A tube shaped and fluid inflatable and electrically heatable in-situ pipe repair device comprising a first outer elastomeric tube layer and a resistive heating component comprised of electrically conductive fibers braided over an elastomeric core. An embodiment method of controlling a shared memory includes concurrently scanning-in a plurality of readwrite commands for respective transactions. Control chambers are associated with the multi-part injection valve member for actuating it. Some hydrogel materials do not have this type of homogeneous interconnected macroporosity, thus large target molecules cannot readily diffuse through them.