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Dielectric loss factor (tandelta), largest repeatedly occurring PD magnitude and breakdown voltage of large generator stator bars with different internal corona protection were studied in this paper. It was found the electric properties which, the increment of tandelta, breakdown voltage and partial discharge magnitude etc. of the bars with internal corona protection were excelled than the bars without...
Copper ion exchange technique was used to fabricate soda-lime glass planar waveguides. Prism coupling method was applied to measure the effective indices, and the refractive index profiles were reconstructed through Inverse WKB (IWKB) method. Optical absorption and photoluminescence analysis were carried out as well. The emission spectra centered at 520nm are attributed to Cu+ located in distorted...
Copper ion exchange technique was used to fabricate soda-lime glass planar waveguides. The refractive indices profile was constructed through Inverse WKB method. Optical absorption and photoluminescence analysis were performed as well. Ion exchange time and temperature were both found to play an important role in waveguides photoluminescence properties.
This paper reports on measurements and analyses of field emission from both copper and aluminium cathodes. To analyze the data, a numerical model of electron emission was developed using a transfer matrix function method. The work function and effective field enhancement factor of the cathodes were obtained.
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