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・ Induced gas flotation
・ Induced gravity
・ Induced high electron mobility transistor
・ Induced homomorphism
・ Induced homomorphism (algebraic topology)
・ Induced homomorphism (fundamental group)
・ Induced homomorphism (quotient group)
・ Induced innovation
・ Induced menopause
・ Induced metric
・ Induced movement
・ Induced ovulation (animals)
・ Induced path
・ Induced pluripotent stem cell
・ Induced pluripotent stem-cell therapy
Induced polarization
・ Induced radioactivity
・ Induced representation
・ Induced seismicity
・ Induced seismicity in Basel
・ Induced stem cells
・ Induced subgraph isomorphism problem
・ Induced thymic epithelial cells
・ Induced topology
・ Induced-charge electrokinetics
・ Induced-self antigen
・ Inducement (disambiguation)
・ Inducement prize contest
・ Inducement rule
・ Inducer


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Induced polarization : ウィキペディア英語版
Induced polarization
Induced polarization (IP) is a geophysical imaging technique used to identify subsurface materials, such as ore. The method is similar to electrical resistivity tomography, in that an electric current is induced into the subsurface through two electrodes, and voltage is monitored through two other electrodes.
Time domain IP methods measure the voltage decay or chargeability over a specified time interval after the induced voltage is removed. The integrated voltage is used as the measurement.
Frequency domain IP methods (see Spectral Induced Polarisation) use alternating currents (AC) to induce electric charges in the subsurface, and the apparent resistivity is measured at different AC frequencies.
==References==

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