Qin Zhang is an assistant professor at the University of Illinois at Champaign-Urbana developing a programmable electrohydraulic (EH) control valve. The new device consists of five proportional-flow control valves that are used with a hybrid control algorithm. Zhang and colleague Haibo Hu published a paper outlining their conclusions: They say it is technically feasible to integrate a programmable valve using five individually controlled proportional valves. It is important to obtain the characteristics of sub-valves before the integration, say Zhang and Hu. They also assert that the use of a simple logic control algorithm is sufficient for achieving programmable valve features such as open center, closed center, tandem center, and float center. For more information, call Zhang at (217) 333-9419 or visit www.uiuc.edu.
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
This Gadget Freak review looks at a cooler that is essentially a party on wheels with a built-in blender, Bluetooth speaker, and USB charger. We also look at a sustainable, rotating wireless smartphone charger.
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