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Kamide Y. Kihn E.A. Ridley A.J. Cliver E.W. Kadowaki Y. 《Space Science Reviews》2003,107(1-2):307-316
We report the recent progress in our joint program of real-time mapping of ionospheric electric fields and currents and field-aligned
currents through the Geospace Environment Data Analysis System (GEDAS) at the Solar-Terrestrial Environment Laboratory and
similar computer systems in the world. Data from individual ground magnetometers as well as from the solar wind are collected
by these systems and are used as input for the KRM and AMIE magnetogram-inversion algorithms, which calculate the two-dimensional
distribution of the ionospheric parameters. One of the goals of this program is to specify the solar-terrestrial environment
in terms of ionospheric processes, providing the scientific community with more than what geomagnetic activity indices and
statistical models provide.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
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Rotation of a pair of wings was driven by the vertical harmonic motion of a pin inserted into the center hole of the wings.To elucidate the mechanism by which the rotational motion of the wings was excited,the relationship between the wings and the pin was examined by tracking their motions using both displacement measurements and high-speed photography.The motion modes occurred in this study were categorized into five types:slipping,rolling,jumping(without eccentricity),jumping(with eccentricity),and non-rotation.In the case that the hole of the wings was located at a distance from the center of the wings,referred to as″with eccentricity,″the slipping,jumping(with eccentricity),and non-rotation modes resulted.The experimental results showed that the mechanism of the jumping(with eccentricity)was different from that of the other modes(slipping,rolling,jumping(without eccentricity)),which are well known to be driven by the periodical reaction of the wings against the vertical vibration of the pin.It was found that the jumping(with eccentricity)was driven by the non-periodical force with the collision between the wing hole and the pin. 相似文献
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