Results 241 to 250 of about 3,103,616 (297)
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, 2020
A well-designed multilayered waterborne polyurethane (WPU) shielding composites with absorption-dominated shielding feature are realized by constructing a controllable electro-magnetic gradient.
An Sheng +7 more
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A well-designed multilayered waterborne polyurethane (WPU) shielding composites with absorption-dominated shielding feature are realized by constructing a controllable electro-magnetic gradient.
An Sheng +7 more
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ACS Applied Materials and Interfaces, 2020
Constructing multifunctional characteristics becomes a development trend toward advanced electromagnetic interference shielding materials in harsh environments.
Yun Zheng +7 more
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Constructing multifunctional characteristics becomes a development trend toward advanced electromagnetic interference shielding materials in harsh environments.
Yun Zheng +7 more
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Cellulose-based Ni-decorated graphene magnetic film for electromagnetic interference shielding.
Journal of Colloid and Interface Science, 2020Flexible and ultrathin electromagnetic interference (EMI) shielding films are urgently required to manage increasingly serious radiation pollution. In this work, the EMI shielding performance and flexibility of conductive polymer films were addressed by ...
Gaojie Han +8 more
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The effect of shaking on magnetic shields
IEEE Transactions on Magnetics, 1980The increase of the shielding factor due to shaking was measured in a scale model for a magnetically shielded room. The increase was found to be 7 dB for a single-layer square cylinder biased by the Earth's magnetic field. The shielding factor of a large-volume three-layer Mumetal® room was estimated to increase by a factor of 30, thus confirming the ...
Kelhä, Väinö +2 more
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Frequency Dependence of Shielding Effectiveness of Multilayered Magnetic Shields
Sixteenth International Wrocław Symposium and Exhibition, Electromagnetic Compatibility 2002, 2002An analysis of magnetic shielding effectiveness of multilayered structures versus frequency is presented. It is shown that the quasistatic field approximation is accurate until several MHz depending on the source-to-observation-point distance, characteristic dimensions of the source, and physical and geometrical properties of layers.
MASSARINI, Antonio +2 more
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IEEE Sensors Journal, 2018
To reduce the effects of surface characteristics of materials and background noise of a magnetic excitation field, a new sensor with magnetic shielding was developed for eddy-current (EC) testing.
Zenghua Liu +5 more
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To reduce the effects of surface characteristics of materials and background noise of a magnetic excitation field, a new sensor with magnetic shielding was developed for eddy-current (EC) testing.
Zenghua Liu +5 more
semanticscholar +1 more source
IEEE Transactions on Applied Superconductivity, 2014
Magnetic properties of Cryophy were measured at room and cryogenic temperatures using ring samples. Sample-to-sample variation in permeability was evaluated in addition to measurement error. Permeability dependence on the maximum annealing temperature was examined using ring samples annealed at 1100 °C and 1170 °C.
M. Masuzawa, K. Tsuchiya, A. Terashima
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Magnetic properties of Cryophy were measured at room and cryogenic temperatures using ring samples. Sample-to-sample variation in permeability was evaluated in addition to measurement error. Permeability dependence on the maximum annealing temperature was examined using ring samples annealed at 1100 °C and 1170 °C.
M. Masuzawa, K. Tsuchiya, A. Terashima
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Investigation of 2-layer Shield for Magnetic Shielding Considering Magnetic Hysteresis
The 2006 4th Asia-Pacific Conference on Environmental Electromagnetics, 2006This paper presents the study of 2-layer shielding against power frequency magnetic field in order to increase the shielding effectiveness of the shield. The work has been investigated by finite element method (FEM) considering the hysteresis effect of magnetic materials.
P. Pruksanubal, S. Phoomvutthisarn
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Magnetic shielding of nuclei in molecules
Physica, 1950Abstract An expression is developed for the magnetic field at a nucleus of a poly-atomic molecule with zero resultant orbital and spin angular momenta in an external magnetic field. The field at the nucleus is not the same as the externally applied field because of the field arising from the motion of the electrons in the molecule. The expression for
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Magnetic Shielding by Superconducting Films
Journal of Applied Physics, 1962The magnetic field distribution and supercurrent density are calculated exactly by means of the Maxwell-London equations for the case of an ideal superconducting spherical shell immersed in a steady uniform magnetic field. It is shown that the magnetic field is strongly attenuated by the spherical shell even if the shell thickness is as small as 1000 A.
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