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Category: computing – Page 709

A wireless body area sensor network based on stretchable passive tags

Stanford engineers have developed a new type of wearable technology called BodyNet that detects physiological signals emanating from the skin. The novel tech consists of wireless sensors that stick like band-aids and beam readings.

A body area sensor network (bodyNET) is a collection of networked sensors that can be used to monitor human physiological signals. For its application in next-generation personalized healthcare systems, seamless hybridization of stretchable on-skin sensors and rigid silicon readout circuits is required. Here, we report a bodyNET composed of chip-free and battery-free stretchable on-skin sensor tags that are wirelessly linked to flexible readout circuits attached to textiles. Our design offers a conformal skin-mimicking interface by removing all direct contacts between rigid components and the human body. Therefore, this design addresses the mechanical incompatibility issue between soft on-skin devices and rigid high-performance silicon electronics. Additionally, we introduce an unconventional radiofrequency identification technology where wireless sensors are deliberately detuned to increase the tolerance of strain-induced changes in electronic properties. Finally, we show that our soft bodyNET system can be used to simultaneously and continuously analyse a person’s pulse, breath and body movement.

Solid State Cooling

US based Phononic’s thermoelectric technology is proving truly disruptive in the usually staid world of cooling technology.

When it comes to cooling technologies it’s fair to say that not a lot has changed in the past 100 years. Today, however, Phononic, a US company based in North Carolina, is using solid-state microchips to reinvent how devices are cooled.

“Over the past 50 years, semiconductors have totally transformed areas as diverse as data, communications, solar power and LED lighting,” says Alex Guichard, senior products marketing manager, Phononic. “Today, we’re using thermoelectric coolers to offer a radical alternative to traditional forms of cooling technology.”

What You Need To Know First About The Inexplicable World Of Quantum Computing

Down the road

The end game for quantum computing is a fully functional, universal fault-tolerant gate computer. To fulfill its promise, it needs thousands, maybe even millions, of qubits that can run arbitrary quantum algorithms and solve extremely complex problems and simulations.

Before we can build a quantum machine like that, we have a lot of development work to be done. In general terms, we need:

Researchers build a heat shield just 10 atoms thick to protect electronic devices

Excess heat given off by smartphones, laptops and other electronic devices can be annoying, but beyond that it contributes to malfunctions and, in extreme cases, can even cause lithium batteries to explode.

To guard against such ills, engineers often insert glass, plastic or even layers of air as insulation to prevent heat-generating components like microprocessors from causing damage or discomforting users.

Now, Stanford researchers have shown that a few layers of atomically , stacked like sheets of paper atop hot spots, can provide the same insulation as a sheet of glass 100 times thicker. In the near term, thinner heat shields will enable engineers to make even more compact than those we have today, said Eric Pop, professor of electrical engineering and senior author of a paper published Aug. 16 in Science Advances.

How will quantum computing change the world? | The Economist

The potential for quantum computing to crack other countries’ encrypted networks has captured the attention of national governments. Which of the world’s fundamental challenges could be solved by quantum computing?

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U.S. Army Troops to Get New Sci-Fi Helmet

Essentially you could use the body and a computer even modify and enhance the processes even modify the wetware making things stronger and faster. Essentially like master chief from the halo series.

The U.S. Army is testing a new helmet designed to offer full ballistic protection to a soldier’s entire head. Looking like something out of Starship Troopers, the Integrated Head Protection System (IHPS) protects a soldier’s entire head, including for the first time the face and jaw, from injury. The helmet, developed by 3M subsidiary Ceradyne Systems, is scheduled to head to the troops next year.

Researchers Have Built The Most Complex Light-Based Quantum Computer Chip Ever

In a world-first, researchers have created a quantum chip that contains four entangled particles of light, known as photons, and is capable of performing actions over hundreds of channels simultaneously.

Or to put that into context, they’ve come closer than ever before to building a chip that’s similar to the ones in our smartphones and computers, but that has the potential to perform exponentially more calculations, and can process data at the speed of light. Sounds good, right?

“This represents an unprecedented level of sophistication in generating entangled photons on a chip,” said co-lead researcher David Moss, from Swinburne University of Technology in Australia.

Newfound Superconductor Material Could Be the ‘Silicon of Quantum Computers’

A potentially useful material for building quantum computers has been unearthed at the National Institute of Standards and Technology (NIST), whose scientists have found a superconductor that could sidestep one of the primary obstacles standing in the way of effective quantum logic circuits.

Newly discovered properties in the compound uranium ditelluride, or UTe2, show that it could prove highly resistant to one of the nemeses of quantum computer development — the difficulty with making such a computer’s memory storage switches, called qubits, function long enough to finish a computation before losing the delicate physical relationship that allows them to operate as a group. This relationship, called quantum coherence, is hard to maintain because of disturbances from the surrounding world.

The compound’s unusual and strong resistance to magnetic fields makes it a rare bird among superconducting (SC) materials, which offer distinct advantages for qubit design, chiefly their resistance to the errors that can easily creep into quantum computation. UTe2’s exceptional behaviors could make it attractive to the nascent quantum computer industry, according to the research team’s Nick Butch.

Schrödinger’s cat with 20 qubits

Dead or alive, left-spinning or right-spinning — in the quantum world particles such as the famous analogy of Schrödinger’s cat can be all these things at the same time. An international team, together with experts from Forschungszentrum Jülich, have now succeeded in transforming 20 entangled quantum bits into such a state of superposition. The generation of such atomic Schrödinger cat states is regarded as an important step in the development of quantum computers.

Attackers Use Backdoor and RAT Cocktail to Target the Balkans

Several countries have been targeted by a long-term campaign operated by financially motivated threat actors who used a backdoor and a remote access Trojan (RAT) malicious combo to take control of infected computers.

The two malicious payloads dubbed BalkanDoor and BalkanRAT by the ESET researchers who spotted them have been previously detected in the wild by the Croatian CERT in 2017 and, even earlier, by a Serbian security outfit in 2016.

However, ESET was the first to make the connection between them, after observing several quite significant overlaps in the entities targeted by their operators, as well as Tactics, Techniques, and Procedures (TTP) similarities.