A double clamp whose jaws are mounted on pivots. Described herein are systems, method and apparatus that produce fully tractable development of agent-oriented specification modeled with methodology fragment for analyzing complex multiagent systems and policies for autonomic systems from requirements through to code generation. At least two generally vertical walls extend in the first direction on opposing ends of the storage unit. These properties included decreased material thickness, increased density, an altered nodefibril morphology, and a more consistent web in the case of flat material.