Comparison of Birkeland current observations during two magnetic
... time but for which the sign of the IMF By was opposite. The IMF during these intervals was stable in direction to within ±25◦ of the average direction for at least ten hours. The simulations were driven by solar wind (McComas et al., 1998) and IMF (Smith et al., 1998) data from the Advanced Composit ...
... time but for which the sign of the IMF By was opposite. The IMF during these intervals was stable in direction to within ±25◦ of the average direction for at least ten hours. The simulations were driven by solar wind (McComas et al., 1998) and IMF (Smith et al., 1998) data from the Advanced Composit ...
Spin Exchange Optical Pumping of Neon and its Applications
... Absolute Rb polarization as function of propagation distance through cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 ...
... Absolute Rb polarization as function of propagation distance through cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 ...
Giant pulsations as modes of a transverse Alfv´enic resonator
... The bump-on-tail instability is a natural candidate if Pgs represent the second parallel harmonic (Chisham and Orr, 1991; Chisham et al., 1992). Glassmeier et al. (1999) suggested that the bump-on-tail instability may also be a source of the fundamental harmonic Pg event, but they assumed the wave t ...
... The bump-on-tail instability is a natural candidate if Pgs represent the second parallel harmonic (Chisham and Orr, 1991; Chisham et al., 1992). Glassmeier et al. (1999) suggested that the bump-on-tail instability may also be a source of the fundamental harmonic Pg event, but they assumed the wave t ...
spin states and spin-orbit coupling in
... exposed to many exciting experiments and for having met numerous wonderful people. First and foremost, I would like to thank my advisor Dan Ralph for making this possible. He taught me solid state physics as well as many tricks to survive in the lab, and always helped out if things went wrong. Thank ...
... exposed to many exciting experiments and for having met numerous wonderful people. First and foremost, I would like to thank my advisor Dan Ralph for making this possible. He taught me solid state physics as well as many tricks to survive in the lab, and always helped out if things went wrong. Thank ...
JMPEE46 4 215Horikoshi
... As a heating source, microwave radiation has become one of the most attractive heating methods in chemical syntheses, contrary to conventional heating methods that provide heat externally through conduction and convection at the interface between the reactor walls and the heat bath (e.g. an oil bath ...
... As a heating source, microwave radiation has become one of the most attractive heating methods in chemical syntheses, contrary to conventional heating methods that provide heat externally through conduction and convection at the interface between the reactor walls and the heat bath (e.g. an oil bath ...
Investigation of the unusual magnetic properties of hemo
... spectrometer (TASP) and polarised small angle neutron scattering (SANSPOL) on a piece of hemo-ilmenite rock from Norway. The results from the TASP experiment show that the canted-antiferromagnetic hematite spins are rotating away from an applied field and is not saturated in fields up to 2 T. This i ...
... spectrometer (TASP) and polarised small angle neutron scattering (SANSPOL) on a piece of hemo-ilmenite rock from Norway. The results from the TASP experiment show that the canted-antiferromagnetic hematite spins are rotating away from an applied field and is not saturated in fields up to 2 T. This i ...
Homework Section 1
... 32) In spherical coordinates, show that the electric field E of a point charge is conservative. Determine and write the electric potential in rectangular (cartesian) and cylindrical coordinates. Find E using both cartesian and cylindrical coordinates and show that the results are the same as ...
... 32) In spherical coordinates, show that the electric field E of a point charge is conservative. Determine and write the electric potential in rectangular (cartesian) and cylindrical coordinates. Find E using both cartesian and cylindrical coordinates and show that the results are the same as ...
Electromagnet
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel.