Results 21 to 30 of about 23,458 (290)

Dynamic Control of Ultrathin Electromagnetic Absorber Using Active High Impedance Metasurfaces

Frontiers in Physics, 2021
In recent years, active metasurfaces have induced more interests, which provides great freedom of wave manipulation and gives rise to many novel phenomena.
Zeyong Wei, Zeyong Wei, Hongkun Li, Hongkun Li, Weijie Xu, Weijie Xu, Yang Cao   +6 more
doaj   +1 more source

Calculation of 220kV Transformer Bias Current Based on the Earth and Power Grid Model in the Metro Area [PDF]

E3S Web of Conferences, 2021
The metro stray current will be generated during subway operation, which will affect the electromagnetic environment near the subway, and then affect the surrounding 220kV transformer.
Chen Lu, Wang Longfei, Huang Hua, Liu Chunming, Wu Tianyi, Su Lei, Zhao Dandan   +6 more
doaj   +1 more source

Ultrafast control of moiré pseudo‐electromagnetic field in homobilayer semiconductors

Natural Sciences, 2022
In long‐wavelength moiré patterns of homobilayer semiconductors, the layer pseudospin of electrons is subject to a sizable Zeeman field that is spatially modulated from the interlayer coupling in moiré.
Dawei Zhai, Wang Yao
doaj   +1 more source

Switchable Metasurface With Broadband and Highly Efficient Electromagnetic Functionality

Frontiers in Physics, 2020
Electromagnetic metasurface is a kind of artificial electromagnetic structure, which can control the transmission, reflection, polarization and beam of electromagnetic wave within sub-wavelength thickness.
Zeyong Wei, Zeyong Wei, Xiaoqin Liu, Xiaoqin Liu, Yang Cao   +4 more
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Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper

Nanomaterials, 2023
This study aims to exploit the distinctive properties of carbon nanotube materials, which are particularly pronounced at the microscopic scale, by deploying fabrication techniques that allow their features to be observed macroscopically. Specifically, we
Jih-Hsin Liu, Yao-Sheng Huang
doaj   +1 more source

Effects of radiofrequency electromagnetic field exposure on sleep quality [PDF]

, 2013
The use of wireless communication devices, which emit radiofrequency electromagnetic fields (RF-EMF), has increased in the past decades. According to the World Health Organization (WHO) mobile phone use is ubiquitous with an estimated 4.6 billion ...
Mohler, Evelyn
core   +1 more source

Design of an Ultra-Low Voltage Bias Current Generator Highly Immune to Electromagnetic Interference

Journal of Low Power Electronics and Applications, 2021
The paper deals with the immunity to Electromagnetic Interference (EMI) of the current source for Ultra-Low-Voltage Integrated Circuits (ICs). Based on the properties of IC building blocks, such as the current-splitter and current correlator, a novel ...
Orazio Aiello
doaj   +1 more source

Characterisation of exposure to non-ionising electromagnetic fields in the Spanish INMA birth cohort: study protocol [PDF]

, 2016
Analysis of the association between exposure to electromagnetic fields of non-ionising radiation (EMF-NIR) and health in children and adolescents is hindered by the limited availability of data, mainly due to the difficulties on the exposure assessment ...
Guerra Pereda, David, Gallastegi, M, Gallastegi Bilbao, Mara, Ibarluzea Maurolagoitia, Jesús María, Guerra, D. (David), Guxens, Mònica, Fernández Cabrera, Mariana Fátima, Jesús Ibarluzea, Marta Fernández, Estarlich, M, Aurrekoetxea, Juan J, Aurrekoetxea Agirre, Juan José, Gallastegi, Mara, Fernández, Mariana F., Jiménez-Zabala, A. (Ana), Guxens Junyent, M. (Mònica), Laura Birks, Maties Torrent, Fernandez, Mariana F, Torrent, M. (Maties), SANTA MARINA, LORETO, Aurrekoetxea, J. J., Ballester, F, Fernandez, M.F. (Mariana), Ballester, F. (Ferran), Roosli, M, Struchen, B. (Benjamin), Mariana F. Fernández, Jiménez-Zabala, Ana, Martine Vrijheid, Loreto Santa-Marina, Gonzalez, J, Guxens Junyent, Mònica, Aurrekoetxea, Juan José, Torrent, Maties, Guerra, David, Struchen, B, Calvente, I. (Irene), Aurrekoetxea, J.J. (Juan José), Röösli, M. (Martin), Jiménez Zabala, Ana, Birks, L. (Laura), Röösli, Martin, Gallastegui, Mara, David Guerra, Santa-Marina, Loreto, Marisa Estarlich, Calvente, I, Ana Jiménez-Zabala, Fernández, M. (Marta), Fernández, Marta, Santa-Marina, L, Fernández Andrés, Marta, Torrent, M, Vrijheid, M, Ballester, Ferrán, Fernandez, MF, Aurrekoetxea, JJ, Birks, Laura Ellen, 1983-, Birks, Laura, Struchen, Benjamin, Vrijheid, Martine, González Pascual, Julián, Jiménez Zabala, Ana María, González, Julián, Vrijheid, M. (Martine), Torrent Quetglas, Maties, Guerra, D, Aurrekoetxea, Juan J., Ibarluzea, J, Mara Gallastegi, Martin Röösli, Estarlich, Marisa, Mònica Guxens, Benjamin Struchen, Estarlich, M. (Marisa), Gallastegi, M. (Mara), Ibarluzea, Jesús, González, J. (Julián), Ferrán Ballester, Irene Calvente, Ibarluzea, J.M. (Jesús), Calvente, Irene, González Estévez, Julián María, Birks, L, Roeoesli, Martin, Julián González, Santa-Marina, L. (Loreto), Birks, Laura Ellen, Jimenez-Zabala, A, Fernandez, M, Ballester Díez, Ferran, Juan J Aurrekoetxea   +92 more
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Beam-beam effects on the luminosity measurement at LEP and the number of light neutrino species

Physics Letters B, 2020
In e+e− collisions, electromagnetic effects caused by large charge density bunches modify the effective acceptance of the luminometer system of the experiments.
Georgios Voutsinas, Emmanuel Perez, Mogens Dam, Patrick Janot   +3 more
doaj   +1 more source

Microwave emission from superconducting vortices in Mo/Si superlattices

Nature Communications, 2018
Emission of electromagnetic waves is expected when superconducting vortices cross sample edges, but such a radiation has not been observed so far. Here, Dobrovolskiy et al.
O. V. Dobrovolskiy, V. M. Bevz, M. Yu. Mikhailov, O. I. Yuzephovich, V. A. Shklovskij, R. V. Vovk, M. I. Tsindlekht, R. Sachser, M. Huth   +8 more
doaj   +1 more source