: acoustics, the control, piezoelectric transducer, the water pipeline.

  The article contains the current and future implementation of urban policy in the efficient use of land resources based on consideration environmental area in evaluating the value of land. The focus is on evaluating the effect environmental factors on the market price of land plots for individual housing construction based on a statistical method (regression analysis). As a result, the weight estimates were significant factors. They showed that some of the factors which characterize the environment on the territory a land plot or in its immediate surroundings are important at this stage of development of land relations in Russia and the price of land for individual housing construction respond to such important conditions, such as soil and proximity to areas of recreation. 

Keywords: environmental factors, land valuation, regression analysis

The values  the frequencies of the stretching vibrations of anions  SCN-,  NO2-, NO3-, CℓO4- in molten salts of alkali metals and their point group symmetry. There is a correlation with an increase in the frequency of symmetry  

Keywords: Raman Spectra; anions; molten solts; group symmetry.

The resolving equations for the calculation of the stability of polymer compressed rods with the creep using Galerkin method are obtained. The problem is solved in the case of a simply supported pivotally-rod having an initial bending in the plane of the lower stiffness, and in the case of off-center application of force. Galerkin method used in combination with the finite element method, that is the shape functions are taken as the basis functions . The solution is made numerically, using the software package Matlab. There are two variants considered: a variant of the rod with constant and variable in length stiffness. It is shown that for rods with variable cross-sections and the same mass, a critical time has increased by almost 4.5 times. The solution for the rods of constant cross section agrees well with the solutions obtained by the method of finite differences. This may indicate the reliability of the proposed method  

Keywords: polymer rod, creep, Galerkin method, stability, variable stiffness

The main models of DNA computing are self-assembly of DNA and RDNA. Disadvantages of these models are low speed perform arithmetic operations, the high probability of errors of computing, and perform the calculation with only fixed-point numbers. In article is represented method of encoding numbers by DNA strands. Numbers can be encoded by any base initially. This method does not require to translate the number into a binary number system. Each number is encoded by digit with the DNA. As compared with known methods, the proposed method uses a shorter length of DNA strands. The proposed method can increase speed encoding of numbers, improve the accuracy of the calculations and to reduce errors in the formation of the encoded data. In article is represented also the operations to perform arithmetic operations. The use of the proposed method of encoding numbers and proposed operations over DNA allows to increase speed of computation, and perform calculations not only with fixed-point numbers and floating-point numbers.

Keywords: encoding of numbers, DNA strands, operations with the DNA-chain, DNA computing

We propose a relatively simple algorithm for the approximate calculation of the inductance per unit length of twisted pair, based on the principle of the geometric distances of its cross-section. Confirmed the efficiency of the algorithm and the high accuracy of the results. A comparative analysis of the mutual inductance per unit length of a long line with the mutual inductance per unit length of the twisted pair.

Keywords: mutual inductance per unit length, a long line, twisted pair

Proposed an approach to calculate the inductance per unit length of twisted pair at microwave frequencies. Analytical relations to calculate the inductance per unit length of double line and twisted pair at microwave frequencies. An efficient algorithm for the approximate calculation of the inductance per unit length of twisted pair at any veins angle.

Keywords: inductance per unit length, microwave frequency, twisted pair, double line, veins angle

Most of web pages of the Web are inaccessible for the blind users. And the main reason is a lack of the semantics at the source code (technical) level of web pages and absence of the navigational components. In this work we propose a new web page representation---multiaxial navigation model---representing web documents in the form convinient for the blind users. Moreover, we present methodology for the navigation on the model proposed, that ensure an efficiency of user mobility. Automatic transformation of a web page into the multiaxial navigation model and navigation means are realized in the Blindzilla prototype. An efficiency of the proposed concepts is proven experimentally regarding contemporary screen readers, such as JAWS, Window-Eyes, and Fire Vox.

Keywords: web accessibility, navigation, web page, web technologies