Communications

Scientists Demonstrate Data Teleportation for Secure Communications

Teleportation, a long-standing staple in the world of science fiction, has become a reality for scientists at the U.S. Army Research Laboratory in terms of battlefield data and image processing. Army Research Laboratory quantum information principal investigator Ronald Meyers and team member Keith Deacon recently demonstrated information teleportation using entangled photons.

Posted in: News, Communications, Computers, Electronics & Computers, Imaging, Photonics
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'Sensing Skin' Detects Damage in Concrete Structures

Researchers from North Carolina State University and the University of Eastern Finland have developed new “sensing skin” technology designed to serve as an early warning system for concrete structures, allowing authorities to respond quickly to damage in everything from nuclear facilities to bridges.

“The sensing skin could be used for a wide range of structures, but the impetus for the work was to help ensure the integrity of critical infrastructure such as nuclear waste storage facilities,” says Dr. Mohammad Pour-Ghaz, an assistant professor of civil, construction and environmental engineering at NC State and co-author of a paper describing the work.

The skin is an electrically conductive coat of paint that can be applied to new or existing structures. The paint can incorporate any number of conductive materials, such as copper, making it relatively inexpensive.

Electrodes are applied around the perimeter of a structure. The sensing skin is then painted onto the structure, over the electrodes. A computer program then runs a small current between two of the electrodes at a time, cycling through a number of possible electrode combinations.

Every time the current runs between two electrodes, a computer monitors and records the electrical potential at all of the electrodes on the structure. This data is then used to calculate the sensing skin’s spatially distributed electrical conductivity. If the skin’s conductivity decreases, that means the structure has cracked or been otherwise damaged.

The researchers have developed a suite of algorithms that allow them to both register damage and to determine where the damage has taken place.

Source

Also: Learn about Designing Composite Repairs and Retrofits for Infrastructure.

Posted in: News, Communications, Electronic Components, Electronics, Electronics & Computers, Materials, Semiconductors & ICs, Detectors, Sensors, Test & Measurement
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Wireless System Paves Way for 'Electroceutical' Medical Devices

A wireless system uses the same power as a cell phone to safely transmit energy to chips the size of a grain of rice. The technology paves the way for new "electroceutical" devices to treat illness or alleviate pain.

The central discovery is an engineering breakthrough that creates a new type of wireless power transfer that can safely penetrate deep inside the body.

The technology could spawn a new generation of programmable microimplants – sensors to monitor vital functions deep inside the body; electrostimulators to change neural signals in the brain; and drug delivery systems to apply medicines directly to affected areas.

Source

Also: Visit Medical Design Briefs.

Posted in: News, Communications, Wireless, Electronic Components, Electronics & Computers, Power Management, Drug Delivery, Implants & Prosthetics, Medical, Patient Monitoring, RF & Microwave Electronics, Semiconductors & ICs
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Wireless Device Senses Chemical Vapors

A research team at the Georgia Tech Research Institute (GTRI) has developed a small electronic sensing device that can alert users wirelessly to the presence of chemical vapors in the atmosphere. The technology, which could be manufactured using familiar aerosol-jet printing techniques, is aimed at myriad applications in military, commercial, environmental, and healthcare areas.

The current design integrates nanotechnology and radio-frequency identification (RFID) capabilities into a small working prototype. An array of sensors uses carbon nanotubes and other nanomaterials to detect specific chemicals, while an RFID integrated circuit informs users about the presence and concentrations of those vapors at a safe distance wirelessly.

Because it is based on programmable digital technology, the RFID component can provide greater security, reliability and range – and much smaller size – than earlier sensor designs based on non-programmable analog technology. The present GTRI prototype is 10 centimeters square, but further designs are expected to squeeze a multiple-sensor array and an RFID chip into a one-millimeter-square device printable on paper or on flexible, durable substrates such as liquid crystal polymer.

Source

Also: Learn about Extended-Range Passive RFID and Sensor Tags.

Posted in: News, Communications, Wireless, Defense, Electronic Components, Electronics, Electronics & Computers, Environmental Monitoring, Green Design & Manufacturing, Manufacturing & Prototyping, Medical, Nanotechnology, RF & Microwave Electronics, Semiconductors & ICs, Detectors, Sensors
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Thrusters Support Communications Satellite Launch

Monopropellant (hydrazine) thrusters
Aerojet Rocketdyne
Sacramento, CA
916-355-4000
www.rocket.com

Aerojet Rocketdyne, a GenCorp company, played a vital role in placing the second of three next-generation Tracking and Data Relay Satellites (TDRS-L) into orbit for NASA. In the second stage of launch, a single RL10A-4-2 engine ignited to place the TDRS-L into orbit, helped by 12 Aerojet Rocketdyne monopropellant (hydrazine) thrusters in four modules on the United Launch Alliance Atlas V Centaur upper stage, providing roll, pitch, and yaw control, as well as propellant settling burns during ascent. The RL10A-4-2 engine delivers 22,300 pounds of thrust to power the Atlas V upper-stage, using cryogenic liquid hydrogen and liquid oxygen propellants during its operation. ARDe, a New Jersey-based subsidiary of Aerojet Rocketdyne, provides the pressure vessels on the first and second stages of the launch vehicle. TDRS-L will use a single R-4D 100-lbf thruster for orbit insertion.

Posted in: Application Briefs, Communications, Satellite communications, Satellite communications, Launch vehicles
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Air And Missile Defense System To Get Smarter Software

When a missile is launched against an enemy target, it would be nice to have a lot of good information about that target. But when "decision makers push the fire button, they may have very little data, and sometimes not timely enough data," said Col. Rob Rasch Jr., project manager, Integrated Air and Missile Defense Project Office, or IAMD, at Redstone Arsenal, Ala. "Nowhere in the current Army architecture is there a way to share information from all of our various sensors and weapons to have better integrated coverage," he pointed out, referring to situational awareness for those operating Patriot and other missile defense systems like those used for short-range air defense.

Posted in: News, Aerospace, Aviation, Communications, Defense, Fiber Optics, Photonics, Antennas, RF & Microwave Electronics, Sensors, Software
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Boosting Energy Efficiency of Multi-Hop Wireless Networks

Multi-hop wireless networks can provide data access for large and unconventional spaces, but they face significant limits on the amount of data they can transmit. North Carolina State University researchers have developed a more efficient data transmission approach that can boost the amount of data the networks can transmit by 20 to 80 percent.

Posted in: News, News, Communications, Wireless, Batteries, Power Management, Energy Efficiency
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Develop Wireless Chargers for Electric Vehicles

The U.S Department of Energy has recently announced up to $4 million available this year to accelerate the development and deployment of wireless charging systems for light-duty electric vehicles (EVs).

Posted in: News, News, Wireless, Batteries, Energy Efficiency, Energy Storage, Government, Automotive, Transportation
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Read November's Lighting Technology

The new issue of Lighting Technology is here! Check out more new feature articles, application stories, tech briefs, products, videos, and research news - all on the latest advances in LEDs and solid-state lighting.

Posted in: GDM, News, News, Communications, Wireless, Power Management, Power Supplies, Alternative Fuels, Energy, Energy Efficiency, Renewable Energy, Solar Power, Green Design & Manufacturing, Lighting, Materials
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NASA Uses Emergency Notification System to Communicate With Personnel

The Communicator!® NXT™ emergency notification system
Cassidian Communications (an EADS North America company)
Temecula, CA
951-719-2100

Posted in: Application Briefs, Communications, Communication protocols, Communication protocols, Hazards and emergency management, Hazards and emergency operations, Rescue and emergency vehicles and equipment
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