A load-carrying modular structure assembled from 3-D structural modules constituting parallelepipeds with rectangular faces, the 3-D modules adjoining each other along said faces. When rewriting has ended properly, electronic mail with the next divided firmware attached is transmitted based on the division number, divisor value, machine type and module indicated in a Subject field. Accordingly, the reduced space requirements may translate to reduced dimensions for the electronic device. The post bracket is used by clearing out the old post, inserting the first portion and securing the bracket, and then attaching the post. 5% to 40% by weight of the alkoxylated polyalkyleneimine;ii) the alkoxy chains represent from 60% to 99% by weight of the alkoxylated polyalkyleneimine; andb) a bleach system comprising bleach and optionally a bleach enhancer. The DSP is also capable of transmitting the extracted features to an external computing device for further analysis.