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Date submitted2013-08-16
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Date accepted2013-10-26
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Date published2014-07-15
Multicriteria decision making based on marginal criteria concessions and rates of substitution
- Authors:
- G. I. Ankudinov
- I. G. Ankudinov
To obtain weight coefficients for a linear convolution of partial criteria, expert evaluation of rates of substitution is proposed. The notion of rate of substitution is less subjective and more straightforward than that of «normalized indicator weight». The drawback of linear convolutions, ubiquitous in scalarization of vector criteria, is their lack of sensitivity to the deviation of vectors under comparison from some reference (target) vector. Power Weighted Mean (PWM) scalarization procedure, named harmonization, encourages approach to the ratio of indicators of a target vector as well as improvement of separate components of vector criterion. To obtain the parameters of a PWM, experts evaluate every indicator’s marginal concession. The later is defined as the greatest deviation of the indicator towards deterioration from its target value, which can be compensated for the account of ideal values of all other indicators. The possibility to realize convolution in the form of a PWM, providing at the same time the set rates of substitution for the target vector, the set marginal concession for the indicator with the greatest weight and acceptable values of marginal concessions for other indicators, is shown. Examples of forming an integral criterion of performance excellence for blooms, slabs, and bigots manufacturing processes are presented.
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Date submitted2013-08-27
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Date accepted2013-10-14
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Date published2014-07-15
Combinatorial synthesis of flexible flowsheets for ore enrichment
- Authors:
- G. I. Ankudinov
- I. G. Ankudinov
Application of logical-combinatorial approach for enumeration and synthesis of flexible ore enrichment flowsheets is considered. The set of possible enrichment flowsheets is represented at first implicitly as the superstructure generalizing knowledge of the area of synthesis. For creation of flexible ore enrichment flowsheets such flowsheets have to have the optimum level of redundancy allowing quickly to recustomize them according to economic feasibility. Algorithms for generation of flowsheets with different level of redundancy are offered.
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Date submitted2013-08-27
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Date accepted2013-10-21
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Date published2014-07-15
Classification of the finite algebra concepts for the description of neural network elements
- Authors:
- I. V. Ivanova
Contemporary information systems are characterized not only by the large volume of data stored, but also by its complexity. This complexity manifests in various interconnections this data holds. Thus, complex data is presented as a set of some basic items and a body of connections linking the data items. Complex information systems are formalized with the concepts of graph, mograph and, lately, neural network. Classification of the finite algebra concepts, such as correspondence and relation (ternary or binary), is examined. Specific kinds of relations and their properties are intended to use for the description of neural network elements.
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Date submitted2013-08-22
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Date accepted2013-10-01
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Date published2014-07-15
Staged conceptual model analysis of heat mode electronic modules automated control systems metallurgical production
- Authors:
- I. V. Ivanova
- P. V. Pashkin
An approach to the construction of a model to calculate, analyze and predict the thermal conditions of electronic modules of automated process control systems at different levels of hierarchy, with different density layout and working in conditions determined by a managed object. The requirements to the thermal models of individual modules.
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Date submitted2013-08-29
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Date accepted2013-10-04
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Date published2014-07-15
Analysis model of thermal modes of controller groups of automatic control system alloy electrolyze
- Authors:
- I. V. Ivanova
- P. V. Pashkin
A mathematical model using a phased concept of modeling thermal conditions, which enables the evaluation of thermal parameters of the electronic modules of the automatic control aluminum electrolysis cells, based on a limited set of source data.
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Date submitted2013-08-20
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Date accepted2013-10-17
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Date published2014-07-15
Method of identifying models of electronic equipment failure of automation control of dynamic systems
- Authors:
- A. A. Klavdiev
- O. V. Afanaseva
In the article the effective non-parametric method to identify patterns of failures of electronic equipment automation of dynamic systems. The essence of the offered method is that on the small selections presented in the form of a variation row, practically always it is possible to find such transformation as a result of which the statistics which isn't depending on parameters of distribution of population will turn out. It is advisable to define function of distribution of such statistics as a result of statistical modeling if analytical construction it is complicated.
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Date submitted2013-08-12
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Date accepted2013-10-12
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Date published2014-07-15
Research approaches for assessing the quality of complex engineering systems at various stages of development
- Authors:
- S. V. Kolesnichenko
The problem of justification of methods and algorithms for rapid assessment of the quality of complex engineering systems at various stages of the life cycle. The problems generalize several well-known methods to assess the quality (technical level) and economic analysis models of equipment. Adapt the proposed scientific and methodological apparatus using real samples of engineering specifications.
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Date submitted2013-08-27
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Date accepted2013-10-07
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Date published2014-07-15
The choice of data relations storing in informational systems
- Authors:
- M. V. Kopeikin
- V. V. Spiridonov
- E. O. Shumova
Storing and processing data of mineral resources usually imply large amounts of data. So increasing data search operation speed is the subject of a notable interest. User of any relational data base, as a rule, imagines it as a set of normalized relations (tables). These tables, at the physical level, can be represented in the different ways. The paper is dedicated to the analysis and comparison of cortege (traditional) and domain (transposed) ways of storing data relations.
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Date submitted2013-08-12
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Date accepted2013-10-27
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Date published2014-07-15
Representation and processing of knowledge in information automated systems of intelligent field
- Authors:
- E. B. Mazakov
Effective management in the oil and gas industry is associated with an increased degree of automation, the further improvement of the information systems and technologies in the frame-work of the concept of «intelligent field». Complexity of construction of automated intelligent information systems associated with the working out of models of representation and processing of incomplete knowledge (data). We consider an approach to the construction of a knowledge base using category theory, axiomatic formal theories and the topological Boolean algebra. The possibility to handle fuzzy information and implement the logical conclusion in the framework of the formal deductive systems.
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Date submitted2013-08-06
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Date accepted2013-10-26
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Date published2014-07-15
A method of structuring the conflict interaction organizational and technical systems
- Authors:
- L. E. Mistrov
- D. A. Pervukhin
- Yu. V. Ilyushin
We propose a method of structuring the conflict interaction of organizational and technical systems in the market conditions for the use of a certain type (type) of the resource. The method is based on the methods of structuring and formalization of conflict interaction space through the introduction of hierarchical equivalence classes of nuclear interaction and relationship preferences on the set of states of the conflict of the «competition» and «cooperation».
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Date submitted2013-08-25
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Date accepted2013-10-17
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Date published2014-07-15
Organization of project offices
- Authors:
- V. Ya. Pashkin
- N. L. Pashkina
Article is devoted to the project office functions and organization of its work effectively in the management of a portfolio of projects. Technology provides a communication environment to work on projects in a network mode. Authors formulate the criteria for the allocation of resources between the projects and the criteria for evaluating the effectiveness of project portfolio management.
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Date submitted2013-08-15
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Date accepted2013-10-06
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Date published2014-07-15
An approach to the environmental assessment of territorial complexes
- Authors:
- V. N. Sibirev
- N. V. Racheva
In the developed and civilized society economic activities constantly expand and evolve. Territories reserved for ongoing or planned activities require a comprehensive assessment to keep the environment sustainable. Mathematical models based on computer technologies allow us to conduct a forecast assessment of the territorial complexes environment.
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Date submitted2013-08-02
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Date accepted2013-10-11
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Date published2014-07-15
Analytical method for determining the parameters transmarginal deformation ore for bump hazard assessment for ore deposits at great depths when using room-and-pillar system
- Authors:
- D. V. Sidorov
The analitic method for calculating the parameters of the transmarginal deformation ore with the wide range of geological and mining- technical factors. Shows a graph of transmarginal deformation ore main varieties of bauxite ore from excavation size, depth and capacity of the ore deposit in the application for room-and -pillar system with compliant interchamber pillars on deep horizons of JSC «Sevuralboksitruda».