Disclosed is a poly BCF carpet modified cross-section yarn having an modification ratio and a arm angle within a specific range and a Y-shaped cross-section, and a method for preparing it. The structure has or develops a capillary effect at which the quotient from capillary work and adhesion work is larger 1. The mirroring engine compares data in the write request with corresponding data stored in memory. 01 \u03bcm to 200 \u03bcm, and an aspect that the biodegradable resin is polylactic acid. The settlement entity is interfaced with the billing accumulator, and includes settlement logic for converting each stored dispatch call data record to a billing record for each of at least two of the dispatch networks. The method writes an object information block to the information storage medium, where that object information block comprises the first sequence number, the first blockid, and the second blockid.