نتایج جستجو برای: electromagnetic interference shielding

تعداد نتایج: 177575  

2007
Yi Huang Ning Li Yanfeng Ma Feng Du Feifei Li Xiaobo He Xiao Lin Hongjun Gao Yongsheng Chen

Three types of single-walled carbon nanotube (SWCNT) homogeneous epoxy composites with different SWCNT loadings (0.01–15%) have been evaluated for electromagnetic interference (EMI) shielding effectiveness (SE) in the X-band range (8.2–12.4 GHz). The effect of the SWCNT structure including both the SWCNT aspect ratio and wall integrity, on the EMI SE have been studied and are found to correlate...

Journal: :Physical chemistry chemical physics : PCCP 2015
Meenakshi Verma Avanish Pratap Singh Pradeep Sambyal Bhanu Pratap Singh S K Dhawan Veena Choudhary

There is an increased interest in the development of high performance microwave shielding materials against electromagnetic pollution in recent years. Barium ferrite decorated reduced graphene oxide (BaFe12O19@RGO) nanocomposite was synthesized by a high energy ball milling technique and its electromagnetic properties were investigated in the frequency range of 12.4-18 GHz (Ku band). The result...

ژورنال: سلامت کار ایران 2016

Background and aims: X-band with 8-12.5 frequencies range has various applications such as air control traffic, navy communication and etc. Uncontrolled exposure with microwave can lead to adverse effect on workers. Application of the shielding is superior control for prevention of microwave exposure, now. This study investigated the effect of dispersion on shielding effectiveness improvement a...

2014
Y. S. Lee F. Malek E. M. Cheng W. W. Liu F. H. Wee M. N. Iqbal Z. Liyana B. S. Yew F. S. Abdullah

Abstract—This paper presents the electromagnetic interference (EMI) shielding effectiveness of rice husk and carbon nanotubes (RHCNTs) composites in the X-band region (8.2-12.4 GHz). The difference weight ratio of carbon nanotubes (CNTs) were mix with the rice husk. The rectangular waveguide technique was used to measure the complex permittivity of the RHCNTs composites materials. The complex p...

Journal: : 2023

In this paper, investigated one of the way protecting information from its leakages through technical channels, such as shielding. The first part work mainly consider theoretical principles shielding, definition and process types, main task shield, highlighted concept shielding efficiency, presented dependence for calculating efficiency electromagnetic provided shields classification according ...

Journal: :IBM Journal of Research and Development 2001
Marie Angelopoulos

Conjugated polymers in the nondoped and doped conducting state have an array of potential applications in the microelectronics industry. Conducting polymers are effective discharge layers as well as conducting resists in electron beam lithography, find applications in metallization (electrolytic and electroless) of plated through-holes for printed circuit board technology, provide excellent ele...

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