An integrated circuit includes a functional circuit and a capacitor cell. First and second position retainers are coupled between the first member and the second member to releasably secure the second member in a first holding position relative to the first member. Linear roller bearing assemblies and methods of forming linear roller bearing assemblies are also disclosed, as are multi-cylinder Stirling engines and a thermal energy recovery system. The groove blade may have a variety of geometric configurations and varying in width and depth to accommodate the imagination of the user or designer. The first and second driven cable drums are each configured, upon being driven, to rotate.