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Background. Meihuaquan has not only survived four successive dynasties as well as wars and other social upheavals, but it is, in fact, enjoying revitalization against the background of urbanization. Aim. What is the social foundation of the revival of Meihuaquan in rural of north China? The focus of this paper is how this revival is supported by social institutions, especially the group identity of...
Angular glint noise is a kind of correlated and non-gaussian noise. When dealing with tracking problem in correlated and non-gaussian noise environment, the performance of traditional Unscented Kalman Filter(UKF) will degrade significantly. In order to solve the target tracking problem under the angular glint, this paper raises a new UKF algorithm based on the measurement equations linearization,...
The failure probability is one of the two elements of risk; the correct calculation of failure probability is a premise that risk management of Rural Hydropower is implemented in China. The operational status of hydraulic structures for Rural Hydropower was firstly evaluated comprehensively; then the correlation between operational status and failure probability of hydraulic structures was used to...
Passive tracking of motive target is in difficulty and interacting multiple model (IMM) is the classical method that requires accurate and timely target maneuver detection. In order to passively locate moving target using aerial mobile observe, a new hybrid particle filter positioning algorithm is proposed based on bearings crossing locating method. According to the existing initialization problems...
The seismic analysis of underground structures is relatively complex, and there is no unified point of view. In this paper, we analysis the dynamic response characteristics of the Dakai subway station by the horizontal seismic loads in ANSYS, and take into account the three artificial boundary conditions: fixed boundary, viscous boundary and visco-elastic boundary. The results show that the stress...
On the basis of the current management of popularized education in universities, the phenomenon of low quality rehabilitation (Pre) course is analyzed. Under the guide of constructivist learning theory, and with the help of modern teaching techniques, a unique teaching system is established for efficient teaching, monitoring and management. The framework and structure of the system are specified....
According to the engineering practice of municipal solid waste landfill, the dynamic response of landfill based on the finite element method is implemented. The equivalent linearization method is used to consider the non-linear dynamic response characteristics. In order to fully reflect the impact of the seismic motion characteristics of the dynamic response, three actual-waves and one artificial...
The mechanical properties, creep rupture strength, creep damage and failure characteristics of dissimilar metal welded joint (DMWJ) between martensitic (SA213T91) and bainitic heat-resistant steel (12Cr2MoWVTiB) have been investigated by means of pulsed argon arc welding, high temperature accelerated simulation, mechanical, creep rupture test, scanning electronic microscope (SEM). The results show...
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