This paper addresses possible Distributed Denial-of-Service (DDoS) attacks toward the wireless Internet including the Wireless Extended Internet, the Wireless Portal Network, and the Wireless Ad Hoc network. We propose a conceptual model for defending against DDoS attacks on the wireless Internet, which incorporates both cooperative technological solutions and economic incentive mechanisms buil...

Choosing the optimal compression algorithms for high definition and super high definition video signals including 2K and 4K resolutions and 3D stereoscopic is a complex task because of the technological needs and capabilities of different parts of the production, transmission and archiving chains. Specifics of recording, postproduction, contribution, distribution, transmission, archive and pict...

Although the adoption of Enterprise Web 2.0 within organisations is beneficial, it could meet with employees’ resistance and the adoption process can be lengthy. The successful implementation of Enterprise Web 2.0 is based on employee involvement and adoption of such social technology. This paper is part of a larger research project that explored the adoption of Web 2.0 by individuals within en...

Debates about the effects of technology on creative output have raged for some time and have intensified in recent years. On the one hand, some proponents of nearly unfettered technological advancement argue that it is largely a boon to creative output and that copyright frequently operates to impede both creative output and technological innovation. Copyright, therefore, should be relaxed in s...

Tumor ablation is a minimally invasive technique used to deliver chemical, thermal, electrical, or ultrasonic damage to a specific focal tumor in an attempt to achieve substantial tumor destruction or complete eradication. As the technology continues to advance, several image-guided tumor ablations have emerged to effectively manage primary and secondary malignancies in the liver. Percutaneous ...

in this paper, surface and piezoelectric effects on the vibration behavior of nanowires (nws) are investigated by using a timoshenko beam model. the electric field equations and the governing equations of motion for the piezoelectric nws are derived with the consideration of surface effects. by the exact solution of the governing equations, an expression for the natural frequencies of nws with ...

statins are most effective pharmacologically agents to decrease total plasma cholesterol level by competitive inhibition of hmg-co a reductase. apart from the well-known ldl and cholesterol lowering effect, statins have been postulated to exert other beneficial effects also called pleotropic or non-lipid effects. better understanding of various pleotropic effects of statins has prompted a new s...

The mobile revolution is a watershed event across many fields, including health care. Now, electronic data storage, digital photography, smart phones and tablet devices present new opportunities for educators, researchers, and health care providers. Mobile technologies allow for new possibilities for physician collaboration as well as patient diagnosis, treatment and study. However, while it pr...