News

Slim Wing Can Reduce Aircraft Fuel Use and Emissions by 50%

NASA and Boeing are designing a longer, thinner, and lighter wing that requires a brace, or truss, to provide it with extra support. The lower-drag wing will reduce both fuel burn and carbon emissions by at least 50% over current-technology transport aircraft, and by 4 to 8% compared to equivalent advanced-technology conventional configurations with unbraced wings.

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Material Sniffs Out Fuel Leaks and Fuel-Based Explosives

Alkane fuel is a key ingredient in combustible material such as airplane fuel. Yet it’s difficult to detect and there are no portable scanners available that can sniff out the odorless and colorless vapor. University of Utah engineers developed fiber material for a handheld scanner that can detect small traces of alkane fuel vapor, a valuable advancement that could be an early-warning signal for leaks in an airliner, or for locating a terrorist’s explosive.

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New Material Eliminates the Need for Aircraft Deicers

Scientists have developed a liquid-like substance that can make aircraft wings and other surfaces so slippery that ice cannot adhere. The slick substance is secreted from a film on the wing’s surface as temperatures drop below freezing and retreats back into the film as temperatures rise. The liquid-secreting materials are called self-lubricating organogels, or SLUGs.

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Wild Mushrooms Support New Battery Anodes

Researchers at Purdue University have created electrodes from a species of wild fungus called Tyromyces fissilis.  Carbon fibers derived from the sustainable source have been shown to outperform conventional graphite electrodes for lithium-ion batteries.

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Scientists Create Reflection-Removing Camera

In recent years, computer scientists have been investigating a range of techniques for removing reflections from digital photographs shot through glass. Some have tried to use variability in focal distance or the polarization of light; others, like those at MIT, have exploited the fact that a pane of glass produces not one but two reflections, slightly offset from each other. This led to them developing a system that fires light into a scene and gauges the differences between the arrival times of light reflected by nearby objects — such as panes of glass — and more distant objects.

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Researchers Develop New Lens for Terahertz Radiation

Terahertz radiation is a relatively unexplored slice of the electromagnetic spectrum, but it holds the promise of countless new imaging applications as well as wireless communication networks with extremely high bandwidth. The problem is that there are few off-the-shelf components available for manipulating terahertz waves. Now, researchers from Brown University’s School of Engineering have developed a new type of lens for focusing terahertz radiation (which spans from about 100 to 10,000 GHz). The lens, made from an array of stacked metal plates with spaces between them, performs as well or better than existing terahertz lenses, and the architecture used to build the device could set the stage for a range of other terahertz components that don’t currently exist. The work was led by Rajind Mendis, assistant professor of engineering (research) at Brown, who worked with Dan Mittleman, professor of engineering at Brown.

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New Material Increases Lifetime of Solar-Powered Electrons

Nobody wants a laptop computer that stops working when a cloud passes by. Storing sunlight as fuel that can be later used to drive fuel cells requires new materials. Scientists demonstrated just such a material by combining two oxides on the atomic scale.

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InGaAs Imaging Sensor

New Imaging Technologies (Verrières le Buisson, France) introduces the NSC1401, a new analog wide dynamic range InGaAs sensor series in 320x256 pixels (QVGA). The NSC1401 uses a new generation of ROIC with 320x256 pixels at 25um pitch coupled to an InGaAs retina that operates in WDR mode and global shutter. The spectral response range goes from 900nm to 1700nm. The analog front end is designed to achieve extremely low input noise and ultra-fast response time down to 200ns for applications such as active imaging. The sensor operates both in linear integration mode and in log response. The NSC1401 can operate without TEC within an ambient temperature range from -40°C to 70°C.

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Flexible Sheet Camera Wraps Around Objects

A novel sheet camera developed by Columbia Engineering researchers can be wrapped around everyday objects to capture images that cannot be taken with one or more conventional cameras.

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Researchers Store Digital Data in DNA

Researchers from the University of Washington and Microsoft have stored digital images in DNA. The team of computer scientists and electrical engineers has detailed one of the first complete systems to encode, hold, and retrieve digital data using the molecules, which can store information millions of times more compactly than current archival technologies.

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