The development of a new generation of database management systems (DBMS) capable of supporting advanced applications has emerged as an important direction in DBMS research. Adequate modeling and efficient processing of complex objects have proven to be one of the most important issues in this context. Thus, object-oriented data models allowing for the manipulation of complex objects are propos...

In this paper we describe the architecture and the implementation of an application that was developed for the transmission of multimedia data, using the multicast mechanism, over the Internet. There are two major issues that have to be considered when designing and implementing such a service, the fairness and the adaptation schemes. The fairness problem results from the fact that receivers wi...

With the rapid advances of mobile computing and grid technology, it has increasingly the trend to offer a mobile computational grid environment. Mobile users usually use mobile agent to submit their computing requests to computational grids on the Internet. On the cases of multiple operations over single dataset, single operation over multiple dataset, or multiple operations over multiple datas...

In this paper we propose a novel methodology for supporting application mapping onto FPGAs with fault tolerance even if this feature is not supported by the target platform. For the purposes of this paper we incorporate three techniques for error correction. The introduced fault tolerance can be implemented either as a hardware modification, or through annotating the application’s HDL. Also, we...

Workspace analysis is one of the most important issues in the robotic parallel manipulator design. ‎However, ‎the unidirectional constraint imposed by cables causes this analysis more challenging in the cabledriven redundant parallel manipulators. Controllable workspace is one of the general workspace in the cabledriven redundant parallel manipulators due to the dependency on geometry parameter...

A system for supporting corneal suture for minimizing induced astigmatism, due to irregular manual stitches, has been designed. The system projects 48 light spots, from LEDs, displayed in a precise circle at the lachrymal film of the examined cornea. The displacement, the size and deformation of the reflected image of these light spots analysis providies the keratometry and the circularity of t...

A real time based computer-aided design breast cancer detection and decision supporting system is presented in this paper. The first objective is to develop an accurate detection system with real time database and biopsy result feedback. The second objective is to create a web-based real time clinical decision support system in order to provide a more accurate and efficient diagnosis platform. ...