Self-stabilizing protocols must begin operating correctly even when started from an arbitrary state. The end-to-end problem is to ensure reliable message delivery across an unreliable network under the weakest possible guarantee from the network { that the sender and receiver are never separated by a cut of permanently failed links. In this paper we present the rst self-stabilizing end-to-end p...

The theory of constant mean curvature surfaces in Euclidean space has been the object of intensive study in the past years. In the case of complete noncompact constant mean curvature surfaces, the moduli space of such surfaces is now fairly well understood (at least in the genus 0 case) [13], [10], [11] and many technics have been developed to produce examples of such surfaces [8], [5], [14], [...

Unrestricted lattice random walks in which a unit conductor is placed along each bond traversed are considered. The mean end-to-end resistance is studied as a function of the number of steps in the walk and the spatial dimension. A critical scaling law is found whose exponent is consistently given by four different calculational schemes.

A system to convert digitized sheet music into a symbolic music representation is presented. A pragmatic approach is used that conceptualizes this primarily two-dimensional structural recognition problem as a one-dimensional one. The transparency of the implementation owes a great deal to its implementation in a dynamic, object-oriented language. This system is a part of a locally developed end...

As the field of remote imaging spectrometry grows, interest increases in applications that require the data be “corrected” to surface reflectance. However, the utility of the data for these applications will be limited by the accuracy to which the correction can be performed. Two approaches to atmospheric compensation are reviewed and applied to airbome spectrometer data to study their error ch...

There is a growing need to support voice communication in wireless sensor networks for use in emergency scenarios. In this paper we develop an end-to-end rescue communication voice gateway to provide a stable voice transmission over Bluetooth and Zigbee networks for mountain climber. The performance analyses, in terms of end-to-end throughput, packet loss rate, jitter and delay, show that our i...

In Multihop Wireless Networks, traffic forwarding capability of each node varies according to its level of contention. Each node can yield its channel access opportunity to its neighbouring nodes, so that all the nodes can evenly share the channel and have similar forwarding capability. In this manner the wireless channel is utilized effectively, which is achieved using Contention Window Adapta...