Results 261 to 270 of about 1,829,206 (317)

Iron-Based Superconductors for High-Field Applications: Realization of High Engineering Critical Current Density. [PDF]

Materials (Basel)
Yang P, Huang H, Han M, Liu C, Yao C, Ma Y, Wang D.   +6 more
europepmc   +1 more source

Equation for Calculation of Critical Current Density Using the Bean's Model with Self-Consistent Magnetic Units to Prevent Unit Conversion Errors. [PDF]

Materials (Basel)
Polichetti M, Galluzzi A, Kumar R, Goyal A.   +3 more
europepmc   +1 more source

Characterization of Induced Current Density During Transcorneal Electrical Stimulation to Promote Neuroprotection in the Degenerating Retina. [PDF]

IEEE Trans Biomed Eng
Iseri E, Kosta P, Pollalis D, Lo PA, Tew BY, Louie S, Salhia B, Humayun M, Lazzi G.   +8 more
europepmc   +1 more source

Critical density effect in RF current drive

, 1984
XIA, MF (reprint author), BEIJING UNIV,DEPT PHYS,BEIJING,PEOPLES R CHINA., 康寿万, 夏蒙棼   +2 more
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Current Density Impedance Imaging

IEEE Transactions on Medical Imaging, 2008
Current density impedance imaging (CDII) is a new impedance imaging technique that can noninvasively measure the conductivity distribution inside a medium. It utilizes current density vector measurements which can be made using a magnetic resonance imager (MRI) (Scott , 1991). CDII is based on a simple mathematical expression for inverted Delta sigma /
Karshi F. Hasanov, Angela W. Ma, Adrian I. Nachman, Michael L. G. Joy   +3 more
openaire   +2 more sources

Density-Current Plumes

Science, 1966
Diurnal solar heating produces an unstable warm zone just off the bottom of the inshore regions of a salt lake. The warm water rises in plumes in which brine shrimp become entrapped through apparently negative photokinetic behavior. The plumes of concentrated shrimp resemble those composed of insects in air.
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Current density partitioning in time-dependent current density functional theory

The Journal of Chemical Physics, 2014
We adapt time-dependent current density functional theory to allow for a fragment-based solution of the many-electron problem of molecules in the presence of time-dependent electric and magnetic fields. Regarding a molecule as a set of non-interacting subsystems that individually evolve under the influence of an auxiliary external electromagnetic ...
Martín A, Mosquera, Adam, Wasserman
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Current density tensors

The Journal of Chemical Physics, 2018
It is shown that nonsymmetric second-rank current density tensors, related to the current densities induced by magnetic fields and nuclear magnetic dipole moments, are fundamental properties of a molecule. Together with magnetizability, nuclear magnetic shielding, and nuclear spin-spin coupling, they completely characterize its response to magnetic ...
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Current density and temperature of high-current arcs

Electrical Engineering, 1957
DURING INTERRUPTION of high-current arcs in circuit breakers and contactors, the region between the contacts must be converted from an intensely hot conducting medium to a relatively cool insulating medium. Although the cooling of low-current arcs has been explained by means of conduction, free convection, and radiation, extension of these mechanisms ...
T. H. Lee, W. R. Wilson, J. C. Sofianek
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The current density in quantum electrodynamics

Il Nuovo Cimento, 1952
The formulation of field theory given previously suggests an alternative expression for the current density in quantum electrodynamics. This expression is gauge-invariant and conserved and differs from the usual current density by the divergence of a tensor which vanishes in the absence of a field. Corresponding to this current is a new electromagnetic
openaire   +2 more sources