It is thought that magnetic fields must be present in the interiors of stars to resolve certain discrepancies between theory and observation (e.g. angular momentum transport), but such are difficult detect characterise. Asteroseismology a powerful technique for inferring internal structures by measuring their oscillation frequencies, succeeds particularly with evolved stars, owing mixed modes, ...

The quadrupole strength function of O is calculated making use of the SIII interaction, within the framework of continuum-RPA and taking into account collisions among the nucleons (doorway coupling). The centroid of the giant resonance is predicted at ≈ 14 MeV, that is much below the energy expected for both isoscalar and isovector quadrupole resonances in nuclei along the stability valley. Abo...

Rather than using special-purpose hardware routers, software routers enable routing on commodity platforms. However, even with faster processors and multi-core platforms, the performance of software routers on commodity platforms today does not scale with high speed. We identify the limitations of commodity platforms by comparing them to high-end routers. In high end routers, each line card has...

The requirement for advanced security equipment to scan data streams for malicious content at line rate presents significant challenges to network security vendors. Overwhelmed by the data rates of present-day networks, security equipment is more likely to miss attacks, leading to increased risk of security breaches. While high-speed content scanning, also known as deep packet inspection (DPI),...

Several fair queueing mechanisms based on stateless core (SCORE)/dynamic packet state (DPS) architecture have been proposed to address the scalability problem of stateful architectures. However, most of these mechanisms indiscriminatingly label every packet in edge routers while only a small fraction of the packets that come from fast flows will be dropped by core routers. Moreover, these mecha...

The Internet has seen a proliferation of specialized middlebox devices that carry out crucial network functionality such as load balancing, packet inspection or intrusion detection, amongst others. Traditionally, high performance network devices have been built on custom multi-core, specialized memory hierarchies, architectures which are well suited to packet processing. Recently, commodity PC ...