Unmanned helicopters (UH) can avoid radar detection by flying at ultra-low altitudes; thus, they have been widely used in the battlefield. The flight safety of UH is seriously affected moving obstacles such as flocks birds low airspace. Therefore, an algorithm that plan a safe path to urgently needed. Due strong randomness movement bird flocks, existing planning algorithms are incompetent for t...

the main purpose of this research is the presentation of some prerequisites of educational theorizing with regard to ontologic components of complexity paradigm. for this purpose, by using the philosophical methods, after making mention of how ontologic components of simplicity paradigm (naive realism, linear causation, determinism) influence contemporary educational theories, ontologic compone...

With the invention of MPLS, complex traÆc engineering and multipath packet forwarding has become a reality. To use multipath packet forwarding, eÆcient load control between paths is necessary. Furthermore, dynamic load control is needed to optimize load mapping between paths depending on the network state. Unfortunately, distributed dynamic load control algorithms, if not carefully designed, ca...

In this paper we introduce the design, implementation and evaluation of the Dynamic Visualization Toolkit (DyVT) to support complex dynamic social network visualization. Dynamic aspects of social networks such as spatiotemporal as well as personalized information can be visualized in a common toolkit. To that end, an XML-based target language DyVTML is an extension of existing schemata enabling...

A model for probabilistic assessment of excavation performance of tunnel projects is presented. The model is based on Dynamic Bayesian Networks (DBN) and enables to consider the quality of the design and construction process. It is applied on a case study, the excavation of a road tunnel by means of the New Austrian Tunnelling Method. The influence of main model parameters and assumptions (e.g....

State estimation is the foundation of any control and decision making in power networks. The first requirement for a secure network is a precise and safe state estimator in order to make decisions based on accurate knowledge of the network status. This paper introduces a new estimator which is able to detect bad data with few calculations without need for repetitions and estimation residual cal...