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Atomic layer deposition technique improves thermoelectric materials

January 22, 2013 9:49 am | News | Comments

Researchers at the Aalto University School of Chemical Technology have applied atomic layer deposition (ALD) technique to the synthesis of thermoelectric materials. Converting waste energy into electricity, these materials are a promising means of producing energy cost-effectively and without carbon dioxide emissions in the future.

New material for warm-white LEDs

January 18, 2013 8:09 am | News | Comments

Light-emitting diodes (LEDs) are known for their energy efficiency and durability, but the bluish, cold light of current white LEDs has precluded their widespread use for indoor lighting. Now, University of Georgia scientists have fabricated what is thought to be the world's first LED that emits a warm white light using a single light-emitting material, or phosphor, with a single emitting center for illumination.

Webb Telescope teams completes optics milestone

January 17, 2013 10:27 am | News | Comments

Engineers working on NASA's James Webb Space Telescope have recently concluded performance testing on the observatory's aft-optics subsystem at Ball Aerospace & Technologies Corp's facilities in Boulder, Colo. This is significant because it means all of the telescope's mirror systems are ready for integration and testing.

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Aerial platform supports development of lightweight sensors for UAVs

January 17, 2013 7:44 am | News | Comments

A research team at the Georgia Tech Research Institute (GTRI) is developing an airborne testing capability for sensors, communications devices, and other airborne payloads. This aerial test bed, called the GTRI Airborne Unmanned Sensor System (GAUSS), is based on an unmanned aerial vehicle made by Griffon Aerospace and modified by GTRI.

Building electronics from the ground up

January 14, 2013 5:19 pm | News | Comments

Electronics devices are a mainstay of our daily lives. But the expectation that the next shopping season will inevitably offer an upgrade to more-powerful gadgets largely depends on size, and developers who employ top down manufacturing methods are running into expensive roadblocks as the domain shrinks to the nanoscale. To go further, some researchers looking at a bottom up method, coaxing individual molecules to self-arrange into patterns.

Device helps children with disabilities access tablets

December 11, 2012 10:11 am | News | Comments

Researchers at Georgia Institute of Technology are trying to open the world of tablets to children whose limited mobility makes it difficult for them to perform the common pinch and swipe gestures required to control the devices. In their Access4Kids wireless input device, a sensor system to translate physical movements into fine-motor gestures to control a tablet.

Naval welding technique crosses over to computers

December 7, 2012 9:11 am | News | Comments

Apple’s newest iMac computer line, which went on sale last week, has something in common with world of shipbuilding. Refined for use in constructing vessels by the Office of Naval Research, friction-stir welding is responsible for the enabling the design of the iMacs. The process uses heat and pressure to join metals, and is used to achieve an extra-thin aluminum-bodied computer.

Engineer defines the globalization rubric for construction

December 6, 2012 1:19 pm | by Neal Moriconi, Virginia Tech | News | Comments

Many design and construction companies are frustrated by a lack of strategic information when it comes time for them to decide whether to expand their efforts globally.  John E. Taylor, an associate professor of civil and environmental engineering at Virginia Tech has created a unique lab at Virginia Tech that can identify systemic changes in engineering networks of industrial and societal importance, and could help guide these companies.

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Thermoplastic composites made simpler to produce

December 6, 2012 12:41 pm | News | Comments

Continuous fiber-reinforced composites with thermoplastic matrix resins are well suited for use in automotive manufacturing, but the process of creating them is complex and expensive. A new approach now makes it possible to use an injection molding process. Previously, injection molding was limited to fiber-reinforced composites made of short fibers or long fibers.

Predicting material fatigue

November 29, 2012 1:51 pm | News | Comments

Detection of material failure is a difficult task for engineers, because cracks inside a material block can’t readily be identified from the outside. Researchers in Germany have now developed so-called self-reporting composite materials that can communicate their internal condition. The concept utilizes zinc oxide tetrapod crystals as a filler material for composites which at the same time reveals material failure by a visual signal under UV light.

Laser-based “printing” method used to make NASA rocket parts

November 9, 2012 1:15 pm | by Bill Hubscher | News | Comments

At NASA's Marshall Space Flight Center, a manufacturing technique called selective laser melting, or SLM, to create intricate metal parts for America's next heavy-lift rocket. Working from a 3D computer-aided design computer file, the machine basically “prints” complex parts using metal powder and lasers. The process significantly reduces the manufacturing time required to produce parts from months to weeks or even days, in some cases.

Versatile optomechanical sensors aid atomic force microscopy

October 25, 2012 2:25 pm | News | Comments

Researchers from NIST have developed on-chip optomechanical sensors for atomic force microscopy (AFM) that extend the range of mechanical properties found in commercial AFM cantilevers, potentially enabling the use of this technology to study a wide variety of physical systems.

Well-ordered nanorods could improve LED displays

October 25, 2012 2:16 pm | News | Comments

Synchrotron-based imaging has helped develop enhanced light-emitting diode (LED) displays using bottom-up engineering methods. Collaborative work between researchers from the University of Florida and Cornell University has produced a new way to make colloidal "superparticles" from oriented nanorods of semiconducting materials.

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World’s most advanced mirror for giant telescope completed

October 23, 2012 5:06 pm | News | Comments

Optical scientists and engineers have recently been polishing an 8.4-m diameter mirror underneath the University of Arizona’s football stadium. Destined for the 25-m Giant Magellan Telescope, the giant slab of glass is, by a factor of ten, the most “difficult” mirror ever made, boasting a precision of 19 nm along its surface. The shape allows it to merge seamlessly with six other mirror to form the next generation of giant telescopes.       

Skydiver's feat could influence spacesuit design

October 18, 2012 11:39 am | by Marcia Dunn, AP Aerospace Writer | News | Comments

According to a NASA engineer, “Fearless Felix” Baumgartner's death-defying jump Sunday from a balloon 24 miles above Earth gives us a good foundation for improving the odds of survival for professional astronauts, space tourists, and high-altitude pilots and passengers. Researchers have spent decades working on self-contained space escape systems, with no significant advances since Joe Kittinger in 1960 jumped from 19.5 miles up and reached 614 mph.

Effort to mass-produce flexible nanoscale electronics

October 16, 2012 1:27 pm | News | Comments

Case Western Reserve University researchers have won a $1.2 million grant to develop technology for mass-producing flexible electronics devices at a whole new level of small. As they're devising new tools and techniques to make wires narrower than a particle of smoke, they're also creating ways to build them in flexible materials and package the electronics in waterproofing layers of durable plastics.

Absorbent nanomaterial cleans up toxic water

October 15, 2012 2:14 pm | News | Comments

Science is full of surprises. College of Wooster chemist Paul Edminston's search for a new way to detect explosives at airports instead led to the creation of what's now called "Osorb," swellable, organically modified silica, or glass, capable of absorbing oil and other contaminants from water.

Demonstrating Development Risk Reduction

October 10, 2012 9:42 am | by Edward Brunner, Group Leader, Industrial and Scientific Group, Cambridge Consultants | Articles | Comments

A phased approach to product development, including models, can help reduce risks and end in rewards.

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