An engine system comprises a fuel processor that is supplied with air and a fuel stream to produce a hydrogen-containing gas stream. A new flow is not admitted if it is determined that the flow would push the utilization of available bandwidth reserved for the traffic type on a link in the associated path beyond a predetermined threshold. The method further comprises converting said obtained indicators, by use of at least one mapping function, into a set of parameters suitable for use as input parameters to a parametric video quality estimation model. The clip arms have between their first and second ends sections configured to cross each other. The method includes generating a further AP rating value as a function of the initial AP rating value and a predetermined preference list of operating bands. Upon a request to use software on the device, the authorization key is decrypted using a public key corresponding to the private key.