相关实验视频

Updated: May 26, 2026

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

2011年东北奥基地震:流离失所达到沟轴

Toshiya Fujiwara1, Shuichi Kodaira, Tetsuo No

  • 1Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Yokosuka 237-0061, Japan. toshi@jamstec.go.jp

Science (New York, N.Y.)
|December 7, 2011
PubMed
概括

2011年东北奥基地震造成了海底的重大移位,延伸到日本沟轴. 多束浴度学揭示了水平和垂直运动对海洋底部产生影响.

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Displacement Current01:19

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A displacement current is analogous to a real current in Ampère's law, participating in Ampère's law the same way as the usual conduction current. However, it is produced by a changing electric field. Displacement current is defined in terms of a time-varying electric field, and also has an associated displacement current density. By adding a term accounting for displacement current, Maxwell modified the existing Ampère's law, which is now called generalized Ampère's law.
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Position and Displacement

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To describe the motion of an object, one should first be able to describe its position (where it is at any particular time). More precisely, the position needs to be specified relative to a convenient frame of reference. A frame of reference is an arbitrary set of axes from which the position and motion of an object are described. Earth is often used as a frame of reference to describe the position of an object in relation to stationary objects on Earth.
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