scholarly journals Theoretical Study of the Magnetic Field in the Lunar Wake

1968 ◽  
Vol 11 (8) ◽  
pp. 1713 ◽  
Author(s):  
Y. C. Whang
Keyword(s):  
Magnetic Field ◽  
Theoretical Study ◽  
Lunar Wake ◽  
The Magnetic Field

scholarly journals New Superconductivity and Theoretical Study on a New Phenomenon of Energy Source with Assistance of Initial Experiments

2018 ◽  
Author(s):  
Shinichi Ishiguri
Keyword(s):  
Magnetic Field ◽  
Energy Source ◽  
Electrostatic Field ◽  
Theoretical Study ◽  
Depletion Layer ◽  
Field Energy ◽  
Magnetic Field Energy ◽  
New Type ◽  
The Magnetic Field ◽  
A Current

We previously reported new superconductivity produced by an electrostatic field and a diffusion current in a semiconductor without refrigeration. In particular, the superconductivity was investigated theoretically and confirmed experimentally. Here, we determine that the derived superconducting quantum state can be reproduced in a capacitor. When circuits are formed with this new-type capacitor and diodes, a magnetic field is applied to the diodes’ depletion layer. The depletion layer is biased because of the conversion from the magnetic-field energy to electric-field energy, resulting in the diodes’ spontaneously emitting a current. Thus, the new-type capacitor is charged using no other energy source. This new phenomenon is described theoretically with assistance of initial experiments.

Experimental and Theoretical Study of the Field Induced Phase Separation in Electro- and Magnetorheological Suspensions

1999 ◽  
Vol 13 (14n16) ◽  
pp. 1791-1797 ◽  
Author(s):  
S. Cutillas ◽  
G. Bossis ◽  
E. Lemaire ◽  
A. Meunier ◽  
A. Cebers
Keyword(s):  
Magnetic Field ◽  
Phase Separation ◽  
Theoretical Study ◽  
Silicone Oil ◽  
The Other ◽  
Regular Pattern ◽  
Normal Stresses ◽  
Dense Phase ◽  
Magnetorheological Suspensions ◽  
The Magnetic Field

We present here the study of field induced phase separation in E.R. and M.R. fluids. Two thermodynamic models — one for the formation of chais of particles and the other for phase separation are presented and compared with experimental results obtained with two kinds of suspensions. One was made of silica particles in silicone oil and the other was made of magnetic polystyrene particles in water. In the presence of a flow the phase separation occurs with the dense phase forming a regular pattern of stripes. The dependence of the period of these stripes on the intensity of the magnetic field is well reproduced by the same kind of thermodynamic model if we add the effect of normal stresses induced by the shear flow.

scholarly journals AGN dusty plasma polarization features

2014 ◽  
Vol 10 (S313) ◽  
pp. 352-357
Author(s):  
Ericson D. Lopez ◽  
Susana Deustua
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Radiation ◽  
Faraday Rotation ◽  
Significant Contribution ◽  
Theoretical Study ◽  
Outer Region ◽  
Dust Particles ◽  
Rotation Measure ◽  
Electrons And Ions ◽  
The Magnetic Field

AbstractWe present the results of a theoretical study on the influence of dust particles on the polarization properties of the radiation that propagates along the jet in AGNs. First, a model for describing the interaction of dust particles, in addition to the electrons and ions, with electromagnetic radiation in a magneto-active plasma has been developed. From here, the contribution of dust particles to the Faraday rotation of the plane of polarization of the electric vector can be deduced. This model is evaluated for the outer region of the jet where the presence of dust particles are assumed, the magnetic field is weak and the electron density is low. Our results show that the dust particles give a significant contribution to the linear Faraday rotation measure.

scholarly journals Design Development and Analysis of a Partially Superconducting Axial Flux Motor Using YBCO Bulks

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4295
Author(s):  
Brahim Chelarem Douma ◽  
Bilal Abderezzak ◽  
Elhadj Ailam ◽  
Raluca-Andreea Felseghi ◽  
Constantin Filote ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Low Temperature ◽  
Magnetic Flux ◽  
Power Density ◽  
Theoretical Study ◽  
Design Development ◽  
Axial Flux ◽  
Flux Concentration ◽  
The Magnetic Field

In this work, authors have designed, constructed and tested a new kind of partially superconducting axial flux machine. This model is based on the magnetic flux concentration principle. The magnetic field creation part consists of the NbTi superconducting solenoid and two YBaCuO plates. A theoretical study is conducted of an extrapolated superconducting inductor for low-temperature superconducting and high-temperature superconducting solenoids. The optimization of the inductor is carried out in order to increase the torque and the power density as well. This improvement is done by changing the shape of the elements which form the superconducting inductor. Finally, a prototype is realized, and tested.

Experimental and Theoretical Study on Magnetoelastic Buckling of a Ferromagnetic Cantilevered Beam-Plate

1978 ◽  
Vol 45 (2) ◽  
pp. 355-360 ◽  
Author(s):  
K. Miya ◽  
K. Hara ◽  
K. Someya
Keyword(s):  
Magnetic Field ◽  
Theoretical Study ◽  
Critical Value ◽  
The Finite Element Method ◽  
Wide Face ◽  
Field Distortion ◽  
Cantilevered Beam ◽  
Magnetically Soft Material ◽  
Experimental Values ◽  
The Magnetic Field

When a cantilever of magnetically soft material is inserted with its wide face normal to a uniform magnetic field and the magnetic field is increased to a critical value the cantilever will buckle. The experimental magnetoelastic buckling fields and the theoretical ones differ by a factor of two. A magnetic field distortion near an edge of the specimen is here evaluated based on the finite-element method and the results are applied to the experimental results so as to explain the discrepancy between the experiment and the theory. The corrected experimental values are within 15 percent of the theoretical values. The effect of demagnetization on the buckling field is here demonstrated as well as the effect of specimen dimensions.

scholarly journals On the Hydromagnetic Stability of Fluid Rotating between Two Concentric Cylinders

1970 ◽  
Vol 30 ◽  
pp. 41-50
Author(s):  
Hosne Ara Jasmine
Keyword(s):  
Magnetic Field ◽  
Theoretical Study ◽  
Stability Conditions ◽  
Governing Equations ◽  
Magnetic Field Profile ◽  
Hydromagnetic Instability ◽  
Concentric Cylinders ◽  
Wide Range ◽  
Hydromagnetic Waves ◽  
The Magnetic Field

A theoretical study of the hydromagnetic instability due to slow hydromagnetic waves has been carried out after simplifying the complexity of governing equations. A series of stability conditions have been derived for wide range of magnetic field profiles. It has been shown that regardless of the magnetic field profile, any unstable disturbances propagate against the basic rotation. GANIT J. Bangladesh Math. Soc. (ISSN 1606-3694) 30 (2010) 41-50  DOI: http://dx.doi.org/10.3329/ganit.v30i0.8502

scholarly journals Magneto-optic signatures in the gapped Dirac semimetal with mixed linear and parabolic dispersions of ZrTe5

2021 ◽  
Author(s):  
Le You ◽  
Zi-Yue Zhang ◽  
Yi-Xiang Wang
Keyword(s):  
Magnetic Field ◽  
Density Of States ◽  
Optical Conductivity ◽  
Theoretical Study ◽  
Saddle Points ◽  
Three Dimensional ◽  
Landau Levels ◽  
Dirac Semimetal ◽  
The Magnetic Field ◽  
Good Agreement

Abstract In this paper, we give a systematic theoretical study on the Landau levels (LLs) and magneto-optical conductivity Re(σαα) in a gapped Dirac semimetal model with mixed linear and parabolic dispersions under a magnetic field, which was recently proposed by Jiang et al. [Phys. Rev. Lett. 125, 046403 (2020)] to explain the experimental magnetoinfrared spectroscopy in the three-dimensional ZrTe5 crystal. We find that the strong magnetic field can drive the LLs become noninverted and thus the strong topological insulator phase in ZrTe5 turns to be a trivial insulator. In the different magnetic field regions, the density of states and Re(σαα) can exhibit distinct signatures. Moreover, when the magnetic field is weak, a qualitative relation in Re(σzz) between the peaks at the saddle points is revealed as Re(σzz ζn) >Re(σzz Γ) , which is in good agreement with the experiment.

ELECTRONIC CONDUCTANCE OF A T-SHAPED WAVEGUIDE IN LOCAL MAGNETIC FIELD

1996 ◽  
Vol 10 (26) ◽  
pp. 3583-3594
Author(s):  
B.Y. GU ◽  
J.R. SHI
Keyword(s):  
Magnetic Field ◽  
Fermi Energy ◽  
Theoretical Study ◽  
Incident Electron ◽  
Local Magnetic Field ◽  
Smooth Curves ◽  
High Energies ◽  
Electron Waveguide ◽  
Electronic Conductance ◽  
The Magnetic Field

A theoretical study of the electronic conductance of an electron waveguide with a T-stub in local magnetic field is presented. The conductance as a function of Fermi energy and magnetoconductance of a T-stub with various dimensions are calculated. It is found that at low incident electron energies the conductance is hardly changed with the magnetic field. At high energies the magnetic field shifts the resonant peaks and enhances the transmission on the average. Oscillatory structures of the magnetoconductance present for a T-stub with larger area while smooth curves exist for a stub with smaller area. Intuitive interpretations are given in terms of magnetic induced quasibound states and antiresonant reflections. The possibility of a magnetically controlled mesoscopic device is discussed.

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