Normally unmanned installation Normally unmanned installation A Normally Unmanned Installation (NUI) is a type of automated offshore Oil/Gas platform designed to be primarily operated remotely, without the constant presence of personnel. These generally were characterized by their small size, often consisting of just a well bay with a helipad on top. They are often a compromise of providing the convenience of surface wellheads, which are easier to build and maintain, while avoiding the high operating costs of a full production platform. They are generally only used in shallower water, where constructing many small NUIs is a relatively easy and cheap option as compared
Rear admiral rank; and rear admiral (RADM), a two-star rank. Prior to that, a combination of ranks was used. In Vietnam, the equivalent to rear admiral is the "chuẩn đô đốc" or "đề đốc". Rear admiral Rear admiral is a naval commissioned officer rank above that of a commodore (U.S. equivalent of rear admiral lower half) and captain, and below that of a vice admiral. It is generally regarded as the lowest of the "admiral" ranks, which are also sometimes referred to as "flag officers" or "flag ranks". In many navies it is referred to as a two-star rank (OF-7)/(O-7). It originated