The development and maintenance of satellite control software are very complex, mission-critical and cost-intensive tasks that require expertise from different domains. In order to adequately address these challenges, we propose to use visual views of the software to provide concise abstractions of the system from different perspectives. This paper introduces a visual language for process flow ...

RTFM (RFCs 2720-2724) considers network traffic as being made up of bidirectional flows, which are arbitrary groupings of packets defined only by attributes of their end-points. This paper extends RTFM’s view of traffic by adding two further concepts, streams and torrents. Streams are individual IP sessions (e.g. TCP or UDP) between ports on pairs of hosts, while a torrent refers to all traffic...

OBJECTIVES This study set out to design different types of total cavopulmonary connections (TCPC) with dual superior venae cavae (SVC), taking into account different sites for anastomosis from venae cavae to pulmonary arteries (PAs), and to compare haemodynamic features in these virtual operative designs. METHODS The geometries of bilateral bidirectional Glenn (BBDG) connection and inferior v...

A DC converter with the benefits of reverse power capability, less switching loss and wide voltage operation is presented implemented for input applications such as fuel cell energy, photovoltaic (PV) system wind power. Two full bridge resonant circuits are used in to achieve bidirectional flow capability reduce losses on active devices. To overcome variation problem energy PV solar panel, topo...

in emerging electric power systems, increased transactions often lead to the situations where the system no longer remains in secure operating region. the flexible ac transmission system (facts) controllers can play an important role in the power system security enhancement. however, due to high capital investment, it is necessary to locate these controllers optimally in the power system. facts...

Wave energy is nowadays one of the most promising renewable sources; however, wave technology has not reached fully-commercial stage, yet. One key aspect to achieve this goal identify an effective control strategy for each selected Energy Converter (WEC), in order extract maximum from waves, while respecting physical constraints device. Model Predictive Control (MPC) can inherently satisfy thes...