Wyniki wyszukiwania - BazTech

1

Realization of coordination technology of hierarchical systems in design of active magnetic bearings system

Miatliuk K., Mystkowski A.

Journal of Theoretical and Applied Mechanics

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2015

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Vol. 53 nr 3

711--722

EN

A cybernetic technology of mechatronic design of active magnetic bearings systems (AMB) originated from theory of systems is suggested in the paper. Traditional models of artificial intelligence and mathematics do not allow describing mechatronic systems being designed on all its levels in one common formal basis. They do not describe the systems structure (the set of dynamic subsystems with their interactions), their control units, and do not treat them as dynamic objects operating in some environment. They do not describe the environment structure either. Therefore, the coordination technology of hierarchical systems has been chosen as a theoretical means for realization of design and control. The theoretical basis of the given coordination technology is briefly considered. An example of technology realization in conceptual and detailed design of AMB system is also presented.

2

Using Domain Knowledge in Initial Stages of KDD : Optimization of Compound Object Processing

Szczuka M., Sosnowski Ł., Krasuski A., Kreński K.

Fundamenta Informaticae

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2014

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Vol. 129, nr 4

341--364

EN

We present a set of guidelines for improving quality and efficiency in initial steps of the KDD process by utilizing various kinds of domain knowledge. We discuss how such knowledge may be used to the advantage of system developer and what kinds of improvements can be achieved. We focus on systems that incorporate creation and processing of compound data objects within the RDBMS framework. These basic considerations are illustrated with several examples of implemented database solutions.

3

Application of sensitivity analysis for assessment of energy and environmental alternatives in the manufacture by using analytic hierarchy process

Ghorbannezhad P., Azizi M., Ray C., Yoo C., Ramazani O.

Environment Protection Engineering

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2013

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Vol. 39, nr 3

5--20

EN

Multi-criteria decision making (MCDM) was used to make comparative analysis of projects or heterogeneous measures for prioritization criteria and subcriteria simultaneously in a complex situation. The aim of this paper is to determine the alternatives and the sensitivity of main factors affecting water and energy consumption as well as environmental impact in a recycled paper manufacturing by using analytic hierarchy process (AHP). The AHP enables one to consider all the elements of decision process in a model, and to compare criteria and subcriteria of the model to find the best alternative. The AHP technique is applied through specific software package with user-friendly interfaces called Expert Choice. The results indicated that reduction of water consumption is the most important alternative for sustainable development in a recycled paper mill in Iran. Also, good housekeeping is the most sensitive criterion affecting the alternatives. The paper illustrates how the AHP method can help industrial management to overcome the energy usage and environmental impact in the manufacture.

4

Coordination Technology in Design of Biologically Inspired Robot

Miatliuk K.

Machine Dynamics Problems

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2009

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Vol. 33, No. 3

70-78

EN

The use of symbol construction and coordination technology of hierarchical systems with its standard block aed for the formal description of biologically inspired robot and its design process is considered. Aed includes aggregated dynamic and structural models of object being designed. Coordinator connects the models and performs the design and control tasks on its layers. First, theoretical basis of the technology is briefly discussed. Formal description of Bioloid robot and design of its assembling and motion processes are presented after that in the paper.

5

Periodic Coordination in Hierarchical Air Defence Systems

Arabas P., Malinowski K.

International Journal of Applied Mathematics and Computer Science

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2001

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Vol. 11, no 2

493-513

EN

The subject of this work is the defence planning of a point target against an air attack. The defence system is decomposed into a number of sectors. A direct method of coordination is used at the upper level, while the sectors use a discrete-time event-based model and the description of uncertainty by multiple scenarios of an attack. The resulting problems are solved using linear programming. A comparison of two coordination strategies for realistic attack scenarios and an analysis of effectiveness are provided.

6

The AltaRica formalism for describing concurrent systems

Arnold A., Point G., Griffault A., Rauzy A.

Fundamenta Informaticae

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1999

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Vol. 40, Nr 2,3

109-124

EN

The AltaRica formalism is designed for describing complex systems consisting of a number of interacting components. Its semantics is expressed in terms of transition systems so that a system described in this language can be analysed by any technique or tool applicable to transition systems. The components of a system have two kinds of interactions -event synchronisation, like in the synchronized product of transition systems of Arnold and Nivat, -interface coordination: with each component are associated interfaces whose values depend on the state of the component as well as on the values of interfaces of other components of the system. Another feature of AltaRica is the possibility of defining hierarchical systems: some subsystems can be encapsulated and their mutual interactions as well as their interactions with the rest of the system are supervised by a controller.