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ScienceDaily: Top Technology News

Sweat holds most promise for noninvasive testing Near-perfect performance in low-cost semiconductors Seeing through a robot's eyes helps those with profound motor impairments Nanocrystal 'factory' could revolutionize quantum dot manufacturing Quantum sensing method measures minuscule magnetic fields Research set to shake up space missions Design and validation of world-class multilayered thermal emitter using machine learning Cause of cathode degradation identified for nickel-rich materials New wheel units could bring vehicle costs down Scientists track patterns of island growth in crystals Sea quark surprise reveals deeper complexity in proton spin puzzle Exotic 'second sound' phenomenon observed in pencil 'lead' Are we at the limits of measuring water-repellent surfaces

Sweat holds most promise for noninvasive testing

Posted: 15 Mar 2019 12:55 PM PDT

Medical researchers have been creating new sensors on a wearable patch the size of a Band-Aid that stimulates sweat even when a patient is cool and resting. The sensor measures specific analytes over time that doctors can use to determine how the patient is responding to a drug treatment.

Near-perfect performance in low-cost semiconductors

Posted: 15 Mar 2019 12:55 PM PDT

Researchers redefine what it means for low-cost semiconductors, called quantum dots, to be near-perfect and find that quantum dots meet quality standards set by more expensive alternatives.

Seeing through a robot's eyes helps those with profound motor impairments

Posted: 15 Mar 2019 12:54 PM PDT

An interface system that uses augmented reality technology could help individuals with profound motor impairments operate a humanoid robot to feed themselves and perform routine personal care tasks such as scratching an itch and applying skin lotion. The web-based interface displays a 'robot's eye view' of surroundings to help users interact with the world through the machine.

Nanocrystal 'factory' could revolutionize quantum dot manufacturing

Posted: 15 Mar 2019 08:59 AM PDT

A new system for synthesizing quantum dots across the entire spectrum of visible light drastically reduces manufacturing costs, can be tuned on demand to any color and allows for real-time process monitoring to ensure quality control.

Quantum sensing method measures minuscule magnetic fields

Posted: 15 Mar 2019 08:59 AM PDT

A new technique uses quantum sensors to enable precise measurements of magnetic fields in different directions.

Research set to shake up space missions

Posted: 15 Mar 2019 07:00 AM PDT

A new study has found a number of 2D materials can not only withstand being sent into space, but potentially thrive in the harsh conditions.

Design and validation of world-class multilayered thermal emitter using machine learning

Posted: 15 Mar 2019 07:00 AM PDT

Scientists designed a multilayered metamaterial that realizes ultra-narrowband wavelength-selective thermal emission by combining the machine learning (Bayesian optimization) and thermal emission properties calculations (electromagnetic calculation). The joint team then experimentally fabricated the designed metamaterial and verified the performance. These results may facilitate the development of highly efficient energy devices.

Cause of cathode degradation identified for nickel-rich materials

Posted: 15 Mar 2019 06:58 AM PDT

A team of scientists have identified the causes of degradation in a cathode material for lithium-ion batteries, as well as possible remedies. Their findings could lead to the development of more affordable and better performing batteries for electric vehicles.

New wheel units could bring vehicle costs down

Posted: 15 Mar 2019 06:58 AM PDT

Vehicles could be affordably produced for a wide variety of specialized purposes using a sophisticated wheel unit.

Scientists track patterns of island growth in crystals

Posted: 15 Mar 2019 06:58 AM PDT

Scientists have found that the seemingly random arrangement of islands that form to begin new layers during crystal growth can actually be very similar from layer to layer. The discovery may help scientists better understand of some of the mechanisms behind defect formation, as well as develop techniques to synthesize new types of crystals.

Sea quark surprise reveals deeper complexity in proton spin puzzle

Posted: 14 Mar 2019 04:26 PM PDT

New data from the STAR experiment at the Relativistic Heavy Ion Collider (RHIC) add detail -- and complexity -- to an intriguing puzzle that scientists have been seeking to solve: how the building blocks that make up a proton contribute to its spin. The results reveal that different 'flavors' of antiquarks contribute differently to the proton's overall spin -- and in a way that's opposite to those flavors' relative abundance.

Exotic 'second sound' phenomenon observed in pencil 'lead'

Posted: 14 Mar 2019 12:16 PM PDT

At relatively balmy temperatures, heat behaves like sound when moving through graphite, study reports.

Are we at the limits of measuring water-repellent surfaces

Posted: 14 Mar 2019 12:16 PM PDT

As we develop extremely liquid repellent surfaces, the errors in existing measurement techniques are getting too large.

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