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Periodontitis is an oral‐bacteria‐directed disease that occurs worldwide. Currently, periodontal pathogens are mostly determined using traditional culture techniques, next‐generation sequencing, and microbiological screening system. In addition to the well‐known and cultivatable periodontal bacteria, we aimed to discover a novel periodontal pathogen by using DNA sequencing and investigate...
This paper studies the image fusion algorithm of edge corrosion on large thickness difference titanium alloy with DR detection. First collected the DR digital image of large thickness difference workpiece, then calculated the edge width of image with ImageJ, and finally handled with edge corrosion area through the image fusion technology of PCNN. The information of fused image was more wealth than...
This paper took carbon fiber reinforced polymer (CFRP) for example, to access to the damage size by ultrasonic C-scan detection method, and analyze the relationship between the impact energy and 4 kinds of damage parameters ,including the damage area ,the maximum damage diameter, the damage length and the damage width. The results show that: the impact damage state of the composites can be described...
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