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Archive for the ‘engineering’ category: Page 211

May 25, 2016

Engineers take first step toward flexible, wearable, tricorder-like device

Posted by in categories: biotech/medical, chemistry, computing, electronics, engineering, mobile phones, wearables

Engineers at the University of California San Diego have developed the first flexible wearable device capable of monitoring both biochemical and electric signals in the human body. The Chem-Phys patch records electrocardiogram (EKG) heart signals and tracks levels of lactate, a biochemical that is a marker of physical effort, in real time. The device can be worn on the chest and communicates wirelessly with a smartphone, smart watch or laptop. It could have a wide range of applications, from athletes monitoring their workouts to physicians monitoring patients with heart disease.

Nanoengineers and electrical engineers at the UC San Diego Center for Wearable Sensors worked together to build the device, which includes a flexible suite of sensors and a small electronic board. The device also can transmit the data from biochemical and electrical signals via Bluetooth.

Nanoengineering professor Joseph Wang and electrical engineering professor Patrick Mercier at the UC San Diego Jacobs School of Engineering led the project, with Wang’s team working on the patch’s sensors and chemistry, while Mercier’s team worked on the electronics and data transmission. They describe the Chem-Phys patch in the May 23 issue of Nature Communications.

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May 24, 2016

US biochemist wins award for rewriting DNA to mimic evolution

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

US biochemical engineer Frances Arnold on Tuesday won a million-euro technology prize in Finland for her work on “directed evolution”, a method of rewriting DNA to improve medicines and develop green fuels.

“Frances Arnold receives the 2016 Millennium Technology Prize in recognition of her discoveries that launched the field of ‘directed evolution’, which mimics natural evolution to create new and better proteins in the laboratory,” the Technology Academy Finland, which awards the prize at two-year intervals, said in a statement.

Arnold, 59, who is a professor of chemical engineering at California Institute of Technology, said her work made it possible to “solve human problems”, such as replacing toxic chemicals like fossil fuels.

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May 23, 2016

Acoustic engineering transcribes crackling knee sounds into moving graph

Posted by in categories: biotech/medical, electronics, engineering, health

New method for precisely identifying and treating fractures.


You’ve injured your knee. A doctor straps a listening device to it, and the noises you hear coming out of it are cringe-worthy. “Crackle! Krglkrglkrgl! Snap!”

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May 23, 2016

Assessing the Scientific Potential of Small CubeSat Satellites — New Report

Posted by in categories: biotech/medical, engineering, physics, satellites

In the last few years, hundreds of contained “nano” satellites known as CubeSats have been launched in low Earth orbit for many purposes, including for collecting targeted scientific data. Federal agencies such as NASA and the National Science Foundation are exploring the potential of these highly affordable satellites in advancing research goals.

A new report from the National Academies of Sciences, Engineering, and Medicine concludes that CubeSats have demonstrated usefulness for scientific data gathering and can also augment – but not replace — the capabilities of large satellite missions and ground-based facilities. The report identifies examples of high-priority science goals that could be pursued through the use of CubeSats in areas such as solar and space physics, planetary science, and Earth science.

In order to continue building the capabilities of CubeSats for research, federal support is crucial, the report says, which identifies several steps NASA and NSF should take to ensure that CubeSats reach their full potential.

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May 21, 2016

Lethal Autonomous Weapons

Posted by in categories: biotech/medical, computing, drones, engineering, geopolitics, robotics/AI, treaties

Biography:
Stuart Russell received his B.A. with first-class honours in physics from Oxford University in 1982 and his Ph.D. in computer science from Stanford in 1986. He then joined the faculty of the University of California at Berkeley, where he is Professor (and formerly Chair) of Electrical Engineering and Computer Sciences and holder of the Smith-Zadeh Chair in Engineering. He is also an Adjunct Professor of Neurological Surgery at UC San Francisco and Vice-Chair of the World Economic Forum’s Council on AI and Robotics. He has published over 150 papers on a wide range of topics in artificial intelligence including machine learning, probabilistic reasoning, knowledge representation, planning, real-time decision making, multitarget tracking, computer vision, computational physiology, and global seismic monitoring. His books include “The Use of Knowledge in Analogy and Induction”, “Do the Right Thing: Studies in Limited Rationality” (with Eric Wefald), and “Artificial Intelligence: A Modern Approach” (with Peter Norvig).

Abstract:
Autonomous weapons systems select and engage targets without human intervention; they become lethal when those targets include humans. LAWS might include, for example, armed quadcopters that can search for and eliminate enemy combatants in a city, but do not include cruise missiles or remotely piloted drones for which humans make all targeting decisions. The artificial intelligence (AI) and robotics communities face an important ethical decision: whether to support or oppose the development of lethal autonomous weapons systems (LAWS).

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May 19, 2016

This Is Our First Good Look at Uber’s Self-Driving Car

Posted by in categories: engineering, robotics/AI, transportation

In a blog post today, Uber showed off the self-driving car that’s been stealthily cruising around Pittsburgh. The car is a hybrid Ford Fusion and is currently in early stages of safety testing. This particular Uber test vehicle was first spotted almost a year ago by local Pittsburgh media, but this is Uber’s first acknowledgement of such tests.

Uber and Google (among others) have been racing to be the first to develop self-driving taxis for over a year now. Uber “cleaned out” Carnegie Mellon and the National Robotics Engineering Center to be part of its Advanced Technology Center in Pittsburgh, the research arm responsible for developing this “look ma, no hands” technology. This heavy hiring out of Carnegie Mellon could give Uber a big boost. The Pittsburgh-based university considers itself the birthplace of self-driving cars, and it probably is. CMU researchers were testing autonomous vehicles before Google even existed.

In March, Uber also joined a coalition, this time in partnership with Google, to advocate for self-driving adoption.

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May 18, 2016

DARPA Speeds-up Work on ‘Soft Exosuit’ that will Strengthen US Soldiers

Posted by in categories: cyborgs, energy, engineering, military, neuroscience, robotics/AI, wearables

Pressure is on DARPA by US Military to speed up on completing the soft Exosuit.


The clothing-like Soft Exosuit has been described as a “Wearable Robot” by the U.S. Defense Advanced Projects Research Agency (DARPA) that’s commissioning universities and research institutions to advance this military technology. The DARPA Soft Exosuit is part of the agency’s Warrior Web program.

A prototype Soft Exosuit had a series of webbing straps around the lower half of the body with a low-power microprocessor and a network of flexible strain sensors. These electronics act as the “brain” and “nervous system” of the Soft Exosuit. They continuously monitor data signals, including suit tension, wearer position (walking, running, crouched) and more.

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May 14, 2016

Adapting As Nano Approaches Biological Complexity: Witnessing Human-AI Integration Critically

Posted by in categories: engineering, nanotechnology, robotics/AI

Today’s emergence of nano-micro hybrid structures with almost biological complexity is of fundamental interest. Our ability to adapt intelligently to the challenges has ramifications all the way from fundamentally changing research itself, over applications critical to future survival, to posing small and medium as well as truly globally existential dangers.

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May 13, 2016

Clay nanotube-biopolymer composite scaffolds for tissue engineering

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

The fabrication of a prototype tissue with functional properties close to natural tissues is crucial for effective transplantation. Tissue engineering scaffolds are typically used as supports that allow cells to form tissue-like structures essentially required for the correct functioning of the cells under the conditions close to the three-dimensional tissue.

Scientists of the Bionanotechnology Lab at Kazan Federal University combined biopolymers chitosan and agarose (polysaccharides) and gelatine protein to produce tissue engineering scaffolds and demonstrated the enhancement of mechanical strength, higher and thermal properties in chitosan-gelatine-agarose hydrogels doped with halloysite.

Chitosan, a natural biodegradable and chemically versatile biopolymer, has been effectively used in antibacterial, antifungal, anti-tumour and immunostimulating formulations. To overcome the disadvantages of pure chitosan scaffolds such as mechanical fragility and low biological resistance, chitosan scaffolds are typically doped with other supporting compounds that allow for mechanical strengthening, thus yielding composite biologically resistant scaffolds.

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May 13, 2016

Looking toward the quantum-technology landscape of the future

Posted by in categories: computing, electronics, engineering, quantum physics

Quantum future discussed at London’s Royal Society Conference.


By Tushna Commissariat

Not a week goes by here at Physics World that we don’t cover some advance in quantum mechanics – be it another step towards quantum computing or error correction, or a new type of quantum sensor, or another basic principle being verified and tested at new scales. While each advance may not always be a breakthrough, it is fair to say that the field has grown by leaps and bound in the last 20 years or so. Indeed, it has seen at least two “revolutions” since it first began and is now poised on the brink of a third, as scientific groups and companies around the world race to build the first quantum computer.

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