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Article
Open AccessAcute effects of ambient PM2.5 on lung function among schoolchildren
Previous studies have found that fine particulate matter (PM2.5) air pollution is associated with decreased lung function. However, most current research focuses on children with asthma, leading to small sample s...
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Article
Open AccessCharacterization and health risk assessment of PM2.5-bound polycyclic aromatic hydrocarbons in 5 urban cities of Zhejiang Province, China
In 2015, we measured polycyclic aromatic hydrocarbons (PAHs) in atmospheric fine particulate matter (PM2.5) collected from 5 cities in Zhejiang Province. The mean toxic equivalent quotient (TEQ) values of benzo(a...
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Article
A value-based maintenance optimization method for failure prevention based on reliability modeling of a hybrid assembly system
The effective maintenance policy for the fixtures of the assembly system will guarantee good process capability and product quality to a great extent. Traditional maintenance schedules for the assembly system,...
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Article
Open AccessNonlinear dynamics of trions under strong optical excitation in monolayer MoSe2
By employing ultrafast transient reflection measurements based on two-color pump-probe spectroscopy, the population and valley polarization dynamics of trions in monolayer MoSe2 were investigated at relatively hi...
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Article
Dynamic maintenance plan optimization of fixture components for a multistation autobody assembly process
Process-oriented tolerance design and maintenance policy of the fixture system are major ways to ensure the dimension quality of autobodies. Traditional maintenance policy mostly uses a fixed threshold conside...
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Article
A bayesian based process monitoring and fixture fault diagnosis approach in the auto body assembly process
The auto body process monitoring and the root cause diagnosis based on data-driven approaches are vital ways to improve the dimension quality of sheet metal assemblies. However, during the launch time of the p...
