Traditional real-time scheduling algorithms typically assume that deadlines of tasks do not change with time. Task deadlines in many real-time command, control and communication applications change over time. Deadlines of some tasks in these applications depend on the states of the objects monitored and controlled by the applications. Because the states of the objects change with time, the dead...

Best-effort CPU scheduling is an attractive model for desktop computing because it is simple to use. However, best-effort models do not provide support for applications with deadlines. Soft real-time schedulers allocate the CPU for workloads containing soft deadlines by relying on developers and users to supply timing requirements to the system. BEST is an enhanced best-effort scheduler designe...

In a real-time system, tasks are constrained by global end-to-end deadlines. In order to cater for high task schedulability, these deadlines must be distributed over component subtasks in an intelligent way. Existing methods for automatic distribution of end-to-end deadlines are all based on the assumption that task assignments are entirely known beforehand. This assumption is not necessarily v...

We study a transportation problem where two heavy-duty trucks travel across the national highway from separate origins to destinations, subject individual deadline constraints. Our objective is minimize their total fuel consumption by jointly optimizing path planning, speed and platooning configuration. Such two-truck pervasive in practice yet challenging solve due hard constraints enormous con...

We introduce a real-time design methodology for large scale, distributed, parallel architecture, real-time systems (LDPARTS) that approaches system scheduling analysis in a way different from those methods that use a scalar metric of urgency such as found in rate (or deadline) monotonic theories. The latter assume the place for scheduling prioritization to be at the functional level of run-time...

BACKGROUND This study examines whether social age deadlines exist for childbearing in women and men, how they vary across countries, whether they are lower than actual biological deadlines and whether they are associated with childbearing at later ages and the availability of assisted reproduction techniques (ARTs). METHODS This study is based on the European Social Survey, Round 3 (2006-2007...