Abstract Loyalty programs in the form of punch cards that can be redeemed for benefits have long been a ubiquitous element consumer landscape. However, their increasingly popular digital equivalents, while providing more convenience and better bookkeeping, pose considerable privacy risk. This paper introduces privacy-preserving card protocol allows firms to digitize loyalty without forcing cust...

Hurricane Irma affected the Florida peninsula from 10 to 12 September 2017. The peninsula's east coast was hit hardest: city of Jacksonville flooded around St. Johns River estuary with storm surge that exceeded 1.5 m and rainfall surpassed 20 cm in 24 hr. This study used observations such as water wind velocities, river discharge, salinity data determine whether compounding forcings influenced ...

The purpose of this study was to describe biomechanical parameters of head, upper and lower body extremities during a straight right punch throw related to performance and injury mechanism. Subjects were eight elite right-handed male (age 20.4 ± 2.1yrs height 177.4 ± 8.5 cm mass 70.4 ± 16.8 kg) amateur boxers. 3D motion analysis was used to assess the kinematics of the right side extremities ...

The solidification process during squeeze casting is analyzed based on the classical solidification and plastic deformation theory. The linear relationship between punch velocity and the solidification rate is established if the density change of molten meals is neglected. To obtain defect-free castings, the punch velocity should be larger than the solidification rate. The densification mechani...

A so called 'three-section' model for air bending is presented. It is assumed that a state of plane strain exists and that Bernoulli's law is valid. The material behaviour is described with Swift's equation, and the change of Young's modulus under deformation is addressed. As compared with other models, the model described in the paper is capable of generating information such as required punch...