Abstract: Exemplary embodiments of the present invention comprise pellets comprised of neutron moderating or absorbing materials with a polymer coating. The neutron core moderator pellet 100 comprises a core matrix of neutron absorbing material 102 and a polymer coating 104 that can also serve as a binder for the core 102. The neutron moderating/absorbing material 102 can be selected from a variety of chemical element materials that have been proven to have established neutron capture/absorbing capabilities.

Abstract: Sealing apparatus and method, comprising first and second surfaces or membranes, at least one of which surfaces is deformable, placed in proximity to one another. Urging means cause these surfaces to contact one another in a manner such that the deformable surface "deforms" to conform to the geometry of the other surface, thereby creating a seal. The seal is capable of undergoing multiple cycles of sealing and unsealing.

Abstract: A flexible connector apparatus used to join two stiff non-deformable members, such as piping. The apparatus is provided with one or more flexible sections or assemblies each utilizing a bellows of a rolling cuff type connected between two ridge members, with the bellows being supported by a back-up ring, such that only the curved end sections of the bellows are unsupported. Thus, the bellows can be considered as being of a tube-shaped configuration and thus have high pressure resistance. The components of the flexible apparatus are sealed or welded one to another such that it is fluid tight.