Network Controllability is concerned about the structural controllability of a network. Fundamental concepts of controllability and observability for MIMO LTI systems. Controllability and observability are dual aspects of the same problem. The observability and controllability of a system are mathematical duals. Other aspects which are also studied are controllability and observability. Note that Iddq test inputs require only controllability, and not observability. Second, the circuit may be re-defined for better fault detectibility (improved controllability and observability). Pneumatic artificial muscles also offer greater flexibility, controllability and lightness compared to conventional pneumatic cylinders. Aquaplaning can have serious adverse effects on ground controllability and braking efficiency. Some of these problems, such as stability, controllability, and durability, are inherent to all aircraft. Accountability is divided into five categories&colon; transparency, liability, controllability, responsibility, and responsiveness. In social exchange, social connections can be sources of stability and controllability. The challenges for an industrial application technology are productivity, quality controllability, and affordability. To solve the controllability problem, many works about variational auto-encoder are proposed. The amount and nature of neutron moderation affects reactor controllability and hence safety.