Enhancing aircrew situational awareness has become recognized as a critical element in reduction of overall aircraft accident rates. Improved display concepts have been investigated for several decades as a means of enhancing awareness of position, flight path, and terrain in three dimensions. One of the most promising is the “Tunnel-in-the-Sky” primary flight display, which presents a three-di...

Recently, a moderate amount of work has been reported on the use of overlay networks to support value-added network services, such as multicasting, Quality of Service (QoS), security, etc. To design an overlay network, the first step is to choose an overlay topology connecting all the overlay service nodes. When considering overlay topologies, several questions need to be answered first: How ov...

In a heterogeneous wireless network, different wireless access technologies with different operating parameters coexists in an overlay fashion. These wireless networks are deployed in order to provide different type of services to Mobile Stations (MSs) equipped with multiple interfaces, based on the principle of Always Best Connected (ABC) network. In such a dynamic environment, an MS can seaml...

Overlay control is becoming increasingly more important with the scaling of technology. It has become even more critical and more challenging with the move toward multiple-patterning lithography, where overlay translates into CD variability. Design rules and overlay have strong interaction and can have a considerable impact on the design area, yield, and performance. We study this interaction a...

We discuss what kind of overlay topology should be proactively built before an overlay routing protocol enters a route search process on top of it. The basic overlay structures we study are the K-Nearest Neighbours overlay topologies, connecting every overlay node to its K nearest peers. We introduce a family of optimizations, based on a pruning rule. As flooding is a key component of many rout...

Overlay networks are emerging as a platform to enhance the core network routing functionality. They form a new network layer on top of the Internet and offer a whole range of network enhancements, such as extra resilience, QoS (Quality of Service) support and overlay multicasting. This paper discusses how an overlay network is used to provide an end-toend QoS enabled multicast network. It descr...

The increasing level of urbanization growth has created many environmental problems which threaten urban life in the most of developing countries. Many different spatial models are used world wide for urban facility site selection. The most common models such as fuzzy logic, regression, artificial neural network, index overlay and taxonomy which each has its advantages and weaknesses. Today urb...

This paper describes a method to approach area-patch problems in model generalization using fuzzy set theory. The area patch problem identifies problems in generalizing areas (polygons) with the same semantics (feature code) but varying geometry and spatial distribution. Area-patch generalization can be understood as a pattern recognition problem with a variety of viable solutions, constrained ...