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This paper is focused on two major problems within the ceramics industry. The reproduction of a desired color from pigments (which is time-intensive), and the correction of colors on the production line (which is costly) are processes which still rely heavily on numerous experiments carried out by human operators. This study presents the key aspects of these two processes and suggests some mathematical...
European countries start rising the standards regarding the energy performance of buildings by adopting the European Commission's directives with the purpose of driving change in the building sector and promoting a low carbon economy. The energy performance of buildings and the related costs with energy can be reduced from the design phase, by choosing high quality and energy performant materials...
A simple but versatile approach to robust control design for linear systems with system and exogenous disturbances is proposed. The proposed approach is based on the technique of linear matrix inequalities and the concept of invariant ellipsoids. The approach is easily implemented computationally, its efficacy is demonstrated on the benchmark example of the F-16 aircraft model.
A new linear weighting method and a calibration technique tested comparatively to the proposed linear method and to inverse distance weighting method are analyzed. The proposed methods are tested for temperature estimation in inter weather stations regions, with cumulative minimum deviations from the real values. The analysis reveals that for some weather stations configurations, with certain statistical...
The currently used hardware validation architectures for Application Specific Integrated Circuits intended for automotive Engine Control Unit development are reviewed and a new architecture is proposed. An alternative to hardware validation by different simulation architectures is proposed and analyzed.
The quality of source code is an important stake for the construction of software. The source code quality facilitates the maintenance and the evolution of the program. In the object-oriented paradigm, a modular system is easy to maintain thanks to its components with strong cohesion and weak or low coupling. Weak coupling is among the key factor to reduce the cost and the deadline of the system developing...
The purpose of his paper is to offer a numerical strategy in order to control the thermal processes with distributed parameters. Designing the control system for processes of this kind is usually difficult, mostly because of their non-standard dynamic model representation. Using energy balance equations for the process-a heat exchanger, the model is obtained. The proposed solution is to design a polynomial...
Dual methods can handle easily complicated constraints in convex problems, but they have typically slow (sublinear) convergence rate in an average primal point, even when the original problem has smooth strongly convex objective function. Primal projected gradient-based methods achieve linear convergence for constrained, smooth and strongly convex optimization, but it is difficult to implement them,...
The paper deals with the optimal energy control referring to an electrical servo drive system. The influence of the variable torque is considered. The optimal controller is established for the discrete case. A convenient algorithm for the studied problem is indicated and some simulation results illustrate the behaviour of the system.
The paper deals with linear-quadratic optimal control problems the performance index of which contains small parameters of two different orders of smallness at quadratic forms with respect to a control. Such problems can be considered as a result of applying the convolution method to problems with three performance indices where the cost of one cheap control is negligible compared with another one...
This work presents a potential field-based control approach for multi-agent dynamical systems in a multi-obstacle environment. A strong focus is put on solving the collision avoidance (either with obstacles or other agents) problem, which is essential for any multi-agent control strategy. In here we discuss potential field constructions which are used for penalizing in the cost the collision avoidance...
The business environment is changing day by day, and the technologies are evolving. The problem of adapting the e-metrology application is the starting point for this article. Technology evolution is now a useful platform for us as developers of this application, CRT, so its adaptation has to be made in accordance with everything new and helps the business to perform its tasks as easily as possible,...
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