Laboratory activities are indispensable for developing engineering skills. Computer Aided Learning (CAL) tools can be used to enhance laboratory learning in various ways, the latest approach being the virtual laboratory technique that emulates traditional laboratory processes. This new approach makes it possible to give students complete and genuine laboratory experiences in situations constrai...

This paper is a practice and experience paper on the use of a low cost optical whole body motion capture system in combination with an ultrasound head tracker and a wide field of view head mounted display (HMD) that enables the user to visually replace his real body with that of a virtual humanoid or alien body. We describe the integration of the low cost Optitrack motion capture system with HA...

the subject under investigation has been electronic learning (e-learning) or electronic education (e-education), specifically concentrating on virtual university. virtual university has been the subject of much debate in recent years. in short, the concept of virtual university denotes a learning/educational system/environment based on internet where higher education is promoted using tools and...

Cloud computing promises high performance and cost-efficiency. However, most cloud infrastructures operate at a low utilization, which greatly adheres cost effectiveness. Previous works focus on seeking efficient virtual machine (VM) consolidation strategies to increase the utilization of virtual resources in production environment, but overlook the under-utilization of backup virtual resources...

This paper shows how lazy functional programs can be made mobile by compiling them for the Java Virtual Machine. The Haskell compiler it describes is based on the h,Gi-machine, which is designed for implementing lazy functional languages on parallel processors. Although this is not the obvious thing to do, it leads to a particularly elegant set of translation rules. Sadly though, the speed of t...

There are proven benefits in terms of cost and convenience in delivering thin-client based virtual desktops, versus the use of traditional physical computers for end-user computing purposes. New cloud offerings such as "desktop-as-service" are rapidly being adopted among various communities, ranging from government agencies to research institutes and business entities. However, several challeng...

Storage elasticity on IaaS clouds is a crucial feature in the age of data-intensive computing, especially when considering fluctuations of I/O throughput. This paper provides a transparent solution that automatically boosts I/O bandwidth during peaks for underlying virtual disks, effectively avoiding over-provisioning without performance loss. Our proposal relies on the idea of leveraging short...

background : along with emersion of the internet, virtual education increasingly has been growing. many studies discussed this method and its impact on learning. present study investigated students’ attitude towards virtual education as well as its effect on learning. methods : this was a pretest-posttest quasi-experimental study. the nursing students, who had selected fluids and electrolyte di...

As high quality, low-cost image sensors have proliferated in the consumer market, significant new frontiers in computer vision have become accessible. Similar advances in display technology have also made low-cost, practical virtual reality tools available to consumers. However, these developments have not yet been paired together in meaningful ways. We present our novel, low-cost virtual reali...

BACKGROUND Expansion of virtual health care-real-time video consultation with a physician via the Internet-will continue as use of mobile devices and patient demand for immediate, convenient access to care grow. OBJECTIVE The objective of the study is to analyze the care provided and the cost of virtual visits over a 3-week episode compared with in-person visits to retail health clinics (RHC)...