Excellent Hair Fall Treatment
Look for:   Last 1 Month   Last 6 Months   All time

New 'acoustic diode' may provide better ultrasound images in future

Washington, Sat, 02 Nov 2013 ANI

Washington, Nov. 2 (ANI): A new technology called an "acoustic diode," which has been envisioned by researchers in China's Nanjing University, could dramatically improve future ultrasound images by changing the way sound waves are transmitted.

Scientists described the theoretical framework for an acoustic diode - a device that achieves a one-way transmission of sound waves much the same as an electrical diode controls the one-way transmission of electrical impulses.

Researcher Jian-chun Cheng said that the one-way flow of sound would provide brighter and clearer ultrasound images by eliminating acoustic disturbances caused by sound waves going in two directions at the same time and interfering with each other.

Cheng asserted that the propagation direction of the output wave would be controlled freely and precisely and that these features are crucial for the medical ultrasound applications of the resulting devices.

The team developed its theoretical model based on a material not found in nature called a near-Zero Index Metamaterial (ZIM) and a prism to create high transmission efficacy acoustic waves that strike a reflective boundary from two opposite sides.

In theory, explained Dr. Cheng, this would produce a unique tunneling effect and an unprecedented property that the output waveform is kept consistent with those of the waves traveling toward a boundary.

The study has been published in the journal Applied Physics Letters. (ANI)


LATEST IMAGES
How To Write a Fairy Tale by Anju Modi A/W 2015-16
Kavita Bhartia retrospects 25 years of her journey in the Indian Fashion
Prime Minister Modi Cheered in Malaysia by Asian Leaders
Half Time Kalinga Lancers Vs Ranchi Rays
Hyderabad Got a Taste of Punjabi Tadka
Post comments:
Your Name (*) :
Your Email :
Your Phone :
Your Comment (*):
  Reload Image
 
 

Comments:


OTHER TOP STORIES


Careers | Privacy Policy | Feedback | About Us | Contact Us | | Latest News
Copyright © 2015 NEWS TRACK India All rights reserved.