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Category: engineering – Page 83

Organic electronic-based gas sensors hold great potential for portable healthcare-and environment-monitoring applications. It has recently been shown that introducing a porous structure into an organic semiconductor (OSC) film is an efficient way to improve the gas-sensing performance because it facilitates the interaction between the gaseous analyte and the active layer. Although several methods have been used to generate porous structures, the development of a robust approach that can facilely engineer the porous OSC film with a uniform pore pattern remains a challenge. Here, we demonstrate a robust approach to fabricate porous OSC films by using a femtosecond laser-processed porous dielectric layer template. With this laser-assisted strategy, various polymeric OSC layers with controllable pore size and well-defined pore patterns were achieved.

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First insights into engineering crystal growth by atomically precise metal nanoclusters have been achieved in a study performed by researchers in Singapore, Saudi Arabia and Finland. The work was published in Nature Chemistry.

Ordinary solid matter consists of atoms organized in a crystal lattice. The chemical character of the atoms and lattice symmetry define the properties of the matter, for instance, whether it is a metal, a semiconductor or and electric insulator. The lattice symmetry may be changed by such as temperature or , which can induce structural transitions and transform even an electric insulator to an electric conductor, that is, a metal.

Larger identical entities such as nanoparticles or atomically precise metal nanoclusters can also organize into a , to form so called meta-materials. However, information on how to engineer the growth of such materials from their has been scarce since the is a typical self-assembling process.

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After several years of developing the theoretical ideas, University of Illinois Urbana-Champaign researchers have validated multiple novel predictions about the fundamental mechanism of transport of atoms and molecules (penetrants) in chemically complex molecular and polymer liquid matrices.

The study from Materials Science and Engineering (MatSE) Professor Ken Schweizer and Dr. Baicheng Mei, published recently in Proceedings of the National Academy of Sciences (PNAS), extended the theory and tested it against a large amount of experimental data. MatSE Associate Professor Chris Evans and graduate student Grant Sheridan collaborated on this research by providing additional experimental measurements.

“We developed an advanced, state-of-the art theory to predict how move through complex media, especially in polymer liquids,” Schweizer said. “The theory abstracted what the important features are of the chemically complex molecules and of the polymeric medium that they’re moving through that control their rate of transport.”

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Digital transformation has been positioned as a cure-all to many of the challenges today’s enterprises face. But to fully reap the benefits of a digital transformation, businesses need to do more than just adopt the latest tools and apps. They also have to change their attitudes, practices and processes around data and technology, throughout their own organization and in their interactions with partners and customers.

“Digital transformation requires a jump on the technology side, but it requires a leap on the people side,” says Bill Gundrey, executive director for digital engineering and operations at Raytheon Missiles & Defense. “At Raytheon, digital transformation is a team sport. It impacts every function in our company, as well as customers and suppliers. We had to change the way people think about data and technology.”

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It took two electric trucks to cover a distance of 250 miles.

Remy Oktay, a US engineering student, has successfully completed a test run and is preparing to launch the world’s first electric flight that an electric vehicle will power.

Therefore the EV plane will need to be recharged three times.

Remy Oktay.

Continue reading “In a world-first, an electric-powered plane was charged” | >

Other proteins work as well meaning the process can be scaled without interfering with food supplies.

Researchers at Princeton Engineering have found that egg whites can be used to cheaply remove salt and microplastics from seawater, according to a press release by the institution published on Thursday.

The scientists used the food substance to create an aerogel, a lightweight and porous material that can be used in many types of applications, including water filtration, energy storage, and sound and thermal insulation.

Princeton scientists discovered that egg whites can create a filtration process that requires only gravity to operate and wastes no water. They are now looking for other uses for the substance.

Continue reading “Eggs found to remove salt and microplastics from seawater” | >

Solar cells that are stretchable, flexible and wearable won the day and the best poster award from a pool of 215 at Research Expo 2016 April 14 at the University of California San Diego. The winning nanoengineering researchers aim to manufacture small, flexible devices that can power watches, LEDs and wearable sensors. The ultimate goal is to design and build much bigger flexible solar cells that could be used as power sources and shelter in natural disasters and other emergencies.

Research Expo is an annual showcase of top graduate research projects for the Jacobs School of Engineering at UC San Diego. During the poster session, graduate students are judged on the quality of their work and how well they articulate the significance of their research to society. Judges from industry, who often are alumni, pick the winners for each department. A group of faculty judges picks the overall winner from the six department winners.

This year, in addition to solar cells, judges recognized efforts to develop 3D skeletal muscle on a chip; a better way to alleviate congestion in data center networks; a nano-scale all-optical sensor; fiber optic strain sensors for structural health monitoring; and a way to predict earthquake damage in freestanding structural systems.

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Current benchmarks for don & doff the Jet Suit, speed bearing ams and demonstration of the helmet steered sidearm.

LINKS
SHOP: http://www.gravity.co/mobile-shop/
Instagram: https://www.instagram.com/takeongravity/?hl=en.
Facebook: http://www.facebook.com/takeongravity/
LinkedIn: https://www.linkedin.com/in/richardbrowninggravity/
Web: http://www.gravity.co.
TED 2017 talk: http://go.ted.com/richardbrowning.

BACKGROUND
With a rich family history in Aviation, former Oil Trader & Royal Marines Reservist, Richard Browning, founded pioneering Aeronautical Innovation company, Gravity Industries in March 2017 to launch human flight into an entirely new era.

The Gravity #JetSuit uses over 1000bhp of Jet Engine power combined with natural human balance to deliver the most intense and enthralling spectacle, often likened to the real life Ironman.

Continue reading “Tactical Jet Suit Drills” | >

The fundamental laws of friction remain a mystery to this day.

Researchers at the NYU Tandon School of Engineering have discovered a fundamental friction law that is leading to the design of two-dimensional materials capable of minimizing energy loss, according to a press release from the institution published on Thursday.

Friction lies behind the invention and development of many of today’s most advanced technologies, however, its fundamental laws remain obscure to this day despite many developments in the field.

Continue reading “Discovery of a law of friction leads to a material that minimizes energy loss” | >

Dr Charles Brenner on the longevity understanding disconnect, the best interventions for longevity, and the NR trials he’d like to see.

The Longevity Investors Conference is a key event for those interested in learning about longevity investment opportunities and finding out more about the exciting directions in which the field is accelerating. The world’s leading and most private longevity-focused investors-only conference, LIC attracts some of the most prominent thought leaders.

One of those thought leaders is Charles Brenner, the biochemist whose work on nicotinamide adenine dinucleotide (NAD), the central catalyst of metabolism, includes the discovery of nicotinamide riboside (NR) kinase pathway and the resulting tech that led to the development of NR as an NAD-booster.

As Eric Verdin did recently, Brenner is one for driving the longevity debate, even if it causes more than a few ripples, and in cautioning against overstating progress, he is a significant calibration point for our industry (Twitter wars, notwithstanding). We were able to grab a few moments with Brenner at LIC to find out more about his thoughts on the current state of play.

Continue reading “Dr Charles Brenner: longevity is not a simple engineering problem” | >