On December 21, 20：10, a stray dog consecutively attacked 10 people in Lengshui Village, Ningyuan County, Yongzhou City, Hunan Province, China. The dog was killed by the local CDC staff and vicinity villager, its bra...On December 21, 20：10, a stray dog consecutively attacked 10 people in Lengshui Village, Ningyuan County, Yongzhou City, Hunan Province, China. The dog was killed by the local CDC staff and vicinity villager, its brain tissue sample was taken within 24 h. The epidemic focus was disinfected and the injured people received post exposure prophylaxis （PEP）. Pathogens were detected in the tissue sample by the provincial CDC. The immunity and safety of rabies vaccine were assayed after PEP, the injured people were regularly followed up in the following 2 y and 6 mon.展开更多
A numerical model was proposed to describe the modulus variation of mortar exposed to external sulfate attack and the effectivity was verified by experiments. The model joints statistical evolution of microcracks to e...A numerical model was proposed to describe the modulus variation of mortar exposed to external sulfate attack and the effectivity was verified by experiments. The model joints statistical evolution of microcracks to effective elastic modulus with microcracks and is applied to predict the damage degree of mortar attacked by sulfate. The experimental results show that the model can predict the modulus variation development of the specimen and the microcraks density. The elastic modulus values calculated by the model are consistent with that measured by experiments. The model focuses on nucleation of microcracks and finds that the theoretical results of microcracks number density show a linear growth over time in mortar. Compared with other sulfate attack damage model, this model provides a more suitable damage evolution equation that can be used to analyze the chemically assisted damage.展开更多
基金supported by the National Department Public Benefit Research Foundation(201103032)
文摘On December 21, 20：10, a stray dog consecutively attacked 10 people in Lengshui Village, Ningyuan County, Yongzhou City, Hunan Province, China. The dog was killed by the local CDC staff and vicinity villager, its brain tissue sample was taken within 24 h. The epidemic focus was disinfected and the injured people received post exposure prophylaxis （PEP）. Pathogens were detected in the tissue sample by the provincial CDC. The immunity and safety of rabies vaccine were assayed after PEP, the injured people were regularly followed up in the following 2 y and 6 mon.
基金Funded by the National Key R&D Program of China(No.2017YFB0309904)the 973 Program of China(No.2015CB655100)
文摘A numerical model was proposed to describe the modulus variation of mortar exposed to external sulfate attack and the effectivity was verified by experiments. The model joints statistical evolution of microcracks to effective elastic modulus with microcracks and is applied to predict the damage degree of mortar attacked by sulfate. The experimental results show that the model can predict the modulus variation development of the specimen and the microcraks density. The elastic modulus values calculated by the model are consistent with that measured by experiments. The model focuses on nucleation of microcracks and finds that the theoretical results of microcracks number density show a linear growth over time in mortar. Compared with other sulfate attack damage model, this model provides a more suitable damage evolution equation that can be used to analyze the chemically assisted damage.
