Quantcast

Latest Jeffrey Rhoads Stories

New Teaching Approach Praised For Engineering Education
2014-06-10 03:56:18

Emil Venere, Purdue University Purdue University researchers who developed a new approach to more effectively teach large numbers of engineering students are recommending that the approach be considered for adoption by universities globally. The system, called the Purdue Mechanics Freeform Classroom, allows students to interact with each other and faculty online while accessing hundreds of instructional videos and animations. It was pioneered by Charles Krousgrill, a professor of...

Cell Phone Performance Might Improve With 'Nanoresonators'
2012-08-31 13:41:10

Researchers have learned how to mass produce tiny mechanical devices that could help cell phone users avoid the nuisance of dropped calls and slow downloads. The devices are designed to ease congestion over the airwaves to improve the performance of cell phones and other portable devices. "There is not enough radio spectrum to account for everybody's handheld portable device," said Jeffrey Rhoads, an associate professor of mechanical engineering at Purdue University. The overcrowding...

2012-02-07 21:19:30

Researchers have learned how to improve the performance of sensors that use tiny vibrating microcantilevers to detect chemical and biological agents for applications from national security to food processing. The microcantilevers - slivers of silicon shaped like small diving boards - vibrate at their natural, or "resonant," frequency. Analyzing the frequency change when a particle lands on the microcantilever reveals the particle's presence and potentially its mass and composition. The...

fb6a19906d331b7c1e8d288f3ea501ee1
2009-08-10 15:04:24

Researchers are developing a new class of tiny mechanical devices containing vibrating, hair-thin structures that could be used to filter electronic signals in cell phones and for other more exotic applications.Because the devices, called resonators, vibrate in specific patterns, they are able to cancel out signals having certain frequencies and allow others to pass. The result is a new type of "band-pass" filter, a component commonly used in electronics to permit some signals to pass through...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
Related