water deficit is one of the most important problems facing crop production in arid and semiarid regions in iran. application of super absorbent polymers may somehow control yield reduction in some crop plants under drought stress conditions. in this investigation, the effect of different levels of super absorbent polymer, superab a200 (0, 100, 200, 300 kg/h), and three irrigation intervals (7, ...

When I became Editor in Chief of Wiley’s WIREs Nanomedicine and Nanobiotechnology, I felt one of the most important issues was that the publication is dedicated to nanomedicines. This essentially suggested that nanotechnology would be transitioning into the actual development of human therapeutics. Recently, this movement has begun. We have seen the initiation of multiple clinical trials of nan...

In any communication, security is the most important issue in today’s world. Lots of data security and data hiding algorithms have been developed in the last decade, which worked as motivation for the research. In the era of internet, in every communication images play a very important role. Images are used for secret communication also like for military purposes, hiding the serial number or co...

In this paper we present a conferencing architecture compliant with the IP Multimedia Subsystem (IMS) specification. To the purpose, we embrace a practical approach, by describing an actual implementation of an open source centralized video-conferencing system, called CONFIANCE, capable to offer advanced communication experience to end-users through the effective exploitation of mechanisms like...

An implementation of a particle system as part of the rendering pipeline of a 3-D computer game is described. Due to the interactive nature of such a computer game one of the most important issues in this implementation is the real-time rendering capability of the created special effects. A short summary of the game’s rendering pipeline is given, restrictions on special effects without a partic...

Communication media have become the primary way of interaction thanks to the discovery and innovation of many new technologies. One of the most widely used communication systems today is video streaming, which is constantly evolving. Such communications are a good alternative to face-to-face meetings, and are therefore very useful for coping with many problems caused by distance. However, they ...

One of the most important issues in web mining is how to find out similarities between web pages. In this paper we propose a method based on distributed learning automata which take advantage of usage data to find out web pages similarities. The idea of the proposed method is that if different users request a couple of pages consistently together, then these pages are likely to correspond to th...