Results 181 to 190 of about 134,311 (195)
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Electromagnetic Fields and Bones
JAMA: The Journal of the American Medical Association, 1982The use of pulsing electromagnetic fields (PEMFs) and direct-current stimulation for the treatment of delayed and nonunion of fractures is proving to be a major advance in traumatic orthopedic surgery. In this issue ofThe Journal(p 623), Bassett and his co-workers summarize their experience in the use of PEMFs for nonunited fractures and failed ...
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1986
To describe how the capacitance and inductance per unit length of a transmission line determine the speed of an electrical pulse. To obtain an expression for pulse speed and characteristic impendance in a transmission line. To show that pulse speed is independent of geometry and with no dielectric or magnetic materials present is the same as ...
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To describe how the capacitance and inductance per unit length of a transmission line determine the speed of an electrical pulse. To obtain an expression for pulse speed and characteristic impendance in a transmission line. To show that pulse speed is independent of geometry and with no dielectric or magnetic materials present is the same as ...
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Coupling to Electromagnetic Fields
2011Electromagnetism is the most important interaction for the study of atoms, molecules and materials. It determines most of the potentials or perturbation operators V which are studied in practical applications of quantum mechanics, and it also serves as a basic example for the implementation of other, more complicated interactions in quantum mechanics ...
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Motion in an Electromagnetic Field
1992We now consider a particle of mass m and charge e in an electromagnetic field. The representation of the field by the vector potential A and the scalar potential Φ $$ E = - \frac{1}{c}\,\frac{{\partial A}}{{\partial t}} - \nabla \Phi \;;\;B = \nabla \times A $$ (7.1) and the classical Hamiltonian $$ H = \frac{1}{{2m}}{\left( {p - \frac{e ...
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Boosting the Electromagnetic Field
2002This paper deals with the Lorentz transformations of the electromagnetic field. The goal is to achieve an approach that appears elementary enough as if it needed “ ; only bare hands.” ; This idea springs from the fact that these transformation can be cast in an exceedingly appealing form― ; when electric and magnetic fields ...
Butković, Davor +2 more
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Measuring Electromagnetic Fields
Epidemiology, 2000Tim E. Aldrich, Han Kim, Kent C. Jaffa
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