AFrench company has introduced a new system to control the cracking of road surfaces. Called Prefis, and built by S2C INDUSTRIE of Angers, the system consists of an arm that makes transverse furrows at fixed intervals in the gravel substrate. At the same time, it injects a bitumen emulsion binder into the furrow. The transverse "precracks" prevent cracks from propagating upward out of the roadbed and into the road surface. The hydraulically controlled arm comes with a vibrating tool and spray nozzle mounted at the front of the system's tractor. The system's hydraulics, binder reservoir, compressor, and generator mount on the rear of the carrier. All are controlled from the driver's seat via a programmable logic controller. Prefis can produce furrows up to 5m (16.4 ft) in width and 32 cm (12.6 inches) in depth. At the rate of one furrow per 10 ft, it can deliver two joints per minute, equal to about 1,200 ft per hr. The French civil engineering research center (LCPC), developed the system. FAX +33 2 41 43 81 23.
Festo's BionicKangaroo combines pneumatic and electrical drive technology, plus very precise controls and condition monitoring. Like a real kangaroo, the BionicKangaroo robot harvests the kinetic energy of each takeoff and immediately uses it to power the next jump.
Design News and Digi-Key presents: Creating & Testing Your First RTOS Application Using MQX, a crash course that will look at defining a project, selecting a target processor, blocking code, defining tasks, completing code, and debugging.
These are the toys that inspired budding engineers to try out sublime designs, create miniature structures, and experiment with bizarre contraptions using sets that could be torn down and reconstructed over and over.
PowerStream is deploying the microgrid at its headquarters to demonstrate how people can generate and distribute their own energy and make their homes and businesses more sustainable through renewables.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.