The virtual college is a tele-educational environment that offers the opportunity for students to participate in courses from their home or office. The desktop computer is the students access to the college and the user interface is a common Web-browser. The college looks like a real college and it combines different modes of education. There is a classroom, where the lectures take place. There...

In the field of eLearning systems, several systems have been implemented in order to create a virtual university or virtual training center. By connecting several virtual universities together, we extend the concept of an online university setting to a virtual world where there is richer interaction between the players. In this virtual world, several universities can interact, the best instruct...

introduction: brain computer interface (bci) systems based on movement imagination (mi) are widely used in recent decades. separate feature extraction methods are employed in the mi data sets and classified in virtual reality (vr) environments for real-time applications. methods: this study applied wide variety of features on the recorded data using linear discriminant analysis (lda) classifier...

The NASA scatterometer (NSCAT) estimates the wind speed and direction of near-surface ocean wind. Several possible wind vectors (termed ambiguities) are estimated for each resolution element known as a wind vector cell (WVC). Typically, the speeds of the possible wind vectors are nearly the same, but the directions are very different. The correct wind must be distinguished in a step called ambi...

Today’s digital era, dynamic teaching and learning in higher education has moved from traditional class room, face-to face learning environments to more interactive and collaborative environments, due to a demand for online-distance learning from students, and the desire from academic institutes to promote and deliver courses across the globe. Advancement in open source virtual learning platfor...

The Virtual Operating Room (VOR) is an operating room training environment capable of supporting team training for surgical procedures. One of the challenges of creating such a team training environment is assembling a suitable team of participants for a training session. In the VOR, simulated agents may be substituted for actual participants. This provides the ability to conduct training sessi...

The variation of aerosols, especially dust aerosol, in time and space plays an important role in climate forcing studies. Aerosols can effectively reduce land surface longwave emission and re-emit energy at a colder temperature, making estimation of downwelling surface longwave radiation (DSLR) with satellite data difficult. Using the latest atmospheric radiative transfer code (MODTRAN 5.0), we...