Navigation Links
Robojelly gets an upgrade
Date:11/22/2011

Engineers at Virginia Polytechnic Institute and State University (VirginiaTech) have developed a robot that mimics the graceful motions of jellyfish so precisely that it has been named Robojelly. Developed for the Office of Naval Research in 2009, this vehicle was designed to conduct ocean underwater surveillance, enabling it potentially to detect chemical spills, monitor the presence of ships and submarines, and observe the migration of schools of fish.

Recently, a team at VirginiaTech has improved the performance of this silicone swimmer, enabling it to better overcome the limitations of its artificial skin and better mimic the true motion of a jellyfish. Details on this new design and how it might provide new insights into jellyfish propulsion mechanisms will be presented at the 2011 meeting of the American Physical Society's Division of Fluid Dynamics in Baltimore, Md., Nov. 20-22.

According to VirginiaTech mechanical engineer Alex Villanueva, Robojelly looks very similar to an actual jellyfish. "Its geometry is copied almost exactly from a moon jellyfish [Aurelia aurita]," he said. The robot is built out of silicone and uses shape memory alloy (SMA) actuators to swim.

To move through the water, the natural animal uses the bell section of its body, which deforms and contracts to provide thrust. The lower, or lagging, section of the bell is known as the flexible margin, and it deforms slightly later in the swimming process than the rest of the bell. Until recently, however, Robojelly lacked this crucial piece of anatomy in its design.

Villanueva and his colleagues tested a number of different designs for their robot, some with and without an analog to a flexible margin. Initially, the artificial materials used in construction presented a problem. Unlike their natural counterparts, the artificial materials tended to fold as they deformed, reducing Robojelly's performance.

After testing a number of designs and lengths fo
'/>"/>

Contact: Charles Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology news :

1. Los Angeles World Airports Selects Unisys to Upgrade ID Card Reader System and Network
2. Athens Regional Medical Center Upgrades to Omnicell G4 Platform for Supply and Medication Management
3. Magnifying research: Scientists team together to upgrade supercomputer
4. Youku Upgrades Fingerprinting System for Tougher Copyright Protection Measures
5. Youku Upgrades Fingerprinting System for Tougher Copyright Protection Measures
6. $5 million NSF grant will upgrade and expand NJIT radio telescope array
7. Gender-bending fish problem in Colorado creek mitigated by treatment plant upgrade
8. Upgrade to advanced photon source announced by DOE
9. IEEE Launches Major Upgrade of IEEE Xplore(R) Digital Library
10. Commercial yeasts upgraded with an enzyme for biofuel production
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... are the largest minority group in the United States, ... Latinos are obese and are 1.2 times as likely ... NYU College of Nursing student researcher Lauren Gerchow, BSN, ... that contribute to this problem by compiling a systematic ... in Latina women recently published in Nursing Research ...
(Date:7/31/2014)... study (HPV-023; NCT00518336) shows the sustained efficacy, ... virus (HPV) vaccine Cervarix. Women vaccinated with ... more than nine years, and vaccine efficacy ... is the longest follow-up report for a ... for the full paper. , HPV ...
(Date:7/31/2014)... team of scientists from Spain, France, and the ... that is the oldest definitive member of the ... amber. The discovery and description were made possible ... synchrotron imaging technique, which allows the detailed study ... new species is described in the journal ...
Breaking Biology News(10 mins):NYU research looks to combat US Latina immigrant obesity 2Sustained efficacy, immunogenicity, and safety for GlaxoSmithKline's HPV vaccine 2Sustained efficacy, immunogenicity, and safety for GlaxoSmithKline's HPV vaccine 3
... in spite of waves that sometimes pound the shore ... 600 miles per hour are more prone to snap ... the American Association for the Advancement of Science meeting in ... reported that the fibrous threads she calls "nature,s bungee cords" ...
... or impacted wisdom teeth? As we humans evolved ... brains and shorter jaws, bear big babies and live longer, ... becoming the world,s most successful primate, at nearly 7 billion ... help us better deal with issues from obesity to difficult ...
... the University of Huddersfield aims to ensure that the risk of ... lead plumbing is reduced even further in line with new ... The project is being conducted in collaboration with Yorkshire ... such as European nations and the USA, have similar issues with ...
Cached Biology News:Mussels cramped by environmental factors 2Mussels cramped by environmental factors 3Is there a Neanderthal in the house? 2Research with Yorkshire Water to reduce lead in water supplies 2
(Date:7/31/2014)... Chicago, IL (PRWEB) July 31, 2014 ... wave of automation across the U.S., increasing unemployment, ... middle class. It is a Catch 22—we ... internationally, but this means fewer jobs,” says economist ... the just-released Pollina Corporate Top 10 Pro-Business States ...
(Date:7/31/2014)... (PRWEB) July 31, 2014 The Kidney Cancer ... of its monthly news magazine, Kidney Cancer News. , ... presence on a website maintained by an international news organization. ... immediate increase in viewers.” , This month’s program highlights news ... tumors analyzed in a recent study. Kidney Cancer News ...
(Date:7/30/2014)... 30, 2014 Regulus Therapeutics Inc . ... the discovery and development of innovative medicines targeting microRNAs, ... highlights for the quarter ended June 30, 2014 on ... close. Regulus will host a conference ... 5:00 pm Eastern Daylight Time to discuss its second ...
(Date:7/30/2014)... 30, 2014  Decision Resources Group finds that ... in the United States ... penetration will be the level of savings achievable ... expected lower cost to patients. Payers plan to ... their pricing expectations in order to encourage physician ...
Breaking Biology Technology:ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 2ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 3ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 4Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 2Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 3Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 2Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 3
... 7, 2011 Cellectis (Alternext: ALCLS), the ... its nuclease production capacity has increased ten-fold ... of the nuclease manufacturing gives Cellectis bioresearch, ... of Cellectis, the potential to supply the ...
... , Inc. ( www.sermo.com ), the largest online physician ... of Sermo Sponsorship, a portfolio of offerings that provides ... to engage physicians and educate them on new products ... and mobile platforms, where physicians across 68 specialties discuss ...
... Sanford Rose Associates® - San Diego, focusing exclusively on assignments ... another successful placement. Mr. John Sperzel has been selected for ... a global provider of Point of Care testing systems and ... Directors. Mr. Sperzel is a dynamic business leader ...
Cached Biology Technology:Cellectis Announces a Ten-Fold Increase in Nuclease Production Capacity in 2011 2Sermo, Inc. Introduces New Sponsorship Product for Pharma, Biotech and Life Sciences 2Sermo, Inc. Introduces New Sponsorship Product for Pharma, Biotech and Life Sciences 3John Sperzel Appointed as Chief Executive Officer of ITC Nexus Dx 2
Applications: (+) Immunocytochemistry and immunohistochemistry...
For the quantitative determination of canine Interferon gamma,(IFN-γ) concentrations in cell culture supernates, serum and,plasma....
Non-Protein Peroxidase Stabilizer , 1 L...
... Lysate contains the cellular components necessary for ... elongation and termination factors) but has not ... is used primarily for the isolation of ... of endogenous globin mRNA. Untreated Lysate is ...
Biology Products: