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Environment
Researchers simulate how wildfires spread across a region
(a) Prediction of maximum incident heat flux due to direct flame contact to buildings during the Thomas Fire. (b) Prediction of maximum incident heat flux due to radiation to buildings during the Thomas Fire. The white line represents the observed fire perimeter. Credit: Dwi MJ Purnomo et al. More than 6,000 wildfires have been recorded in California already this year,…
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Physics
Researchers Simulate Novel Metal-Filtered VCSEL Mode Control
Structure of MMF-VCSEL. Credit: Sensors (2024). DOI: 10.3390/s24144700 A study led by researchers from the Changchun Institute of Optics, Precision Mechanics and Physics, Chinese Academy of Sciences, has revealed a new metal-dielectric film mode filter structure that allows for flexible control of the transverse modes of vertical-cavity surface-emitting lasers (VCSELs), demonstrating the potential of metal apertures for enhanced mode control…
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Science
A new strategy to simulate nonadiabatic dynamics of molecules on metal surfaces
Schematic workflow for nonadiabatic dynamics simulation of a molecule (e.g. CO) on a metal surface. Credit: Prof. Jiang’s team The team proposed a new approach to accurately describe the nonadiabatic dynamics of molecular electron transfer at metal surfaces. Their work was published in Physical Review Letters. Numerous experimental phenomena have demonstrated that nonadiabatic energy transfer is widespread in various interfacial…
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