Digital video recorders revolutionized TV viewing for many. Now, they're transforming the role of security cameras. Walgreens is installing DVRs throughout its chain of 6,200 drug stores, using them to aggregate input from the many analog and digital cameras that monitor the sites. Ionit Technologies is providing DVRs with compression technology that decreases file size up to 2,000 times so a single system can be viewed from multiple locations simultaneously. This digitized data can be shared over networks, so views can be sent to corporate or otherwise distributed. That makes it easier to expand the role of security cameras. For example, marketers can analyze traffic flow, which could improve sales.
A Tokyo company, Miraisens Inc., has unveiled a device that allows users to move virtual 3D objects around and "feel" them via a vibration sensor. The device has many applications within the gaming, medical, and 3D-printing industries.
In the last few years, use of CFD in building design has increased manifolds. Computational
fluid dynamics is effective in analyzing the flow and thermal properties of air within spaces. It can be used in buildings to find the best measures for comfortable temperature at low energy use.
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