More than half the wireless LAN access points located in a drive-by test have no encryption, raising the possibility that data could be monitored or captured. Of the 1,137 wireless nets that were found in Atlanta, Chicago, and San Francisco, 57% were not encrypted, according to AirDefense Inc. (www.airdefense.net), a company specializing in WLAN security. In Atlanta, only 8% of all traffic was encrypted, though in the other cities most nets with high volume that might typify business usage did have encryption to hide information from others. So, we won't be surprised if the Atlanta courts fill up with corporate espionage cases.
A bold, gold, open-air coupe may not be the ticket to automotive nirvana for every consumer, but Lexus’ LF-C2 concept car certainly turned heads at the recent Los Angeles Auto Show. What’s more, it may provide a glimpse of the luxury automaker’s future.
The complexity of diesel engines means optimizing their performance requires a large amount of experimentation. Computational fluid dynamics (CFD) is a very useful and intuitive tool in this, and cold flow analysis using CFD is an ideal approach to study the flow characteristics without going into the details of chemical reactions occurring during the combustion.
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