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R. Che

As seen in: Wiley Online Library
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Articles by R. Che

Tunable electromagnetic properties via dealloying in FeCoNiCuAl high-entropy alloys for efficient electromagnetic-wave absorption

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By Guangdong Academy, R. Che, G. Ma
| American Institute of Physics
Topics Electromagnetism, Corrosion, Crystal structure, Dielectric properties, Alloys, Materials synthesis and processing, Materials properties, Porous media, X-ray diffraction, Chemical solutions Electromagnetic radiation has become increasingly serious due to numerous electronic device applications, which threaten human health and communication security.1–4 Electromagnetic-wave (EMW) absorbing materials, which can dissipate EMW energy, have attracted much attention for addressing...
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MAPMaN: Multi‐Stage U‐Shaped Adaptive Pattern Matching Network for Semantic Segmentation of Remote Sensing Images

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By T. Hong, X. Ma, X. Wang, R. Che
| Wiley Online Library Verified
Supporting Information Filename Description cgf14978-sup-0001-S1.zip13.9 MB Supporting Information References , , , : Generating long sequences with sparse transformers. arXiv preprint arXiv:1904.10509 (2019). 2 , , , , : Remote sensing images background noise processing method for ship objects in instance segmentation. Journal of the Indian Society of Remote Sensing (2023), 1–13. 1 , , , , : Encoder-decoder with atrous separable convolution for semantic image segmentation.
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A doping strategy to achieve synergistically tuned magnetic and dielectric properties in MoSe2 for broadband electromagnetic wave absorption

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By R. Che
| American Institute of Physics
Advanced electromagnetic (EM) wave absorbing materials are essential to tackle the even-increasing EM interference and pollution. Conventional methods usually combine magnetic and dielectric components for optimized impedance matching and attenuation. It is, however, challenging to simultaneously tune magnetic and dielectric properties with one wane and the other wax by adjusting the ratio between the corresponding components.
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A physics investigation on impedance matching theory in microwave absorption film-Part I. Theory

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By Shenyang Normal, Michael B, R. Che
| American Institute of Physics
IM is designed to explain the minimum peaks of RL/dB by Zin = Z0 while QWM is closely related to IM and purports to explain a set of related minima of |RL| in that the associated values of d and ν for each peak are defined as matching thickness and frequency, respectively.27 However, the QWM is flawed because the phase effects from interfaces are ignored5,22 and the theory should be replaced by an inverse relationship.10 An intuitive analysis is provided in SM3.
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High-entropy enhanced microwave absorption in MAX phases

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By Huaibei Normal, B. B. Ma, B. B. Y. Ma, R. Che
| American Institute of Physics
In general, there are three important parameters including the minimum reflection loss (RL), the effective bandwidth (EAB) (the corresponding frequency band where RL < −10 dB, it means 90% electromagnetic wave is effectively absorbed by materials and only 10% is reflected), and the absorber thickness to evaluate the performance of microwave absorption (MA) materials.29 Good MA materials require low RL, wide EAB, and thin service thickness.
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