Navigation Links
Sound safety
Date:5/12/2011

g balloon, uses a novel, miniaturized technology called an Asius Diaphonic PumpTM to inflate the polymer membrane.

The pump, developed with support from NSF's Small Business Innovation Research program, converts the alternating, compression-expansion waves of sound into a direct-flowing stream of molecules, filling the membrane using only minimal energy from the headphone speaker. The pump has enough force to both inflate the ear lens and keep the device comfortably in the ear canal for as long as the device is worn.

"The lens maintains desirable audio fidelity, especially at bass frequencies, and prevents feedback," says Gido. "The flexible membrane vibrates with the oscillating sound pressure in the sealed ear canal and radiates excess sound energy out of the closed space in front of the ear drum. In a sense, the flexible polymer membrane behaves like a second ear drum, which is more compliant than the real ear drum, allowing it to direct excess sound energy away from the sensitive structures of the ear."

The pump takes advantage of a physical property called a synthetic jet, a column of fluid that erupts when an acoustic wave passes through a small hole.

Sound waves are compression and rarefaction waves - specifically, symmetric pulses of alternating compressed and expanded air molecules. Our ears interpret the alternating pulses as sound.

"As sound waves pass through any given small hole, the alternating pulses emerge and retract through the orifice like a small air-piston, hitting and knocking the surrounding air molecules forward like billiard balls," says Ambrose. "Other molecules join in the stream from the sides due to the low pressure created by the flow. This results in a sustained jet of air."

By integrating an inward flowing jet into the side of the sound port, Asius transformed a standard synthetic jet into a real pump capable of harvesting and storing inflation and deflation pressures.

"Our support of
'/>"/>

Contact: Josh Chamot
jchamot@nsf.gov
703-292-7730
National Science Foundation
Source:Eurekalert  

Page: 1 2 3 4 5

Related medicine news :

1. New technology fuses MRI, ultrasound to achieve targeted biopsy of prostate cancer
2. Ultrasound combined with pre-operative MRI is cost effective in evaluating rotator cuff tears
3. Inner Ear Can Store Recent Sounds, Study Finds
4. High-volume portable music players may impair ability to clearly discriminate sounds
5. Sea grant awards more than $1.1 million for research under EPAs Long Island Sound study
6. Bedside ultrasound becomes a reality
7. That Squeaking Sound Might Come From Your New Hip
8. Look-and-Sound-Alike Names Account for Many Painkiller Prescription Errors
9. Microbubble ultrasound and breast biopsies
10. Ultrasound and a blood test can increase survival after myocardial infarction
11. AIUM announces ultrasound practice accreditation in fetal echocardiography
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sound safety 
(Date:8/1/2015)... (PRWEB) , ... August 01, 2015 , ... Brig and ... Company, are announcing the unification of their Healthy Home mission with the HOPE Movement ... two years, the founders of both companies have agreed to join their missions of ...
(Date:8/1/2015)... ... ... “ reTXT ” was featured on NewsWatch as part of its monthly ... for iOS, Android, and Windows. Joe Toohey, the host of AppWatch and technology expert, ... delete any message including ones already sent. , While text messaging has more features ...
(Date:7/31/2015)... Indianapolis, Ind. (PRWEB) , ... August 01, 2015 , ... ... of the Global Advisory Panel on the Future of Nursing (GAPFON) 20-21 July 2015 ... were invited to participate in this meeting. , Dr. Silvia Cassiani, Advisor, Nursing and ...
(Date:7/31/2015)... ... July 31, 2015 , ... Last week, ... GoodThreads. The store can be accessed by visiting http://www.curemeso.org/store . , “Our ... customizable. The best part: whenever a product is purchased, the Meso Foundation receives ...
(Date:7/31/2015)... IL (PRWEB) , ... July 31, 2015 , ... ... to communicate. Rally Insurance Group, Inc. has re-branded their social media profiles to ... a personal way for consumers to communicate, find information, share insights and opinions. ...
Breaking Medicine News(10 mins):Health News:Looking for HOPE? Healthy Home Has Evolv’d 2Health News:Looking for HOPE? Healthy Home Has Evolv’d 3Health News:Correct Auto-Correct and Clarify the Unclear with reTXT Messaging App 2Health News:Key Latin American Nurse Leaders Identify Regional Issues During Global Advisory Panel on the Future of Nursing Meeting 2Health News:Key Latin American Nurse Leaders Identify Regional Issues During Global Advisory Panel on the Future of Nursing Meeting 3Health News:Key Latin American Nurse Leaders Identify Regional Issues During Global Advisory Panel on the Future of Nursing Meeting 4Health News:Mesothelioma Organization Launches New Store 2Health News:Mesothelioma Organization Launches New Store 3Health News:Rally Insurance Group, Inc. Connects to Customers Through Re-branded Social Media Profiles 2
... fascinate kids after maker Nestlé agreed to remove the ... it was only reacting to demands from consumer organizations ... harm children. ,Dieticians welcomed this news and ... was most likely to cause intolerance in kids. "The ...
... your diet not only makes you slim, it may ... Christiaan Leeuwenburgh and other scientists from the University of ... fewer calories a day and moderately increased the animals' ... from their average and significantly overturned the negative effects ...
... players have been found to indulge in rough games, ... of serious injuries// such as concussions and others. The ... Journal of Sport Medicine. ,‘Helmets and gloves’—sometimes ... activity that needs to be curtailed through appropriate monitoring ...
... from the Douglas Hospital Research Centre (DHRC) in Montreal, Canada, ... parents and consequently that their daughters make more attentive mothers. ... animal studies, highlight the importance of a positive environment not ... ,“There is an old adage that applies to ...
... is one of a new generation drug that can treat breast ... patients suffering from later stages of breast cancer. // Due to ... force their local health care providers to pay for the drug. ... case and won it. He was told that his local NHS ...
... of breast cancer could be allowed to use IVF to ... is due to be discussed by the government's fertility watchdog ... cancer will be allowed to select embryos free from genes ... from the Human Fertilisation and Embryology Authority (HFEA) would permit ...
Cached Medicine News:Health News:Teen Players Urged To Wear Helmets and Gloves to Avoid Sports Injuries 2Health News:Love Mom More 2Health News:Women With Breast Cancer Can Now USE IVF To Spare Their Daughters 2Health News:Women With Breast Cancer Can Now USE IVF To Spare Their Daughters 3
(Date:7/30/2015)... VANCOUVER , July 30, 2015 /PRNewswire/ ... that it will report its second quarter 2015 financial ... host a conference call and live webcast at 4:30 ... results, clinical development programs and a general corporate update. ... to the Investor Relations page of the OncoGenex website ...
(Date:7/30/2015)... 2015 PTC Therapeutics, Inc. (NASDAQ: PTCT ... results for the second quarter ending June 30, 2015. ... across the organization.  We are excited to be near ... trial ever conducted with topline results expected in the ... Officer, PTC Therapeutics, Inc. "Translarna is now commercially available ...
(Date:7/30/2015)... China , July 30, 2015 Tianyin ... a pharmaceutical company that specializes in the patented biopharmaceutical, ... pharmaceutical ingredients (API), provided updates regarding the notice it ... LLC (the "Exchange") indicating that the Company was below ... forth in Sections 134 and 1101 of the NYSE ...
Breaking Medicine Technology:PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 2PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 3PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 4PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 5PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 6PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 7PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 8PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 9PTC Therapeutics Reports Second Quarter 2015 Financial Results and Provides Corporate Update 10TPI Provides Update Regarding Non-Compliance with NYSE MKT Continued Listing Requirements 2
... SAN DIEGO, March 3, 2011 WHO:   , Awarepoint ... Cowen and Company 31st Annual Health Care Conference taking place ... Wednesday, March 9, 2011. Awarepoint is scheduled to present on ... Cowen and Company,s conferences are major industry events attracting ...
... part of its ongoing mission to serve cancer patients, ... launch of its enhanced website that provides cancer patients, ... spanning cancer prevention, education, patient care, advocacy, and financial ... a powerful new cancer resource navigator tool developed to ...
Cached Medicine Technology:Awarepoint Invited to Present at Cowen & Company 31st Annual Health Care Conference 2Awarepoint Invited to Present at Cowen & Company 31st Annual Health Care Conference 3Breakaway From Cancer® Launches Newly-Enhanced Website Offering Comprehensive, Tailored Support for Cancer Patients 2Breakaway From Cancer® Launches Newly-Enhanced Website Offering Comprehensive, Tailored Support for Cancer Patients 3
... blood gas and electrolyte analyser with reusable ... upon our well established and successful Critical ... perform up to 50 tests form a ... , ,The OPTI R uses a combination ...
... Analysis Kit incorporates detection of T-wave alternans ... DMS Holter analysis tools. Premier 12 makes ... less than 10 seconds and provides visualization ... and validation. The TWA algorithm detects two ...
Velcro® Tracheostomy tube holders are available in Adult, pediatric, and infant sizes....
... Your patient will be more comfortable, ... tracheostomy tube stabilization more secure and to ... tying and untying of twill ties, consider ... adult and neonate/infant sizes, the narrow fastener ...
Medicine Products: