Results 11 to 20 of about 25,004 (243)

A lightweight magnetically shielded room with active shielding [PDF]

Scientific Reports, 2022
AbstractMagnetically shielded rooms (MSRs) use multiple layers of materials such as MuMetal to screen external magnetic fields that would otherwise interfere with high precision magnetic field measurements such as magnetoencephalography (MEG). Optically pumped magnetometers (OPMs) have enabled the development of wearable MEG systems which have the ...
Holmes, N, Rea, M, Chalmers, J, Leggett, J, Edwards, LJ, Nell, P, Pink, S, Patel, P, Wood, J, Murby, N, Woolger, D, Dawson, E, Mariani, C, Tierney, TM, Mellor, S, O’Neill, GC, Boto, E, Hill, RM, Shah, V, Osborne, J, Pardington, R, Fierlinger, P, Barnes, GR, Glover, P, Brookes, MJ, Bowtell, R   +25 more
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Analytical Shielding Metrics-Based Shielding Configuration Guideline for ELF Magnetic Field Mitigation

IEEE Access, 2022
This paper presents a simple guideline for configuration of the shielding materials that mitigates the extremely low-frequency (ELF) magnetic fields generated by power facilities located close to our daily life activities.
Kibeom Kim, Minsang Kim, Sangwook Park
doaj   +1 more source

Spatial Contributions to Nuclear Magnetic Shieldings [PDF]

The Journal of Physical Chemistry A, 2021
We develop a methodology for calculating, analyzing, and visualizing nuclear magnetic shielding densities which are calculated from the current density via the Biot–Savart relation. Atomic contributions to nuclear magnetic shielding constants can be estimated within our framework with a Becke partitioning scheme.
Rahul Kumar Jinger, Heike Fliegl, Radovan Bast, Maria Dimitrova, Susi Lehtola, Dage Sundholm   +5 more
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Method of adjustment of three circuit system of active shielding of magnetic field in multi-storey buildings from overhead power lines with wires triangular arrangement

Electrical engineering & Electromechanics, 2022
Aim. For the first time the method of adjustment of three circuit system of the active shielding of the magnetic field based on experimentally determined space-time characteristics to increase the shielding factor in a multi-storey building located near ...
B. I. Kuznetsov, T. B. Nikitina, I. V. Bovdui, O. V. Voloshko, V. V. Kolomiets, B. B. Kobylianskiy   +5 more
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Optimizing magnetically shielded solenoids

Review of Scientific Instruments, 2020
An important consideration when designing a magnetostatic cavity for various applications is to maximize the ratio of the volume of field homogeneity to the overall size of the cavity. We report a design of a magnetically shielded solenoid that significantly improves the transverse field gradient averaged over a volume of 1000 cm3 by placing ...
W. C. Chen, Md. T. Hassan, R. Erwin, S. M. Watson, T. R. Gentile, G. L. Jones   +5 more
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THE EFFECTIVENESS OF ACTIVE SHIELDING OF MAGNETIC FIELD WITH CIRCULAR SPACE-TIME CHARACTERISTIC AND WITH DIFFERENT SHIELDING COILS SPATIAL POSITIONS

Electrical engineering & Electromechanics, 2020
Aim. The synthesis, computer modeling and field experimental research of two degree of freedom robust two circuit system of active shielding of magnetic field with circular space-time characteristic, generated by overhead power lines with «triangle» type
B. I. Kuznetsov, T. B. Nikitina, I. V. Bovdui   +2 more
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Effect of different aspect ratios of rectangular hole on magnetic shielding property for cylindrical shield

AIP Advances, 2023
In this paper, the influence of rectangular holes with different aspect ratios in a cylinder on shielding properties is investigated using the finite element method.
Jing Zhu, Lei Wang, Siyuan Hao, Xinzhe Shi, Shuai Wang, Lianqing Zhu   +5 more
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Spatial Contributions to ¹H NMR Chemical Shifts of Free-Base Porphyrinoids

Chemistry, 2021
A recently developed methodology for calculating, analyzing, and visualizing nuclear magnetic shielding densities is used for studying spatial contributions including ring-current contributions to 1H nuclear magnetic resonance (NMR) chemical shifts of ...
Heike Fliegl, Maria Dimitrova, Raphael J. F. Berger, Dage Sundholm   +3 more
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HIGH VOLTAGE POWER LINES MAGNETIC FIELD SYSTEM OF ACTIVE SHIELDING WITH COMPENSATION COIL DIFFERENT SPATIAL ARRANGEMENT

Electrical engineering & Electromechanics, 2019
Aim. The synthesis of single-circuit system of active shielding of magnetic field, generated by group of high voltage power lines, with different spatial arrangement of shielding coil. Methodology.
B. I. Kuznetsov, T. B. Nikitina, I. V. Bovdui   +2 more
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Reduction of magnetic field level in residential old buildings from overhead power lines by means of active screening

Electrical engineering & Electromechanics, 2021
Aim. Reduction of the magnetic field induction to the level of modern sanitary standards by means of active screening in residential old buildings which are located near existing typical overhead power lines are considered.
B. I. Kuznetsov, T. B. Nikitina, I. V. Bovdui, V. V. Kolomiets, B. B. Kobylianskiy   +4 more
doaj   +1 more source