Results 221 to 230 of about 114,540 (265)
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Gyrotropic thermoelement in uniform and non-uniform magnetic fields
Journal of Thermoelectricity, 2020Using computer simulation, the temperature distributions in the working medium of gyrotropic thermoelements in uniform and non-uniform magnetic fields have been determined. Temperature dependences of the efficiency of gyrotropic thermoelements in uniform and non-uniform magnetic fields are determined.
N.A. Godovanets +3 more
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Hanging Around in Non-Uniform Fields
The American Mathematical Monthly, 2015AbstractWe define a family of curves, the n-catenaries, parameterized by the nonzero reals. They include the classical catenaries (n = 1), parabolas (n = 1/2), cycloids (n = −1/2), and semicircles ...
Fred Kuczmarski, James Kuczmarski
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Mathematical Proceedings of the Cambridge Philosophical Society, 1941
We consider the motion of a particle in a plane field of force. We take rectangular cartesian coordinates (x, y) in the plane, and denote by V(x, y) the potential of the field, and by h the (constant) energy of the motion. If A and B, whose coordinates are (x0, y0) and (x1, y1), are any two points on an orbit, the orbit is characterized by the property
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We consider the motion of a particle in a plane field of force. We take rectangular cartesian coordinates (x, y) in the plane, and denote by V(x, y) the potential of the field, and by h the (constant) energy of the motion. If A and B, whose coordinates are (x0, y0) and (x1, y1), are any two points on an orbit, the orbit is characterized by the property
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Field of a particle in uniform motion and uniform acceleration
Annals of Physics, 1962Abstract The line element in the neighborhood of a charged particle, according to general relativity theory, is put into the isotropic form. By means of a Lorentz transformation the gravitational and electromagnetic fields of a particle in uniform motion are obtained.
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Uniform field flicker: Masking and facilitation
Vision Research, 1989The influence of uniform field flicker (UFF) on the contrast threshold for stationary sinusoidal gratings was measured as a function of flicker depth. Changing from no flicker to a flicker depth of 10% produces reliable differences in threshold. Further increases in flicker depth to 60% had little additional influence.
D R, Badcock, D, Smith
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Static uniform magnetic fields and amoebae
Bioelectromagnetics, 1997Three species of potentially pathogenic amoebae were exposed to 71 and 106.5 mT from constant homogeneous magnetic fields and examined for inhibition of population growth. The number of amoebae for three species was significantly less than controls after a 72 h exposure to the magnetic fields when the temperature was 20 C or above. Axenic cultures, i.e.
S G, Berk +3 more
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Lamellar inhomogeneities in a uniform stress field
Journal of the Mechanics and Physics of Solids, 1996zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hurtado, J. A., Dundurs, J., Mura, T.
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2016 IEEE Global Electromagnetic Compatibility Conference (GEMCCON), 2016
This paper describes a new method for predicting the magnetic field strength in near-field for complex exposure situations. The measurement of the exposure level for compliance tests at sites close to a current source in the low frequency range is restricted by an abrupt gradient distribution in the field strength, non-uniform characteristics, and ...
Byung Chan Kim +5 more
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This paper describes a new method for predicting the magnetic field strength in near-field for complex exposure situations. The measurement of the exposure level for compliance tests at sites close to a current source in the low frequency range is restricted by an abrupt gradient distribution in the field strength, non-uniform characteristics, and ...
Byung Chan Kim +5 more
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Bloch electron in a uniform electric field
Physical Review B, 1992A formula for calculating the interband matrix elements of X for a Bloch electron in a uniform electric field is derived, from which it is found that the interband matrix elements of X are only determined by the interband matrix elements of the derivative of the periodic potential. Using this formula with a Kronig-Penney potential leads to nonvanishing
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Field uniformity in radiated field immunity tests
2015 IEEE International Symposium on Electromagnetic Compatibility (EMC), 2015The calibration requirements of radiated immunity tests performed in semi-anechoic chambers and fully anechoic rooms are analyzed by means of electromagnetic computational tools to verify the severity of the allowed tolerance requirements of their anechoic environments.
Audone, Bruno +2 more
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