Menu

Blog

Page 3295

Oct 8, 2022

Zinc-cerium redox flow battery for renewable energy storage

Posted by in categories: energy, sustainability

“The Ce electrolyte is highly oxidative, which poses a challenge towards the stability of anion membrane,” Daoud said. “Thus, the stability and selectivity of anion membrane require further improvement.”

The device achieved a voltage plateau of 2.3 V at 20 mA cm − 2, energy efficiency of 71.3% at 60 mA cm − 2, and a record average Coulombic efficiency of 94% during cycling.

Oct 8, 2022

Google’s new AI can hear a snippet of song—and then keep on playing

Posted by in categories: media & arts, robotics/AI, transportation

A new AI system can create natural-sounding speech and music after being prompted with a few seconds of audio.

AudioLM, developed by Google researchers, generates audio that fits the style of the prompt, including complex sounds like piano music, or people speaking, in a way that is almost indistinguishable from the original recording. The technique shows promise for speeding up the process of training AI to generate audio, and it could eventually be used to auto-generate music to accompany videos.

Oct 7, 2022

How limitless green energy would change the world

Posted by in categories: energy, sustainability

Limitless renewable energy would offer tantalising benefits: emissions-free heating, greener fertiliser and electric transport. But overcoming the obstacles will not be easy.

Oct 7, 2022

Early signs a new U.S. COVID surge could be on its way

Posted by in category: biotech/medical

Here we go again. The virus is starting to surge in many European countries and there are early signs a wave may be starting in the U.S. too.

Oct 7, 2022

Amazon Abandons Home Delivery Robot Tests in Latest Cost Cuts

Posted by in categories: habitats, robotics/AI

Amazon.com Inc. is shutting down tests of its home delivery robot, the latest sign that the e-commerce giant is starting to wind down experimental projects amid slowing sales growth.

Oct 7, 2022

New form of silicon could revolutionize semiconductor industry

Posted by in categories: engineering, nanotechnology

After a 10-year research study that started by accident and was met with skepticism, a team of Northeastern University mechanical engineers was able to synthesize highly dense, ultra-narrow silicon nanowires that could revolutionize the semiconductor industry. Their research appears in Nature Communications.

Yung Joon Jung, Northeastern professor of mechanical and industrial engineering, says it might have been his favorite research project.

“Everything is new, and it required a lot of perseverance,” says Jung, who specializes in engineering and application of nanostructure systems and previously studied carbon nanotubes.

Oct 7, 2022

Light-based therapy weakens antibiotic-resistant bacteria

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

Antibiotics are standard treatments for fighting dangerous bacterial infections. Yet the number of bacteria developing a resistance to antibiotics is increasing. Researchers from Texas A&M University and the University of São Paulo are overcoming this resistance with light.

The researchers tailored antimicrobial (aPDT)—a chemical reaction triggered by visible light—for use on strains. Results showed the treatment weakened to where low doses of current antibiotics could effectively eliminate them.

“Using aPDT in combination with antibiotics creates a synergy of interaction working together for a solution,” said Vladislav Yakovlev, University Professor in the Department of Biomedical Engineering at Texas A&M and co-director of the project. “It’s a step in the right direction against resistant bacteria.”

Oct 7, 2022

Optical foundations illuminated

Posted by in category: quantum physics

Optics, the study of light, is one of the oldest fields in physics and has never ceased to surprise researchers. Although the classical description of light as a wave phenomenon is rarely questioned, the physical origins of some optical effects are. A team of researchers at Tampere University have brought the discussion on one fundamental wave effect, the debate around the anomalous behavior of focused light waves, to the quantum domain.

The researchers have been able to show that quantum waves behave significantly differently from their classical counterparts and can be used to increase the precision of distance measurements. Their findings also add to the discussion on physical of the anomalous focusing behavior. The results are now published in Nature Photonics.

“Interestingly, we started with an idea based on our earlier results and set out to structure for enhanced measurement precision. However, we then realized that the underlying physics of this application also contributes to the long debate about the origins of the Gouy phase anomaly of focused light fields,” explains Robert Fickler, group leader of the Experimental Quantum Optics group at Tampere University.

Oct 7, 2022

Nobel Prize: Quantum Entanglement Unveiled

Posted by in categories: computing, encryption, quantum physics

The 2022 Nobel Prize in Physics honors research on the foundations of quantum mechanics, which opened up the quantum information frontier.

7 October 2022: We have replaced our initial one-paragraph announcement with a full-length Focus story.

The Nobel Prize in Physics this year recognizes efforts to take quantum weirdness out of philosophy discussions and to place it on experimental display for all to see. The award is shared by Alain Aspect, John Clauser, and Anton Zeilinger, all of whom showed a mastery of entanglement—a quantum relationship between two particles that can exist over long distances. Using entangled photons, Clauser and Aspect performed some of the first “Bell tests,” which confirmed quantum mechanics predictions while putting to bed certain alternative theories based on classical physics. Zeilinger used some of those Bell-test techniques to demonstrate entanglement control methods that can be applied to quantum computing, quantum cryptography, and other quantum information technologies.

Oct 7, 2022

Facebook Detects 400 Android and iOS Apps Stealing Users Log-in Credentials

Posted by in categories: robotics/AI, security

Meta security team has identified more than 400 malicious Android and iOS apps that have stolen users’ Facebook login credentials.