Results 11 to 20 of about 23,270 (215)

Application of Cross-hole Electromagnetic Wave Tomography in Three Dimensional Spatial Distribution of Karst

open access: yesCT Lilun yu yingyong yanjiu, 2022
Karst development in limestone areas holds great potential hazards to the urban construction, Using the conventional way of drilling, it is difficult to fully identify the characteristics and scale of underground Karst development in urban Karst ...
Xiaohu DENG, Yanlin FU
doaj   +1 more source

NiMnO3 Anchored on Reduced Graphene Oxide Nanosheets: A New High-Performance Microwave Absorbing Material

open access: yesNanomaterials, 2022
With the increasing influence of electromagnetic radiation on precision instruments and organisms, there is an urgent need for research on lightweight and high-strength electromagnetic wave absorbing materials.
Pin Zhang   +5 more
doaj   +1 more source

Enhanced electromagnetic wave absorption property of binary ZnO/NiCo2O4 composites

open access: yesJournal of Advanced Ceramics, 2021
Nowadays, metal oxide-based electromagnetic wave absorbing materials have aroused widely attentions in the application of telecommunication and electronics due to their selectable mechanical and outstanding dielectric properties.
Bin Du   +5 more
doaj   +1 more source

Enhanced electromagnetic wave absorption performance of Ni–Zn ferrite through the added structural macroporosity

open access: yesJournal of Materials Research and Technology, 2022
Progressive utilization of wireless communications necessitates the use of electromagnetic wave absorber materials to assure a healthy environment for both devices and human beings by reducing the electromagnetic waves interference pollution. Nickel-zinc
M. Derakhshani   +3 more
doaj   +1 more source

Multiprincipal Element M2FeC (M = Ti,V,Nb,Ta,Zr) MAX Phases with Synergistic Effect of Dielectric and Magnetic Loss

open access: yesAdvanced Science, 2023
Electromagnetic (EM) wave pollution is harmful to human health and environment, thus it is absolutely important to develop new electromagnetic wave absorbing materials.
Lu Chen   +11 more
doaj   +1 more source

Lattice composites with embedded short carbon fiber/Fe3O4/epoxy hollow spheres for structural performance and microwave absorption

open access: yesMaterials & Design, 2020
Lightweight absorption materials with superior mechanical properties have received significant attention owing to their potential for use in military stealth and electromagnetic protection applications. Herein, a novel electromagnetic (EM) wave absorbing
Yingjie Qiao   +8 more
doaj   +1 more source

Responses of Polystyrene/MWCNT Nanocomposites to Electromagnetic Waves and the Effect of Nanotubes Dispersion [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2014
Electromagnetic compatibility (EMC) and electromagnetic interference (EMI) have emerged as key issues with respect to commercial and military purposes in association with electromagnetic waves.
Ehsan Aghajari   +4 more
doaj   +1 more source

Electromagnetic wave absorbing and bending properties of 3D gradient structured woven composites: experiment and simulation

open access: yesJournal of Industrial Textiles, 2023
In order to prepare 3D structural composites with electromagnetic wave absorption and load-bearing, 3D gradient structured woven fabrics were woven with basalt fiber filament yarn and carbon fiber filament yarn as raw materials on a common loom with ...
Wenbin Yao   +5 more
doaj   +1 more source

Research on three-dimensional forward modeling of underground radio wave perspective and electromagnetic wave propagation characteristics

open access: yesMeikuang Anquan
The theory of electromagnetic wave propagation in strata is the basis for underground radio wave detection. There are differences in the propagation of electromagnetic waves in the strata when the detection frequency and coal seam occurrence change.
Chengzhong GAO, Yanqing WU
doaj   +1 more source

Synthesis of ultralight hollow SiC/C nanofiber for highly efficient electromagnetic wave absorption

open access: yesJournal of Advanced Ceramics
The development of multifunctional electromagnetic wave-absorbing materials capable of operating in complex environments has become critically important in the field of electromagnetic protection. However, achieving materials that combine high absorption
Yun-Tian Chen   +8 more
doaj   +1 more source

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