Recent advances in Information and Communication Technology (ICT) provide an opportunity to build a self growing and sharing virtual environment for teaching and learning. Cloud computing is one of the latest technological advancement in ICT domain. Cloud computing technologies have changed the way applications are developed and accessed. A Virtual Learning Environment (VLE) is a system for del...

Cloud computing is a model for convenient on-demand user’s access to changeable and configurable computing resources such as networks, servers, storage, applications, and services with minimal management of resources and service provider interaction. Task scheduling is regarded as a fundamental issue in cloud computing which aims at distributing the load on the different resources of a distribu...

the aim of this research is to report the results of testing of the pv-26 pyro-techniques materials and to report the operating conditions of a cloud and an aerosol chambers and also to introduce and describe these chambers of national research center of cloud seeding in iran for further researches. the effect of ice nuclei produced by pv-26 pyro-techniques on artificial clouds has been surveye...

Network communication is gaining day by in different ways. Cloud one of the most recent and latest environments communication. Whereas this environment a facilitator for user to access his/her information from anywhere as when required. But technological enhancement also opening door new attacks. In paper, we have conducted an extensive study on Distributed Denial Service Attack (DDoS) well tec...

Cloud Computing has rapidly emerged as a new computing paradigm that arrays massive numbers of computers in centralized and distributed data centers to deliver web-based applications, application platforms, and services via a utility model. Cloud computing technologies include grid computing, utility computing and virtualization. It is very much essential to make computations of the virtual mac...

As virtualization technologies become more prevalent, Cloud users usually encounter the problem of how to build his/her own virtual cluster form cloud environment. We provided easy installation toolkit for building cloud environment with friendly user interface. Ezilla toolkit has been developed by the Pervasive Computing Team at the National Center for High-Performance Computing (NCHC). Ezilla...

Cloud computing has become one of the fastest growing fields in computer science. As the new computing service pattern of cloud computing develops rapidly, the security problem of cloud computing has become a hot research topic. Before the user passes important data or computing task to the cloud, the user of the cloud may want to verify the trusted status of the platform which actually carries...