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Category: Aerospace Engineering

Robotic fish can ‘see’ and mimic live fish — ScienceDaily

For more than a decade, biomimetic robots have been deployed alongside live animals to better understand the drivers of animal behavior, including social cues, fear, leadership, and even courtship. The encounters have always been unidirectional; the animals observe and respond to the robots. But in the lab of Maurizio Porfiri, a professor of mechanical and aerospace engineering at the NYU Tandon School of Engineering, the robots can now watch back. Porfiri and a team of collaborators tapped advances in real-time…

3-D printing of living cells

A tube with an outer diameter of approximately 15 mm and a modular internal architecture is printed in one step, by depositing core-shell alginate microparticles onto a rotating substrate. The nozzles are just visible in the top of the image. Credit: C.W. Visser and T. Kamperman Using a new technique they call “in-air microfluidics,” University of Twente scientists succeed in printing 3-D structures with living cells. This special technique enable the fast and ‘on-the-fly’ production of micro building blocks that…

A new family of aerodynamic configurations for hypersonic airplanes

Credit: Science China Press Hypersonic vehicles, which fly at Mach values larger than five (flight velocity more than 6000 km/h), could provide more convenient and efficient transportation than present subsonic airplanes for long-distance journeys in future. Typically, it only takes a couple of hours to fly from Beijing to New York at hypersonic speeds. Recent interest in these vehicles has grown, and various innovative designs have been proposed and studied. Despite entering the age of hypersonic flight, there still exist…

Engineer says new study forces researchers to rethink how elderly break their bones

University of Utah mechanical engineering assistant professor Claire Acevedo. Credit: Dan Hixson/University of Utah College of Engineering. To better understand why many elderly people are prone to break a bone in a fall (known as bone fragility fractures), perhaps doctors and researchers should look at the human skeleton in much the same way civil engineers analyze buildings and bridges, according to a new study from a University of Utah mechanical engineering professor. A team of researchers led by U mechanical…

Inverse-design approach leads to metadevices

Imagine wafer-thin eyeglasses or a smartphone camera so small it is invisible to the naked eye. Imagine an aerodynamic sensor that can conform to the exact slope and angle of a jet airplane wing. Imagine a material that can coat a tank to make it seem to disappear. These visions of future technologies emerge from a technical paper titled “Inverse-designed broadband all-dielectric electromagnetic metadevices” published online today in Scientific Reports. The Northwestern University team used inverse design…

Aerial vehicle flying freely with independently controlled main wings

Figure 1. Flight modes with independently controlled wings. Credit: The Korea Advanced Institute of Science and Technology (KAIST) Professor Dongsoo Har and his team in Cho Chun Shik Graduate School of Green Transportation in Korea Advanced Institute of Science and Technology (KAIST) lately developed an aerial vehicle that is able to control the main wings separately and independently. Aerial vehicles in a typical category have main wings fixed to the body (fuselage) in an integrated form. Shape of main wings,…

Disk patterns can self-generate — ScienceDaily

When exoplanet scientists first spotted patterns in disks of dust and gas around young stars, they thought newly formed planets might be the cause. But a recent NASA study cautions that there may be another explanation — one that doesn’t involve planets at all. Exoplanet hunters watch stars for a few telltale signs that there might be planets in orbit, like changes in the color and brightness of the starlight. For young stars, which are often surrounded by disks of…

Scott Kelly’s Endurance and the Future of Space Travel

Scott Kelly is a NASA astronaut, veteran of a year’s stay on the International Space Station (ISS), and now a published author of a popular memoir called Endurance.  He is also the twin brother of fellow astronaut Mark Kelly, who is married to former Rep. Gabrielle Giffords, who survived an assassination attempt in 2011.  At the time Giffords was shot, her brother-in-law was in orbit during an earlier ISS stay. Needless to say, Kelly has led an eventful life, and…

Researcher collaborates with industry to create design tool for syntactic foams

Syntactic foams, which have been used for years in aerospace and marine applications, are being employed in a wider and wider array of products. Nikhil Gupta, NYU Tandon professor of aerospace and mechanical engineering has partnered with specialty chemical makers Dixie Chemical and Evonik to create a web-based tool that lets product manufacturers create the right kind of syntactic foam for a specific product. Credit: NYU Tandon School of Engineering With a foundation in aerospace and deep-sea applications, syntactic foams…