ScienceDaily: Computers & Math News |
| When a band falls flat: Searching for flatness in materials Posted: 30 Mar 2022 11:14 AM PDT The world's first catalog of flat band materials could reduce the serendipity in the search for new materials with exotic quantum properties, such as magnetism and superconductivity, with applications in memory devices or in long-range dissipationless transport of power. |
| SARS-CoV-2 spike protein more stable, slower changing than earlier version Posted: 30 Mar 2022 11:13 AM PDT New computational simulations of the behavior of SARS-CoV-1 and SARS-CoV-2 spike proteins prior to fusion with human cell receptors show that SARS-CoV-2, the virus that causes COVID-19, is more stable and slower changing than the earlier version that caused the SARS epidemic in 2003. |
| Posted: 30 Mar 2022 08:13 AM PDT Power functional theory is a new approach that makes it possible to describe precisely the dynamics of many-particle systems over time. |
| Researchers find topological phenomena at high, technologically relevant frequencies Posted: 30 Mar 2022 07:33 AM PDT A new study describes topological control capabilities in an acoustic system at high technologically relevant frequencies. This work has implications for applications such as 5G communications and quantum information processing. |
| An automatic information extraction system for scientific articles on COVID-19 Posted: 30 Mar 2022 07:32 AM PDT VIGICOVID is a system that uses natural language questions to get answers in the avalanche of information on COVID-19 and SARS-CoV-2. |
| Engineering the quantum states in solids using light Posted: 30 Mar 2022 07:31 AM PDT A research team has developed a platform that can control the properties of solid materials with light and measure them. |
| Posted: 29 Mar 2022 11:25 AM PDT Researchers presented the results of efforts to perform global full waveform inversions of the Earth using the Frontera supercomputer. They used data from 300 earthquakes to construct the new global full wave inversion models that include attenuation and azimuthal anisotropy and approach continental-scale resolution. The researchers also recently released a visualization toolbox for large seismic model files and are building a platform for seismic analysis. |
| New software to help discover valuable compounds Posted: 29 Mar 2022 11:25 AM PDT Because the comparative metabolomics field lacks sophisticated data analysis tools that are available to genomics and proteomics researchers, metabolomics researchers spend a lot of time hunting for candidate compounds that could be useful as leads for the development of new pharmaceuticals or agrochemicals. To solve this problem, scientists have developed Metaboseek, a free, easy-to-use app that integrates multiple data analysis features for the metabolomics community. |
| How eye imaging technology could help robots and cars see better Posted: 29 Mar 2022 08:47 AM PDT Using lessons learned from the eye-imaging technology optical coherence tomography (OCT), engineers have demonstrated a LiDAR system that is fast and accurate enough to potentially improve the vision of autonomous systems such as driverless cars and robotic manufacturing plants. |
| AI helps radiologists detect bone fractures Posted: 29 Mar 2022 08:47 AM PDT Artificial intelligence (AI) is an effective tool for fracture detection that has potential to aid clinicians in busy emergency departments, according to a new study. |
| Quantum information theory: Quantum complexity grows linearly for an exponentially long time Posted: 28 Mar 2022 12:06 PM PDT Physicists know about the huge chasm between quantum physics and the theory of gravity. However, in recent decades, theoretical physics has provided some plausible conjecture to bridge this gap and to describe the behavior of complex quantum many-body systems -- for example, black holes and wormholes in the universe. Now, researchers have proven a mathematical conjecture about the behavior of complexity in such systems, increasing the viability of this bridge. |
| Chaos theory provides hints for controlling the weather Posted: 28 Mar 2022 07:13 AM PDT Researchers have used computer simulations to show that weather phenomena such as sudden downpours could potentially be modified by making small adjustments to certain variables in the weather system. They did this by taking advantage of a system known as a 'butterfly attractor' in chaos theory, where a system can have one of two states -- like the wings of a butterfly -- and that it switches back and forth between the two states depending on small changes in certain conditions. |
| Posted: 25 Mar 2022 06:38 AM PDT Researchers used mathematical methods to compensate for changes in the natural illumination during the course of long-exposure scan of stained-glass windows. This approach may help digitize other cultural artifacts more accurately. |
| Getting warmer: Improving heat flux modeling Posted: 24 Mar 2022 07:45 AM PDT Researchers used molecular dynamics simulations to model heat transport at atomic scales. This allowed the three-dimensional structure responsible for the heat flux to be visualized. The work may lead to new techniques in the production of nanotech devices and microfluidic chips. |
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