[Images above] Credit: NIST
An international collaboration of scientists from Berlin, Montpellier, Nantes, Paris, and Ithaca presents detailed experimental and theoretical results on ultrafast dynamics of coupled phonons in few-layer hexagonal boron nitride.
Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences developed a metasurface that uses very deep, very narrow holes rather than very tall pillars to focus light to a single spot.
Rice University engineers created nanostructures of silica with a sophisticated 3D printer, demonstrating a method to make microscale electronic, mechanical, and photonic devices from the bottom up.
Researchers from Michigan Technological University added carbon nanotubes to a nanoclay and epoxy nanocomposite ink to enhance mechanical properties.
Nara Institute of Science and Technology researchers extended the mathematical approach of automatic differentiation from machine learning to the fitting of model parameters that describe behavior of metal oxide semiconductor field-effect transistors. They extracted parameters up to 3.5 times faster compared with previous methods.
Researchers examined diurnal and seasonal patterns of wind speeds and their impact on the adequacy of energy production. The results helped them develop a seasonal adequacy assessment procedure.
A team of materials scientists and chemists determined the proper stack pressure that lithium metal batteries need to be subjected to during battery operation in order to produce optimal performance.
New research from the University of Technology Sydney found that pathogens that form biofilms can evolve to survive nanosilver treatment. The study is the first to demonstrate that long-term nanosilver treatment can increase the risk of recurrent infections.
Using crop distribution patterns in 2017, researchers from Lancaster University and the University of Reading found that deploying honeybees on solar parks could have raised the value of crop yields that year by £5.9 million.
After analyzing the growth rates of wind and solar power in 60 countries, researchers at Chalmers University of Technology and Lund University in Sweden and Central European University in Vienna, Austria, concluded that virtually no country is moving sufficiently fast to avoid global warming of 1.5°C or even 2°C.
Researchers from Korea and the U.S. conducted a 13-year long experiment to determine if fiber reinforced polymer composites are a temporary patch or a durable solution to sustain concrete infrastructure. They found that environmental conditions had a significant impact on bond behavior.
Northwestern University researchers analyzed ancient zeolite specimens collected from the edges of East Iceland to discover that zeolites separate calcium isotopes in a wholly unexpected way.
By combining a careful balance of thin-film strain, distortion, and thickness, University of New South Wales researchers stabilized a new intermediate phase in BiFeO3. They plan to combine the approach to oxide superlattices, as well as combining the low symmetry crystal structures with other established routes for improving piezoresponse.
Researchers at Chalmers University of Technology, Sweden, created a new type of super-stable, durable glass by mixing many different molecules, up to eight at a time. They worked with a series of small, conjugated molecules comprising a perylene core with different pendant alkyl groups at one of the bay positions.
An international team of researchers led by University of Minnesota found that deformations in strontium titanate can cause imperfections in its crystal structure that can actually improve the material’s superconducting and electrical properties.
Researchers from the Beijing Institute of Control Engineering provided backstage details of the technology that helped guide, navigate, and control the successful lunar landing of the Chang’e-5 lunar mission, the first lunar sample-return mission in over 40 years.
A team of Russian physicists proved the quantum adiabatic theorem at a finite temperature and identified quantitative conditions for adiabatic dynamics. They discovered that in some systems, the adiabatic dynamics were even more stable at a finite temperature than at absolute zero.