Object-oriented techniques have been along the last decade one of the most useful programming paradigms. However, for distributed embedded systems the semantic gap between the object-orientation layer and the underlying infrastructure is extremely large. This gap can be narrowed, should the embedded system platform provide semantically rich communication and management services. This paper outl...

Though the There is ever increasing evidence of increased terrorist activities that spread entire world. In the wake of modern technologies and diversified threats, it is indispensable to comprehend, detect and prevent with reliable countermeasures. In this context detection of explosives is an active research area. Towards this end many detection systems came into existence. The government age...

With the rapid growth in popularity of wireless data services and the increasing demand for wireless connectivity, Wireless Local Area Networks (WLANs) have become more widespread and are making their way into commercial and public areas being almost everywhere including business, office and home deployments. WLANs based on the IEEE 802.11 standards enjoy an exceptionally high popularity owing ...

Medium Access Control protocols for high speed LAN/MANs often employ a timer-controlled token passing mechanism to control station access to the shared media. These protocols support time-critical (real-time) applications, and provide priority among non time-critical applications. This paper considers the stability of systems with several target token rotation times. It shows that there do not ...

This paper presents an overview of a real-time network protocol, meant to be used on fully-connected local area networks with a broadcast capability. The intended use of this protocol is an in-home digital network, with support for on-the-fly addition and removal of network nodes, for resource-lavish and resource-lean devices, and for multimedia, command and control and regular data traffic. Bo...

RT-LOTOS is a timed process algebra which enables compact and abstract specification of real-time systems. This paper proposes and illustrates a structural translation of RT-LOTOS terms into behaviorally equivalent (timed bisimilar) finite Time Petri nets. It is therefore possible to apply Time Petri nets verification techniques to the profit of RT-LOTOS. Our approach has been implemented in RT...

This paper compares the principles of operation, the services, the dependability mechanisms and the system level properties of distributed real-time systems that are based on the Controller Area Network (CAN) protocol and the Time-Triggered protocol (TTP). The paper comes to the conclusion that CAN is well suited for soft real-time systems where flexibility is important, while TTP is most appro...

Inventory models need some specification of the distribution of demand in order to find the optimal order-up-to level or reorder point. This distribution is unknown in real life and there are several solutions to overcome this problem. One approach is to assume a distribution, estimate its parameters and replace the unknown demand parameters by these estimates in the theoretically correct model...

mind is mysterious and complex . thoughts were transferred from one mind to the other mind by cognitive domains and senses. the scientific information is based on observation and analysis, and research may benefit the most through initial real information. we have a virtual area in mind; this area can help us for cognition of patients even if they do not speak. physicians, nurses, therapists, c...

With increasing demand for multimedia and realtime applications, local area network (LAN) technologies are rapidly being upgraded to support Quality-of-Service (QoS). Many QoS-enabled LANs are making use of resource allocation mechanisms that can discriminate among traffic classes of different priorities. When such LANs are interconnected by bridges to form an extended LAN, it is necessary to u...