New 'acoustic diode' may provide better ultrasound images in future
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)
Read More: China | New University Campus So | University Campus | Kashmir University | Aligarh Muslim University | K P University | University Po | Kumaon University Nainital | S.v.medical College So | China Nandigama | China Garlapadu | China Dhab | Magadh University | Ranchi University | Bnmu University Madhepura | Pondicherry University Latest News | Central University of Tibetan Studies | Osmania University Hyderabad | University of Madras | Allahabad University
SAMJHAUTA EXP- ARMS WELDED IN MINCING MACHINES RECOVERED
March 7, 2014 at 5:17 PM
NARENDRA MODIS SCHEDULED 14TH MARCH GAYA RALLY CANCELLED
March 7, 2014 at 5:17 PM
JAGMOHAN DALMIYA URGES WOMENS TEAM TO WIN T20 WC
March 7, 2014 at 5:16 PM
DIBYENDU BARUA LAUNCHES CHESS TOURNEY FOR SENIOR CITIZENS
March 7, 2014 at 5:15 PM
BAN MAKES MARY KOM FEAR FOR FUTURE OF INDIAN BOXING
March 7, 2014 at 5:12 PM
Subhash Ghai returns to silver screen after five years with 'Kaanchi - The Unbreakable'
March 7, 2014 at 5:04 PM