A management system for vehicle air-conditioning and a method of managing the same are provided. In some embodiments, the implants are particularly advantageous for use between opposing vertebral bodies to facilitate stabilization or arthrodesis of an intervertebral joint. The barbs extend from the fins to engage a bone structure and increase the holding force of the surgical tack. Additionally, each focusing element and its corresponding detector-array sub-section defines an optical path and each detector-array section has associated with it at least two such optical paths.