A Picture Archiving and Communication System (PACS) will operate in a hospital and provide a totally digital environment for storing and retrieving medical images, diagnostic reports, and patient data [1]. Generally speaking, a PACS consists of a communication network and three types of network nodes: imaging equipment, viewing workstations and database archive system. Imaging equipment nodes a...

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Personal location data is stored as the result of using equipment that many people now own or have access to. Typically this data contains details of identity, location and the time the equipment was used. The data is usually stored in a central repository, held by the organisation owning the network or related equipment, and it is assumed that access controls are in place and privacy policies ...

The Internet and the ubiquitous presence of computing devices anywhere is generating a continuously growing amount of information. However, the information entropy is not uniform. It allows the use of data compression algorithms to reduce the demand for more powerful processors and larger data storage equipment. This paper presents an adaptive rule-driven device the adaptive automata as the dev...

Music has a long tradition of using electronic technology in performance – from early electronic instruments such as the Theremin, through to today’s plethora of digital devices. With rapid technological change, there is always the risk that important works using live electronics can be become un-performable over time, due to the lack of working equipment available, lack of the associated exper...

The vast amount of data generated by automated surface distress evaluation equipment far exceeds the storage capabilities of current digital data storage systems. A study using fractals is being carried out to alleviate the data storage problem, since fractal image compression offers the largest compression ratio of the available image compression algorithms. This paper discusses the use of fra...

Mobility of users, transmission of signals through open-air, the requirement of low power consumption by mobile users and smaller data storage area limitation in mobile equipment make mobile wireless networks more vulnerable to security threats like eavesdropping and unauthorized access. This paper proposes a new set of security protocols to enhance the access and data security features of GSM ...