Results 131 to 140 of about 6,270 (199)

The development and analysis of conductive nonwoven carbon fibre veils for electromagnetic shielding applications [PDF]

Electromagnetic interference (EMI) is a growing problem in the modern world and as the number of devices and their operating frequencies increase so do the issues associated with EMI.The aim of this study is to understand and quantify the main parameters
Austin, Andrew N.
core  

Advanced Functional Electromagnetic Shielding Materials: A Review Based on Micro-Nano Structure Interface Control of Biomass Cell Walls

Nano-Micro Letters
Highlights The advantages of biomass materials for electromagnetic interference (EMI) shielding are analyzed, the mechanism of EMI shielding is summarized, and the factors affecting EMI shielding are analyzed systematically.
Yang Shi, Mingjun Wu, Shengbo Ge, Jianzhang Li, Anoud Saud Alshammari, Jing Luo, Mohammed A. Amin, Hua Qiu, Jinxuan Jiang, Yazeed M. Asiri, Runzhou Huang, Hua Hou, Zeinhom M. El-Bahy, Zhanhu Guo, Chong Jia, Kaimeng Xu, Xiangmeng Chen   +16 more
doaj   +1 more source

Analysis of Electromagnetic Interference (EMI) in Power Transistors in relation to Temperature

Detta examensarbete undersöker hur temperaturvariationer påverkar elektromagnetiska störningar (EMI) i transistorer inom kraftelektronik. Effekttransistorer används i stor utsträckning i kraftomvandlare såsom växelriktare, och deras egenskaper förändras ...
Nadji, Zaid, Abood, Hasen
core   +1 more source

Lightweight Polyurethane–Polythiophene–MWCNT Nanocomposite Foams With Enhanced Electromagnetic Interference Shielding Efficiency and Mechanical, Thermal, and Electrical Properties

International Journal of Polymer Science
Electromagnetic interference (EMI) has been recognized as a new sort of pollution and can be considered the direct interference of electromagnetic waves among electronic equipment that frequently affects their typical efficiency.
Mahboobeh Bidshahri, Abolhasan Ameri, Mehdi Sharif, Amir Ranjbar   +3 more
doaj   +1 more source

Electromagnetic interference (EMI) profile of work areas within DLSU-Manila campus

, 2000
This thesis provides experimental data and results on the electromagnetic interference (EMI) levels of personal computers within the DLSU-Manila Campus specifically radiated emissions.
De La Paz, Dan Carlo I., Olmedo, Ronald Allan, Marcos, Edralin A., Carreon, Christopher R.   +3 more
core  

Test design for electromagnetic disturbance-induced failure of the digital circuits in smart electricity meters

四川大学学报. 自然科学版
In practical operating environments， smart electricity meters are often subjected to severe electromagnetic interference （EMI）. Such interference can be coupled into the meter’s circuitry through electromagnetic induction， electrostatic discharge， or ...
WANG Xiaodong, LI Xuecheng, XIE Jinjun, WANG Cong, ZHANG Yuguan   +4 more
doaj  

Fabrication of carbon nanotube buckypaper/polymer nanofiber composite hybrid film for high-performance electromagnetic interference (EMI) shielding

, 2020
In the high-tech industry, the electromagnetic interference (EMI) issues can be called the electromagnetic environment in terms of global environment.
Minbeom Kim
core  

Opportunities and Challenges of Biomass-based Electromagnetic Shielding Materials

BioResources
Biomass with its abundance, renewability, and processability has been extensively studied and utilized for developing electromagnetic interference (EMI) shielding materials as an alternative to non-renewable metal-based EMI shielding materials.
Jinlong Zhang, Shiyu Fu
doaj  

Signal-to-Noise Ratio : Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI)

This dichotomy is quantified by one of the most ubiquitous and critical metrics in all of science and engineering: the Signal-to-Noise Ratio (SNR). It is a measure that transcends disciplines, providing a universal language to describe the clarity, quality, and reliability of information. Whether deciphering the faint signals from a distant spacecraft,
openaire   +1 more source

Conducted emission improvement of AC variable speed drives

, 1997
This paper deals with the problem of conducted electromagnetic interference (EMI) emission produced by pulse width modulation (PWM) inverter system. It is determined that the inverter system generates considerable impulse current through the power leads ...
Hellany, Ali (R8993), Nagrial, Mahmood H. (R8279)   +1 more
core