Ahmet Selamet, a professor of mechanical engineering at The Ohio State University (Columbus, OH), and his students are helping automotive engineers design new types of pipe adapters that fit into an automotive engine's air intake ductwork to reduce vehicle noise. A car's intake and exhaust systems contain branched pipes. "The pipes generate sound just like a flute or other wind instrument," says Selamet. "My investigation includes the basic physics that lead to the formation of whistles as well as understanding the effective devices and strategies to suppress them." Selamet's technique for eliminating noise is the use of various shapes for deflecting wind away from the coupling interfaces. In experiments, his team reduced whistling sound by 30 dB. For more information, call Selamet at (614) 292-4143 or visit the University's web site at www.osu.edu.
More often than not, with the purchase of a sports car comes the sacrifice of any sort of utility. In other words, you can forget about a large trunk, extra seats for the kids, and more importantly driving in snowy (or inclement) weather. But what if there was a vehicle that offered the best of both worlds; great handling and practicality?
Science fiction author Isaac Asimov may have the best rules for effective brainstorming and creativity. His never-before-published essay, "On Creativity," recently made it to the Web pages of MIT Technology Review.
Much has been made over the potentially dangerous flammability of lithium-ion batteries after major companies like Boeing, Sony, and Tesla have grappled with well-publicized battery fires. Researchers at Stanford University may have come up with a solution to this problem with a smart sensor for lithium-ion batteries that provides a warning if the battery is about to overheat or catch fire.
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.