Results 51 to 60 of about 6,270 (199)

Flexible and fire safe sandwich structured composites with superior electromagnetic interference shielding properties

, 2022
The integration of outstanding flame retardancy and electromagnetic interference shielding effectiveness (EMI SE) in polymers is highly desirable for practical applications.
Fu, Libi, Pingan Song, Feng, Yuezhan, Yang, Fuqiang, Lv, Yuancai, Minghua Liu, Fuqiang Yang, Yuancai Lv, Chen, Kexin, Shi, Yongqian, Bin Yu, Libi Fu, Wang, Hengrui, Yongqian Shi, Hengrui Wang, Liu, Miao, Miao Liu, Yuezhan Feng, Yu, Bin, Song, Pingan, Kexin Chen, Liu, Minghua   +21 more
core   +1 more source

Wireless, Adaptable and Fully Implantable Battery‐powered Devices for Optical Stimulation of the Spinal Cord in Small Rodents

Advanced Science, EarlyView.
Current technologies for spinal cord optogenetic stimulation rely on external power sources and face reliability constraints in freely behaving animals. Here, a fully implantable, battery‐powered optoelectronic device is introduced, enabling operation in any selected environment with wireless recharging for months‐long stimulation.
Shahriar Shalileh, Adan Moallemi, Elham Mohseni Vadeghani, Samuel Tretjakov, Brianna Tsuyuki, Alexander Golab, Benjamin Rever, Wolfram Tetzlaff, Dena Shahriari   +8 more
wiley   +1 more source

Tailoring Successive Magnetic‐Dielectric Synergy for Enhancing Electromagnetic Absorption in Ultralong Heterostructure Chains Assisted by High Static Magnetic Field

Advanced Science, EarlyView.
This work proposes a high static magnetic field (HSMF) driven dual‐low‐dimension strategy for fabricating magnetic‐dielectric heterostructure (Fe3O4@MoS2) chains with programmable lengths. The constructed successive magnetic‐dielectric synergy, arising from uniaxial anisotropy‐enhanced magnetic response and abundant heterointerfaces that boost ...
Zhuolin Li, Meilong Feng, Wenbo Gao, Tianxiang Zheng, Wenhao Lin, Yunbo Zhong   +5 more
wiley   +1 more source

Polypropylene Nanocomposite Filled with Spinel Ferrite NiFe₂O₄ Nanoparticles and In-Situ Thermally-Reduced Graphene Oxide for Electromagnetic Interference Shielding Application

Nanomaterials, 2019
Herein, we presented electromagnetic interference shielding characteristics of NiFe2O4 nanoparticles—in-situ thermally-reduced graphene oxide (RGO)—polypropylene nanocomposites with the variation of reduced graphene oxide content.
Raghvendra Singh Yadav, Ivo Kuřitka, Jarmila Vilčáková, Michal Machovský, David Škoda, Pavel Urbánek, Milan Masař, Marek Gořalik, Michal Urbánek, Lukáš Kalina, Jaromir Havlica   +10 more
doaj   +1 more source

Self‐Assembly Ordered Layered Gels for Thermochromic Smart Windows With Excellent Electromagnetic Shielding Properties

Advanced Science, EarlyView.
Metal‐ion‐coupled self‐assembled layered gels were prepared using a simple sol–gel method, successfully integrating electromagnetic shielding and thermochromic functions into the material. SCa‐1, which exhibits the best overall performance, achieves an electromagnetic shielding efficiency of up to 72.49 dB, while maintaining a visible light ...
Shusheng Wang, Zijing Li, Shengchong Hui, Hongjing Wu, Shanshan Liang, Fusong Yuan, Limin Zhang   +6 more
wiley   +1 more source

Multi-hierarchical flexible composites towards superior fire safety and electromagnetic interference shielding

, 2022
Vast amounts of electromagnetic waves are generated in modern society, which severely endanger human health and cause instrument disturbance. Furthermore, practical application of electromagnetic shielding polymer-based materials aspires to flame ...
Wang, Hengrui, Fu, Libi, Liu, Miao, Feng, Yuezhan, Song, Pingan, Chen, Kexin, Shi, Yongqian   +6 more
core   +1 more source

Unidirectional Evaporation‐Induced Tunable and Continuous Gradient Composite Structure for Absorption‐Dominant Electromagnetic Interference Shielding

Advanced Science, EarlyView.
A continuous conductivity gradient is formed in a porous MXene/melamine foam via directional evaporation, thereby improving impedance matching and enhancing electromagnetic attenuation. The resulting monolithic composite delivers absorption‐dominant EMI shielding with ultralow reflection, offering a simple route toward lightweight EMI shielding ...
Dawei Zhang, Yan Zhang, Baosong Li, Abdallah Kamal, Haider Butt, Kin Liao, Lianxi Zheng   +6 more
wiley   +1 more source

Testing and Analyzing of EMI in Central Substation of Coal Mine Underground

Gong-kuang zidonghua, 2010
Through testing and analyzing electromagnetic environment of central substation of coal mine underground, following conclusions were gotten: 1 There is low-frequency interference nearby high-voltage switch during normal operation of equipments in central
SUN Ji-ping, WANG Fu-zeng
doaj  

Lightweight MXene Composite Films with Hollow Egg‐Box Structures: Enhanced Electromagnetic Shielding Performance Beyond Pure MXene

Advanced Science
MXene is widely used in the electromagnetic interference (EMI) shielding field. However, the high electromagnetic reflectivity of pure MXene causes potential secondary EMI pollution.
Yijie Wang, Chenxiang Zhao, Yunze Tian, Yue Sun, Mengfei Zhang, Kangjing Wang, Bihua Xia, Yang Wang, Ting Li, Xuhui Zhang, Jing Huang, Shibo Wang, Weifu Dong, Jinliang Qiao   +13 more
doaj   +1 more source

Contribuição à análise de interferência e compatibilidade eletromagnética em circuito digital através de simulação numérica [PDF]

, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2011O presente trabalho tem como objetivo analisar os fenômenos eletromagnéticos que podem causar ...
Moura, Diego de
core