Software & Systems

Articles of journal № 1 at 2014 year.

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1. Методы e-learning и инновационного обучения с применением виртуальной реальности [№1 за 2014 год]
Authors: Nguyen Thanh Nghi, Phan The Hung
Visitors: 5304
В статье представлены принципы и анализируются методы создания приложений, использующихся в инновационном обучении, основанном на технологии виртуальной реальности, которая представляет собой техно-логию для создания воображаемого мира с применением трехмерной графики и компьютерного моделирования и используется в разных сферах. В последнее время образование стало одной из заметных сфер ее применения. Ис-пользование систем виртуальной реальности увеличивает эффективность процесса обучения. Это отражается в осоз-нании, понимании, обучаемости и превращении информации в знания. В работе исследуются различные подходы к созданию интерактивных материалов для обучения: VRML – язык программирования для обучения в сети Интернет и Virtual Studio – медийный инструмент для создания обучающей студии и среды, вовлекающих обучающихся ак-тивным и интерактивным способами. В статье также анализируется подход, называемый Edutainment (обучающие игры), сочетающий в себе методы традиционного обучения и индустрии развлечений, представляя прогрессивные тенденции из области текстовой среды для человеко-компьютерного интерфейса и подкрепляя эти результаты тех-нологиями из цифрового интерактивного повествования, смешивая реальность и мультимодальный интерфейс, и на-конец, представляет фундаментальный трехмерный игровой подход в сфере обучающих игр.

2. Management automation for the water supplying enterprise based on the process approach [№1 за 2014 год]
Authors: Vetrov A.N., Prokopchina S.V., Sheremetev S.A.
Visitors: 6276
Development of traditional information management systems of the enterprise constructed based on the pro-cess approach is considered. The disadvantages of existing information systems are underlined. For example, the interaction between subsystems is difficult; metrological quality control of decision-making is absent. A possibility of digesting numeri-cal, text, graphical and other information in one dataflow, as well as presenting integrated data in representative style for a decision-maker is missing. Information management systems based on the process approach allow having dynamical system structure with continuous learning the features of a complex object. They also can be made according to a unified methodol-ogy, consider different data types, their reliability degree. They can provide integration of data with different aspects, man-agement decision options; have metrological risk assessment for management decisions. The process approach represents company activities as process hierarchy, where lower level processes form higher level processes. An interaction between hi-erarchical processes is determined by regulations that consider data connections for each process. Enterprise management is considered as management of consecutive related processes. The article describes an experience of creating an information system for operating decisions making support in water supplying companies based on the process approach. “Infoanalitik” is a software complex used for this experiment. It allows integrating different dataflows and implementing methodology of regularizing Bayesian approach and Bayesian intelligent measurements. “Infoanalitik” can conjugate information dataflows when data is inaccurate or incomplete. It allows using this software complex to solve problems of monitoring, audit, modeling and controlling a complex object uder uncertainty. Tes t-ing the developed information system in “Infoanalitik” software complex shown its efficiency.

3. ALPHA-Synthesis– automated system for decision-making methods synthesis [№1 за 2014 год]
Authors: Butenko L.N., Oleynikov D.P.
Visitors: 10170
Problems of early-stage design are characterized by analysis of a large number of alternatives that have both quantitative and qualitative assessments. Existing decision-making methods can’t be used always due to the nature of alternatives assessments or environmental constraints. The authors have developed an approach for the synthesis of decision -making methods. And automated system (AS) Alpha-Synthesis has been developed to automate procedures of synthesis. The pro-posed approach needs a formalized description of decision-making methods; the model is presented in the article. The ap-proach for the synthesis consists of three steps. A linear structure of solutions is formed with a block-labyrinth morphologi-cally method at the first step of the approach. A linear solution is transformed into network structure in order to increase the “determinacy” at the second step of the approach. The synthesis of the network nodes is the third step of the approach. The result of the synthesis is the conceptual structure of decision-making method – the structure of the process of converting input data flow into output data flow. The automated system allows to structure decision-making methods, to keep their structured description, to synthesize new decision-making methods. Decision-making method "Verbal Pareto-Minimax criterion" is shown in this paper. This method differs from the well-known Мinimax criterion with verbal estimates, and it uses Pareto cri-terion at the first stage of the decision-making method.

4. Automated system for synthesis of physical principle of technical systems action [№1 за 2014 год]
Authors: Fomenkov S.A., Gopta E.A.
Visitors: 10692
The paper discusses and analyzes the existing methods for the synthesis of physical principle of technical sys-tems. The research has shown that practical using of existing methods for the synthesis of structures of physical action prin-ciple does not meet the needs of scientists and engineers fully. To mitigate identified drawbacks, more efficient and fast method to automate the synthesis of the physical principle of operation had been developed. It is based on the analysis of properties changes of the object of physical effects. The new compatibility conditions include analysis of physical effects compatibility according to impact, structure and objects phase, as well as the range of values of physical quantities. Based on proposed conditions of compatibility, automated synthesis system of the physical principle of action was developed. It allows increasing the quality of the technical decisions. The paper presents the architecture of an automated synthesis system and its database scheme. It also presents a variety of diagrams in UML notation, explaining the operation of the automated synthesis system of the physical principle of action.

5. Automated system of testing software in compiled form [№1 за 2014 год]
Authors: Palyukh B.V., Semenov N.A., Burdo G.B., Melnikova V.V.
Visitors: 6098
The article states that the essential condition of an extensive software use is ISO/IEC 00002 certification. It in-volves formal testing by specialists to ensure its compliance with standards and regulations. Testing is to be ensured by a specified quality of the assigned tasks results. The article points out that certification provides controlled program running with a finite set of data and its further analy-sis in order to detect errors. The analysis proves relevance of the following problem: software has to be tested in a compiled form. The authors propose the modified genetic algorithms as a tool for creating a finite set of data. The article presents a meth-odology (topology) of the initial data (ID) representation using software tools for engineering calculations. The topology in question can be reduced to representation of three types of variables: ID sets of real random type within a certain range, ID sets of positive integer type within a certain range, sets of logical (Boolean) variables. The authors suggest the initial data to-pology coding genotype as three chromosomes. An algorithm of the finite data sets generation is developed, with the data completeness criteria being established. The sequence and technique of software testing is described. The procedure-oriented (production) models to evaluate test results are given as examples. The article shows the advantage of this method compared to the current means of certification of compiled software.

6. Algorithms for synthesis of band-blocking filters on smooth inhomogeneous lines for CAD microwave devices [№1 за 2014 год]
Authors: Berdyshev R.V., Kordyukov R.Yu., Berdyshev V.P., Pomazuev O.N., Khripun S.I.
Visitors: 15730
he paper is devoted to the development of algorithms for the synthesis of small band-blocking filters on smooth inhomogeneous lines that allow determining their structure and parameters, calculating the level of attenuation, re-searching potential of the frequency characteristics and possibilities of practical implementations for using in specialized CAD microwave. The disadvantages of known CAD are presented. The base of the algorithms is a new approach to obtaining one lane locking in filters on smooth inhomogeneous lines. This differs from the known Kona approach calculating resonator filters with inverters. New approach applies only half-wave or quarter-wave segments of inhomogeneous lines that switched on in "the passage". Forming the required characteristics of the filter operating attenuation happens because of local refle c-tions arising from change of a wave resistance of open loop homogeneous line wh en changing the deduction of input re-sistance in one of the poles. Known methods involve using multiple-cavity structures with additional links. It is shown that the wave resistance oscillates for the value of the specified wave resistance with frequency o f two times bigger than the reso-nant frequency with a change deduction. The values of a wave resistance are proportional to the changes deduction magn i-tude and decrease with increasing the length to the specified wave resistance of the transmission line. T he analytical expres-sions for determination of the wave resistance law, a resistance matrix of inhomogeneous lines, the frequency characteristics of the filter with one bar of locking are recieved. An equivalent circuit line is determined. An algorithm for calculating the working attenuation is proposed. The results of mathematical modeling are presented. It is shown that using of the proposed algorithms allows expanding the range of base-building elements for band-blocking filters. It also can improve the functioning quality of existing and prospective specialized CAD microwaves.

7. Analysis of data collection using logic-set histogram representation [№1 за 2014 год]
Author: Papulin S.Yu.
Visitors: 9338
The article provides information about analysis of a data collection using logic-set histogram representation. This type of representation is based on using a histogram and a special mathematical system that allows implementing user queries as statements with logic and set operations. A result of the analysis is a quantitative value of presence of elements (designated in a query) in a data. Moreover, it’s possible to use a sample query to find quantitative values of similarity to an analyzed data. A collection is defined as a list of one-type data (for example, textual documents, images, video or others), which is made up of a universal set elements. Each element of a collection matches with its histogram representation. The paper considers paper two approaches of analysis of data collection using the logic-set histogram representation. Both of them are built on element-by-element analysis. As a result of analysis of a data collection, the author defines a list of quanti-tative values of presence for element queries and values of similarity for sample queries that can be arranged in an order con-venient to a computer user.

8. Analog modeling of electromagnetic fields based on electrotechnical devices [№1 за 2014 год]
Author: Vasileva O.V.
Visitors: 15568
The article is devoted to transforming the differential equations solving in private derivatives into well devel-oped investigative techniques for nonlinear dynamic systems. These systems allow comparing the equation in private deriva-tives with dynamic system to its subsequent modeling using electrotechnical devices, analog-digital complexes. The paper al-so considers modeling pictures of electromagnetic fields based on transients without false jumps at construction of equal cu r-rent lines. The novelty of the algorithm is in the reduction of differential equations in partial derivatives of Laplace and Pois-son to a dynamical system – the system of the first-order nonlinear differential equations on the basis of electrotechnical equivalent circuits. Solving system of the first-order nonlinear differential equations is carried out in the MATLAB-Simulink GUI environment, where the choice of parameters of input data block for implementing a complex of programs is offered to the user. It is for simplification and understanding of using given program. The block diagram of the dynamic system is created. It displays the dynamics of the process, where elements of the scheme are operational amplifiers. Those amplifiers are the base for comparison of the electrical equivalent circuit. The art i-cle gives examples of creating static electromagnetic fields in a phase plane.

9. Information-simulation modeling system architecture for IT-infrastructure life cycle support [№1 за 2014 год]
Author: Grishakov V.G.
Visitors: 16160
The article suggests the architecture of information-simulation modeling system for IT-infrastructure manage-ment support. Because of organization distribution, this modeling system can be used for management support in IT-departments. It is a base platform for development monitoring, estimation, decision support and management realization sys-tems. This modeling system supports unified hybrid IT-infrastructure model that includes several particular models: IT-infrastructure technical component model, a model of administration man agement tasks and goals, a model of IT knowledge domain. A unified hybrid IT-infrastructure model consists of informational and simulation models. Data from informational model is used for simulation model, its results in complementing informational model. A hybrid modeling system consists of informational and simulation modeling systems. The authors suggest using virtual system of hybrid modeling as a base pla t-form for IT-infrastructure modeling system development.

10. A library of components for mixed-signal ic in-circuit testing [№1 за 2014 год]
Authors: Efremov I.A., Mosin S.G., Kislyakov M.A.
Visitors: 12145
The structure and elements of library containing design for testability of structural solutions for analog and digital subcircuits is presented. The library is organized hierarchically using a tree structure. Components and testing subcircuits applied for analog and digital parts are functionally distinguished. The library contains behavioral, structural and physical models of testing subcircuits presented at register transfer level and circuit level in the form of hardware-oriented (easy synthesizable) behavioral descriptions, circuit diagrams, structural schemes and topologies. The components and testing subcircuits are described as design reusable IP-cores, allowing to use them at IC design in commercial CAD systems. The open modular architecture of the library provides the conditions for its expansion due to inclusion an additional testing subcircuits. The example of the library component description is shown.

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