The paper proposes a framework for supporting cost-effective cloud computing for intensive sensor utilization using a dedicated Sensor-Cloud Infrastructure (SCI). SCI virtualizes a physical sensor as a virtual sensor on the cloud computing. Dynamic grouped virtual sensors on cloud computing can be automatic provisioned on users request. Several configurations of virtual sensor groups are discus...

Nowadays, there are lots of problems in Cloud data center such as high energy consumption and low efficiency. We model a cloud environment with physical hosts and virtual machines, and design an Energy-Aware Virtual Machine Scheduling strategy (EAVMS) to reduce energy consumption and improve utilization rate by integrating system resource such as computing, storage and bandwidth resources. Expe...

Innovations in network and information technology have transformed traditional classroom lectures into new approaches that have given universities the opportunity to create a virtual laboratory. However, there is no systematic framework in existing approaches for the development of virtual laboratories. Further, developing a virtual laboratory from scratch is time consuming and costly. This art...

In cloud infrastructure, accommodating multiple virtual networks on a single physical network reduces power consumed by physical resources and minimizes cost of operating cloud data centers. However, mapping multiple virtual network resources to physical network components, called virtual network embedding (VNE), is known to be NP-hard. With considering energy efficiency, the problem becomes mo...

Performing empirical research requiring numerous interactions with web servers and transfers of very large archival data files without affecting operational information system infrastructure is highly desirable by separating unsteady test-bed environments from steady administrative networks. The key theme of this paper is the building of a virtual network of heterogeneous computing systems usin...

Performing empirical research requiring numerous interactions with web servers and transfers of very large archival data files without affecting operational information system infrastructure is highly desirable by separating unsteady test-bed environments from steady administrative networks. The key theme of this paper is the building of a virtual network of heterogeneous computing systems usin...

Grid systems can provide a virtual framework for management and scheduling of resources across different domains. This paper proposes an HMA-base grid resource scheduling system to implement resource finding and scheduling. A new cost model is also given, considering resource finding cost and resource deciding cost beyond traditional model. In succession, the new cost model is integrated into t...

Computer simulation and virtual reality visualization have evolved to become critical emerging technologies in creating immersive virtual environments for numerous fields. The ability to allow people to "go inside" these virtual environments provides a unique, and effective tool for understanding complex physical processes, and thus to innovate and to make significant improvements in a time and...

We present the OCTAVIS system, a novel virtual reality platform developed for rehabilitation and training of patients with brain function disorders. To meet the special requirements of clinical studies, our system has been designed with ease of use, patient safety, ease of maintenance, space and cost efficiency in mind. Patients are sitting on a rotating office chair in the center of eight touc...