The article deals with the problems of communication between the customer and the development team in the process of designing information systems. Based on the identified shortcomings of existing solutions, a conclusion is made about the need to develop a new approach and means of its implementation. The paper sets the task of developing a common model for the interaction of subjects using a single platform. The article describes the concept and modular architecture of the platform for implementing the system notation for designing architectural schemes. The modules of such a platform and its general functionality are considered.

Keywords: information system, life cycle, developer, end user, architectural scheme, basic abstraction, subject area, systems design

Effective reinforcement of the coating beam, by means of the construction of a framing frame around it, implies a reasonable choice of a construction from a range of rolled metal. The frame creates a single system with the coating beam by means of tension devices, the change of forces in which provides state control. In the article, a comparative analysis of moments in a frame made of an I-beam and a special steel channel, as having potentially equal performance characteristics, is proposed for a comparative study. The research was carried out on the basis of numerical modeling by the finite element method using the Etabs software product. The result of the experiment was the transverse forces and moments determined in the newly formed system – the coating beam plus the frame – from the applied loads and the percentage of reinforcement of the beam when taking into account the frame. The array of numbers obtained as a result of the numerical experiment was processed by digital mathematical analysis.

Keywords: reinforced concrete beam, I-beam reinforcement, channel reinforcement, moment, percentage of reinforcement, load, numerical method, mathematical model, comparison of results, Etabs and wxMaxima software packages

A model is proposed for selecting potentially interesting events for a person, in accordance with his requests and wishes, in order to achieve the goal of increasing the effectiveness of informing the population about cultural events of the city, and, as a result, improving the cultural level of society, Describes the implementation of the model in the form of a software product, which, with the help of intelligent data selection algorithms, allows you to simplify the process of searching for both potential cultural events that are interesting for a person, and new participants for their organizers. The criteria for selecting the event of interest and the process of selecting them in accordance with the degree of importance to the user are described. Formulas for calculating the final coefficients that serve as a numerical characteristic of the optimality of the event for a particular user are given. An example of the implementation of the proposed algorithm is given.

Keywords: intellectual search, selection criteria, cultural level, selection of events, forecasting

The essence of the proposed is the arrangement of the frame from the channel around the coating beam. At the same time, the frame elements can be subjected to controlled effects, in the form of overvoltage in them, which is realized by specially installed traction brackets. The study of the proposed structural and technological solution, implemented by a channel frame, was carried out using digital technologies based on numerical modeling. In the proposed calculation model, the beam reinforcement area was changed due to the introduction of a reinforcement frame. In the Etabs software package, using the finite element method, transverse forces and moments were calculated in the newly formed system - a beam plus a channel frame. The paper considers the issue of the influence of the frame on the transverse force in the beam. Using the technology of processing large arrays of numbers, a mathematical model of the process was obtained when the beam was reinforced with a channel frame. A consistent analysis of the mathematical model was carried out, which allowed to state the correctness of the decision and assign the design dimensions of the device and its technological parameters.

Keywords: reinforced concrete beam, reinforcement, channel, reinforcement, shear force, load, numerical method, mathematical modeling, numerical modeling, mathematical model, Etabs software package

This paper examines the effectiveness of the software framework developed by the authors for the task of  sonar information systems software design. This is done by a theoretical estimate based on the data obtained during the actual production process, as well as practical by rebuilding the software using the skeleton. Fixed a set of indicators on which to judge the complexity and evaluated there . Finally, an assessment of the results of the experiment and draw conclusions about the direction of further research.

Keywords: software design, sonar information systems framework, performance evaluation

We consider the improved design of the centrifugal oil filter with constant control of its cleaning power, allowing to change the technology system maintenance lubrication systems by separating operations replace crankcase oil filter and clean the rotor.

Keywords: centrifugal oil filter, technology maintenance, lubrication system

In the process of exploitation of the building there is a reduction of its operational reliability in accordance with the inevitable influence of several groups of factors. The two main groups, influencing the technical condition of the buildings was considered

Keywords: operational reliability; technical condition; engineering diagnostics

Information about authors of issue №4 (2013)

Keywords: authors

Information about authors of issue №4 (2011)

Keywords: authors