The simplest mathematical method to estimate tortuosity is the arc-chord ratio: the ratio of the length of the curve (L) to the distance between the ends of it (C): Arc-chord ratio equals 1 for a straight line and is infinite for a circle.
ERS is a set of computer programs set to run in a specified order on the UNISYS Mainframe at the Enterprise. Computing Center in Martinsburg, West Virginia and the Enterprise Computing Center in Memphis, (ECC-MTB and. ECC-MEM) Tennessee. All ERS information is housed on the ERS database at each computing center.
LISTSERV is the original and industry standard email list management software. Continuously developed to meet the latest demands, LISTSERV provides everything you need to manage all of your opt-in email lists, including email newsletters, announcements, discussion groups and email communities.ISTSERV is the original and industry standard email list management software. Continuously developed to meet the latest demands, LISTSERV provides everything you need to manage all of your opt-in email lists, including email newsletters, announcements, discussion groups and email communities.