Excursion to Egham, Surrey

Holloway – University of London Egham , Surrey TW 20

We present a practical interactive conference key distribution system based on public keys, which is ‘proven’ secure provided the Diffie-Hellman problem is intractable. The system authenticates the users and allows them to compute their own conference key. A certain number of interactions is required, but the number of rounds is independent of the number of conference users. All users involved ...

Surrey County Council

How many extant pinniped species remain to be described?

How many extant pinniped species remain to be described? Michael A. Woodley a , Darren Naish b & Hugh P. Shanahan c a School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK b School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth, PO1 3QL, UK c Department of Computer Science, Royal Holloway, University of London, Egham, Surrey,...

Brownian penalisations related to excursion lengths, VII

Limiting laws, as t →∞, for Brownian motion penalised by the longest length of excursions up to t , or up to the last zero before t , or again, up to the first zero after t , are shown to exist, and are characterized. Résumé. Il est prouvé que les lois limites, lorsque t → ∞, du mouvement brownien pénalisé par la plus grande longueur des excursions jusqu’en t , ou bien jusqu’au dernier zéro ava...

The new Surrey ion beam analysis facility

We present the characteristics of an ion beam analysis facility based on a fully computer controlled 2 MV Tandetron commissioned in 2002. The terminal voltage temperature stability is measured using the 3036 keV O(a; a)O resonance. A microbeam beamline with an Oxford triplet lens and a coolable sample holder has been built. We report new temperature dependent time-resolved IBIC measurements fro...