Navigation Links
'Invisibility cloak' could protect against earthquakes
Date:7/20/2009

LIVERPOOL, UK 20 July 2009: Research at the University of Liverpool has shown it is possible to develop an 'invisibility cloak' to protect buildings from earthquakes.

The seismic waves produced by earthquakes include body waves which travel through the earth and surface waves which travel across it. The new technology controls the path of surface waves which are the most damaging and responsible for much of the destruction which follows earthquakes.

The technology involves the use of concentric rings of plastic which could be fitted to the Earth's surface to divert surface waves. By controlling the stiffness and elasticity of the rings, waves travelling through the 'cloak' pass smoothly into the material and are compressed into small fluctuations in pressure and density. The path of the surface waves can be made into an arc that directs the waves outside the protective cloak. The technique could be applied to buildings by installing the rings into foundations.

Sebastien Guenneau, from the University's Department of Mathematics, who developed the technology with Stefan Enoch and Mohamed Farhat from the Fresnel Institute (CNRS) in Marseilles, France, explained: "We are able to 'tune' the cloak to the differing frequencies of incoming waves which means we can divert waves of a variety of frequencies. For each small frequency range, there is a pair of rings which does most of the work and these move about a lot bending up and down when they are hit by a wave at their frequency.

"The waves are then directed outside the cloak where they return to their previous size. The cloak does not reflect waves they continue to travel behind it with the same intensity. At this stage, therefore, we can only transfer the risk from one area to another, rather than eliminate it completely."

He added: "This work has enormous potential in offering protection for densely populated areas of the world at risk from earthquakes. The chal
'/>"/>

Contact: Kate Spark
kate.spark@liv.ac.uk
44-151-794-2247
University of Liverpool
Source:Eurekalert

Page: 1 2

Related biology news :

1. HIV pays a price for invisibility
2. A viral cloaking device
3. Carnegie Mellon researchers create invisibiity cloak
4. U of A honored for research that could help 30 million Brazilians
5. Clean fuels could reduce deaths from ship smokestacks by 40,000 annually
6. US-Mexico border wall could threaten wildlife species
7. Pacific Northwest forests could store more carbon, help address greenhouse issues
8. New e-science service could accelerate cancer research
9. New MRI technique could mean fewer breast biopsies in high-risk women
10. New biomarker method could increase the number of diagnostic tests for cancer
11. Super-sleepers could help super-sizers!
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/24/2015)... report analyzes the worldwide markets for Face and Voice Biometrics in ... The report provides separate comprehensive analytics for the US, ... , Asia-Pacific , Middle East ... Latin America . Annual estimates and forecasts are provided for ... provided for these markets. Market data and analytics are derived from ...
(Date:2/18/2015)... SUNNYVALE, Calif. , Feb. 18, 2015  Cepheid (NASDAQ: ... be speaking at the following conferences, and invited investors to ... Conference, Boston, MA Tuesday, March 3, ... Institutional Investors Conference, Orlando, FL Wednesday, ... Accessing Live Webcasts To access the live webcasts for these ...
(Date:2/11/2015)... February 11, 2015 ... "Access Control Market by Product (Cards and Readers, Biometrics, ... Defense, Government, Industrial, Healthcare, Education) and By Geography - Global ... MarketsandMarkets, the Access Control Market is expected ... at a CAGR of 10.6% between 2014 ...
Breaking Biology News(10 mins):World Face and Voice Biometrics Industry 2World Face and Voice Biometrics Industry 3World Face and Voice Biometrics Industry 4World Face and Voice Biometrics Industry 5World Face and Voice Biometrics Industry 6World Face and Voice Biometrics Industry 7World Face and Voice Biometrics Industry 8World Face and Voice Biometrics Industry 9World Face and Voice Biometrics Industry 10World Face and Voice Biometrics Industry 11World Face and Voice Biometrics Industry 12World Face and Voice Biometrics Industry 13World Face and Voice Biometrics Industry 14World Face and Voice Biometrics Industry 15World Face and Voice Biometrics Industry 16Cepheid to Webcast Upcoming Financial Presentations 2Access Control Market Worth $10.4 Billion by 2020 2Access Control Market Worth $10.4 Billion by 2020 3Access Control Market Worth $10.4 Billion by 2020 4
... has made his name by successfully transplanting bioengineered stem cell-based ... plans to use the technique to recreate more complex tissues, ... the heart and lungs. He has also made an experimental ... part of the news he will be presenting during his ...
... in our DNA but not translated into proteinare key to ... researchers at The Wistar Institute. These non-coding RNA-activators (ncRNA-a) have ... early embryonic development, researchers say, and have also been connected ... In an online article of the journal Nature ...
... Resolving the debate over how best to feed a ... yields at local levels around the world, a University of ... finer ability to predict the productive capacity of every hectare ... able to prioritize the research agenda for agriculture and to ...
Cached Biology News:Stem cell-based bioartificial tissues and organs 2'Activating' RNA takes DNA on a loop through time and space 2'Activating' RNA takes DNA on a loop through time and space 3Meeting: Project aims to predict yield potential to help global food security 2Meeting: Project aims to predict yield potential to help global food security 3
(Date:2/27/2015)... and SUMMERLAND, British Columbia , ... XON ), a leader in synthetic biology, ... acquire  Okanagan Specialty Fruits (OSF), the pioneering agricultural ... the world,s first non-browning apple. Through the acquisition, Intrexon ... that is more appetizing and convenient for consumers while ...
(Date:2/27/2015)... 27, 2015 Research and Markets ( http://www.researchandmarkets.com/research/p2ddnr/global_market ... Report of Trypsin" report to their offering. , ... at providing comprehensive data on Trypsin globally and regionally ( ... North America , Latin America ... to Trypsin This report focuses on three primary ...
(Date:2/27/2015)... 27, 2015 Bionomics Limited (ASX:BNO, ADR:BMICY) is ... of BNC105 in patients with metastatic renal cancer at ... Florida . The data will be presented by ... Hope Comprehensive Cancer Center in California ... new data identifies Ferritin and IL-8 as two baseline ...
(Date:2/27/2015)... CA (PRWEB) February 27, 2015 Cytokinetics, ... forces on February 28 with patients and health care ... awareness for Rare Disease Day®. Rare Disease Day ... and calling attention to the special challenges faced by ... them. , “Cytokinetics is proud to stand alongside patients ...
Breaking Biology Technology:Intrexon to Acquire Okanagan Specialty Fruits 2Intrexon to Acquire Okanagan Specialty Fruits 3Intrexon to Acquire Okanagan Specialty Fruits 4Global Market Report of Trypsin 2014-2018 2New BNC105 Biomarker Data to be Presented at US Cancer Conference 2New BNC105 Biomarker Data to be Presented at US Cancer Conference 3New BNC105 Biomarker Data to be Presented at US Cancer Conference 4New BNC105 Biomarker Data to be Presented at US Cancer Conference 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 6
... that TechStar will receive a two-year grant from the ... research institutions in Milwaukee, which for years trailed their ... are aspiring to catch up. Thats good news for ... economy. , ,If Milwaukee wants to transform itself from ...
... in the field and navigating at the helm of several ... (which is located in Woodridge, Ill. across from Argonne ... advance his drug discovery company. , ,Following a six-month ... the next few weeks with financial adviser Legg Mason ...
... WI - Automating Peripherals Inc announced that the ... security standards mandated by the Health Insurance Portability ... Commission on Accreditation of Healthcare Organizations (JCAHO). SecurALL ... organizations regulate and monitor facility access throughout an ...
Cached Biology Technology:Milwaukee research institutions step up the pace for technology transfer 2Advanced Life Sciences to Hit the Road For $30 Million in Funding 2Advanced Life Sciences to Hit the Road For $30 Million in Funding 3Advanced Life Sciences to Hit the Road For $30 Million in Funding 4
...
Applications: Western blotting ...
...
Peptide-affinity Purified Polyclonal Antibody to MAML1 / Mastermind Peptide with sequence VLPTCPMAEFALPR, from N Terminus of the protein sequence according to NP_055572....
Biology Products: