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Large numbers of experiments have shown that grinding chatter is one of the major forms of host fault performance in grinding processes. In view of this, more advanced monitoring techniques are required to ensure the high reliability of grinders. The empirical mode decomposition (EMD) technique has shown promise for meeting this requirement. In general, EMD has been limited to processing one-dimensional...
To evaluate the life of a packaging box, accelerated life testing was conducted under multiple environmental stresses. Based on the potential failure mode and mechanism, sensitive stresses were determined in accelerated life testing. The method of events compression and increasing stress levels was used for accelerated life testing based on the life profile of packaging box. The test included an environmental...
Environmental stress screening is an effective method to eliminate the potential defects of electronic products. In order to improve the efficiency and effectiveness of environmental stress screening, the acceleration effect was derived and analyzed based on the quantitative environmental stress screening mathematical principles of GJB/Z34. Then the high-temperature aging, temperature cycling, and...
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