hard X-ray wavesrectangular prism analogcollimated polychromatic radiation beamrefracting facesmall glancing angleside facediamond prismDispersive properties of natural diamonds were studied for the first time in a range of x-ray wavelengths of 0.03–0.2 nm. The dispersion element represented an analog ...
Hard X-raysVarious mechanisms have been proposed to explain how seismic waves can be generated during a solar flare, several of which include a major role for accelerated electrons. To address this question further, we have selected two samples of white-light flares (WLFs): one that has ...
Metasurfaces have promising potential to revolutionize a variety of photonic and electronic device technologies. However, metasurfaces that can simultaneously and independently control all electromagnetics (EM) waves’ properties, including amplitude, ph
Explore gamma rays. Learn the definition of a gamma ray and see its characteristics. Find the sources of gamma rays on Earth and outer space, and...
In late 2022, SARS-CoV-2 Omicron subvariants have become highly diversified, and XBB is spreading rapidly around the world. Our phylogenetic analyses suggested that XBB emerged through the recombination of two cocirculating BA.2 lineages, BJ.1 and BM.1.1
Liu et al. BMC Infectious Diseases (2024) 24:1009 https://doi.org/10.1186/s12879-024-09783-2 BMC Infectious Diseases RESEARCH Open Access Comparison of characteristics of children hospitalized for respiratory syncytial virus infection during the pre- and post-COVID-19 eras: a multicenter ...
(2002) have shown that over 90% of the annual rainfall in parts of the central Sahel are associated with organized convection during Boreal summer. Over west Africa and the eastern Atlantic, African Easterly Waves (AEWs) occur on a time scale of 3-6 days and are a fundamental component ...
Here, we mainly consider the below dynamical model, which can be used to explain some interesting (2 + 1)-dimensional waves of physics, namely, the (2 + 1)-dimensional Bogoyavlenski equation [22]. That is(0.1)4Ψt+Ψxxy-4Ψ2Ψy-4ΨxΦ=0,ΨΨy=Φx,in which the plenty of rese...
In addition, the effect of the hydrogen embrittlement on the DLC coating layer was analyzed by means of field emission scanning electron microscopy (FE-SEM, JSM-7500F, JEOL, Tokyo, Japan) and energy-dispersive X-ray spectroscopy (EDS, AZTec Energy, Oxford Instruments, Abingdon, UK) analyses....
Colonization of bacteria around native host cells or polymeric implant surfaces results in a dense growth on the surface, which leads to infection. The change of a bacterium from a motile planktonic to a nonmotile long chain of growing cells is a complex