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An online monitoring system of alumina concentration in aluminium electrolysis has been designed directing at the difficult concentration measurement of alumina. Firstly, a current-measuring instrument with anodic guide rod is developed to collect data about the temperature of anodic guide rod and isometric pressure drop. Then a set of upper-computer software based on COM technology is produced, which...
A single-mode three-section coupled-cavity laser with deep etched trenches is designed and fabricated. A narrow linewidth of about 120kHz and a high side-mode suppression ratio (SMSR) of 45dB were obtained.
A memory cell based on n+-Si/ZrO2/Pt structure with self-rectifying properties is demonstrated for write-once-read-many-times (WORM) memory application. The fresh devices can be set to a low resistance state (LRS) as an antifuse and keep in LRS permanently with a rectification ratio exceeding 104. The memory devices show a large on/off ratio of about 106 and narrow resistance distributions before...
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