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Category: Electrical Engineering

Flexible ‘skin’ can help robots, prosthetics perform everyday tasks by sensing shear force

The flexible sensor skin wrapped around the robot finger (orange) is the first to measure shear forces with similar sensitivity as a human hand — which is critical for successfully gripping and manipulating objects. Credit: UCLA If a robot is sent to disable a roadside bomb—or delicately handle an egg while cooking you an omelet—it needs to be able to sense when objects are slipping out of its grasp. Yet to date it’s been difficult or impossible for most robotic…

Detailed look at 2-D structure of turbulence in tokamaks — ScienceDaily

A key hurdle for fusion researchers is understanding turbulence, the ripples and eddies that can cause the superhot plasma that fuels fusion reactions to leak heat and particles and keep fusion from taking place. Comprehending and reducing turbulence will facilitate the development of fusion as a safe, clean and abundant source of energy for generating electricity from power plants around the world. At the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL), scientists have assembled a large database…

Using maths to map mines deep underground

The researchers translated the complex design used in microchips to create an efficient tunnel network. Credit: Shutterstock The wires of a tiny microchip may seem a world away from a huge underground mine full of complex tunnels, but for a team of University of Melbourne researchers, the design principles are very similar. More than 20 years ago, Professor Doreen Thomas and Professor Hyam Rubinstein were working on innovative methods of network optimisation – which aims to ensure optimal usage for…

Ceramic pump moves molten metal at a record 1,400 degrees Celsius

Liquid metal flowing at 1400 degrees Celsius in the laboratory of Asegun Henry at Georgia Tech. Even though all the surrounding materials are glowing, the tin remains reflective and the ripples from the pool of tin below are visible via reflections from the stream. Credit: Caleb Amy, Georgia Tech A ceramic-based mechanical pump able to operate at record temperatures of more than 1,400 degrees Celsius (1,673 Kelvin) can transfer high temperature liquids such as molten tin, enabling a new generation…

Flexible sensors can detect movement in GI tract

A new flexible piezoelectric sensor is 2 by 2.5 centimeters and can be rolled up and swallowed. “For the first time, we showed that a flexible, piezoelectric device can stay in the stomach up to two days without any electrical or mechanical degradation,” assistant professor Canan Dagdeviren, left, says. Dagdeviren is next to researcher Giovanni Traverso. Credit: Massachusetts Institute of Technology Researchers at MIT and Brigham and Women’s Hospital have built a flexible sensor that can be rolled up and…

Innovative contribution to the energy transition — ScienceDaily

In the cooperative EPSYLON research project funded by the German Federal Ministry of Education and Research, scientists from Johannes Gutenberg University Mainz (JGU) and Evonik Performance Materials GmbH have succeeded in developing a state-of-the-art and innovative electro-organic synthesis. The results of their research, presented in last week’s issue of Science Advances, allow the use of electrosynthesis as a trend-setting and sustainable green chemistry for technical applications. The method developed allows the operator to react flexibly to the available supply of…

Engineering a Million-Mile Journey with Uber ATG

Poornima Kaniarasu is a data platform engineer with Uber’s Advanced Technologies Group (ATG). In this article, she shares how her background in robotics led her to Uber Engineering, where she works on the technologies powering Uber’s self-driving vehicles. “Are you sure this is the place?” My Uber driver asked as he pulled up to my destination. I was pretty sure I inputted in the right address to my Uber app, but this definitely did not look like a corporate building.…

Powerful micro diaphragm pump for mini-sensors

The world’s smallest micromembrane pump measures just 25 square millimeters. Credit: Fraunhofer EMFT Particulate matter harms the heart and lungs. In the future, a smartphone with an inbuilt gas sensor could be used to warn of heavy exposure. To help the sensor respond quickly and provide accurate measurements, researchers at Fraunhofer have developed a powerful micro diaphragm pump for delivering ambient air to the sensor. “Our smart pump measures only 25 square millimeters, making it the world’s smallest pump. That…

Higher processor performance with microchannel cooler

The integration of microchannels into the silicon interposer allows for the first time to cool a processor also from the bottom and thereby increase the computing power. Credit: Fraunhofer IZM One of the limiting factors for the computing power of processors is the operating temperature. As part of the CarriCool project under the aegis of IBM, Fraunhofer researchers have developed a new, effective cooling method: By integrating microchannels into the silicon interposer it is for the first time possible to…

Team builds flexible new platform for high-performance electronics

Literal flexibility may bring the power of a new transistor developed at UW-Madison to digital devices that bend and move. Credit: Jung-Hun Seo, University at Buffalo, State University of New York A team of University of Wisconsin-Madison engineers has created the most functional flexible transistor in the world—and with it, a fast, simple and inexpensive fabrication process that’s easily scalable to the commercial level. It’s an advance that could open the door to an increasingly interconnected world, enabling manufacturers to…