Terry Blumenthal is not a medical device designer, but he has an important message for engineers who design defibrillators. The Wake Forest University psychologist is working with cardiologist Charles Swerdlow to find ways of reducing the painful electric shock administered by defibrillators when they activate. "We considered using weaker electric shocks, but that didn't work," says Swerdlow. "Then we tried changing the shape of the waveform, but that has not yet been successful," he explains. They eventually found that when a painless electric "pre-pulse" precedes a painful electric shock, the pre-pulse seems to reduce the body's startle response and minimize pain. "The pre-pulse interrupts everything, including the subsequent processing of pain," says Blumenthal. "It diminishes the neural circuits' ability to respond to subsequent painful stimulus," he says. Testing the hypothesis involved delivering 150V shocks to volunteers, who then rated the shock's painfulness with and without pre-pulses. Although volunteers received the same shock, the painfulness was rated lower with the pre-pulse. "There may be a variety of ways to integrate these finding into other applications using sound, sight, and other modalities," says Blumenthal. For more information, e-mail email@example.com.
Lithium-ion battery prices will drop rapidly over the next 10 years, setting the stage for plug-in vehicles to reach 5%-10% of total automotive sales by the mid- to late-2020s, according to a new study.
Two researchers from Cornell University have won a $100,000 grant from NASA to continue work to develop an energy-harvesting robotic eel the space agency aims to use to explore oceans on one of the moons of Jupiter.
Is the factory smarter than it used to be? From recent buzzwords, you’d think we’ve entered a new dimension in industrial plants, where robots run all physical functions wirelessly and humans do little more than program ever more capable robotics. Some of that is actually true, but it’s been true for a while.
A recent Design News-exclusive study proves that engineering professionals are at the very forefront of this push into the future and making direct financial, performance, and value impact on their organizations by being personally involved or final decision-makers on automation solution and component choices.
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.