scholarly journals A Non-Linear Magnetic Field Calibration Method for Filter-Based Magnetographs by Multilayer Perceptron

Solar Physics ◽  
2020 ◽  
Vol 295 (1) ◽  
Author(s):  
Jingjing Guo ◽  
Xianyong Bai ◽  
Yuanyong Deng ◽  
Hui Liu ◽  
Jiaben Lin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Multilayer Perceptron ◽  
Calibration Method ◽  
Field Calibration ◽  
Non Linear

scholarly journals A nonlinear solar magnetic field calibration method for the filter-based magnetograph by the residual network

2020 ◽  
Author(s):  
Jingjing Guo ◽  
Xianyong Bai ◽  
Hui Liu ◽  
Xu Yang ◽  
Yuanyong Deng ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Magnetic Field ◽  
Calibration Method ◽  
Residual Network ◽  
Field Calibration

Gyro-compensated real-timeEKF magnetic field calibration method

2019 ◽  
Vol 27 (12) ◽  
pp. 2650-2658
Author(s):  
蔡浩原 CAI Hao-yuan ◽  
李文宽 LI Wen-kuan ◽  
赵晟霖 ZHAO Sheng-lin ◽  
刘春秀 LIU Chun-xiu
Keyword(s):  
Magnetic Field ◽  
Calibration Method ◽  
Field Calibration

scholarly journals Real-Time Magnetic Field Calibration Method Based on Extended Kalman Filter

2020 ◽  
Vol 1627 ◽  
pp. 012028
Author(s):  
Li Wenkuan ◽  
Cai Haoyuan ◽  
Zhao Shenglin ◽  
Liu Chunxiu
Keyword(s):  
Magnetic Field ◽  
Kalman Filter ◽  
Real Time ◽  
Extended Kalman Filter ◽  
Calibration Method ◽  
Field Calibration

Non-linear dependence of the dielectric properties of chick embryo myoblast membranes exposed to a sinusoidal 50 Hz magnetic field

1991 ◽  
Vol 60 (6) ◽  
pp. 877-890 ◽  
Author(s):  
Martino Grandolfo ◽  
Maria Santini ◽  
Paolo Vecchia ◽  
Adalberto Bonincontro ◽  
Cesare Cametti ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Dielectric Properties ◽  
Chick Embryo ◽  
Linear Dependence ◽  
Non Linear

A shallow-liquid theory in magnetohydrodynamics

1960 ◽  
Vol 7 (1) ◽  
pp. 81-107 ◽  
Author(s):  
L. E. Fraenkel
Keyword(s):  
Magnetic Field ◽  
Mechanical Energy ◽  
Fluid Velocity ◽  
Linear Equations ◽  
Qualitative Difference ◽  
Meridional Plane ◽  
Plane Flow ◽  
Non Linear ◽  
Moderate Magnetic Field ◽  
Approximate Equations

The non-linear and linear ‘shallow-water’ theories, which describe long gravity waves on the free surface of an inviscid liquid, are extended to the case of an electrically conducting liquid on a horizontal bottom, in the presence of a vertical magnetic field. The dish holding the liquid, and the medium outside it, are assumed to be non-conducting. The approximate equations are based on a small ratio of depth to wavelength, on the properties of mercury, and on a moderate magnetic field strength. These equations have a ‘magneto-hydraulic’ character, for in the shallow liquid layer the horizontal fluid velocity and current density are independent of the vertical co-ordinate.Some explicit solutions of the linear equations are obtained for plane flows and for axi-symmetric flows in which the velocity vector lies in a vertical, meridional plane. The amplitudes of waves in a dish, and the amplitudes behind wave fronts progressing into undisturbed liquid, are found to be exponentially damped, the mechanical energy associated with a disturbance being dissipated by Joule heating.The approximate non-linear equations for plane flow are studied by means of characteristic variables, and it appears that, because of the magnetic damping effect, there is less qualitative difference between solutions of the non-linear and linear approximate equations at large times than is the case when the magnetic field is absent. In particular, the characteristic curves depart only a finite distance from their ‘undisturbed positions’.

MHD STAGNATION POINT FLOW OF HYPERBOLIC TANGENT FLUID WITH VISCOUS DISSIPATION AND CHEMICAL REACTION

2021 ◽  
Vol 21 (2) ◽  
pp. 569-588
Author(s):  
KINZA ARSHAD ◽  
MUHAMMAD ASHRAF
Keyword(s):  
Magnetic Field ◽  
Differential Equations ◽  
Ordinary Differential Equations ◽  
Stagnation Point ◽  
Viscous Dissipation ◽  
Chemical Reaction ◽  
Normal Velocity ◽  
Hyperbolic Tangent ◽  
Linear Ordinary Differential Equations ◽  
Non Linear

In the present work, two dimensional flow of a hyperbolic tangent fluid with chemical reaction and viscous dissipation near a stagnation point is discussed numerically. The analysis is performed in the presence of magnetic field. The governing partial differential equations are converted into non-linear ordinary differential equations by using appropriate transformation. The resulting higher order non-linear ordinary differential equations are discretized by finite difference method and then solved by SOR (Successive over Relaxation parameter) method. The impact of the relevant parameters is scrutinized by plotting graphs and discussed in details. The main conclusion is that the large value of magnetic field parameter and wiessenberg numbers decrease the streamwise and normal velocity while increase the temperature distribution. Also higher value of the Eckert number Ec results in increases in temperature profile.

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