QC3000 variable-speed ac motor drive for variable torque applications can be used in HVAC applications to control pumps and fans. The drive is available in a power range of 2 to 200 hp and input voltage ratings of 208, 240, 380, 415, 480, and 590V ac. QC3000 application guide examines modulation methods used to regulate air and fluid volumes: inlet guide vanes, outlet dampers, and throttling valves.
AC Technology Corp., 660 Douglas St., Uxbridge, MA 01569, FAX (508) 278-7873.
In many engineering workplaces, there’s a generational conflict between recent engineering graduates and older, more experienced engineers. However, a recent study published in the psychology journal Cognition suggests that both may have something to learn from another group: 4 year olds.
Conventional wisdom holds that MIT, Cal Tech, and Stanford are three of the country’s best undergraduate engineering schools. Unfortunately, when conventional wisdom visits the topic of best engineering schools, it too often leaves out some of the most distinguished programs that don’t happen to offer PhD-level degrees.
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