Based on the analyses of 75 pieces of fault deformation monitoring data obtained in the Region of Capital Circle(RCC) in many years, two major expressions of fault deformation anomaly in the unstable period of crustal...Based on the analyses of 75 pieces of fault deformation monitoring data obtained in the Region of Capital Circle(RCC) in many years, two major expressions of fault deformation anomaly in the unstable period of crustal deformation are proposed in the paper, one is the medium term variation lasting 1～2 year or longer time, the other is the rapid deformation of 1～3 months. When the above mentioned two kinds of variations appear in groups, it may be associated with strong seismic activities in North China. In this paper, the method of information synthesis has been used to obtain the common characteristics from individial fault deformation and approach to its relation to the development of earthquake.展开更多
According to data from the China E-commerce Complaint and Rights Safeguard Public Service Platform,information leaks are no more in the top 10 complaint issues,showing that e-commerce companies have made improvements ...According to data from the China E-commerce Complaint and Rights Safeguard Public Service Platform,information leaks are no more in the top 10 complaint issues,showing that e-commerce companies have made improvements to the protection of user information.However,as online purchasing further develops,how to prevent user information leaks and stealing of account information is展开更多
A condition monitoring method of deep-hole drilling based on multi-sensor information fusion is discussed. The signal of vibration and cutting force are collected when the condition of deep-hole drilling on stainless ...A condition monitoring method of deep-hole drilling based on multi-sensor information fusion is discussed. The signal of vibration and cutting force are collected when the condition of deep-hole drilling on stainless steel 0Cr17Ni4Cu4Nb is normal or abnormal. Four eigenvectors are extracted on time-domain and frequency-domain analysis of the signals. Then the four eigenvectors are combined and sent to neural networks to dispose. The fusion results indicate that multi-sensor information fusion is superior to single-sensor information, and that cutting force signal can reflect the condition of cutting tool better than vibration signal.展开更多
文摘Based on the analyses of 75 pieces of fault deformation monitoring data obtained in the Region of Capital Circle(RCC) in many years, two major expressions of fault deformation anomaly in the unstable period of crustal deformation are proposed in the paper, one is the medium term variation lasting 1～2 year or longer time, the other is the rapid deformation of 1～3 months. When the above mentioned two kinds of variations appear in groups, it may be associated with strong seismic activities in North China. In this paper, the method of information synthesis has been used to obtain the common characteristics from individial fault deformation and approach to its relation to the development of earthquake.
文摘According to data from the China E-commerce Complaint and Rights Safeguard Public Service Platform,information leaks are no more in the top 10 complaint issues,showing that e-commerce companies have made improvements to the protection of user information.However,as online purchasing further develops,how to prevent user information leaks and stealing of account information is
文摘A condition monitoring method of deep-hole drilling based on multi-sensor information fusion is discussed. The signal of vibration and cutting force are collected when the condition of deep-hole drilling on stainless steel 0Cr17Ni4Cu4Nb is normal or abnormal. Four eigenvectors are extracted on time-domain and frequency-domain analysis of the signals. Then the four eigenvectors are combined and sent to neural networks to dispose. The fusion results indicate that multi-sensor information fusion is superior to single-sensor information, and that cutting force signal can reflect the condition of cutting tool better than vibration signal.
