Abstract: A multi-source, multiple documents comparison display system for presentation or discussion, installed in a host computer and displayed on a public screen as a multiple document comparison interface using the computer's auxiliary display system. The system is divided into a document collection stage and a comparison display stage. The document collection stage receives documents from multiple resources and decides the number of multiple quadrants to be arranged via the multiple documents comparison interface. The comparison display stage displays each document as a thumbnail, and allows any document to be enlarged and inspected with a control button by clicking on the thumbnail corresponding to the desired document.

Abstract: A method for strengthening an existing concrete column having a concrete body and a plurality of parallel longitudinal steel reinforcements includes the steps of preparing a steel wire cable that includes strands of steel filaments, winding the steel wire cable on the longitudinal steel reinforcements in a spiral manner relative to a centerline of the concrete body, fastening two opposite ends of the steel wire cable to the longitudinal steel reinforcements, and casting a structural material around the steel wire cable, the longitudinal steel reinforcements, and the concrete body.