We study several problems of clearing subgraphs by mobile agents in digraphs. The agents can move only along directed walks of a digraph and, depending on the variant, their initial positions may be pre-specified. In general, for a given subset S of vertices of a digraph D and a positive integer k, the objective is to determine whether there is a subgraph H = (VH ,AH) of D such that (a) S ⊆ VH ...

This paper presents a novel control algorithm and visual measurement for the autonomous navigation of a non-holonomic robot team while preserving a specified formation. The control errors are defined relative to the leader robot of the team in terms of the actual position of each robot and its desired position in the formation. The stability analysis as well as a robustness analysis for the pro...

This paper studies the development and construction of “media integration” network platform based on mobile terminals in universities from aspects concept change team building higher education, order to provide modern ideas for education unused era.

creating an effective team environment is vital to succeed. more often than not there’s no opportunity for personality clashes, team members can’t be picky about which clients they prefer to deal with them. the present study is an empirical study consists of 60 samples out of 120 working employees to the tune of 50 per cent of the population. both the primary and secondary data collected using ...

In the paper, we present the architecture of Minuteman project called “Internet in the sky”. The basic goal of Minuteman project is to provide an efficient communication platform for autonomous agents systems funded by ONR. We address the main challenges of Internet in the sky architecture and introduce the key solutions. In particular, our solutions focus on team communications: intra/inter te...

The aim of this exploratory study was to determine the important features in content and usability of existing mobile applications evaluating environmental barriers and facilitators (EBF) to participation for persons with physical disabilities presenting mild communication or cognitive limitations. A rigorous process based on a user-centered design approach led to the identification of two rele...

This paper presents a team-theoretic approach to cooperative multirobot systems. The individual actions of the robots are controlled by the Belief-Desire-Intention model to endow the robots with the know-how needed to execute these actions deliberately. The cooperative behaviors between the heterogeneous robots are governed by the Team-Log theory to endow all the robots in the team with the kno...

In this paper we develop a framework based on disjunctive programming for motion planning of robotic networks. Although the methodology presented in this paper can be applied to general motion planning problems we focus on coordinating a team of mobile routers to maintain connectivity between a fixed base station and a mobile user within a walled environment. This connectivity management proble...

The problem of maintaining a wireless communication link between a fixed base station and an autonomous agent by means of a team of mobile robots is addressed in this work. Such problem can be of interest for search and rescue missions in post disaster scenario where the autonomous agent can be used for remote monitoring and first hand knowledge of the aftermath, while the mobile robots can be ...

Acknowledgments First of all, I would like to express my sincere gratitude to my supervisor, Professor Andreas Pitsillides, for his constant support all these years and for giving me the opportunity to participate in several interesting research projects and attend various international conferences. His help was valuable to finish this thesis work. I would also like to thank my fiancée and my f...