A visual simulation system of fragment warhead missile attacking F-16C ''Falcon'' battle plane based on simulation and virtual reality technology is put forward. Firstly, the overall design of visual simulation of missile attacking F16 battleplane is implemented, and all functions of each module are demonstrated in detailed. Then 3D models in virtual battle field are optimized by level of detai...

The sensitivity attack is considered as a serious threat to the security of spread-spectrum-based schemes, since it provides a practical method of removing watermarks with minimum attacking distortion. This paper is intended as a tutorial on this problem, presenting an overview of previous research and introducing a new method based on a general formulation. This new method does not require any...

Policy Perspectives interviewed four senior experts on Afghanistan to understand the current state of affairs regarding and Pakistan-Afghanistan relations in broader perspective history, ideology, culture. The included former ambassador Pakistan Vice Chairman Institute Studies (IPS), Islamabad, Syed Abrar Hussain; Director, Study Center, University Peshawar, Professor Dr Fakhr-ul-Islam; Directo...

afghanistan as the largest producer of drug in the world, after the events of september 11, 2001, and attack of international forces following the resolution of the un, has been increasingly important in international politics. the range of effects from illigal drug trade in afghanistan and the countries on the way of transition and trafficking target market, has caused special attention paid t...