iran’s industry has had a considerable number of difficulties to perform so well as was expected in the post – revolutionary era. unfavorable legal, political environments combined with eight –year imposed war may be singled out as the root causes of such performances. however, this paper argues that our industry’s lack of realization of its dire need to adapt to the emerging unprecedented envi...

Network virtualization provides the ability to run concurrent virtual networks over a shared substrate. However, it is challenging to design such a platform to host multiple heterogeneous and often highly customized virtual networks. Not only minimal interference among different virtual networks is desired, high-speed packet forwarding is also required. This paper presents Europa, a virtual net...

As internet usage grows exponentially, network security issues become increasingly important. Network security measures are needed to protect data during transmission. Various security controls are used to prevent the access of hackers in networks. They are firewall, virtual private networks and encryption algorithms. Out of these, the virtual private network plays a vital role in preventing ha...

class ff node { protected: virtual bool push(void∗ data) { return qout−>push(data); } virtual bool pop(void∗∗ data) { return qin−>pop(data); } public: virtual void∗ svc(void ∗ task) = 0; virtual int svc init () { return 0; }; virtual void svc end() {} ... private: SPSC∗ qin; SPSC∗ qout; }; Arbitrary streaming networks layer implements the ff_node, i.e. the building block of networks and serves ...

abstract: the objective of this paper is to measure and explain the relationship between facebook users’ social capital and their political participation in real world. following political changes in the world and in the middle east, there are growing interest among researchers to work on political participation and facebook usage. we therefore developed this interest into this research paper i...