This paper investigates active real-time balancing of rigid rotors during the transient time of acceleration. First, the governing equation of motion of a rigid rotor is formulated. A parametric adaptive control scheme is then designed based on this dynamic model. An ordinary recursive least squares estimation method is used to estimate parameters in this adaptive control scheme. A supervisory ...

The design of a parallel implementation of the finite element software DOLFIN is described. To be able to handle large scale problems a new distributed mesh is developed. New distributed preand post processing routines are implemented in order to efficiently deal with the massive amount of data. New parallel mesh refinement algorithms are described and implemented. In order to obtain maximum pa...

The exponential growth of Internet traffic has made public servers increasingly vulnerable to unauthorized accesses and intrusions. In addition to maintaining low latency for the client, filtering unauthorized accesses has become one of the major concerns of a server maintainer. In this article we introduce the design and implementation of a load balancer that distinguishes between the traffic ...