The accessibility of the World Wide Web and its flexibility for conveying digital information in various forms makes it a convenient mode of communication for education. In this paper with the help of a distance learning application called “Easy Ed,” we demonstrate how these properties of the World Wide Web along with a data model can be used to provide a classroom environment on the Internet. ...

| We present an eecient implementation of a recently known index for text databases, when the database is stored on secondary storage devices such as magnetic or optical disks. The implementation is built on top of a new and simple index for texts called pat array (or suux array). Considering that text searching in a large database spends most of the time accessing external storage devices, we ...

In this paper four different photopolymers are compared on the basis of their suitability for holographic data storage. The optical recording parameters of these photopolymers were directly determined using the zero spatial frequency limit. The behavior of cover plated and uncover plated material layers was analyzed. Once the main parameters were determined, we proposed a novel model to simulat...

Using tape or optical devices for scale-out storage is one option for storing a vast amount of data. However, it is impossible or almost impossible to rewrite data with such devices. Thus, scale-out storage using such devices cannot use standard data-distribution algorithms because they rewrite data for moving between servers constituting the scale-out storage when the server configuration is c...

The University Grants Committee and the Computer Board have funded 139 projects in Bntish Umversities as part of their Computers in Teaching Initiative. Two projects have been accepted m archaeology, a joint Southampton/York project on simulating an excavation and an mvestigation at Leicester into the use of interactive videodiscs for teaching archaeology to undergraduates. This paper introduce...

Optical networking technologies have been over the last two decades reshaping the entire telecom infrastructure networks around the world. As network bandwidth requirements increase, optical communication and networking technologies have been moving from their telecom origin into the enterprise. For example, today in data centers, all storage area networking is based on fiber interconnects with...

This paper presents performance analysis of an adaptive Volterra/Hybrid equalizer in a nonlinear magneto-optic data storage channel. In a data storage system, nonlinear intersymbol interference (ISI) is one of the limiting factors for high storage density. Volterra and Hybrid (combination of linear and Volterra) equalizers are proposed and developed for compensation of nonlinear ISI. The use of...

This paper presents performance analysis of an adaptive Volterra/Hybrid equalizer in a nonlinear magneto-optic data storage channel. In a data storage system, nonlinear intersymbol interference (ISI) is one of the limiting factors for high storage density. Volterra and Hybrid (combination of linear and Volterra) equalizers are proposed and developed for compensation of nonlinear ISI. The use of...

In communication networks that span large geographical regions, transfer of bulk data is often costly and hard to manage. One prominent reason for bandwidth contention among long-lasting flows, between short-lived ones on inter-datacenter links. Delaying the off-peak hours by temporarily storing at edge network can help reduce during peak hours, improve overall utilization utility. Although ext...