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Category: Electrical Engineering

Bringing signals into phase

Blending polymer materials in the right combination can create fractional-order capacitors that are compatible with printed circuit boards. Credit: KAUST How we use and generate electricity has changed dramatically over the past century yet the basic components that control its flow remain remarkably similar. Researchers at KAUST have now developed a novel type of component that could improve the performance of electrical circuits. Electronic circuitry is traditionally constructed from three primary elements; a resistor, a capacitor and an inductor. A…

Drones can almost see in the dark

Drone with an eye-inspired camera. Credit: UZH UZH researchers have taught drones how to fly using an eye-inspired camera, opening the door to them performing fast, agile maneuvers and flying in low-light environments. Possible applications could include supporting rescue teams with search missions at dusk or dawn. To fly safely, drones need to know their precise position and orientation in space at all times. While commercial drones solve this problem using GPS, this only works outdoors, and is not very…

Lighter weights, lower costs in additive manufacturing

Critical instant analysis, a new process for improved structural optimization in additive manufacturing, unveils the possibility of designing products that are lighter in weight and cheaper to produce. Credit: Burak Kara and Erva Ulu, Department of Mechanical Engineering, Carnegie Mellon University It’s never long before the most advanced technology needs its own innovations. Additive manufacturing, the gold standard for innovative industry production, has reached that point. With its use steadily increasing, there arises the need to fine-tune this production method;…

Startup develops animal detection system to prevent roadkill

Through means of sensors e transmitters, an animal detection system aims to feed message boards for drivers hundreds of meters before wild specimen can cross the road. Credit: Fernanda Delborgo Abra / ViaFauna Wildlife road accidents threaten endangered species, but roadkill incidents also jeopardize drivers and passengers, and may oblige road operators to disburse costly compensation. Considering that domestic animals such as horses, cattle and dogs are just as likely to be victims, the scale of the problem is apparent.…

Researchers design the building blocks of synthetic muscle using computational method

Muscle is made up of molecular motors called myosin that form complex combinations to perform specific functions, such as powering muscle contraction. Synthetic myosin could one day be used in regenerative medicine and robotics. Credit: Paul Egan/College of Engineering, Carnegie Mellon University Each time you flex your bicep, millions of molecular motors work together in a complex process inside your muscle. These motors—called myosin—are chemically-powered proteins. Combinations of them perform different muscular functions like maintaining a heartbeat or bearing weight. …

Researchers develop spectroscopic ‘science camera’ system for smartphones

Top view and side view of the compact spectrometer for the smartphone science camera, comprised of an image sensor chip with a linear variable filter attached over the surface. Credit: Micro and Nanotechnology Lab, University of Illinois at Urbana-Champaign The latest versions of most smartphones contain at least two and sometimes three built-in cameras. Researchers at the University of Illinois would like to sell mobile device manufactures on the idea of adding yet another image sensor as a built-in capability…

Key process to be modernized in production of life-saving drugs, food preservation

Research scientist Nithin Raghunathan works in the LyoHUB Lyophilization Technology Demonstration Facility at the Birck Nanotechnology Center at Purdue University. Credit: Purdue University image/Erin Easterling A consortium of experts is working to modernize a process that is used in making a wide range of products, from freeze-dried space foods to life-saving wonder drugs. The process, called “lyophilization,” removes water at low temperature and pressure. Lyophilization is needed for products that would be damaged if they were dried by heating, but…

The Story of Two Outages

Over the last two days, Cloudflare observed two events that had effects on global Internet traffic levels. Cloudflare handles approximately 10% of all Internet requests, so we have significant visibility into traffic from countries and networks across the world. On Tuesday, September 5th, the government of Togo decided to restrict Internet access in the country following political protests. The government blocked social networks and rate-limited traffic, which had an impact on Cloudflare. This adds Togo to the list of countries…

PupilScreen aims to allow parents, coaches, medics to detect concussion, TBIs with a phone

The UW researchers initially tested PupilScreen with a 3-D printed box that controls the eye’s exposure to light. They are now training their deep learning algorithms to produce similar results with the smartphone camera alone. Credit: Dennis Wise/University of Washington University of Washington researchers are developing the first smartphone app that is capable of objectively detecting concussion and other traumatic brain injuries in the field: on the sidelines of a sports game, on a battlefield or in the home of…