Although maximum exposure limits are not listed for radiologic examinations, a study conducted by the United States Government has determined the average values for ten selected radiologic examinations. This study entitled Nationwide Evaluation of X-ray Trends (NEXT) can be used as a guide to determine if your x-ray department meets these criteria. Recommendations are made for the reduction of ...

Distributed sensor networks operating through wireless communication offer a powerful means to sense, analyze and respond to dynamic environments spread over vast areas. Latest developments in micro electro mechanical sensors (MEMS) and related devices offer several technical and operational advantages making distributed sensor networks as a viable approach. Robustly packaged, inexpensive, ener...

One example is taking shape at Graz University of Technology in Austria. Researchers in the school’s Institute of Computer Graphics and Vision are using UWB for “augmented reality” (AR): a real-world environment enhanced by computer-generated graphics, sounds, and smells. Graz University is using UWB to track AR users in order to update their virtual surroundings as they move about. “Knowing th...