Conductance image

In the conductance image, a dark color represents high electronic conductance, whereas a white color corresponds to areas of low or zero electronic conductance. Taking into account that the tip is in physical contact with the oxide, the magnitude of the current is determined by the local electronic properties of the electrode and the tip, and the tip-sample voltage difference. The surface conductance image of the cathode from the fresh cell... 

The conductance image of the tested cathode reveals that almost the entire electrode surface became insulating except for a few locations, mainly in the deep crevices and intergranular spaces, which remained conductive. 

Potential-dependent photoluminescence experiments provide information not only on quantum efficiencies but also on radiative or non-radiative recombination centres. Luminescence images of electrodes can be produced with the same set-ups that are used for photocurrent or microwave conductivity imaging, with the additional installation of a photodetector or photomultiplier for the measurement of luminescence. As with other imaging experiments, the observed images may show a luminescence distribution that depends strongly on applied electrode potential (see Section 12.8). 

Figure 4. Left - topography of microtomed cross-section through a multilayer polyolefin packaging film. Centre - raw thermal conductivity contrast image. Right - thermal conductivity image postprocessing with trained neural net program.

Figure 14 Topographic top left) and thermal conductivity (bottom left) images of the surface of a paracetamol tablet. The right-hand plot shows the results of localised microthermal analysis on the two phases revealed in the conductivity image...

D tbcmiai conductivity image of a polybutadienc polyvinyl chloride blend (with permission of TA instruments). 

Bera T. K., Biswas S. K., Rajan K., and Nagaraju J., Improving conductivity image quality using block matrix-based multiple regularization (BMMR) technique in EIT A simulation study, /. Elec. Bioimpedance, vol. 2, pp. 33-47, doi 10.5617/jeb.l70, 2011. 

SEM micrographs have been obtained using a Jeol microscope model T 300. The fractured samples were gold sputtered to make them electrically conductive. Image analysis was performed using an optical microscope Leica connected with an image analyzer Quantimed 500. 

Conductivities of muscle and blood (table 1) were then used with the tissue volume data to produce a conductivity image with 35 x 35 x 1 resolution for FDM calculation. The conductivity image was generated for each of the 60 time-steps of dynamics and 3 frequencies. FDM calculation to find electrode-to-electrode impedance measurement value was performed for each time-step and frequency. 

Figure 25. One-to-one correspondence between (a) dislocation etch-pit distribution, (b) cathodoluminescence images and (c) electron-beam-induced conductivity images of the same region of a GaP layer (104).

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