With the speeding up of China’s urbanization process,the problems related to the left-behind children-especially the psychological matter–have become more and more prominent.To solve such kind of problems requires t...With the speeding up of China’s urbanization process,the problems related to the left-behind children-especially the psychological matter–have become more and more prominent.To solve such kind of problems requires the intervention of the professionals like the social workers.Due to long term lack of companionship from the parents,the left-behind children suffers from insufficient emotion and internal innovation,which leads to low self efficiency.Furthermore,their poor communication skills with other people causes their withdrawal,suppress emotions,accumulate inwardly and result in severe negative impact.Therefore at this moment,emotional intervention becomes particularly crucial.The left-behind children can open up about their true thoughts through the communication with the social workers,who can promptly provide emotional comfort for their inner struggles to get result of mental nourishing.Therefore,emotional intervention renders service with warmth and highlights humanistic care.展开更多
The tensile response, the low cycle fatigue （LCF） resistance, and the creep behavior of an aluminum （A1） cast alloy are studied at ambient and elevated temperatures. A non-contact real-time optical extensometer ba...The tensile response, the low cycle fatigue （LCF） resistance, and the creep behavior of an aluminum （A1） cast alloy are studied at ambient and elevated temperatures. A non-contact real-time optical extensometer based on the digital image correlation （DIC） is developed to achieve strain measurements without damage to the specimen. The optical extensometer is validated and used to monitor dynamic strains during the mechanical experiments. Results show that Young＇s modulus of the cast alloy decreases with the increasing temperature, and the percentage elongation to fracture at 100 ℃ is the lowest over the temperature range evaluated from 25 ℃ to 300 ℃. In the LCF test, the fatigue strength coefficient decreases, whereas the fatigue strength exponent increases with the rising temperature. The fatigue ductility at 100 ℃. As expected, the resistance to and changes from 200 ℃ to 300 ℃. coefficient and exponent reach maximum values creep decreases with the increasing temperature展开更多
文摘With the speeding up of China’s urbanization process,the problems related to the left-behind children-especially the psychological matter–have become more and more prominent.To solve such kind of problems requires the intervention of the professionals like the social workers.Due to long term lack of companionship from the parents,the left-behind children suffers from insufficient emotion and internal innovation,which leads to low self efficiency.Furthermore,their poor communication skills with other people causes their withdrawal,suppress emotions,accumulate inwardly and result in severe negative impact.Therefore at this moment,emotional intervention becomes particularly crucial.The left-behind children can open up about their true thoughts through the communication with the social workers,who can promptly provide emotional comfort for their inner struggles to get result of mental nourishing.Therefore,emotional intervention renders service with warmth and highlights humanistic care.
基金supported by the National Natural Science Foundation of China(Nos.11372173,11672347,and 11727804)the Science and Technology Development Foundation of Shanghai Automobile Industry(No.1514)
文摘The tensile response, the low cycle fatigue （LCF） resistance, and the creep behavior of an aluminum （A1） cast alloy are studied at ambient and elevated temperatures. A non-contact real-time optical extensometer based on the digital image correlation （DIC） is developed to achieve strain measurements without damage to the specimen. The optical extensometer is validated and used to monitor dynamic strains during the mechanical experiments. Results show that Young＇s modulus of the cast alloy decreases with the increasing temperature, and the percentage elongation to fracture at 100 ℃ is the lowest over the temperature range evaluated from 25 ℃ to 300 ℃. In the LCF test, the fatigue strength coefficient decreases, whereas the fatigue strength exponent increases with the rising temperature. The fatigue ductility at 100 ℃. As expected, the resistance to and changes from 200 ℃ to 300 ℃. coefficient and exponent reach maximum values creep decreases with the increasing temperature
