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We present a detailed discussion of an extensive set of ground and spacecraft data that are used to elucidate the initiation, evolution, and termination of a magnetic impulse event (MIE) on June 6,

Magnetic field data obtained by fluxgate and search coil magnetometers installed at four Automatic Geophysical Observatories (AGO P1, P2, P3, and P4) and at South Pole and McMurdo in Antarctica and

Magnetic field data acquired at high latitude, near-conjugate stations (Iqaluit, Northwest Territories, Canada and South Pole Station, Antarctica) are studied in order to examine in more detail the

Theoretical models of the possible ionospheric signatures of sporadic dayside reconnection predict Hall current loops in the ionosphere which would produce abrupt, few minute changes in the vertica

We present five magnetic impulse events observed at South Pole and in the magnetically conjugate area at Iqaluit.

We solve the problem of a magnetic impurity in a d sub x sup 2 - sub y sup 2 -wave superconductor by a variational method.

Since the introduction of the dial-type telephone switching systems, switching devices such as relays and electromagnets have become the most essential and widely used of all the components in the

Latching relays or lock-up relays, as tliey are sometimes called, are becoming important and very useful as switching elements.

* Transpacific Communications, Inc. (a subsidiary of AT&T Long Lines); Cable and Wireless, Ltd.; French Postes Telegraphe et Telephonie; British Post Office; Teleglobe Canada.

HE modern alternating current bridge, with its high precision and sensitive balance, has almost completely superseded the ballistic galvanometer for determining the magnetic properties of core mate