We have built a virtual data integration system which extends the BIRN Mediator[1] to include OWL 2 ontologies where these ontologies are used as domain schema. This mediator integrates data from multiple, heterogeneous sources. This data integration system rewrites conjunctive queries using LAV views defined over a DL-Lite ontology. This is an important problem in query optimization, data inte...

A real-time virtual audio reality model has been created. The system includes model-based sound synthesizers, geometric room acoustics modeling, binaural auralization for headphone or loudspeaker listening, and high-quality animation. The design goals of the overall project have been to create a virtual musical event that is as authentic as possible both in terms of audio and visual quality. No...

The fast development and deployment of cloud computing systems stimulate the needs for a standalone block storage system which can provide flexible in-line and off-line block storage services to the virtual machine instances and virtual clusters maintained by the cloud management software. This poster presents the Virtual Block Store (VBS) System, a standalone block storage system developed by ...

Virtual environment research involves a number of related problems from a variety of domains. A joint research at the George Washington University and the Naval Research Laboratory is bringing together issues from these domains to study the factors that contribute to an integrated virtual environment. The research can be divided into three general categories: human factors, motion control, and ...

This paper adopts JSP dynamic development language, struts2 core framework implements open online virtual experiment teaching platform system, the system using virtual reality technology to simulate the real experiment, include the experiment simulation platform and virtual experiment teaching management system. The simulation platform builds virtual experiment environment, so that the students...

information technology is one of the largest and most important human achievements in the present era whose influence on most human activities is undeniable. the traditional education system is being affected by the information technology and it is now turning into an electronic education system. one of the newest issues in the field of electronic education is the effects of web page achievemen...

In this paper, virtual reality sound effects for high-speed train simulation system using wavelet denoising algorithm is studied. As one important part of the high speed train operation system, virtual reality system visualizes most parameter in train operation process. Sound effect system provides sound information to the whole simulation system. It is greatly significance to the whole effect ...

We introduce UVM, a new virtual memory system for the BSD kernel that has a streamlined design that improves system performance over the old Mach-based 4.4BSD VM system. In this paper we present an overview of both UVM and the BSD VM system. We focus our discussion on the design decisions made when creating UVM and contrast the UVM design with the less efficient BSD VM design. Topics covered in...

A project to develop a telerobotic "virtual control" capability, currently underway at the University of Toronto, is described. The project centres on a new mode of interactive telerobotic control based on the technology of combining computer generated stereographic images with remotely transmitted stereoscopic video images. A virtual measurement technique, in conjunction with a basic level of ...