From this model section, a formula is obtained for calculating the amplitude of relative apparent annual variation of resistivity at a station characterized by two resistivity layers.
Test method for measuring resistivity of monocrystal silicon and germanium with a collinear four-probe array
The study shows that the resistivity of alloyed wire raised and thermal potential reduced with the increase of deformation.
The ground resistivity data measured at Gaoyou station, Jiangsu province are processed and analysized by using the differences energy and normalized monthly variation rate methods.
The resistivity from the middle-lower crust to the upper mantle of lithosphere, near the gravity gradient zone in the Wuling mountain, is very high. It is related to the forming of the gradient zone.
It could be resistivity.
This section details how to make surface and volume resistivity measurements with these test fixtures, as well as the Alternating Polarity and Alternating Voltage techniques for measuring resistivity.
Low resistance measurement Applications: Contact resistance, superconductor resistance measurements, and resistivity measurements of conductive materials.
The theoretic formula of apparent resistivity in horizontal, uniform bedded medium can be transformed into a convolution filtering expression.
The Titanium silicide film has its potential advantage in forming a gate electrode and interconnection for VLSI because of its low resistivity and some other good characteristics.
As far as cased-hole formation resistivity logging, the key problems needed to be solved are detection of ultra-low frequency and extremely weak signals, as well as reduction of strong interferences.
Among found low-resistivity pays in Dongying Sag, the low-resistivity pays of high formation water salinity took relatively major proportion.
High impedance voltage switching may be necessary in applications such as monitoring electrochemical cells and measuring semiconductor resistivity.
In the present paper, electrical resistivity tomography was used to detect the west branch of Xiaojiang fault in lake sedimentary Tonghai basin.
focused resistivity curve
Leading role: the repair scar injured area, lives the myo - tender skin, strengthens the flesh resistivity.
Based on the layers are more with small lithological substances, clay particles, millipores and hydrophilic substances, the paper analyze the origins of low resistivity reservoirs.
It could be resistivity, if you have a thermocouple.
This paper makes a brief overview on the resistivity tomography of principle, method and mechanism of the formation of cave.
The high resistivity layer shall not be infinitely great or close to surface, otherwise the layer will prevent the current entering the anomaly body and no anomaly will be produced.
The size of current path, resistivity, power density are main factors that effect the temperature field and temperature gradient field at crack tip.
As the annealing temperature rises, the resistivity of alloyed wire reduced and thermal potential raised.
Resistivity apparent formation factor, apparent cement exponent, resistivity index and apparent saturation exponent of shaly sands are related to temperature.
This paper discusses the characteristics of the telluric currents of the area and the origin of the low-resistivity layers.
To be observed on same field in same time, telluric observation is interfered by electric current in measuring the apparent resistivity, and the data are changed to square impulse.
It can predict any logs' curves such as resistivity log, so it could be used as detecting oil and gas. Finally we use the technique to find a favorable area rich in oil, and a trap, Gao81 east.
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