Navigation Links
Highlights from major acoustical science and technology conference, Nov. 15-19
Date:11/3/2010

p>

Many implanted medical devices get energy from batteries, which eventually run down. Beaming energy through the skin is a useful alternative, especially for supplying cochlear implants, which require about 70 mW of power. Here the issue is whether to go with energy in the form of radio waves (RF) or ultrasound. For both methods about 10-12 percent of the beamed energy gets lost on the way as it moves through several millimeters of tissue, usually by being scattered rather than being absorbed. In both systems the overall energy efficiency is about 40-50 percent.

Rob Adamson, a researcher at Dalhousie University in Halifax, Canada, prefers the ultrasound approach, since the power source is much smaller: the RF coils are typically 5 cm in diameter, compared to 5 mm for the ultrasound source. Furthermore, the RF setup often requires an extra magnet (to keep the coils aligned), and this precludes the patient having an MRI scan performed without having the implant removed.

Adamson's ultrasound beaming device is not yet in clinical trials, but his lab is affiliated with an ear surgeon.

"We are reporting successful experiments in delivering power across a water bath using ultrasound with 38 percent efficiency," says Adamson.

The ultrasound approach might be useful for supplying energy to other such as artificial hearts.

The talk "A miniature, ultrasonic transcutaneous energy transmission system for powering implantable medical devices (1pBB9)" by Rob Adamson is at 3:50 p.m. on Monday, November 15.

Abstract: http://asa.aip.org/web2/asa/abstracts/search.nov10/asa36.html

8) Repelling Divers with the Sound of Their Breath

At the Stevens Institute of Technology in Hoboken, New Jersey, Alexander Sutin is developing a non-lethal weapon for protecting ports from underwater divers with malicious intentions -- an ac
'/>"/>

Contact: Jason S. Bardi
jbardi@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13

Related biology news :

1. 2010 AAO-HNSF new research highlights: Tuesday, Sept. 28, 2010
2. 2010 AAO-HNSF new research daily highlights: Sunday, Sept. 26, 2010
3. July 2010 Geology and GSA Today highlights
4. 5-year report highlights status of Washingtons forest resources
5. Selected highlights of the research being presented at the Experimental Biology 2010 meeting
6. Study highlights forest protected areas as a critical strategy for slowing climate change
7. Society of Interventional Radiology highlights medical advances, new discoveries
8. Study highlights sustainable footprint of chemical companies
9. Glacier-melting debate highlights importance of satellites
10. AGU journal highlights -- January 21, 2010
11. Conference highlights impact of unsettled summer weather on UK marine life
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/5/2015)... , May 5, 2015, NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market, reminds investors ... Chief Technology Officer, is presenting  at CARTES SECURE CONNEXIONS AMERICA ... 5-7, 2015. The three-day conference is organized ... is speaking in is themed Global Fraud: Where is ...
(Date:4/27/2015)... -- For more than four decades, AUVSI,s Unmanned Systems ... worldwide event for the unmanned land, sea, and air ... any local, national, or trade news organization interested in ... current applications of unmanned technologies. The conference will explore ... industry, and how it will soon impact the lives ...
(Date:4/27/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... growing mobile commerce market, announces that its Wocket® Smart ... week of May, 2015 and will be fulfilling all ... Gino Pereira , Chief Executive Officer said, ... Wocket® enters the consumer market. We would like to ...
Breaking Biology News(10 mins):NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 2NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 3UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 2UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 3UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 4UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 5Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3
... genetics test -- one of the first of its kind ... help determine the best treatment for cancer patients. Genomics ... St. Louis (GPS@WUSTL) is now offering a test for mutations ... test affect a variety of different types of tumors, including ...
... A new company launched Monday by Prime Minister Datuk ... of palm biomass for the production of high value ... and aggregation. MYBIOMASS Sdn. Bhd. was launched as ... of the Prime Minister,s Global Science and Innovation Advisory ...
... used by bodybuilders could be the key to treating ... new research shows. The amino acid L-tyrosine had ... in laboratory tests on mice, significantly improving symptoms of ... New South Wales (UNSW) found. Trials showed that ...
Cached Biology News:New service brings power of genomics to patient care 2New service brings power of genomics to patient care 3Malaysian Prime Minister launches company for supply of biomass from oil palm 2Hope for muscle wasting disease 2
(Date:5/5/2015)... RURO, Inc., a leading LIMS, RFID and sample ... major content upgrade to its bestselling, Commercial Off-The-Shelf (COTS) ... a significant advancement of FreezerPro® system , ... also simplifying , New FreezerPro® VM ... Download available immediately for free to “Gold” support subscribers ...
(Date:5/5/2015)... CAMBRIDGE, Mass. , May 5, 2015 /PRNewswire/ ... the closing of its initial public offering of ... offering price of $18.00 per share, including shares ... by the underwriters of their option to purchase ... public offering to Blueprint Medicines were approximately $168.6 million, ...
(Date:5/5/2015)... AND TORONTO, May 5, 2015 /PRNewswire/ - Aptose Biosciences Inc. ... reported financial results for the three months ended March ... otherwise, all amounts are in Canadian dollars. ... fiscal year end from May 31 to December 31. ... period being reported is for the three months ended ...
(Date:5/5/2015)... 5, 2015 Roka Bioscience, Inc. (NASDAQ: ROKA ... solutions for the detection of foodborne pathogens,  today announced that ... of America Merrill Lynch 2015 Health Care Conference on May ... Encore at the Wynn, Las Vegas NV. ... will be available through the investor relations section of Roka ...
Breaking Biology Technology:RURO Releases version 7 of FreezerPro® software 2Blueprint Medicines Announces Closing of Initial Public Offering 2Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 2Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 3Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 4Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 5Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 6Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 7Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 8
... shortlist of contenders for the highest science honor ... as the winners of the Siemens Competition in ... announced.  Cancer stem cell research earned top honors ... of Cupertino, California.  Research on molecular identification of ...
... AMEX: IBIO ) announced that the Company today ... Company currently is below certain of the Exchange,s continued listing ... Company,s Form 10-K for the year ended June 30, 2011, ... 1003(a)(iv) which applies if a listed company has sustained losses ...
... N.C., Nov. 4, 2011 NeuroCog Trials, Inc. today ... the position of Chief Operating Officer.  In this newly ... continued growth and expansion of NeuroCog Trials, business, research ... research and development for pro-cognitive therapies across a wide ...
Cached Biology Technology:Biochemistry and Bioengineering Research Brings California Students Closer to Nation's Highest Science Honor for High School Students 2Biochemistry and Bioengineering Research Brings California Students Closer to Nation's Highest Science Honor for High School Students 3Biochemistry and Bioengineering Research Brings California Students Closer to Nation's Highest Science Honor for High School Students 4Biochemistry and Bioengineering Research Brings California Students Closer to Nation's Highest Science Honor for High School Students 5iBio, Inc. Receives Notice from NYSE Amex Staff that Company Currently is Below Certain Continued Listing Standards 2NeuroCog Trials Appoints Industry Executive Michael Hufford, Ph.D. to Chief Operating Officer 2
A collection of 42 spots with normal tissues from different organs of C57 mice, rat and human....
... GenePaint system, which is based on a new ... for performing in situ hybridization of tissues on ... in the study of gene expression, in situ ... tissues and can be used to validate and ...
... scanning and positioning system is designed ... to be positioned or scanned with ... provides superior responsiveness compared to micropositioners ... (X or XY stage) are driven ...
... Array Analyst Software has been optimized for ... algorithms allow the software to quickly and ... each well of an ELISA plate or ... Analyst Software has been customized to incorporate ...
Biology Products: