Polytope complexes are the generalisation of polygon meshes in geoinformation systems (GIS) to arbitrary dimension, and a natural concept for accessing spatio-temporal information. Complexes of each dimension have a straightforward dimension-independent database representation called Relational Complex. Accordingly, complex overlay is the corresponding generalisation of map overlay in GIS to ar...

We report the fabrication of a distributed Bragg reflector (DBR) on a silver ion-exchanged glass waveguide with a patterned overlay of sputter-deposited amorphous silicon (a-Si). Using this high-refractive-index overlay DBR technology, we demonstrate a fully functional glass-integrated optic add-drop multiplexer (OADM). The OADM consists of a Mach-Zehnder interferometer (MZI) containing overlay...

Overlay networks are a technique whereby application developers create virtual customized networks on top of physical networks. Recent implementations of peer-to-peer applications such as file sharing and VoIP have increasingly meant that overlay networks have almost become ubiquitous. As a result, future overlay networks will increasingly coexist on the same node. A number of middleware framew...

In this paper we optimize the back-to-front overlay of Through Silicon Via (TSV) patterning for a 5μm via last process. After TSV patterning, overlay verification poses a challenge because the reference layer is buried underneath the thinned silicon wafer. For both back-to-front alignment and verification a wafer stepper equipped with a Dual Side Alignment (DSA) system is used. The stepper has ...

Meares-Irlen Syndrome is characterised by visual stress (visual discomfort) and visual perceptual distortions that can be alleviated by individually prescribed coloured filters. The benefit from coloured filters can be demonstrated with the Wilkins Rate of Reading Test (WRRT). Previous research using individually prescribed coloured overlays (sheets of plastic placed on a page) found that betwe...

OVERLAY MULTICAST FOR REAL-TIME DISTRIBUTED SIMULATION This report provides a top-level architecture for an overlay multicast service in support of distributed real-time virtual simulations over an open network environment. The top-level architecture for the overlay protocol was developed based on key concepts identified in the laboratory performance studies, the analytical model, and the studi...