A swarm of robots is composed of several small and simple robots that can communicate to perform complex tasks. Those robots are subject to failures: battery outage, hardware destruction, or hardware failure. When a robot fails, its whole state is lost. The task realized by this robot needs to be restarted then the swarm might need some data from the failed robot. Even when this data is not nee...

In this paper, a model is presented to locate ambulances, considering backup facility (to increase reliability) and the restriction of ambulance capacity. This model is designed for emergencies. In this model the covered demand for each demand point depends on the number of coverage times and the amount of demand. The demand amount and ambulance coverage radius are considered...

Original scientific paper Location problems consider locating facilities with the objective of finding their best locations. In most real world problems, it is common that a demand node is required to be covered with multiple facilities in order to ensure a backup supply. The backup supply is necessary especially for public or emergency service location problems where a covered demand may not b...

This paper addresses the need for content sharing and backup in household equipped with a home gateway that stores, tags and manages the data collected by the home users. Our solution leverages the interaction between remote gateways in a social way, i.e., by exploiting the users’ social networking information, so that backup recipients are those gateways whose users are most likely to be inter...

Since IEC 61850 became the widely used standard for substation communication with a lot of implementations testing is an important issue. Edition 2 is available since 2012 and offers a wide range of possibilities and sophisticated details. Due to the huge amount of prospects and different places where testing can be located and marked systematization might be helpful and will presented as an in...

Introduction The use of vectorless test techniques for detecting and isolating process related circuit board faults for IC devices has become widely accepted as the method of first choice because of their cost savings. However, for high fault coverage, most vectorless techniques must be supplemented with expensive functional test methods. A vectorless test technique has been developed that uses...

The energy consumption and energy efficiency of mobile telecommunication networks are crucial factors for the sustainability of this industry. This paper targets the reduction of the energy consumption at a Base Station level through the adoption of sleep modes during the off-peak periods of the day and relying in the existence of co-located and overlaid frequency bands to provide the coverage ...