New upper bounds are given for the maximum number, 7m , of nonoverlapping unit spheres that can touch a unit sphere in n-dimensional Euclidean space, for n < 24. In particular it is shown that 78 = 240 and ~~~ = 196560. The problem of finding the maximum number, 7S , of billiard balls that can touch another billiard ball has a long and fascinating history (see [2]); the answer is known to be 12...

FOCUS ON EUROPEAN ECONOMIC INTEGRATION 2/08

Communication and information sharing during the response to a major incident on oil rigs have been identified as significantly influencing capability to control, manage, and limit the effect of the incident. This article reports on one of the few studies of information sharing during such incidents. Interviews drawing on the critical incident technique were conducted with offshore emergency re...

The use of HAPS/UAV to enhance telecommunication capabilities has been proposed as an effective solution to support hot spot communications in limited areas. To ensure communication capabilities even in case of emergency (earthquake, power blackout, chemical/nuclear disaster, terrorist attack), when terrestrial fixed and mobile infrastructures are damaged or become unavailable, the access to sa...

We present a formal approach to conception of a dedicated security infrastructure based on the exception handling in the protected agents. Securityrelated exceptions are identified and handled by a dedicated reflective layer of the protected agent, or delegated to specialized intrusion management agents in the system if the local reflective layer fails to address the problem. Incidents are hand...

VIDEO STABILIZATION AND TARGET LOCALIZATION USING FEATURE TRACKING WITH SMALL UAV VIDEO

This paper suggests a fast and stable Target Tracking system in collaborative control of UAV and UGV. Wi-Fi communication range is limited in collaborative control of UAV and UGV. Thus, to secure a stable communications, UAV and UGV have to be kept within a certain distance from each other. But existing method which uses UAV Vertical Camera to follow the motion of UGV is likely to lose a target...

In this paper, we consider the Grand Challenge under a very specific perspective: the enabling of application experts without programming knowledge to reliably model their business processes/applications in a fashion that allows for a subsequent automatic realization on a given platform. This goal, which aims at simplifying the tasks of the many at the cost of ambitious and laborious tasks for ...