The modeling and analysis of system and network performance issues are useful tools in the development and engineering processes. The analytical models have a high value in the early stages to uncover major performance problems which affect the design of the architecture before the cost of...

The paper starts with the discussion of the present way of teaching computer simulation and contrasts it with teaching the same subject with the help of multimedia instruments. The practical implementations of the main principles are demonstrated with the help of multimedia teaching materials,...

Selecting the best input values for the purpose of fitting a metamodel to the response of a computer code presents several issues. Classical designs for physical experiments (DoE) have been developed to deal with noisy responses, while general space filling designs, though being usually...

Piezoelectric ultrasonic motors are superior to electromagnetic micro motors, because their efficiency remains theoretically constant during miniaturization. However, the still relatively recent technology has a considerable unexploited optimisation potential. Numerical structural analysis by...

This paper deals with the use of Kriging metamodels in multi-objective engineering design optimization. The metamodel management issue to find the tradeoff between accuracy and efficiency is addressed. A comparative analysis of different strategies is conducted for a case study devoted to the...