In order to reduce the large transverse emittances of the positron beam, as well as the large energy spread, a radiation damping time of the order of 10 msec is required. By use of a specially designed " SNAKE "-wiggler with a field of 2 Tesla one can obta.in this short damping time at a beam energy of 100 MeV. Because of the strong bending field of the wiggler, the optics of the small model pr...

Results of a preliminary study to evaluate the feasibility of optical telemetry on an EM launched projectile are discussed. At issue are the relative intensities of the optical noise received in the MCL catch tank from the muzzle flash versus the narrowband optical signal levels generated from tiny emitters onboard a projectile after being launched in the MCL. Two narrowband optical signal emit...

We present and evaluate a NIC-based network intrusion detection system. Functions such as signature-based and anomaly-based packet classification are performed on the NIC, which has its own processor and memory. This makes the system virtually impossible to bypass or tamper with as can be the case with software-based systems that rely on the host operating system to function. We empirically eva...

In this paper we investigate the feasibility of iterative compilation in program optimisation. This technique enables compilers to deliver eecient code by searching for the best sequence of optimisations. In embedded systems, long compilation time can be aaorded since the application is an integral part of the shipped product. However, in practice search spaces may be extremely large. Our exper...

Small hopping robots have been proposed that offer the potential to greatly increase the reach of unmanned space exploration. Using hopping, bouncing, and rolling, a small spherical robot could access and explore subterranean areas, such as craters and caves, on distant planets. Hopping mobility allows the robot to overcome larger obstacles than conventional wheeled rovers. Bouncing and rolling...

A wearable, ambulatory impedance monitor (AIM) has been developed to permit impedance cardiographic measurements while patients and volunteers engage in normal daily activities. The AIM system was developed for use with a new hybrid tetrapolar spot-band electrode configuration and was designed to be comfortable and inconspicuous. The objective of the present study was to provide a preliminary e...

Natural organisms have a unique property not yet available in robotics, a self-healing (SH) ability. This powerful biological healing function has inspired chemists to impart similar properties to synthetic materials to create “self-healing materials”. Recent development in SH-polymers made us investigate the potential of using these materials in robotics, and more specifically in compliant act...