Design and fabrication of a focus-tunable liquid cylindrical lens based on electrowetting.

In this study, a focus-tunable liquid cylindrical lens based on electrowetting was designed and fabricated. The cylindrical cavity usually used in common electrowetting zoom spherical lenses was replaced by a 20 mm × 10 mm × 8 mm cuboid cavity, in which the interface of two liquids formed a toroid owing to the electrowetting effect. The proposed liquid cylindrical lens can serve as either a converging or diverging lens with the response time under 110 ms by changing the supplied voltage.

Analysis of Methods to Reduce Jogging Injuries from the Perspective of Risk Cognition.

Injuries are common events that impair the function of joggers; it is important to take effective measures to reduce the incidence of jogging injuries to maximize its benefits. We collected questionnaires from 3468 Chinese exercisers using a stratified random sampling method. We analyzed these data using AMOS 22.

Jogging-related Risk Cognition and the Stimulation of Risky Behavior during Jogging.

With the rapid increase in the number of Chinese joggers, the number of people incurring injuries from jogging also has increased. Evaluating the relationship between jogging-related risk cognition and risky behaviors while jogging will help improve jogging-related risk cognition among joggers. We collected questionnaires about jogging-related risky behaviors and risk cognition from 3468 Chinese exercisers using a stratified random sampling method.