The elastodynamic equations for inhomogeneous media are crucial to the seismology, the NDT of composites, the elastic metamaterials, etc. Recently, Dr. XIANG Zhihai from the Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University found out that the accurate elastodynamic equations for inhomogeneous media should incorporate the gradient of pre-stresses.
Mechanical property of granular materials in landslide is of great significance. A recent research demonstrates that the numerical triaxial apparatus based on discrete element method is able to simulate and reproduce the triaxial tests in laboratory, which is published in Science China: Physics Mechanics & Astronomy 2014 vol.57(12) by professor Jiachun Li from Institute of Mechanics, Chinese Academy of Sciences. The title is "Simulation of triaxial response of granular materials by modified DEM".
Researchers at EPFL have studied strange quantum events taking place in an innovative superconducting material, paving the way to understand high-temperature superconductivity better.
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Physicists at the University of Arkansas have led an international team of scientists in a study to characterise the magnetic and electronic structure in transition metal oxides.
Researchers from the University of Oregon (UO) have conducted a spectroscopy experiment by illuminating four laser light pulses on nanoparticle photocells. This new research, which has been published in the Nature Communications journal, has provided an insight into the mechanism of converting captured sunlight into electricity.
The lithium-ion batteries that mobilize our electronic devices need to be improved if they are to power electric vehicles or store electrical energy for the grid. Berkeley Lab researchers looking for a better understanding of liquid electrolyte may have found a pathway forward. A team led by Richard Saykally, a chemist with Berkeley Lab’s Chemical Sciences Division, David Prendergast, a theorist with Berkeley Lab’s Molecular Foundry, and Steven Harris, a chemist with the Lab’s Materials Sciences Division, found surprising results in the first X-ray absorption spectroscopy study of a model lithium electrolyte.
An engineering team from the Kansas State University has unveiled certain vital properties of graphene oxide, which can enhance flexible batteries made of sodium and lithium-ions.
Scientists at EPFL have developed a simple and innovative method to make nanowires from perovskite material, which could aid in enhancing the efficiency of solar cells.
A research team has reported that optoelectronic networks inspired by natural structures like leaves and spider webs perform four times as well as conventional designs.
A team of researchers from UK and China have designed a novel sulfur cathode wrapped with graphene for rechargeable lithium-sulfur batteries. Dr. Vasant Kumar from the University of Cambridge and Professor Renjie Chen from the Beijing Institute of Technology have led the research team in this project.
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