Featured Research

from universities, journals, and other organizations

Artificial Jellyfish, Explosives Sensor Among Projects Being Developed At Undersea Technology Center

Date:
December 15, 2007
Source:
University of Rhode Island
Summary:
Artificial jellyfish, explosives sensors and seabed batteries are among the diverse research projects under way just nine months after the creation of a Center of Excellence in Undersea Technology. When researchers began to investigate how to create a covert network of widely-distributed underwater sensors, they imagined attaching the sensors to artificial jellyfish that could maintain their place in the water while passing information from one sensor to the next.

Artificial jellyfish, explosives sensors and seabed batteries are among the diverse research projects under way just nine months after the creation of a Center of Excellence in Undersea Technology in collaboration with the Naval Undersea Warfare Center in Rhode Island.

When researchers at the Naval Undersea Warfare Center in Newport began to investigate how to create a covert network of widely-distributed underwater sensors, they imagined attaching the sensors to artificial jellyfish that could maintain their place in the water while passing information from one sensor to the next.

So the scientists turned to the Center of Excellence in Undersea Technology at the University of Rhode Island, which was established last January in partnership with NUWC to collaborate on a wide range of innovative research and education initiatives. The Center linked NUWC with two URI oceanographers and a Providence College expert in jellyfish locomotion to explore this novel idea.

“To maximize the utility of these sensor systems and deploy a large number

of them, it’s important to put them on an inexpensive platform. That’s where the jellyfish idea came from,” explained Malcolm Spaulding, director of the Center and a URI professor of ocean engineering. “An artificial jellyfish would need to be made of simple materials and be acoustically transparent. The key is understanding how jellyfish move and whether they can stay in one place despite tidal currents and waves.”

While still in its early stages, this project is a unique example of the diverse initiatives under way just nine months after the Center of Excellence was established.

“Rhode Island and the rest of southern New England has a wealth of marine and defense companies and an abundance of oceanography and ocean engineering researchers to call upon for assistance on almost any underwater project that could be imagined,” Spaulding said. “We’re one of the hubs of undersea technology research in the country.”

Among the other projects in progress are:

  • a chemical sensor that can detect minute quantities of explosives in the water (a mine on the hull of a ship or a diver carrying a bomb, for instance);
  • a battery that uses the chemical reactions from bacteria living in the seabed to generate small amounts of electricity to power offshore sensors or other devices;
  • an emergency radio beacon powered by a seawater battery that harvests the motion energy of waves to extend the life of the signal; and
  • a non-toxic method of preventing organisms from fouling underwater equipment and vehicles.

One of the Center’s initial projects, led by the Rhode Island Economic Development Corporation (RIEDC) and involving a number of Rhode Island-based businesses, was the first phase of the development of a prototype of an undersea perimeter defense system that will detect, classify and respond to undersea threats against critical infrastructure like ports and military facilities on shore.

In addition, testing began this fall in Narragansett Bay on an integrated system of undersea sensors and data management tools that are being linked to oceanographic measurement devices and underwater vehicles in a high-tech project called the Ocean Response Coastal Analysis System. Initial demonstrations of the project, led by URI Marine Research Scientist Al Hanson, have shown the capability to monitor dissolved oxygen levels using remotely controlled sensors deployed on bottom-mounted vertical profilers and autonomous underwater vehicles. When completed in five years, it will provide real-time data, analysis and visualizations of a wide range of coastal conditions and observations. Further testing is planned for the spring.

“Few of these projects would have advanced as quickly as they have without the support of the Center of Excellence to coordinate funding, formation of research teams, and associated administrative details,” said Spaulding. “The Center has become a vital vehicle for fostering collaboration between academic institutions, industry and the Navy.”

Funding for these projects comes mostly from NUWC, with additional support from URI, RIEDC, the U.S. Office of Naval Research and the U.S. Naval Research Laboratory.


Story Source:

The above story is based on materials provided by University of Rhode Island. Note: Materials may be edited for content and length.


Cite This Page:

University of Rhode Island. "Artificial Jellyfish, Explosives Sensor Among Projects Being Developed At Undersea Technology Center." ScienceDaily. ScienceDaily, 15 December 2007. <www.sciencedaily.com/releases/2007/12/071208145842.htm>.
University of Rhode Island. (2007, December 15). Artificial Jellyfish, Explosives Sensor Among Projects Being Developed At Undersea Technology Center. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2007/12/071208145842.htm
University of Rhode Island. "Artificial Jellyfish, Explosives Sensor Among Projects Being Developed At Undersea Technology Center." ScienceDaily. www.sciencedaily.com/releases/2007/12/071208145842.htm (accessed July 22, 2014).

Share This




More Matter & Energy News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Government Approves East Coast Oil Exploration

Government Approves East Coast Oil Exploration

AP (July 18, 2014) — The Obama administration approved the use of sonic cannons to discover deposits under the ocean floor by shooting sound waves 100 times louder than a jet engine through waters shared by endangered whales and turtles. (July 18) Video provided by AP
Powered by NewsLook.com
Sunken German U-Boat Clearly Visible For First Time

Sunken German U-Boat Clearly Visible For First Time

Newsy (July 18, 2014) — The wreckage of the German submarine U-166 has become clearly visible for the first time since it was discovered in 2001. Video provided by Newsy
Powered by NewsLook.com
Obama: U.S. Must Have "smartest Airports, Best Power Grid"

Obama: U.S. Must Have "smartest Airports, Best Power Grid"

Reuters - US Online Video (July 17, 2014) — President Barak Obama stopped by at a lunch counter in Delaware before making remarks about boosting the nation's infrastructure. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Crude Oil Prices Bounce Back After Falling Below $100 a Barrel

Crude Oil Prices Bounce Back After Falling Below $100 a Barrel

TheStreet (July 16, 2014) — Oil Futures are bouncing back after tumbling below $100 a barrel for the first time since May yesterday. Jeff Grossman is the president of BRG Brokerage and trades at the NYMEX. Grossman tells TheStreet the Middle East is always a concern for oil traders. Oil prices were pushed down in recent weeks on Libya increasing its production. Supply disruptions in Iraq fading also contributed to prices falling. News from China's economic front showing a growth for the second quarter also calmed fears on its slowdown. Jeff Grossman talks to TheStreet's Susannah Lee on this and more on the Energy Department's Energy Information Administration (EIA) report. Video provided by TheStreet
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins