The paper presents the research into the stress state of roller teeth using FEM (finite element method). The results show that different structure parameter causes a change in roll stress.

采用有限单元法对轧辊辊齿的应力状态进行了研究，得出了不同结构参数对轧辊应力变化的影响。

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Some patients tell me that they are so connected that even before brushing their teeth or making coffee, they will roll over to check their phone- when a more appropriate choice may be to spend a few extra minutes in bed with their loved ones.

FORBES: Life "Unplugged" May Actually Make You Happier