A hip implant assembly including body exhibiting a substantially spherical shaped ball and an elongated stem. The system processes aircraft approach category data and determines the protected airspace based at least in part on the processed aircraft approach category. The hardware client itself is authenticated in the first authentication layer in order to establish a link to the network. The conversion process includes: arranging the indices in an ordered sequence; organizing the sequence into groups of vectors; splitting each group into a given number of vectors; and encoding the vectors independently from one another. A beam pattern of output light output from the second lens structure is determined according to a polarization direction of the incident beam incident on the first lens structure, the first and second extraordinary refractive index axis directions of the first and second lens structures, and the first and second alignment directions of the first and second lens structures. The alarm signal is modulated differently based on a type of the alarm event.