Self-adaptive systems have the ability to autonomously reconfigure their structure in order to meet specific goals. Such systems often include a planning component, computing plans of reconfiguration steps. However, despite the fact that reconfigurations take time in reality, most planning approaches for self-adaptive systems are non-temporal. In this paper, we present a model-based approach to...

This paper presents a design method of self-tuning Quantitative Feedback Theory (QFT) by using improved deadbeat control algorithm. QFT is a technique to achieve robust control with pre-defined specifications whereas deadbeat is an algorithm that could bring the output to steady state with minimum step size. Nevertheless, usually there are large peaks in the deadbeat response. By integrating QF...

This paper propose a self adaptive penalty function for solving constrained value-bilevel programming problem using genetic algorithm. This self adaptive penalty function based genetic algorithm both used in the higher level and the lower level problem's solving process. In the constraint handing method, a new fitness value called distance value, in the normalized fitness-constraint violation s...

The assurance of real-time properties is prone to context variability. Providing such assurance at design time would require to check all the possible context and system variations or to predict which one will be actually used. Both cases are not viable in practice since there are too many possibilities to foresee. Moreover, the knowledge required to fully provide the assurance for self-adaptiv...

concrete bridge deck damage detection by measurement and monitoring variables related to vibration signatures is one of the main tasks of any bridge health monitoring system (bhms). generally damage puts some detectable/discoverable signs in the parameters of bridge vibration behavior. however, differences between frequency and mode shape before and after damage are not remarkable as vibration ...

According to the characters of abrupt change and gradual change, we put forward a self-adaptive method of shot boundary detection, which is based on neighbor frame difference and non-neighbor frame difference. By computing neighbor frame difference, this method can effectively detect abrupt changes. By computing non-neighbor frame difference, gradual changes can be effectively detected. Integra...

This paper describes the verification of the recently developed space-angle self-adaptive algorithm for the finite element-spherical harmonics method via the Method of Manufactured Solutions. This method provides a simple, yet robust way for verifying the theoretical properties of the adaptive algorithm and interfaces very well with the underlying second-order, even-parity trasnport formulation...

Urban transportation is a complex phenomenon. Since many agents are constantly interacting in parallel, it is difficult to predict the future state of a transportation system. Because of this, optimization techniques tend to give obsolete solutions, as the problem changes before it can be optimized. An alternative lies in seeking adaptive solutions. This adaptation can be achieved with self-org...

in this study, an extended stress-based forming limit diagram (fld) for prediction of necking based on the marciniak and kucznski (m-k) model is represented and applied in tube hydroforming. the bulge forming of a straight tube is simulated by finite element method and verified with published experimental data. this adaptive simulation technique is based on the ability to detect the onset and g...