European Journal of Technology and Design

164-168

Authors: Farshad Farahbod, Hasan Abedi

Performance of a closed solar desalination pond, which is jointed to photovoltaic cell for producing sweet water from effluent saline water of refinery industry, is studied in this paper. Also, capability of photovoltaic cells to generate electricity is reported due to insolation rate during a year. Highest and lowest amounts of fresh water are reported to present design parameters of solar pond capacity.

173-175

Authors: Timofey A. Kasatkin

There was carried out the comparative analysis of the aerodynamic calculation methods S.N. Khramov, N.F. Krasnov, A.A. Lebedev and L.S. Chernobrovkin. Shown that the example of the ARROW's standard form technique by S.N. Khramov gives overestimated results due to accounting double bottom resistance in the range of M = 0.1...0.9 and techniques of N.F. Krasnov considering compressibility and without compressibility flow yielded nearly the same result.

184-188

Authors: Mikhail P. Rodygin

On the work there was formulate a mathematical model of the pneumatic plant for crush-tests of rocket's shell rings. There was produced a numerical experiment, that can a possibility for optimization of the plant's parameters.

108-122

Authors: Bijesh Paul, Jayadas. N.H.

The objective of this paper is to develop a demand forecast model for a short life baked product. The initial forecast is obtained by using exponential smoothing and the error corresponding to each day is estimated for this forecast. A control chart is plotted for these errors after determining its upper control limit and lower control limit. A generalized Markov algorithm is applied to these errors and the demand of different states are determined. The demand corresponding to the state with maximum probability is taken as optimal demand. The obtained results can act as a basis for better planning of demand of short life baked products in India.

135-146

Authors: Konstantin N. Makarov, Nikolay K. Makarov

Currently, the Russian born a promising new development of recreational resources of coastal zones (the Black Sea coast of the Caucasus, the Baltic coast, large reservoirs and others) – the creation of artificial territories directly into the sea at a distance from the shore in the form of artificial island complexes (AIC). However, a number of preliminary designs is frankly utopian character, obviously not possible to implement the conditions, in particular, the Black Sea coast of Russia. At the same time, already has some experience of the real design AIC for this coast. The article discusses the problems and prospects of scientific justification and design of artificial islands, as well as their legal status.

153-160

Authors: Victor Ya. Tsvetkov, Artem S. Maslov

The article analyzes the concept: the information space, information field, information environment. The article shows that the information space may be natural and artificial. It is shown that the information field is substantial and procedural object and open space properties. The article shows that the information environment is associated with a certain object for which it is the environment, and for which it is viewed. This allows you to define the information environment as a subset of the information space. It determines its passive description. Information environment can also be defined as a subset of the information field. This corresponds to the description of its active.

64-72

Authors: Botakoz R. Kasimova. Askar A. Baubek. Darkhan Y. Baxultanov

The paper considers the operation of electrical filter with settling electrode. To improve the operation efficiency, settling electrode is executed in the form of continuously rotating endless belt. The mathematical model of electrical filter with rotatory settling electrode is performed. The virtual model of electrical filter was made in Blender program. It will enable to visualize the process of the settlement of the particles, charged from the corona-forming plates to settle them at the electrode.

81-85

Authors: Nicholas V. Mitiukov. Yulia V. Ganzy. Elena L. Busygina

Traditionally, on the initial design stage of rocket and artillery systems are used simplified analytical techniques for the aerodynamic calculations with the adjustment of the drag-function standard for form factor or the calculation with using algebraic formulas proposed by Dorodnitsin, Krasnov and etc. However, these techniques, adapted for ranges of transonic and supersonic speeds, are give unreasonably low accuracy for the subsonic range. We have studied the possibility of using existing software packages for example, ANSYS CFX to the modeling of aerodynamics differential equations in partial derivatives in finite difference form. On the test case – the American standard form ARROW shown that the calculations in ANSYS CFX were generally in line with those ARROW using the theory of turbulence k-ε. The discrepancy at M < 0.4 is extremely small and does not exceed one percent. In the range of M = 0.4...1.0 discrepancy increases, but also does not exceed 5...10%, due to the need to select other add-ons ANSYS to calculate the wave resistance. For comparison, the function cx (M) is calculated on the existing analytical dependencies. Error calculation increases of M and reaches several hundred percent! Probably, this effect is associated with problems of application for the low-velocity of Dorodnitsin's formula for calculating resistance.

92-104

Authors: Victor Ya. Tsvetkov 2 Vasiliy T. Matchin

The article conducts a survey of the information resources features, describes the properties of information resources and reveals their content, defines application and types of information resources, reveals legal and regulatory support of the system of state information resources management, discloses different types of resources, shows organizational aspects of information resources management. The technology of information resources management is described.

4-17

Authors: Nurul Nadia Omar Bakri, Md Azree Othuman Mydin

Building defect is one of the major components of building problems that significantly needed attention. When a building fails to function as it should, we must immediately seek for the determination. Is the problem taking place as the result of the worker’s failure to assemble it properly? Is it involving the nature of it? Is the proper maintenance of the building not been performed as it should have been? The answers often depend upon a number of factors: the age of the affected building components, the exact nature of the problem, the presence or absence of human error, or some combination of all those three. This paper will review and discuss some of the major building defects happen throughout the world. It contains some of the main concepts and the definition of the terminological terms used. In addition, the causes, symptoms and remedial work of defect also been discussed in this paper.

23-43

Authors: V.I. Grafutin, O.V. Ilyukhina, E.P. Prokop'ev, V.A. Ilyukhin, Yu.V. Funtikov

The article presents the data of the study of vessel steel, used in acting pressurized-water reactors–440. The studied steel patterns had vacancy deffects, also caused by neutron irradiation. The sizes of the defects were detected. The article proves that the method of positron annihilation spectroscopy is one of the most efficient methods in detecting the size of nanoobjects (vacancies, vacancies cluster), independent volume of reed marks, cavities, hollows, their concentrations and chemical compositions at the site of positron annihilation in defect materials.

49-60

Authors: Lev V. Utkin, Yulia A. Zhuk, Ivan A. Selikhovkin

Most models of aggregating expert judgments assume that there is some precise probability distribution characterizing the system behavior and expert information allows us to compute parameters of this distribution. However, judgments elicited from experts are usually imprecise and unreliable due to the limited precision of human assessments, and any assumption concerning a certain distribution in combination with imprecision of judgments may lead to incorrect results. To take into account the imprecision and unreliability of judgments, a model of combining and processing the expert judgments about quantiles of an unknown probability distribution is proposed in this paper. Many results are obtained in the explicit form and are very simple from the computational point of view. Numerical examples illustrate the proposed models.