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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...
The explosion by amount of codes as well as the swelling logic complexity have stifled the performance of the traditional fault-location methods since the resource adopted during this process is unacceptable. Under such a situation, a scheme to locate the faults in complex software more effectively has been proposed in this paper based on networks community theory. First, on the base of establishing...
The electrostatic sensor can measure the level of engine exhaust electrostatic charge, based on electrostatic induction principle between the inducing charge and conductors. This paper proposes the basic design theory of the electrostatic sensor by building electrostatic sensor function and physical models. This study is significant for designing and manufacturing of a probe-type electrostatic sensor...
After the random failure period, CNC machine tools will enter the wear-out failure period as a result of abrasion, fatigue and aging. Therefore, it is extremely important to monitor the changing trend of operation state and thus to construct rational maintenance policy or determine when to scrap it. In this paper, the mean time between failures (MTBF) is chosen to be the characteristic variable of...
The phenomenon of high availability (HA) is of vital importance in cloud architecture. This paper proposes an HA verification framework, called HAVerifier, for OpenStack, a popular open source cloud platform. Fault injection technology has been adopted to verify the system's reliability by determining its health status after injecting faults. The framework proposed in this paper verifies the availability...
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