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Archive for the ‘engineering’ category: Page 157

Feb 8, 2018

New process could make wood as strong as titanium alloys but lighter and cheaper

Posted by in categories: energy, engineering

Engineers at the University of Maryland, College Park (UMD) have found a way to make wood more than 10 times times stronger and tougher than before, creating a natural substance that is stronger than many titanium alloys.

“This new way to treat wood makes it 12 times stronger than natural wood and 10 times tougher,” said Liangbing Hu of UMD’s A. James Clark School of Engineering and the leader of the team that did the research, to be published on February 8, 2018 in the journal Nature. “This could be a competitor to steel or even titanium alloys, it is so strong and durable. It’s also comparable to carbon fiber, but much less expensive.” Hu is an associate professor of materials science and engineering and a member of the Maryland Energy Innovation Institute.

“It is both strong and tough, which is a combination not usually found in nature,” said Teng Li, the co-leader of the team and Samuel P. Langley Associate Professor of mechanical engineering at UMD’s Clark School. His team measured the dense wood’s mechanical properties. “It is as strong as steel, but six times lighter. It takes 10 times more energy to fracture than natural wood. It can even be bent and molded at the beginning of the process.”

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Feb 6, 2018

The Largest Number Of Scientists In Modern U.S. History Are Running For Office In 2018

Posted by in categories: engineering, government, mathematics

At least 200 candidates with previous careers in science, technology, engineering and math announced bids for some of the nation’s roughly 7,000 state legislature seats as of Jan. 31, according to data that 314 Action, a political action committee, shared exclusively with HuffPost.


This comes at a time when there’s only one Ph.D. scientist in Congress.

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Feb 3, 2018

Will America yield its position as the world’s leader in science and technology?

Posted by in categories: engineering, science

Finally, are we prepared to expand science and technology opportunities for all Americans? The United States has only 5 percent of the world’s population. To stay ahead, we’ll need to use all our assets. That means leveling the barriers for women in science and engineering, and closing the participation gap for underrepresented minorities. It also means expanding tech-driven prosperity beyond the two coasts. Pittsburgh’s success is a proof of principle, but we need to nurture at least a dozen new tech hubs across America, anchored by leading universities.


We need clear answers to six big questions.

To begin, do we care if China surpasses America as the leading spender on research and development? In 2000, China and the United States accounted for roughly 5 and 40 percent, respectively, of global R&D. In 2015, the figures were 21 and 29 percent. At this pace, the lines will cross before 2020. While the average quality of American science remains higher, that gap is closing too.

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Feb 2, 2018

A faster way to fusion

Posted by in categories: engineering, nuclear energy

The benefits of fusion power are globally recognised. But the process of creating and commercialising fusion energy is a considerable scientific and engineering challenge.

This challenge is the sole focus of our work at Tokamak Energy. We believe we have a unique solution that will enable fusion to be implemented efficiently and quickly.

We are pioneering the compact spherical tokamak route to fusion power – exploring and developing our own compact spherical tokamaks (the device in which controlled fusion can take place) that will use high temperature superconductors to create strong magnetic fields to contain the hot plasma.

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Jan 31, 2018

Engineers develop flexible lithium battery for wearable electronics

Posted by in categories: engineering, mobile phones, wearables

The rapid development of flexible and wearable electronics is giving rise to an exciting range of applications, from smart watches and flexible displays—such as smart phones, tablets, and TV—to smart fabrics, smart glass, transdermal patches, sensors, and more. With this rise, demand has increased for high-performance flexible batteries. Up to now, however, researchers have had difficulty obtaining both good flexibility and high energy density concurrently in lithium-ion batteries.

A team led by Yuan Yang, assistant professor of materials science and engineering in the department of applied physics and mathematics at Columbia Engineering, has developed a prototype that addresses this challenge: a Li-on battery shaped like the human spine that allows remarkable flexibility, high , and stable voltage no matter how it is flexed or twisted. The study is published today in Advanced Materials.

“The density of our prototype is one of the highest reported so far,” says Yang. “We’ve developed a simple and scalable approach to fabricate a flexible spine-like that has excellent electrochemical and mechanical properties. Our design is a very promising candidate as the first-generation, flexible, commercial lithium-ion battery. We are now optimizing the design and improving its performance.”

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Jan 24, 2018

Tiny implant opens way to deliver drugs deep into the brain

Posted by in categories: biotech/medical, engineering, neuroscience

WASHINGTON — Scientists have created a hair-thin implant that can drip medications deep into the brain by remote control and with pinpoint precision.

Tested only in animals so far, if the device pans out it could mark a new approach to treating brain diseases — potentially reducing side effects by targeting only the hard-to-reach circuits that need care.

“You could deliver things right to where you want, no matter the disease,” said Robert Langer, a professor at the Massachusetts Institute of Technology whose biomedical engineering team reported the research Wednesday.

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Jan 20, 2018

Nanoparticle gel could make mass-market low-cost Holography, LIDAR

Posted by in categories: engineering, holograms, nanotechnology

Why aren’t holograms or related optical devices part of our everyday lives yet? The technologies can be created by using magnetic fields to alter the path of light, but the materials that can do that are expensive, brittle and opaque. Some only work in temperatures as cold as the vacuum of space.

Minjeong Cha, MSE PhD Student, applies a gel made up of chiromagnetic nanoparticles that are a conduit for modulating light to a laser apparatus. Image credit: Joseph Xu, Michigan Engineering

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Jan 19, 2018

China publishes more scientific articles than the U.S.

Posted by in categories: engineering, finance

A new analysis of global science and engineering competence shows that the United States is struggling to fight off an increasingly competitive China.

The numbers: According to the National Science Foundation, China published over 426,000 research papers in 2016. America pumped out almost 409,000. If you consider the number of citations for those papers, a measure of the influence they have in the scientific community, America does better—it placed third internationally, while China comes in fifth (Sweden and Switzerland took the top spots).

Strengths elsewhere: The report does, however, note that America invests the most in R&D, attracts the most venture capital, and awards the most advanced degrees compared with every other nation in the world.

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Jan 11, 2018

Uber Air Taxis for the Same Prices as an UberX

Posted by in categories: engineering, transportation

Mark Moore, Uber Engineering Director of Aviation, and Bell Helicopter’s EVP of Technology and Innovation, Michael Thacker, joined Cheddar to break down the new program.

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Jan 11, 2018

White graphene makes ceramics multifunctional

Posted by in categories: engineering, nuclear energy

A little hBN in ceramics could give them outstanding properties, according to a Rice University scientist.

Rouzbeh Shahsavari, an assistant professor of civil and environmental engineering, suggested the incorporation of ultrathin hexagonal boron nitride (hBN) sheets between layers of calcium-silicates would make an interesting bilayer crystal with multifunctional properties. These could be suitable for construction and refractory and applications in the nuclear industry, oil and gas, aerospace and other areas that require high-performance composites.

Combining the materials would make a ceramic that’s not only tough and durable but resistant to heat and radiation. By Shahsavari’s calculations, calcium-silicates with inserted layers of two-dimensional hBN could be hardened enough to serve as shielding in nuclear applications like power plants.

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