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.
The term 'ERP' itself is not self-explanatory and refers to the business software that has been designed to record and manage your enterprise data. Types of ERP Systems: Enterprise resource planning, or ERP, is a way of integrating organizational data and processes into a single system. ERP systems will generally have a hardware component, a software component and a process documentation component. ERP systems usually cover several aspects of an organization.