Results 271 to 280 of about 7,856,512 (343)

Hierarchical Engineering of Double‐Shelled Nanotubes toward Hetero‐Interfaces Induced Polarization and Microscale Magnetic Interaction

Advanced Functional Materials, 2022
Hierarchical engineering of suitable dielectric‐magnetic multicomponents shows good performance for microwave absorbers, but still face bottlenecks. Herein, hierarchical double‐shelled nanotubes (DSNTs), in which the inner magnetic tubular subunits are ...
Panbo Liu, Yi Wang, Guozheng Zhang, Ying Huang, Ruixuan Zhang, Xianhu Liu, Xuefeng Zhang, R. Che   +7 more
semanticscholar   +1 more source

Scattering loss from magnetic mirror systems-I

Journal of Nuclear Energy. Part C, Plasma Physics, Accelerators, Thermonuclear Research, 1962
In Part I of this paper (BENDANIEL and ALLIS, 1962) the `reference distribution' method for treatment of the problem of scattering loss from a magnetic mirror system was developed. Also the `square well' approximation was treated in detail. Results are now presented of a study in which the `square well' treatment was generalized by the reference ...
Ben Daniel, D. J., Allis, W. P.
openaire   +3 more sources

Core loss in buried magnet permanent magnet synchronous motors

IEEE Transactions on Energy Conversion, 1989
The steady-state core-loss characteristics of buried-magnet synchronous motors operating from a sinusoidal constant frequency voltage supply are investigated. Measured and calculated core loss, with constant shaft load, is shown to increase with decreasing terminal voltage due to an increase in armature reaction-induced stator flux-density time ...
Rich Schiferl, T. A. Lipo
openaire   +1 more source

Synergistic Dielectric–Magnetic Enhancement via Phase‐Evolution Engineering and Dynamic Magnetic Resonance

Advanced Functional Materials, 2023
Dielectric polarization and magnetic resonance associated with intrinsic constituent and extrinsic structure are two kinds of fundamental attenuation mechanisms for microwave absorbers, but remain extremely challenging in revealing the composition ...
Panbo Liu, Guozheng Zhang, Hanxiao Xu, Shuaici Cheng, Ying Huang, B. Ouyang, Yuetong Qian, Ruixuan Zhang, R. Che   +8 more
semanticscholar   +1 more source

Reduction of hysteresis loss in soft magnetic composites under transverse magnetic field

, 2020
A method to reduction hysteresis loss of soft magnetic composites (SMCs) is reported in this Letter. It is found that the power loss of SMCs reduces about 1/3 at the expanse of less than 10% decreases of permeability when a transverse magnetic field is ...
S. Feng, J. Ni, F. Hu, X. Kan, Q. Lv, Y. J. Yang, X. Liu   +6 more
semanticscholar   +1 more source

Nonlinear Modeling of Magnetization Loss in Permanent Magnets

IEEE Transactions on Magnetics, 2012
Permanent magnets are commonly used in electromechanical energy conversion devices, especially in permanent magnet synchronous machines (PMSM). When designing such devices, it is necessary to take account for the operating conditions of the permanent magnets.
Radu Fratila, Abdelkader Benabou, Abdelmounaim Tounzi, Jean Claude Mipo   +3 more
openaire   +1 more source

Determination of magnetic losses in planar magnetic elements

2008 18th International Conference on Electrical Machines, 2008
This paper aims at presenting several parameters for the determination of magnetic losses in planar magnetic devices. All the figures, equations, and graphics presented were obtained by analytical studies, simulations using finite-element analysis, and mainly through the measurements taken on a magnetic device built for this purpose.
C. L. Ebert, W. P. Carpes, J. C. S. Fagundes   +2 more
openaire   +1 more source

Magnetic losses in soft magnetic materials

2015
Soft magnetic materials are important in modern networks used for the distribution of electrical energy. They are part of transformers and generators as core material for example. The efficiency of those transformers and generators is among other things limited by the fact that energy has to be used to change the magnetization of the material.
openaire   +1 more source

Losses in magnetic insulators

1983 EIC 6th Electrical/Electronical Insulation Conference, 1983
Substitution of magnetic ions in some semiconducting alloys produces materials with interesting properties having high potential for device applications. On the other hand, substitution of specific ions in magnetic materials produces p- or n-type semiconducting properties.
openaire   +1 more source

AC Losses and Magnet Research

1994
The main issues in the research on ac losses in practical superconductors and the developments of the last decade are reviewed. Moreover the impact of the knowledge on the development of superconducting magnet systems as for tokamaks and particle accelerators is discussed.
openaire   +2 more sources